Restoring authorship annotation for Mikhail Borisov <borisov.mikhail@gmail.com>. Commit 2 of 2.

110 files changed, 13526 insertions, 13526 deletions

diff --git a/contrib/libs/cctz/tzdata/factory.cpp b/contrib/libs/cctz/tzdata/factory.cpp
index f3d244a379..5a4b4a27b6 100644
--- a/contrib/libs/cctz/tzdata/factory.cpp
+++ b/contrib/libs/cctz/tzdata/factory.cpp
@@ -4,7 +4,7 @@
 
 #include <util/generic/string.h>
 #include <util/stream/str.h>
-#include <util/string/builder.h> 
+#include <util/string/builder.h>
 
 namespace cctz_extension {
     namespace {
@@ -21,7 +21,7 @@ namespace cctz_extension {
             static std::unique_ptr<cctz::ZoneInfoSource> LoadZone(const std::string& zoneName) {
                 TString resourceName = TStringBuilder() << "/cctz/tzdata/"sv << zoneName;
                 TString tzData;
-                if (!NResource::FindExact(resourceName, &tzData)) { 
+                if (!NResource::FindExact(resourceName, &tzData)) {
                     return nullptr;
                 }
                 return std::unique_ptr<cctz::ZoneInfoSource>(new TZoneInfoSource(std::move(tzData)));
diff --git a/contrib/libs/cctz/tzdata/update_tzdata.py b/contrib/libs/cctz/tzdata/update_tzdata.py
index 40ae7578ad..9c3cd07352 100755
--- a/contrib/libs/cctz/tzdata/update_tzdata.py
+++ b/contrib/libs/cctz/tzdata/update_tzdata.py
@@ -37,11 +37,11 @@ def create_cmakelists(zoneinfo_dir):
         with open(os.path.join(generated_dir, tz_hash), 'w') as f:
             f.write(tz_content)
 
-    yamake_template =  ( 
-        'RESOURCE(\n' 
-        '{}\n' 
-        ')' 
-    ) 
+    yamake_template =  (
+        'RESOURCE(\n'
+        '{}\n'
+        ')'
+    )
     resources = '\n'.join('    generated/{} /cctz/tzdata/{}'.format(tz_hash, tz_name) for tz_name, tz_hash in sorted(tz_to_hash.iteritems()))
 
     all_hashes = set(tz_to_hash.values())
@@ -51,7 +51,7 @@ def create_cmakelists(zoneinfo_dir):
         subprocess.check_call(['svn', cmd, '--force', fn])
 
     with open('ya.make.resources', 'w') as f:
-        print >>f, yamake_template.format(resources) 
+        print >>f, yamake_template.format(resources)
 
 def get_latest_iana_version():
     index_html = urllib2.urlopen('http://www.iana.org/time-zones').read()
diff --git a/contrib/libs/curl/lib/curl_config.h b/contrib/libs/curl/lib/curl_config.h
index f1304e4bf2..e58dec7079 100644
--- a/contrib/libs/curl/lib/curl_config.h
+++ b/contrib/libs/curl/lib/curl_config.h
@@ -25,7 +25,7 @@
 // Do not misrepresent host on Android and iOS.
 #undef OS
 #define OS "arcadia"
- 
+
 // c-ares resolver is known to be buggy.
 //
 // There is no way to configure it properly without a JVM on Android,
@@ -39,7 +39,7 @@
 //
 //
 // On Linux it caches /etc/resolv.conf contents and does not invalidate it properly
- 
+
 #if defined(ARCADIA_CURL_DNS_RESOLVER_ARES)
     #define USE_ARES
 #elif defined(ARCADIA_CURL_DNS_RESOLVER_MULTITHREADED)
@@ -64,4 +64,4 @@
     #endif
 #else
     #error "No dns resolver is specified or resolver specification is wrong"
-#endif 
+#endif
diff --git a/contrib/libs/curl/ya.make b/contrib/libs/curl/ya.make
index 27679394bb..00027df424 100644
--- a/contrib/libs/curl/ya.make
+++ b/contrib/libs/curl/ya.make
@@ -33,13 +33,13 @@ ADDINCL(
 )
 
 IF (NOT OS_WINDOWS)
-    PEERDIR( 
+    PEERDIR(
         contrib/libs/nghttp2
-    ) 
-ENDIF() 
- 
+    )
+ENDIF()
+
 NO_COMPILER_WARNINGS()
- 
+
 NO_RUNTIME()
 
 IF (MAPSMOBI_BUILD_TARGET)
@@ -47,8 +47,8 @@ IF (MAPSMOBI_BUILD_TARGET)
     CFLAGS(
         -DMAPSMOBI_BUILD
     )
-ENDIF() 
- 
+ENDIF()
+
 DEFAULT(ARCADIA_CURL_DNS_RESOLVER ARES)
 
 CFLAGS(
diff --git a/contrib/libs/cxxsupp/builtins/ya.make b/contrib/libs/cxxsupp/builtins/ya.make
index 6e988c13e3..d2c319c927 100644
--- a/contrib/libs/cxxsupp/builtins/ya.make
+++ b/contrib/libs/cxxsupp/builtins/ya.make
@@ -116,11 +116,11 @@ IF (OS_DARWIN OR OS_IOS)
     )
 ENDIF()
 
-IF (ARCH_ARM) 
-    SRCS( 
-        clear_cache.c 
-        multc3.c 
-    ) 
-ENDIF() 
- 
+IF (ARCH_ARM)
+    SRCS(
+        clear_cache.c
+        multc3.c
+    )
+ENDIF()
+
 END()
diff --git a/contrib/libs/cxxsupp/libcxx/glibcxx_eh_cxx17.cpp b/contrib/libs/cxxsupp/libcxx/glibcxx_eh_cxx17.cpp
index cc2bd0d223..5e5ad083ba 100644
--- a/contrib/libs/cxxsupp/libcxx/glibcxx_eh_cxx17.cpp
+++ b/contrib/libs/cxxsupp/libcxx/glibcxx_eh_cxx17.cpp
@@ -1,17 +1,17 @@
-#include <cxxabi.h> 
- 
-/** 
- * libc++ expects std::uncaught_exceptions() to be provided by C++ runtime library. 
- * 
- * GCC versions prior to GCC 6 did not provide this function yet, but it can be 
- * implemented using its API. 
- * 
- * This implementation should cover ubuntu-12, ubuntu-14, ubuntu-16. 
- */ 
- 
-namespace std { 
-    int uncaught_exceptions() noexcept { 
-        const auto* globals{__cxxabiv1::__cxa_get_globals()}; 
-        return static_cast<int>(globals->uncaughtExceptions); 
-    } 
-} 
+#include <cxxabi.h>
+
+/**
+ * libc++ expects std::uncaught_exceptions() to be provided by C++ runtime library.
+ *
+ * GCC versions prior to GCC 6 did not provide this function yet, but it can be
+ * implemented using its API.
+ *
+ * This implementation should cover ubuntu-12, ubuntu-14, ubuntu-16.
+ */
+
+namespace std {
+    int uncaught_exceptions() noexcept {
+        const auto* globals{__cxxabiv1::__cxa_get_globals()};
+        return static_cast<int>(globals->uncaughtExceptions);
+    }
+}
diff --git a/contrib/libs/cxxsupp/libcxx/import b/contrib/libs/cxxsupp/libcxx/import
index 60f276b136..9b93145897 100755
--- a/contrib/libs/cxxsupp/libcxx/import
+++ b/contrib/libs/cxxsupp/libcxx/import
@@ -17,6 +17,6 @@ cp libcxx/LICENSE.TXT ../LICENSE.TXT
 cd ..
 rm -rf tmp
 rm src/CMakeLists.txt include/CMakeLists.txt
- 
-# Fix tabs and trailing spaces 
-find -type f | xargs sed -e 's/\t/    /g' -e 's/ *$//' -i 
+
+# Fix tabs and trailing spaces
+find -type f | xargs sed -e 's/\t/    /g' -e 's/ *$//' -i
diff --git a/contrib/libs/cxxsupp/libcxx/include/__config b/contrib/libs/cxxsupp/libcxx/include/__config
index 723053f7d6..bdc54b92d1 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__config
+++ b/contrib/libs/cxxsupp/libcxx/include/__config
@@ -418,8 +418,8 @@
          (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ >= 130000) || \
          (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ >= 60000))
 #      define _LIBCPP_HAS_ALIGNED_ALLOC
-#      define _LIBCPP_HAS_TIMESPEC_GET 
-#    endif 
+#      define _LIBCPP_HAS_TIMESPEC_GET
+#    endif
 #  endif // __APPLE__
 #endif
 #endif // __has_attribute(using_if_exists)
@@ -441,7 +441,7 @@
 #endif
 #if defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) &&       \
     (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)
-#  define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 
+#  define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
 #endif
 
 #if __has_feature(cxx_alignas)
@@ -458,7 +458,7 @@ typedef __char32_t char32_t;
 #endif
 
 #if !__has_feature(cxx_exceptions)
-#  define _LIBCPP_NO_EXCEPTIONS 
+#  define _LIBCPP_NO_EXCEPTIONS
 #endif
 
 #if !(__has_feature(cxx_strong_enums))
@@ -521,7 +521,7 @@ typedef __char32_t char32_t;
 #define _LIBCPP_NORETURN __attribute__((noreturn))
 
 #if !defined(__EXCEPTIONS)
-#  define _LIBCPP_NO_EXCEPTIONS 
+#  define _LIBCPP_NO_EXCEPTIONS
 #endif
 
 #if !defined(__SANITIZE_ADDRESS__)
@@ -633,8 +633,8 @@ typedef __char32_t char32_t;
 #    define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
 #    define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
 #  else
-#    define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 
-#    define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 
+#    define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
+#    define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS
 #  endif
 #  define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS
 #  define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllexport)
@@ -901,12 +901,12 @@ typedef unsigned int   char32_t;
 #if !defined(_LIBCPP_DEBUG)
 # define _LIBCPP_DEBUG_LEVEL 0
 #elif _LIBCPP_DEBUG == 0
-# define _LIBCPP_DEBUG_LEVEL 1 
-#elif _LIBCPP_DEBUG == 1 
-# define _LIBCPP_DEBUG_LEVEL 2 
-#else 
-# error Supported values for _LIBCPP_DEBUG are 0 and 1 
-#endif 
+# define _LIBCPP_DEBUG_LEVEL 1
+#elif _LIBCPP_DEBUG == 1
+# define _LIBCPP_DEBUG_LEVEL 2
+#else
+# error Supported values for _LIBCPP_DEBUG are 0 and 1
+#endif
 
 // Libc++ allows disabling extern template instantiation declarations by
 // means of users defining _LIBCPP_DISABLE_EXTERN_TEMPLATE.
@@ -1096,10 +1096,10 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
 #if defined(_LIBCPP_COMPILER_CLANG_BASED) && !__has_feature(cxx_rtti)
 #  define _LIBCPP_NO_RTTI
 #elif defined(__GNUC__) && !defined(__GXX_RTTI)
-#  define _LIBCPP_NO_RTTI 
-#elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI) 
-#  define _LIBCPP_NO_RTTI 
-#endif 
+#  define _LIBCPP_NO_RTTI
+#elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI)
+#  define _LIBCPP_NO_RTTI
+#endif
 
 #ifndef _LIBCPP_WEAK
 #define _LIBCPP_WEAK __attribute__((__weak__))
diff --git a/contrib/libs/cxxsupp/libcxx/include/__debug b/contrib/libs/cxxsupp/libcxx/include/__debug
index 3acd97da29..771e431632 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__debug
+++ b/contrib/libs/cxxsupp/libcxx/include/__debug
@@ -34,7 +34,7 @@
 #   define _LIBCPP_DEBUG_ASSERT(x, m) ((void)0)
 #   define _LIBCPP_ASSERT_IMPL(x, m) ((x) ? (void)0 : _VSTD::__libcpp_debug_function(_VSTD::__libcpp_debug_info(__FILE__, __LINE__, #x, m)))
 #elif _LIBCPP_DEBUG_LEVEL == 2
-#   define _LIBCPP_DEBUG_ASSERT(x, m) _LIBCPP_ASSERT(x, m) 
+#   define _LIBCPP_DEBUG_ASSERT(x, m) _LIBCPP_ASSERT(x, m)
 #   define _LIBCPP_ASSERT_IMPL(x, m) ((x) ? (void)0 : _VSTD::__libcpp_debug_function(_VSTD::__libcpp_debug_info(__FILE__, __LINE__, #x, m)))
 #else
 #   error _LIBCPP_DEBUG_LEVEL must be one of 0, 1, 2
@@ -221,7 +221,7 @@ public:
 
     template <class _Cont>
     _LIBCPP_INLINE_VISIBILITY static __c_node* __create_C_node(void *__mem, void *__c, __c_node *__next) {
-        return ::new (__mem) _C_node<_Cont>(__c, __next); 
+        return ::new (__mem) _C_node<_Cont>(__c, __next);
     }
 
     template <class _Cont>
diff --git a/contrib/libs/cxxsupp/libcxx/include/__hash_table b/contrib/libs/cxxsupp/libcxx/include/__hash_table
index 30ae07aab9..bd97027c1a 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__hash_table
+++ b/contrib/libs/cxxsupp/libcxx/include/__hash_table
@@ -38,7 +38,7 @@ template <class _Tp>
 struct __is_hash_value_type_imp : false_type {};
 
 template <class _Key, class _Value>
-struct __is_hash_value_type_imp<__hash_value_type<_Key, _Value> > : true_type {}; 
+struct __is_hash_value_type_imp<__hash_value_type<_Key, _Value> > : true_type {};
 
 template <class ..._Args>
 struct __is_hash_value_type : false_type {};
diff --git a/contrib/libs/cxxsupp/libcxx/include/__locale b/contrib/libs/cxxsupp/libcxx/include/__locale
index 153aa812d4..38cb7a6f39 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__locale
+++ b/contrib/libs/cxxsupp/libcxx/include/__locale
@@ -96,7 +96,7 @@ struct __libcpp_locale_guard {
         __setlocale(__locale_all);
         free(__locale_all);
       }
-      _configthreadlocale(__status); 
+      _configthreadlocale(__status);
     }
     static const char* __setlocale(const char* __locale) {
       const char* __new_locale = setlocale(LC_ALL, __locale);
diff --git a/contrib/libs/cxxsupp/libcxx/include/__string b/contrib/libs/cxxsupp/libcxx/include/__string
index b1a209d7bf..7074a73538 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__string
+++ b/contrib/libs/cxxsupp/libcxx/include/__string
@@ -626,7 +626,7 @@ struct _LIBCPP_TEMPLATE_VIS char_traits<char8_t>
             return __libcpp_is_constant_evaluated()
                        ? _VSTD::__copy_constexpr(__s1, __s2, __n)
                        : __n == 0 ? __s1 : (char_type*)_VSTD::memcpy(__s1, __s2, __n);
-        } 
+        }
 
     static _LIBCPP_CONSTEXPR_AFTER_CXX17
     char_type*       assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT
diff --git a/contrib/libs/cxxsupp/libcxx/include/__support/ibm/xlocale.h b/contrib/libs/cxxsupp/libcxx/include/__support/ibm/xlocale.h
index 4a6b86a068..15b8386dd3 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__support/ibm/xlocale.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__support/ibm/xlocale.h
@@ -125,7 +125,7 @@ int vasprintf(char **strp, const char *fmt, va_list ap) {
     str_size = vsnprintf(*strp, str_size + 1, fmt,  ap);
   }
   return str_size;
-} 
+}
 
 #ifdef __cplusplus
 }
diff --git a/contrib/libs/cxxsupp/libcxx/include/__support/solaris/wchar.h b/contrib/libs/cxxsupp/libcxx/include/__support/solaris/wchar.h
index 9dc9ac3f00..f01fd743a2 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__support/solaris/wchar.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__support/solaris/wchar.h
@@ -26,7 +26,7 @@
 #define wctype sun_wctype
 #define _WCHAR_T 1
 #include_next "wchar.h"
-#undef iswalpha 
+#undef iswalpha
 #undef iswupper
 #undef iswlower
 #undef iswdigit
diff --git a/contrib/libs/cxxsupp/libcxx/include/__threading_support b/contrib/libs/cxxsupp/libcxx/include/__threading_support
index f07b79841e..9b0de00dfc 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__threading_support
+++ b/contrib/libs/cxxsupp/libcxx/include/__threading_support
@@ -83,7 +83,7 @@ typedef pthread_cond_t __libcpp_condvar_t;
 #ifndef _LIBCPP_NO_NATIVE_SEMAPHORES
 // Semaphore
 typedef sem_t __libcpp_semaphore_t;
-# define _LIBCPP_SEMAPHORE_MAX SEM_VALUE_MAX 
+# define _LIBCPP_SEMAPHORE_MAX SEM_VALUE_MAX
 #endif
 
 // Execute once
@@ -94,7 +94,7 @@ typedef pthread_once_t __libcpp_exec_once_flag;
 #if defined(__MVS__)
   typedef unsigned long long __libcpp_thread_id;
 #else
-  typedef pthread_t __libcpp_thread_id; 
+  typedef pthread_t __libcpp_thread_id;
 #endif
 
 // Thread
diff --git a/contrib/libs/cxxsupp/libcxx/include/__tree b/contrib/libs/cxxsupp/libcxx/include/__tree
index fd5b429ea5..f3f2e8d15f 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__tree
+++ b/contrib/libs/cxxsupp/libcxx/include/__tree
@@ -539,7 +539,7 @@ template <class _Tp>
 struct __is_tree_value_type_imp : false_type {};
 
 template <class _Key, class _Value>
-struct __is_tree_value_type_imp<__value_type<_Key, _Value> > : true_type {}; 
+struct __is_tree_value_type_imp<__value_type<_Key, _Value> > : true_type {};
 
 template <class ..._Args>
 struct __is_tree_value_type : false_type {};
@@ -1638,7 +1638,7 @@ __tree<_Tp, _Compare, _Allocator>::__assign_unique(_ForwardIterator __first, _Fo
           for (; __cache.__get() != nullptr && __first != __last; ++__first) {
               if (__node_assign_unique(*__first, __cache.__get()).second)
                   __cache.__advance();
-            } 
+            }
     }
     for (; __first != __last; ++__first)
         __insert_unique(*__first);
@@ -2251,7 +2251,7 @@ __tree<_Tp, _Compare, _Allocator>::__remove_node_pointer(__node_pointer __ptr) _
         __begin_node() = __r.__ptr_;
     --size();
     _VSTD::__tree_remove(__end_node()->__left_,
-                         static_cast<__node_base_pointer>(__ptr)); 
+                         static_cast<__node_base_pointer>(__ptr));
     return __r;
 }
 
@@ -2727,7 +2727,7 @@ __tree<_Tp, _Compare, _Allocator>::remove(const_iterator __p) _NOEXCEPT
     }
     --size();
     _VSTD::__tree_remove(__end_node()->__left_,
-                         static_cast<__node_base_pointer>(__np)); 
+                         static_cast<__node_base_pointer>(__np));
     return __node_holder(__np, _Dp(__node_alloc(), true));
 }
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/algorithm b/contrib/libs/cxxsupp/libcxx/include/algorithm
index 307c740247..3fe0c8c1c9 100644
--- a/contrib/libs/cxxsupp/libcxx/include/algorithm
+++ b/contrib/libs/cxxsupp/libcxx/include/algorithm
@@ -563,10 +563,10 @@ template<class T, class Compare>
     min(initializer_list<T> t, Compare comp);
 
 template<class T>
-    constexpr const T& clamp(const T& v, const T& lo, const T& hi);               // C++17 
+    constexpr const T& clamp(const T& v, const T& lo, const T& hi);               // C++17
 
 template<class T, class Compare>
-    constexpr const T& clamp(const T& v, const T& lo, const T& hi, Compare comp); // C++17 
+    constexpr const T& clamp(const T& v, const T& lo, const T& hi, Compare comp); // C++17
 
 template <class ForwardIterator>
     constexpr ForwardIterator        // constexpr in C++14
diff --git a/contrib/libs/cxxsupp/libcxx/include/atomic b/contrib/libs/cxxsupp/libcxx/include/atomic
index c9fec104ef..992c745961 100644
--- a/contrib/libs/cxxsupp/libcxx/include/atomic
+++ b/contrib/libs/cxxsupp/libcxx/include/atomic
@@ -23,10 +23,10 @@ namespace std
 #define __cpp_lib_atomic_lock_free_type_aliases
 #define __cpp_lib_atomic_wait
 
- // order and consistency 
+ // order and consistency
 
  enum memory_order: unspecified // enum class in C++20
- { 
+ {
     relaxed,
     consume, // load-consume
     acquire, // load-acquire
@@ -532,13 +532,13 @@ template <class T>
 #endif
 
 #ifdef _LIBCPP_HAS_NO_THREADS
-# error <atomic> is not supported on this single threaded system 
+# error <atomic> is not supported on this single threaded system
 #endif
 #ifdef _LIBCPP_HAS_NO_ATOMIC_HEADER
-# error <atomic> is not implemented 
+# error <atomic> is not implemented
 #endif
 #ifdef kill_dependency
-# error C++ standard library is incompatible with <stdatomic.h> 
+# error C++ standard library is incompatible with <stdatomic.h>
 #endif
 
 #define _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) \
@@ -613,7 +613,7 @@ static_assert((is_same<underlying_type<memory_order>::type, __memory_order_under
   "unexpected underlying type for std::memory_order");
 
 #if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) || \
-	defined(_LIBCPP_ATOMIC_ONLY_USE_BUILTINS) 
+	defined(_LIBCPP_ATOMIC_ONLY_USE_BUILTINS)
 
 // [atomics.types.generic]p1 guarantees _Tp is trivially copyable. Because
 // the default operator= in an object is not volatile, a byte-by-byte copy
@@ -696,7 +696,7 @@ void __cxx_atomic_signal_fence(memory_order __order) {
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 void __cxx_atomic_store(volatile __cxx_atomic_base_impl<_Tp>* __a,  _Tp __val,
-                        memory_order __order) { 
+                        memory_order __order) {
   __atomic_store(&__a->__a_value, &__val,
                  __to_gcc_order(__order));
 }
@@ -704,7 +704,7 @@ void __cxx_atomic_store(volatile __cxx_atomic_base_impl<_Tp>* __a,  _Tp __val,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp>* __a,  _Tp __val,
-                        memory_order __order) { 
+                        memory_order __order) {
   __atomic_store(&__a->__a_value, &__val,
                  __to_gcc_order(__order));
 }
@@ -712,7 +712,7 @@ void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp>* __a,  _Tp __val,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_load(const volatile __cxx_atomic_base_impl<_Tp>* __a,
-                      memory_order __order) { 
+                      memory_order __order) {
   _Tp __ret;
   __atomic_load(&__a->__a_value, &__ret,
                 __to_gcc_order(__order));
@@ -731,7 +731,7 @@ _Tp __cxx_atomic_load(const __cxx_atomic_base_impl<_Tp>* __a, memory_order __ord
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_exchange(volatile __cxx_atomic_base_impl<_Tp>* __a,
-                          _Tp __value, memory_order __order) { 
+                          _Tp __value, memory_order __order) {
   _Tp __ret;
   __atomic_exchange(&__a->__a_value, &__value, &__ret,
                     __to_gcc_order(__order));
@@ -741,7 +741,7 @@ _Tp __cxx_atomic_exchange(volatile __cxx_atomic_base_impl<_Tp>* __a,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp>* __a, _Tp __value,
-                          memory_order __order) { 
+                          memory_order __order) {
   _Tp __ret;
   __atomic_exchange(&__a->__a_value, &__value, &__ret,
                     __to_gcc_order(__order));
@@ -808,7 +808,7 @@ struct __skip_amt<_Tp[n]> { };
 template <typename _Tp, typename _Td>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_base_impl<_Tp>* __a,
-                           _Td __delta, memory_order __order) { 
+                           _Td __delta, memory_order __order) {
   return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
                             __to_gcc_order(__order));
 }
@@ -816,7 +816,7 @@ _Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_base_impl<_Tp>* __a,
 template <typename _Tp, typename _Td>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
-                           memory_order __order) { 
+                           memory_order __order) {
   return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
                             __to_gcc_order(__order));
 }
@@ -824,7 +824,7 @@ _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
 template <typename _Tp, typename _Td>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_base_impl<_Tp>* __a,
-                           _Td __delta, memory_order __order) { 
+                           _Td __delta, memory_order __order) {
   return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
                             __to_gcc_order(__order));
 }
@@ -832,7 +832,7 @@ _Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_base_impl<_Tp>* __a,
 template <typename _Tp, typename _Td>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
-                           memory_order __order) { 
+                           memory_order __order) {
   return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
                             __to_gcc_order(__order));
 }
@@ -840,7 +840,7 @@ _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_base_impl<_Tp>* __a,
-                           _Tp __pattern, memory_order __order) { 
+                           _Tp __pattern, memory_order __order) {
   return __atomic_fetch_and(&__a->__a_value, __pattern,
                             __to_gcc_order(__order));
 }
@@ -848,7 +848,7 @@ _Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_base_impl<_Tp>* __a,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp>* __a,
-                           _Tp __pattern, memory_order __order) { 
+                           _Tp __pattern, memory_order __order) {
   return __atomic_fetch_and(&__a->__a_value, __pattern,
                             __to_gcc_order(__order));
 }
@@ -856,7 +856,7 @@ _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp>* __a,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_base_impl<_Tp>* __a,
-                          _Tp __pattern, memory_order __order) { 
+                          _Tp __pattern, memory_order __order) {
   return __atomic_fetch_or(&__a->__a_value, __pattern,
                            __to_gcc_order(__order));
 }
@@ -864,7 +864,7 @@ _Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_base_impl<_Tp>* __a,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern,
-                          memory_order __order) { 
+                          memory_order __order) {
   return __atomic_fetch_or(&__a->__a_value, __pattern,
                            __to_gcc_order(__order));
 }
@@ -872,7 +872,7 @@ _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_base_impl<_Tp>* __a,
-                           _Tp __pattern, memory_order __order) { 
+                           _Tp __pattern, memory_order __order) {
   return __atomic_fetch_xor(&__a->__a_value, __pattern,
                             __to_gcc_order(__order));
 }
@@ -880,7 +880,7 @@ _Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_base_impl<_Tp>* __a,
 template <typename _Tp>
 _LIBCPP_INLINE_VISIBILITY
 _Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern,
-                           memory_order __order) { 
+                           memory_order __order) {
   return __atomic_fetch_xor(&__a->__a_value, __pattern,
                             __to_gcc_order(__order));
 }
@@ -928,7 +928,7 @@ void __cxx_atomic_signal_fence(memory_order __order) _NOEXCEPT {
 #pragma warning ( pop )
 #endif
 
-template<class _Tp> 
+template<class _Tp>
 _LIBCPP_INLINE_VISIBILITY
 void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val) _NOEXCEPT {
     __c11_atomic_init(&__a->__a_value, __val);
diff --git a/contrib/libs/cxxsupp/libcxx/include/barrier b/contrib/libs/cxxsupp/libcxx/include/barrier
index eda9433a4b..c40a1e43f3 100644
--- a/contrib/libs/cxxsupp/libcxx/include/barrier
+++ b/contrib/libs/cxxsupp/libcxx/include/barrier
@@ -308,11 +308,11 @@ public:
     {
         __b.wait(_VSTD::move(__phase));
     }
-	_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+	_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
     void arrive_and_wait()
     {
         wait(arrive());
-	} 
+	}
     _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
     void arrive_and_drop()
     {
diff --git a/contrib/libs/cxxsupp/libcxx/include/bit b/contrib/libs/cxxsupp/libcxx/include/bit
index 5da3eaf788..eab67977a1 100644
--- a/contrib/libs/cxxsupp/libcxx/include/bit
+++ b/contrib/libs/cxxsupp/libcxx/include/bit
@@ -219,7 +219,7 @@ _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
 bool __has_single_bit(_Tp __t) _NOEXCEPT
 {
     static_assert(__libcpp_is_unsigned_integer<_Tp>::value, "__has_single_bit requires an unsigned integer type");
-    return __t != 0 && (((__t & (__t - 1)) == 0)); 
+    return __t != 0 && (((__t & (__t - 1)) == 0));
 }
 
 #if _LIBCPP_STD_VER > 17
@@ -261,7 +261,7 @@ _LIBCPP_INLINE_VISIBILITY constexpr
 enable_if_t<__libcpp_is_unsigned_integer<_Tp>::value, int>
 countr_zero(_Tp __t) noexcept
 {
-    return __countr_zero(__t); 
+    return __countr_zero(__t);
 }
 
 template<class _Tp>
diff --git a/contrib/libs/cxxsupp/libcxx/include/chrono b/contrib/libs/cxxsupp/libcxx/include/chrono
index 45c7a495a8..db186a4fba 100644
--- a/contrib/libs/cxxsupp/libcxx/include/chrono
+++ b/contrib/libs/cxxsupp/libcxx/include/chrono
@@ -1972,7 +1972,7 @@ bool operator!=(const weekday_last& __lhs, const weekday_last& __rhs) noexcept
 inline constexpr
 weekday_indexed weekday::operator[](unsigned __index) const noexcept { return weekday_indexed{*this, __index}; }
 
-inline constexpr 
+inline constexpr
 weekday_last    weekday::operator[](last_spec) const noexcept { return weekday_last{*this}; }
 
 
@@ -2283,7 +2283,7 @@ public:
      year_month_day() = default;
      inline constexpr year_month_day(
             const chrono::year& __yval, const chrono::month& __mval, const chrono::day& __dval) noexcept
-            : __y{__yval}, __m{__mval}, __d{__dval} {} 
+            : __y{__yval}, __m{__mval}, __d{__dval} {}
             constexpr year_month_day(const year_month_day_last& __ymdl) noexcept;
      inline constexpr year_month_day(const sys_days& __sysd) noexcept
             : year_month_day(__from_days(__sysd.time_since_epoch())) {}
@@ -2538,7 +2538,7 @@ inline constexpr year_month_day_last& year_month_day_last::operator+=(const year
 inline constexpr year_month_day_last& year_month_day_last::operator-=(const years& __dy)  noexcept { *this = *this - __dy; return *this; }
 
 inline constexpr year_month_day::year_month_day(const year_month_day_last& __ymdl) noexcept
-    : __y{__ymdl.year()}, __m{__ymdl.month()}, __d{__ymdl.day()} {} 
+    : __y{__ymdl.year()}, __m{__ymdl.month()}, __d{__ymdl.day()} {}
 
 inline constexpr bool year_month_day::ok() const noexcept
 {
@@ -2594,7 +2594,7 @@ year_month_weekday year_month_weekday::__from_days(days __d) noexcept
     const sys_days      __sysd{__d};
     const chrono::weekday __wd = chrono::weekday(__sysd);
     const year_month_day __ymd = year_month_day(__sysd);
-    return year_month_weekday{__ymd.year(), __ymd.month(), 
+    return year_month_weekday{__ymd.year(), __ymd.month(),
                               __wd[(static_cast<unsigned>(__ymd.day())-1)/7+1]};
 }
 
@@ -2686,9 +2686,9 @@ public:
     inline constexpr operator                 sys_days() const noexcept { return   sys_days{__to_days()}; }
     inline explicit constexpr operator      local_days() const noexcept { return local_days{__to_days()}; }
     inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok() && __wdl.ok(); }
- 
+
     constexpr days __to_days() const noexcept;
- 
+
 };
 
 inline constexpr
@@ -2726,7 +2726,7 @@ year_month_weekday_last operator/(const month_weekday_last& __lhs, const year& _
 
 inline constexpr
 year_month_weekday_last operator/(const month_weekday_last& __lhs, int __rhs) noexcept
-{ return year(__rhs) / __lhs; } 
+{ return year(__rhs) / __lhs; }
 
 
 inline constexpr
@@ -2916,7 +2916,7 @@ inline namespace literals
     {
         return chrono::day(static_cast<unsigned>(__d));
     }
- 
+
     constexpr chrono::year operator ""y(unsigned long long __y) noexcept
     {
         return chrono::year(static_cast<int>(__y));
diff --git a/contrib/libs/cxxsupp/libcxx/include/cmath b/contrib/libs/cxxsupp/libcxx/include/cmath
index a2a7dde190..e14905c57c 100644
--- a/contrib/libs/cxxsupp/libcxx/include/cmath
+++ b/contrib/libs/cxxsupp/libcxx/include/cmath
@@ -622,9 +622,9 @@ _Fp __lerp(_Fp __a, _Fp __b, _Fp __t) noexcept {
     if (__t == 1) return __b;
     const _Fp __x = __a + __t * (__b - __a);
     if ((__t > 1) == (__b > __a))
-    	return __b < __x ? __x : __b; 
+    	return __b < __x ? __x : __b;
     else
-    	return __x < __b ? __x : __b; 
+    	return __x < __b ? __x : __b;
 }
 
 constexpr float
diff --git a/contrib/libs/cxxsupp/libcxx/include/complex b/contrib/libs/cxxsupp/libcxx/include/complex
index 01c072c800..e4c59193bc 100644
--- a/contrib/libs/cxxsupp/libcxx/include/complex
+++ b/contrib/libs/cxxsupp/libcxx/include/complex
@@ -1447,10 +1447,10 @@ operator<<(basic_ostream<_CharT, _Traits>& __os, const complex<_Tp>& __x)
 }
 #endif // !_LIBCPP_HAS_NO_LOCALIZATION
 
-#if _LIBCPP_STD_VER > 11 
+#if _LIBCPP_STD_VER > 11
 // Literal suffix for complex number literals [complex.literals]
 inline namespace literals
-{ 
+{
   inline namespace complex_literals
   {
     constexpr complex<long double> operator""il(long double __im)
diff --git a/contrib/libs/cxxsupp/libcxx/include/ctime b/contrib/libs/cxxsupp/libcxx/include/ctime
index 6034bf2185..816618f6a3 100644
--- a/contrib/libs/cxxsupp/libcxx/include/ctime
+++ b/contrib/libs/cxxsupp/libcxx/include/ctime
@@ -18,7 +18,7 @@ Macros:
     NULL
     CLOCKS_PER_SEC
     TIME_UTC // C++17
- 
+
 namespace std
 {
 
@@ -29,7 +29,7 @@ Types:
     time_t
     tm
     timespec // C++17
- 
+
 clock_t clock();
 double difftime(time_t time1, time_t time0);
 time_t mktime(tm* timeptr);
diff --git a/contrib/libs/cxxsupp/libcxx/include/deque b/contrib/libs/cxxsupp/libcxx/include/deque
index 8108abecd9..67cd6654f1 100644
--- a/contrib/libs/cxxsupp/libcxx/include/deque
+++ b/contrib/libs/cxxsupp/libcxx/include/deque
@@ -2889,7 +2889,7 @@ deque<_Tp, _Allocator>::erase(const_iterator __f, const_iterator __l)
                 __alloc_traits::destroy(__a, _VSTD::addressof(*__b));
             __base::size() -= __n;
             __base::__start_ += __n;
-            while (__maybe_remove_front_spare()) { 
+            while (__maybe_remove_front_spare()) {
             }
         }
         else
@@ -2898,7 +2898,7 @@ deque<_Tp, _Allocator>::erase(const_iterator __f, const_iterator __l)
             for (iterator __e = __base::end(); __i != __e; ++__i)
                 __alloc_traits::destroy(__a, _VSTD::addressof(*__i));
             __base::size() -= __n;
-            while (__maybe_remove_back_spare()) { 
+            while (__maybe_remove_back_spare()) {
             }
         }
     }
@@ -2919,7 +2919,7 @@ deque<_Tp, _Allocator>::__erase_to_end(const_iterator __f)
         for (iterator __p = __b + __pos; __p != __e; ++__p)
             __alloc_traits::destroy(__a, _VSTD::addressof(*__p));
         __base::size() -= __n;
-        while (__maybe_remove_back_spare()) { 
+        while (__maybe_remove_back_spare()) {
         }
     }
 }
diff --git a/contrib/libs/cxxsupp/libcxx/include/experimental/functional b/contrib/libs/cxxsupp/libcxx/include/experimental/functional
index 5d28714566..e3220e16ca 100644
--- a/contrib/libs/cxxsupp/libcxx/include/experimental/functional
+++ b/contrib/libs/cxxsupp/libcxx/include/experimental/functional
@@ -113,7 +113,7 @@ template<class _ForwardIterator, class _BinaryPredicate = equal_to<>>
 class _LIBCPP_TEMPLATE_VIS default_searcher {
 public:
     _LIBCPP_INLINE_VISIBILITY
-    default_searcher(_ForwardIterator __f, _ForwardIterator __l, 
+    default_searcher(_ForwardIterator __f, _ForwardIterator __l,
                        _BinaryPredicate __p = _BinaryPredicate())
         : __first_(__f), __last_(__l), __pred_(__p) {}
 
@@ -152,12 +152,12 @@ public: // TODO private:
 
     const _Value __default_value_;
     std::unordered_map<_Key, _Value, _Hash, _BinaryPredicate> __table;
- 
+
 public:
     _LIBCPP_INLINE_VISIBILITY
     _BMSkipTable(size_t __sz, _Value __default, _Hash __hf, _BinaryPredicate __pred)
         : __default_value_(__default), __table(__sz, __hf, __pred) {}
- 
+
     _LIBCPP_INLINE_VISIBILITY
     void insert(const key_type &__key, value_type __val)
     {
@@ -172,7 +172,7 @@ public:
     }
 };
 
- 
+
 //  Special case small numeric values; use an array
 template<class _Key, typename _Value, class _Hash, class _BinaryPredicate>
 class _BMSkipTable<_Key, _Value, _Hash, _BinaryPredicate, true> {
@@ -190,7 +190,7 @@ public:
     {
         std::fill_n(__table.begin(), __table.size(), __default);
     }
- 
+
     _LIBCPP_INLINE_VISIBILITY
     void insert(key_type __key, value_type __val)
     {
@@ -205,8 +205,8 @@ public:
 };
 
 
-template <class _RandomAccessIterator1, 
-          class _Hash = hash<typename iterator_traits<_RandomAccessIterator1>::value_type>, 
+template <class _RandomAccessIterator1,
+          class _Hash = hash<typename iterator_traits<_RandomAccessIterator1>::value_type>,
           class _BinaryPredicate = equal_to<>>
 class _LIBCPP_TEMPLATE_VIS boyer_moore_searcher {
 private:
@@ -218,9 +218,9 @@ private:
                     is_same<_Hash, hash<value_type>>::value &&
                     is_same<_BinaryPredicate, equal_to<>>::value
             > skip_table_type;
- 
+
 public:
-    boyer_moore_searcher(_RandomAccessIterator1 __f, _RandomAccessIterator1 __l, 
+    boyer_moore_searcher(_RandomAccessIterator1 __f, _RandomAccessIterator1 __l,
                 _Hash __hf = _Hash(), _BinaryPredicate __pred = _BinaryPredicate())
             : __first_(__f), __last_(__l), __pred_(__pred),
               __pattern_length_(_VSTD::distance(__first_, __last_)),
@@ -233,13 +233,13 @@ public:
 
         this->__build_suffix_table ( __first_, __last_, __pred_ );
         }
- 
+
     template <typename _RandomAccessIterator2>
     pair<_RandomAccessIterator2, _RandomAccessIterator2>
     operator ()(_RandomAccessIterator2 __f, _RandomAccessIterator2 __l) const
     {
         static_assert ( std::is_same<
-                typename std::__uncvref<typename std::iterator_traits<_RandomAccessIterator1>::value_type>::type, 
+                typename std::__uncvref<typename std::iterator_traits<_RandomAccessIterator1>::value_type>::type,
                 typename std::__uncvref<typename std::iterator_traits<_RandomAccessIterator2>::value_type>::type
                     >::value,
                 "Corpus and Pattern iterators must point to the same type" );
@@ -251,10 +251,10 @@ public:
         if ( __pattern_length_ > _VSTD::distance(__f, __l))
             return make_pair(__l, __l);
 
-    //  Do the search 
+    //  Do the search
         return this->__search(__f, __l);
     }
- 
+
 public: // TODO private:
     _RandomAccessIterator1               __first_;
     _RandomAccessIterator1               __last_;
@@ -271,7 +271,7 @@ public: // TODO private:
         const _RandomAccessIterator2 __last = __l - __pattern_length_;
         const skip_table_type &         __skip   = *__skip_.get();
         const vector<difference_type> & __suffix = *__suffix_.get();
- 
+
         while (__cur <= __last)
         {
 
@@ -283,7 +283,7 @@ public: // TODO private:
                 if ( __j == 0 )
                     return make_pair(__cur, __cur + __pattern_length_);
                 }
- 
+
         //  Since we didn't match, figure out how far to skip forward
             difference_type __k = __skip[__cur [ __j - 1 ]];
             difference_type __m = __j - __k - 1;
@@ -292,7 +292,7 @@ public: // TODO private:
             else
                 __cur += __suffix[ __j ];
         }
- 
+
         return make_pair(__l, __l);     // We didn't find anything
     }
 
@@ -301,21 +301,21 @@ public: // TODO private:
     void __compute_bm_prefix ( _Iterator __f, _Iterator __l, _BinaryPredicate __pred, _Container &__prefix )
     {
         const size_t __count = _VSTD::distance(__f, __l);
- 
+
         __prefix[0] = 0;
         size_t __k = 0;
         for ( size_t __i = 1; __i < __count; ++__i )
         {
             while ( __k > 0 && !__pred ( __f[__k], __f[__i] ))
                 __k = __prefix [ __k - 1 ];
- 
+
             if ( __pred ( __f[__k], __f[__i] ))
                 __k++;
             __prefix [ __i ] = __k;
         }
     }
 
-    void __build_suffix_table(_RandomAccessIterator1 __f, _RandomAccessIterator1 __l, 
+    void __build_suffix_table(_RandomAccessIterator1 __f, _RandomAccessIterator1 __l,
                                                     _BinaryPredicate __pred)
     {
         const size_t __count = _VSTD::distance(__f, __l);
@@ -323,19 +323,19 @@ public: // TODO private:
         if (__count > 0)
         {
             vector<value_type> __scratch(__count);
- 
+
             __compute_bm_prefix(__f, __l, __pred, __scratch);
             for ( size_t __i = 0; __i <= __count; __i++ )
                 __suffix[__i] = __count - __scratch[__count-1];
- 
+
             typedef reverse_iterator<_RandomAccessIterator1> _RevIter;
             __compute_bm_prefix(_RevIter(__l), _RevIter(__f), __pred, __scratch);
- 
+
             for ( size_t __i = 0; __i < __count; __i++ )
             {
                 const size_t     __j = __count - __scratch[__i];
                 const difference_type __k = __i     - __scratch[__i] + 1;
- 
+
                 if (__suffix[__j] > __k)
                     __suffix[__j] = __k;
             }
@@ -344,20 +344,20 @@ public: // TODO private:
 
 };
 
-template<class _RandomAccessIterator, 
-         class _Hash = hash<typename iterator_traits<_RandomAccessIterator>::value_type>, 
+template<class _RandomAccessIterator,
+         class _Hash = hash<typename iterator_traits<_RandomAccessIterator>::value_type>,
          class _BinaryPredicate = equal_to<>>
 _LIBCPP_INLINE_VISIBILITY
 boyer_moore_searcher<_RandomAccessIterator, _Hash, _BinaryPredicate>
-make_boyer_moore_searcher( _RandomAccessIterator __f, _RandomAccessIterator __l, 
+make_boyer_moore_searcher( _RandomAccessIterator __f, _RandomAccessIterator __l,
                     _Hash __hf = _Hash(), _BinaryPredicate __p = _BinaryPredicate ())
 {
     return boyer_moore_searcher<_RandomAccessIterator, _Hash, _BinaryPredicate>(__f, __l, __hf, __p);
 }
 
 // boyer-moore-horspool
-template <class _RandomAccessIterator1, 
-          class _Hash = hash<typename iterator_traits<_RandomAccessIterator1>::value_type>, 
+template <class _RandomAccessIterator1,
+          class _Hash = hash<typename iterator_traits<_RandomAccessIterator1>::value_type>,
           class _BinaryPredicate = equal_to<>>
 class _LIBCPP_TEMPLATE_VIS boyer_moore_horspool_searcher {
 private:
@@ -371,7 +371,7 @@ private:
             > skip_table_type;
 
 public:
-    boyer_moore_horspool_searcher(_RandomAccessIterator1 __f, _RandomAccessIterator1 __l, 
+    boyer_moore_horspool_searcher(_RandomAccessIterator1 __f, _RandomAccessIterator1 __l,
                 _Hash __hf = _Hash(), _BinaryPredicate __pred = _BinaryPredicate())
             : __first_(__f), __last_(__l), __pred_(__pred),
               __pattern_length_(_VSTD::distance(__first_, __last_)),
@@ -385,13 +385,13 @@ public:
                     __skip_->insert(*__f, __pattern_length_ - 1 - __i);
             }
         }
- 
+
     template <typename _RandomAccessIterator2>
     pair<_RandomAccessIterator2, _RandomAccessIterator2>
     operator ()(_RandomAccessIterator2 __f, _RandomAccessIterator2 __l) const
     {
         static_assert ( std::is_same<
-                typename std::__uncvref<typename std::iterator_traits<_RandomAccessIterator1>::value_type>::type, 
+                typename std::__uncvref<typename std::iterator_traits<_RandomAccessIterator1>::value_type>::type,
                 typename std::__uncvref<typename std::iterator_traits<_RandomAccessIterator2>::value_type>::type
                     >::value,
                 "Corpus and Pattern iterators must point to the same type" );
@@ -403,10 +403,10 @@ public:
         if ( __pattern_length_ > _VSTD::distance(__f, __l))
             return make_pair(__l, __l);
 
-    //  Do the search 
+    //  Do the search
         return this->__search(__f, __l);
     }
- 
+
 private:
     _RandomAccessIterator1      __first_;
     _RandomAccessIterator1      __last_;
@@ -434,17 +434,17 @@ private:
             }
             __cur += __skip[__cur[__pattern_length_-1]];
         }
- 
+
         return make_pair(__l, __l);
     }
 };
 
-template<class _RandomAccessIterator, 
-         class _Hash = hash<typename iterator_traits<_RandomAccessIterator>::value_type>, 
+template<class _RandomAccessIterator,
+         class _Hash = hash<typename iterator_traits<_RandomAccessIterator>::value_type>,
          class _BinaryPredicate = equal_to<>>
 _LIBCPP_INLINE_VISIBILITY
 boyer_moore_horspool_searcher<_RandomAccessIterator, _Hash, _BinaryPredicate>
-make_boyer_moore_horspool_searcher( _RandomAccessIterator __f, _RandomAccessIterator __l, 
+make_boyer_moore_horspool_searcher( _RandomAccessIterator __f, _RandomAccessIterator __l,
                     _Hash __hf = _Hash(), _BinaryPredicate __p = _BinaryPredicate ())
 {
     return boyer_moore_horspool_searcher<_RandomAccessIterator, _Hash, _BinaryPredicate>(__f, __l, __hf, __p);
diff --git a/contrib/libs/cxxsupp/libcxx/include/experimental/iterator b/contrib/libs/cxxsupp/libcxx/include/experimental/iterator
index 43f1bd8d7a..09ea2cbcc7 100644
--- a/contrib/libs/cxxsupp/libcxx/include/experimental/iterator
+++ b/contrib/libs/cxxsupp/libcxx/include/experimental/iterator
@@ -26,19 +26,19 @@ namespace std {
          typedef void                         difference_type;
          typedef void                         pointer;
          typedef void                         reference;
- 
+
          ostream_joiner(ostream_type& s, const DelimT& delimiter);
          ostream_joiner(ostream_type& s, DelimT&& delimiter);
 
-         template<typename T> 
+         template<typename T>
          ostream_joiner& operator=(const T& value);
 
          ostream_joiner& operator*() noexcept;
          ostream_joiner& operator++() noexcept;
          ostream_joiner& operator++(int) noexcept;
    private:
-      ostream_type* out_stream;   // exposition only 
-      DelimT delim;               // exposition only 
+      ostream_type* out_stream;   // exposition only
+      DelimT delim;               // exposition only
       bool first_element;         // exposition only
    };
 
@@ -78,11 +78,11 @@ public:
 
     ostream_joiner(ostream_type& __os, _Delim&& __d)
         : __output_iter(_VSTD::addressof(__os)), __delim(_VSTD::move(__d)), __first(true) {}
- 
+
     ostream_joiner(ostream_type& __os, const _Delim& __d)
         : __output_iter(_VSTD::addressof(__os)), __delim(__d), __first(true) {}
 
- 
+
     template<typename _Tp>
     ostream_joiner& operator=(const _Tp& __v)
     {
diff --git a/contrib/libs/cxxsupp/libcxx/include/experimental/type_traits b/contrib/libs/cxxsupp/libcxx/include/experimental/type_traits
index a5e554b34a..ea1335f96a 100644
--- a/contrib/libs/cxxsupp/libcxx/include/experimental/type_traits
+++ b/contrib/libs/cxxsupp/libcxx/include/experimental/type_traits
@@ -60,7 +60,7 @@ inline namespace fundamentals_v1 {
      using is_detected_convertible = is_convertible<detected_t<Op, Args...>, To>;
   template <class To, template<class...> class Op, class... Args>
      constexpr bool is_detected_convertible_v
-       = is_detected_convertible<To, Op, Args...>::value; 
+       = is_detected_convertible<To, Op, Args...>::value;
 
 } // namespace fundamentals_v1
 } // namespace experimental
@@ -106,9 +106,9 @@ using raw_invocation_type_t = typename raw_invocation_type<_Tp>::type;
 template <class...> using void_t = void;
 
 struct nonesuch : private __nat { // make nonesuch "not an aggregate"
-  ~nonesuch() = delete; 
-  nonesuch      (nonesuch const&) = delete; 
-  void operator=(nonesuch const&) = delete; 
+  ~nonesuch() = delete;
+  nonesuch      (nonesuch const&) = delete;
+  void operator=(nonesuch const&) = delete;
   };
 
 template <class _Default, class _AlwaysVoid, template <class...> class _Op, class... _Args>
@@ -123,7 +123,7 @@ struct _DETECTOR<_Default, void_t<_Op<_Args...>>, _Op, _Args...> {
    using type = _Op<_Args...>;
    };
 
- 
+
 template <template<class...> class _Op, class... _Args>
   using is_detected = typename _DETECTOR<nonesuch, void, _Op, _Args...>::value_t;
 template <template<class...> class _Op, class... _Args>
@@ -144,7 +144,7 @@ template <class Expected, template<class...> class _Op, class... _Args>
 template <class To, template<class...> class _Op, class... _Args>
   using is_detected_convertible = is_convertible<detected_t<_Op, _Args...>, To>;
 template <class To, template<class...> class _Op, class... _Args>
-  _LIBCPP_CONSTEXPR bool is_detected_convertible_v = is_detected_convertible<To, _Op, _Args...>::value; 
+  _LIBCPP_CONSTEXPR bool is_detected_convertible_v = is_detected_convertible<To, _Op, _Args...>::value;
 
 
 _LIBCPP_END_NAMESPACE_LFTS
diff --git a/contrib/libs/cxxsupp/libcxx/include/ext/hash_map b/contrib/libs/cxxsupp/libcxx/include/ext/hash_map
index 067f4a1ada..60e32b09e3 100644
--- a/contrib/libs/cxxsupp/libcxx/include/ext/hash_map
+++ b/contrib/libs/cxxsupp/libcxx/include/ext/hash_map
@@ -46,10 +46,10 @@ public:
     template <class InputIterator>
     hash_map(InputIterator f, InputIterator l);
     template <class InputIterator>
-    hash_map(InputIterator f, InputIterator l, 
+    hash_map(InputIterator f, InputIterator l,
                 size_type n, const hasher& hf = hasher(),
-                const key_equal& eql = key_equal(), 
-                const allocator_type& a = allocator_type()); 
+                const key_equal& eql = key_equal(),
+                const allocator_type& a = allocator_type());
     hash_map(const hash_map&);
     ~hash_map();
     hash_map& operator=(const hash_map&);
@@ -395,10 +395,10 @@ public:
         return __t;
     }
 
-    friend _LIBCPP_INLINE_VISIBILITY 
+    friend _LIBCPP_INLINE_VISIBILITY
     bool operator==(const __hash_map_iterator& __x, const __hash_map_iterator& __y)
         {return __x.__i_ == __y.__i_;}
-    friend _LIBCPP_INLINE_VISIBILITY 
+    friend _LIBCPP_INLINE_VISIBILITY
     bool operator!=(const __hash_map_iterator& __x, const __hash_map_iterator& __y)
         {return __x.__i_ != __y.__i_;}
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/ext/hash_set b/contrib/libs/cxxsupp/libcxx/include/ext/hash_set
index d1fecdd111..af3f9c5de0 100644
--- a/contrib/libs/cxxsupp/libcxx/include/ext/hash_set
+++ b/contrib/libs/cxxsupp/libcxx/include/ext/hash_set
@@ -607,7 +607,7 @@ template <class _InputIterator>
 inline
 void
 hash_multiset<_Value, _Hash, _Pred, _Alloc>::insert(_InputIterator __first,
-                                                    _InputIterator __last) 
+                                                    _InputIterator __last)
 {
     for (; __first != __last; ++__first)
         __table_.__insert_multi(*__first);
diff --git a/contrib/libs/cxxsupp/libcxx/include/forward_list b/contrib/libs/cxxsupp/libcxx/include/forward_list
index 4273c2750b..3454a784a1 100644
--- a/contrib/libs/cxxsupp/libcxx/include/forward_list
+++ b/contrib/libs/cxxsupp/libcxx/include/forward_list
@@ -604,7 +604,7 @@ __forward_list_base<_Tp, _Alloc>::swap(__forward_list_base& __x)
                     __is_nothrow_swappable<__node_allocator>::value)
 #endif
 {
-    _VSTD::__swap_allocator(__alloc(), __x.__alloc(), 
+    _VSTD::__swap_allocator(__alloc(), __x.__alloc(),
             integral_constant<bool, __node_traits::propagate_on_container_swap::value>());
     using _VSTD::swap;
     swap(__before_begin()->__next_, __x.__before_begin()->__next_);
diff --git a/contrib/libs/cxxsupp/libcxx/include/future b/contrib/libs/cxxsupp/libcxx/include/future
index 4761a1747d..89acdba62b 100644
--- a/contrib/libs/cxxsupp/libcxx/include/future
+++ b/contrib/libs/cxxsupp/libcxx/include/future
@@ -628,10 +628,10 @@ protected:
 public:
 
     template <class _Arg>
-    void set_value(_Arg&& __arg); 
+    void set_value(_Arg&& __arg);
 
     template <class _Arg>
-    void set_value_at_thread_exit(_Arg&& __arg); 
+    void set_value_at_thread_exit(_Arg&& __arg);
 
     _Rp move();
     typename add_lvalue_reference<_Rp>::type copy();
@@ -1887,7 +1887,7 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename __uncvref<_Fp>::type, 
+                      typename __uncvref<_Fp>::type,
                       packaged_task
                       >::value
                   >::type
@@ -1898,7 +1898,7 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename __uncvref<_Fp>::type, 
+                      typename __uncvref<_Fp>::type,
                       packaged_task
                       >::value
                   >::type
@@ -2016,7 +2016,7 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename __uncvref<_Fp>::type, 
+                      typename __uncvref<_Fp>::type,
                       packaged_task
                       >::value
                   >::type
@@ -2027,11 +2027,11 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename __uncvref<_Fp>::type, 
+                      typename __uncvref<_Fp>::type,
                       packaged_task
                       >::value
                   >::type
-              > 
+              >
         _LIBCPP_INLINE_VISIBILITY
         packaged_task(allocator_arg_t, const _Allocator& __a, _Fp&& __f)
              : __f_(allocator_arg, __a, _VSTD::forward<_Fp>(__f)),
diff --git a/contrib/libs/cxxsupp/libcxx/include/inttypes.h b/contrib/libs/cxxsupp/libcxx/include/inttypes.h
index 9b6e8eb4f1..6f8021263e 100644
--- a/contrib/libs/cxxsupp/libcxx/include/inttypes.h
+++ b/contrib/libs/cxxsupp/libcxx/include/inttypes.h
@@ -248,7 +248,7 @@ uintmax_t wcstoumax(const wchar_t* restrict nptr, wchar_t** restrict endptr, int
 #   define __STDC_FORMAT_MACROS
 #endif
 
-#ifdef _LIBCPP_COMPILER_MSVC 
+#ifdef _LIBCPP_COMPILER_MSVC
 #include _LIBCPP_UCRT_INCLUDE(inttypes.h)
 #else
 #include_next <inttypes.h>
diff --git a/contrib/libs/cxxsupp/libcxx/include/ios b/contrib/libs/cxxsupp/libcxx/include/ios
index 555d34f4fe..c9230d6a94 100644
--- a/contrib/libs/cxxsupp/libcxx/include/ios
+++ b/contrib/libs/cxxsupp/libcxx/include/ios
@@ -202,8 +202,8 @@ enum class io_errc
 };
 
 concept_map ErrorCodeEnum<io_errc> { };
-error_code make_error_code(io_errc e) noexcept; 
-error_condition make_error_condition(io_errc e) noexcept; 
+error_code make_error_code(io_errc e) noexcept;
+error_condition make_error_condition(io_errc e) noexcept;
 storage-class-specifier const error_category& iostream_category() noexcept;
 
 }  // std
@@ -635,45 +635,45 @@ public:
     virtual ~basic_ios();
 
     // 27.5.4.2 Members:
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     basic_ostream<char_type, traits_type>* tie() const;
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr);
 
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     basic_streambuf<char_type, traits_type>* rdbuf() const;
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb);
 
     basic_ios& copyfmt(const basic_ios& __rhs);
 
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     char_type fill() const;
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     char_type fill(char_type __ch);
 
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     locale imbue(const locale& __loc);
 
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     char narrow(char_type __c, char __dfault) const;
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     char_type widen(char __c) const;
 
 protected:
     _LIBCPP_INLINE_VISIBILITY
     basic_ios() {// purposefully does no initialization
                 }
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     void init(basic_streambuf<char_type, traits_type>* __sb);
 
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     void move(basic_ios& __rhs);
     _LIBCPP_INLINE_VISIBILITY
     void move(basic_ios&& __rhs) {move(__rhs);}
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     void swap(basic_ios& __rhs) _NOEXCEPT;
-    _LIBCPP_INLINE_VISIBILITY 
+    _LIBCPP_INLINE_VISIBILITY
     void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);
 private:
     basic_ostream<char_type, traits_type>* __tie_;
diff --git a/contrib/libs/cxxsupp/libcxx/include/istream b/contrib/libs/cxxsupp/libcxx/include/istream
index bf8c066dc6..6fb296f820 100644
--- a/contrib/libs/cxxsupp/libcxx/include/istream
+++ b/contrib/libs/cxxsupp/libcxx/include/istream
@@ -359,16 +359,16 @@ __input_arithmetic(basic_istream<_CharT, _Traits>& __is, _Tp& __n) {
     if (__s)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             typedef istreambuf_iterator<_CharT, _Traits> _Ip;
             typedef num_get<_CharT, _Ip> _Fp;
             use_facet<_Fp>(__is.getloc()).get(_Ip(__is), _Ip(), __is, __state, __n);
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
@@ -468,8 +468,8 @@ __input_arithmetic_with_numeric_limits(basic_istream<_CharT, _Traits>& __is, _Tp
     if (__s)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             typedef istreambuf_iterator<_CharT, _Traits> _Ip;
             typedef num_get<_CharT, _Ip> _Fp;
@@ -488,18 +488,18 @@ __input_arithmetic_with_numeric_limits(basic_istream<_CharT, _Traits>& __is, _Tp
             else
             {
                 __n = static_cast<_Tp>(__temp);
-            } 
-#ifndef _LIBCPP_NO_EXCEPTIONS 
+            }
+#ifndef _LIBCPP_NO_EXCEPTIONS
         }
-        catch (...) 
-        { 
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         __is.setstate(__state);
     }
@@ -526,9 +526,9 @@ basic_istream<_CharT, _Traits>&
 __input_c_string(basic_istream<_CharT, _Traits>& __is, _CharT* __p, size_t __n)
 {
     ios_base::iostate __state = ios_base::goodbit;
-    typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 
-    if (__sen) 
-    { 
+    typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
+    if (__sen)
+    {
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
@@ -554,9 +554,9 @@ __input_c_string(basic_istream<_CharT, _Traits>& __is, _CharT* __p, size_t __n)
             if (__s == __p)
                __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
@@ -635,9 +635,9 @@ basic_istream<_CharT, _Traits>&
 operator>>(basic_istream<_CharT, _Traits>& __is, _CharT& __c)
 {
     ios_base::iostate __state = ios_base::goodbit;
-    typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 
-    if (__sen) 
-    { 
+    typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
+    if (__sen)
+    {
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
@@ -648,9 +648,9 @@ operator>>(basic_istream<_CharT, _Traits>& __is, _CharT& __c)
             else
                 __c = _Traits::to_char_type(__i);
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
@@ -686,38 +686,38 @@ basic_istream<_CharT, _Traits>::operator>>(basic_streambuf<char_type, traits_typ
 {
     ios_base::iostate __state = ios_base::goodbit;
     __gc_ = 0;
-    sentry __s(*this, true); 
-    if (__s) 
-    { 
-        if (__sb) 
+    sentry __s(*this, true);
+    if (__s)
+    {
+        if (__sb)
         {
-#ifndef _LIBCPP_NO_EXCEPTIONS 
-            try 
+#ifndef _LIBCPP_NO_EXCEPTIONS
+            try
             {
-#endif // _LIBCPP_NO_EXCEPTIONS 
-                while (true) 
+#endif // _LIBCPP_NO_EXCEPTIONS
+                while (true)
                 {
-                    typename traits_type::int_type __i = this->rdbuf()->sgetc(); 
-                    if (traits_type::eq_int_type(__i, _Traits::eof())) 
+                    typename traits_type::int_type __i = this->rdbuf()->sgetc();
+                    if (traits_type::eq_int_type(__i, _Traits::eof()))
                     {
                        __state |= ios_base::eofbit;
-                       break; 
+                       break;
                     }
-                    if (traits_type::eq_int_type( 
-                            __sb->sputc(traits_type::to_char_type(__i)), 
-                            traits_type::eof())) 
-                        break; 
-                    ++__gc_; 
-                    this->rdbuf()->sbumpc(); 
-                } 
-                if (__gc_ == 0) 
+                    if (traits_type::eq_int_type(
+                            __sb->sputc(traits_type::to_char_type(__i)),
+                            traits_type::eof()))
+                        break;
+                    ++__gc_;
+                    this->rdbuf()->sbumpc();
+                }
+                if (__gc_ == 0)
                    __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-            } 
-            catch (...) 
-            { 
+            }
+            catch (...)
+            {
                 __state |= ios_base::badbit;
-                if (__gc_ == 0) 
+                if (__gc_ == 0)
                     __state |= ios_base::failbit;
 
                 this->__setstate_nothrow(__state);
@@ -725,11 +725,11 @@ basic_istream<_CharT, _Traits>::operator>>(basic_streambuf<char_type, traits_typ
                 {
                     throw;
                 }
-            } 
+            }
 #endif // _LIBCPP_NO_EXCEPTIONS
-        } 
-        else 
-        { 
+        }
+        else
+        {
             __state |= ios_base::failbit;
         }
         this->setstate(__state);
@@ -744,9 +744,9 @@ basic_istream<_CharT, _Traits>::get()
     ios_base::iostate __state = ios_base::goodbit;
     __gc_ = 0;
     int_type __r = traits_type::eof();
-    sentry __s(*this, true); 
-    if (__s) 
-    { 
+    sentry __s(*this, true);
+    if (__s)
+    {
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
@@ -757,9 +757,9 @@ basic_istream<_CharT, _Traits>::get()
             else
                 __gc_ = 1;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             this->__setstate_nothrow(this->rdstate() | ios_base::badbit);
             if (this->exceptions() & ios_base::badbit)
             {
@@ -778,10 +778,10 @@ basic_istream<_CharT, _Traits>::get(char_type* __s, streamsize __n, char_type __
 {
     ios_base::iostate __state = ios_base::goodbit;
     __gc_ = 0;
-    sentry __sen(*this, true); 
-    if (__sen) 
-    { 
-        if (__n > 0) 
+    sentry __sen(*this, true);
+    if (__sen)
+    {
+        if (__n > 0)
         {
 #ifndef _LIBCPP_NO_EXCEPTIONS
             try
@@ -805,22 +805,22 @@ basic_istream<_CharT, _Traits>::get(char_type* __s, streamsize __n, char_type __
                 if (__gc_ == 0)
                    __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-            } 
+            }
             catch (...)
             {
                 __state |= ios_base::badbit;
                 this->__setstate_nothrow(__state);
                 if (this->exceptions() & ios_base::badbit)
                 {
-                    if (__n > 0) 
-                        *__s = char_type(); 
+                    if (__n > 0)
+                        *__s = char_type();
                     throw;
-                } 
+                }
             }
 #endif
         }
         else
-        { 
+        {
             __state |= ios_base::failbit;
         }
 
@@ -840,41 +840,41 @@ basic_istream<_CharT, _Traits>::get(basic_streambuf<char_type, traits_type>& __s
 {
     ios_base::iostate __state = ios_base::goodbit;
     __gc_ = 0;
-    sentry __sen(*this, true); 
-    if (__sen) 
-    { 
-#ifndef _LIBCPP_NO_EXCEPTIONS 
-        try 
+    sentry __sen(*this, true);
+    if (__sen)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        try
         {
 #endif // _LIBCPP_NO_EXCEPTIONS
-            while (true) 
+            while (true)
             {
-                typename traits_type::int_type __i = this->rdbuf()->sgetc(); 
-                if (traits_type::eq_int_type(__i, traits_type::eof())) 
+                typename traits_type::int_type __i = this->rdbuf()->sgetc();
+                if (traits_type::eq_int_type(__i, traits_type::eof()))
                 {
                    __state |= ios_base::eofbit;
-                   break; 
+                   break;
                 }
-                char_type __ch = traits_type::to_char_type(__i); 
-                if (traits_type::eq(__ch, __dlm)) 
-                    break; 
-                if (traits_type::eq_int_type(__sb.sputc(__ch), traits_type::eof())) 
-                    break; 
-                ++__gc_; 
-                this->rdbuf()->sbumpc(); 
-            } 
+                char_type __ch = traits_type::to_char_type(__i);
+                if (traits_type::eq(__ch, __dlm))
+                    break;
+                if (traits_type::eq_int_type(__sb.sputc(__ch), traits_type::eof()))
+                    break;
+                ++__gc_;
+                this->rdbuf()->sbumpc();
+            }
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             // according to the spec, exceptions here are caught but not rethrown
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
-        if (__gc_ == 0) 
+        if (__gc_ == 0)
            __state |= ios_base::failbit;
         this->setstate(__state);
-    } 
+    }
     return *this;
 }
 
@@ -888,8 +888,8 @@ basic_istream<_CharT, _Traits>::getline(char_type* __s, streamsize __n, char_typ
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             while (true)
             {
@@ -916,20 +916,20 @@ basic_istream<_CharT, _Traits>::getline(char_type* __s, streamsize __n, char_typ
                 ++__gc_;
             }
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
-                if (__n > 0) 
-                    *__s = char_type(); 
+                if (__n > 0)
+                    *__s = char_type();
                 if (__gc_ == 0)
                     __state |= ios_base::failbit;
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
     }
     if (__n > 0)
@@ -950,8 +950,8 @@ basic_istream<_CharT, _Traits>::ignore(streamsize __n, int_type __dlm)
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             if (__n == numeric_limits<streamsize>::max())
             {
@@ -984,16 +984,16 @@ basic_istream<_CharT, _Traits>::ignore(streamsize __n, int_type __dlm)
                 }
             }
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         this->setstate(__state);
     }
@@ -1011,23 +1011,23 @@ basic_istream<_CharT, _Traits>::peek()
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             __r = this->rdbuf()->sgetc();
             if (traits_type::eq_int_type(__r, traits_type::eof()))
                 __state |= ios_base::eofbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         this->setstate(__state);
     }
@@ -1044,23 +1044,23 @@ basic_istream<_CharT, _Traits>::read(char_type* __s, streamsize __n)
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             __gc_ = this->rdbuf()->sgetn(__s, __n);
             if (__gc_ != __n)
                 __state |= ios_base::failbit | ios_base::eofbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
     }
     else
@@ -1081,8 +1081,8 @@ basic_istream<_CharT, _Traits>::readsome(char_type* __s, streamsize __n)
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             streamsize __c = this->rdbuf()->in_avail();
             switch (__c)
@@ -1100,16 +1100,16 @@ basic_istream<_CharT, _Traits>::readsome(char_type* __s, streamsize __n)
                 break;
             }
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
     }
     else
@@ -1131,22 +1131,22 @@ basic_istream<_CharT, _Traits>::putback(char_type __c)
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             if (this->rdbuf() == nullptr || this->rdbuf()->sputbackc(__c) == traits_type::eof())
                 __state |= ios_base::badbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
     }
     else
@@ -1168,22 +1168,22 @@ basic_istream<_CharT, _Traits>::unget()
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             if (this->rdbuf() == nullptr || this->rdbuf()->sungetc() == traits_type::eof())
                 __state |= ios_base::badbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
     }
     else
@@ -1204,8 +1204,8 @@ basic_istream<_CharT, _Traits>::sync()
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             if (this->rdbuf() == nullptr)
                 return -1;
@@ -1215,16 +1215,16 @@ basic_istream<_CharT, _Traits>::sync()
                 return -1;
             }
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         this->setstate(__state);
     }
@@ -1241,21 +1241,21 @@ basic_istream<_CharT, _Traits>::tellg()
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
-        __r = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::in); 
+        __r = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::in);
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         this->setstate(__state);
     }
@@ -1272,22 +1272,22 @@ basic_istream<_CharT, _Traits>::seekg(pos_type __pos)
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             if (this->rdbuf()->pubseekpos(__pos, ios_base::in) == pos_type(-1))
                 __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         this->setstate(__state);
     }
@@ -1304,22 +1304,22 @@ basic_istream<_CharT, _Traits>::seekg(off_type __off, ios_base::seekdir __dir)
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             if (this->rdbuf()->pubseekoff(__off, __dir, ios_base::in) == pos_type(-1))
                 __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             this->__setstate_nothrow(__state);
             if (this->exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         this->setstate(__state);
     }
@@ -1335,8 +1335,8 @@ ws(basic_istream<_CharT, _Traits>& __is)
     if (__sen)
     {
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        try 
-        { 
+        try
+        {
 #endif // _LIBCPP_NO_EXCEPTIONS
             const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
             while (true)
@@ -1352,16 +1352,16 @@ ws(basic_istream<_CharT, _Traits>& __is)
                 __is.rdbuf()->sbumpc();
             }
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
             {
                 throw;
             }
-        } 
+        }
 #endif // _LIBCPP_NO_EXCEPTIONS
         __is.setstate(__state);
     }
@@ -1445,9 +1445,9 @@ operator>>(basic_istream<_CharT, _Traits>& __is,
            basic_string<_CharT, _Traits, _Allocator>& __str)
 {
     ios_base::iostate __state = ios_base::goodbit;
-    typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 
-    if (__sen) 
-    { 
+    typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
+    if (__sen)
+    {
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
@@ -1479,9 +1479,9 @@ operator>>(basic_istream<_CharT, _Traits>& __is,
             if (__c == 0)
                __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
@@ -1501,9 +1501,9 @@ getline(basic_istream<_CharT, _Traits>& __is,
         basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm)
 {
     ios_base::iostate __state = ios_base::goodbit;
-    typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true); 
-    if (__sen) 
-    { 
+    typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true);
+    if (__sen)
+    {
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
@@ -1532,9 +1532,9 @@ getline(basic_istream<_CharT, _Traits>& __is,
             if (__extr == 0)
                __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
@@ -1580,9 +1580,9 @@ basic_istream<_CharT, _Traits>&
 operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x)
 {
     ios_base::iostate __state = ios_base::goodbit;
-    typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 
-    if (__sen) 
-    { 
+    typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
+    if (__sen)
+    {
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
@@ -1611,9 +1611,9 @@ operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x)
             if (_Size > 0 && __c == 0)
                __state |= ios_base::failbit;
 #ifndef _LIBCPP_NO_EXCEPTIONS
-        } 
-        catch (...) 
-        { 
+        }
+        catch (...)
+        {
             __state |= ios_base::badbit;
             __is.__setstate_nothrow(__state);
             if (__is.exceptions() & ios_base::badbit)
diff --git a/contrib/libs/cxxsupp/libcxx/include/list b/contrib/libs/cxxsupp/libcxx/include/list
index 8c6c95a04a..71406c6743 100644
--- a/contrib/libs/cxxsupp/libcxx/include/list
+++ b/contrib/libs/cxxsupp/libcxx/include/list
@@ -2021,22 +2021,22 @@ list<_Tp, _Alloc>::splice(const_iterator __p, list& __c)
         __c.__sz() = 0;
 #if _LIBCPP_DEBUG_LEVEL == 2
         if (&__c != this) {
-            __libcpp_db* __db = __get_db(); 
-            __c_node* __cn1 = __db->__find_c_and_lock(this); 
-            __c_node* __cn2 = __db->__find_c(&__c); 
-            for (__i_node** __ip = __cn2->end_; __ip != __cn2->beg_;) 
+            __libcpp_db* __db = __get_db();
+            __c_node* __cn1 = __db->__find_c_and_lock(this);
+            __c_node* __cn2 = __db->__find_c(&__c);
+            for (__i_node** __ip = __cn2->end_; __ip != __cn2->beg_;)
             {
-                --__ip; 
-                iterator* __i = static_cast<iterator*>((*__ip)->__i_); 
-                if (__i->__ptr_ != __c.__end_as_link()) 
-                { 
-                    __cn1->__add(*__ip); 
-                    (*__ip)->__c_ = __cn1; 
-                    if (--__cn2->end_ != __ip) 
-                        memmove(__ip, __ip+1, (__cn2->end_ - __ip)*sizeof(__i_node*)); 
-                } 
+                --__ip;
+                iterator* __i = static_cast<iterator*>((*__ip)->__i_);
+                if (__i->__ptr_ != __c.__end_as_link())
+                {
+                    __cn1->__add(*__ip);
+                    (*__ip)->__c_ = __cn1;
+                    if (--__cn2->end_ != __ip)
+                        memmove(__ip, __ip+1, (__cn2->end_ - __ip)*sizeof(__i_node*));
+                }
             }
-            __db->unlock(); 
+            __db->unlock();
         }
 #endif
     }
@@ -2066,22 +2066,22 @@ list<_Tp, _Alloc>::splice(const_iterator __p, list& __c, const_iterator __i)
         ++base::__sz();
 #if _LIBCPP_DEBUG_LEVEL == 2
         if (&__c != this) {
-            __libcpp_db* __db = __get_db(); 
-            __c_node* __cn1 = __db->__find_c_and_lock(this); 
-            __c_node* __cn2 = __db->__find_c(&__c); 
-            for (__i_node** __ip = __cn2->end_; __ip != __cn2->beg_;) 
+            __libcpp_db* __db = __get_db();
+            __c_node* __cn1 = __db->__find_c_and_lock(this);
+            __c_node* __cn2 = __db->__find_c(&__c);
+            for (__i_node** __ip = __cn2->end_; __ip != __cn2->beg_;)
             {
-                --__ip; 
-                iterator* __j = static_cast<iterator*>((*__ip)->__i_); 
-                if (__j->__ptr_ == __f) 
-                { 
-                    __cn1->__add(*__ip); 
-                    (*__ip)->__c_ = __cn1; 
-                    if (--__cn2->end_ != __ip) 
-                        _VSTD::memmove(__ip, __ip+1, (__cn2->end_ - __ip)*sizeof(__i_node*)); 
-                } 
+                --__ip;
+                iterator* __j = static_cast<iterator*>((*__ip)->__i_);
+                if (__j->__ptr_ == __f)
+                {
+                    __cn1->__add(*__ip);
+                    (*__ip)->__c_ = __cn1;
+                    if (--__cn2->end_ != __ip)
+                        _VSTD::memmove(__ip, __ip+1, (__cn2->end_ - __ip)*sizeof(__i_node*));
+                }
             }
-            __db->unlock(); 
+            __db->unlock();
         }
 #endif
     }
@@ -2125,26 +2125,26 @@ list<_Tp, _Alloc>::splice(const_iterator __p, list& __c, const_iterator __f, con
         __link_nodes(__p.__ptr_, __first, __last);
 #if _LIBCPP_DEBUG_LEVEL == 2
         if (&__c != this) {
-            __libcpp_db* __db = __get_db(); 
-            __c_node* __cn1 = __db->__find_c_and_lock(this); 
-            __c_node* __cn2 = __db->__find_c(&__c); 
-            for (__i_node** __ip = __cn2->end_; __ip != __cn2->beg_;) 
+            __libcpp_db* __db = __get_db();
+            __c_node* __cn1 = __db->__find_c_and_lock(this);
+            __c_node* __cn2 = __db->__find_c(&__c);
+            for (__i_node** __ip = __cn2->end_; __ip != __cn2->beg_;)
             {
-                --__ip; 
-                iterator* __j = static_cast<iterator*>((*__ip)->__i_); 
-                for (__link_pointer __k = __f.__ptr_; 
-                                              __k != __l.__ptr_; __k = __k->__next_) 
+                --__ip;
+                iterator* __j = static_cast<iterator*>((*__ip)->__i_);
+                for (__link_pointer __k = __f.__ptr_;
+                                              __k != __l.__ptr_; __k = __k->__next_)
                 {
-                    if (__j->__ptr_ == __k) 
-                    { 
-                        __cn1->__add(*__ip); 
-                        (*__ip)->__c_ = __cn1; 
-                        if (--__cn2->end_ != __ip) 
-                            _VSTD::memmove(__ip, __ip+1, (__cn2->end_ - __ip)*sizeof(__i_node*)); 
-                    } 
+                    if (__j->__ptr_ == __k)
+                    {
+                        __cn1->__add(*__ip);
+                        (*__ip)->__c_ = __cn1;
+                        if (--__cn2->end_ != __ip)
+                            _VSTD::memmove(__ip, __ip+1, (__cn2->end_ - __ip)*sizeof(__i_node*));
+                    }
                 }
             }
-            __db->unlock(); 
+            __db->unlock();
         }
 #endif
     }
diff --git a/contrib/libs/cxxsupp/libcxx/include/locale b/contrib/libs/cxxsupp/libcxx/include/locale
index 29fc1acd27..242790a9d4 100644
--- a/contrib/libs/cxxsupp/libcxx/include/locale
+++ b/contrib/libs/cxxsupp/libcxx/include/locale
@@ -891,7 +891,7 @@ num_get<_CharT, _InputIterator>::do_get(iter_type __b, iter_type __e,
     typedef typename numpunct<_CharT>::string_type string_type;
     const string_type __names[2] = {__np.truename(), __np.falsename()};
     const string_type* __i = _VSTD::__scan_keyword(__b, __e, __names, __names+2,
-                                                   __ct, __err); 
+                                                   __ct, __err);
     __v = __i == __names;
     return __b;
 }
diff --git a/contrib/libs/cxxsupp/libcxx/include/locale.h b/contrib/libs/cxxsupp/libcxx/include/locale.h
index f3f0eccacf..52c452001d 100644
--- a/contrib/libs/cxxsupp/libcxx/include/locale.h
+++ b/contrib/libs/cxxsupp/libcxx/include/locale.h
@@ -40,7 +40,7 @@ Functions:
 #endif
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#   pragma GCC system_header 
+#   pragma GCC system_header
 #endif
 
 #ifdef _LIBCPP_COMPILER_MSVC
diff --git a/contrib/libs/cxxsupp/libcxx/include/map b/contrib/libs/cxxsupp/libcxx/include/map
index 4ecf3954d1..c78a7ee31a 100644
--- a/contrib/libs/cxxsupp/libcxx/include/map
+++ b/contrib/libs/cxxsupp/libcxx/include/map
@@ -1301,7 +1301,7 @@ public:
         __r->__get_value().second = _VSTD::forward<_Vp>(__v);
 
       return __r;
-    } 
+    }
 
     template <class _Vp>
     _LIBCPP_INLINE_VISIBILITY iterator insert_or_assign(const_iterator __h,
@@ -1314,7 +1314,7 @@ public:
         __r->__get_value().second = _VSTD::forward<_Vp>(__v);
 
       return __r;
-    } 
+    }
 
 #endif // _LIBCPP_STD_VER > 14
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/memory b/contrib/libs/cxxsupp/libcxx/include/memory
index 0633f1fc3a..1975092ba0 100644
--- a/contrib/libs/cxxsupp/libcxx/include/memory
+++ b/contrib/libs/cxxsupp/libcxx/include/memory
@@ -122,7 +122,7 @@ public:
     typedef typename add_lvalue_reference<const T>::type
                       const_reference;                   // deprecated in C++17, removed in C++20
 
-    typedef T         value_type; 
+    typedef T         value_type;
 
     template <class U> struct rebind {typedef allocator<U> other;}; // deprecated in C++17, removed in C++20
 
@@ -342,7 +342,7 @@ public:
     pointer release() noexcept;
     void reset(pointer p = pointer()) noexcept;
     void reset(nullptr_t) noexcept;
-  template <class U> void reset(U) = delete; 
+  template <class U> void reset(U) = delete;
     void swap(unique_ptr& u) noexcept;
 };
 
@@ -567,7 +567,7 @@ template<class T> void swap(weak_ptr<T>& a, weak_ptr<T>& b) noexcept;
 template<class T> struct owner_less;
 
 template<class T>
-struct owner_less<shared_ptr<T> > 
+struct owner_less<shared_ptr<T> >
     : binary_function<shared_ptr<T>, shared_ptr<T>, bool>
 {
     typedef bool result_type;
@@ -577,7 +577,7 @@ struct owner_less<shared_ptr<T> >
 };
 
 template<class T>
-struct owner_less<weak_ptr<T> > 
+struct owner_less<weak_ptr<T> >
     : binary_function<weak_ptr<T>, weak_ptr<T>, bool>
 {
     typedef bool result_type;
diff --git a/contrib/libs/cxxsupp/libcxx/include/mutex b/contrib/libs/cxxsupp/libcxx/include/mutex
index a2edfa4240..e815dda502 100644
--- a/contrib/libs/cxxsupp/libcxx/include/mutex
+++ b/contrib/libs/cxxsupp/libcxx/include/mutex
@@ -580,14 +580,14 @@ struct _LIBCPP_TEMPLATE_VIS once_flag
     _LIBCPP_INLINE_VISIBILITY
     _LIBCPP_CONSTEXPR
         once_flag() _NOEXCEPT : __state_(0) {}
- 
+
 #if defined(_LIBCPP_ABI_MICROSOFT)
-   typedef uintptr_t _State_type; 
+   typedef uintptr_t _State_type;
 #else
-   typedef unsigned long _State_type; 
+   typedef unsigned long _State_type;
 #endif
 
- 
+
 private:
     once_flag(const once_flag&); // = delete;
     once_flag& operator=(const once_flag&); // = delete;
@@ -668,10 +668,10 @@ __call_once_proxy(void* __vp)
 
 #ifdef _LIBCPP_ABI_MICROSOFT
 _LIBCPP_FUNC_VIS void __call_once(volatile atomic<once_flag::_State_type>&, void*,
-                                  void (*)(void*)); 
+                                  void (*)(void*));
 #else
 _LIBCPP_FUNC_VIS void __call_once(volatile once_flag::_State_type&, void*,
-                                  void (*)(void*)); 
+                                  void (*)(void*));
 #endif
 
 #ifndef _LIBCPP_CXX03_LANG
diff --git a/contrib/libs/cxxsupp/libcxx/include/numeric b/contrib/libs/cxxsupp/libcxx/include/numeric
index e4ab8e70f0..8ea7ecc375 100644
--- a/contrib/libs/cxxsupp/libcxx/include/numeric
+++ b/contrib/libs/cxxsupp/libcxx/include/numeric
@@ -368,7 +368,7 @@ _OutputIterator inclusive_scan(_InputIterator __first, _InputIterator __last,
     for (; __first != __last; ++__first, (void) ++__result) {
         __init = __b(__init, *__first);
         *__result = __init;
-    } 
+    }
     return __result;
 }
 
@@ -382,7 +382,7 @@ _OutputIterator inclusive_scan(_InputIterator __first, _InputIterator __last,
         *__result++ = __init;
         if (++__first != __last)
             return _VSTD::inclusive_scan(__first, __last, __result, __b, __init);
-    } 
+    }
 
     return __result;
 }
@@ -442,7 +442,7 @@ transform_inclusive_scan(_InputIterator __first, _InputIterator __last,
         *__result++ = __init;
         if (++__first != __last)
             return _VSTD::transform_inclusive_scan(__first, __last, __result, __b, __u, __init);
-    } 
+    }
 
     return __result;
 }
@@ -513,9 +513,9 @@ struct __ct_abs<_Result, _Source, true> {
     _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
     _Result operator()(_Source __t) const noexcept
     {
-        if (__t >= 0) return __t; 
-        if (__t == numeric_limits<_Source>::min()) return -static_cast<_Result>(__t); 
-        return -__t; 
+        if (__t >= 0) return __t;
+        if (__t == numeric_limits<_Source>::min()) return -static_cast<_Result>(__t);
+        return -__t;
     }
 };
 
@@ -614,8 +614,8 @@ _LIBCPP_INLINE_VISIBILITY constexpr
 enable_if_t<is_floating_point_v<_Fp>, _Fp>
 midpoint(_Fp __a, _Fp __b) noexcept
 {
-	constexpr _Fp __lo = numeric_limits<_Fp>::min()*2; 
-	constexpr _Fp __hi = numeric_limits<_Fp>::max()/2; 
+	constexpr _Fp __lo = numeric_limits<_Fp>::min()*2;
+	constexpr _Fp __hi = numeric_limits<_Fp>::max()/2;
     return __fp_abs(__a) <= __hi && __fp_abs(__b) <= __hi ?  // typical case: overflow is impossible
       (__a + __b)/2 :                                        // always correctly rounded
       __fp_abs(__a) < __lo ? __a + __b/2 :                   // not safe to halve a
diff --git a/contrib/libs/cxxsupp/libcxx/include/optional b/contrib/libs/cxxsupp/libcxx/include/optional
index a99ccae0e9..0f6d233051 100644
--- a/contrib/libs/cxxsupp/libcxx/include/optional
+++ b/contrib/libs/cxxsupp/libcxx/include/optional
@@ -321,7 +321,7 @@ struct __optional_storage_base : __optional_destruct_base<_Tp>
 #if _LIBCPP_STD_VER > 17
         _VSTD::construct_at(_VSTD::addressof(this->__val_), _VSTD::forward<_Args>(__args)...);
 #else
-        ::new ((void*)_VSTD::addressof(this->__val_)) value_type(_VSTD::forward<_Args>(__args)...); 
+        ::new ((void*)_VSTD::addressof(this->__val_)) value_type(_VSTD::forward<_Args>(__args)...);
 #endif
         this->__engaged_ = true;
     }
diff --git a/contrib/libs/cxxsupp/libcxx/include/queue b/contrib/libs/cxxsupp/libcxx/include/queue
index 834115900e..cbd07140a7 100644
--- a/contrib/libs/cxxsupp/libcxx/include/queue
+++ b/contrib/libs/cxxsupp/libcxx/include/queue
@@ -70,8 +70,8 @@ public:
 
 template<class Container>
   queue(Container) -> queue<typename Container::value_type, Container>; // C++17
- 
-template<class Container, class Allocator> 
+
+template<class Container, class Allocator>
   queue(Container, Allocator) -> queue<typename Container::value_type, Container>; // C++17
 
 template <class T, class Container>
@@ -170,13 +170,13 @@ public:
 template <class Compare, class Container>
 priority_queue(Compare, Container)
     -> priority_queue<typename Container::value_type, Container, Compare>; // C++17
- 
-template<class InputIterator, 
+
+template<class InputIterator,
          class Compare = less<iter-value-type<InputIterator>>,
          class Container = vector<iter-value-type<InputIterator>>>
 priority_queue(InputIterator, InputIterator, Compare = Compare(), Container = Container())
     -> priority_queue<iter-value-type<InputIterator>, Container, Compare>; // C++17
- 
+
 template<class Compare, class Container, class Allocator>
 priority_queue(Compare, Container, Allocator)
     -> priority_queue<typename Container::value_type, Container, Compare>; // C++17
@@ -364,7 +364,7 @@ template<class _Container,
 >
 queue(_Container)
     -> queue<typename _Container::value_type, _Container>;
- 
+
 template<class _Container,
          class _Alloc,
          class = enable_if_t<!__is_allocator<_Container>::value>,
@@ -592,8 +592,8 @@ template <class _Compare,
 >
 priority_queue(_Compare, _Container)
     -> priority_queue<typename _Container::value_type, _Container, _Compare>;
- 
-template<class _InputIterator, 
+
+template<class _InputIterator,
          class _Compare = less<__iter_value_type<_InputIterator>>,
          class _Container = vector<__iter_value_type<_InputIterator>>,
          class = enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value>,
@@ -602,8 +602,8 @@ template<class _InputIterator,
 >
 priority_queue(_InputIterator, _InputIterator, _Compare = _Compare(), _Container = _Container())
     -> priority_queue<__iter_value_type<_InputIterator>, _Container, _Compare>;
- 
-template<class _Compare, 
+
+template<class _Compare,
          class _Container,
          class _Alloc,
          class = enable_if_t<!__is_allocator<_Compare>::value>,
diff --git a/contrib/libs/cxxsupp/libcxx/include/random b/contrib/libs/cxxsupp/libcxx/include/random
index e7ca4a9aa8..1320250897 100644
--- a/contrib/libs/cxxsupp/libcxx/include/random
+++ b/contrib/libs/cxxsupp/libcxx/include/random
@@ -6701,7 +6701,7 @@ public:
         template<class _UnaryOperation>
             param_type(size_t __nw, result_type __xmin, result_type __xmax,
                        _UnaryOperation __fw);
-        param_type(param_type const&) = default; 
+        param_type(param_type const&) = default;
         param_type & operator=(const param_type& __rhs);
 
         _LIBCPP_INLINE_VISIBILITY
diff --git a/contrib/libs/cxxsupp/libcxx/include/regex b/contrib/libs/cxxsupp/libcxx/include/regex
index a75e04fea1..c0d1edac5e 100644
--- a/contrib/libs/cxxsupp/libcxx/include/regex
+++ b/contrib/libs/cxxsupp/libcxx/include/regex
@@ -171,14 +171,14 @@ public:
     // assign:
     basic_regex& assign(const basic_regex& that);
     basic_regex& assign(basic_regex&& that) noexcept;
-    basic_regex& assign(const charT* ptr,           flag_type f = regex_constants::ECMAScript); 
+    basic_regex& assign(const charT* ptr,           flag_type f = regex_constants::ECMAScript);
     basic_regex& assign(const charT* p, size_t len, flag_type f = regex_constants::ECMAScript);
     template <class string_traits, class A>
         basic_regex& assign(const basic_string<charT, string_traits, A>& s,
-                                                    flag_type f = regex_constants::ECMAScript); 
+                                                    flag_type f = regex_constants::ECMAScript);
     template <class InputIterator>
         basic_regex& assign(InputIterator first, InputIterator last,
-                                                    flag_type f = regex_constants::ECMAScript); 
+                                                    flag_type f = regex_constants::ECMAScript);
     basic_regex& assign(initializer_list<charT>,    flag_type f = regex_constants::ECMAScript);
 
     // const operations:
@@ -702,7 +702,7 @@ typedef regex_iterator<string::const_iterator>  sregex_iterator;
 typedef regex_iterator<wstring::const_iterator> wsregex_iterator;
 
 template <class BidirectionalIterator,
-          class charT = typename iterator_traits<BidirectionalIterator>::value_type, 
+          class charT = typename iterator_traits<BidirectionalIterator>::value_type,
           class traits = regex_traits<charT>>
 class regex_token_iterator
 {
diff --git a/contrib/libs/cxxsupp/libcxx/include/set b/contrib/libs/cxxsupp/libcxx/include/set
index 6354765c10..46b515ba53 100644
--- a/contrib/libs/cxxsupp/libcxx/include/set
+++ b/contrib/libs/cxxsupp/libcxx/include/set
@@ -156,7 +156,7 @@ public:
         const_iterator find(const K& x) const;  // C++14
 
     template<typename K>
-        size_type count(const K& x) const;        // C++14 
+        size_type count(const K& x) const;        // C++14
     size_type      count(const key_type& k) const;
 
         bool contains(const key_type& x) const; // C++20
diff --git a/contrib/libs/cxxsupp/libcxx/include/span b/contrib/libs/cxxsupp/libcxx/include/span
index eb1aff44c0..5d57bd693c 100644
--- a/contrib/libs/cxxsupp/libcxx/include/span
+++ b/contrib/libs/cxxsupp/libcxx/include/span
@@ -104,7 +104,7 @@ public:
     constexpr reverse_iterator rend() const noexcept;
 
 private:
-    pointer data_;    // exposition only 
+    pointer data_;    // exposition only
     size_type size_;  // exposition only
 };
 
@@ -321,7 +321,7 @@ public:
 
     template <size_t _Count>
     _LIBCPP_INLINE_VISIBILITY
-    constexpr span<element_type, _Count> first() const noexcept 
+    constexpr span<element_type, _Count> first() const noexcept
     {
         static_assert(_Count <= _Extent, "Count out of range in span::first()");
         return span<element_type, _Count>{data(), _Count};
@@ -329,7 +329,7 @@ public:
 
     template <size_t _Count>
     _LIBCPP_INLINE_VISIBILITY
-    constexpr span<element_type, _Count> last() const noexcept 
+    constexpr span<element_type, _Count> last() const noexcept
     {
         static_assert(_Count <= _Extent, "Count out of range in span::last()");
         return span<element_type, _Count>{data() + size() - _Count, _Count};
@@ -351,7 +351,7 @@ public:
 
     template <size_t _Offset, size_t _Count = dynamic_extent>
     _LIBCPP_INLINE_VISIBILITY
-    constexpr auto subspan() const noexcept 
+    constexpr auto subspan() const noexcept
         -> span<element_type, _Count != dynamic_extent ? _Count : _Extent - _Offset>
     {
         static_assert(_Offset <= _Extent, "Offset out of range in span::subspan()");
@@ -376,7 +376,7 @@ public:
 
     _LIBCPP_INLINE_VISIBILITY constexpr size_type size()       const noexcept { return _Extent; }
     _LIBCPP_INLINE_VISIBILITY constexpr size_type size_bytes() const noexcept { return _Extent * sizeof(element_type); }
-    _LIBCPP_INLINE_VISIBILITY constexpr bool empty()           const noexcept { return _Extent == 0; } 
+    _LIBCPP_INLINE_VISIBILITY constexpr bool empty()           const noexcept { return _Extent == 0; }
 
     _LIBCPP_INLINE_VISIBILITY constexpr reference operator[](size_type __idx) const noexcept
     {
@@ -469,17 +469,17 @@ public:
 
     template <size_t _Sz>
     _LIBCPP_INLINE_VISIBILITY
-    constexpr span(element_type (&__arr)[_Sz])          noexcept : __data{__arr}, __size{_Sz} {} 
+    constexpr span(element_type (&__arr)[_Sz])          noexcept : __data{__arr}, __size{_Sz} {}
 
     template <class _OtherElementType, size_t _Sz,
               enable_if_t<is_convertible_v<_OtherElementType(*)[], element_type (*)[]>, nullptr_t> = nullptr>
     _LIBCPP_INLINE_VISIBILITY
-    constexpr span(array<_OtherElementType, _Sz>& __arr) noexcept : __data{__arr.data()}, __size{_Sz} {} 
+    constexpr span(array<_OtherElementType, _Sz>& __arr) noexcept : __data{__arr.data()}, __size{_Sz} {}
 
     template <class _OtherElementType, size_t _Sz,
               enable_if_t<is_convertible_v<const _OtherElementType(*)[], element_type (*)[]>, nullptr_t> = nullptr>
     _LIBCPP_INLINE_VISIBILITY
-    constexpr span(const array<_OtherElementType, _Sz>& __arr) noexcept : __data{__arr.data()}, __size{_Sz} {} 
+    constexpr span(const array<_OtherElementType, _Sz>& __arr) noexcept : __data{__arr.data()}, __size{_Sz} {}
 
 #if !defined(_LIBCPP_HAS_NO_RANGES)
     template <__span_compatible_range<element_type> _Range>
@@ -562,7 +562,7 @@ public:
 
     _LIBCPP_INLINE_VISIBILITY constexpr size_type size()       const noexcept { return __size; }
     _LIBCPP_INLINE_VISIBILITY constexpr size_type size_bytes() const noexcept { return __size * sizeof(element_type); }
-    _LIBCPP_INLINE_VISIBILITY constexpr bool empty()           const noexcept { return __size == 0; } 
+    _LIBCPP_INLINE_VISIBILITY constexpr bool empty()           const noexcept { return __size == 0; }
 
     _LIBCPP_INLINE_VISIBILITY constexpr reference operator[](size_type __idx) const noexcept
     {
@@ -596,7 +596,7 @@ public:
     inline _LIBCPP_INLINE_VISIBILITY span<byte, dynamic_extent> __as_writable_bytes() const noexcept;
 
 private:
-    pointer   __data; 
+    pointer   __data;
     size_type __size;
 };
 
@@ -621,7 +621,7 @@ template <class _Tp, size_t _Extent>
 _LIBCPP_INLINE_VISIBILITY
 auto as_bytes(span<_Tp, _Extent> __s) noexcept
 -> decltype(__s.__as_bytes())
-{ return    __s.__as_bytes(); } 
+{ return    __s.__as_bytes(); }
 
 template <class _Tp, size_t _Extent>
 _LIBCPP_INLINE_VISIBILITY
diff --git a/contrib/libs/cxxsupp/libcxx/include/sstream b/contrib/libs/cxxsupp/libcxx/include/sstream
index a130aa97d7..fbe5ffcab4 100644
--- a/contrib/libs/cxxsupp/libcxx/include/sstream
+++ b/contrib/libs/cxxsupp/libcxx/include/sstream
@@ -256,7 +256,7 @@ protected:
     virtual pos_type seekpos(pos_type __sp,
                              ios_base::openmode __wch = ios_base::in | ios_base::out) {
         return seekoff(__sp, ios_base::beg, __wch);
-    } 
+    }
 };
 
 template <class _CharT, class _Traits, class _Allocator>
@@ -656,31 +656,31 @@ public:
     basic_istringstream(basic_istringstream&& __rhs)
         : basic_istream<_CharT, _Traits>(_VSTD::move(__rhs))
         , __sb_(_VSTD::move(__rhs.__sb_))
-    { 
-        basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 
-    } 
+    {
+        basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_);
+    }
 
     // 27.8.2.2 Assign and swap:
     basic_istringstream& operator=(basic_istringstream&& __rhs) {
-        basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); 
-        __sb_ = _VSTD::move(__rhs.__sb_); 
-        return *this; 
-    } 
+        basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
+        __sb_ = _VSTD::move(__rhs.__sb_);
+        return *this;
+    }
     _LIBCPP_INLINE_VISIBILITY
     void swap(basic_istringstream& __rhs) {
-        basic_istream<char_type, traits_type>::swap(__rhs); 
-        __sb_.swap(__rhs.__sb_); 
-    } 
+        basic_istream<char_type, traits_type>::swap(__rhs);
+        __sb_.swap(__rhs.__sb_);
+    }
 
     // 27.8.2.3 Members:
     _LIBCPP_INLINE_VISIBILITY
     basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {
-        return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 
-    } 
+        return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
+    }
     _LIBCPP_INLINE_VISIBILITY
     string_type str() const {
-        return __sb_.str(); 
-    } 
+        return __sb_.str();
+    }
     _LIBCPP_INLINE_VISIBILITY
     void str(const string_type& __s) {
         __sb_.str(__s);
@@ -736,32 +736,32 @@ public:
     basic_ostringstream(basic_ostringstream&& __rhs)
         : basic_ostream<_CharT, _Traits>(_VSTD::move(__rhs))
         , __sb_(_VSTD::move(__rhs.__sb_))
-    { 
-        basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_); 
-    } 
+    {
+        basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_);
+    }
 
     // 27.8.2.2 Assign and swap:
     basic_ostringstream& operator=(basic_ostringstream&& __rhs) {
-        basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); 
-        __sb_ = _VSTD::move(__rhs.__sb_); 
-        return *this; 
-    } 
+        basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
+        __sb_ = _VSTD::move(__rhs.__sb_);
+        return *this;
+    }
 
     _LIBCPP_INLINE_VISIBILITY
     void swap(basic_ostringstream& __rhs) {
-        basic_ostream<char_type, traits_type>::swap(__rhs); 
-        __sb_.swap(__rhs.__sb_); 
-    } 
+        basic_ostream<char_type, traits_type>::swap(__rhs);
+        __sb_.swap(__rhs.__sb_);
+    }
 
     // 27.8.2.3 Members:
     _LIBCPP_INLINE_VISIBILITY
     basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {
-        return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 
-    } 
+        return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
+    }
     _LIBCPP_INLINE_VISIBILITY
     string_type str() const {
-        return __sb_.str(); 
-    } 
+        return __sb_.str();
+    }
     _LIBCPP_INLINE_VISIBILITY
     void str(const string_type& __s) {
         __sb_.str(__s);
@@ -817,31 +817,31 @@ public:
     basic_stringstream(basic_stringstream&& __rhs)
         : basic_iostream<_CharT, _Traits>(_VSTD::move(__rhs))
         , __sb_(_VSTD::move(__rhs.__sb_))
-    { 
-        basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 
-    } 
+    {
+        basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_);
+    }
 
     // 27.8.2.2 Assign and swap:
     basic_stringstream& operator=(basic_stringstream&& __rhs) {
-        basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); 
-        __sb_ = _VSTD::move(__rhs.__sb_); 
-        return *this; 
-    } 
+        basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
+        __sb_ = _VSTD::move(__rhs.__sb_);
+        return *this;
+    }
     _LIBCPP_INLINE_VISIBILITY
     void swap(basic_stringstream& __rhs) {
-        basic_iostream<char_type, traits_type>::swap(__rhs); 
-        __sb_.swap(__rhs.__sb_); 
-    } 
+        basic_iostream<char_type, traits_type>::swap(__rhs);
+        __sb_.swap(__rhs.__sb_);
+    }
 
     // 27.8.2.3 Members:
     _LIBCPP_INLINE_VISIBILITY
     basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {
-        return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 
-    } 
+        return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
+    }
     _LIBCPP_INLINE_VISIBILITY
     string_type str() const {
-        return __sb_.str(); 
-    } 
+        return __sb_.str();
+    }
     _LIBCPP_INLINE_VISIBILITY
     void str(const string_type& __s) {
         __sb_.str(__s);
diff --git a/contrib/libs/cxxsupp/libcxx/include/stack b/contrib/libs/cxxsupp/libcxx/include/stack
index 866fbd6b83..436993c6f3 100644
--- a/contrib/libs/cxxsupp/libcxx/include/stack
+++ b/contrib/libs/cxxsupp/libcxx/include/stack
@@ -62,8 +62,8 @@ public:
 
 template<class Container>
   stack(Container) -> stack<typename Container::value_type, Container>;  // C++17
- 
-template<class Container, class Allocator> 
+
+template<class Container, class Allocator>
   stack(Container, Allocator) -> stack<typename Container::value_type, Container>; // C++17
 
 template <class T, class Container>
@@ -120,7 +120,7 @@ public:
     typedef typename container_type::const_reference const_reference;
     typedef typename container_type::size_type       size_type;
     static_assert((is_same<_Tp, value_type>::value), "" );
- 
+
 protected:
     container_type c;
 
@@ -237,12 +237,12 @@ template<class _Container,
 >
 stack(_Container)
     -> stack<typename _Container::value_type, _Container>;
- 
+
 template<class _Container,
          class _Alloc,
          class = enable_if_t<!__is_allocator<_Container>::value>,
          class = enable_if_t<uses_allocator<_Container, _Alloc>::value>
-         > 
+         >
 stack(_Container, _Alloc)
     -> stack<typename _Container::value_type, _Container>;
 #endif
diff --git a/contrib/libs/cxxsupp/libcxx/include/string b/contrib/libs/cxxsupp/libcxx/include/string
index 1a951b9d25..4f3309fea9 100644
--- a/contrib/libs/cxxsupp/libcxx/include/string
+++ b/contrib/libs/cxxsupp/libcxx/include/string
@@ -880,7 +880,7 @@ public:
     template<class _Tp, class = __enable_if_t<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value> >
         _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
         basic_string(const _Tp& __t, size_type __pos, size_type __n,
-                     const allocator_type& __a = allocator_type()); 
+                     const allocator_type& __a = allocator_type());
 
     template<class _Tp, class = __enable_if_t<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value &&
                                           !__is_same_uncvref<_Tp, basic_string>::value> >
@@ -2379,18 +2379,18 @@ template <class _CharT, class _Traits, class _Allocator>
 basic_string<_CharT, _Traits, _Allocator>&
 basic_string<_CharT, _Traits, _Allocator>::__assign_external(
     const value_type* __s, size_type __n) {
-  size_type __cap = capacity(); 
+  size_type __cap = capacity();
   if (__cap >= __n) {
-    value_type* __p = _VSTD::__to_address(__get_pointer()); 
-    traits_type::move(__p, __s, __n); 
-    traits_type::assign(__p[__n], value_type()); 
-    __set_size(__n); 
-    __invalidate_iterators_past(__n); 
+    value_type* __p = _VSTD::__to_address(__get_pointer());
+    traits_type::move(__p, __s, __n);
+    traits_type::assign(__p[__n], value_type());
+    __set_size(__n);
+    __invalidate_iterators_past(__n);
   } else {
-    size_type __sz = size(); 
-    __grow_by_and_replace(__cap, __n - __cap, __sz, 0, __sz, __n, __s); 
-  } 
-  return *this; 
+    size_type __sz = size();
+    __grow_by_and_replace(__cap, __n - __cap, __sz, 0, __sz, __n, __s);
+  }
+  return *this;
 }
 
 template <class _CharT, class _Traits, class _Allocator>
@@ -2495,7 +2495,7 @@ basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, tr
     }
 #endif
   }
-  __move_assign_alloc(__str); 
+  __move_assign_alloc(__str);
   __r_.first() = __str.__r_.first();
   __str.__set_short_size(0);
   traits_type::assign(__str.__get_short_pointer()[0], value_type());
@@ -3219,7 +3219,7 @@ basic_string<_CharT, _Traits, _Allocator>::erase(size_type __pos,
   } else {
     __erase_external_with_move(__pos, __n);
   }
-  return *this; 
+  return *this;
 }
 
 template <class _CharT, class _Traits, class _Allocator>
@@ -3386,55 +3386,55 @@ basic_string<_CharT, _Traits, _Allocator>::__shrink_or_extend(size_type __target
     size_type __cap = capacity();
     size_type __sz = size();
 
-    pointer __new_data, __p; 
-    bool __was_long, __now_long; 
+    pointer __new_data, __p;
+    bool __was_long, __now_long;
     if (__target_capacity == __min_cap - 1)
-    { 
-        __was_long = true; 
-        __now_long = false; 
-        __new_data = __get_short_pointer(); 
-        __p = __get_long_pointer(); 
-    } 
-    else 
-    { 
-        if (__target_capacity > __cap) 
-            __new_data = __alloc_traits::allocate(__alloc(), __target_capacity+1); 
+    {
+        __was_long = true;
+        __now_long = false;
+        __new_data = __get_short_pointer();
+        __p = __get_long_pointer();
+    }
+    else
+    {
+        if (__target_capacity > __cap)
+            __new_data = __alloc_traits::allocate(__alloc(), __target_capacity+1);
         else
         {
-        #ifndef _LIBCPP_NO_EXCEPTIONS 
-            try 
+        #ifndef _LIBCPP_NO_EXCEPTIONS
+            try
             {
         #endif // _LIBCPP_NO_EXCEPTIONS
                 __new_data = __alloc_traits::allocate(__alloc(), __target_capacity+1);
-        #ifndef _LIBCPP_NO_EXCEPTIONS 
+        #ifndef _LIBCPP_NO_EXCEPTIONS
+            }
+            catch (...)
+            {
+                return;
             }
-            catch (...) 
-            { 
-                return; 
-            } 
-        #else  // _LIBCPP_NO_EXCEPTIONS 
-            if (__new_data == nullptr) 
-                return; 
+        #else  // _LIBCPP_NO_EXCEPTIONS
+            if (__new_data == nullptr)
+                return;
         #endif // _LIBCPP_NO_EXCEPTIONS
         }
-        __now_long = true; 
-        __was_long = __is_long(); 
-        __p = __get_pointer(); 
-    } 
-    traits_type::copy(_VSTD::__to_address(__new_data), 
-                        _VSTD::__to_address(__p), size()+1); 
-    if (__was_long) 
-        __alloc_traits::deallocate(__alloc(), __p, __cap+1); 
-    if (__now_long) 
-    { 
+        __now_long = true;
+        __was_long = __is_long();
+        __p = __get_pointer();
+    }
+    traits_type::copy(_VSTD::__to_address(__new_data),
+                        _VSTD::__to_address(__p), size()+1);
+    if (__was_long)
+        __alloc_traits::deallocate(__alloc(), __p, __cap+1);
+    if (__now_long)
+    {
         __set_long_cap(__target_capacity+1);
-        __set_long_size(__sz); 
-        __set_long_pointer(__new_data); 
+        __set_long_size(__sz);
+        __set_long_pointer(__new_data);
     }
-    else 
-        __set_short_size(__sz); 
-    __invalidate_all_iterators(); 
-} 
+    else
+        __set_short_size(__sz);
+    __invalidate_all_iterators();
+}
 
 template <class _CharT, class _Traits, class _Allocator>
 inline
@@ -4458,8 +4458,8 @@ _LIBCPP_FUNC_VIS wstring to_wstring(long double __val);
 
 template<class _CharT, class _Traits, class _Allocator>
 _LIBCPP_TEMPLATE_DATA_VIS
-const typename basic_string<_CharT, _Traits, _Allocator>::size_type 
-               basic_string<_CharT, _Traits, _Allocator>::npos; 
+const typename basic_string<_CharT, _Traits, _Allocator>::size_type
+               basic_string<_CharT, _Traits, _Allocator>::npos;
 
 template <class _CharT, class _Allocator>
 struct _LIBCPP_TEMPLATE_VIS
@@ -4507,7 +4507,7 @@ getline(basic_istream<_CharT, _Traits>&& __is,
         basic_string<_CharT, _Traits, _Allocator>& __str);
 
 #if _LIBCPP_STD_VER > 17
-template <class _CharT, class _Traits, class _Allocator, class _Up> 
+template <class _CharT, class _Traits, class _Allocator, class _Up>
 inline _LIBCPP_INLINE_VISIBILITY
     typename basic_string<_CharT, _Traits, _Allocator>::size_type
     erase(basic_string<_CharT, _Traits, _Allocator>& __str, const _Up& __v) {
@@ -4516,7 +4516,7 @@ inline _LIBCPP_INLINE_VISIBILITY
   return __old_size - __str.size();
 }
 
-template <class _CharT, class _Traits, class _Allocator, class _Predicate> 
+template <class _CharT, class _Traits, class _Allocator, class _Predicate>
 inline _LIBCPP_INLINE_VISIBILITY
     typename basic_string<_CharT, _Traits, _Allocator>::size_type
     erase_if(basic_string<_CharT, _Traits, _Allocator>& __str,
diff --git a/contrib/libs/cxxsupp/libcxx/include/tuple b/contrib/libs/cxxsupp/libcxx/include/tuple
index 714d289b84..9b127953b3 100644
--- a/contrib/libs/cxxsupp/libcxx/include/tuple
+++ b/contrib/libs/cxxsupp/libcxx/include/tuple
@@ -308,7 +308,7 @@ public:
                   _And<
                     _IsNotSame<__uncvref_t<_Tp>, __tuple_leaf>,
                     is_constructible<_Hp, _Tp>
-                  >::value 
+                  >::value
                 >
             >
         _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
@@ -1202,8 +1202,8 @@ template <class _T1, class ..._Args>
 struct __find_exactly_one_checked {
     static constexpr bool __matches[sizeof...(_Args)] = {is_same<_T1, _Args>::value...};
     static constexpr size_t value = __find_detail::__find_idx(0, __matches);
-    static_assert(value != __not_found, "type not found in type list" ); 
-    static_assert(value != __ambiguous, "type occurs more than once in type list"); 
+    static_assert(value != __not_found, "type not found in type list" );
+    static_assert(value != __ambiguous, "type occurs more than once in type list");
 };
 
 template <class _T1>
@@ -1489,7 +1489,7 @@ struct __tuple_cat<tuple<_Types...>, __tuple_indices<_I0...>, __tuple_indices<_J
     {
         return _VSTD::forward_as_tuple(
             _VSTD::forward<_Types>(_VSTD::get<_I0>(__t))...,
-            _VSTD::get<_J0>(_VSTD::forward<_Tuple0>(__t0))...); 
+            _VSTD::get<_J0>(_VSTD::forward<_Tuple0>(__t0))...);
     }
 
     template <class _Tuple0, class _Tuple1, class ..._Tuples>
@@ -1507,7 +1507,7 @@ struct __tuple_cat<tuple<_Types...>, __tuple_indices<_I0...>, __tuple_indices<_J
                                           tuple_size<_T0>::value>::type,
             typename __make_tuple_indices<tuple_size<_T1>::value>::type>()(
             _VSTD::forward_as_tuple(
-                _VSTD::forward<_Types>(_VSTD::get<_I0>(__t))..., 
+                _VSTD::forward<_Types>(_VSTD::get<_I0>(__t))...,
                 _VSTD::get<_J0>(_VSTD::forward<_Tuple0>(__t0))...),
             _VSTD::forward<_Tuple1>(__t1), _VSTD::forward<_Tuples>(__tpls)...);
     }
diff --git a/contrib/libs/cxxsupp/libcxx/include/type_traits b/contrib/libs/cxxsupp/libcxx/include/type_traits
index 258fdcc667..8c91522074 100644
--- a/contrib/libs/cxxsupp/libcxx/include/type_traits
+++ b/contrib/libs/cxxsupp/libcxx/include/type_traits
@@ -160,7 +160,7 @@ namespace std
     template <size_t Len, size_t Align = most_stringent_alignment_requirement>
         struct aligned_storage;
     template <size_t Len, class... Types> struct aligned_union;
-    template <class T> struct remove_cvref; // C++20 
+    template <class T> struct remove_cvref; // C++20
 
     template <class T> struct decay;
     template <class... T> struct common_type;
@@ -4188,7 +4188,7 @@ struct __can_extract_key
                   __extract_key_fail_tag>::type {};
 
 template <class _Pair, class _Key, class _First, class _Second>
-struct __can_extract_key<_Pair, _Key, pair<_First, _Second> > 
+struct __can_extract_key<_Pair, _Key, pair<_First, _Second> >
     : conditional<_IsSame<typename remove_const<_First>::type, _Key>::value,
                   __extract_key_first_tag, __extract_key_fail_tag>::type {};
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/typeinfo b/contrib/libs/cxxsupp/libcxx/include/typeinfo
index e8908cb91d..80c938646b 100644
--- a/contrib/libs/cxxsupp/libcxx/include/typeinfo
+++ b/contrib/libs/cxxsupp/libcxx/include/typeinfo
@@ -279,7 +279,7 @@ struct __type_info_implementations {
     static bool __is_type_name_unique(__type_name_t __lhs) _NOEXCEPT {
       return !(__lhs & __non_unique_rtti_bit::value);
     }
-  }; 
+  };
 
   typedef
 #if _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION == 1
@@ -296,10 +296,10 @@ struct __type_info_implementations {
 
 class _LIBCPP_EXCEPTION_ABI type_info
 {
-  type_info& operator=(const type_info&); 
-  type_info(const type_info&); 
+  type_info& operator=(const type_info&);
+  type_info(const type_info&);
 
- protected: 
+ protected:
     typedef __type_info_implementations::__impl __impl;
 
     __impl::__type_name_t __type_name;
@@ -354,10 +354,10 @@ public:
       return "std::bad_cast";
     }
 #else
-  bad_cast() _NOEXCEPT; 
-  bad_cast(const bad_cast&) _NOEXCEPT = default; 
-  virtual ~bad_cast() _NOEXCEPT; 
-  virtual const char* what() const _NOEXCEPT; 
+  bad_cast() _NOEXCEPT;
+  bad_cast(const bad_cast&) _NOEXCEPT = default;
+  virtual ~bad_cast() _NOEXCEPT;
+  virtual const char* what() const _NOEXCEPT;
 #endif
 };
 
@@ -373,9 +373,9 @@ public:
       return "std::bad_typeid";
     }
 #else
-  bad_typeid() _NOEXCEPT; 
-  virtual ~bad_typeid() _NOEXCEPT; 
-  virtual const char* what() const _NOEXCEPT; 
+  bad_typeid() _NOEXCEPT;
+  virtual ~bad_typeid() _NOEXCEPT;
+  virtual const char* what() const _NOEXCEPT;
 #endif
 };
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/unordered_map b/contrib/libs/cxxsupp/libcxx/include/unordered_map
index 8d95bee83d..417180a530 100644
--- a/contrib/libs/cxxsupp/libcxx/include/unordered_map
+++ b/contrib/libs/cxxsupp/libcxx/include/unordered_map
@@ -79,12 +79,12 @@ public:
       unordered_map(InputIterator f, InputIterator l, size_type n, const allocator_type& a)
       : unordered_map(f, l, n, hasher(), key_equal(), a) {}  // C++14
     template <class InputIterator>
-      unordered_map(InputIterator f, InputIterator l, size_type n, const hasher& hf, 
+      unordered_map(InputIterator f, InputIterator l, size_type n, const hasher& hf,
         const allocator_type& a)
       : unordered_map(f, l, n, hf, key_equal(), a) {}  // C++14
     unordered_map(initializer_list<value_type> il, size_type n, const allocator_type& a)
       : unordered_map(il, n, hasher(), key_equal(), a) {}  // C++14
-    unordered_map(initializer_list<value_type> il, size_type n, const hasher& hf, 
+    unordered_map(initializer_list<value_type> il, size_type n, const hasher& hf,
       const allocator_type& a)
       : unordered_map(il, n, hf, key_equal(), a) {}  // C++14
     ~unordered_map();
@@ -290,12 +290,12 @@ public:
       unordered_multimap(InputIterator f, InputIterator l, size_type n, const allocator_type& a)
       : unordered_multimap(f, l, n, hasher(), key_equal(), a) {}  // C++14
     template <class InputIterator>
-      unordered_multimap(InputIterator f, InputIterator l, size_type n, const hasher& hf, 
+      unordered_multimap(InputIterator f, InputIterator l, size_type n, const hasher& hf,
         const allocator_type& a)
       : unordered_multimap(f, l, n, hf, key_equal(), a) {}  // C++14
     unordered_multimap(initializer_list<value_type> il, size_type n, const allocator_type& a)
       : unordered_multimap(il, n, hasher(), key_equal(), a) {}  // C++14
-    unordered_multimap(initializer_list<value_type> il, size_type n, const hasher& hf, 
+    unordered_multimap(initializer_list<value_type> il, size_type n, const hasher& hf,
       const allocator_type& a)
       : unordered_multimap(il, n, hf, key_equal(), a) {}  // C++14
     ~unordered_multimap();
@@ -937,11 +937,11 @@ public:
                   "Invalid allocator::value_type");
 
 private:
-    typedef __hash_value_type<key_type, mapped_type>                          __value_type; 
+    typedef __hash_value_type<key_type, mapped_type>                          __value_type;
     typedef __unordered_map_hasher<key_type, __value_type, hasher, key_equal> __hasher;
     typedef __unordered_map_equal<key_type, __value_type, key_equal, hasher>  __key_equal;
     typedef typename __rebind_alloc_helper<allocator_traits<allocator_type>,
-                                                 __value_type>::type          __allocator_type; 
+                                                 __value_type>::type          __allocator_type;
 
     typedef __hash_table<__value_type, __hasher,
                          __key_equal,  __allocator_type>   __table;
@@ -1034,14 +1034,14 @@ public:
       : unordered_map(__first, __last, __n, hasher(), key_equal(), __a) {}
     template <class _InputIterator>
     _LIBCPP_INLINE_VISIBILITY
-      unordered_map(_InputIterator __first, _InputIterator __last, size_type __n, const hasher& __hf, 
+      unordered_map(_InputIterator __first, _InputIterator __last, size_type __n, const hasher& __hf,
         const allocator_type& __a)
       : unordered_map(__first, __last, __n, __hf, key_equal(), __a) {}
     _LIBCPP_INLINE_VISIBILITY
     unordered_map(initializer_list<value_type> __il, size_type __n, const allocator_type& __a)
       : unordered_map(__il, __n, hasher(), key_equal(), __a) {}
     _LIBCPP_INLINE_VISIBILITY
-    unordered_map(initializer_list<value_type> __il, size_type __n, const hasher& __hf, 
+    unordered_map(initializer_list<value_type> __il, size_type __n, const hasher& __hf,
       const allocator_type& __a)
       : unordered_map(__il, __n, __hf, key_equal(), __a) {}
 #endif
@@ -1871,11 +1871,11 @@ public:
                   "Invalid allocator::value_type");
 
 private:
-    typedef __hash_value_type<key_type, mapped_type>                          __value_type; 
+    typedef __hash_value_type<key_type, mapped_type>                          __value_type;
     typedef __unordered_map_hasher<key_type, __value_type, hasher, key_equal> __hasher;
     typedef __unordered_map_equal<key_type, __value_type, key_equal, hasher>  __key_equal;
     typedef typename __rebind_alloc_helper<allocator_traits<allocator_type>,
-                                                 __value_type>::type          __allocator_type; 
+                                                 __value_type>::type          __allocator_type;
 
     typedef __hash_table<__value_type, __hasher,
                          __key_equal,  __allocator_type>   __table;
@@ -1966,14 +1966,14 @@ public:
       : unordered_multimap(__first, __last, __n, hasher(), key_equal(), __a) {}
     template <class _InputIterator>
     _LIBCPP_INLINE_VISIBILITY
-      unordered_multimap(_InputIterator __first, _InputIterator __last, size_type __n, const hasher& __hf, 
+      unordered_multimap(_InputIterator __first, _InputIterator __last, size_type __n, const hasher& __hf,
         const allocator_type& __a)
       : unordered_multimap(__first, __last, __n, __hf, key_equal(), __a) {}
     _LIBCPP_INLINE_VISIBILITY
     unordered_multimap(initializer_list<value_type> __il, size_type __n, const allocator_type& __a)
       : unordered_multimap(__il, __n, hasher(), key_equal(), __a) {}
     _LIBCPP_INLINE_VISIBILITY
-    unordered_multimap(initializer_list<value_type> __il, size_type __n, const hasher& __hf, 
+    unordered_multimap(initializer_list<value_type> __il, size_type __n, const hasher& __hf,
       const allocator_type& __a)
       : unordered_multimap(__il, __n, __hf, key_equal(), __a) {}
 #endif
diff --git a/contrib/libs/cxxsupp/libcxx/include/unordered_set b/contrib/libs/cxxsupp/libcxx/include/unordered_set
index 25432030bf..5856e4bc40 100644
--- a/contrib/libs/cxxsupp/libcxx/include/unordered_set
+++ b/contrib/libs/cxxsupp/libcxx/include/unordered_set
@@ -75,7 +75,7 @@ public:
     template <class InputIterator>
       unordered_set(InputIterator f, InputIterator l, size_type n, const allocator_type& a); // C++14
     template <class InputIterator>
-      unordered_set(InputIterator f, InputIterator l, size_type n, 
+      unordered_set(InputIterator f, InputIterator l, size_type n,
                     const hasher& hf,  const allocator_type& a); // C++14
     unordered_set(initializer_list<value_type> il, size_type n, const allocator_type& a); // C++14
     unordered_set(initializer_list<value_type> il, size_type n,
@@ -255,7 +255,7 @@ public:
       unordered_multiset(InputIterator f, InputIterator l, size_type n,
                          const hasher& hf, const allocator_type& a); // C++14
     unordered_multiset(initializer_list<value_type> il, size_type n, const allocator_type& a); // C++14
-    unordered_multiset(initializer_list<value_type> il, size_type n, 
+    unordered_multiset(initializer_list<value_type> il, size_type n,
                        const hasher& hf,  const allocator_type& a); // C++14
     ~unordered_multiset();
     unordered_multiset& operator=(const unordered_multiset&);
@@ -481,11 +481,11 @@ public:
 #if _LIBCPP_STD_VER > 11
     template <class _InputIterator>
     inline _LIBCPP_INLINE_VISIBILITY
-        unordered_set(_InputIterator __first, _InputIterator __last, 
+        unordered_set(_InputIterator __first, _InputIterator __last,
                     size_type __n, const allocator_type& __a)
             : unordered_set(__first, __last, __n, hasher(), key_equal(), __a) {}
     template <class _InputIterator>
-        unordered_set(_InputIterator __first, _InputIterator __last, 
+        unordered_set(_InputIterator __first, _InputIterator __last,
                       size_type __n, const hasher& __hf, const allocator_type& __a)
             : unordered_set(__first, __last, __n, __hf, key_equal(), __a) {}
 #endif
@@ -511,7 +511,7 @@ public:
                                                       const allocator_type& __a)
         : unordered_set(__il, __n, hasher(), key_equal(), __a) {}
     inline _LIBCPP_INLINE_VISIBILITY
-    unordered_set(initializer_list<value_type> __il, size_type __n, 
+    unordered_set(initializer_list<value_type> __il, size_type __n,
                                   const hasher& __hf, const allocator_type& __a)
         : unordered_set(__il, __n, __hf, key_equal(), __a) {}
 #endif
@@ -1177,7 +1177,7 @@ public:
 #if _LIBCPP_STD_VER > 11
     template <class _InputIterator>
     inline _LIBCPP_INLINE_VISIBILITY
-    unordered_multiset(_InputIterator __first, _InputIterator __last, 
+    unordered_multiset(_InputIterator __first, _InputIterator __last,
                        size_type __n, const allocator_type& __a)
         : unordered_multiset(__first, __last, __n, hasher(), key_equal(), __a) {}
     template <class _InputIterator>
diff --git a/contrib/libs/cxxsupp/libcxx/include/use_ansi.h b/contrib/libs/cxxsupp/libcxx/include/use_ansi.h
index 5e58ddbf7a..2b6f36d4ef 100644
--- a/contrib/libs/cxxsupp/libcxx/include/use_ansi.h
+++ b/contrib/libs/cxxsupp/libcxx/include/use_ansi.h
@@ -1,3 +1,3 @@
-// Empty header to prevent MSVC one from inclusion. 
-// This MSVC header adds Microsoft STL to the linker arguments 
+// Empty header to prevent MSVC one from inclusion.
+// This MSVC header adds Microsoft STL to the linker arguments
 // which causes conflicts with libc++.
\ No newline at end of file
diff --git a/contrib/libs/cxxsupp/libcxx/include/variant b/contrib/libs/cxxsupp/libcxx/include/variant
index fb3ca8c220..972c18a811 100644
--- a/contrib/libs/cxxsupp/libcxx/include/variant
+++ b/contrib/libs/cxxsupp/libcxx/include/variant
@@ -814,7 +814,7 @@ class _LIBCPP_TEMPLATE_VIS __dtor;
 #define _LIBCPP_VARIANT_DESTRUCTOR(destructible_trait, destructor, destroy)    \
   template <class... _Types>                                                   \
   class _LIBCPP_TEMPLATE_VIS __dtor<__traits<_Types...>,                       \
-                                    destructible_trait>                        \ 
+                                    destructible_trait>                        \
       : public __base<destructible_trait, _Types...> {                         \
     using __base_type = __base<destructible_trait, _Types...>;                 \
     using __index_t = typename __base_type::__index_t;                         \
@@ -902,8 +902,8 @@ class _LIBCPP_TEMPLATE_VIS __move_constructor;
 #define _LIBCPP_VARIANT_MOVE_CONSTRUCTOR(move_constructible_trait,             \
                                          move_constructor)                     \
   template <class... _Types>                                                   \
-  class _LIBCPP_TEMPLATE_VIS __move_constructor<__traits<_Types...>,           \ 
-                                                move_constructible_trait>      \ 
+  class _LIBCPP_TEMPLATE_VIS __move_constructor<__traits<_Types...>,           \
+                                                move_constructible_trait>      \
       : public __ctor<__traits<_Types...>> {                                   \
     using __base_type = __ctor<__traits<_Types...>>;                           \
                                                                                \
@@ -1247,7 +1247,7 @@ struct __make_overloads_imp<__tuple_indices<_Idx...>, _Types... > {
   using _Apply _LIBCPP_NODEBUG = __all_overloads<__overload<_Types, _Idx>...>;
 };
 
-template <class ..._Types> 
+template <class ..._Types>
 using _MakeOverloads _LIBCPP_NODEBUG = typename __make_overloads_imp<
     __make_indices_imp<_Sizeof<_Types...>::value, 0>, _Types...>::_Apply;
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/vector b/contrib/libs/cxxsupp/libcxx/include/vector
index 3aa03b949d..c02253c751 100644
--- a/contrib/libs/cxxsupp/libcxx/include/vector
+++ b/contrib/libs/cxxsupp/libcxx/include/vector
@@ -496,8 +496,8 @@ public:
     typedef typename __base::pointer                 iterator;
     typedef typename __base::const_pointer           const_iterator;
 #else
-    typedef __wrap_iter<pointer>                     iterator; 
-    typedef __wrap_iter<const_pointer>               const_iterator; 
+    typedef __wrap_iter<pointer>                     iterator;
+    typedef __wrap_iter<const_pointer>               const_iterator;
 #endif
     typedef _VSTD::reverse_iterator<iterator>         reverse_iterator;
     typedef _VSTD::reverse_iterator<const_iterator>   const_reverse_iterator;
@@ -921,7 +921,7 @@ private:
 
   struct _ConstructTransaction {
     explicit _ConstructTransaction(vector &__v, size_type __n)
-      : __v_(__v),  __pos_(__v.__end_), __new_end_(__v.__end_ + __n) { 
+      : __v_(__v),  __pos_(__v.__end_), __new_end_(__v.__end_ + __n) {
 #ifndef _LIBCPP_HAS_NO_ASAN
       __v_.__annotate_increase(__n);
 #endif
@@ -938,7 +938,7 @@ private:
     vector &__v_;
     pointer __pos_;
     const_pointer const __new_end_;
- 
+
   private:
     _ConstructTransaction(_ConstructTransaction const&) = delete;
     _ConstructTransaction& operator=(_ConstructTransaction const&) = delete;
@@ -1085,7 +1085,7 @@ vector<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x)
     _ConstructTransaction __tx(*this, __n);
     const_pointer __new_end = __tx.__new_end_;
     for (pointer __pos = __tx.__pos_; __pos != __new_end; __tx.__pos_ = ++__pos) {
-        __alloc_traits::construct(this->__alloc(), _VSTD::__to_address(__pos), __x); 
+        __alloc_traits::construct(this->__alloc(), _VSTD::__to_address(__pos), __x);
     }
 }
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/wctype.h b/contrib/libs/cxxsupp/libcxx/include/wctype.h
index 43a79f203d..e6f813b8b1 100644
--- a/contrib/libs/cxxsupp/libcxx/include/wctype.h
+++ b/contrib/libs/cxxsupp/libcxx/include/wctype.h
@@ -68,7 +68,7 @@ wctrans_t wctrans(const char* property);
 // of these declarations (e.g. <wchar.h>), the second `using ::wint_t` with using_if_exists
 // will fail because it does not refer to the same declaration.
 #if __has_include_next(<wctype.h>)
-#   include_next <wctype.h> 
+#   include_next <wctype.h>
 #   define _LIBCPP_INCLUDED_C_LIBRARY_WCTYPE_H
 #endif
 #endif
diff --git a/contrib/libs/cxxsupp/libcxx/src/atomic.cpp b/contrib/libs/cxxsupp/libcxx/src/atomic.cpp
index db7fb0dabe..9ae1fb5199 100644
--- a/contrib/libs/cxxsupp/libcxx/src/atomic.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/atomic.cpp
@@ -51,11 +51,11 @@ static void __libcpp_platform_wake_by_address(__cxx_atomic_contention_t const vo
 #elif defined(__APPLE__) && defined(_LIBCPP_USE_ULOCK)
 
 extern "C" int __ulock_wait(uint32_t operation, void *addr, uint64_t value,
-		uint32_t timeout); /* timeout is specified in microseconds */ 
+		uint32_t timeout); /* timeout is specified in microseconds */
 extern "C" int __ulock_wake(uint32_t operation, void *addr, uint64_t wake_value);
 
-#define UL_COMPARE_AND_WAIT				1 
-#define ULF_WAKE_ALL					0x00000100 
+#define UL_COMPARE_AND_WAIT				1
+#define ULF_WAKE_ALL					0x00000100
 
 static void __libcpp_platform_wait_on_address(__cxx_atomic_contention_t const volatile* __ptr,
                                               __cxx_contention_t __val)
diff --git a/contrib/libs/cxxsupp/libcxx/src/chrono.cpp b/contrib/libs/cxxsupp/libcxx/src/chrono.cpp
index 80fbadbab3..b18e4f7cb9 100644
--- a/contrib/libs/cxxsupp/libcxx/src/chrono.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/chrono.cpp
@@ -244,9 +244,9 @@ static steady_clock::time_point __libcpp_steady_clock_now() {
 static LARGE_INTEGER
 __QueryPerformanceFrequency()
 {
-    LARGE_INTEGER val; 
-    (void) QueryPerformanceFrequency(&val); 
-    return val; 
+    LARGE_INTEGER val;
+    (void) QueryPerformanceFrequency(&val);
+    return val;
 }
 
 static steady_clock::time_point __libcpp_steady_clock_now() {
diff --git a/contrib/libs/cxxsupp/libcxx/src/debug.cpp b/contrib/libs/cxxsupp/libcxx/src/debug.cpp
index 307030eb77..dd5963fcce 100644
--- a/contrib/libs/cxxsupp/libcxx/src/debug.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/debug.cpp
@@ -200,7 +200,7 @@ __libcpp_db::__insert_c(void* __c, __libcpp_db::_InsertConstruct *__fn)
     __c_node* p = __cbeg_[hc];
     void *buf = malloc(sizeof(__c_node));
     if (buf == nullptr)
-      __throw_bad_alloc(); 
+      __throw_bad_alloc();
     __cbeg_[hc] = __fn(buf, __c, p);
 
     ++__csz_;
diff --git a/contrib/libs/cxxsupp/libcxx/src/filesystem/directory_iterator.cpp b/contrib/libs/cxxsupp/libcxx/src/filesystem/directory_iterator.cpp
index 8ae51419dd..a098dd163b 100644
--- a/contrib/libs/cxxsupp/libcxx/src/filesystem/directory_iterator.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/filesystem/directory_iterator.cpp
@@ -153,16 +153,16 @@ public:
   bool assign() {
     if (!wcscmp(__data_.cFileName, L".") || !wcscmp(__data_.cFileName, L".."))
       return false;
-    // FIXME: Cache more of this 
-    //directory_entry::__cached_data cdata; 
-    //cdata.__type_ = get_file_type(__data_); 
-    //cdata.__size_ = get_file_size(__data_); 
-    //cdata.__write_time_ = get_write_time(__data_); 
-    __entry_.__assign_iter_entry( 
-        __root_ / __data_.cFileName, 
+    // FIXME: Cache more of this
+    //directory_entry::__cached_data cdata;
+    //cdata.__type_ = get_file_type(__data_);
+    //cdata.__size_ = get_file_size(__data_);
+    //cdata.__write_time_ = get_write_time(__data_);
+    __entry_.__assign_iter_entry(
+        __root_ / __data_.cFileName,
         directory_entry::__create_iter_result(detail::get_file_type(__data_)));
-    return true; 
-  } 
+    return true;
+  }
 
 private:
   error_code close() noexcept {
diff --git a/contrib/libs/cxxsupp/libcxx/src/filesystem/filesystem_common.h b/contrib/libs/cxxsupp/libcxx/src/filesystem/filesystem_common.h
index 4068f285c7..a5f5749783 100644
--- a/contrib/libs/cxxsupp/libcxx/src/filesystem/filesystem_common.h
+++ b/contrib/libs/cxxsupp/libcxx/src/filesystem/filesystem_common.h
@@ -19,11 +19,11 @@
 #include "filesystem"
 
 #if !defined(_LIBCPP_WIN32API)
-# include <unistd.h> 
-# include <sys/stat.h> 
-# include <sys/statvfs.h> 
-# include <sys/time.h> // for ::utimes as used in __last_write_time 
-# include <fcntl.h>    /* values for fchmodat */ 
+# include <unistd.h>
+# include <sys/stat.h>
+# include <sys/statvfs.h>
+# include <sys/time.h> // for ::utimes as used in __last_write_time
+# include <fcntl.h>    /* values for fchmodat */
 #endif
 
 #include "../include/apple_availability.h"
diff --git a/contrib/libs/cxxsupp/libcxx/src/filesystem/operations.cpp b/contrib/libs/cxxsupp/libcxx/src/filesystem/operations.cpp
index ee1e7c55e3..63593be223 100644
--- a/contrib/libs/cxxsupp/libcxx/src/filesystem/operations.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/filesystem/operations.cpp
@@ -24,18 +24,18 @@
 # define NOMINMAX
 # include <windows.h>
 #else
-# include <unistd.h> 
-# include <sys/stat.h> 
-# include <sys/statvfs.h> 
+# include <unistd.h>
+# include <sys/stat.h>
+# include <sys/statvfs.h>
 #endif
 #include <time.h>
 #include <fcntl.h> /* values for fchmodat */
 
 #if __has_include(<sys/sendfile.h>)
-# include <sys/sendfile.h> 
+# include <sys/sendfile.h>
 # define _LIBCPP_FILESYSTEM_USE_SENDFILE
 #elif defined(__APPLE__) || __has_include(<copyfile.h>)
-# include <copyfile.h> 
+# include <copyfile.h>
 # define _LIBCPP_FILESYSTEM_USE_COPYFILE
 #else
 # include "fstream"
@@ -43,11 +43,11 @@
 #endif
 
 #if !defined(CLOCK_REALTIME) && !defined(_LIBCPP_WIN32API)
-# include <sys/time.h> // for gettimeofday and timeval 
+# include <sys/time.h> // for gettimeofday and timeval
 #endif
 
 #if defined(__ELF__) && defined(_LIBCPP_LINK_RT_LIB)
-# pragma comment(lib, "rt") 
+# pragma comment(lib, "rt")
 #endif
 
 _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
diff --git a/contrib/libs/cxxsupp/libcxx/src/include/refstring.h b/contrib/libs/cxxsupp/libcxx/src/include/refstring.h
index f2ce0b6508..3edd240a5d 100644
--- a/contrib/libs/cxxsupp/libcxx/src/include/refstring.h
+++ b/contrib/libs/cxxsupp/libcxx/src/include/refstring.h
@@ -34,8 +34,8 @@
 #if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) || \
     defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__)
 #   define _LIBCPP_CHECK_FOR_GCC_EMPTY_STRING_STORAGE
-#   include <dlfcn.h> 
-#   include <mach-o/dyld.h> 
+#   include <dlfcn.h>
+#   include <mach-o/dyld.h>
 #endif
 
 _LIBCPP_BEGIN_NAMESPACE_STD
diff --git a/contrib/libs/cxxsupp/libcxx/src/ios.cpp b/contrib/libs/cxxsupp/libcxx/src/ios.cpp
index fd2cefc61e..a8a99015a9 100644
--- a/contrib/libs/cxxsupp/libcxx/src/ios.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/ios.cpp
@@ -145,11 +145,11 @@ int ios_base::__xindex_ = 0;
 template <typename _Tp>
 static size_t __ios_new_cap(size_t __req_size, size_t __current_cap)
 { // Precondition: __req_size > __current_cap
-	const size_t mx = std::numeric_limits<size_t>::max() / sizeof(_Tp); 
-	if (__req_size < mx/2) 
-		return _VSTD::max(2 * __current_cap, __req_size); 
-	else 
-		return mx; 
+	const size_t mx = std::numeric_limits<size_t>::max() / sizeof(_Tp);
+	if (__req_size < mx/2)
+		return _VSTD::max(2 * __current_cap, __req_size);
+	else
+		return mx;
 }
 
 int
diff --git a/contrib/libs/cxxsupp/libcxx/src/iostream.cpp b/contrib/libs/cxxsupp/libcxx/src/iostream.cpp
index 05f2efe54c..5c1f5ed9ee 100644
--- a/contrib/libs/cxxsupp/libcxx/src/iostream.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/iostream.cpp
@@ -156,8 +156,8 @@ static void force_locale_initialization() {
 
 class DoIOSInit {
 public:
-	DoIOSInit(); 
-	~DoIOSInit(); 
+	DoIOSInit();
+	~DoIOSInit();
 };
 
 DoIOSInit::DoIOSInit()
diff --git a/contrib/libs/cxxsupp/libcxx/src/locale.cpp b/contrib/libs/cxxsupp/libcxx/src/locale.cpp
index a989b5e716..42b5641b43 100644
--- a/contrib/libs/cxxsupp/libcxx/src/locale.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/locale.cpp
@@ -4761,7 +4761,7 @@ __check_grouping(const string& __grouping, unsigned* __g, unsigned* __g_end,
 {
 //  if the grouping pattern is empty _or_ there are no grouping bits, then do nothing
 //  we always have at least a single entry in [__g, __g_end); the end of the input sequence
-	if (__grouping.size() != 0 && __g_end - __g > 1) 
+	if (__grouping.size() != 0 && __g_end - __g > 1)
     {
         reverse(__g, __g_end);
         const char* __ig = __grouping.data();
diff --git a/contrib/libs/cxxsupp/libcxx/src/mutex.cpp b/contrib/libs/cxxsupp/libcxx/src/mutex.cpp
index 2701f5b33f..124d59bc64 100644
--- a/contrib/libs/cxxsupp/libcxx/src/mutex.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/mutex.cpp
@@ -204,10 +204,10 @@ _LIBCPP_SAFE_STATIC static __libcpp_condvar_t cv = _LIBCPP_CONDVAR_INITIALIZER;
 
 #ifdef _LIBCPP_ABI_MICROSOFT
 void __call_once(volatile std::atomic<once_flag::_State_type>& flag, void* arg,
-                 void (*func)(void*)) 
+                 void (*func)(void*))
 #else
 void __call_once(volatile once_flag::_State_type& flag, void* arg,
-                 void (*func)(void*)) 
+                 void (*func)(void*))
 #endif
 {
 #if defined(_LIBCPP_HAS_NO_THREADS)
diff --git a/contrib/libs/cxxsupp/libcxx/src/new.cpp b/contrib/libs/cxxsupp/libcxx/src/new.cpp
index 2cc06b9e9a..85afe3039e 100644
--- a/contrib/libs/cxxsupp/libcxx/src/new.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/new.cpp
@@ -12,15 +12,15 @@
 
 #if defined(_LIBCPP_ABI_MICROSOFT)
 #   if !defined(_LIBCPP_ABI_VCRUNTIME)
-#       include "support/runtime/new_handler_fallback.ipp" 
-#   endif 
+#       include "support/runtime/new_handler_fallback.ipp"
+#   endif
 #elif defined(LIBCXX_BUILDING_LIBCXXABI)
-#   include <cxxabi.h> 
+#   include <cxxabi.h>
 #elif defined(LIBCXX_BUILDING_LIBCXXRT)
-#   include <cxxabi.h> 
-#   include "support/runtime/new_handler_fallback.ipp" 
+#   include <cxxabi.h>
+#   include "support/runtime/new_handler_fallback.ipp"
 #elif defined(__GLIBCXX__)
-    // nothing to do 
+    // nothing to do
 #else
 #   include "support/runtime/new_handler_fallback.ipp"
 #endif
@@ -129,7 +129,7 @@ _LIBCPP_WEAK
 void
 operator delete(void* ptr) noexcept
 {
-        ::free(ptr); 
+        ::free(ptr);
 }
 
 _LIBCPP_WEAK
diff --git a/contrib/libs/cxxsupp/libcxx/src/optional.cpp b/contrib/libs/cxxsupp/libcxx/src/optional.cpp
index 81660f9f4b..39405bec12 100644
--- a/contrib/libs/cxxsupp/libcxx/src/optional.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/optional.cpp
@@ -31,9 +31,9 @@ class _LIBCPP_EXCEPTION_ABI _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS bad_optiona
     : public std::logic_error
 {
 public:
-	bad_optional_access() : std::logic_error("Bad optional Access") {} 
+	bad_optional_access() : std::logic_error("Bad optional Access") {}
 
-//	Get the key function ~bad_optional_access() into the dylib 
+//	Get the key function ~bad_optional_access() into the dylib
     virtual ~bad_optional_access() noexcept;
 };
 
diff --git a/contrib/libs/cxxsupp/libcxx/src/stdexcept.cpp b/contrib/libs/cxxsupp/libcxx/src/stdexcept.cpp
index 71f3c98886..f8f335f34a 100644
--- a/contrib/libs/cxxsupp/libcxx/src/stdexcept.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/stdexcept.cpp
@@ -11,7 +11,7 @@
 #include "string"
 #include "system_error"
 
- 
+
 #ifdef _LIBCPP_ABI_VCRUNTIME
 #include "support/runtime/stdexcept_vcruntime.ipp"
 #else
diff --git a/contrib/libs/cxxsupp/libcxx/src/string.cpp b/contrib/libs/cxxsupp/libcxx/src/string.cpp
index 083b828df4..c8dae34272 100644
--- a/contrib/libs/cxxsupp/libcxx/src/string.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/string.cpp
@@ -193,7 +193,7 @@ as_integer( const string& func, const wstring& s, size_t* idx, int base )
 
 // as_float
 
-template<typename V, typename S, typename F> 
+template<typename V, typename S, typename F>
 inline
 V
 as_float_helper(const string& func, const S& str, size_t* idx, F f )
diff --git a/contrib/libs/cxxsupp/libcxx/src/support/solaris/xlocale.cpp b/contrib/libs/cxxsupp/libcxx/src/support/solaris/xlocale.cpp
index e570201954..d25adcd21d 100644
--- a/contrib/libs/cxxsupp/libcxx/src/support/solaris/xlocale.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/support/solaris/xlocale.cpp
@@ -25,7 +25,7 @@ int iswxdigit_l(wint_t __c, locale_t __l) {
 
 // FIXME: This disregards the locale, which is Very Wrong
 #define vsnprintf_l(__s, __n, __l, __format, __va)  \
-    vsnprintf(__s, __n, __format, __va) 
+    vsnprintf(__s, __n, __format, __va)
 
 int snprintf_l(char *__s, size_t __n, locale_t __l, const char *__format, ...)
 {
diff --git a/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp b/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp
index 5c2f19fd84..11702a788b 100644
--- a/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp
@@ -42,13 +42,13 @@ int __libcpp_vasprintf( char **sptr, const char *__restrict format, va_list ap )
     return count;
 }
 
-// Returns >= 0: the number of wide characters found in the 
-// multi byte sequence src (of src_size_bytes), that fit in the buffer dst 
+// Returns >= 0: the number of wide characters found in the
+// multi byte sequence src (of src_size_bytes), that fit in the buffer dst
 // (of max_dest_chars elements size). The count returned excludes the
-// null terminator. When dst is NULL, no characters are copied 
+// null terminator. When dst is NULL, no characters are copied
 // and no "out" parameters are updated.
 // Returns (size_t) -1: an incomplete sequence encountered.
-// Leaves *src pointing the next character to convert or NULL 
+// Leaves *src pointing the next character to convert or NULL
 // if a null character was converted from *src.
 size_t mbsnrtowcs( wchar_t *__restrict dst, const char **__restrict src,
                    size_t src_size_bytes, size_t max_dest_chars, mbstate_t *__restrict ps )
@@ -105,7 +105,7 @@ size_t mbsnrtowcs( wchar_t *__restrict dst, const char **__restrict src,
 // Returns >= 0: the number of bytes in the sequence
 // converted from *src, excluding the null terminator.
 // Returns size_t(-1) if an error occurs, also sets errno.
-// If dst is NULL dst_size_bytes is ignored and no bytes are copied to dst 
+// If dst is NULL dst_size_bytes is ignored and no bytes are copied to dst
 // and no "out" parameters are updated.
 size_t wcsnrtombs( char *__restrict dst, const wchar_t **__restrict src,
                    size_t max_source_chars, size_t dst_size_bytes, mbstate_t *__restrict ps )
@@ -134,7 +134,7 @@ size_t wcsnrtombs( char *__restrict dst, const wchar_t **__restrict src,
             result = wcrtomb_s( &char_size, dst + dest_converted, dest_remaining, c, ps);
         else
             result = wcrtomb_s( &char_size, NULL, 0, c, ps);
-        // If result is zero there is no error and char_size contains the 
+        // If result is zero there is no error and char_size contains the
         // size of the multi-byte-sequence converted.
         // Otherwise result indicates an errno type error.
         if ( result == no_error ) {
diff --git a/contrib/libs/cxxsupp/libcxx/src/typeinfo.cpp b/contrib/libs/cxxsupp/libcxx/src/typeinfo.cpp
index 9da74c9e3b..baace5643c 100644
--- a/contrib/libs/cxxsupp/libcxx/src/typeinfo.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/typeinfo.cpp
@@ -49,7 +49,7 @@ size_t std::type_info::hash_code() const noexcept {
 #if (!defined(LIBCXX_BUILDING_LIBCXXABI) &&               \
      !defined(LIBCXX_BUILDING_LIBCXXRT) &&                \
      !defined(__GLIBCXX__) &&                             \
-     !defined(_LIBCPP_ABI_VCRUNTIME)) ||                  \ 
+     !defined(_LIBCPP_ABI_VCRUNTIME)) ||                  \
     defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY)
 std::type_info::~type_info()
 {
diff --git a/contrib/libs/cxxsupp/libcxx/ya.make b/contrib/libs/cxxsupp/libcxx/ya.make
index 961b31241d..15403fe6d5 100644
--- a/contrib/libs/cxxsupp/libcxx/ya.make
+++ b/contrib/libs/cxxsupp/libcxx/ya.make
@@ -56,16 +56,16 @@ ELSEIF (OS_IOS)
         contrib/libs/cxxsupp/builtins
     )
 ELSEIF (CLANG OR MUSL OR OS_DARWIN OR USE_LTO)
-    IF (ARCH_ARM7) 
-        # XXX: libcxxrt support for ARM is currently broken 
-        DEFAULT(CXX_RT "glibcxx_static") 
+    IF (ARCH_ARM7)
+        # XXX: libcxxrt support for ARM is currently broken
+        DEFAULT(CXX_RT "glibcxx_static")
         # ARM7 OS_SDK has old libstdc++ without aligned allocation support
         CFLAGS(
             GLOBAL -fno-aligned-new
         )
-    ELSE() 
-        DEFAULT(CXX_RT "libcxxrt") 
-    ENDIF() 
+    ELSE()
+        DEFAULT(CXX_RT "libcxxrt")
+    ENDIF()
     IF (MUSL)
         PEERDIR(
             contrib/libs/musl/include
@@ -118,8 +118,8 @@ ENDIF()
 
 DEFAULT(CXX_RT "default")
 
-DISABLE(NEED_GLIBCXX_CXX17_SHIMS) 
- 
+DISABLE(NEED_GLIBCXX_CXX17_SHIMS)
+
 IF (CXX_RT == "libcxxrt")
     PEERDIR(
         contrib/libs/cxxsupp/libcxxabi-parts
@@ -132,9 +132,9 @@ IF (CXX_RT == "libcxxrt")
     CFLAGS(
         GLOBAL -DLIBCXX_BUILDING_LIBCXXRT
     )
-    # These builtins are equivalent to clang -rtlib=compiler_rt and 
-    # are needed by potentially any code generated by clang. 
-    # With glibcxx runtime, builtins are provided by libgcc 
+    # These builtins are equivalent to clang -rtlib=compiler_rt and
+    # are needed by potentially any code generated by clang.
+    # With glibcxx runtime, builtins are provided by libgcc
 ELSEIF (CXX_RT == "glibcxx" OR CXX_RT == "glibcxx_static")
     LDFLAGS(
         -Wl,-Bstatic
@@ -142,9 +142,9 @@ ELSEIF (CXX_RT == "glibcxx" OR CXX_RT == "glibcxx_static")
         -lgcc
         -lgcc_eh
         -Wl,-Bdynamic
-    ) 
+    )
     CXXFLAGS(-D__GLIBCXX__=1)
-    ENABLE(NEED_GLIBCXX_CXX17_SHIMS) 
+    ENABLE(NEED_GLIBCXX_CXX17_SHIMS)
     CFLAGS(
         GLOBAL -DLIBCXX_BUILDING_LIBGCC
     )
@@ -157,7 +157,7 @@ ELSEIF (CXX_RT == "glibcxx_dynamic")
     CFLAGS(
         GLOBAL -DLIBCXX_BUILDING_LIBGCC
     )
-    ENABLE(NEED_GLIBCXX_CXX17_SHIMS) 
+    ENABLE(NEED_GLIBCXX_CXX17_SHIMS)
 ELSEIF (CXX_RT == "glibcxx_driver")
     CXXFLAGS(-D__GLIBCXX__=1)
 ELSEIF (CXX_RT == "default")
@@ -166,17 +166,17 @@ ELSE()
     MESSAGE(FATAL_ERROR "Unexpected CXX_RT value: ${CXX_RT}")
 ENDIF()
 
-IF (NEED_GLIBCXX_CXX17_SHIMS) 
-    IF (GCC) 
-        # Assume GCC is bundled with a modern enough version of C++ runtime 
+IF (NEED_GLIBCXX_CXX17_SHIMS)
+    IF (GCC)
+        # Assume GCC is bundled with a modern enough version of C++ runtime
     ELSEIF (OS_SDK == "ubuntu-12" OR OS_SDK == "ubuntu-14" OR OS_SDK == "ubuntu-16")
-        # Prior to ubuntu-18, system C++ runtime for C++17 is incomplete 
+        # Prior to ubuntu-18, system C++ runtime for C++17 is incomplete
         SRCS(
             glibcxx_eh_cxx17.cpp
         )
-    ENDIF() 
-ENDIF() 
- 
+    ENDIF()
+ENDIF()
+
 NO_UTIL()
 
 NO_RUNTIME()
diff --git a/contrib/libs/cxxsupp/libcxxabi/src/demangle/ItaniumDemangle.h b/contrib/libs/cxxsupp/libcxxabi/src/demangle/ItaniumDemangle.h
index 677ce6b24e..85e1511346 100644
--- a/contrib/libs/cxxsupp/libcxxabi/src/demangle/ItaniumDemangle.h
+++ b/contrib/libs/cxxsupp/libcxxabi/src/demangle/ItaniumDemangle.h
@@ -111,125 +111,125 @@
 DEMANGLE_NAMESPACE_BEGIN
 
 template <class T, size_t N> class PODSmallVector {
-  static_assert(std::is_pod<T>::value, 
-                "T is required to be a plain old data type"); 
- 
+  static_assert(std::is_pod<T>::value,
+                "T is required to be a plain old data type");
+
   T *First = nullptr;
   T *Last = nullptr;
   T *Cap = nullptr;
-  T Inline[N] = {0}; 
- 
-  bool isInline() const { return First == Inline; } 
- 
-  void clearInline() { 
-    First = Inline; 
-    Last = Inline; 
-    Cap = Inline + N; 
-  } 
- 
-  void reserve(size_t NewCap) { 
-    size_t S = size(); 
-    if (isInline()) { 
+  T Inline[N] = {0};
+
+  bool isInline() const { return First == Inline; }
+
+  void clearInline() {
+    First = Inline;
+    Last = Inline;
+    Cap = Inline + N;
+  }
+
+  void reserve(size_t NewCap) {
+    size_t S = size();
+    if (isInline()) {
       auto *Tmp = static_cast<T *>(std::malloc(NewCap * sizeof(T)));
-      if (Tmp == nullptr) 
-        std::terminate(); 
-      std::copy(First, Last, Tmp); 
-      First = Tmp; 
-    } else { 
+      if (Tmp == nullptr)
+        std::terminate();
+      std::copy(First, Last, Tmp);
+      First = Tmp;
+    } else {
       First = static_cast<T *>(std::realloc(First, NewCap * sizeof(T)));
-      if (First == nullptr) 
-        std::terminate(); 
-    } 
-    Last = First + S; 
-    Cap = First + NewCap; 
-  } 
- 
-public: 
-  PODSmallVector() : First(Inline), Last(First), Cap(Inline + N) {} 
- 
+      if (First == nullptr)
+        std::terminate();
+    }
+    Last = First + S;
+    Cap = First + NewCap;
+  }
+
+public:
+  PODSmallVector() : First(Inline), Last(First), Cap(Inline + N) {}
+
   PODSmallVector(const PODSmallVector &) = delete;
   PODSmallVector &operator=(const PODSmallVector &) = delete;
- 
+
   PODSmallVector(PODSmallVector &&Other) : PODSmallVector() {
-    if (Other.isInline()) { 
-      std::copy(Other.begin(), Other.end(), First); 
-      Last = First + Other.size(); 
-      Other.clear(); 
-      return; 
-    } 
- 
-    First = Other.First; 
-    Last = Other.Last; 
-    Cap = Other.Cap; 
-    Other.clearInline(); 
-  } 
- 
+    if (Other.isInline()) {
+      std::copy(Other.begin(), Other.end(), First);
+      Last = First + Other.size();
+      Other.clear();
+      return;
+    }
+
+    First = Other.First;
+    Last = Other.Last;
+    Cap = Other.Cap;
+    Other.clearInline();
+  }
+
   PODSmallVector &operator=(PODSmallVector &&Other) {
-    if (Other.isInline()) { 
-      if (!isInline()) { 
-        std::free(First); 
-        clearInline(); 
-      } 
-      std::copy(Other.begin(), Other.end(), First); 
-      Last = First + Other.size(); 
-      Other.clear(); 
-      return *this; 
-    } 
- 
-    if (isInline()) { 
-      First = Other.First; 
-      Last = Other.Last; 
-      Cap = Other.Cap; 
-      Other.clearInline(); 
-      return *this; 
-    } 
- 
-    std::swap(First, Other.First); 
-    std::swap(Last, Other.Last); 
-    std::swap(Cap, Other.Cap); 
-    Other.clear(); 
-    return *this; 
-  } 
- 
+    if (Other.isInline()) {
+      if (!isInline()) {
+        std::free(First);
+        clearInline();
+      }
+      std::copy(Other.begin(), Other.end(), First);
+      Last = First + Other.size();
+      Other.clear();
+      return *this;
+    }
+
+    if (isInline()) {
+      First = Other.First;
+      Last = Other.Last;
+      Cap = Other.Cap;
+      Other.clearInline();
+      return *this;
+    }
+
+    std::swap(First, Other.First);
+    std::swap(Last, Other.Last);
+    std::swap(Cap, Other.Cap);
+    Other.clear();
+    return *this;
+  }
+
   // NOLINTNEXTLINE(readability-identifier-naming)
   void push_back(const T &Elem) {
-    if (Last == Cap) 
-      reserve(size() * 2); 
-    *Last++ = Elem; 
-  } 
- 
+    if (Last == Cap)
+      reserve(size() * 2);
+    *Last++ = Elem;
+  }
+
   // NOLINTNEXTLINE(readability-identifier-naming)
-  void pop_back() { 
-    assert(Last != First && "Popping empty vector!"); 
-    --Last; 
-  } 
- 
-  void dropBack(size_t Index) { 
-    assert(Index <= size() && "dropBack() can't expand!"); 
-    Last = First + Index; 
-  } 
- 
+  void pop_back() {
+    assert(Last != First && "Popping empty vector!");
+    --Last;
+  }
+
+  void dropBack(size_t Index) {
+    assert(Index <= size() && "dropBack() can't expand!");
+    Last = First + Index;
+  }
+
   T *begin() { return First; }
   T *end() { return Last; }
- 
-  bool empty() const { return First == Last; } 
-  size_t size() const { return static_cast<size_t>(Last - First); } 
+
+  bool empty() const { return First == Last; }
+  size_t size() const { return static_cast<size_t>(Last - First); }
   T &back() {
-    assert(Last != First && "Calling back() on empty vector!"); 
-    return *(Last - 1); 
-  } 
+    assert(Last != First && "Calling back() on empty vector!");
+    return *(Last - 1);
+  }
   T &operator[](size_t Index) {
-    assert(Index < size() && "Invalid access!"); 
-    return *(begin() + Index); 
-  } 
-  void clear() { Last = First; } 
- 
-  ~PODSmallVector() { 
-    if (!isInline()) 
-      std::free(First); 
-  } 
-}; 
- 
+    assert(Index < size() && "Invalid access!");
+    return *(begin() + Index);
+  }
+  void clear() { Last = First; }
+
+  ~PODSmallVector() {
+    if (!isInline())
+      std::free(First);
+  }
+};
+
 // Base class of all AST nodes. The AST is built by the parser, then is
 // traversed by the printLeft/Right functions to produce a demangled string.
 class Node {
@@ -648,14 +648,14 @@ class ReferenceType : public Node {
   // Dig through any refs to refs, collapsing the ReferenceTypes as we go. The
   // rule here is rvalue ref to rvalue ref collapses to a rvalue ref, and any
   // other combination collapses to a lvalue ref.
-  // 
+  //
   // A combination of a TemplateForwardReference and a back-ref Substitution
-  // from an ill-formed string may have created a cycle; use cycle detection to 
-  // avoid looping forever. 
+  // from an ill-formed string may have created a cycle; use cycle detection to
+  // avoid looping forever.
   std::pair<ReferenceKind, const Node *> collapse(OutputBuffer &OB) const {
     auto SoFar = std::make_pair(RK, Pointee);
-    // Track the chain of nodes for the Floyd's 'tortoise and hare' 
-    // cycle-detection algorithm, since getSyntaxNode(S) is impure 
+    // Track the chain of nodes for the Floyd's 'tortoise and hare'
+    // cycle-detection algorithm, since getSyntaxNode(S) is impure
     PODSmallVector<const Node *, 8> Prev;
     for (;;) {
       const Node *SN = SoFar.second->getSyntaxNode(OB);
@@ -664,14 +664,14 @@ class ReferenceType : public Node {
       auto *RT = static_cast<const ReferenceType *>(SN);
       SoFar.second = RT->Pointee;
       SoFar.first = std::min(SoFar.first, RT->RK);
- 
-      // The middle of Prev is the 'slow' pointer moving at half speed 
-      Prev.push_back(SoFar.second); 
-      if (Prev.size() > 1 && SoFar.second == Prev[(Prev.size() - 1) / 2]) { 
-        // Cycle detected 
-        SoFar.second = nullptr; 
-        break; 
-      } 
+
+      // The middle of Prev is the 'slow' pointer moving at half speed
+      Prev.push_back(SoFar.second);
+      if (Prev.size() > 1 && SoFar.second == Prev[(Prev.size() - 1) / 2]) {
+        // Cycle detected
+        SoFar.second = nullptr;
+        break;
+      }
     }
     return SoFar;
   }
@@ -692,8 +692,8 @@ public:
       return;
     SwapAndRestore<bool> SavePrinting(Printing, true);
     std::pair<ReferenceKind, const Node *> Collapsed = collapse(OB);
-    if (!Collapsed.second) 
-      return; 
+    if (!Collapsed.second)
+      return;
     Collapsed.second->printLeft(OB);
     if (Collapsed.second->hasArray(OB))
       OB += " ";
@@ -707,8 +707,8 @@ public:
       return;
     SwapAndRestore<bool> SavePrinting(Printing, true);
     std::pair<ReferenceKind, const Node *> Collapsed = collapse(OB);
-    if (!Collapsed.second) 
-      return; 
+    if (!Collapsed.second)
+      return;
     if (Collapsed.second->hasArray(OB) || Collapsed.second->hasFunction(OB))
       OB += ")";
     Collapsed.second->printRight(OB);
diff --git a/contrib/libs/cxxsupp/openmp/ya.make b/contrib/libs/cxxsupp/openmp/ya.make
index d95c6bfa39..2c64468375 100644
--- a/contrib/libs/cxxsupp/openmp/ya.make
+++ b/contrib/libs/cxxsupp/openmp/ya.make
@@ -35,7 +35,7 @@ IF (SANITIZER_TYPE == memory)
     )
 ENDIF()
 
-COMPILE_C_AS_CXX() 
+COMPILE_C_AS_CXX()
 
 CXXFLAGS(-fno-exceptions)
 
diff --git a/contrib/libs/cxxsupp/ya.make b/contrib/libs/cxxsupp/ya.make
index 65176002ad..6cd299ac8a 100644
--- a/contrib/libs/cxxsupp/ya.make
+++ b/contrib/libs/cxxsupp/ya.make
@@ -26,7 +26,7 @@ ENDIF()
 END()
 
 RECURSE(
-    libcxx 
+    libcxx
     libcxxabi
     libcxxrt
 )
diff --git a/contrib/libs/libc_compat/update.sh b/contrib/libs/libc_compat/update.sh
index 4c055b8b06..4cee160904 100755
--- a/contrib/libs/libc_compat/update.sh
+++ b/contrib/libs/libc_compat/update.sh
@@ -38,11 +38,11 @@ curl "https://raw.githubusercontent.com/openbsd/src/master/lib/libc/stdlib/reall
 > "collate.h"
 > "stdlib.h"
 > "unistd.h"
- 
-mkdir -p include/uchar 
-curl "https://git.musl-libc.org/cgit/musl/plain/include/uchar.h" --output "include/uchar/uchar.h" 
-# TODO: provide c16rtomb, mbrtoc16, c32rtomb, mbrtoc32 implementations for uchar 
-# if any code actually needs them 
+
+mkdir -p include/uchar
+curl "https://git.musl-libc.org/cgit/musl/plain/include/uchar.h" --output "include/uchar/uchar.h"
+# TODO: provide c16rtomb, mbrtoc16, c32rtomb, mbrtoc32 implementations for uchar
+# if any code actually needs them
 
 mkdir -p include/random/sys
 curl "https://git.musl-libc.org/cgit/musl/plain/include/sys/random.h" --output "include/random/sys/random.h"
diff --git a/contrib/libs/libiconv/dynamic/ya.make b/contrib/libs/libiconv/dynamic/ya.make
index 3e6c9f29d8..f3a979206c 100644
--- a/contrib/libs/libiconv/dynamic/ya.make
+++ b/contrib/libs/libiconv/dynamic/ya.make
@@ -1,24 +1,24 @@
 DYNAMIC_LIBRARY(iconv)
- 
+
 OWNER(
     g:contrib g:cpp-contrib
 )
- 
-VERSION(1.13) 
- 
-LICENSE( 
-    LGPL-2.0-only 
-    LGPL-2.0-or-later 
-) 
- 
-LICENSE_TEXTS(../.yandex_meta/licenses.list.txt) 
- 
+
+VERSION(1.13)
+
+LICENSE(
+    LGPL-2.0-only
+    LGPL-2.0-or-later
+)
+
+LICENSE_TEXTS(../.yandex_meta/licenses.list.txt)
+
 PROVIDES(libiconv)
 
-NO_RUNTIME() 
- 
+NO_RUNTIME()
+
 EXPORTS_SCRIPT(libiconv.exports)
- 
+
 DYNAMIC_LIBRARY_FROM(contrib/libs/libiconv/static)
 
-END() 
+END()
diff --git a/contrib/libs/libiconv/static/ya.make b/contrib/libs/libiconv/static/ya.make
index b11aef6f17..83009f7ed9 100644
--- a/contrib/libs/libiconv/static/ya.make
+++ b/contrib/libs/libiconv/static/ya.make
@@ -1,35 +1,35 @@
-OWNER( 
-    g:contrib 
-    g:cpp-contrib 
-) 
- 
-LIBRARY() 
- 
-VERSION(1.13) 
- 
-LICENSE( 
+OWNER(
+    g:contrib
+    g:cpp-contrib
+)
+
+LIBRARY()
+
+VERSION(1.13)
+
+LICENSE(
     LGPL-2.0-only AND
-    LGPL-2.0-or-later 
-) 
+    LGPL-2.0-or-later
+)
+
+LICENSE_TEXTS(../.yandex_meta/licenses.list.txt)
 
-LICENSE_TEXTS(../.yandex_meta/licenses.list.txt) 
- 
 PROVIDES(libiconv)
 
-NO_RUNTIME() 
- 
-NO_COMPILER_WARNINGS() 
- 
-IF (ARCADIA_ICONV_NOCJK) 
+NO_RUNTIME()
+
+NO_COMPILER_WARNINGS()
+
+IF (ARCADIA_ICONV_NOCJK)
     CFLAGS(
         -DARCADIA_ICONV_NOCJK
     )
-ENDIF() 
- 
-SRCDIR(contrib/libs/libiconv) 
-
-SRCS( 
-    iconv.c 
-) 
- 
-END() 
+ENDIF()
+
+SRCDIR(contrib/libs/libiconv)
+
+SRCS(
+    iconv.c
+)
+
+END()
diff --git a/contrib/libs/libiconv/ya.make b/contrib/libs/libiconv/ya.make
index 693908c78d..e7c4e35e4c 100644
--- a/contrib/libs/libiconv/ya.make
+++ b/contrib/libs/libiconv/ya.make
@@ -3,29 +3,29 @@ OWNER(
     g:cpp-contrib
 )
 
-LIBRARY() 
- 
+LIBRARY()
+
 VERSION(1.13)
 
 LICENSE(Service-Dll-Harness)
 
-WITHOUT_LICENSE_TEXTS() 
+WITHOUT_LICENSE_TEXTS()
 
 NO_RUNTIME()
 
-IF (USE_DYNAMIC_ICONV) 
-    PEERDIR( 
-        contrib/libs/libiconv/dynamic 
+IF (USE_DYNAMIC_ICONV)
+    PEERDIR(
+        contrib/libs/libiconv/dynamic
+    )
+ELSE()
+    PEERDIR(
+        contrib/libs/libiconv/static
     )
-ELSE() 
-    PEERDIR( 
-        contrib/libs/libiconv/static 
-    ) 
 ENDIF()
 
-END() 
+END()
 
-RECURSE( 
-    dynamic 
-    static 
-) 
+RECURSE(
+    dynamic
+    static
+)
diff --git a/contrib/libs/libidn/dynamic/ya.make b/contrib/libs/libidn/dynamic/ya.make
index f33f4ad69c..c307c1950f 100644
--- a/contrib/libs/libidn/dynamic/ya.make
+++ b/contrib/libs/libidn/dynamic/ya.make
@@ -4,19 +4,19 @@ OWNER(
 )
 
 DYNAMIC_LIBRARY(idn)
- 
+
 VERSION(1.9)
 
-LICENSE( 
-    Custom-Punycode 
-    Ietf 
-    LGPL-2.0-or-later 
-    LGPL-2.1-only 
-    LGPL-2.1-or-later 
-) 
+LICENSE(
+    Custom-Punycode
+    Ietf
+    LGPL-2.0-or-later
+    LGPL-2.1-only
+    LGPL-2.1-or-later
+)
+
+LICENSE_TEXTS(../.yandex_meta/licenses.list.txt)
 
-LICENSE_TEXTS(../.yandex_meta/licenses.list.txt) 
- 
 VERSION(1.9)
 
 PROVIDES(libidn)
diff --git a/contrib/libs/libidn/static/ya.make b/contrib/libs/libidn/static/ya.make
index de3988f8bd..a927d7918e 100644
--- a/contrib/libs/libidn/static/ya.make
+++ b/contrib/libs/libidn/static/ya.make
@@ -1,8 +1,8 @@
-OWNER( 
-    g:contrib 
-    g:cpp-contrib 
-) 
- 
+OWNER(
+    g:contrib
+    g:cpp-contrib
+)
+
 LIBRARY()
 
 LICENSE(
@@ -13,7 +13,7 @@ LICENSE(
     LGPL-2.1-or-later
 )
 
-LICENSE_TEXTS(../.yandex_meta/licenses.list.txt) 
+LICENSE_TEXTS(../.yandex_meta/licenses.list.txt)
 
 VERSION(1.9)
 
@@ -23,50 +23,50 @@ NO_RUNTIME()
 
 NO_COMPILER_WARNINGS()
 
-ADDINCL( 
-    contrib/libs/libidn 
-) 
+ADDINCL(
+    contrib/libs/libidn
+)
 
-CFLAGS( 
-    -DHAVE_CONFIG_H 
-) 
+CFLAGS(
+    -DHAVE_CONFIG_H
+)
 
-IF (OS_WINDOWS) 
-    CFLAGS( 
-        -DLIBIDN_EXPORTS 
+IF (OS_WINDOWS)
+    CFLAGS(
+        -DLIBIDN_EXPORTS
     )
-ENDIF() 
+ENDIF()
 
-IF (OS_ANDROID) 
+IF (OS_ANDROID)
     CFLAGS(
-        -DHAVE_LOCALE_H=1 
+        -DHAVE_LOCALE_H=1
     )
 ENDIF()
 
-SRCDIR(contrib/libs/libidn) 
+SRCDIR(contrib/libs/libidn)
 
-SRCS( 
-    idn-free.c 
-    idna.c 
-    nfkc.c 
-    pr29.c 
-    profiles.c 
-    punycode.c 
-    rfc3454.c 
-    strerror-idna.c 
-    strerror-pr29.c 
-    strerror-punycode.c 
-    strerror-stringprep.c 
-    strerror-tld.c 
-    stringprep.c 
-    tld.c 
-    tlds.c 
-    toutf8.c 
-    version.c 
-    strverscmp.c 
-    striconv.c 
-    c-strcasecmp.c 
-    c-ctype.c 
-) 
+SRCS(
+    idn-free.c
+    idna.c
+    nfkc.c
+    pr29.c
+    profiles.c
+    punycode.c
+    rfc3454.c
+    strerror-idna.c
+    strerror-pr29.c
+    strerror-punycode.c
+    strerror-stringprep.c
+    strerror-tld.c
+    stringprep.c
+    tld.c
+    tlds.c
+    toutf8.c
+    version.c
+    strverscmp.c
+    striconv.c
+    c-strcasecmp.c
+    c-ctype.c
+)
 
 END()
diff --git a/contrib/libs/libidn/ya.make b/contrib/libs/libidn/ya.make
index 5e50e9e245..678a813caa 100644
--- a/contrib/libs/libidn/ya.make
+++ b/contrib/libs/libidn/ya.make
@@ -1,13 +1,13 @@
-OWNER( 
-    g:contrib 
-    g:cpp-contrib 
-) 
- 
+OWNER(
+    g:contrib
+    g:cpp-contrib
+)
+
 LIBRARY()
 
 LICENSE(Service-Dll-Harness)
 
-WITHOUT_LICENSE_TEXTS() 
+WITHOUT_LICENSE_TEXTS()
 
 LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
 
@@ -17,19 +17,19 @@ NO_RUNTIME()
 
 NO_COMPILER_WARNINGS()
 
-IF (USE_DYNAMIC_IDN) 
+IF (USE_DYNAMIC_IDN)
     PEERDIR(
         contrib/libs/libidn/dynamic
     )
 ELSE()
-    PEERDIR( 
-        contrib/libs/libidn/static 
+    PEERDIR(
+        contrib/libs/libidn/static
     )
 ENDIF()
 
 END()
 
-RECURSE( 
-    dynamic 
-    static 
-) 
+RECURSE(
+    dynamic
+    static
+)
diff --git a/contrib/libs/llvm12/include/llvm/Config/config-android.h b/contrib/libs/llvm12/include/llvm/Config/config-android.h
index d6cfd4f30c..3dfe68c951 100644
--- a/contrib/libs/llvm12/include/llvm/Config/config-android.h
+++ b/contrib/libs/llvm12/include/llvm/Config/config-android.h
@@ -1,7 +1,7 @@
 #pragma once
- 
-#include "config-linux.h" 
- 
+
+#include "config-linux.h"
+
 #undef HAVE_BACKTRACE
 #undef HAVE_PTHREAD_GETNAME_NP
 #undef HAVE_PTHREAD_SETNAME_NP
diff --git a/contrib/libs/lz4/generated/lz4_ns.h b/contrib/libs/lz4/generated/lz4_ns.h
index e53d70960d..2dfbbf8ccc 100644
--- a/contrib/libs/lz4/generated/lz4_ns.h
+++ b/contrib/libs/lz4/generated/lz4_ns.h
@@ -13,7 +13,7 @@ namespace LZ4_NAMESPACE {
 #include "../lz4.c"
 
 struct TLZ4Methods ytbl = {
-    LZ4_compress_default, 
+    LZ4_compress_default,
 };
 
 }
diff --git a/contrib/libs/openssl/crypto/ya.make b/contrib/libs/openssl/crypto/ya.make
index d9d44d9370..3acfb0cac7 100644
--- a/contrib/libs/openssl/crypto/ya.make
+++ b/contrib/libs/openssl/crypto/ya.make
@@ -31,16 +31,16 @@ ADDINCL(
     contrib/libs/openssl/include
 )
 
-IF (OS_LINUX) 
-    IF (ARCH_ARM64) 
-        SET(LINUX_ARM64 yes) 
+IF (OS_LINUX)
+    IF (ARCH_ARM64)
+        SET(LINUX_ARM64 yes)
     ELSEIF (ARCH_ARM7)
-        SET(LINUX_ARMV7 yes) 
+        SET(LINUX_ARMV7 yes)
     ELSEIF (ARCH_X86_64)
-        SET(LINUX_X86_64 yes) 
-    ENDIF() 
-ENDIF() 
- 
+        SET(LINUX_X86_64 yes)
+    ENDIF()
+ENDIF()
+
 IF (OS_IOS)
     IF (ARCH_ARM64)
         SET(IOS_ARM64 yes)
@@ -110,7 +110,7 @@ IF (NOT IOS_I386 AND NOT ANDROID_I686 AND NOT WINDOWS_I686)
     )
 ENDIF()
 
-IF (NOT IOS_ARMV7 AND NOT ANDROID_ARMV7 AND NOT LINUX_ARMV7) 
+IF (NOT IOS_ARMV7 AND NOT ANDROID_ARMV7 AND NOT LINUX_ARMV7)
     CFLAGS(
         -DVPAES_ASM
     )
@@ -845,7 +845,7 @@ IF (NOT IOS_ARM64 AND NOT IOS_ARMV7)
     )
 ENDIF()
 
-IF (NOT IOS_ARMV7 AND NOT ANDROID_ARMV7 AND NOT LINUX_ARMV7) 
+IF (NOT IOS_ARMV7 AND NOT ANDROID_ARMV7 AND NOT LINUX_ARMV7)
     SRCS(
         aes/aes_core.c
     )
@@ -936,50 +936,50 @@ IF (OS_DARWIN AND ARCH_ARM64)
     )
 ENDIF()
 
-IF (OS_LINUX AND ARCH_ARM7) 
-    IF (CLANG) 
+IF (OS_LINUX AND ARCH_ARM7)
+    IF (CLANG)
         # XXX: This is a workarond for 'out of range immediate fixup value'
-        # error with clang integrated assembler: 
-        # https://github.com/openssl/openssl/issues/7878 
+        # error with clang integrated assembler:
+        # https://github.com/openssl/openssl/issues/7878
         CFLAGS(
             -mno-thumb
         )
-    ENDIF() 
-    CFLAGS( 
-        -DOPENSSL_PIC 
-        -DOPENSSL_BN_ASM_GF2m 
-        -DAES_ASM 
-        -DBSAES_ASM 
-        -DGHASH_ASM 
-    ) 
-    SRCS( 
-        ../asm/android/arm/crypto/ec/ecp_nistz256-armv4.S 
-        ../asm/android/arm/crypto/poly1305/poly1305-armv4.S 
-        ../asm/android/arm/crypto/armv4cpuid.S 
-        ../asm/android/arm/crypto/bn/armv4-mont.S 
-        ../asm/android/arm/crypto/bn/armv4-gf2m.S 
-        ../asm/android/arm/crypto/aes/aes-armv4.S 
-        ../asm/android/arm/crypto/aes/bsaes-armv7.S 
-        ../asm/android/arm/crypto/aes/aesv8-armx.S 
-        ../asm/android/arm/crypto/sha/keccak1600-armv4.S 
-        ../asm/android/arm/crypto/sha/sha256-armv4.S 
-        ../asm/android/arm/crypto/sha/sha512-armv4.S 
-        ../asm/android/arm/crypto/sha/sha1-armv4-large.S 
-        ../asm/android/arm/crypto/chacha/chacha-armv4.S 
-        ../asm/android/arm/crypto/modes/ghashv8-armx.S 
-        ../asm/android/arm/crypto/modes/ghash-armv4.S 
-        armcap.c 
-        bn/bn_asm.c 
-        camellia/camellia.c 
-        camellia/cmll_cbc.c 
-        dso/dso_dlfcn.c 
-        rand/rand_vms.c 
-        rc4/rc4_enc.c 
-        rc4/rc4_skey.c 
-        whrlpool/wp_block.c 
-    ) 
-ENDIF() 
- 
+    ENDIF()
+    CFLAGS(
+        -DOPENSSL_PIC
+        -DOPENSSL_BN_ASM_GF2m
+        -DAES_ASM
+        -DBSAES_ASM
+        -DGHASH_ASM
+    )
+    SRCS(
+        ../asm/android/arm/crypto/ec/ecp_nistz256-armv4.S
+        ../asm/android/arm/crypto/poly1305/poly1305-armv4.S
+        ../asm/android/arm/crypto/armv4cpuid.S
+        ../asm/android/arm/crypto/bn/armv4-mont.S
+        ../asm/android/arm/crypto/bn/armv4-gf2m.S
+        ../asm/android/arm/crypto/aes/aes-armv4.S
+        ../asm/android/arm/crypto/aes/bsaes-armv7.S
+        ../asm/android/arm/crypto/aes/aesv8-armx.S
+        ../asm/android/arm/crypto/sha/keccak1600-armv4.S
+        ../asm/android/arm/crypto/sha/sha256-armv4.S
+        ../asm/android/arm/crypto/sha/sha512-armv4.S
+        ../asm/android/arm/crypto/sha/sha1-armv4-large.S
+        ../asm/android/arm/crypto/chacha/chacha-armv4.S
+        ../asm/android/arm/crypto/modes/ghashv8-armx.S
+        ../asm/android/arm/crypto/modes/ghash-armv4.S
+        armcap.c
+        bn/bn_asm.c
+        camellia/camellia.c
+        camellia/cmll_cbc.c
+        dso/dso_dlfcn.c
+        rand/rand_vms.c
+        rc4/rc4_enc.c
+        rc4/rc4_skey.c
+        whrlpool/wp_block.c
+    )
+ENDIF()
+
 IF (OS_LINUX AND ARCH_AARCH64)
     SRCS(
         ../asm/aarch64/crypto/aes/aesv8-armx.S
diff --git a/contrib/libs/openssl/include/openssl/opensslconf.h b/contrib/libs/openssl/include/openssl/opensslconf.h
index 73af98ae42..ecc930a39f 100644
--- a/contrib/libs/openssl/include/openssl/opensslconf.h
+++ b/contrib/libs/openssl/include/openssl/opensslconf.h
@@ -20,8 +20,8 @@
 #   include "opensslconf-android-arm.h"
 #elif defined(__linux__) && defined(__aarch64__)
 #   include "opensslconf-linux_aarch64.h"
-#elif defined(__linux__) && defined(__arm__) 
-#   include "opensslconf-linux_arm.h" 
+#elif defined(__linux__) && defined(__arm__)
+#   include "opensslconf-linux_arm.h"
 #elif defined(_MSC_VER) && defined(_M_X64)
 #   include "opensslconf-win-x86_64.h"
 #elif defined(_MSC_VER) && defined(_M_IX86)
diff --git a/contrib/libs/openssl/ya.make b/contrib/libs/openssl/ya.make
index 68f24fee46..060d069785 100644
--- a/contrib/libs/openssl/ya.make
+++ b/contrib/libs/openssl/ya.make
@@ -28,16 +28,16 @@ ADDINCL(
     contrib/libs/openssl
 )
 
-IF (OS_LINUX) 
-    IF (ARCH_ARM64) 
-        SET(LINUX_ARM64 yes) 
+IF (OS_LINUX)
+    IF (ARCH_ARM64)
+        SET(LINUX_ARM64 yes)
     ELSEIF (ARCH_ARM7)
-        SET(LINUX_ARMV7 yes) 
+        SET(LINUX_ARMV7 yes)
     ELSEIF (ARCH_X86_64)
-        SET(LINUX_X86_64 yes) 
-    ENDIF() 
-ENDIF() 
- 
+        SET(LINUX_X86_64 yes)
+    ENDIF()
+ENDIF()
+
 IF (OS_IOS)
     IF (ARCH_ARM64)
         SET(IOS_ARM64 yes)
@@ -225,7 +225,7 @@ SRCS(
     ssl/tls_srp.c
 )
 
-IF (NOT IOS_ARMV7 AND NOT LINUX_ARMV7) 
+IF (NOT IOS_ARMV7 AND NOT LINUX_ARMV7)
     CFLAGS(
         -DVPAES_ASM
     )
@@ -238,7 +238,7 @@ IF (NOT IOS_ARM64 AND NOT IOS_ARMV7)
     )
 ENDIF()
 
-IF (OS_LINUX AND ARCH_ARM7 OR OS_LINUX AND ARCH_AARCH64 OR OS_LINUX AND ARCH_X86_64 OR OS_LINUX AND ARCH_PPC64LE) 
+IF (OS_LINUX AND ARCH_ARM7 OR OS_LINUX AND ARCH_AARCH64 OR OS_LINUX AND ARCH_X86_64 OR OS_LINUX AND ARCH_PPC64LE)
     SRCS(
         engines/e_afalg.c
     )
diff --git a/contrib/libs/protoc/ya.make b/contrib/libs/protoc/ya.make
index 00f230bb41..af6a52de35 100644
--- a/contrib/libs/protoc/ya.make
+++ b/contrib/libs/protoc/ya.make
@@ -24,9 +24,9 @@ PEERDIR(
     contrib/libs/protobuf
 )
 
-ADDINCL( 
-    GLOBAL contrib/libs/protoc/src 
-) 
+ADDINCL(
+    GLOBAL contrib/libs/protoc/src
+)
 
 NO_COMPILER_WARNINGS()
 
diff --git a/contrib/libs/ya.make b/contrib/libs/ya.make
index af922adcc3..9c4640fdcf 100644
--- a/contrib/libs/ya.make
+++ b/contrib/libs/ya.make
@@ -9,10 +9,10 @@ RECURSE(
     apache
     apr
     apr-util
-    asio 
+    asio
     asmlib
     authparser
-    avs-device-sdk 
+    avs-device-sdk
     aws-sdk-cpp
     backtrace
     base64
@@ -20,8 +20,8 @@ RECURSE(
     bdb/ut
     benchmark
     bento4
-    bluez-clean-headers 
-    breakpad 
+    bluez-clean-headers
+    breakpad
     brotli
     c-ares
     cairo
@@ -153,12 +153,12 @@ RECURSE(
     libgit2
     libgraphqlparser
     libheif
-    libical 
+    libical
     libiconv
     libidn
     libidn2
     libjpeg-turbo
-    libjwt 
+    libjwt
     liblinear
     libm
     libmagic
@@ -173,7 +173,7 @@ RECURSE(
     libpng
     libpq
     libpqxx
-    libpsl 
+    libpsl
     libraw
     librdkafka
     librosa-cpp
@@ -224,12 +224,12 @@ RECURSE(
     metrohash
     mimalloc
     minilzo
-    minizip 
+    minizip
     mlir11
     mms
     mongo-c-driver
     mongo-cxx-driver
-    msgpack 
+    msgpack
     muparser
     muparser/tests
     musl
@@ -272,7 +272,7 @@ RECURSE(
     #pire/ut
     pixman
     poco
-    portaudio 
+    portaudio
     porto_api
     proj
     protobuf
@@ -337,9 +337,9 @@ RECURSE(
     tf-2.4/sample_python
     tf-2.4/tensorflow/python
     thrax
-    tinyalsa 
+    tinyalsa
     tlsh
-    trace_viewer 
+    trace_viewer
     tralics
     tree_sitter
     uatraits
@@ -351,7 +351,7 @@ RECURSE(
     vmaf
     wapiti
     webrtc
-    websocketpp 
+    websocketpp
     woff2
     xdelta3
     xmlsec
@@ -359,7 +359,7 @@ RECURSE(
     xxhash
     xz
     yajl
-    yaml 
+    yaml
     yaml-cpp
     zeromq
     zlib
@@ -402,8 +402,8 @@ IF (OS_LINUX)
         libnetfilter_log
         libnetfilter_conntrack
         openmpi
-        sdbus-cpp 
-        systemd 
+        sdbus-cpp
+        systemd
         uuid
         virtiofsd
     )
diff --git a/contrib/libs/yaml/License b/contrib/libs/yaml/License
index 97d5ed5837..3d82c281ee 100644
--- a/contrib/libs/yaml/License
+++ b/contrib/libs/yaml/License
@@ -1,20 +1,20 @@
 Copyright (c) 2017-2020 Ingy döt Net
 Copyright (c) 2006-2016 Kirill Simonov
- 
-Permission is hereby granted, free of charge, to any person obtaining a copy of 
-this software and associated documentation files (the "Software"), to deal in 
-the Software without restriction, including without limitation the rights to 
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
-of the Software, and to permit persons to whom the Software is furnished to do 
-so, subject to the following conditions: 
- 
-The above copyright notice and this permission notice shall be included in all 
-copies or substantial portions of the Software. 
- 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
-SOFTWARE. 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/contrib/libs/yaml/include/yaml.h b/contrib/libs/yaml/include/yaml.h
index bc3696f6b3..7ccd5ed97a 100644
--- a/contrib/libs/yaml/include/yaml.h
+++ b/contrib/libs/yaml/include/yaml.h
@@ -1,1531 +1,1531 @@
-/** 
- * @file yaml.h 
- * @brief Public interface for libyaml. 
- * 
- * Include the header file with the code: 
- * @code 
- * #include <yaml.h> 
- * @endcode 
- */ 
- 
-#ifndef YAML_H 
-#define YAML_H 
- 
-#ifdef __cplusplus 
-extern "C" { 
-#endif 
- 
-#include <stdlib.h> 
-#include <stdio.h> 
-#include <string.h> 
- 
-/** 
- * @defgroup export Export Definitions 
- * @{ 
- */ 
- 
-/** The public API declaration. */ 
- 
-#define YAML_DECLARE_STATIC 
- 
+/**
+ * @file yaml.h
+ * @brief Public interface for libyaml.
+ * 
+ * Include the header file with the code:
+ * @code
+ * #include <yaml.h>
+ * @endcode
+ */
+
+#ifndef YAML_H
+#define YAML_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+/**
+ * @defgroup export Export Definitions
+ * @{
+ */
+
+/** The public API declaration. */
+
+#define YAML_DECLARE_STATIC
+
 #if defined(__MINGW32__)
 #   define  YAML_DECLARE(type)  type
 #elif defined(_WIN32)
-#   if defined(YAML_DECLARE_STATIC) 
-#       define  YAML_DECLARE(type)  type 
-#   elif defined(YAML_DECLARE_EXPORT) 
-#       define  YAML_DECLARE(type)  __declspec(dllexport) type 
-#   else 
-#       define  YAML_DECLARE(type)  __declspec(dllimport) type 
-#   endif 
-#else 
-#   define  YAML_DECLARE(type)  type 
-#endif 
- 
-/** @} */ 
- 
-/** 
- * @defgroup version Version Information 
- * @{ 
- */ 
- 
-/** 
- * Get the library version as a string. 
- * 
- * @returns The function returns the pointer to a static string of the form 
- * @c "X.Y.Z", where @c X is the major version number, @c Y is a minor version 
- * number, and @c Z is the patch version number. 
- */ 
- 
-YAML_DECLARE(const char *) 
-yaml_get_version_string(void); 
- 
-/** 
- * Get the library version numbers. 
- * 
- * @param[out]      major   Major version number. 
- * @param[out]      minor   Minor version number. 
- * @param[out]      patch   Patch version number. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_get_version(int *major, int *minor, int *patch); 
- 
-/** @} */ 
- 
-/** 
- * @defgroup basic Basic Types 
- * @{ 
- */ 
- 
-/** The character type (UTF-8 octet). */ 
-typedef unsigned char yaml_char_t; 
- 
-/** The version directive data. */ 
-typedef struct yaml_version_directive_s { 
-    /** The major version number. */ 
-    int major; 
-    /** The minor version number. */ 
-    int minor; 
-} yaml_version_directive_t; 
- 
-/** The tag directive data. */ 
-typedef struct yaml_tag_directive_s { 
-    /** The tag handle. */ 
-    yaml_char_t *handle; 
-    /** The tag prefix. */ 
-    yaml_char_t *prefix; 
-} yaml_tag_directive_t; 
- 
-/** The stream encoding. */ 
-typedef enum yaml_encoding_e { 
-    /** Let the parser choose the encoding. */ 
-    YAML_ANY_ENCODING, 
-    /** The default UTF-8 encoding. */ 
-    YAML_UTF8_ENCODING, 
-    /** The UTF-16-LE encoding with BOM. */ 
-    YAML_UTF16LE_ENCODING, 
-    /** The UTF-16-BE encoding with BOM. */ 
-    YAML_UTF16BE_ENCODING 
-} yaml_encoding_t; 
- 
-/** Line break types. */ 
- 
-typedef enum yaml_break_e { 
-    /** Let the parser choose the break type. */ 
-    YAML_ANY_BREAK, 
-    /** Use CR for line breaks (Mac style). */ 
-    YAML_CR_BREAK, 
-    /** Use LN for line breaks (Unix style). */ 
-    YAML_LN_BREAK, 
-    /** Use CR LN for line breaks (DOS style). */ 
-    YAML_CRLN_BREAK 
-} yaml_break_t; 
- 
-/** Many bad things could happen with the parser and emitter. */ 
-typedef enum yaml_error_type_e { 
-    /** No error is produced. */ 
-    YAML_NO_ERROR, 
- 
-    /** Cannot allocate or reallocate a block of memory. */ 
-    YAML_MEMORY_ERROR, 
- 
-    /** Cannot read or decode the input stream. */ 
-    YAML_READER_ERROR, 
-    /** Cannot scan the input stream. */ 
-    YAML_SCANNER_ERROR, 
-    /** Cannot parse the input stream. */ 
-    YAML_PARSER_ERROR, 
-    /** Cannot compose a YAML document. */ 
-    YAML_COMPOSER_ERROR, 
- 
-    /** Cannot write to the output stream. */ 
-    YAML_WRITER_ERROR, 
-    /** Cannot emit a YAML stream. */ 
-    YAML_EMITTER_ERROR 
-} yaml_error_type_t; 
- 
-/** The pointer position. */ 
-typedef struct yaml_mark_s { 
-    /** The position index. */ 
-    size_t index; 
- 
-    /** The position line. */ 
-    size_t line; 
- 
-    /** The position column. */ 
-    size_t column; 
-} yaml_mark_t; 
- 
-/** @} */ 
- 
-/** 
- * @defgroup styles Node Styles 
- * @{ 
- */ 
- 
-/** Scalar styles. */ 
-typedef enum yaml_scalar_style_e { 
-    /** Let the emitter choose the style. */ 
-    YAML_ANY_SCALAR_STYLE, 
- 
-    /** The plain scalar style. */ 
-    YAML_PLAIN_SCALAR_STYLE, 
- 
-    /** The single-quoted scalar style. */ 
-    YAML_SINGLE_QUOTED_SCALAR_STYLE, 
-    /** The double-quoted scalar style. */ 
-    YAML_DOUBLE_QUOTED_SCALAR_STYLE, 
- 
-    /** The literal scalar style. */ 
-    YAML_LITERAL_SCALAR_STYLE, 
-    /** The folded scalar style. */ 
-    YAML_FOLDED_SCALAR_STYLE 
-} yaml_scalar_style_t; 
- 
-/** Sequence styles. */ 
-typedef enum yaml_sequence_style_e { 
-    /** Let the emitter choose the style. */ 
-    YAML_ANY_SEQUENCE_STYLE, 
- 
-    /** The block sequence style. */ 
-    YAML_BLOCK_SEQUENCE_STYLE, 
-    /** The flow sequence style. */ 
-    YAML_FLOW_SEQUENCE_STYLE 
-} yaml_sequence_style_t; 
- 
-/** Mapping styles. */ 
-typedef enum yaml_mapping_style_e { 
-    /** Let the emitter choose the style. */ 
-    YAML_ANY_MAPPING_STYLE, 
- 
-    /** The block mapping style. */ 
-    YAML_BLOCK_MAPPING_STYLE, 
-    /** The flow mapping style. */ 
-    YAML_FLOW_MAPPING_STYLE 
-/*    YAML_FLOW_SET_MAPPING_STYLE   */ 
-} yaml_mapping_style_t; 
- 
-/** @} */ 
- 
-/** 
- * @defgroup tokens Tokens 
- * @{ 
- */ 
- 
-/** Token types. */ 
-typedef enum yaml_token_type_e { 
-    /** An empty token. */ 
-    YAML_NO_TOKEN, 
- 
-    /** A STREAM-START token. */ 
-    YAML_STREAM_START_TOKEN, 
-    /** A STREAM-END token. */ 
-    YAML_STREAM_END_TOKEN, 
- 
-    /** A VERSION-DIRECTIVE token. */ 
-    YAML_VERSION_DIRECTIVE_TOKEN, 
-    /** A TAG-DIRECTIVE token. */ 
-    YAML_TAG_DIRECTIVE_TOKEN, 
-    /** A DOCUMENT-START token. */ 
-    YAML_DOCUMENT_START_TOKEN, 
-    /** A DOCUMENT-END token. */ 
-    YAML_DOCUMENT_END_TOKEN, 
- 
-    /** A BLOCK-SEQUENCE-START token. */ 
-    YAML_BLOCK_SEQUENCE_START_TOKEN, 
+#   if defined(YAML_DECLARE_STATIC)
+#       define  YAML_DECLARE(type)  type
+#   elif defined(YAML_DECLARE_EXPORT)
+#       define  YAML_DECLARE(type)  __declspec(dllexport) type
+#   else
+#       define  YAML_DECLARE(type)  __declspec(dllimport) type
+#   endif
+#else
+#   define  YAML_DECLARE(type)  type
+#endif
+
+/** @} */
+
+/**
+ * @defgroup version Version Information
+ * @{
+ */
+
+/**
+ * Get the library version as a string.
+ *
+ * @returns The function returns the pointer to a static string of the form
+ * @c "X.Y.Z", where @c X is the major version number, @c Y is a minor version
+ * number, and @c Z is the patch version number.
+ */
+
+YAML_DECLARE(const char *)
+yaml_get_version_string(void);
+
+/**
+ * Get the library version numbers.
+ *
+ * @param[out]      major   Major version number.
+ * @param[out]      minor   Minor version number.
+ * @param[out]      patch   Patch version number.
+ */
+
+YAML_DECLARE(void)
+yaml_get_version(int *major, int *minor, int *patch);
+
+/** @} */
+
+/**
+ * @defgroup basic Basic Types
+ * @{
+ */
+
+/** The character type (UTF-8 octet). */
+typedef unsigned char yaml_char_t;
+
+/** The version directive data. */
+typedef struct yaml_version_directive_s {
+    /** The major version number. */
+    int major;
+    /** The minor version number. */
+    int minor;
+} yaml_version_directive_t;
+
+/** The tag directive data. */
+typedef struct yaml_tag_directive_s {
+    /** The tag handle. */
+    yaml_char_t *handle;
+    /** The tag prefix. */
+    yaml_char_t *prefix;
+} yaml_tag_directive_t;
+
+/** The stream encoding. */
+typedef enum yaml_encoding_e {
+    /** Let the parser choose the encoding. */
+    YAML_ANY_ENCODING,
+    /** The default UTF-8 encoding. */
+    YAML_UTF8_ENCODING,
+    /** The UTF-16-LE encoding with BOM. */
+    YAML_UTF16LE_ENCODING,
+    /** The UTF-16-BE encoding with BOM. */
+    YAML_UTF16BE_ENCODING
+} yaml_encoding_t;
+
+/** Line break types. */
+
+typedef enum yaml_break_e {
+    /** Let the parser choose the break type. */
+    YAML_ANY_BREAK,
+    /** Use CR for line breaks (Mac style). */
+    YAML_CR_BREAK,
+    /** Use LN for line breaks (Unix style). */
+    YAML_LN_BREAK,
+    /** Use CR LN for line breaks (DOS style). */
+    YAML_CRLN_BREAK
+} yaml_break_t;
+
+/** Many bad things could happen with the parser and emitter. */
+typedef enum yaml_error_type_e {
+    /** No error is produced. */
+    YAML_NO_ERROR,
+
+    /** Cannot allocate or reallocate a block of memory. */
+    YAML_MEMORY_ERROR,
+
+    /** Cannot read or decode the input stream. */
+    YAML_READER_ERROR,
+    /** Cannot scan the input stream. */
+    YAML_SCANNER_ERROR,
+    /** Cannot parse the input stream. */
+    YAML_PARSER_ERROR,
+    /** Cannot compose a YAML document. */
+    YAML_COMPOSER_ERROR,
+
+    /** Cannot write to the output stream. */
+    YAML_WRITER_ERROR,
+    /** Cannot emit a YAML stream. */
+    YAML_EMITTER_ERROR
+} yaml_error_type_t;
+
+/** The pointer position. */
+typedef struct yaml_mark_s {
+    /** The position index. */
+    size_t index;
+
+    /** The position line. */
+    size_t line;
+
+    /** The position column. */
+    size_t column;
+} yaml_mark_t;
+
+/** @} */
+
+/**
+ * @defgroup styles Node Styles
+ * @{
+ */
+
+/** Scalar styles. */
+typedef enum yaml_scalar_style_e {
+    /** Let the emitter choose the style. */
+    YAML_ANY_SCALAR_STYLE,
+
+    /** The plain scalar style. */
+    YAML_PLAIN_SCALAR_STYLE,
+
+    /** The single-quoted scalar style. */
+    YAML_SINGLE_QUOTED_SCALAR_STYLE,
+    /** The double-quoted scalar style. */
+    YAML_DOUBLE_QUOTED_SCALAR_STYLE,
+
+    /** The literal scalar style. */
+    YAML_LITERAL_SCALAR_STYLE,
+    /** The folded scalar style. */
+    YAML_FOLDED_SCALAR_STYLE
+} yaml_scalar_style_t;
+
+/** Sequence styles. */
+typedef enum yaml_sequence_style_e {
+    /** Let the emitter choose the style. */
+    YAML_ANY_SEQUENCE_STYLE,
+
+    /** The block sequence style. */
+    YAML_BLOCK_SEQUENCE_STYLE,
+    /** The flow sequence style. */
+    YAML_FLOW_SEQUENCE_STYLE
+} yaml_sequence_style_t;
+
+/** Mapping styles. */
+typedef enum yaml_mapping_style_e {
+    /** Let the emitter choose the style. */
+    YAML_ANY_MAPPING_STYLE,
+
+    /** The block mapping style. */
+    YAML_BLOCK_MAPPING_STYLE,
+    /** The flow mapping style. */
+    YAML_FLOW_MAPPING_STYLE
+/*    YAML_FLOW_SET_MAPPING_STYLE   */
+} yaml_mapping_style_t;
+
+/** @} */
+
+/**
+ * @defgroup tokens Tokens
+ * @{
+ */
+
+/** Token types. */
+typedef enum yaml_token_type_e {
+    /** An empty token. */
+    YAML_NO_TOKEN,
+
+    /** A STREAM-START token. */
+    YAML_STREAM_START_TOKEN,
+    /** A STREAM-END token. */
+    YAML_STREAM_END_TOKEN,
+
+    /** A VERSION-DIRECTIVE token. */
+    YAML_VERSION_DIRECTIVE_TOKEN,
+    /** A TAG-DIRECTIVE token. */
+    YAML_TAG_DIRECTIVE_TOKEN,
+    /** A DOCUMENT-START token. */
+    YAML_DOCUMENT_START_TOKEN,
+    /** A DOCUMENT-END token. */
+    YAML_DOCUMENT_END_TOKEN,
+
+    /** A BLOCK-SEQUENCE-START token. */
+    YAML_BLOCK_SEQUENCE_START_TOKEN,
     /** A BLOCK-MAPPING-START token. */
-    YAML_BLOCK_MAPPING_START_TOKEN, 
-    /** A BLOCK-END token. */ 
-    YAML_BLOCK_END_TOKEN, 
- 
-    /** A FLOW-SEQUENCE-START token. */ 
-    YAML_FLOW_SEQUENCE_START_TOKEN, 
-    /** A FLOW-SEQUENCE-END token. */ 
-    YAML_FLOW_SEQUENCE_END_TOKEN, 
-    /** A FLOW-MAPPING-START token. */ 
-    YAML_FLOW_MAPPING_START_TOKEN, 
-    /** A FLOW-MAPPING-END token. */ 
-    YAML_FLOW_MAPPING_END_TOKEN, 
- 
-    /** A BLOCK-ENTRY token. */ 
-    YAML_BLOCK_ENTRY_TOKEN, 
-    /** A FLOW-ENTRY token. */ 
-    YAML_FLOW_ENTRY_TOKEN, 
-    /** A KEY token. */ 
-    YAML_KEY_TOKEN, 
-    /** A VALUE token. */ 
-    YAML_VALUE_TOKEN, 
- 
-    /** An ALIAS token. */ 
-    YAML_ALIAS_TOKEN, 
-    /** An ANCHOR token. */ 
-    YAML_ANCHOR_TOKEN, 
-    /** A TAG token. */ 
-    YAML_TAG_TOKEN, 
-    /** A SCALAR token. */ 
-    YAML_SCALAR_TOKEN 
-} yaml_token_type_t; 
- 
-/** The token structure. */ 
-typedef struct yaml_token_s { 
- 
-    /** The token type. */ 
-    yaml_token_type_t type; 
- 
-    /** The token data. */ 
-    union { 
- 
-        /** The stream start (for @c YAML_STREAM_START_TOKEN). */ 
-        struct { 
-            /** The stream encoding. */ 
-            yaml_encoding_t encoding; 
-        } stream_start; 
- 
-        /** The alias (for @c YAML_ALIAS_TOKEN). */ 
-        struct { 
-            /** The alias value. */ 
-            yaml_char_t *value; 
-        } alias; 
- 
-        /** The anchor (for @c YAML_ANCHOR_TOKEN). */ 
-        struct { 
-            /** The anchor value. */ 
-            yaml_char_t *value; 
-        } anchor; 
- 
-        /** The tag (for @c YAML_TAG_TOKEN). */ 
-        struct { 
-            /** The tag handle. */ 
-            yaml_char_t *handle; 
-            /** The tag suffix. */ 
-            yaml_char_t *suffix; 
-        } tag; 
- 
-        /** The scalar value (for @c YAML_SCALAR_TOKEN). */ 
-        struct { 
-            /** The scalar value. */ 
-            yaml_char_t *value; 
-            /** The length of the scalar value. */ 
-            size_t length; 
-            /** The scalar style. */ 
-            yaml_scalar_style_t style; 
-        } scalar; 
- 
-        /** The version directive (for @c YAML_VERSION_DIRECTIVE_TOKEN). */ 
-        struct { 
-            /** The major version number. */ 
-            int major; 
-            /** The minor version number. */ 
-            int minor; 
-        } version_directive; 
- 
-        /** The tag directive (for @c YAML_TAG_DIRECTIVE_TOKEN). */ 
-        struct { 
-            /** The tag handle. */ 
-            yaml_char_t *handle; 
-            /** The tag prefix. */ 
-            yaml_char_t *prefix; 
-        } tag_directive; 
- 
-    } data; 
- 
-    /** The beginning of the token. */ 
-    yaml_mark_t start_mark; 
-    /** The end of the token. */ 
-    yaml_mark_t end_mark; 
- 
-} yaml_token_t; 
- 
-/** 
- * Free any memory allocated for a token object. 
- * 
- * @param[in,out]   token   A token object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_token_delete(yaml_token_t *token); 
- 
-/** @} */ 
- 
-/** 
- * @defgroup events Events 
- * @{ 
- */ 
- 
-/** Event types. */ 
-typedef enum yaml_event_type_e { 
-    /** An empty event. */ 
-    YAML_NO_EVENT, 
- 
-    /** A STREAM-START event. */ 
-    YAML_STREAM_START_EVENT, 
-    /** A STREAM-END event. */ 
-    YAML_STREAM_END_EVENT, 
- 
-    /** A DOCUMENT-START event. */ 
-    YAML_DOCUMENT_START_EVENT, 
-    /** A DOCUMENT-END event. */ 
-    YAML_DOCUMENT_END_EVENT, 
- 
-    /** An ALIAS event. */ 
-    YAML_ALIAS_EVENT, 
-    /** A SCALAR event. */ 
-    YAML_SCALAR_EVENT, 
- 
-    /** A SEQUENCE-START event. */ 
-    YAML_SEQUENCE_START_EVENT, 
-    /** A SEQUENCE-END event. */ 
-    YAML_SEQUENCE_END_EVENT, 
- 
-    /** A MAPPING-START event. */ 
-    YAML_MAPPING_START_EVENT, 
-    /** A MAPPING-END event. */ 
-    YAML_MAPPING_END_EVENT 
-} yaml_event_type_t; 
- 
-/** The event structure. */ 
-typedef struct yaml_event_s { 
- 
-    /** The event type. */ 
-    yaml_event_type_t type; 
- 
-    /** The event data. */ 
-    union { 
+    YAML_BLOCK_MAPPING_START_TOKEN,
+    /** A BLOCK-END token. */
+    YAML_BLOCK_END_TOKEN,
+
+    /** A FLOW-SEQUENCE-START token. */
+    YAML_FLOW_SEQUENCE_START_TOKEN,
+    /** A FLOW-SEQUENCE-END token. */
+    YAML_FLOW_SEQUENCE_END_TOKEN,
+    /** A FLOW-MAPPING-START token. */
+    YAML_FLOW_MAPPING_START_TOKEN,
+    /** A FLOW-MAPPING-END token. */
+    YAML_FLOW_MAPPING_END_TOKEN,
+
+    /** A BLOCK-ENTRY token. */
+    YAML_BLOCK_ENTRY_TOKEN,
+    /** A FLOW-ENTRY token. */
+    YAML_FLOW_ENTRY_TOKEN,
+    /** A KEY token. */
+    YAML_KEY_TOKEN,
+    /** A VALUE token. */
+    YAML_VALUE_TOKEN,
+
+    /** An ALIAS token. */
+    YAML_ALIAS_TOKEN,
+    /** An ANCHOR token. */
+    YAML_ANCHOR_TOKEN,
+    /** A TAG token. */
+    YAML_TAG_TOKEN,
+    /** A SCALAR token. */
+    YAML_SCALAR_TOKEN
+} yaml_token_type_t;
+
+/** The token structure. */
+typedef struct yaml_token_s {
+
+    /** The token type. */
+    yaml_token_type_t type;
+
+    /** The token data. */
+    union {
+
+        /** The stream start (for @c YAML_STREAM_START_TOKEN). */
+        struct {
+            /** The stream encoding. */
+            yaml_encoding_t encoding;
+        } stream_start;
+
+        /** The alias (for @c YAML_ALIAS_TOKEN). */
+        struct {
+            /** The alias value. */
+            yaml_char_t *value;
+        } alias;
+
+        /** The anchor (for @c YAML_ANCHOR_TOKEN). */
+        struct {
+            /** The anchor value. */
+            yaml_char_t *value;
+        } anchor;
+
+        /** The tag (for @c YAML_TAG_TOKEN). */
+        struct {
+            /** The tag handle. */
+            yaml_char_t *handle;
+            /** The tag suffix. */
+            yaml_char_t *suffix;
+        } tag;
+
+        /** The scalar value (for @c YAML_SCALAR_TOKEN). */
+        struct {
+            /** The scalar value. */
+            yaml_char_t *value;
+            /** The length of the scalar value. */
+            size_t length;
+            /** The scalar style. */
+            yaml_scalar_style_t style;
+        } scalar;
+
+        /** The version directive (for @c YAML_VERSION_DIRECTIVE_TOKEN). */
+        struct {
+            /** The major version number. */
+            int major;
+            /** The minor version number. */
+            int minor;
+        } version_directive;
+
+        /** The tag directive (for @c YAML_TAG_DIRECTIVE_TOKEN). */
+        struct {
+            /** The tag handle. */
+            yaml_char_t *handle;
+            /** The tag prefix. */
+            yaml_char_t *prefix;
+        } tag_directive;
+
+    } data;
+
+    /** The beginning of the token. */
+    yaml_mark_t start_mark;
+    /** The end of the token. */
+    yaml_mark_t end_mark;
+
+} yaml_token_t;
+
+/**
+ * Free any memory allocated for a token object.
+ *
+ * @param[in,out]   token   A token object.
+ */
+
+YAML_DECLARE(void)
+yaml_token_delete(yaml_token_t *token);
+
+/** @} */
+
+/**
+ * @defgroup events Events
+ * @{
+ */
+
+/** Event types. */
+typedef enum yaml_event_type_e {
+    /** An empty event. */
+    YAML_NO_EVENT,
+
+    /** A STREAM-START event. */
+    YAML_STREAM_START_EVENT,
+    /** A STREAM-END event. */
+    YAML_STREAM_END_EVENT,
+
+    /** A DOCUMENT-START event. */
+    YAML_DOCUMENT_START_EVENT,
+    /** A DOCUMENT-END event. */
+    YAML_DOCUMENT_END_EVENT,
+
+    /** An ALIAS event. */
+    YAML_ALIAS_EVENT,
+    /** A SCALAR event. */
+    YAML_SCALAR_EVENT,
+
+    /** A SEQUENCE-START event. */
+    YAML_SEQUENCE_START_EVENT,
+    /** A SEQUENCE-END event. */
+    YAML_SEQUENCE_END_EVENT,
+
+    /** A MAPPING-START event. */
+    YAML_MAPPING_START_EVENT,
+    /** A MAPPING-END event. */
+    YAML_MAPPING_END_EVENT
+} yaml_event_type_t;
+
+/** The event structure. */
+typedef struct yaml_event_s {
+
+    /** The event type. */
+    yaml_event_type_t type;
+
+    /** The event data. */
+    union {
         
-        /** The stream parameters (for @c YAML_STREAM_START_EVENT). */ 
-        struct { 
-            /** The document encoding. */ 
-            yaml_encoding_t encoding; 
-        } stream_start; 
- 
-        /** The document parameters (for @c YAML_DOCUMENT_START_EVENT). */ 
-        struct { 
-            /** The version directive. */ 
-            yaml_version_directive_t *version_directive; 
- 
-            /** The list of tag directives. */ 
-            struct { 
-                /** The beginning of the tag directives list. */ 
-                yaml_tag_directive_t *start; 
-                /** The end of the tag directives list. */ 
-                yaml_tag_directive_t *end; 
-            } tag_directives; 
- 
-            /** Is the document indicator implicit? */ 
-            int implicit; 
-        } document_start; 
- 
-        /** The document end parameters (for @c YAML_DOCUMENT_END_EVENT). */ 
-        struct { 
-            /** Is the document end indicator implicit? */ 
-            int implicit; 
-        } document_end; 
- 
-        /** The alias parameters (for @c YAML_ALIAS_EVENT). */ 
-        struct { 
-            /** The anchor. */ 
-            yaml_char_t *anchor; 
-        } alias; 
- 
-        /** The scalar parameters (for @c YAML_SCALAR_EVENT). */ 
-        struct { 
-            /** The anchor. */ 
-            yaml_char_t *anchor; 
-            /** The tag. */ 
-            yaml_char_t *tag; 
-            /** The scalar value. */ 
-            yaml_char_t *value; 
-            /** The length of the scalar value. */ 
-            size_t length; 
-            /** Is the tag optional for the plain style? */ 
-            int plain_implicit; 
-            /** Is the tag optional for any non-plain style? */ 
-            int quoted_implicit; 
-            /** The scalar style. */ 
-            yaml_scalar_style_t style; 
-        } scalar; 
- 
-        /** The sequence parameters (for @c YAML_SEQUENCE_START_EVENT). */ 
-        struct { 
-            /** The anchor. */ 
-            yaml_char_t *anchor; 
-            /** The tag. */ 
-            yaml_char_t *tag; 
-            /** Is the tag optional? */ 
-            int implicit; 
-            /** The sequence style. */ 
-            yaml_sequence_style_t style; 
-        } sequence_start; 
- 
-        /** The mapping parameters (for @c YAML_MAPPING_START_EVENT). */ 
-        struct { 
-            /** The anchor. */ 
-            yaml_char_t *anchor; 
-            /** The tag. */ 
-            yaml_char_t *tag; 
-            /** Is the tag optional? */ 
-            int implicit; 
-            /** The mapping style. */ 
-            yaml_mapping_style_t style; 
-        } mapping_start; 
- 
-    } data; 
- 
-    /** The beginning of the event. */ 
-    yaml_mark_t start_mark; 
-    /** The end of the event. */ 
-    yaml_mark_t end_mark; 
- 
-} yaml_event_t; 
- 
-/** 
- * Create the STREAM-START event. 
- * 
- * @param[out]      event       An empty event object. 
- * @param[in]       encoding    The stream encoding. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_stream_start_event_initialize(yaml_event_t *event, 
-        yaml_encoding_t encoding); 
- 
-/** 
- * Create the STREAM-END event. 
- * 
- * @param[out]      event       An empty event object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_stream_end_event_initialize(yaml_event_t *event); 
- 
-/** 
- * Create the DOCUMENT-START event. 
- * 
- * The @a implicit argument is considered as a stylistic parameter and may be 
- * ignored by the emitter. 
- * 
- * @param[out]      event                   An empty event object. 
- * @param[in]       version_directive       The %YAML directive value or 
- *                                          @c NULL. 
- * @param[in]       tag_directives_start    The beginning of the %TAG 
- *                                          directives list. 
- * @param[in]       tag_directives_end      The end of the %TAG directives 
- *                                          list. 
- * @param[in]       implicit                If the document start indicator is 
- *                                          implicit. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_start_event_initialize(yaml_event_t *event, 
-        yaml_version_directive_t *version_directive, 
-        yaml_tag_directive_t *tag_directives_start, 
-        yaml_tag_directive_t *tag_directives_end, 
-        int implicit); 
- 
-/** 
- * Create the DOCUMENT-END event. 
- * 
- * The @a implicit argument is considered as a stylistic parameter and may be 
- * ignored by the emitter. 
- * 
- * @param[out]      event       An empty event object. 
- * @param[in]       implicit    If the document end indicator is implicit. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_end_event_initialize(yaml_event_t *event, int implicit); 
- 
-/** 
- * Create an ALIAS event. 
- * 
- * @param[out]      event       An empty event object. 
- * @param[in]       anchor      The anchor value. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
+        /** The stream parameters (for @c YAML_STREAM_START_EVENT). */
+        struct {
+            /** The document encoding. */
+            yaml_encoding_t encoding;
+        } stream_start;
+
+        /** The document parameters (for @c YAML_DOCUMENT_START_EVENT). */
+        struct {
+            /** The version directive. */
+            yaml_version_directive_t *version_directive;
+
+            /** The list of tag directives. */
+            struct {
+                /** The beginning of the tag directives list. */
+                yaml_tag_directive_t *start;
+                /** The end of the tag directives list. */
+                yaml_tag_directive_t *end;
+            } tag_directives;
+
+            /** Is the document indicator implicit? */
+            int implicit;
+        } document_start;
+
+        /** The document end parameters (for @c YAML_DOCUMENT_END_EVENT). */
+        struct {
+            /** Is the document end indicator implicit? */
+            int implicit;
+        } document_end;
+
+        /** The alias parameters (for @c YAML_ALIAS_EVENT). */
+        struct {
+            /** The anchor. */
+            yaml_char_t *anchor;
+        } alias;
+
+        /** The scalar parameters (for @c YAML_SCALAR_EVENT). */
+        struct {
+            /** The anchor. */
+            yaml_char_t *anchor;
+            /** The tag. */
+            yaml_char_t *tag;
+            /** The scalar value. */
+            yaml_char_t *value;
+            /** The length of the scalar value. */
+            size_t length;
+            /** Is the tag optional for the plain style? */
+            int plain_implicit;
+            /** Is the tag optional for any non-plain style? */
+            int quoted_implicit;
+            /** The scalar style. */
+            yaml_scalar_style_t style;
+        } scalar;
+
+        /** The sequence parameters (for @c YAML_SEQUENCE_START_EVENT). */
+        struct {
+            /** The anchor. */
+            yaml_char_t *anchor;
+            /** The tag. */
+            yaml_char_t *tag;
+            /** Is the tag optional? */
+            int implicit;
+            /** The sequence style. */
+            yaml_sequence_style_t style;
+        } sequence_start;
+
+        /** The mapping parameters (for @c YAML_MAPPING_START_EVENT). */
+        struct {
+            /** The anchor. */
+            yaml_char_t *anchor;
+            /** The tag. */
+            yaml_char_t *tag;
+            /** Is the tag optional? */
+            int implicit;
+            /** The mapping style. */
+            yaml_mapping_style_t style;
+        } mapping_start;
+
+    } data;
+
+    /** The beginning of the event. */
+    yaml_mark_t start_mark;
+    /** The end of the event. */
+    yaml_mark_t end_mark;
+
+} yaml_event_t;
+
+/**
+ * Create the STREAM-START event.
+ *
+ * @param[out]      event       An empty event object.
+ * @param[in]       encoding    The stream encoding.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_stream_start_event_initialize(yaml_event_t *event,
+        yaml_encoding_t encoding);
+
+/**
+ * Create the STREAM-END event.
+ *
+ * @param[out]      event       An empty event object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_stream_end_event_initialize(yaml_event_t *event);
+
+/**
+ * Create the DOCUMENT-START event.
+ *
+ * The @a implicit argument is considered as a stylistic parameter and may be
+ * ignored by the emitter.
+ *
+ * @param[out]      event                   An empty event object.
+ * @param[in]       version_directive       The %YAML directive value or
+ *                                          @c NULL.
+ * @param[in]       tag_directives_start    The beginning of the %TAG
+ *                                          directives list.
+ * @param[in]       tag_directives_end      The end of the %TAG directives
+ *                                          list.
+ * @param[in]       implicit                If the document start indicator is
+ *                                          implicit.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_start_event_initialize(yaml_event_t *event,
+        yaml_version_directive_t *version_directive,
+        yaml_tag_directive_t *tag_directives_start,
+        yaml_tag_directive_t *tag_directives_end,
+        int implicit);
+
+/**
+ * Create the DOCUMENT-END event.
+ *
+ * The @a implicit argument is considered as a stylistic parameter and may be
+ * ignored by the emitter.
+ *
+ * @param[out]      event       An empty event object.
+ * @param[in]       implicit    If the document end indicator is implicit.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_end_event_initialize(yaml_event_t *event, int implicit);
+
+/**
+ * Create an ALIAS event.
+ *
+ * @param[out]      event       An empty event object.
+ * @param[in]       anchor      The anchor value.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
 yaml_alias_event_initialize(yaml_event_t *event, const yaml_char_t *anchor);
- 
-/** 
- * Create a SCALAR event. 
- * 
- * The @a style argument may be ignored by the emitter. 
- * 
- * Either the @a tag attribute or one of the @a plain_implicit and 
- * @a quoted_implicit flags must be set. 
- * 
- * @param[out]      event           An empty event object. 
- * @param[in]       anchor          The scalar anchor or @c NULL. 
- * @param[in]       tag             The scalar tag or @c NULL. 
- * @param[in]       value           The scalar value. 
- * @param[in]       length          The length of the scalar value. 
- * @param[in]       plain_implicit  If the tag may be omitted for the plain 
- *                                  style. 
- * @param[in]       quoted_implicit If the tag may be omitted for any 
- *                                  non-plain style. 
- * @param[in]       style           The scalar style. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_scalar_event_initialize(yaml_event_t *event, 
+
+/**
+ * Create a SCALAR event.
+ *
+ * The @a style argument may be ignored by the emitter.
+ *
+ * Either the @a tag attribute or one of the @a plain_implicit and
+ * @a quoted_implicit flags must be set.
+ *
+ * @param[out]      event           An empty event object.
+ * @param[in]       anchor          The scalar anchor or @c NULL.
+ * @param[in]       tag             The scalar tag or @c NULL.
+ * @param[in]       value           The scalar value.
+ * @param[in]       length          The length of the scalar value.
+ * @param[in]       plain_implicit  If the tag may be omitted for the plain
+ *                                  style.
+ * @param[in]       quoted_implicit If the tag may be omitted for any
+ *                                  non-plain style.
+ * @param[in]       style           The scalar style.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_scalar_event_initialize(yaml_event_t *event,
         const yaml_char_t *anchor, const yaml_char_t *tag,
         const yaml_char_t *value, int length,
-        int plain_implicit, int quoted_implicit, 
-        yaml_scalar_style_t style); 
- 
-/** 
- * Create a SEQUENCE-START event. 
- * 
- * The @a style argument may be ignored by the emitter. 
- * 
- * Either the @a tag attribute or the @a implicit flag must be set. 
- * 
- * @param[out]      event       An empty event object. 
- * @param[in]       anchor      The sequence anchor or @c NULL. 
- * @param[in]       tag         The sequence tag or @c NULL. 
- * @param[in]       implicit    If the tag may be omitted. 
- * @param[in]       style       The sequence style. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_sequence_start_event_initialize(yaml_event_t *event, 
+        int plain_implicit, int quoted_implicit,
+        yaml_scalar_style_t style);
+
+/**
+ * Create a SEQUENCE-START event.
+ *
+ * The @a style argument may be ignored by the emitter.
+ *
+ * Either the @a tag attribute or the @a implicit flag must be set.
+ *
+ * @param[out]      event       An empty event object.
+ * @param[in]       anchor      The sequence anchor or @c NULL.
+ * @param[in]       tag         The sequence tag or @c NULL.
+ * @param[in]       implicit    If the tag may be omitted.
+ * @param[in]       style       The sequence style.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_sequence_start_event_initialize(yaml_event_t *event,
         const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
-        yaml_sequence_style_t style); 
- 
-/** 
- * Create a SEQUENCE-END event. 
- * 
- * @param[out]      event       An empty event object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_sequence_end_event_initialize(yaml_event_t *event); 
- 
-/** 
- * Create a MAPPING-START event. 
- * 
- * The @a style argument may be ignored by the emitter. 
- * 
- * Either the @a tag attribute or the @a implicit flag must be set. 
- * 
- * @param[out]      event       An empty event object. 
- * @param[in]       anchor      The mapping anchor or @c NULL. 
- * @param[in]       tag         The mapping tag or @c NULL. 
- * @param[in]       implicit    If the tag may be omitted. 
- * @param[in]       style       The mapping style. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_mapping_start_event_initialize(yaml_event_t *event, 
+        yaml_sequence_style_t style);
+
+/**
+ * Create a SEQUENCE-END event.
+ *
+ * @param[out]      event       An empty event object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_sequence_end_event_initialize(yaml_event_t *event);
+
+/**
+ * Create a MAPPING-START event.
+ *
+ * The @a style argument may be ignored by the emitter.
+ *
+ * Either the @a tag attribute or the @a implicit flag must be set.
+ *
+ * @param[out]      event       An empty event object.
+ * @param[in]       anchor      The mapping anchor or @c NULL.
+ * @param[in]       tag         The mapping tag or @c NULL.
+ * @param[in]       implicit    If the tag may be omitted.
+ * @param[in]       style       The mapping style.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_mapping_start_event_initialize(yaml_event_t *event,
         const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
-        yaml_mapping_style_t style); 
- 
-/** 
- * Create a MAPPING-END event. 
- * 
- * @param[out]      event       An empty event object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_mapping_end_event_initialize(yaml_event_t *event); 
- 
-/** 
- * Free any memory allocated for an event object. 
- * 
- * @param[in,out]   event   An event object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_event_delete(yaml_event_t *event); 
- 
-/** @} */ 
- 
-/** 
- * @defgroup nodes Nodes 
- * @{ 
- */ 
- 
-/** The tag @c !!null with the only possible value: @c null. */ 
-#define YAML_NULL_TAG       "tag:yaml.org,2002:null" 
+        yaml_mapping_style_t style);
+
+/**
+ * Create a MAPPING-END event.
+ *
+ * @param[out]      event       An empty event object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_mapping_end_event_initialize(yaml_event_t *event);
+
+/**
+ * Free any memory allocated for an event object.
+ *
+ * @param[in,out]   event   An event object.
+ */
+
+YAML_DECLARE(void)
+yaml_event_delete(yaml_event_t *event);
+
+/** @} */
+
+/**
+ * @defgroup nodes Nodes
+ * @{
+ */
+
+/** The tag @c !!null with the only possible value: @c null. */
+#define YAML_NULL_TAG       "tag:yaml.org,2002:null"
 /** The tag @c !!bool with the values: @c true and @c false. */
-#define YAML_BOOL_TAG       "tag:yaml.org,2002:bool" 
-/** The tag @c !!str for string values. */ 
-#define YAML_STR_TAG        "tag:yaml.org,2002:str" 
-/** The tag @c !!int for integer values. */ 
-#define YAML_INT_TAG        "tag:yaml.org,2002:int" 
-/** The tag @c !!float for float values. */ 
-#define YAML_FLOAT_TAG      "tag:yaml.org,2002:float" 
-/** The tag @c !!timestamp for date and time values. */ 
-#define YAML_TIMESTAMP_TAG  "tag:yaml.org,2002:timestamp" 
- 
-/** The tag @c !!seq is used to denote sequences. */ 
-#define YAML_SEQ_TAG        "tag:yaml.org,2002:seq" 
-/** The tag @c !!map is used to denote mapping. */ 
-#define YAML_MAP_TAG        "tag:yaml.org,2002:map" 
- 
-/** The default scalar tag is @c !!str. */ 
-#define YAML_DEFAULT_SCALAR_TAG     YAML_STR_TAG 
-/** The default sequence tag is @c !!seq. */ 
-#define YAML_DEFAULT_SEQUENCE_TAG   YAML_SEQ_TAG 
-/** The default mapping tag is @c !!map. */ 
-#define YAML_DEFAULT_MAPPING_TAG    YAML_MAP_TAG 
- 
-/** Node types. */ 
-typedef enum yaml_node_type_e { 
-    /** An empty node. */ 
-    YAML_NO_NODE, 
- 
-    /** A scalar node. */ 
-    YAML_SCALAR_NODE, 
-    /** A sequence node. */ 
-    YAML_SEQUENCE_NODE, 
-    /** A mapping node. */ 
-    YAML_MAPPING_NODE 
-} yaml_node_type_t; 
- 
-/** The forward definition of a document node structure. */ 
-typedef struct yaml_node_s yaml_node_t; 
- 
-/** An element of a sequence node. */ 
-typedef int yaml_node_item_t; 
- 
-/** An element of a mapping node. */ 
-typedef struct yaml_node_pair_s { 
-    /** The key of the element. */ 
-    int key; 
-    /** The value of the element. */ 
-    int value; 
-} yaml_node_pair_t; 
- 
-/** The node structure. */ 
-struct yaml_node_s { 
- 
-    /** The node type. */ 
-    yaml_node_type_t type; 
- 
-    /** The node tag. */ 
-    yaml_char_t *tag; 
- 
-    /** The node data. */ 
-    union { 
+#define YAML_BOOL_TAG       "tag:yaml.org,2002:bool"
+/** The tag @c !!str for string values. */
+#define YAML_STR_TAG        "tag:yaml.org,2002:str"
+/** The tag @c !!int for integer values. */
+#define YAML_INT_TAG        "tag:yaml.org,2002:int"
+/** The tag @c !!float for float values. */
+#define YAML_FLOAT_TAG      "tag:yaml.org,2002:float"
+/** The tag @c !!timestamp for date and time values. */
+#define YAML_TIMESTAMP_TAG  "tag:yaml.org,2002:timestamp"
+
+/** The tag @c !!seq is used to denote sequences. */
+#define YAML_SEQ_TAG        "tag:yaml.org,2002:seq"
+/** The tag @c !!map is used to denote mapping. */
+#define YAML_MAP_TAG        "tag:yaml.org,2002:map"
+
+/** The default scalar tag is @c !!str. */
+#define YAML_DEFAULT_SCALAR_TAG     YAML_STR_TAG
+/** The default sequence tag is @c !!seq. */
+#define YAML_DEFAULT_SEQUENCE_TAG   YAML_SEQ_TAG
+/** The default mapping tag is @c !!map. */
+#define YAML_DEFAULT_MAPPING_TAG    YAML_MAP_TAG
+
+/** Node types. */
+typedef enum yaml_node_type_e {
+    /** An empty node. */
+    YAML_NO_NODE,
+
+    /** A scalar node. */
+    YAML_SCALAR_NODE,
+    /** A sequence node. */
+    YAML_SEQUENCE_NODE,
+    /** A mapping node. */
+    YAML_MAPPING_NODE
+} yaml_node_type_t;
+
+/** The forward definition of a document node structure. */
+typedef struct yaml_node_s yaml_node_t;
+
+/** An element of a sequence node. */
+typedef int yaml_node_item_t;
+
+/** An element of a mapping node. */
+typedef struct yaml_node_pair_s {
+    /** The key of the element. */
+    int key;
+    /** The value of the element. */
+    int value;
+} yaml_node_pair_t;
+
+/** The node structure. */
+struct yaml_node_s {
+
+    /** The node type. */
+    yaml_node_type_t type;
+
+    /** The node tag. */
+    yaml_char_t *tag;
+
+    /** The node data. */
+    union {
         
-        /** The scalar parameters (for @c YAML_SCALAR_NODE). */ 
-        struct { 
-            /** The scalar value. */ 
-            yaml_char_t *value; 
-            /** The length of the scalar value. */ 
-            size_t length; 
-            /** The scalar style. */ 
-            yaml_scalar_style_t style; 
-        } scalar; 
- 
-        /** The sequence parameters (for @c YAML_SEQUENCE_NODE). */ 
-        struct { 
-            /** The stack of sequence items. */ 
-            struct { 
-                /** The beginning of the stack. */ 
-                yaml_node_item_t *start; 
-                /** The end of the stack. */ 
-                yaml_node_item_t *end; 
-                /** The top of the stack. */ 
-                yaml_node_item_t *top; 
-            } items; 
-            /** The sequence style. */ 
-            yaml_sequence_style_t style; 
-        } sequence; 
- 
-        /** The mapping parameters (for @c YAML_MAPPING_NODE). */ 
-        struct { 
-            /** The stack of mapping pairs (key, value). */ 
-            struct { 
-                /** The beginning of the stack. */ 
-                yaml_node_pair_t *start; 
-                /** The end of the stack. */ 
-                yaml_node_pair_t *end; 
-                /** The top of the stack. */ 
-                yaml_node_pair_t *top; 
-            } pairs; 
-            /** The mapping style. */ 
-            yaml_mapping_style_t style; 
-        } mapping; 
- 
-    } data; 
- 
-    /** The beginning of the node. */ 
-    yaml_mark_t start_mark; 
-    /** The end of the node. */ 
-    yaml_mark_t end_mark; 
- 
-}; 
- 
-/** The document structure. */ 
-typedef struct yaml_document_s { 
- 
-    /** The document nodes. */ 
-    struct { 
-        /** The beginning of the stack. */ 
-        yaml_node_t *start; 
-        /** The end of the stack. */ 
-        yaml_node_t *end; 
-        /** The top of the stack. */ 
-        yaml_node_t *top; 
-    } nodes; 
- 
-    /** The version directive. */ 
-    yaml_version_directive_t *version_directive; 
- 
-    /** The list of tag directives. */ 
-    struct { 
-        /** The beginning of the tag directives list. */ 
-        yaml_tag_directive_t *start; 
-        /** The end of the tag directives list. */ 
-        yaml_tag_directive_t *end; 
-    } tag_directives; 
- 
-    /** Is the document start indicator implicit? */ 
-    int start_implicit; 
-    /** Is the document end indicator implicit? */ 
-    int end_implicit; 
- 
-    /** The beginning of the document. */ 
-    yaml_mark_t start_mark; 
-    /** The end of the document. */ 
-    yaml_mark_t end_mark; 
- 
-} yaml_document_t; 
- 
-/** 
- * Create a YAML document. 
- * 
- * @param[out]      document                An empty document object. 
- * @param[in]       version_directive       The %YAML directive value or 
- *                                          @c NULL. 
- * @param[in]       tag_directives_start    The beginning of the %TAG 
- *                                          directives list. 
- * @param[in]       tag_directives_end      The end of the %TAG directives 
- *                                          list. 
- * @param[in]       start_implicit          If the document start indicator is 
- *                                          implicit. 
- * @param[in]       end_implicit            If the document end indicator is 
- *                                          implicit. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_initialize(yaml_document_t *document, 
-        yaml_version_directive_t *version_directive, 
-        yaml_tag_directive_t *tag_directives_start, 
-        yaml_tag_directive_t *tag_directives_end, 
-        int start_implicit, int end_implicit); 
- 
-/** 
- * Delete a YAML document and all its nodes. 
- * 
- * @param[in,out]   document        A document object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_document_delete(yaml_document_t *document); 
- 
-/** 
- * Get a node of a YAML document. 
- * 
- * The pointer returned by this function is valid until any of the functions 
- * modifying the documents are called. 
- * 
- * @param[in]       document        A document object. 
- * @param[in]       index           The node id. 
- * 
- * @returns the node objct or @c NULL if @c node_id is out of range. 
- */ 
- 
-YAML_DECLARE(yaml_node_t *) 
-yaml_document_get_node(yaml_document_t *document, int index); 
- 
-/** 
- * Get the root of a YAML document node. 
- * 
- * The root object is the first object added to the document. 
- * 
- * The pointer returned by this function is valid until any of the functions 
- * modifying the documents are called. 
- * 
- * An empty document produced by the parser signifies the end of a YAML 
- * stream. 
- * 
- * @param[in]       document        A document object. 
- * 
- * @returns the node object or @c NULL if the document is empty. 
- */ 
- 
-YAML_DECLARE(yaml_node_t *) 
-yaml_document_get_root_node(yaml_document_t *document); 
- 
-/** 
- * Create a SCALAR node and attach it to the document. 
- * 
- * The @a style argument may be ignored by the emitter. 
- * 
- * @param[in,out]   document        A document object. 
- * @param[in]       tag             The scalar tag. 
- * @param[in]       value           The scalar value. 
- * @param[in]       length          The length of the scalar value. 
- * @param[in]       style           The scalar style. 
- * 
- * @returns the node id or @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_add_scalar(yaml_document_t *document, 
+        /** The scalar parameters (for @c YAML_SCALAR_NODE). */
+        struct {
+            /** The scalar value. */
+            yaml_char_t *value;
+            /** The length of the scalar value. */
+            size_t length;
+            /** The scalar style. */
+            yaml_scalar_style_t style;
+        } scalar;
+
+        /** The sequence parameters (for @c YAML_SEQUENCE_NODE). */
+        struct {
+            /** The stack of sequence items. */
+            struct {
+                /** The beginning of the stack. */
+                yaml_node_item_t *start;
+                /** The end of the stack. */
+                yaml_node_item_t *end;
+                /** The top of the stack. */
+                yaml_node_item_t *top;
+            } items;
+            /** The sequence style. */
+            yaml_sequence_style_t style;
+        } sequence;
+
+        /** The mapping parameters (for @c YAML_MAPPING_NODE). */
+        struct {
+            /** The stack of mapping pairs (key, value). */
+            struct {
+                /** The beginning of the stack. */
+                yaml_node_pair_t *start;
+                /** The end of the stack. */
+                yaml_node_pair_t *end;
+                /** The top of the stack. */
+                yaml_node_pair_t *top;
+            } pairs;
+            /** The mapping style. */
+            yaml_mapping_style_t style;
+        } mapping;
+
+    } data;
+
+    /** The beginning of the node. */
+    yaml_mark_t start_mark;
+    /** The end of the node. */
+    yaml_mark_t end_mark;
+
+};
+
+/** The document structure. */
+typedef struct yaml_document_s {
+
+    /** The document nodes. */
+    struct {
+        /** The beginning of the stack. */
+        yaml_node_t *start;
+        /** The end of the stack. */
+        yaml_node_t *end;
+        /** The top of the stack. */
+        yaml_node_t *top;
+    } nodes;
+
+    /** The version directive. */
+    yaml_version_directive_t *version_directive;
+
+    /** The list of tag directives. */
+    struct {
+        /** The beginning of the tag directives list. */
+        yaml_tag_directive_t *start;
+        /** The end of the tag directives list. */
+        yaml_tag_directive_t *end;
+    } tag_directives;
+
+    /** Is the document start indicator implicit? */
+    int start_implicit;
+    /** Is the document end indicator implicit? */
+    int end_implicit;
+
+    /** The beginning of the document. */
+    yaml_mark_t start_mark;
+    /** The end of the document. */
+    yaml_mark_t end_mark;
+
+} yaml_document_t;
+
+/**
+ * Create a YAML document.
+ *
+ * @param[out]      document                An empty document object.
+ * @param[in]       version_directive       The %YAML directive value or
+ *                                          @c NULL.
+ * @param[in]       tag_directives_start    The beginning of the %TAG
+ *                                          directives list.
+ * @param[in]       tag_directives_end      The end of the %TAG directives
+ *                                          list.
+ * @param[in]       start_implicit          If the document start indicator is
+ *                                          implicit.
+ * @param[in]       end_implicit            If the document end indicator is
+ *                                          implicit.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_initialize(yaml_document_t *document,
+        yaml_version_directive_t *version_directive,
+        yaml_tag_directive_t *tag_directives_start,
+        yaml_tag_directive_t *tag_directives_end,
+        int start_implicit, int end_implicit);
+
+/**
+ * Delete a YAML document and all its nodes.
+ *
+ * @param[in,out]   document        A document object.
+ */
+
+YAML_DECLARE(void)
+yaml_document_delete(yaml_document_t *document);
+
+/**
+ * Get a node of a YAML document.
+ *
+ * The pointer returned by this function is valid until any of the functions
+ * modifying the documents are called.
+ *
+ * @param[in]       document        A document object.
+ * @param[in]       index           The node id.
+ *
+ * @returns the node objct or @c NULL if @c node_id is out of range.
+ */
+
+YAML_DECLARE(yaml_node_t *)
+yaml_document_get_node(yaml_document_t *document, int index);
+
+/**
+ * Get the root of a YAML document node.
+ *
+ * The root object is the first object added to the document.
+ *
+ * The pointer returned by this function is valid until any of the functions
+ * modifying the documents are called.
+ *
+ * An empty document produced by the parser signifies the end of a YAML
+ * stream.
+ *
+ * @param[in]       document        A document object.
+ *
+ * @returns the node object or @c NULL if the document is empty.
+ */
+
+YAML_DECLARE(yaml_node_t *)
+yaml_document_get_root_node(yaml_document_t *document);
+
+/**
+ * Create a SCALAR node and attach it to the document.
+ *
+ * The @a style argument may be ignored by the emitter.
+ *
+ * @param[in,out]   document        A document object.
+ * @param[in]       tag             The scalar tag.
+ * @param[in]       value           The scalar value.
+ * @param[in]       length          The length of the scalar value.
+ * @param[in]       style           The scalar style.
+ *
+ * @returns the node id or @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_add_scalar(yaml_document_t *document,
         const yaml_char_t *tag, const yaml_char_t *value, int length,
-        yaml_scalar_style_t style); 
- 
-/** 
- * Create a SEQUENCE node and attach it to the document. 
- * 
- * The @a style argument may be ignored by the emitter. 
- * 
- * @param[in,out]   document    A document object. 
- * @param[in]       tag         The sequence tag. 
- * @param[in]       style       The sequence style. 
- * 
- * @returns the node id or @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_add_sequence(yaml_document_t *document, 
+        yaml_scalar_style_t style);
+
+/**
+ * Create a SEQUENCE node and attach it to the document.
+ *
+ * The @a style argument may be ignored by the emitter.
+ *
+ * @param[in,out]   document    A document object.
+ * @param[in]       tag         The sequence tag.
+ * @param[in]       style       The sequence style.
+ *
+ * @returns the node id or @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_add_sequence(yaml_document_t *document,
         const yaml_char_t *tag, yaml_sequence_style_t style);
- 
-/** 
- * Create a MAPPING node and attach it to the document. 
- * 
- * The @a style argument may be ignored by the emitter. 
- * 
- * @param[in,out]   document    A document object. 
- * @param[in]       tag         The sequence tag. 
- * @param[in]       style       The sequence style. 
- * 
- * @returns the node id or @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_add_mapping(yaml_document_t *document, 
+
+/**
+ * Create a MAPPING node and attach it to the document.
+ *
+ * The @a style argument may be ignored by the emitter.
+ *
+ * @param[in,out]   document    A document object.
+ * @param[in]       tag         The sequence tag.
+ * @param[in]       style       The sequence style.
+ *
+ * @returns the node id or @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_add_mapping(yaml_document_t *document,
         const yaml_char_t *tag, yaml_mapping_style_t style);
- 
-/** 
- * Add an item to a SEQUENCE node. 
- * 
- * @param[in,out]   document    A document object. 
- * @param[in]       sequence    The sequence node id. 
- * @param[in]       item        The item node id. 
- *
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_append_sequence_item(yaml_document_t *document, 
-        int sequence, int item); 
- 
-/** 
- * Add a pair of a key and a value to a MAPPING node. 
- * 
- * @param[in,out]   document    A document object. 
- * @param[in]       mapping     The mapping node id. 
- * @param[in]       key         The key node id. 
- * @param[in]       value       The value node id. 
- *
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_append_mapping_pair(yaml_document_t *document, 
-        int mapping, int key, int value); 
- 
-/** @} */ 
- 
-/** 
- * @defgroup parser Parser Definitions 
- * @{ 
- */ 
- 
-/** 
- * The prototype of a read handler. 
- * 
- * The read handler is called when the parser needs to read more bytes from the 
- * source.  The handler should write not more than @a size bytes to the @a 
- * buffer.  The number of written bytes should be set to the @a length variable. 
- * 
- * @param[in,out]   data        A pointer to an application data specified by 
- *                              yaml_parser_set_input(). 
- * @param[out]      buffer      The buffer to write the data from the source. 
- * @param[in]       size        The size of the buffer. 
- * @param[out]      size_read   The actual number of bytes read from the source. 
- * 
- * @returns On success, the handler should return @c 1.  If the handler failed, 
- * the returned value should be @c 0.  On EOF, the handler should set the 
- * @a size_read to @c 0 and return @c 1. 
- */ 
- 
-typedef int yaml_read_handler_t(void *data, unsigned char *buffer, size_t size, 
-        size_t *size_read); 
- 
-/** 
- * This structure holds information about a potential simple key. 
- */ 
- 
-typedef struct yaml_simple_key_s { 
-    /** Is a simple key possible? */ 
-    int possible; 
- 
-    /** Is a simple key required? */ 
-    int required; 
- 
-    /** The number of the token. */ 
-    size_t token_number; 
- 
-    /** The position mark. */ 
-    yaml_mark_t mark; 
-} yaml_simple_key_t; 
- 
-/** 
- * The states of the parser. 
- */ 
-typedef enum yaml_parser_state_e { 
-    /** Expect STREAM-START. */ 
-    YAML_PARSE_STREAM_START_STATE, 
-    /** Expect the beginning of an implicit document. */ 
-    YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE, 
-    /** Expect DOCUMENT-START. */ 
-    YAML_PARSE_DOCUMENT_START_STATE, 
-    /** Expect the content of a document. */ 
-    YAML_PARSE_DOCUMENT_CONTENT_STATE, 
-    /** Expect DOCUMENT-END. */ 
-    YAML_PARSE_DOCUMENT_END_STATE, 
-
-    /** Expect a block node. */ 
-    YAML_PARSE_BLOCK_NODE_STATE, 
-    /** Expect a block node or indentless sequence. */ 
-    YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE, 
-    /** Expect a flow node. */ 
-    YAML_PARSE_FLOW_NODE_STATE, 
-    /** Expect the first entry of a block sequence. */ 
-    YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE, 
-    /** Expect an entry of a block sequence. */ 
-    YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE, 
-
-    /** Expect an entry of an indentless sequence. */ 
-    YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE, 
-    /** Expect the first key of a block mapping. */ 
-    YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE, 
-    /** Expect a block mapping key. */ 
-    YAML_PARSE_BLOCK_MAPPING_KEY_STATE, 
-    /** Expect a block mapping value. */ 
-    YAML_PARSE_BLOCK_MAPPING_VALUE_STATE, 
-    /** Expect the first entry of a flow sequence. */ 
-    YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE, 
-
-    /** Expect an entry of a flow sequence. */ 
-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE, 
-    /** Expect a key of an ordered mapping. */ 
-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE, 
-    /** Expect a value of an ordered mapping. */ 
-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE, 
-    /** Expect the and of an ordered mapping entry. */ 
-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE, 
-    /** Expect the first key of a flow mapping. */ 
-    YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE, 
-    /** Expect a key of a flow mapping. */ 
-
-    YAML_PARSE_FLOW_MAPPING_KEY_STATE, 
-    /** Expect a value of a flow mapping. */ 
-    YAML_PARSE_FLOW_MAPPING_VALUE_STATE, 
-    /** Expect an empty value of a flow mapping. */ 
-    YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE, 
-    /** Expect nothing. */ 
-    YAML_PARSE_END_STATE 
-} yaml_parser_state_t; 
- 
-/** 
- * This structure holds aliases data. 
- */ 
- 
-typedef struct yaml_alias_data_s { 
-    /** The anchor. */ 
-    yaml_char_t *anchor; 
-    /** The node id. */ 
-    int index; 
-    /** The anchor mark. */ 
-    yaml_mark_t mark; 
-} yaml_alias_data_t; 
- 
-/** 
- * The parser structure. 
- * 
- * All members are internal.  Manage the structure using the @c yaml_parser_ 
- * family of functions. 
- */ 
- 
-typedef struct yaml_parser_s { 
- 
-    /** 
-     * @name Error handling 
-     * @{ 
-     */ 
- 
-    /** Error type. */ 
-    yaml_error_type_t error; 
-    /** Error description. */ 
-    const char *problem; 
-    /** The byte about which the problem occured. */ 
-    size_t problem_offset; 
-    /** The problematic value (@c -1 is none). */ 
-    int problem_value; 
-    /** The problem position. */ 
-    yaml_mark_t problem_mark; 
-    /** The error context. */ 
-    const char *context; 
-    /** The context position. */ 
-    yaml_mark_t context_mark; 
- 
-    /** 
-     * @} 
-     */ 
- 
-    /** 
-     * @name Reader stuff 
-     * @{ 
-     */ 
- 
-    /** Read handler. */ 
-    yaml_read_handler_t *read_handler; 
- 
-    /** A pointer for passing to the read handler. */ 
-    void *read_handler_data; 
- 
-    /** Standard (string or file) input data. */ 
-    union { 
-        /** String input data. */ 
-        struct { 
-            /** The string start pointer. */ 
-            const unsigned char *start; 
-            /** The string end pointer. */ 
-            const unsigned char *end; 
-            /** The string current position. */ 
-            const unsigned char *current; 
-        } string; 
- 
-        /** File input data. */ 
-        FILE *file; 
-    } input; 
- 
-    /** EOF flag */ 
-    int eof; 
- 
-    /** The working buffer. */ 
-    struct { 
-        /** The beginning of the buffer. */ 
-        yaml_char_t *start; 
-        /** The end of the buffer. */ 
-        yaml_char_t *end; 
-        /** The current position of the buffer. */ 
-        yaml_char_t *pointer; 
-        /** The last filled position of the buffer. */ 
-        yaml_char_t *last; 
-    } buffer; 
- 
-    /* The number of unread characters in the buffer. */ 
-    size_t unread; 
- 
-    /** The raw buffer. */ 
-    struct { 
-        /** The beginning of the buffer. */ 
-        unsigned char *start; 
-        /** The end of the buffer. */ 
-        unsigned char *end; 
-        /** The current position of the buffer. */ 
-        unsigned char *pointer; 
-        /** The last filled position of the buffer. */ 
-        unsigned char *last; 
-    } raw_buffer; 
- 
-    /** The input encoding. */ 
-    yaml_encoding_t encoding; 
- 
-    /** The offset of the current position (in bytes). */ 
-    size_t offset; 
- 
-    /** The mark of the current position. */ 
-    yaml_mark_t mark; 
- 
-    /** 
-     * @} 
-     */ 
- 
-    /** 
-     * @name Scanner stuff 
-     * @{ 
-     */ 
- 
-    /** Have we started to scan the input stream? */ 
-    int stream_start_produced; 
- 
-    /** Have we reached the end of the input stream? */ 
-    int stream_end_produced; 
- 
-    /** The number of unclosed '[' and '{' indicators. */ 
-    int flow_level; 
- 
-    /** The tokens queue. */ 
-    struct { 
-        /** The beginning of the tokens queue. */ 
-        yaml_token_t *start; 
-        /** The end of the tokens queue. */ 
-        yaml_token_t *end; 
-        /** The head of the tokens queue. */ 
-        yaml_token_t *head; 
-        /** The tail of the tokens queue. */ 
-        yaml_token_t *tail; 
-    } tokens; 
- 
-    /** The number of tokens fetched from the queue. */ 
-    size_t tokens_parsed; 
- 
+
+/**
+ * Add an item to a SEQUENCE node.
+ *
+ * @param[in,out]   document    A document object.
+ * @param[in]       sequence    The sequence node id.
+ * @param[in]       item        The item node id.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_append_sequence_item(yaml_document_t *document,
+        int sequence, int item);
+
+/**
+ * Add a pair of a key and a value to a MAPPING node.
+ *
+ * @param[in,out]   document    A document object.
+ * @param[in]       mapping     The mapping node id.
+ * @param[in]       key         The key node id.
+ * @param[in]       value       The value node id.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_document_append_mapping_pair(yaml_document_t *document,
+        int mapping, int key, int value);
+
+/** @} */
+
+/**
+ * @defgroup parser Parser Definitions
+ * @{
+ */
+
+/**
+ * The prototype of a read handler.
+ *
+ * The read handler is called when the parser needs to read more bytes from the
+ * source.  The handler should write not more than @a size bytes to the @a
+ * buffer.  The number of written bytes should be set to the @a length variable.
+ *
+ * @param[in,out]   data        A pointer to an application data specified by
+ *                              yaml_parser_set_input().
+ * @param[out]      buffer      The buffer to write the data from the source.
+ * @param[in]       size        The size of the buffer.
+ * @param[out]      size_read   The actual number of bytes read from the source.
+ *
+ * @returns On success, the handler should return @c 1.  If the handler failed,
+ * the returned value should be @c 0.  On EOF, the handler should set the
+ * @a size_read to @c 0 and return @c 1.
+ */
+
+typedef int yaml_read_handler_t(void *data, unsigned char *buffer, size_t size,
+        size_t *size_read);
+
+/**
+ * This structure holds information about a potential simple key.
+ */
+
+typedef struct yaml_simple_key_s {
+    /** Is a simple key possible? */
+    int possible;
+
+    /** Is a simple key required? */
+    int required;
+
+    /** The number of the token. */
+    size_t token_number;
+
+    /** The position mark. */
+    yaml_mark_t mark;
+} yaml_simple_key_t;
+
+/**
+ * The states of the parser.
+ */
+typedef enum yaml_parser_state_e {
+    /** Expect STREAM-START. */
+    YAML_PARSE_STREAM_START_STATE,
+    /** Expect the beginning of an implicit document. */
+    YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE,
+    /** Expect DOCUMENT-START. */
+    YAML_PARSE_DOCUMENT_START_STATE,
+    /** Expect the content of a document. */
+    YAML_PARSE_DOCUMENT_CONTENT_STATE,
+    /** Expect DOCUMENT-END. */
+    YAML_PARSE_DOCUMENT_END_STATE,
+
+    /** Expect a block node. */
+    YAML_PARSE_BLOCK_NODE_STATE,
+    /** Expect a block node or indentless sequence. */
+    YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE,
+    /** Expect a flow node. */
+    YAML_PARSE_FLOW_NODE_STATE,
+    /** Expect the first entry of a block sequence. */
+    YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE,
+    /** Expect an entry of a block sequence. */
+    YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE,
+
+    /** Expect an entry of an indentless sequence. */
+    YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE,
+    /** Expect the first key of a block mapping. */
+    YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE,
+    /** Expect a block mapping key. */
+    YAML_PARSE_BLOCK_MAPPING_KEY_STATE,
+    /** Expect a block mapping value. */
+    YAML_PARSE_BLOCK_MAPPING_VALUE_STATE,
+    /** Expect the first entry of a flow sequence. */
+    YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE,
+
+    /** Expect an entry of a flow sequence. */
+    YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE,
+    /** Expect a key of an ordered mapping. */
+    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE,
+    /** Expect a value of an ordered mapping. */
+    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE,
+    /** Expect the and of an ordered mapping entry. */
+    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE,
+    /** Expect the first key of a flow mapping. */
+    YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE,
+    /** Expect a key of a flow mapping. */
+
+    YAML_PARSE_FLOW_MAPPING_KEY_STATE,
+    /** Expect a value of a flow mapping. */
+    YAML_PARSE_FLOW_MAPPING_VALUE_STATE,
+    /** Expect an empty value of a flow mapping. */
+    YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE,
+    /** Expect nothing. */
+    YAML_PARSE_END_STATE
+} yaml_parser_state_t;
+
+/**
+ * This structure holds aliases data.
+ */
+
+typedef struct yaml_alias_data_s {
+    /** The anchor. */
+    yaml_char_t *anchor;
+    /** The node id. */
+    int index;
+    /** The anchor mark. */
+    yaml_mark_t mark;
+} yaml_alias_data_t;
+
+/**
+ * The parser structure.
+ *
+ * All members are internal.  Manage the structure using the @c yaml_parser_
+ * family of functions.
+ */
+
+typedef struct yaml_parser_s {
+
+    /**
+     * @name Error handling
+     * @{
+     */
+
+    /** Error type. */
+    yaml_error_type_t error;
+    /** Error description. */
+    const char *problem;
+    /** The byte about which the problem occured. */
+    size_t problem_offset;
+    /** The problematic value (@c -1 is none). */
+    int problem_value;
+    /** The problem position. */
+    yaml_mark_t problem_mark;
+    /** The error context. */
+    const char *context;
+    /** The context position. */
+    yaml_mark_t context_mark;
+
+    /**
+     * @}
+     */
+
+    /**
+     * @name Reader stuff
+     * @{
+     */
+
+    /** Read handler. */
+    yaml_read_handler_t *read_handler;
+
+    /** A pointer for passing to the read handler. */
+    void *read_handler_data;
+
+    /** Standard (string or file) input data. */
+    union {
+        /** String input data. */
+        struct {
+            /** The string start pointer. */
+            const unsigned char *start;
+            /** The string end pointer. */
+            const unsigned char *end;
+            /** The string current position. */
+            const unsigned char *current;
+        } string;
+
+        /** File input data. */
+        FILE *file;
+    } input;
+
+    /** EOF flag */
+    int eof;
+
+    /** The working buffer. */
+    struct {
+        /** The beginning of the buffer. */
+        yaml_char_t *start;
+        /** The end of the buffer. */
+        yaml_char_t *end;
+        /** The current position of the buffer. */
+        yaml_char_t *pointer;
+        /** The last filled position of the buffer. */
+        yaml_char_t *last;
+    } buffer;
+
+    /* The number of unread characters in the buffer. */
+    size_t unread;
+
+    /** The raw buffer. */
+    struct {
+        /** The beginning of the buffer. */
+        unsigned char *start;
+        /** The end of the buffer. */
+        unsigned char *end;
+        /** The current position of the buffer. */
+        unsigned char *pointer;
+        /** The last filled position of the buffer. */
+        unsigned char *last;
+    } raw_buffer;
+
+    /** The input encoding. */
+    yaml_encoding_t encoding;
+
+    /** The offset of the current position (in bytes). */
+    size_t offset;
+
+    /** The mark of the current position. */
+    yaml_mark_t mark;
+
+    /**
+     * @}
+     */
+
+    /**
+     * @name Scanner stuff
+     * @{
+     */
+
+    /** Have we started to scan the input stream? */
+    int stream_start_produced;
+
+    /** Have we reached the end of the input stream? */
+    int stream_end_produced;
+
+    /** The number of unclosed '[' and '{' indicators. */
+    int flow_level;
+
+    /** The tokens queue. */
+    struct {
+        /** The beginning of the tokens queue. */
+        yaml_token_t *start;
+        /** The end of the tokens queue. */
+        yaml_token_t *end;
+        /** The head of the tokens queue. */
+        yaml_token_t *head;
+        /** The tail of the tokens queue. */
+        yaml_token_t *tail;
+    } tokens;
+
+    /** The number of tokens fetched from the queue. */
+    size_t tokens_parsed;
+
     /** Does the tokens queue contain a token ready for dequeueing. */
-    int token_available; 
- 
-    /** The indentation levels stack. */ 
-    struct { 
-        /** The beginning of the stack. */ 
-        int *start; 
-        /** The end of the stack. */ 
-        int *end; 
-        /** The top of the stack. */ 
-        int *top; 
-    } indents; 
- 
-    /** The current indentation level. */ 
-    int indent; 
- 
-    /** May a simple key occur at the current position? */ 
-    int simple_key_allowed; 
- 
-    /** The stack of simple keys. */ 
-    struct { 
-        /** The beginning of the stack. */ 
-        yaml_simple_key_t *start; 
-        /** The end of the stack. */ 
-        yaml_simple_key_t *end; 
-        /** The top of the stack. */ 
-        yaml_simple_key_t *top; 
-    } simple_keys; 
- 
-    /** 
-     * @} 
-     */ 
- 
-    /** 
-     * @name Parser stuff 
-     * @{ 
-     */ 
- 
-    /** The parser states stack. */ 
-    struct { 
-        /** The beginning of the stack. */ 
-        yaml_parser_state_t *start; 
-        /** The end of the stack. */ 
-        yaml_parser_state_t *end; 
-        /** The top of the stack. */ 
-        yaml_parser_state_t *top; 
-    } states; 
- 
-    /** The current parser state. */ 
-    yaml_parser_state_t state; 
- 
-    /** The stack of marks. */ 
-    struct { 
-        /** The beginning of the stack. */ 
-        yaml_mark_t *start; 
-        /** The end of the stack. */ 
-        yaml_mark_t *end; 
-        /** The top of the stack. */ 
-        yaml_mark_t *top; 
-    } marks; 
- 
-    /** The list of TAG directives. */ 
-    struct { 
-        /** The beginning of the list. */ 
-        yaml_tag_directive_t *start; 
-        /** The end of the list. */ 
-        yaml_tag_directive_t *end; 
-        /** The top of the list. */ 
-        yaml_tag_directive_t *top; 
-    } tag_directives; 
- 
-    /** 
-     * @} 
-     */ 
- 
-    /** 
-     * @name Dumper stuff 
-     * @{ 
-     */ 
- 
-    /** The alias data. */ 
-    struct { 
-        /** The beginning of the list. */ 
-        yaml_alias_data_t *start; 
-        /** The end of the list. */ 
-        yaml_alias_data_t *end; 
-        /** The top of the list. */ 
-        yaml_alias_data_t *top; 
-    } aliases; 
- 
-    /** The currently parsed document. */ 
-    yaml_document_t *document; 
- 
-    /** 
-     * @} 
-     */ 
- 
-} yaml_parser_t; 
- 
-/** 
- * Initialize a parser. 
- * 
- * This function creates a new parser object.  An application is responsible 
- * for destroying the object using the yaml_parser_delete() function. 
- * 
- * @param[out]      parser  An empty parser object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_initialize(yaml_parser_t *parser); 
- 
-/** 
- * Destroy a parser. 
- * 
- * @param[in,out]   parser  A parser object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_delete(yaml_parser_t *parser); 
- 
-/** 
- * Set a string input. 
- * 
- * Note that the @a input pointer must be valid while the @a parser object 
- * exists.  The application is responsible for destroing @a input after 
- * destroying the @a parser. 
- * 
- * @param[in,out]   parser  A parser object. 
- * @param[in]       input   A source data. 
- * @param[in]       size    The length of the source data in bytes. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_input_string(yaml_parser_t *parser, 
-        const unsigned char *input, size_t size); 
- 
-/** 
- * Set a file input. 
- * 
- * @a file should be a file object open for reading.  The application is 
- * responsible for closing the @a file. 
- * 
- * @param[in,out]   parser  A parser object. 
- * @param[in]       file    An open file. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file); 
- 
-/** 
- * Set a generic input handler. 
- * 
- * @param[in,out]   parser  A parser object. 
- * @param[in]       handler A read handler. 
- * @param[in]       data    Any application data for passing to the read 
- *                          handler. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_input(yaml_parser_t *parser, 
-        yaml_read_handler_t *handler, void *data); 
- 
-/** 
- * Set the source encoding. 
- * 
- * @param[in,out]   parser      A parser object. 
- * @param[in]       encoding    The source encoding. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding); 
- 
-/** 
- * Scan the input stream and produce the next token. 
- * 
- * Call the function subsequently to produce a sequence of tokens corresponding 
- * to the input stream.  The initial token has the type 
- * @c YAML_STREAM_START_TOKEN while the ending token has the type 
- * @c YAML_STREAM_END_TOKEN. 
- * 
- * An application is responsible for freeing any buffers associated with the 
- * produced token object using the @c yaml_token_delete function. 
- * 
- * An application must not alternate the calls of yaml_parser_scan() with the 
- * calls of yaml_parser_parse() or yaml_parser_load(). Doing this will break 
- * the parser. 
- * 
- * @param[in,out]   parser      A parser object. 
- * @param[out]      token       An empty token object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token); 
- 
-/** 
- * Parse the input stream and produce the next parsing event. 
- * 
- * Call the function subsequently to produce a sequence of events corresponding 
- * to the input stream.  The initial event has the type 
- * @c YAML_STREAM_START_EVENT while the ending event has the type 
- * @c YAML_STREAM_END_EVENT. 
- * 
- * An application is responsible for freeing any buffers associated with the 
- * produced event object using the yaml_event_delete() function. 
- * 
- * An application must not alternate the calls of yaml_parser_parse() with the 
- * calls of yaml_parser_scan() or yaml_parser_load(). Doing this will break the 
- * parser. 
- * 
- * @param[in,out]   parser      A parser object. 
- * @param[out]      event       An empty event object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event); 
- 
-/** 
- * Parse the input stream and produce the next YAML document. 
- * 
- * Call this function subsequently to produce a sequence of documents 
- * constituting the input stream. 
- * 
- * If the produced document has no root node, it means that the document 
- * end has been reached. 
- * 
- * An application is responsible for freeing any data associated with the 
- * produced document object using the yaml_document_delete() function. 
- * 
- * An application must not alternate the calls of yaml_parser_load() with the 
- * calls of yaml_parser_scan() or yaml_parser_parse(). Doing this will break 
- * the parser. 
- * 
- * @param[in,out]   parser      A parser object. 
- * @param[out]      document    An empty document object. 
- * 
+    int token_available;
+
+    /** The indentation levels stack. */
+    struct {
+        /** The beginning of the stack. */
+        int *start;
+        /** The end of the stack. */
+        int *end;
+        /** The top of the stack. */
+        int *top;
+    } indents;
+
+    /** The current indentation level. */
+    int indent;
+
+    /** May a simple key occur at the current position? */
+    int simple_key_allowed;
+
+    /** The stack of simple keys. */
+    struct {
+        /** The beginning of the stack. */
+        yaml_simple_key_t *start;
+        /** The end of the stack. */
+        yaml_simple_key_t *end;
+        /** The top of the stack. */
+        yaml_simple_key_t *top;
+    } simple_keys;
+
+    /**
+     * @}
+     */
+
+    /**
+     * @name Parser stuff
+     * @{
+     */
+
+    /** The parser states stack. */
+    struct {
+        /** The beginning of the stack. */
+        yaml_parser_state_t *start;
+        /** The end of the stack. */
+        yaml_parser_state_t *end;
+        /** The top of the stack. */
+        yaml_parser_state_t *top;
+    } states;
+
+    /** The current parser state. */
+    yaml_parser_state_t state;
+
+    /** The stack of marks. */
+    struct {
+        /** The beginning of the stack. */
+        yaml_mark_t *start;
+        /** The end of the stack. */
+        yaml_mark_t *end;
+        /** The top of the stack. */
+        yaml_mark_t *top;
+    } marks;
+
+    /** The list of TAG directives. */
+    struct {
+        /** The beginning of the list. */
+        yaml_tag_directive_t *start;
+        /** The end of the list. */
+        yaml_tag_directive_t *end;
+        /** The top of the list. */
+        yaml_tag_directive_t *top;
+    } tag_directives;
+
+    /**
+     * @}
+     */
+
+    /**
+     * @name Dumper stuff
+     * @{
+     */
+
+    /** The alias data. */
+    struct {
+        /** The beginning of the list. */
+        yaml_alias_data_t *start;
+        /** The end of the list. */
+        yaml_alias_data_t *end;
+        /** The top of the list. */
+        yaml_alias_data_t *top;
+    } aliases;
+
+    /** The currently parsed document. */
+    yaml_document_t *document;
+
+    /**
+     * @}
+     */
+
+} yaml_parser_t;
+
+/**
+ * Initialize a parser.
+ *
+ * This function creates a new parser object.  An application is responsible
+ * for destroying the object using the yaml_parser_delete() function.
+ *
+ * @param[out]      parser  An empty parser object.
+ *
  * @returns @c 1 if the function succeeded, @c 0 on error.
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document); 
- 
-/** @} */ 
- 
-/** 
- * @defgroup emitter Emitter Definitions 
- * @{ 
- */ 
- 
-/** 
- * The prototype of a write handler. 
- * 
- * The write handler is called when the emitter needs to flush the accumulated 
- * characters to the output.  The handler should write @a size bytes of the 
- * @a buffer to the output. 
- * 
- * @param[in,out]   data        A pointer to an application data specified by 
- *                              yaml_emitter_set_output(). 
- * @param[in]       buffer      The buffer with bytes to be written. 
- * @param[in]       size        The size of the buffer. 
- * 
- * @returns On success, the handler should return @c 1.  If the handler failed, 
- * the returned value should be @c 0. 
- */ 
- 
-typedef int yaml_write_handler_t(void *data, unsigned char *buffer, size_t size); 
- 
-/** The emitter states. */ 
-typedef enum yaml_emitter_state_e { 
-    /** Expect STREAM-START. */ 
-    YAML_EMIT_STREAM_START_STATE, 
-    /** Expect the first DOCUMENT-START or STREAM-END. */ 
-    YAML_EMIT_FIRST_DOCUMENT_START_STATE, 
-    /** Expect DOCUMENT-START or STREAM-END. */ 
-    YAML_EMIT_DOCUMENT_START_STATE, 
-    /** Expect the content of a document. */ 
-    YAML_EMIT_DOCUMENT_CONTENT_STATE, 
-    /** Expect DOCUMENT-END. */ 
-    YAML_EMIT_DOCUMENT_END_STATE, 
-
-    /** Expect the first item of a flow sequence. */ 
-    YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE, 
-    /** Expect an item of a flow sequence. */ 
-    YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE, 
-    /** Expect the first key of a flow mapping. */ 
-    YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE, 
-    /** Expect a key of a flow mapping. */ 
-    YAML_EMIT_FLOW_MAPPING_KEY_STATE, 
-    /** Expect a value for a simple key of a flow mapping. */ 
-    YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE, 
-
-    /** Expect a value of a flow mapping. */ 
-    YAML_EMIT_FLOW_MAPPING_VALUE_STATE, 
-    /** Expect the first item of a block sequence. */ 
-    YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE, 
-    /** Expect an item of a block sequence. */ 
-    YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE, 
-    /** Expect the first key of a block mapping. */ 
-    YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE, 
-    /** Expect the key of a block mapping. */ 
-    YAML_EMIT_BLOCK_MAPPING_KEY_STATE, 
-
-    /** Expect a value for a simple key of a block mapping. */ 
-    YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE, 
-    /** Expect a value of a block mapping. */ 
-    YAML_EMIT_BLOCK_MAPPING_VALUE_STATE, 
-    /** Expect nothing. */ 
-    YAML_EMIT_END_STATE 
-} yaml_emitter_state_t; 
- 
+ */
+
+YAML_DECLARE(int)
+yaml_parser_initialize(yaml_parser_t *parser);
+
+/**
+ * Destroy a parser.
+ *
+ * @param[in,out]   parser  A parser object.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_delete(yaml_parser_t *parser);
+
+/**
+ * Set a string input.
+ *
+ * Note that the @a input pointer must be valid while the @a parser object
+ * exists.  The application is responsible for destroing @a input after
+ * destroying the @a parser.
+ *
+ * @param[in,out]   parser  A parser object.
+ * @param[in]       input   A source data.
+ * @param[in]       size    The length of the source data in bytes.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_input_string(yaml_parser_t *parser,
+        const unsigned char *input, size_t size);
+
+/**
+ * Set a file input.
+ *
+ * @a file should be a file object open for reading.  The application is
+ * responsible for closing the @a file.
+ *
+ * @param[in,out]   parser  A parser object.
+ * @param[in]       file    An open file.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file);
+
+/**
+ * Set a generic input handler.
+ *
+ * @param[in,out]   parser  A parser object.
+ * @param[in]       handler A read handler.
+ * @param[in]       data    Any application data for passing to the read
+ *                          handler.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_input(yaml_parser_t *parser,
+        yaml_read_handler_t *handler, void *data);
+
+/**
+ * Set the source encoding.
+ *
+ * @param[in,out]   parser      A parser object.
+ * @param[in]       encoding    The source encoding.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding);
+
+/**
+ * Scan the input stream and produce the next token.
+ *
+ * Call the function subsequently to produce a sequence of tokens corresponding
+ * to the input stream.  The initial token has the type
+ * @c YAML_STREAM_START_TOKEN while the ending token has the type
+ * @c YAML_STREAM_END_TOKEN.
+ *
+ * An application is responsible for freeing any buffers associated with the
+ * produced token object using the @c yaml_token_delete function.
+ *
+ * An application must not alternate the calls of yaml_parser_scan() with the
+ * calls of yaml_parser_parse() or yaml_parser_load(). Doing this will break
+ * the parser.
+ *
+ * @param[in,out]   parser      A parser object.
+ * @param[out]      token       An empty token object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token);
+
+/**
+ * Parse the input stream and produce the next parsing event.
+ *
+ * Call the function subsequently to produce a sequence of events corresponding
+ * to the input stream.  The initial event has the type
+ * @c YAML_STREAM_START_EVENT while the ending event has the type
+ * @c YAML_STREAM_END_EVENT.
+ *
+ * An application is responsible for freeing any buffers associated with the
+ * produced event object using the yaml_event_delete() function.
+ *
+ * An application must not alternate the calls of yaml_parser_parse() with the
+ * calls of yaml_parser_scan() or yaml_parser_load(). Doing this will break the
+ * parser.
+ *
+ * @param[in,out]   parser      A parser object.
+ * @param[out]      event       An empty event object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event);
+
+/**
+ * Parse the input stream and produce the next YAML document.
+ *
+ * Call this function subsequently to produce a sequence of documents
+ * constituting the input stream.
+ *
+ * If the produced document has no root node, it means that the document
+ * end has been reached.
+ *
+ * An application is responsible for freeing any data associated with the
+ * produced document object using the yaml_document_delete() function.
+ *
+ * An application must not alternate the calls of yaml_parser_load() with the
+ * calls of yaml_parser_scan() or yaml_parser_parse(). Doing this will break
+ * the parser.
+ *
+ * @param[in,out]   parser      A parser object.
+ * @param[out]      document    An empty document object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document);
+
+/** @} */
+
+/**
+ * @defgroup emitter Emitter Definitions
+ * @{
+ */
+
+/**
+ * The prototype of a write handler.
+ *
+ * The write handler is called when the emitter needs to flush the accumulated
+ * characters to the output.  The handler should write @a size bytes of the
+ * @a buffer to the output.
+ *
+ * @param[in,out]   data        A pointer to an application data specified by
+ *                              yaml_emitter_set_output().
+ * @param[in]       buffer      The buffer with bytes to be written.
+ * @param[in]       size        The size of the buffer.
+ *
+ * @returns On success, the handler should return @c 1.  If the handler failed,
+ * the returned value should be @c 0.
+ */
+
+typedef int yaml_write_handler_t(void *data, unsigned char *buffer, size_t size);
+
+/** The emitter states. */
+typedef enum yaml_emitter_state_e {
+    /** Expect STREAM-START. */
+    YAML_EMIT_STREAM_START_STATE,
+    /** Expect the first DOCUMENT-START or STREAM-END. */
+    YAML_EMIT_FIRST_DOCUMENT_START_STATE,
+    /** Expect DOCUMENT-START or STREAM-END. */
+    YAML_EMIT_DOCUMENT_START_STATE,
+    /** Expect the content of a document. */
+    YAML_EMIT_DOCUMENT_CONTENT_STATE,
+    /** Expect DOCUMENT-END. */
+    YAML_EMIT_DOCUMENT_END_STATE,
+
+    /** Expect the first item of a flow sequence. */
+    YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE,
+    /** Expect an item of a flow sequence. */
+    YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE,
+    /** Expect the first key of a flow mapping. */
+    YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE,
+    /** Expect a key of a flow mapping. */
+    YAML_EMIT_FLOW_MAPPING_KEY_STATE,
+    /** Expect a value for a simple key of a flow mapping. */
+    YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE,
+
+    /** Expect a value of a flow mapping. */
+    YAML_EMIT_FLOW_MAPPING_VALUE_STATE,
+    /** Expect the first item of a block sequence. */
+    YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE,
+    /** Expect an item of a block sequence. */
+    YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE,
+    /** Expect the first key of a block mapping. */
+    YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE,
+    /** Expect the key of a block mapping. */
+    YAML_EMIT_BLOCK_MAPPING_KEY_STATE,
+
+    /** Expect a value for a simple key of a block mapping. */
+    YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE,
+    /** Expect a value of a block mapping. */
+    YAML_EMIT_BLOCK_MAPPING_VALUE_STATE,
+    /** Expect nothing. */
+    YAML_EMIT_END_STATE
+} yaml_emitter_state_t;
+
 
 /* This is needed for C++ */
 
@@ -1538,450 +1538,450 @@ typedef struct yaml_anchors_s {
     int serialized;
 } yaml_anchors_t;
 
-/** 
- * The emitter structure. 
- * 
- * All members are internal.  Manage the structure using the @c yaml_emitter_ 
- * family of functions. 
- */ 
- 
-typedef struct yaml_emitter_s { 
- 
-    /** 
-     * @name Error handling 
-     * @{ 
-     */ 
- 
-    /** Error type. */ 
-    yaml_error_type_t error; 
-    /** Error description. */ 
-    const char *problem; 
- 
-    /** 
-     * @} 
-     */ 
- 
-    /** 
-     * @name Writer stuff 
-     * @{ 
-     */ 
- 
-    /** Write handler. */ 
-    yaml_write_handler_t *write_handler; 
- 
+/**
+ * The emitter structure.
+ *
+ * All members are internal.  Manage the structure using the @c yaml_emitter_
+ * family of functions.
+ */
+
+typedef struct yaml_emitter_s {
+
+    /**
+     * @name Error handling
+     * @{
+     */
+
+    /** Error type. */
+    yaml_error_type_t error;
+    /** Error description. */
+    const char *problem;
+
+    /**
+     * @}
+     */
+
+    /**
+     * @name Writer stuff
+     * @{
+     */
+
+    /** Write handler. */
+    yaml_write_handler_t *write_handler;
+
     /** A pointer for passing to the write handler. */
-    void *write_handler_data; 
- 
-    /** Standard (string or file) output data. */ 
-    union { 
-        /** String output data. */ 
-        struct { 
-            /** The buffer pointer. */ 
-            unsigned char *buffer; 
-            /** The buffer size. */ 
-            size_t size; 
-            /** The number of written bytes. */ 
-            size_t *size_written; 
-        } string; 
- 
-        /** File output data. */ 
-        FILE *file; 
-    } output; 
- 
-    /** The working buffer. */ 
-    struct { 
-        /** The beginning of the buffer. */ 
-        yaml_char_t *start; 
-        /** The end of the buffer. */ 
-        yaml_char_t *end; 
-        /** The current position of the buffer. */ 
-        yaml_char_t *pointer; 
-        /** The last filled position of the buffer. */ 
-        yaml_char_t *last; 
-    } buffer; 
- 
-    /** The raw buffer. */ 
-    struct { 
-        /** The beginning of the buffer. */ 
-        unsigned char *start; 
-        /** The end of the buffer. */ 
-        unsigned char *end; 
-        /** The current position of the buffer. */ 
-        unsigned char *pointer; 
-        /** The last filled position of the buffer. */ 
-        unsigned char *last; 
-    } raw_buffer; 
- 
-    /** The stream encoding. */ 
-    yaml_encoding_t encoding; 
- 
-    /** 
-     * @} 
-     */ 
- 
-    /** 
-     * @name Emitter stuff 
-     * @{ 
-     */ 
- 
-    /** If the output is in the canonical style? */ 
-    int canonical; 
-    /** The number of indentation spaces. */ 
-    int best_indent; 
-    /** The preferred width of the output lines. */ 
-    int best_width; 
-    /** Allow unescaped non-ASCII characters? */ 
-    int unicode; 
-    /** The preferred line break. */ 
-    yaml_break_t line_break; 
- 
-    /** The stack of states. */ 
-    struct { 
-        /** The beginning of the stack. */ 
-        yaml_emitter_state_t *start; 
-        /** The end of the stack. */ 
-        yaml_emitter_state_t *end; 
-        /** The top of the stack. */ 
-        yaml_emitter_state_t *top; 
-    } states; 
- 
-    /** The current emitter state. */ 
-    yaml_emitter_state_t state; 
- 
-    /** The event queue. */ 
-    struct { 
-        /** The beginning of the event queue. */ 
-        yaml_event_t *start; 
-        /** The end of the event queue. */ 
-        yaml_event_t *end; 
-        /** The head of the event queue. */ 
-        yaml_event_t *head; 
-        /** The tail of the event queue. */ 
-        yaml_event_t *tail; 
-    } events; 
- 
-    /** The stack of indentation levels. */ 
-    struct { 
-        /** The beginning of the stack. */ 
-        int *start; 
-        /** The end of the stack. */ 
-        int *end; 
-        /** The top of the stack. */ 
-        int *top; 
-    } indents; 
- 
-    /** The list of tag directives. */ 
-    struct { 
-        /** The beginning of the list. */ 
-        yaml_tag_directive_t *start; 
-        /** The end of the list. */ 
-        yaml_tag_directive_t *end; 
-        /** The top of the list. */ 
-        yaml_tag_directive_t *top; 
-    } tag_directives; 
- 
-    /** The current indentation level. */ 
-    int indent; 
- 
-    /** The current flow level. */ 
-    int flow_level; 
- 
-    /** Is it the document root context? */ 
-    int root_context; 
-    /** Is it a sequence context? */ 
-    int sequence_context; 
-    /** Is it a mapping context? */ 
-    int mapping_context; 
-    /** Is it a simple mapping key context? */ 
-    int simple_key_context; 
- 
-    /** The current line. */ 
-    int line; 
-    /** The current column. */ 
-    int column; 
-    /** If the last character was a whitespace? */ 
-    int whitespace; 
-    /** If the last character was an indentation character (' ', '-', '?', ':')? */ 
-    int indention; 
-    /** If an explicit document end is required? */ 
-    int open_ended; 
- 
-    /** Anchor analysis. */ 
-    struct { 
-        /** The anchor value. */ 
-        yaml_char_t *anchor; 
-        /** The anchor length. */ 
-        size_t anchor_length; 
-        /** Is it an alias? */ 
-        int alias; 
-    } anchor_data; 
- 
-    /** Tag analysis. */ 
-    struct { 
-        /** The tag handle. */ 
-        yaml_char_t *handle; 
-        /** The tag handle length. */ 
-        size_t handle_length; 
-        /** The tag suffix. */ 
-        yaml_char_t *suffix; 
-        /** The tag suffix length. */ 
-        size_t suffix_length; 
-    } tag_data; 
- 
-    /** Scalar analysis. */ 
-    struct { 
-        /** The scalar value. */ 
-        yaml_char_t *value; 
-        /** The scalar length. */ 
-        size_t length; 
-        /** Does the scalar contain line breaks? */ 
-        int multiline; 
-        /** Can the scalar be expessed in the flow plain style? */ 
-        int flow_plain_allowed; 
-        /** Can the scalar be expressed in the block plain style? */ 
-        int block_plain_allowed; 
-        /** Can the scalar be expressed in the single quoted style? */ 
-        int single_quoted_allowed; 
-        /** Can the scalar be expressed in the literal or folded styles? */ 
-        int block_allowed; 
-        /** The output style. */ 
-        yaml_scalar_style_t style; 
-    } scalar_data; 
- 
-    /** 
-     * @} 
-     */ 
- 
-    /** 
-     * @name Dumper stuff 
-     * @{ 
-     */ 
- 
-    /** If the stream was already opened? */ 
-    int opened; 
-    /** If the stream was already closed? */ 
-    int closed; 
- 
-    /** The information associated with the document nodes. */ 
+    void *write_handler_data;
+
+    /** Standard (string or file) output data. */
+    union {
+        /** String output data. */
+        struct {
+            /** The buffer pointer. */
+            unsigned char *buffer;
+            /** The buffer size. */
+            size_t size;
+            /** The number of written bytes. */
+            size_t *size_written;
+        } string;
+
+        /** File output data. */
+        FILE *file;
+    } output;
+
+    /** The working buffer. */
+    struct {
+        /** The beginning of the buffer. */
+        yaml_char_t *start;
+        /** The end of the buffer. */
+        yaml_char_t *end;
+        /** The current position of the buffer. */
+        yaml_char_t *pointer;
+        /** The last filled position of the buffer. */
+        yaml_char_t *last;
+    } buffer;
+
+    /** The raw buffer. */
+    struct {
+        /** The beginning of the buffer. */
+        unsigned char *start;
+        /** The end of the buffer. */
+        unsigned char *end;
+        /** The current position of the buffer. */
+        unsigned char *pointer;
+        /** The last filled position of the buffer. */
+        unsigned char *last;
+    } raw_buffer;
+
+    /** The stream encoding. */
+    yaml_encoding_t encoding;
+
+    /**
+     * @}
+     */
+
+    /**
+     * @name Emitter stuff
+     * @{
+     */
+
+    /** If the output is in the canonical style? */
+    int canonical;
+    /** The number of indentation spaces. */
+    int best_indent;
+    /** The preferred width of the output lines. */
+    int best_width;
+    /** Allow unescaped non-ASCII characters? */
+    int unicode;
+    /** The preferred line break. */
+    yaml_break_t line_break;
+
+    /** The stack of states. */
+    struct {
+        /** The beginning of the stack. */
+        yaml_emitter_state_t *start;
+        /** The end of the stack. */
+        yaml_emitter_state_t *end;
+        /** The top of the stack. */
+        yaml_emitter_state_t *top;
+    } states;
+
+    /** The current emitter state. */
+    yaml_emitter_state_t state;
+
+    /** The event queue. */
+    struct {
+        /** The beginning of the event queue. */
+        yaml_event_t *start;
+        /** The end of the event queue. */
+        yaml_event_t *end;
+        /** The head of the event queue. */
+        yaml_event_t *head;
+        /** The tail of the event queue. */
+        yaml_event_t *tail;
+    } events;
+
+    /** The stack of indentation levels. */
+    struct {
+        /** The beginning of the stack. */
+        int *start;
+        /** The end of the stack. */
+        int *end;
+        /** The top of the stack. */
+        int *top;
+    } indents;
+
+    /** The list of tag directives. */
+    struct {
+        /** The beginning of the list. */
+        yaml_tag_directive_t *start;
+        /** The end of the list. */
+        yaml_tag_directive_t *end;
+        /** The top of the list. */
+        yaml_tag_directive_t *top;
+    } tag_directives;
+
+    /** The current indentation level. */
+    int indent;
+
+    /** The current flow level. */
+    int flow_level;
+
+    /** Is it the document root context? */
+    int root_context;
+    /** Is it a sequence context? */
+    int sequence_context;
+    /** Is it a mapping context? */
+    int mapping_context;
+    /** Is it a simple mapping key context? */
+    int simple_key_context;
+
+    /** The current line. */
+    int line;
+    /** The current column. */
+    int column;
+    /** If the last character was a whitespace? */
+    int whitespace;
+    /** If the last character was an indentation character (' ', '-', '?', ':')? */
+    int indention;
+    /** If an explicit document end is required? */
+    int open_ended;
+
+    /** Anchor analysis. */
+    struct {
+        /** The anchor value. */
+        yaml_char_t *anchor;
+        /** The anchor length. */
+        size_t anchor_length;
+        /** Is it an alias? */
+        int alias;
+    } anchor_data;
+
+    /** Tag analysis. */
+    struct {
+        /** The tag handle. */
+        yaml_char_t *handle;
+        /** The tag handle length. */
+        size_t handle_length;
+        /** The tag suffix. */
+        yaml_char_t *suffix;
+        /** The tag suffix length. */
+        size_t suffix_length;
+    } tag_data;
+
+    /** Scalar analysis. */
+    struct {
+        /** The scalar value. */
+        yaml_char_t *value;
+        /** The scalar length. */
+        size_t length;
+        /** Does the scalar contain line breaks? */
+        int multiline;
+        /** Can the scalar be expessed in the flow plain style? */
+        int flow_plain_allowed;
+        /** Can the scalar be expressed in the block plain style? */
+        int block_plain_allowed;
+        /** Can the scalar be expressed in the single quoted style? */
+        int single_quoted_allowed;
+        /** Can the scalar be expressed in the literal or folded styles? */
+        int block_allowed;
+        /** The output style. */
+        yaml_scalar_style_t style;
+    } scalar_data;
+
+    /**
+     * @}
+     */
+
+    /**
+     * @name Dumper stuff
+     * @{
+     */
+
+    /** If the stream was already opened? */
+    int opened;
+    /** If the stream was already closed? */
+    int closed;
+
+    /** The information associated with the document nodes. */
     yaml_anchors_t *anchors;
- 
-    /** The last assigned anchor id. */ 
-    int last_anchor_id; 
- 
-    /** The currently emitted document. */ 
-    yaml_document_t *document; 
- 
-    /** 
-     * @} 
-     */ 
- 
-} yaml_emitter_t; 
- 
-/** 
- * Initialize an emitter. 
- * 
- * This function creates a new emitter object.  An application is responsible 
- * for destroying the object using the yaml_emitter_delete() function. 
- * 
- * @param[out]      emitter     An empty parser object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_initialize(yaml_emitter_t *emitter); 
- 
-/** 
- * Destroy an emitter. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_delete(yaml_emitter_t *emitter); 
- 
-/** 
- * Set a string output. 
- * 
- * The emitter will write the output characters to the @a output buffer of the 
- * size @a size.  The emitter will set @a size_written to the number of written 
- * bytes.  If the buffer is smaller than required, the emitter produces the 
- * YAML_WRITE_ERROR error. 
- * 
- * @param[in,out]   emitter         An emitter object. 
- * @param[in]       output          An output buffer. 
- * @param[in]       size            The buffer size. 
- * @param[in]       size_written    The pointer to save the number of written 
- *                                  bytes. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_output_string(yaml_emitter_t *emitter, 
-        unsigned char *output, size_t size, size_t *size_written); 
- 
-/** 
- * Set a file output. 
- * 
- * @a file should be a file object open for writing.  The application is 
- * responsible for closing the @a file. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       file        An open file. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file); 
- 
-/** 
- * Set a generic output handler. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       handler     A write handler. 
- * @param[in]       data        Any application data for passing to the write 
- *                              handler. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_output(yaml_emitter_t *emitter, 
-        yaml_write_handler_t *handler, void *data); 
- 
-/** 
- * Set the output encoding. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       encoding    The output encoding. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding); 
- 
-/** 
- * Set if the output should be in the "canonical" format as in the YAML 
- * specification. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       canonical   If the output is canonical. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical); 
- 
-/** 
+
+    /** The last assigned anchor id. */
+    int last_anchor_id;
+
+    /** The currently emitted document. */
+    yaml_document_t *document;
+
+    /**
+     * @}
+     */
+
+} yaml_emitter_t;
+
+/**
+ * Initialize an emitter.
+ *
+ * This function creates a new emitter object.  An application is responsible
+ * for destroying the object using the yaml_emitter_delete() function.
+ *
+ * @param[out]      emitter     An empty parser object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_initialize(yaml_emitter_t *emitter);
+
+/**
+ * Destroy an emitter.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_delete(yaml_emitter_t *emitter);
+
+/**
+ * Set a string output.
+ *
+ * The emitter will write the output characters to the @a output buffer of the
+ * size @a size.  The emitter will set @a size_written to the number of written
+ * bytes.  If the buffer is smaller than required, the emitter produces the
+ * YAML_WRITE_ERROR error.
+ *
+ * @param[in,out]   emitter         An emitter object.
+ * @param[in]       output          An output buffer.
+ * @param[in]       size            The buffer size.
+ * @param[in]       size_written    The pointer to save the number of written
+ *                                  bytes.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_output_string(yaml_emitter_t *emitter,
+        unsigned char *output, size_t size, size_t *size_written);
+
+/**
+ * Set a file output.
+ *
+ * @a file should be a file object open for writing.  The application is
+ * responsible for closing the @a file.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       file        An open file.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file);
+
+/**
+ * Set a generic output handler.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       handler     A write handler.
+ * @param[in]       data        Any application data for passing to the write
+ *                              handler.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_output(yaml_emitter_t *emitter,
+        yaml_write_handler_t *handler, void *data);
+
+/**
+ * Set the output encoding.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       encoding    The output encoding.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding);
+
+/**
+ * Set if the output should be in the "canonical" format as in the YAML
+ * specification.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       canonical   If the output is canonical.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical);
+
+/**
  * Set the indentation increment.
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       indent      The indentation increment (1 < . < 10). 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent); 
- 
-/** 
- * Set the preferred line width. @c -1 means unlimited. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       width       The preferred line width. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_width(yaml_emitter_t *emitter, int width); 
- 
-/** 
- * Set if unescaped non-ASCII characters are allowed. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       unicode     If unescaped Unicode characters are allowed. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode); 
- 
-/** 
- * Set the preferred line break. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in]       line_break  The preferred line break. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break); 
- 
-/** 
- * Emit an event. 
- * 
- * The event object may be generated using the yaml_parser_parse() function. 
- * The emitter takes the responsibility for the event object and destroys its 
- * content after it is emitted. The event object is destroyed even if the 
- * function fails. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in,out]   event       An event object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-/** 
- * Start a YAML stream. 
- * 
- * This function should be used before yaml_emitter_dump() is called. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_open(yaml_emitter_t *emitter); 
- 
-/** 
- * Finish a YAML stream. 
- * 
- * This function should be used after yaml_emitter_dump() is called. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_close(yaml_emitter_t *emitter); 
- 
-/** 
- * Emit a YAML document. 
- * 
- * The documen object may be generated using the yaml_parser_load() function 
- * or the yaml_document_initialize() function.  The emitter takes the 
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       indent      The indentation increment (1 < . < 10).
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent);
+
+/**
+ * Set the preferred line width. @c -1 means unlimited.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       width       The preferred line width.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_width(yaml_emitter_t *emitter, int width);
+
+/**
+ * Set if unescaped non-ASCII characters are allowed.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       unicode     If unescaped Unicode characters are allowed.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode);
+
+/**
+ * Set the preferred line break.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in]       line_break  The preferred line break.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break);
+
+/**
+ * Emit an event.
+ *
+ * The event object may be generated using the yaml_parser_parse() function.
+ * The emitter takes the responsibility for the event object and destroys its
+ * content after it is emitted. The event object is destroyed even if the
+ * function fails.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in,out]   event       An event object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event);
+
+/**
+ * Start a YAML stream.
+ *
+ * This function should be used before yaml_emitter_dump() is called.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_open(yaml_emitter_t *emitter);
+
+/**
+ * Finish a YAML stream.
+ *
+ * This function should be used after yaml_emitter_dump() is called.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_close(yaml_emitter_t *emitter);
+
+/**
+ * Emit a YAML document.
+ *
+ * The documen object may be generated using the yaml_parser_load() function
+ * or the yaml_document_initialize() function.  The emitter takes the
  * responsibility for the document object and destroys its content after
  * it is emitted. The document object is destroyed even if the function fails.
- * 
- * @param[in,out]   emitter     An emitter object. 
- * @param[in,out]   document    A document object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document); 
- 
-/** 
- * Flush the accumulated characters to the output. 
- * 
- * @param[in,out]   emitter     An emitter object. 
- * 
- * @returns @c 1 if the function succeeded, @c 0 on error. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_flush(yaml_emitter_t *emitter); 
- 
-/** @} */ 
- 
-#ifdef __cplusplus 
-} 
-#endif 
- 
-#endif /* #ifndef YAML_H */ 
- 
+ *
+ * @param[in,out]   emitter     An emitter object.
+ * @param[in,out]   document    A document object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document);
+
+/**
+ * Flush the accumulated characters to the output.
+ *
+ * @param[in,out]   emitter     An emitter object.
+ *
+ * @returns @c 1 if the function succeeded, @c 0 on error.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_flush(yaml_emitter_t *emitter);
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* #ifndef YAML_H */
+
diff --git a/contrib/libs/yaml/src/api.c b/contrib/libs/yaml/src/api.c
index c237c83564..16f88bd762 100644
--- a/contrib/libs/yaml/src/api.c
+++ b/contrib/libs/yaml/src/api.c
@@ -1,1393 +1,1393 @@
- 
-#include "yaml_private.h" 
- 
-/* 
- * Get the library version. 
- */ 
- 
-YAML_DECLARE(const char *) 
-yaml_get_version_string(void) 
-{ 
-    return YAML_VERSION_STRING; 
-} 
- 
-/* 
- * Get the library version numbers. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_get_version(int *major, int *minor, int *patch) 
-{ 
-    *major = YAML_VERSION_MAJOR; 
-    *minor = YAML_VERSION_MINOR; 
-    *patch = YAML_VERSION_PATCH; 
-} 
- 
-/* 
- * Allocate a dynamic memory block. 
- */ 
- 
-YAML_DECLARE(void *) 
-yaml_malloc(size_t size) 
-{ 
-    return malloc(size ? size : 1); 
-} 
- 
-/* 
- * Reallocate a dynamic memory block. 
- */ 
- 
-YAML_DECLARE(void *) 
-yaml_realloc(void *ptr, size_t size) 
-{ 
-    return ptr ? realloc(ptr, size ? size : 1) : malloc(size ? size : 1); 
-} 
- 
-/* 
- * Free a dynamic memory block. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_free(void *ptr) 
-{ 
-    if (ptr) free(ptr); 
-} 
- 
-/* 
- * Duplicate a string. 
- */ 
- 
-YAML_DECLARE(yaml_char_t *) 
-yaml_strdup(const yaml_char_t *str) 
-{ 
-    if (!str) 
-        return NULL; 
- 
-    return (yaml_char_t *)strdup((char *)str); 
-} 
- 
-/* 
- * Extend a string. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_string_extend(yaml_char_t **start, 
-        yaml_char_t **pointer, yaml_char_t **end) 
-{ 
+
+#include "yaml_private.h"
+
+/*
+ * Get the library version.
+ */
+
+YAML_DECLARE(const char *)
+yaml_get_version_string(void)
+{
+    return YAML_VERSION_STRING;
+}
+
+/*
+ * Get the library version numbers.
+ */
+
+YAML_DECLARE(void)
+yaml_get_version(int *major, int *minor, int *patch)
+{
+    *major = YAML_VERSION_MAJOR;
+    *minor = YAML_VERSION_MINOR;
+    *patch = YAML_VERSION_PATCH;
+}
+
+/*
+ * Allocate a dynamic memory block.
+ */
+
+YAML_DECLARE(void *)
+yaml_malloc(size_t size)
+{
+    return malloc(size ? size : 1);
+}
+
+/*
+ * Reallocate a dynamic memory block.
+ */
+
+YAML_DECLARE(void *)
+yaml_realloc(void *ptr, size_t size)
+{
+    return ptr ? realloc(ptr, size ? size : 1) : malloc(size ? size : 1);
+}
+
+/*
+ * Free a dynamic memory block.
+ */
+
+YAML_DECLARE(void)
+yaml_free(void *ptr)
+{
+    if (ptr) free(ptr);
+}
+
+/*
+ * Duplicate a string.
+ */
+
+YAML_DECLARE(yaml_char_t *)
+yaml_strdup(const yaml_char_t *str)
+{
+    if (!str)
+        return NULL;
+
+    return (yaml_char_t *)strdup((char *)str);
+}
+
+/*
+ * Extend a string.
+ */
+
+YAML_DECLARE(int)
+yaml_string_extend(yaml_char_t **start,
+        yaml_char_t **pointer, yaml_char_t **end)
+{
     yaml_char_t *new_start = (yaml_char_t *)yaml_realloc((void*)*start, (*end - *start)*2);
- 
-    if (!new_start) return 0; 
- 
-    memset(new_start + (*end - *start), 0, *end - *start); 
- 
-    *pointer = new_start + (*pointer - *start); 
-    *end = new_start + (*end - *start)*2; 
-    *start = new_start; 
- 
-    return 1; 
-} 
- 
-/* 
- * Append a string B to a string A. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_string_join( 
-        yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end, 
+
+    if (!new_start) return 0;
+
+    memset(new_start + (*end - *start), 0, *end - *start);
+
+    *pointer = new_start + (*pointer - *start);
+    *end = new_start + (*end - *start)*2;
+    *start = new_start;
+
+    return 1;
+}
+
+/*
+ * Append a string B to a string A.
+ */
+
+YAML_DECLARE(int)
+yaml_string_join(
+        yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end,
         yaml_char_t **b_start, yaml_char_t **b_pointer, SHIM(yaml_char_t **b_end))
-{ 
+{
     UNUSED_PARAM(b_end)
-    if (*b_start == *b_pointer) 
-        return 1; 
- 
-    while (*a_end - *a_pointer <= *b_pointer - *b_start) { 
-        if (!yaml_string_extend(a_start, a_pointer, a_end)) 
-            return 0; 
-    } 
- 
-    memcpy(*a_pointer, *b_start, *b_pointer - *b_start); 
-    *a_pointer += *b_pointer - *b_start; 
- 
-    return 1; 
-} 
- 
-/* 
- * Extend a stack. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_stack_extend(void **start, void **top, void **end) 
-{ 
+    if (*b_start == *b_pointer)
+        return 1;
+
+    while (*a_end - *a_pointer <= *b_pointer - *b_start) {
+        if (!yaml_string_extend(a_start, a_pointer, a_end))
+            return 0;
+    }
+
+    memcpy(*a_pointer, *b_start, *b_pointer - *b_start);
+    *a_pointer += *b_pointer - *b_start;
+
+    return 1;
+}
+
+/*
+ * Extend a stack.
+ */
+
+YAML_DECLARE(int)
+yaml_stack_extend(void **start, void **top, void **end)
+{
     void *new_start;
- 
+
     if ((char *)*end - (char *)*start >= INT_MAX / 2)
 	return 0;
 
     new_start = yaml_realloc(*start, ((char *)*end - (char *)*start)*2);
 
-    if (!new_start) return 0; 
- 
-    *top = (char *)new_start + ((char *)*top - (char *)*start); 
-    *end = (char *)new_start + ((char *)*end - (char *)*start)*2; 
-    *start = new_start; 
- 
-    return 1; 
-} 
- 
-/* 
- * Extend or move a queue. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_queue_extend(void **start, void **head, void **tail, void **end) 
-{ 
-    /* Check if we need to resize the queue. */ 
- 
-    if (*start == *head && *tail == *end) { 
-        void *new_start = yaml_realloc(*start, 
-                ((char *)*end - (char *)*start)*2); 
- 
-        if (!new_start) return 0; 
- 
-        *head = (char *)new_start + ((char *)*head - (char *)*start); 
-        *tail = (char *)new_start + ((char *)*tail - (char *)*start); 
-        *end = (char *)new_start + ((char *)*end - (char *)*start)*2; 
-        *start = new_start; 
-    } 
- 
-    /* Check if we need to move the queue at the beginning of the buffer. */ 
- 
-    if (*tail == *end) { 
-        if (*head != *tail) { 
-            memmove(*start, *head, (char *)*tail - (char *)*head); 
-        } 
-        *tail = (char *)*tail - (char *)*head + (char *)*start; 
-        *head = *start; 
-    } 
- 
-    return 1; 
-} 
- 
- 
-/* 
- * Create a new parser object. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_initialize(yaml_parser_t *parser) 
-{ 
-    assert(parser);     /* Non-NULL parser object expected. */ 
- 
-    memset(parser, 0, sizeof(yaml_parser_t)); 
-    if (!BUFFER_INIT(parser, parser->raw_buffer, INPUT_RAW_BUFFER_SIZE)) 
-        goto error; 
-    if (!BUFFER_INIT(parser, parser->buffer, INPUT_BUFFER_SIZE)) 
-        goto error; 
+    if (!new_start) return 0;
+
+    *top = (char *)new_start + ((char *)*top - (char *)*start);
+    *end = (char *)new_start + ((char *)*end - (char *)*start)*2;
+    *start = new_start;
+
+    return 1;
+}
+
+/*
+ * Extend or move a queue.
+ */
+
+YAML_DECLARE(int)
+yaml_queue_extend(void **start, void **head, void **tail, void **end)
+{
+    /* Check if we need to resize the queue. */
+
+    if (*start == *head && *tail == *end) {
+        void *new_start = yaml_realloc(*start,
+                ((char *)*end - (char *)*start)*2);
+
+        if (!new_start) return 0;
+
+        *head = (char *)new_start + ((char *)*head - (char *)*start);
+        *tail = (char *)new_start + ((char *)*tail - (char *)*start);
+        *end = (char *)new_start + ((char *)*end - (char *)*start)*2;
+        *start = new_start;
+    }
+
+    /* Check if we need to move the queue at the beginning of the buffer. */
+
+    if (*tail == *end) {
+        if (*head != *tail) {
+            memmove(*start, *head, (char *)*tail - (char *)*head);
+        }
+        *tail = (char *)*tail - (char *)*head + (char *)*start;
+        *head = *start;
+    }
+
+    return 1;
+}
+
+
+/*
+ * Create a new parser object.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_initialize(yaml_parser_t *parser)
+{
+    assert(parser);     /* Non-NULL parser object expected. */
+
+    memset(parser, 0, sizeof(yaml_parser_t));
+    if (!BUFFER_INIT(parser, parser->raw_buffer, INPUT_RAW_BUFFER_SIZE))
+        goto error;
+    if (!BUFFER_INIT(parser, parser->buffer, INPUT_BUFFER_SIZE))
+        goto error;
     if (!QUEUE_INIT(parser, parser->tokens, INITIAL_QUEUE_SIZE, yaml_token_t*))
-        goto error; 
+        goto error;
     if (!STACK_INIT(parser, parser->indents, int*))
-        goto error; 
+        goto error;
     if (!STACK_INIT(parser, parser->simple_keys, yaml_simple_key_t*))
-        goto error; 
+        goto error;
     if (!STACK_INIT(parser, parser->states, yaml_parser_state_t*))
-        goto error; 
+        goto error;
     if (!STACK_INIT(parser, parser->marks, yaml_mark_t*))
-        goto error; 
+        goto error;
     if (!STACK_INIT(parser, parser->tag_directives, yaml_tag_directive_t*))
-        goto error; 
- 
-    return 1; 
- 
-error: 
- 
-    BUFFER_DEL(parser, parser->raw_buffer); 
-    BUFFER_DEL(parser, parser->buffer); 
-    QUEUE_DEL(parser, parser->tokens); 
-    STACK_DEL(parser, parser->indents); 
-    STACK_DEL(parser, parser->simple_keys); 
-    STACK_DEL(parser, parser->states); 
-    STACK_DEL(parser, parser->marks); 
-    STACK_DEL(parser, parser->tag_directives); 
- 
-    return 0; 
-} 
- 
-/* 
- * Destroy a parser object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_delete(yaml_parser_t *parser) 
-{ 
-    assert(parser); /* Non-NULL parser object expected. */ 
- 
-    BUFFER_DEL(parser, parser->raw_buffer); 
-    BUFFER_DEL(parser, parser->buffer); 
-    while (!QUEUE_EMPTY(parser, parser->tokens)) { 
-        yaml_token_delete(&DEQUEUE(parser, parser->tokens)); 
-    } 
-    QUEUE_DEL(parser, parser->tokens); 
-    STACK_DEL(parser, parser->indents); 
-    STACK_DEL(parser, parser->simple_keys); 
-    STACK_DEL(parser, parser->states); 
-    STACK_DEL(parser, parser->marks); 
-    while (!STACK_EMPTY(parser, parser->tag_directives)) { 
-        yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives); 
-        yaml_free(tag_directive.handle); 
-        yaml_free(tag_directive.prefix); 
-    } 
-    STACK_DEL(parser, parser->tag_directives); 
- 
-    memset(parser, 0, sizeof(yaml_parser_t)); 
-} 
- 
-/* 
- * String read handler. 
- */ 
- 
-static int 
-yaml_string_read_handler(void *data, unsigned char *buffer, size_t size, 
-        size_t *size_read) 
-{ 
+        goto error;
+
+    return 1;
+
+error:
+
+    BUFFER_DEL(parser, parser->raw_buffer);
+    BUFFER_DEL(parser, parser->buffer);
+    QUEUE_DEL(parser, parser->tokens);
+    STACK_DEL(parser, parser->indents);
+    STACK_DEL(parser, parser->simple_keys);
+    STACK_DEL(parser, parser->states);
+    STACK_DEL(parser, parser->marks);
+    STACK_DEL(parser, parser->tag_directives);
+
+    return 0;
+}
+
+/*
+ * Destroy a parser object.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_delete(yaml_parser_t *parser)
+{
+    assert(parser); /* Non-NULL parser object expected. */
+
+    BUFFER_DEL(parser, parser->raw_buffer);
+    BUFFER_DEL(parser, parser->buffer);
+    while (!QUEUE_EMPTY(parser, parser->tokens)) {
+        yaml_token_delete(&DEQUEUE(parser, parser->tokens));
+    }
+    QUEUE_DEL(parser, parser->tokens);
+    STACK_DEL(parser, parser->indents);
+    STACK_DEL(parser, parser->simple_keys);
+    STACK_DEL(parser, parser->states);
+    STACK_DEL(parser, parser->marks);
+    while (!STACK_EMPTY(parser, parser->tag_directives)) {
+        yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives);
+        yaml_free(tag_directive.handle);
+        yaml_free(tag_directive.prefix);
+    }
+    STACK_DEL(parser, parser->tag_directives);
+
+    memset(parser, 0, sizeof(yaml_parser_t));
+}
+
+/*
+ * String read handler.
+ */
+
+static int
+yaml_string_read_handler(void *data, unsigned char *buffer, size_t size,
+        size_t *size_read)
+{
     yaml_parser_t *parser = (yaml_parser_t *)data;
- 
-    if (parser->input.string.current == parser->input.string.end) { 
-        *size_read = 0; 
-        return 1; 
-    } 
- 
-    if (size > (size_t)(parser->input.string.end 
-                - parser->input.string.current)) { 
-        size = parser->input.string.end - parser->input.string.current; 
-    } 
- 
-    memcpy(buffer, parser->input.string.current, size); 
-    parser->input.string.current += size; 
-    *size_read = size; 
-    return 1; 
-} 
- 
-/* 
- * File read handler. 
- */ 
- 
-static int 
-yaml_file_read_handler(void *data, unsigned char *buffer, size_t size, 
-        size_t *size_read) 
-{ 
+
+    if (parser->input.string.current == parser->input.string.end) {
+        *size_read = 0;
+        return 1;
+    }
+
+    if (size > (size_t)(parser->input.string.end
+                - parser->input.string.current)) {
+        size = parser->input.string.end - parser->input.string.current;
+    }
+
+    memcpy(buffer, parser->input.string.current, size);
+    parser->input.string.current += size;
+    *size_read = size;
+    return 1;
+}
+
+/*
+ * File read handler.
+ */
+
+static int
+yaml_file_read_handler(void *data, unsigned char *buffer, size_t size,
+        size_t *size_read)
+{
     yaml_parser_t *parser = (yaml_parser_t *)data;
- 
-    *size_read = fread(buffer, 1, size, parser->input.file); 
-    return !ferror(parser->input.file); 
-} 
- 
-/* 
- * Set a string input. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_input_string(yaml_parser_t *parser, 
-        const unsigned char *input, size_t size) 
-{ 
-    assert(parser); /* Non-NULL parser object expected. */ 
-    assert(!parser->read_handler);  /* You can set the source only once. */ 
-    assert(input);  /* Non-NULL input string expected. */ 
- 
-    parser->read_handler = yaml_string_read_handler; 
-    parser->read_handler_data = parser; 
- 
-    parser->input.string.start = input; 
-    parser->input.string.current = input; 
-    parser->input.string.end = input+size; 
-} 
- 
-/* 
- * Set a file input. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file) 
-{ 
-    assert(parser); /* Non-NULL parser object expected. */ 
-    assert(!parser->read_handler);  /* You can set the source only once. */ 
-    assert(file);   /* Non-NULL file object expected. */ 
- 
-    parser->read_handler = yaml_file_read_handler; 
-    parser->read_handler_data = parser; 
- 
-    parser->input.file = file; 
-} 
- 
-/* 
- * Set a generic input. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_input(yaml_parser_t *parser, 
-        yaml_read_handler_t *handler, void *data) 
-{ 
-    assert(parser); /* Non-NULL parser object expected. */ 
-    assert(!parser->read_handler);  /* You can set the source only once. */ 
-    assert(handler);    /* Non-NULL read handler expected. */ 
- 
-    parser->read_handler = handler; 
-    parser->read_handler_data = data; 
-} 
- 
-/* 
- * Set the source encoding. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding) 
-{ 
-    assert(parser); /* Non-NULL parser object expected. */ 
-    assert(!parser->encoding); /* Encoding is already set or detected. */ 
- 
-    parser->encoding = encoding; 
-} 
- 
-/* 
- * Create a new emitter object. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_initialize(yaml_emitter_t *emitter) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
- 
-    memset(emitter, 0, sizeof(yaml_emitter_t)); 
-    if (!BUFFER_INIT(emitter, emitter->buffer, OUTPUT_BUFFER_SIZE)) 
-        goto error; 
-    if (!BUFFER_INIT(emitter, emitter->raw_buffer, OUTPUT_RAW_BUFFER_SIZE)) 
-        goto error; 
+
+    *size_read = fread(buffer, 1, size, parser->input.file);
+    return !ferror(parser->input.file);
+}
+
+/*
+ * Set a string input.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_input_string(yaml_parser_t *parser,
+        const unsigned char *input, size_t size)
+{
+    assert(parser); /* Non-NULL parser object expected. */
+    assert(!parser->read_handler);  /* You can set the source only once. */
+    assert(input);  /* Non-NULL input string expected. */
+
+    parser->read_handler = yaml_string_read_handler;
+    parser->read_handler_data = parser;
+
+    parser->input.string.start = input;
+    parser->input.string.current = input;
+    parser->input.string.end = input+size;
+}
+
+/*
+ * Set a file input.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file)
+{
+    assert(parser); /* Non-NULL parser object expected. */
+    assert(!parser->read_handler);  /* You can set the source only once. */
+    assert(file);   /* Non-NULL file object expected. */
+
+    parser->read_handler = yaml_file_read_handler;
+    parser->read_handler_data = parser;
+
+    parser->input.file = file;
+}
+
+/*
+ * Set a generic input.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_input(yaml_parser_t *parser,
+        yaml_read_handler_t *handler, void *data)
+{
+    assert(parser); /* Non-NULL parser object expected. */
+    assert(!parser->read_handler);  /* You can set the source only once. */
+    assert(handler);    /* Non-NULL read handler expected. */
+
+    parser->read_handler = handler;
+    parser->read_handler_data = data;
+}
+
+/*
+ * Set the source encoding.
+ */
+
+YAML_DECLARE(void)
+yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding)
+{
+    assert(parser); /* Non-NULL parser object expected. */
+    assert(!parser->encoding); /* Encoding is already set or detected. */
+
+    parser->encoding = encoding;
+}
+
+/*
+ * Create a new emitter object.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_initialize(yaml_emitter_t *emitter)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    memset(emitter, 0, sizeof(yaml_emitter_t));
+    if (!BUFFER_INIT(emitter, emitter->buffer, OUTPUT_BUFFER_SIZE))
+        goto error;
+    if (!BUFFER_INIT(emitter, emitter->raw_buffer, OUTPUT_RAW_BUFFER_SIZE))
+        goto error;
     if (!STACK_INIT(emitter, emitter->states, yaml_emitter_state_t*))
-        goto error; 
+        goto error;
     if (!QUEUE_INIT(emitter, emitter->events, INITIAL_QUEUE_SIZE, yaml_event_t*))
-        goto error; 
+        goto error;
     if (!STACK_INIT(emitter, emitter->indents, int*))
-        goto error; 
+        goto error;
     if (!STACK_INIT(emitter, emitter->tag_directives, yaml_tag_directive_t*))
-        goto error; 
- 
-    return 1; 
- 
-error: 
- 
-    BUFFER_DEL(emitter, emitter->buffer); 
-    BUFFER_DEL(emitter, emitter->raw_buffer); 
-    STACK_DEL(emitter, emitter->states); 
-    QUEUE_DEL(emitter, emitter->events); 
-    STACK_DEL(emitter, emitter->indents); 
-    STACK_DEL(emitter, emitter->tag_directives); 
- 
-    return 0; 
-} 
- 
-/* 
- * Destroy an emitter object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_delete(yaml_emitter_t *emitter) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
- 
-    BUFFER_DEL(emitter, emitter->buffer); 
-    BUFFER_DEL(emitter, emitter->raw_buffer); 
-    STACK_DEL(emitter, emitter->states); 
-    while (!QUEUE_EMPTY(emitter, emitter->events)) { 
-        yaml_event_delete(&DEQUEUE(emitter, emitter->events)); 
-    } 
-    QUEUE_DEL(emitter, emitter->events); 
-    STACK_DEL(emitter, emitter->indents); 
-    while (!STACK_EMPTY(empty, emitter->tag_directives)) { 
-        yaml_tag_directive_t tag_directive = POP(emitter, emitter->tag_directives); 
-        yaml_free(tag_directive.handle); 
-        yaml_free(tag_directive.prefix); 
-    } 
-    STACK_DEL(emitter, emitter->tag_directives); 
-    yaml_free(emitter->anchors); 
- 
-    memset(emitter, 0, sizeof(yaml_emitter_t)); 
-} 
- 
-/* 
- * String write handler. 
- */ 
- 
-static int 
-yaml_string_write_handler(void *data, unsigned char *buffer, size_t size) 
-{ 
+        goto error;
+
+    return 1;
+
+error:
+
+    BUFFER_DEL(emitter, emitter->buffer);
+    BUFFER_DEL(emitter, emitter->raw_buffer);
+    STACK_DEL(emitter, emitter->states);
+    QUEUE_DEL(emitter, emitter->events);
+    STACK_DEL(emitter, emitter->indents);
+    STACK_DEL(emitter, emitter->tag_directives);
+
+    return 0;
+}
+
+/*
+ * Destroy an emitter object.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_delete(yaml_emitter_t *emitter)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    BUFFER_DEL(emitter, emitter->buffer);
+    BUFFER_DEL(emitter, emitter->raw_buffer);
+    STACK_DEL(emitter, emitter->states);
+    while (!QUEUE_EMPTY(emitter, emitter->events)) {
+        yaml_event_delete(&DEQUEUE(emitter, emitter->events));
+    }
+    QUEUE_DEL(emitter, emitter->events);
+    STACK_DEL(emitter, emitter->indents);
+    while (!STACK_EMPTY(empty, emitter->tag_directives)) {
+        yaml_tag_directive_t tag_directive = POP(emitter, emitter->tag_directives);
+        yaml_free(tag_directive.handle);
+        yaml_free(tag_directive.prefix);
+    }
+    STACK_DEL(emitter, emitter->tag_directives);
+    yaml_free(emitter->anchors);
+
+    memset(emitter, 0, sizeof(yaml_emitter_t));
+}
+
+/*
+ * String write handler.
+ */
+
+static int
+yaml_string_write_handler(void *data, unsigned char *buffer, size_t size)
+{
   yaml_emitter_t *emitter = (yaml_emitter_t *)data;
- 
+
     if (emitter->output.string.size - *emitter->output.string.size_written
-            < size) { 
-        memcpy(emitter->output.string.buffer 
-                + *emitter->output.string.size_written, 
-                buffer, 
-                emitter->output.string.size 
-                - *emitter->output.string.size_written); 
-        *emitter->output.string.size_written = emitter->output.string.size; 
-        return 0; 
-    } 
- 
-    memcpy(emitter->output.string.buffer 
-            + *emitter->output.string.size_written, buffer, size); 
-    *emitter->output.string.size_written += size; 
-    return 1; 
-} 
- 
-/* 
- * File write handler. 
- */ 
- 
-static int 
-yaml_file_write_handler(void *data, unsigned char *buffer, size_t size) 
-{ 
+            < size) {
+        memcpy(emitter->output.string.buffer
+                + *emitter->output.string.size_written,
+                buffer,
+                emitter->output.string.size
+                - *emitter->output.string.size_written);
+        *emitter->output.string.size_written = emitter->output.string.size;
+        return 0;
+    }
+
+    memcpy(emitter->output.string.buffer
+            + *emitter->output.string.size_written, buffer, size);
+    *emitter->output.string.size_written += size;
+    return 1;
+}
+
+/*
+ * File write handler.
+ */
+
+static int
+yaml_file_write_handler(void *data, unsigned char *buffer, size_t size)
+{
     yaml_emitter_t *emitter = (yaml_emitter_t *)data;
- 
-    return (fwrite(buffer, 1, size, emitter->output.file) == size); 
-} 
-/* 
- * Set a string output. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_output_string(yaml_emitter_t *emitter, 
-        unsigned char *output, size_t size, size_t *size_written) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
-    assert(!emitter->write_handler);    /* You can set the output only once. */ 
-    assert(output);     /* Non-NULL output string expected. */ 
- 
-    emitter->write_handler = yaml_string_write_handler; 
-    emitter->write_handler_data = emitter; 
- 
-    emitter->output.string.buffer = output; 
-    emitter->output.string.size = size; 
-    emitter->output.string.size_written = size_written; 
-    *size_written = 0; 
-} 
- 
-/* 
- * Set a file output. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
-    assert(!emitter->write_handler);    /* You can set the output only once. */ 
-    assert(file);       /* Non-NULL file object expected. */ 
- 
-    emitter->write_handler = yaml_file_write_handler; 
-    emitter->write_handler_data = emitter; 
- 
-    emitter->output.file = file; 
-} 
- 
-/* 
- * Set a generic output handler. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_output(yaml_emitter_t *emitter, 
-        yaml_write_handler_t *handler, void *data) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
-    assert(!emitter->write_handler);    /* You can set the output only once. */ 
-    assert(handler);    /* Non-NULL handler object expected. */ 
- 
-    emitter->write_handler = handler; 
-    emitter->write_handler_data = data; 
-} 
- 
-/* 
- * Set the output encoding. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
-    assert(!emitter->encoding);     /* You can set encoding only once. */ 
- 
-    emitter->encoding = encoding; 
-} 
- 
-/* 
- * Set the canonical output style. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
- 
-    emitter->canonical = (canonical != 0); 
-} 
- 
-/* 
- * Set the indentation increment. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
- 
-    emitter->best_indent = (1 < indent && indent < 10) ? indent : 2; 
-} 
- 
-/* 
- * Set the preferred line width. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_width(yaml_emitter_t *emitter, int width) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
- 
-    emitter->best_width = (width >= 0) ? width : -1; 
-} 
- 
-/* 
- * Set if unescaped non-ASCII characters are allowed. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
- 
-    emitter->unicode = (unicode != 0); 
-} 
- 
-/* 
- * Set the preferred line break character. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break) 
-{ 
-    assert(emitter);    /* Non-NULL emitter object expected. */ 
- 
-    emitter->line_break = line_break; 
-} 
- 
-/* 
- * Destroy a token object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_token_delete(yaml_token_t *token) 
-{ 
-    assert(token);  /* Non-NULL token object expected. */ 
- 
-    switch (token->type) 
-    { 
-        case YAML_TAG_DIRECTIVE_TOKEN: 
-            yaml_free(token->data.tag_directive.handle); 
-            yaml_free(token->data.tag_directive.prefix); 
-            break; 
- 
-        case YAML_ALIAS_TOKEN: 
-            yaml_free(token->data.alias.value); 
-            break; 
- 
-        case YAML_ANCHOR_TOKEN: 
-            yaml_free(token->data.anchor.value); 
-            break; 
- 
-        case YAML_TAG_TOKEN: 
-            yaml_free(token->data.tag.handle); 
-            yaml_free(token->data.tag.suffix); 
-            break; 
- 
-        case YAML_SCALAR_TOKEN: 
-            yaml_free(token->data.scalar.value); 
-            break; 
- 
-        default: 
-            break; 
-    } 
- 
-    memset(token, 0, sizeof(yaml_token_t)); 
-} 
- 
-/* 
- * Check if a string is a valid UTF-8 sequence. 
- * 
- * Check 'reader.c' for more details on UTF-8 encoding. 
- */ 
- 
-static int 
+
+    return (fwrite(buffer, 1, size, emitter->output.file) == size);
+}
+/*
+ * Set a string output.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_output_string(yaml_emitter_t *emitter,
+        unsigned char *output, size_t size, size_t *size_written)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+    assert(!emitter->write_handler);    /* You can set the output only once. */
+    assert(output);     /* Non-NULL output string expected. */
+
+    emitter->write_handler = yaml_string_write_handler;
+    emitter->write_handler_data = emitter;
+
+    emitter->output.string.buffer = output;
+    emitter->output.string.size = size;
+    emitter->output.string.size_written = size_written;
+    *size_written = 0;
+}
+
+/*
+ * Set a file output.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+    assert(!emitter->write_handler);    /* You can set the output only once. */
+    assert(file);       /* Non-NULL file object expected. */
+
+    emitter->write_handler = yaml_file_write_handler;
+    emitter->write_handler_data = emitter;
+
+    emitter->output.file = file;
+}
+
+/*
+ * Set a generic output handler.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_output(yaml_emitter_t *emitter,
+        yaml_write_handler_t *handler, void *data)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+    assert(!emitter->write_handler);    /* You can set the output only once. */
+    assert(handler);    /* Non-NULL handler object expected. */
+
+    emitter->write_handler = handler;
+    emitter->write_handler_data = data;
+}
+
+/*
+ * Set the output encoding.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+    assert(!emitter->encoding);     /* You can set encoding only once. */
+
+    emitter->encoding = encoding;
+}
+
+/*
+ * Set the canonical output style.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    emitter->canonical = (canonical != 0);
+}
+
+/*
+ * Set the indentation increment.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    emitter->best_indent = (1 < indent && indent < 10) ? indent : 2;
+}
+
+/*
+ * Set the preferred line width.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_width(yaml_emitter_t *emitter, int width)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    emitter->best_width = (width >= 0) ? width : -1;
+}
+
+/*
+ * Set if unescaped non-ASCII characters are allowed.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    emitter->unicode = (unicode != 0);
+}
+
+/*
+ * Set the preferred line break character.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    emitter->line_break = line_break;
+}
+
+/*
+ * Destroy a token object.
+ */
+
+YAML_DECLARE(void)
+yaml_token_delete(yaml_token_t *token)
+{
+    assert(token);  /* Non-NULL token object expected. */
+
+    switch (token->type)
+    {
+        case YAML_TAG_DIRECTIVE_TOKEN:
+            yaml_free(token->data.tag_directive.handle);
+            yaml_free(token->data.tag_directive.prefix);
+            break;
+
+        case YAML_ALIAS_TOKEN:
+            yaml_free(token->data.alias.value);
+            break;
+
+        case YAML_ANCHOR_TOKEN:
+            yaml_free(token->data.anchor.value);
+            break;
+
+        case YAML_TAG_TOKEN:
+            yaml_free(token->data.tag.handle);
+            yaml_free(token->data.tag.suffix);
+            break;
+
+        case YAML_SCALAR_TOKEN:
+            yaml_free(token->data.scalar.value);
+            break;
+
+        default:
+            break;
+    }
+
+    memset(token, 0, sizeof(yaml_token_t));
+}
+
+/*
+ * Check if a string is a valid UTF-8 sequence.
+ *
+ * Check 'reader.c' for more details on UTF-8 encoding.
+ */
+
+static int
 yaml_check_utf8(const yaml_char_t *start, size_t length)
-{ 
+{
     const yaml_char_t *end = start+length;
     const yaml_char_t *pointer = start;
- 
-    while (pointer < end) { 
-        unsigned char octet; 
-        unsigned int width; 
-        unsigned int value; 
-        size_t k; 
- 
-        octet = pointer[0]; 
-        width = (octet & 0x80) == 0x00 ? 1 : 
-                (octet & 0xE0) == 0xC0 ? 2 : 
-                (octet & 0xF0) == 0xE0 ? 3 : 
-                (octet & 0xF8) == 0xF0 ? 4 : 0; 
-        value = (octet & 0x80) == 0x00 ? octet & 0x7F : 
-                (octet & 0xE0) == 0xC0 ? octet & 0x1F : 
-                (octet & 0xF0) == 0xE0 ? octet & 0x0F : 
-                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; 
-        if (!width) return 0; 
-        if (pointer+width > end) return 0; 
-        for (k = 1; k < width; k ++) { 
-            octet = pointer[k]; 
-            if ((octet & 0xC0) != 0x80) return 0; 
-            value = (value << 6) + (octet & 0x3F); 
-        } 
-        if (!((width == 1) || 
-            (width == 2 && value >= 0x80) || 
-            (width == 3 && value >= 0x800) || 
-            (width == 4 && value >= 0x10000))) return 0; 
- 
-        pointer += width; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Create STREAM-START. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_stream_start_event_initialize(yaml_event_t *event, 
-        yaml_encoding_t encoding) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(event);  /* Non-NULL event object is expected. */ 
- 
-    STREAM_START_EVENT_INIT(*event, encoding, mark, mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Create STREAM-END. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_stream_end_event_initialize(yaml_event_t *event) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(event);  /* Non-NULL event object is expected. */ 
- 
-    STREAM_END_EVENT_INIT(*event, mark, mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Create DOCUMENT-START. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_start_event_initialize(yaml_event_t *event, 
-        yaml_version_directive_t *version_directive, 
-        yaml_tag_directive_t *tag_directives_start, 
-        yaml_tag_directive_t *tag_directives_end, 
-        int implicit) 
-{ 
-    struct { 
-        yaml_error_type_t error; 
-    } context; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_version_directive_t *version_directive_copy = NULL; 
-    struct { 
-        yaml_tag_directive_t *start; 
-        yaml_tag_directive_t *end; 
-        yaml_tag_directive_t *top; 
-    } tag_directives_copy = { NULL, NULL, NULL }; 
-    yaml_tag_directive_t value = { NULL, NULL }; 
- 
-    assert(event);          /* Non-NULL event object is expected. */ 
-    assert((tag_directives_start && tag_directives_end) || 
-            (tag_directives_start == tag_directives_end)); 
-                            /* Valid tag directives are expected. */ 
- 
-    if (version_directive) { 
+
+    while (pointer < end) {
+        unsigned char octet;
+        unsigned int width;
+        unsigned int value;
+        size_t k;
+
+        octet = pointer[0];
+        width = (octet & 0x80) == 0x00 ? 1 :
+                (octet & 0xE0) == 0xC0 ? 2 :
+                (octet & 0xF0) == 0xE0 ? 3 :
+                (octet & 0xF8) == 0xF0 ? 4 : 0;
+        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+        if (!width) return 0;
+        if (pointer+width > end) return 0;
+        for (k = 1; k < width; k ++) {
+            octet = pointer[k];
+            if ((octet & 0xC0) != 0x80) return 0;
+            value = (value << 6) + (octet & 0x3F);
+        }
+        if (!((width == 1) ||
+            (width == 2 && value >= 0x80) ||
+            (width == 3 && value >= 0x800) ||
+            (width == 4 && value >= 0x10000))) return 0;
+
+        pointer += width;
+    }
+
+    return 1;
+}
+
+/*
+ * Create STREAM-START.
+ */
+
+YAML_DECLARE(int)
+yaml_stream_start_event_initialize(yaml_event_t *event,
+        yaml_encoding_t encoding)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(event);  /* Non-NULL event object is expected. */
+
+    STREAM_START_EVENT_INIT(*event, encoding, mark, mark);
+
+    return 1;
+}
+
+/*
+ * Create STREAM-END.
+ */
+
+YAML_DECLARE(int)
+yaml_stream_end_event_initialize(yaml_event_t *event)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(event);  /* Non-NULL event object is expected. */
+
+    STREAM_END_EVENT_INIT(*event, mark, mark);
+
+    return 1;
+}
+
+/*
+ * Create DOCUMENT-START.
+ */
+
+YAML_DECLARE(int)
+yaml_document_start_event_initialize(yaml_event_t *event,
+        yaml_version_directive_t *version_directive,
+        yaml_tag_directive_t *tag_directives_start,
+        yaml_tag_directive_t *tag_directives_end,
+        int implicit)
+{
+    struct {
+        yaml_error_type_t error;
+    } context;
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_version_directive_t *version_directive_copy = NULL;
+    struct {
+        yaml_tag_directive_t *start;
+        yaml_tag_directive_t *end;
+        yaml_tag_directive_t *top;
+    } tag_directives_copy = { NULL, NULL, NULL };
+    yaml_tag_directive_t value = { NULL, NULL };
+
+    assert(event);          /* Non-NULL event object is expected. */
+    assert((tag_directives_start && tag_directives_end) ||
+            (tag_directives_start == tag_directives_end));
+                            /* Valid tag directives are expected. */
+
+    if (version_directive) {
         version_directive_copy = YAML_MALLOC_STATIC(yaml_version_directive_t);
-        if (!version_directive_copy) goto error; 
-        version_directive_copy->major = version_directive->major; 
-        version_directive_copy->minor = version_directive->minor; 
-    } 
- 
-    if (tag_directives_start != tag_directives_end) { 
-        yaml_tag_directive_t *tag_directive; 
+        if (!version_directive_copy) goto error;
+        version_directive_copy->major = version_directive->major;
+        version_directive_copy->minor = version_directive->minor;
+    }
+
+    if (tag_directives_start != tag_directives_end) {
+        yaml_tag_directive_t *tag_directive;
         if (!STACK_INIT(&context, tag_directives_copy, yaml_tag_directive_t*))
-            goto error; 
-        for (tag_directive = tag_directives_start; 
-                tag_directive != tag_directives_end; tag_directive ++) { 
-            assert(tag_directive->handle); 
-            assert(tag_directive->prefix); 
-            if (!yaml_check_utf8(tag_directive->handle, 
-                        strlen((char *)tag_directive->handle))) 
-                goto error; 
-            if (!yaml_check_utf8(tag_directive->prefix, 
-                        strlen((char *)tag_directive->prefix))) 
-                goto error; 
-            value.handle = yaml_strdup(tag_directive->handle); 
-            value.prefix = yaml_strdup(tag_directive->prefix); 
-            if (!value.handle || !value.prefix) goto error; 
-            if (!PUSH(&context, tag_directives_copy, value)) 
-                goto error; 
-            value.handle = NULL; 
-            value.prefix = NULL; 
-        } 
-    } 
- 
-    DOCUMENT_START_EVENT_INIT(*event, version_directive_copy, 
-            tag_directives_copy.start, tag_directives_copy.top, 
-            implicit, mark, mark); 
- 
-    return 1; 
- 
-error: 
-    yaml_free(version_directive_copy); 
-    while (!STACK_EMPTY(context, tag_directives_copy)) { 
-        yaml_tag_directive_t value = POP(context, tag_directives_copy); 
-        yaml_free(value.handle); 
-        yaml_free(value.prefix); 
-    } 
-    STACK_DEL(context, tag_directives_copy); 
-    yaml_free(value.handle); 
-    yaml_free(value.prefix); 
- 
-    return 0; 
-} 
- 
-/* 
- * Create DOCUMENT-END. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_end_event_initialize(yaml_event_t *event, int implicit) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(event);      /* Non-NULL emitter object is expected. */ 
- 
-    DOCUMENT_END_EVENT_INIT(*event, implicit, mark, mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Create ALIAS. 
- */ 
- 
-YAML_DECLARE(int) 
+            goto error;
+        for (tag_directive = tag_directives_start;
+                tag_directive != tag_directives_end; tag_directive ++) {
+            assert(tag_directive->handle);
+            assert(tag_directive->prefix);
+            if (!yaml_check_utf8(tag_directive->handle,
+                        strlen((char *)tag_directive->handle)))
+                goto error;
+            if (!yaml_check_utf8(tag_directive->prefix,
+                        strlen((char *)tag_directive->prefix)))
+                goto error;
+            value.handle = yaml_strdup(tag_directive->handle);
+            value.prefix = yaml_strdup(tag_directive->prefix);
+            if (!value.handle || !value.prefix) goto error;
+            if (!PUSH(&context, tag_directives_copy, value))
+                goto error;
+            value.handle = NULL;
+            value.prefix = NULL;
+        }
+    }
+
+    DOCUMENT_START_EVENT_INIT(*event, version_directive_copy,
+            tag_directives_copy.start, tag_directives_copy.top,
+            implicit, mark, mark);
+
+    return 1;
+
+error:
+    yaml_free(version_directive_copy);
+    while (!STACK_EMPTY(context, tag_directives_copy)) {
+        yaml_tag_directive_t value = POP(context, tag_directives_copy);
+        yaml_free(value.handle);
+        yaml_free(value.prefix);
+    }
+    STACK_DEL(context, tag_directives_copy);
+    yaml_free(value.handle);
+    yaml_free(value.prefix);
+
+    return 0;
+}
+
+/*
+ * Create DOCUMENT-END.
+ */
+
+YAML_DECLARE(int)
+yaml_document_end_event_initialize(yaml_event_t *event, int implicit)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(event);      /* Non-NULL emitter object is expected. */
+
+    DOCUMENT_END_EVENT_INIT(*event, implicit, mark, mark);
+
+    return 1;
+}
+
+/*
+ * Create ALIAS.
+ */
+
+YAML_DECLARE(int)
 yaml_alias_event_initialize(yaml_event_t *event, const yaml_char_t *anchor)
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_char_t *anchor_copy = NULL; 
- 
-    assert(event);      /* Non-NULL event object is expected. */ 
-    assert(anchor);     /* Non-NULL anchor is expected. */ 
- 
-    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0; 
- 
-    anchor_copy = yaml_strdup(anchor); 
-    if (!anchor_copy) 
-        return 0; 
- 
-    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Create SCALAR. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_scalar_event_initialize(yaml_event_t *event, 
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_char_t *anchor_copy = NULL;
+
+    assert(event);      /* Non-NULL event object is expected. */
+    assert(anchor);     /* Non-NULL anchor is expected. */
+
+    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0;
+
+    anchor_copy = yaml_strdup(anchor);
+    if (!anchor_copy)
+        return 0;
+
+    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark);
+
+    return 1;
+}
+
+/*
+ * Create SCALAR.
+ */
+
+YAML_DECLARE(int)
+yaml_scalar_event_initialize(yaml_event_t *event,
         const yaml_char_t *anchor, const yaml_char_t *tag,
         const yaml_char_t *value, int length,
-        int plain_implicit, int quoted_implicit, 
-        yaml_scalar_style_t style) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_char_t *anchor_copy = NULL; 
-    yaml_char_t *tag_copy = NULL; 
-    yaml_char_t *value_copy = NULL; 
- 
-    assert(event);      /* Non-NULL event object is expected. */ 
-    assert(value);      /* Non-NULL anchor is expected. */ 
- 
-    if (anchor) { 
-        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; 
-        anchor_copy = yaml_strdup(anchor); 
-        if (!anchor_copy) goto error; 
-    } 
- 
-    if (tag) { 
-        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; 
-        tag_copy = yaml_strdup(tag); 
-        if (!tag_copy) goto error; 
-    } 
- 
-    if (length < 0) { 
-        length = strlen((char *)value); 
-    } 
- 
-    if (!yaml_check_utf8(value, length)) goto error; 
+        int plain_implicit, int quoted_implicit,
+        yaml_scalar_style_t style)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_char_t *anchor_copy = NULL;
+    yaml_char_t *tag_copy = NULL;
+    yaml_char_t *value_copy = NULL;
+
+    assert(event);      /* Non-NULL event object is expected. */
+    assert(value);      /* Non-NULL anchor is expected. */
+
+    if (anchor) {
+        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;
+        anchor_copy = yaml_strdup(anchor);
+        if (!anchor_copy) goto error;
+    }
+
+    if (tag) {
+        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
+        tag_copy = yaml_strdup(tag);
+        if (!tag_copy) goto error;
+    }
+
+    if (length < 0) {
+        length = strlen((char *)value);
+    }
+
+    if (!yaml_check_utf8(value, length)) goto error;
     value_copy = YAML_MALLOC(length+1);
-    if (!value_copy) goto error; 
-    memcpy(value_copy, value, length); 
-    value_copy[length] = '\0'; 
- 
-    SCALAR_EVENT_INIT(*event, anchor_copy, tag_copy, value_copy, length, 
-            plain_implicit, quoted_implicit, style, mark, mark); 
- 
-    return 1; 
- 
-error: 
-    yaml_free(anchor_copy); 
-    yaml_free(tag_copy); 
-    yaml_free(value_copy); 
- 
-    return 0; 
-} 
- 
-/* 
- * Create SEQUENCE-START. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_sequence_start_event_initialize(yaml_event_t *event, 
+    if (!value_copy) goto error;
+    memcpy(value_copy, value, length);
+    value_copy[length] = '\0';
+
+    SCALAR_EVENT_INIT(*event, anchor_copy, tag_copy, value_copy, length,
+            plain_implicit, quoted_implicit, style, mark, mark);
+
+    return 1;
+
+error:
+    yaml_free(anchor_copy);
+    yaml_free(tag_copy);
+    yaml_free(value_copy);
+
+    return 0;
+}
+
+/*
+ * Create SEQUENCE-START.
+ */
+
+YAML_DECLARE(int)
+yaml_sequence_start_event_initialize(yaml_event_t *event,
         const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
-        yaml_sequence_style_t style) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_char_t *anchor_copy = NULL; 
-    yaml_char_t *tag_copy = NULL; 
- 
-    assert(event);      /* Non-NULL event object is expected. */ 
- 
-    if (anchor) { 
-        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; 
-        anchor_copy = yaml_strdup(anchor); 
-        if (!anchor_copy) goto error; 
-    } 
- 
-    if (tag) { 
-        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; 
-        tag_copy = yaml_strdup(tag); 
-        if (!tag_copy) goto error; 
-    } 
- 
-    SEQUENCE_START_EVENT_INIT(*event, anchor_copy, tag_copy, 
-            implicit, style, mark, mark); 
- 
-    return 1; 
- 
-error: 
-    yaml_free(anchor_copy); 
-    yaml_free(tag_copy); 
- 
-    return 0; 
-} 
- 
-/* 
- * Create SEQUENCE-END. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_sequence_end_event_initialize(yaml_event_t *event) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(event);      /* Non-NULL event object is expected. */ 
- 
-    SEQUENCE_END_EVENT_INIT(*event, mark, mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Create MAPPING-START. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_mapping_start_event_initialize(yaml_event_t *event, 
+        yaml_sequence_style_t style)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_char_t *anchor_copy = NULL;
+    yaml_char_t *tag_copy = NULL;
+
+    assert(event);      /* Non-NULL event object is expected. */
+
+    if (anchor) {
+        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;
+        anchor_copy = yaml_strdup(anchor);
+        if (!anchor_copy) goto error;
+    }
+
+    if (tag) {
+        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
+        tag_copy = yaml_strdup(tag);
+        if (!tag_copy) goto error;
+    }
+
+    SEQUENCE_START_EVENT_INIT(*event, anchor_copy, tag_copy,
+            implicit, style, mark, mark);
+
+    return 1;
+
+error:
+    yaml_free(anchor_copy);
+    yaml_free(tag_copy);
+
+    return 0;
+}
+
+/*
+ * Create SEQUENCE-END.
+ */
+
+YAML_DECLARE(int)
+yaml_sequence_end_event_initialize(yaml_event_t *event)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(event);      /* Non-NULL event object is expected. */
+
+    SEQUENCE_END_EVENT_INIT(*event, mark, mark);
+
+    return 1;
+}
+
+/*
+ * Create MAPPING-START.
+ */
+
+YAML_DECLARE(int)
+yaml_mapping_start_event_initialize(yaml_event_t *event,
         const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
-        yaml_mapping_style_t style) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_char_t *anchor_copy = NULL; 
-    yaml_char_t *tag_copy = NULL; 
- 
-    assert(event);      /* Non-NULL event object is expected. */ 
- 
-    if (anchor) { 
-        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; 
-        anchor_copy = yaml_strdup(anchor); 
-        if (!anchor_copy) goto error; 
-    } 
- 
-    if (tag) { 
-        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; 
-        tag_copy = yaml_strdup(tag); 
-        if (!tag_copy) goto error; 
-    } 
- 
-    MAPPING_START_EVENT_INIT(*event, anchor_copy, tag_copy, 
-            implicit, style, mark, mark); 
- 
-    return 1; 
- 
-error: 
-    yaml_free(anchor_copy); 
-    yaml_free(tag_copy); 
- 
-    return 0; 
-} 
- 
-/* 
- * Create MAPPING-END. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_mapping_end_event_initialize(yaml_event_t *event) 
-{ 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(event);      /* Non-NULL event object is expected. */ 
- 
-    MAPPING_END_EVENT_INIT(*event, mark, mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Destroy an event object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_event_delete(yaml_event_t *event) 
-{ 
-    yaml_tag_directive_t *tag_directive; 
- 
-    assert(event);  /* Non-NULL event object expected. */ 
- 
-    switch (event->type) 
-    { 
-        case YAML_DOCUMENT_START_EVENT: 
-            yaml_free(event->data.document_start.version_directive); 
-            for (tag_directive = event->data.document_start.tag_directives.start; 
-                    tag_directive != event->data.document_start.tag_directives.end; 
-                    tag_directive++) { 
-                yaml_free(tag_directive->handle); 
-                yaml_free(tag_directive->prefix); 
-            } 
-            yaml_free(event->data.document_start.tag_directives.start); 
-            break; 
- 
-        case YAML_ALIAS_EVENT: 
-            yaml_free(event->data.alias.anchor); 
-            break; 
- 
-        case YAML_SCALAR_EVENT: 
-            yaml_free(event->data.scalar.anchor); 
-            yaml_free(event->data.scalar.tag); 
-            yaml_free(event->data.scalar.value); 
-            break; 
- 
-        case YAML_SEQUENCE_START_EVENT: 
-            yaml_free(event->data.sequence_start.anchor); 
-            yaml_free(event->data.sequence_start.tag); 
-            break; 
- 
-        case YAML_MAPPING_START_EVENT: 
-            yaml_free(event->data.mapping_start.anchor); 
-            yaml_free(event->data.mapping_start.tag); 
-            break; 
- 
-        default: 
-            break; 
-    } 
- 
-    memset(event, 0, sizeof(yaml_event_t)); 
-} 
- 
-/* 
- * Create a document object. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_initialize(yaml_document_t *document, 
-        yaml_version_directive_t *version_directive, 
-        yaml_tag_directive_t *tag_directives_start, 
-        yaml_tag_directive_t *tag_directives_end, 
-        int start_implicit, int end_implicit) 
-{ 
-    struct { 
-        yaml_error_type_t error; 
-    } context; 
-    struct { 
-        yaml_node_t *start; 
-        yaml_node_t *end; 
-        yaml_node_t *top; 
-    } nodes = { NULL, NULL, NULL }; 
-    yaml_version_directive_t *version_directive_copy = NULL; 
-    struct { 
-        yaml_tag_directive_t *start; 
-        yaml_tag_directive_t *end; 
-        yaml_tag_directive_t *top; 
-    } tag_directives_copy = { NULL, NULL, NULL }; 
-    yaml_tag_directive_t value = { NULL, NULL }; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(document);       /* Non-NULL document object is expected. */ 
-    assert((tag_directives_start && tag_directives_end) || 
-            (tag_directives_start == tag_directives_end)); 
-                            /* Valid tag directives are expected. */ 
- 
+        yaml_mapping_style_t style)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_char_t *anchor_copy = NULL;
+    yaml_char_t *tag_copy = NULL;
+
+    assert(event);      /* Non-NULL event object is expected. */
+
+    if (anchor) {
+        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;
+        anchor_copy = yaml_strdup(anchor);
+        if (!anchor_copy) goto error;
+    }
+
+    if (tag) {
+        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
+        tag_copy = yaml_strdup(tag);
+        if (!tag_copy) goto error;
+    }
+
+    MAPPING_START_EVENT_INIT(*event, anchor_copy, tag_copy,
+            implicit, style, mark, mark);
+
+    return 1;
+
+error:
+    yaml_free(anchor_copy);
+    yaml_free(tag_copy);
+
+    return 0;
+}
+
+/*
+ * Create MAPPING-END.
+ */
+
+YAML_DECLARE(int)
+yaml_mapping_end_event_initialize(yaml_event_t *event)
+{
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(event);      /* Non-NULL event object is expected. */
+
+    MAPPING_END_EVENT_INIT(*event, mark, mark);
+
+    return 1;
+}
+
+/*
+ * Destroy an event object.
+ */
+
+YAML_DECLARE(void)
+yaml_event_delete(yaml_event_t *event)
+{
+    yaml_tag_directive_t *tag_directive;
+
+    assert(event);  /* Non-NULL event object expected. */
+
+    switch (event->type)
+    {
+        case YAML_DOCUMENT_START_EVENT:
+            yaml_free(event->data.document_start.version_directive);
+            for (tag_directive = event->data.document_start.tag_directives.start;
+                    tag_directive != event->data.document_start.tag_directives.end;
+                    tag_directive++) {
+                yaml_free(tag_directive->handle);
+                yaml_free(tag_directive->prefix);
+            }
+            yaml_free(event->data.document_start.tag_directives.start);
+            break;
+
+        case YAML_ALIAS_EVENT:
+            yaml_free(event->data.alias.anchor);
+            break;
+
+        case YAML_SCALAR_EVENT:
+            yaml_free(event->data.scalar.anchor);
+            yaml_free(event->data.scalar.tag);
+            yaml_free(event->data.scalar.value);
+            break;
+
+        case YAML_SEQUENCE_START_EVENT:
+            yaml_free(event->data.sequence_start.anchor);
+            yaml_free(event->data.sequence_start.tag);
+            break;
+
+        case YAML_MAPPING_START_EVENT:
+            yaml_free(event->data.mapping_start.anchor);
+            yaml_free(event->data.mapping_start.tag);
+            break;
+
+        default:
+            break;
+    }
+
+    memset(event, 0, sizeof(yaml_event_t));
+}
+
+/*
+ * Create a document object.
+ */
+
+YAML_DECLARE(int)
+yaml_document_initialize(yaml_document_t *document,
+        yaml_version_directive_t *version_directive,
+        yaml_tag_directive_t *tag_directives_start,
+        yaml_tag_directive_t *tag_directives_end,
+        int start_implicit, int end_implicit)
+{
+    struct {
+        yaml_error_type_t error;
+    } context;
+    struct {
+        yaml_node_t *start;
+        yaml_node_t *end;
+        yaml_node_t *top;
+    } nodes = { NULL, NULL, NULL };
+    yaml_version_directive_t *version_directive_copy = NULL;
+    struct {
+        yaml_tag_directive_t *start;
+        yaml_tag_directive_t *end;
+        yaml_tag_directive_t *top;
+    } tag_directives_copy = { NULL, NULL, NULL };
+    yaml_tag_directive_t value = { NULL, NULL };
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(document);       /* Non-NULL document object is expected. */
+    assert((tag_directives_start && tag_directives_end) ||
+            (tag_directives_start == tag_directives_end));
+                            /* Valid tag directives are expected. */
+
     if (!STACK_INIT(&context, nodes, yaml_node_t*)) goto error;
- 
-    if (version_directive) { 
+
+    if (version_directive) {
         version_directive_copy = YAML_MALLOC_STATIC(yaml_version_directive_t);
-        if (!version_directive_copy) goto error; 
-        version_directive_copy->major = version_directive->major; 
-        version_directive_copy->minor = version_directive->minor; 
-    } 
- 
-    if (tag_directives_start != tag_directives_end) { 
-        yaml_tag_directive_t *tag_directive; 
+        if (!version_directive_copy) goto error;
+        version_directive_copy->major = version_directive->major;
+        version_directive_copy->minor = version_directive->minor;
+    }
+
+    if (tag_directives_start != tag_directives_end) {
+        yaml_tag_directive_t *tag_directive;
         if (!STACK_INIT(&context, tag_directives_copy, yaml_tag_directive_t*))
-            goto error; 
-        for (tag_directive = tag_directives_start; 
-                tag_directive != tag_directives_end; tag_directive ++) { 
-            assert(tag_directive->handle); 
-            assert(tag_directive->prefix); 
-            if (!yaml_check_utf8(tag_directive->handle, 
-                        strlen((char *)tag_directive->handle))) 
-                goto error; 
-            if (!yaml_check_utf8(tag_directive->prefix, 
-                        strlen((char *)tag_directive->prefix))) 
-                goto error; 
-            value.handle = yaml_strdup(tag_directive->handle); 
-            value.prefix = yaml_strdup(tag_directive->prefix); 
-            if (!value.handle || !value.prefix) goto error; 
-            if (!PUSH(&context, tag_directives_copy, value)) 
-                goto error; 
-            value.handle = NULL; 
-            value.prefix = NULL; 
-        } 
-    } 
- 
-    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy, 
-            tag_directives_copy.start, tag_directives_copy.top, 
-            start_implicit, end_implicit, mark, mark); 
- 
-    return 1; 
- 
-error: 
-    STACK_DEL(&context, nodes); 
-    yaml_free(version_directive_copy); 
-    while (!STACK_EMPTY(&context, tag_directives_copy)) { 
-        yaml_tag_directive_t value = POP(&context, tag_directives_copy); 
-        yaml_free(value.handle); 
-        yaml_free(value.prefix); 
-    } 
-    STACK_DEL(&context, tag_directives_copy); 
-    yaml_free(value.handle); 
-    yaml_free(value.prefix); 
- 
-    return 0; 
-} 
- 
-/* 
- * Destroy a document object. 
- */ 
- 
-YAML_DECLARE(void) 
-yaml_document_delete(yaml_document_t *document) 
-{ 
-    yaml_tag_directive_t *tag_directive; 
- 
-    assert(document);   /* Non-NULL document object is expected. */ 
- 
-    while (!STACK_EMPTY(&context, document->nodes)) { 
-        yaml_node_t node = POP(&context, document->nodes); 
-        yaml_free(node.tag); 
-        switch (node.type) { 
-            case YAML_SCALAR_NODE: 
-                yaml_free(node.data.scalar.value); 
-                break; 
-            case YAML_SEQUENCE_NODE: 
-                STACK_DEL(&context, node.data.sequence.items); 
-                break; 
-            case YAML_MAPPING_NODE: 
-                STACK_DEL(&context, node.data.mapping.pairs); 
-                break; 
-            default: 
-                assert(0);  /* Should not happen. */ 
-        } 
-    } 
-    STACK_DEL(&context, document->nodes); 
- 
-    yaml_free(document->version_directive); 
-    for (tag_directive = document->tag_directives.start; 
-            tag_directive != document->tag_directives.end; 
-            tag_directive++) { 
-        yaml_free(tag_directive->handle); 
-        yaml_free(tag_directive->prefix); 
-    } 
-    yaml_free(document->tag_directives.start); 
- 
-    memset(document, 0, sizeof(yaml_document_t)); 
-} 
- 
-/** 
- * Get a document node. 
- */ 
- 
-YAML_DECLARE(yaml_node_t *) 
-yaml_document_get_node(yaml_document_t *document, int index) 
-{ 
-    assert(document);   /* Non-NULL document object is expected. */ 
- 
-    if (index > 0 && document->nodes.start + index <= document->nodes.top) { 
-        return document->nodes.start + index - 1; 
-    } 
-    return NULL; 
-} 
- 
-/** 
- * Get the root object. 
- */ 
- 
-YAML_DECLARE(yaml_node_t *) 
-yaml_document_get_root_node(yaml_document_t *document) 
-{ 
-    assert(document);   /* Non-NULL document object is expected. */ 
- 
-    if (document->nodes.top != document->nodes.start) { 
-        return document->nodes.start; 
-    } 
-    return NULL; 
-} 
- 
-/* 
- * Add a scalar node to a document. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_add_scalar(yaml_document_t *document, 
+            goto error;
+        for (tag_directive = tag_directives_start;
+                tag_directive != tag_directives_end; tag_directive ++) {
+            assert(tag_directive->handle);
+            assert(tag_directive->prefix);
+            if (!yaml_check_utf8(tag_directive->handle,
+                        strlen((char *)tag_directive->handle)))
+                goto error;
+            if (!yaml_check_utf8(tag_directive->prefix,
+                        strlen((char *)tag_directive->prefix)))
+                goto error;
+            value.handle = yaml_strdup(tag_directive->handle);
+            value.prefix = yaml_strdup(tag_directive->prefix);
+            if (!value.handle || !value.prefix) goto error;
+            if (!PUSH(&context, tag_directives_copy, value))
+                goto error;
+            value.handle = NULL;
+            value.prefix = NULL;
+        }
+    }
+
+    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
+            tag_directives_copy.start, tag_directives_copy.top,
+            start_implicit, end_implicit, mark, mark);
+
+    return 1;
+
+error:
+    STACK_DEL(&context, nodes);
+    yaml_free(version_directive_copy);
+    while (!STACK_EMPTY(&context, tag_directives_copy)) {
+        yaml_tag_directive_t value = POP(&context, tag_directives_copy);
+        yaml_free(value.handle);
+        yaml_free(value.prefix);
+    }
+    STACK_DEL(&context, tag_directives_copy);
+    yaml_free(value.handle);
+    yaml_free(value.prefix);
+
+    return 0;
+}
+
+/*
+ * Destroy a document object.
+ */
+
+YAML_DECLARE(void)
+yaml_document_delete(yaml_document_t *document)
+{
+    yaml_tag_directive_t *tag_directive;
+
+    assert(document);   /* Non-NULL document object is expected. */
+
+    while (!STACK_EMPTY(&context, document->nodes)) {
+        yaml_node_t node = POP(&context, document->nodes);
+        yaml_free(node.tag);
+        switch (node.type) {
+            case YAML_SCALAR_NODE:
+                yaml_free(node.data.scalar.value);
+                break;
+            case YAML_SEQUENCE_NODE:
+                STACK_DEL(&context, node.data.sequence.items);
+                break;
+            case YAML_MAPPING_NODE:
+                STACK_DEL(&context, node.data.mapping.pairs);
+                break;
+            default:
+                assert(0);  /* Should not happen. */
+        }
+    }
+    STACK_DEL(&context, document->nodes);
+
+    yaml_free(document->version_directive);
+    for (tag_directive = document->tag_directives.start;
+            tag_directive != document->tag_directives.end;
+            tag_directive++) {
+        yaml_free(tag_directive->handle);
+        yaml_free(tag_directive->prefix);
+    }
+    yaml_free(document->tag_directives.start);
+
+    memset(document, 0, sizeof(yaml_document_t));
+}
+
+/**
+ * Get a document node.
+ */
+
+YAML_DECLARE(yaml_node_t *)
+yaml_document_get_node(yaml_document_t *document, int index)
+{
+    assert(document);   /* Non-NULL document object is expected. */
+
+    if (index > 0 && document->nodes.start + index <= document->nodes.top) {
+        return document->nodes.start + index - 1;
+    }
+    return NULL;
+}
+
+/**
+ * Get the root object.
+ */
+
+YAML_DECLARE(yaml_node_t *)
+yaml_document_get_root_node(yaml_document_t *document)
+{
+    assert(document);   /* Non-NULL document object is expected. */
+
+    if (document->nodes.top != document->nodes.start) {
+        return document->nodes.start;
+    }
+    return NULL;
+}
+
+/*
+ * Add a scalar node to a document.
+ */
+
+YAML_DECLARE(int)
+yaml_document_add_scalar(yaml_document_t *document,
         const yaml_char_t *tag, const yaml_char_t *value, int length,
-        yaml_scalar_style_t style) 
-{ 
-    struct { 
-        yaml_error_type_t error; 
-    } context; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_char_t *tag_copy = NULL; 
-    yaml_char_t *value_copy = NULL; 
-    yaml_node_t node; 
- 
-    assert(document);   /* Non-NULL document object is expected. */ 
-    assert(value);      /* Non-NULL value is expected. */ 
- 
-    if (!tag) { 
-        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG; 
-    } 
- 
-    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; 
-    tag_copy = yaml_strdup(tag); 
-    if (!tag_copy) goto error; 
- 
-    if (length < 0) { 
-        length = strlen((char *)value); 
-    } 
- 
-    if (!yaml_check_utf8(value, length)) goto error; 
+        yaml_scalar_style_t style)
+{
+    struct {
+        yaml_error_type_t error;
+    } context;
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_char_t *tag_copy = NULL;
+    yaml_char_t *value_copy = NULL;
+    yaml_node_t node;
+
+    assert(document);   /* Non-NULL document object is expected. */
+    assert(value);      /* Non-NULL value is expected. */
+
+    if (!tag) {
+        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG;
+    }
+
+    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
+    tag_copy = yaml_strdup(tag);
+    if (!tag_copy) goto error;
+
+    if (length < 0) {
+        length = strlen((char *)value);
+    }
+
+    if (!yaml_check_utf8(value, length)) goto error;
     value_copy = YAML_MALLOC(length+1);
-    if (!value_copy) goto error; 
-    memcpy(value_copy, value, length); 
-    value_copy[length] = '\0'; 
- 
-    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark); 
-    if (!PUSH(&context, document->nodes, node)) goto error; 
- 
-    return document->nodes.top - document->nodes.start; 
- 
-error: 
-    yaml_free(tag_copy); 
-    yaml_free(value_copy); 
- 
-    return 0; 
-} 
- 
-/* 
- * Add a sequence node to a document. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_add_sequence(yaml_document_t *document, 
+    if (!value_copy) goto error;
+    memcpy(value_copy, value, length);
+    value_copy[length] = '\0';
+
+    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark);
+    if (!PUSH(&context, document->nodes, node)) goto error;
+
+    return document->nodes.top - document->nodes.start;
+
+error:
+    yaml_free(tag_copy);
+    yaml_free(value_copy);
+
+    return 0;
+}
+
+/*
+ * Add a sequence node to a document.
+ */
+
+YAML_DECLARE(int)
+yaml_document_add_sequence(yaml_document_t *document,
         const yaml_char_t *tag, yaml_sequence_style_t style)
-{ 
-    struct { 
-        yaml_error_type_t error; 
-    } context; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_char_t *tag_copy = NULL; 
-    struct { 
-        yaml_node_item_t *start; 
-        yaml_node_item_t *end; 
-        yaml_node_item_t *top; 
-    } items = { NULL, NULL, NULL }; 
-    yaml_node_t node; 
- 
-    assert(document);   /* Non-NULL document object is expected. */ 
- 
-    if (!tag) { 
-        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG; 
-    } 
- 
-    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; 
-    tag_copy = yaml_strdup(tag); 
-    if (!tag_copy) goto error; 
- 
+{
+    struct {
+        yaml_error_type_t error;
+    } context;
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_char_t *tag_copy = NULL;
+    struct {
+        yaml_node_item_t *start;
+        yaml_node_item_t *end;
+        yaml_node_item_t *top;
+    } items = { NULL, NULL, NULL };
+    yaml_node_t node;
+
+    assert(document);   /* Non-NULL document object is expected. */
+
+    if (!tag) {
+        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG;
+    }
+
+    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
+    tag_copy = yaml_strdup(tag);
+    if (!tag_copy) goto error;
+
     if (!STACK_INIT(&context, items, yaml_node_item_t*)) goto error;
- 
-    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end, 
-            style, mark, mark); 
-    if (!PUSH(&context, document->nodes, node)) goto error; 
- 
-    return document->nodes.top - document->nodes.start; 
- 
-error: 
-    STACK_DEL(&context, items); 
-    yaml_free(tag_copy); 
- 
-    return 0; 
-} 
- 
-/* 
- * Add a mapping node to a document. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_add_mapping(yaml_document_t *document, 
+
+    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
+            style, mark, mark);
+    if (!PUSH(&context, document->nodes, node)) goto error;
+
+    return document->nodes.top - document->nodes.start;
+
+error:
+    STACK_DEL(&context, items);
+    yaml_free(tag_copy);
+
+    return 0;
+}
+
+/*
+ * Add a mapping node to a document.
+ */
+
+YAML_DECLARE(int)
+yaml_document_add_mapping(yaml_document_t *document,
         const yaml_char_t *tag, yaml_mapping_style_t style)
-{ 
-    struct { 
-        yaml_error_type_t error; 
-    } context; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
-    yaml_char_t *tag_copy = NULL; 
-    struct { 
-        yaml_node_pair_t *start; 
-        yaml_node_pair_t *end; 
-        yaml_node_pair_t *top; 
-    } pairs = { NULL, NULL, NULL }; 
-    yaml_node_t node; 
- 
-    assert(document);   /* Non-NULL document object is expected. */ 
- 
-    if (!tag) { 
-        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG; 
-    } 
- 
-    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; 
-    tag_copy = yaml_strdup(tag); 
-    if (!tag_copy) goto error; 
- 
+{
+    struct {
+        yaml_error_type_t error;
+    } context;
+    yaml_mark_t mark = { 0, 0, 0 };
+    yaml_char_t *tag_copy = NULL;
+    struct {
+        yaml_node_pair_t *start;
+        yaml_node_pair_t *end;
+        yaml_node_pair_t *top;
+    } pairs = { NULL, NULL, NULL };
+    yaml_node_t node;
+
+    assert(document);   /* Non-NULL document object is expected. */
+
+    if (!tag) {
+        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG;
+    }
+
+    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
+    tag_copy = yaml_strdup(tag);
+    if (!tag_copy) goto error;
+
     if (!STACK_INIT(&context, pairs, yaml_node_pair_t*)) goto error;
- 
-    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end, 
-            style, mark, mark); 
-    if (!PUSH(&context, document->nodes, node)) goto error; 
- 
-    return document->nodes.top - document->nodes.start; 
- 
-error: 
-    STACK_DEL(&context, pairs); 
-    yaml_free(tag_copy); 
- 
-    return 0; 
-} 
- 
-/* 
- * Append an item to a sequence node. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_append_sequence_item(yaml_document_t *document, 
-        int sequence, int item) 
-{ 
-    struct { 
-        yaml_error_type_t error; 
-    } context; 
- 
-    assert(document);       /* Non-NULL document is required. */ 
-    assert(sequence > 0 
-            && document->nodes.start + sequence <= document->nodes.top); 
-                            /* Valid sequence id is required. */ 
-    assert(document->nodes.start[sequence-1].type == YAML_SEQUENCE_NODE); 
-                            /* A sequence node is required. */ 
-    assert(item > 0 && document->nodes.start + item <= document->nodes.top); 
-                            /* Valid item id is required. */ 
- 
-    if (!PUSH(&context, 
-                document->nodes.start[sequence-1].data.sequence.items, item)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Append a pair of a key and a value to a mapping node. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_document_append_mapping_pair(yaml_document_t *document, 
-        int mapping, int key, int value) 
-{ 
-    struct { 
-        yaml_error_type_t error; 
-    } context; 
- 
-    yaml_node_pair_t pair; 
- 
-    assert(document);       /* Non-NULL document is required. */ 
-    assert(mapping > 0 
-            && document->nodes.start + mapping <= document->nodes.top); 
-                            /* Valid mapping id is required. */ 
-    assert(document->nodes.start[mapping-1].type == YAML_MAPPING_NODE); 
-                            /* A mapping node is required. */ 
-    assert(key > 0 && document->nodes.start + key <= document->nodes.top); 
-                            /* Valid key id is required. */ 
-    assert(value > 0 && document->nodes.start + value <= document->nodes.top); 
-                            /* Valid value id is required. */ 
- 
-    pair.key = key; 
-    pair.value = value; 
- 
-    if (!PUSH(&context, 
-                document->nodes.start[mapping-1].data.mapping.pairs, pair)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
- 
+
+    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
+            style, mark, mark);
+    if (!PUSH(&context, document->nodes, node)) goto error;
+
+    return document->nodes.top - document->nodes.start;
+
+error:
+    STACK_DEL(&context, pairs);
+    yaml_free(tag_copy);
+
+    return 0;
+}
+
+/*
+ * Append an item to a sequence node.
+ */
+
+YAML_DECLARE(int)
+yaml_document_append_sequence_item(yaml_document_t *document,
+        int sequence, int item)
+{
+    struct {
+        yaml_error_type_t error;
+    } context;
+
+    assert(document);       /* Non-NULL document is required. */
+    assert(sequence > 0
+            && document->nodes.start + sequence <= document->nodes.top);
+                            /* Valid sequence id is required. */
+    assert(document->nodes.start[sequence-1].type == YAML_SEQUENCE_NODE);
+                            /* A sequence node is required. */
+    assert(item > 0 && document->nodes.start + item <= document->nodes.top);
+                            /* Valid item id is required. */
+
+    if (!PUSH(&context,
+                document->nodes.start[sequence-1].data.sequence.items, item))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Append a pair of a key and a value to a mapping node.
+ */
+
+YAML_DECLARE(int)
+yaml_document_append_mapping_pair(yaml_document_t *document,
+        int mapping, int key, int value)
+{
+    struct {
+        yaml_error_type_t error;
+    } context;
+
+    yaml_node_pair_t pair;
+
+    assert(document);       /* Non-NULL document is required. */
+    assert(mapping > 0
+            && document->nodes.start + mapping <= document->nodes.top);
+                            /* Valid mapping id is required. */
+    assert(document->nodes.start[mapping-1].type == YAML_MAPPING_NODE);
+                            /* A mapping node is required. */
+    assert(key > 0 && document->nodes.start + key <= document->nodes.top);
+                            /* Valid key id is required. */
+    assert(value > 0 && document->nodes.start + value <= document->nodes.top);
+                            /* Valid value id is required. */
+
+    pair.key = key;
+    pair.value = value;
+
+    if (!PUSH(&context,
+                document->nodes.start[mapping-1].data.mapping.pairs, pair))
+        return 0;
+
+    return 1;
+}
+
+
diff --git a/contrib/libs/yaml/src/config.h b/contrib/libs/yaml/src/config.h
index 4ce4fd0a20..22a2296e5e 100644
--- a/contrib/libs/yaml/src/config.h
+++ b/contrib/libs/yaml/src/config.h
@@ -64,7 +64,7 @@
 #define VERSION "0.2.5"
 
 /* Define the major version number. */
-#define YAML_VERSION_MAJOR 0 
+#define YAML_VERSION_MAJOR 0
 
 /* Define the minor version number. */
 #define YAML_VERSION_MINOR 2
diff --git a/contrib/libs/yaml/src/dumper.c b/contrib/libs/yaml/src/dumper.c
index 292d2cff12..1fe940b674 100644
--- a/contrib/libs/yaml/src/dumper.c
+++ b/contrib/libs/yaml/src/dumper.c
@@ -1,394 +1,394 @@
- 
-#include "yaml_private.h" 
- 
-/* 
- * API functions. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_open(yaml_emitter_t *emitter); 
- 
-YAML_DECLARE(int) 
-yaml_emitter_close(yaml_emitter_t *emitter); 
- 
-YAML_DECLARE(int) 
-yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document); 
- 
-/* 
- * Clean up functions. 
- */ 
- 
-static void 
-yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter); 
- 
-/* 
- * Anchor functions. 
- */ 
- 
-static void 
-yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index); 
- 
-static yaml_char_t * 
-yaml_emitter_generate_anchor(yaml_emitter_t *emitter, int anchor_id); 
- 
- 
-/* 
- * Serialize functions. 
- */ 
- 
-static int 
-yaml_emitter_dump_node(yaml_emitter_t *emitter, int index); 
- 
-static int 
-yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor); 
- 
-static int 
-yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node, 
-        yaml_char_t *anchor); 
- 
-static int 
-yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node, 
-        yaml_char_t *anchor); 
- 
-static int 
-yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node, 
-        yaml_char_t *anchor); 
- 
-/* 
- * Issue a STREAM-START event. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_open(yaml_emitter_t *emitter) 
-{ 
-    yaml_event_t event; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(emitter);            /* Non-NULL emitter object is required. */ 
-    assert(!emitter->opened);   /* Emitter should not be opened yet. */ 
- 
-    STREAM_START_EVENT_INIT(event, YAML_ANY_ENCODING, mark, mark); 
- 
-    if (!yaml_emitter_emit(emitter, &event)) { 
-        return 0; 
-    } 
- 
-    emitter->opened = 1; 
- 
-    return 1; 
-} 
- 
-/* 
- * Issue a STREAM-END event. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_close(yaml_emitter_t *emitter) 
-{ 
-    yaml_event_t event; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(emitter);            /* Non-NULL emitter object is required. */ 
-    assert(emitter->opened);    /* Emitter should be opened. */ 
- 
-    if (emitter->closed) return 1; 
- 
-    STREAM_END_EVENT_INIT(event, mark, mark); 
- 
-    if (!yaml_emitter_emit(emitter, &event)) { 
-        return 0; 
-    } 
- 
-    emitter->closed = 1; 
- 
-    return 1; 
-} 
- 
-/* 
- * Dump a YAML document. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document) 
-{ 
-    yaml_event_t event; 
-    yaml_mark_t mark = { 0, 0, 0 }; 
- 
-    assert(emitter);            /* Non-NULL emitter object is required. */ 
-    assert(document);           /* Non-NULL emitter object is expected. */ 
- 
-    emitter->document = document; 
- 
-    if (!emitter->opened) { 
-        if (!yaml_emitter_open(emitter)) goto error; 
-    } 
- 
-    if (STACK_EMPTY(emitter, document->nodes)) { 
-        if (!yaml_emitter_close(emitter)) goto error; 
-        yaml_emitter_delete_document_and_anchors(emitter); 
-        return 1; 
-    } 
- 
-    assert(emitter->opened);    /* Emitter should be opened. */ 
- 
+
+#include "yaml_private.h"
+
+/*
+ * API functions.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_open(yaml_emitter_t *emitter);
+
+YAML_DECLARE(int)
+yaml_emitter_close(yaml_emitter_t *emitter);
+
+YAML_DECLARE(int)
+yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document);
+
+/*
+ * Clean up functions.
+ */
+
+static void
+yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter);
+
+/*
+ * Anchor functions.
+ */
+
+static void
+yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index);
+
+static yaml_char_t *
+yaml_emitter_generate_anchor(yaml_emitter_t *emitter, int anchor_id);
+
+
+/*
+ * Serialize functions.
+ */
+
+static int
+yaml_emitter_dump_node(yaml_emitter_t *emitter, int index);
+
+static int
+yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor);
+
+static int
+yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node,
+        yaml_char_t *anchor);
+
+static int
+yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node,
+        yaml_char_t *anchor);
+
+static int
+yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node,
+        yaml_char_t *anchor);
+
+/*
+ * Issue a STREAM-START event.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_open(yaml_emitter_t *emitter)
+{
+    yaml_event_t event;
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(emitter);            /* Non-NULL emitter object is required. */
+    assert(!emitter->opened);   /* Emitter should not be opened yet. */
+
+    STREAM_START_EVENT_INIT(event, YAML_ANY_ENCODING, mark, mark);
+
+    if (!yaml_emitter_emit(emitter, &event)) {
+        return 0;
+    }
+
+    emitter->opened = 1;
+
+    return 1;
+}
+
+/*
+ * Issue a STREAM-END event.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_close(yaml_emitter_t *emitter)
+{
+    yaml_event_t event;
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(emitter);            /* Non-NULL emitter object is required. */
+    assert(emitter->opened);    /* Emitter should be opened. */
+
+    if (emitter->closed) return 1;
+
+    STREAM_END_EVENT_INIT(event, mark, mark);
+
+    if (!yaml_emitter_emit(emitter, &event)) {
+        return 0;
+    }
+
+    emitter->closed = 1;
+
+    return 1;
+}
+
+/*
+ * Dump a YAML document.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document)
+{
+    yaml_event_t event;
+    yaml_mark_t mark = { 0, 0, 0 };
+
+    assert(emitter);            /* Non-NULL emitter object is required. */
+    assert(document);           /* Non-NULL emitter object is expected. */
+
+    emitter->document = document;
+
+    if (!emitter->opened) {
+        if (!yaml_emitter_open(emitter)) goto error;
+    }
+
+    if (STACK_EMPTY(emitter, document->nodes)) {
+        if (!yaml_emitter_close(emitter)) goto error;
+        yaml_emitter_delete_document_and_anchors(emitter);
+        return 1;
+    }
+
+    assert(emitter->opened);    /* Emitter should be opened. */
+
     emitter->anchors = (yaml_anchors_t*)yaml_malloc(sizeof(*(emitter->anchors))
-            * (document->nodes.top - document->nodes.start)); 
-    if (!emitter->anchors) goto error; 
-    memset(emitter->anchors, 0, sizeof(*(emitter->anchors)) 
-            * (document->nodes.top - document->nodes.start)); 
- 
-    DOCUMENT_START_EVENT_INIT(event, document->version_directive, 
-            document->tag_directives.start, document->tag_directives.end, 
-            document->start_implicit, mark, mark); 
-    if (!yaml_emitter_emit(emitter, &event)) goto error; 
- 
-    yaml_emitter_anchor_node(emitter, 1); 
-    if (!yaml_emitter_dump_node(emitter, 1)) goto error; 
- 
-    DOCUMENT_END_EVENT_INIT(event, document->end_implicit, mark, mark); 
-    if (!yaml_emitter_emit(emitter, &event)) goto error; 
- 
-    yaml_emitter_delete_document_and_anchors(emitter); 
- 
-    return 1; 
- 
-error: 
- 
-    yaml_emitter_delete_document_and_anchors(emitter); 
- 
-    return 0; 
-} 
- 
-/* 
- * Clean up the emitter object after a document is dumped. 
- */ 
- 
-static void 
-yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter) 
-{ 
-    int index; 
- 
-    if (!emitter->anchors) { 
-        yaml_document_delete(emitter->document); 
-        emitter->document = NULL; 
-        return; 
-    } 
- 
-    for (index = 0; emitter->document->nodes.start + index 
-            < emitter->document->nodes.top; index ++) { 
-        yaml_node_t node = emitter->document->nodes.start[index]; 
-        if (!emitter->anchors[index].serialized) { 
-            yaml_free(node.tag); 
-            if (node.type == YAML_SCALAR_NODE) { 
-                yaml_free(node.data.scalar.value); 
-            } 
-        } 
-        if (node.type == YAML_SEQUENCE_NODE) { 
-            STACK_DEL(emitter, node.data.sequence.items); 
-        } 
-        if (node.type == YAML_MAPPING_NODE) { 
-            STACK_DEL(emitter, node.data.mapping.pairs); 
-        } 
-    } 
- 
-    STACK_DEL(emitter, emitter->document->nodes); 
-    yaml_free(emitter->anchors); 
- 
-    emitter->anchors = NULL; 
-    emitter->last_anchor_id = 0; 
-    emitter->document = NULL; 
-} 
- 
-/* 
- * Check the references of a node and assign the anchor id if needed. 
- */ 
- 
-static void 
-yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index) 
-{ 
-    yaml_node_t *node = emitter->document->nodes.start + index - 1; 
-    yaml_node_item_t *item; 
-    yaml_node_pair_t *pair; 
- 
-    emitter->anchors[index-1].references ++; 
- 
-    if (emitter->anchors[index-1].references == 1) { 
-        switch (node->type) { 
-            case YAML_SEQUENCE_NODE: 
-                for (item = node->data.sequence.items.start; 
-                        item < node->data.sequence.items.top; item ++) { 
-                    yaml_emitter_anchor_node(emitter, *item); 
-                } 
-                break; 
-            case YAML_MAPPING_NODE: 
-                for (pair = node->data.mapping.pairs.start; 
-                        pair < node->data.mapping.pairs.top; pair ++) { 
-                    yaml_emitter_anchor_node(emitter, pair->key); 
-                    yaml_emitter_anchor_node(emitter, pair->value); 
-                } 
-                break; 
-            default: 
-                break; 
-        } 
-    } 
- 
-    else if (emitter->anchors[index-1].references == 2) { 
-        emitter->anchors[index-1].anchor = (++ emitter->last_anchor_id); 
-    } 
-} 
- 
-/* 
- * Generate a textual representation for an anchor. 
- */ 
- 
-#define ANCHOR_TEMPLATE         "id%03d" 
-#define ANCHOR_TEMPLATE_LENGTH  16 
- 
-static yaml_char_t * 
+            * (document->nodes.top - document->nodes.start));
+    if (!emitter->anchors) goto error;
+    memset(emitter->anchors, 0, sizeof(*(emitter->anchors))
+            * (document->nodes.top - document->nodes.start));
+
+    DOCUMENT_START_EVENT_INIT(event, document->version_directive,
+            document->tag_directives.start, document->tag_directives.end,
+            document->start_implicit, mark, mark);
+    if (!yaml_emitter_emit(emitter, &event)) goto error;
+
+    yaml_emitter_anchor_node(emitter, 1);
+    if (!yaml_emitter_dump_node(emitter, 1)) goto error;
+
+    DOCUMENT_END_EVENT_INIT(event, document->end_implicit, mark, mark);
+    if (!yaml_emitter_emit(emitter, &event)) goto error;
+
+    yaml_emitter_delete_document_and_anchors(emitter);
+
+    return 1;
+
+error:
+
+    yaml_emitter_delete_document_and_anchors(emitter);
+
+    return 0;
+}
+
+/*
+ * Clean up the emitter object after a document is dumped.
+ */
+
+static void
+yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter)
+{
+    int index;
+
+    if (!emitter->anchors) {
+        yaml_document_delete(emitter->document);
+        emitter->document = NULL;
+        return;
+    }
+
+    for (index = 0; emitter->document->nodes.start + index
+            < emitter->document->nodes.top; index ++) {
+        yaml_node_t node = emitter->document->nodes.start[index];
+        if (!emitter->anchors[index].serialized) {
+            yaml_free(node.tag);
+            if (node.type == YAML_SCALAR_NODE) {
+                yaml_free(node.data.scalar.value);
+            }
+        }
+        if (node.type == YAML_SEQUENCE_NODE) {
+            STACK_DEL(emitter, node.data.sequence.items);
+        }
+        if (node.type == YAML_MAPPING_NODE) {
+            STACK_DEL(emitter, node.data.mapping.pairs);
+        }
+    }
+
+    STACK_DEL(emitter, emitter->document->nodes);
+    yaml_free(emitter->anchors);
+
+    emitter->anchors = NULL;
+    emitter->last_anchor_id = 0;
+    emitter->document = NULL;
+}
+
+/*
+ * Check the references of a node and assign the anchor id if needed.
+ */
+
+static void
+yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index)
+{
+    yaml_node_t *node = emitter->document->nodes.start + index - 1;
+    yaml_node_item_t *item;
+    yaml_node_pair_t *pair;
+
+    emitter->anchors[index-1].references ++;
+
+    if (emitter->anchors[index-1].references == 1) {
+        switch (node->type) {
+            case YAML_SEQUENCE_NODE:
+                for (item = node->data.sequence.items.start;
+                        item < node->data.sequence.items.top; item ++) {
+                    yaml_emitter_anchor_node(emitter, *item);
+                }
+                break;
+            case YAML_MAPPING_NODE:
+                for (pair = node->data.mapping.pairs.start;
+                        pair < node->data.mapping.pairs.top; pair ++) {
+                    yaml_emitter_anchor_node(emitter, pair->key);
+                    yaml_emitter_anchor_node(emitter, pair->value);
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+    else if (emitter->anchors[index-1].references == 2) {
+        emitter->anchors[index-1].anchor = (++ emitter->last_anchor_id);
+    }
+}
+
+/*
+ * Generate a textual representation for an anchor.
+ */
+
+#define ANCHOR_TEMPLATE         "id%03d"
+#define ANCHOR_TEMPLATE_LENGTH  16
+
+static yaml_char_t *
 yaml_emitter_generate_anchor(SHIM(yaml_emitter_t *emitter), int anchor_id)
-{ 
+{
     yaml_char_t *anchor = YAML_MALLOC(ANCHOR_TEMPLATE_LENGTH);
- 
-    if (!anchor) return NULL; 
- 
-    sprintf((char *)anchor, ANCHOR_TEMPLATE, anchor_id); 
- 
-    return anchor; 
-} 
- 
-/* 
- * Serialize a node. 
- */ 
- 
-static int 
-yaml_emitter_dump_node(yaml_emitter_t *emitter, int index) 
-{ 
-    yaml_node_t *node = emitter->document->nodes.start + index - 1; 
-    int anchor_id = emitter->anchors[index-1].anchor; 
-    yaml_char_t *anchor = NULL; 
- 
-    if (anchor_id) { 
-        anchor = yaml_emitter_generate_anchor(emitter, anchor_id); 
-        if (!anchor) return 0; 
-    } 
- 
-    if (emitter->anchors[index-1].serialized) { 
-        return yaml_emitter_dump_alias(emitter, anchor); 
-    } 
- 
-    emitter->anchors[index-1].serialized = 1; 
- 
-    switch (node->type) { 
-        case YAML_SCALAR_NODE: 
-            return yaml_emitter_dump_scalar(emitter, node, anchor); 
-        case YAML_SEQUENCE_NODE: 
-            return yaml_emitter_dump_sequence(emitter, node, anchor); 
-        case YAML_MAPPING_NODE: 
-            return yaml_emitter_dump_mapping(emitter, node, anchor); 
-        default: 
-            assert(0);      /* Could not happen. */ 
-            break; 
-    } 
- 
-    return 0;       /* Could not happen. */ 
-} 
- 
-/* 
- * Serialize an alias. 
- */ 
- 
-static int 
-yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor) 
-{ 
-    yaml_event_t event; 
-    yaml_mark_t mark  = { 0, 0, 0 }; 
- 
-    ALIAS_EVENT_INIT(event, anchor, mark, mark); 
- 
-    return yaml_emitter_emit(emitter, &event); 
-} 
- 
-/* 
- * Serialize a scalar. 
- */ 
- 
-static int 
-yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node, 
-        yaml_char_t *anchor) 
-{ 
-    yaml_event_t event; 
-    yaml_mark_t mark  = { 0, 0, 0 }; 
- 
-    int plain_implicit = (strcmp((char *)node->tag, 
-                YAML_DEFAULT_SCALAR_TAG) == 0); 
-    int quoted_implicit = (strcmp((char *)node->tag, 
-                YAML_DEFAULT_SCALAR_TAG) == 0); 
- 
-    SCALAR_EVENT_INIT(event, anchor, node->tag, node->data.scalar.value, 
-            node->data.scalar.length, plain_implicit, quoted_implicit, 
-            node->data.scalar.style, mark, mark); 
- 
-    return yaml_emitter_emit(emitter, &event); 
-} 
- 
-/* 
- * Serialize a sequence. 
- */ 
- 
-static int 
-yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node, 
-        yaml_char_t *anchor) 
-{ 
-    yaml_event_t event; 
-    yaml_mark_t mark  = { 0, 0, 0 }; 
- 
-    int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_SEQUENCE_TAG) == 0); 
- 
-    yaml_node_item_t *item; 
- 
-    SEQUENCE_START_EVENT_INIT(event, anchor, node->tag, implicit, 
-            node->data.sequence.style, mark, mark); 
-    if (!yaml_emitter_emit(emitter, &event)) return 0; 
- 
-    for (item = node->data.sequence.items.start; 
-            item < node->data.sequence.items.top; item ++) { 
-        if (!yaml_emitter_dump_node(emitter, *item)) return 0; 
-    } 
- 
-    SEQUENCE_END_EVENT_INIT(event, mark, mark); 
-    if (!yaml_emitter_emit(emitter, &event)) return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Serialize a mapping. 
- */ 
- 
-static int 
-yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node, 
-        yaml_char_t *anchor) 
-{ 
-    yaml_event_t event; 
-    yaml_mark_t mark  = { 0, 0, 0 }; 
- 
-    int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_MAPPING_TAG) == 0); 
- 
-    yaml_node_pair_t *pair; 
- 
-    MAPPING_START_EVENT_INIT(event, anchor, node->tag, implicit, 
-            node->data.mapping.style, mark, mark); 
-    if (!yaml_emitter_emit(emitter, &event)) return 0; 
- 
-    for (pair = node->data.mapping.pairs.start; 
-            pair < node->data.mapping.pairs.top; pair ++) { 
-        if (!yaml_emitter_dump_node(emitter, pair->key)) return 0; 
-        if (!yaml_emitter_dump_node(emitter, pair->value)) return 0; 
-    } 
- 
-    MAPPING_END_EVENT_INIT(event, mark, mark); 
-    if (!yaml_emitter_emit(emitter, &event)) return 0; 
- 
-    return 1; 
-} 
- 
+
+    if (!anchor) return NULL;
+
+    sprintf((char *)anchor, ANCHOR_TEMPLATE, anchor_id);
+
+    return anchor;
+}
+
+/*
+ * Serialize a node.
+ */
+
+static int
+yaml_emitter_dump_node(yaml_emitter_t *emitter, int index)
+{
+    yaml_node_t *node = emitter->document->nodes.start + index - 1;
+    int anchor_id = emitter->anchors[index-1].anchor;
+    yaml_char_t *anchor = NULL;
+
+    if (anchor_id) {
+        anchor = yaml_emitter_generate_anchor(emitter, anchor_id);
+        if (!anchor) return 0;
+    }
+
+    if (emitter->anchors[index-1].serialized) {
+        return yaml_emitter_dump_alias(emitter, anchor);
+    }
+
+    emitter->anchors[index-1].serialized = 1;
+
+    switch (node->type) {
+        case YAML_SCALAR_NODE:
+            return yaml_emitter_dump_scalar(emitter, node, anchor);
+        case YAML_SEQUENCE_NODE:
+            return yaml_emitter_dump_sequence(emitter, node, anchor);
+        case YAML_MAPPING_NODE:
+            return yaml_emitter_dump_mapping(emitter, node, anchor);
+        default:
+            assert(0);      /* Could not happen. */
+            break;
+    }
+
+    return 0;       /* Could not happen. */
+}
+
+/*
+ * Serialize an alias.
+ */
+
+static int
+yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor)
+{
+    yaml_event_t event;
+    yaml_mark_t mark  = { 0, 0, 0 };
+
+    ALIAS_EVENT_INIT(event, anchor, mark, mark);
+
+    return yaml_emitter_emit(emitter, &event);
+}
+
+/*
+ * Serialize a scalar.
+ */
+
+static int
+yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node,
+        yaml_char_t *anchor)
+{
+    yaml_event_t event;
+    yaml_mark_t mark  = { 0, 0, 0 };
+
+    int plain_implicit = (strcmp((char *)node->tag,
+                YAML_DEFAULT_SCALAR_TAG) == 0);
+    int quoted_implicit = (strcmp((char *)node->tag,
+                YAML_DEFAULT_SCALAR_TAG) == 0);
+
+    SCALAR_EVENT_INIT(event, anchor, node->tag, node->data.scalar.value,
+            node->data.scalar.length, plain_implicit, quoted_implicit,
+            node->data.scalar.style, mark, mark);
+
+    return yaml_emitter_emit(emitter, &event);
+}
+
+/*
+ * Serialize a sequence.
+ */
+
+static int
+yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node,
+        yaml_char_t *anchor)
+{
+    yaml_event_t event;
+    yaml_mark_t mark  = { 0, 0, 0 };
+
+    int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_SEQUENCE_TAG) == 0);
+
+    yaml_node_item_t *item;
+
+    SEQUENCE_START_EVENT_INIT(event, anchor, node->tag, implicit,
+            node->data.sequence.style, mark, mark);
+    if (!yaml_emitter_emit(emitter, &event)) return 0;
+
+    for (item = node->data.sequence.items.start;
+            item < node->data.sequence.items.top; item ++) {
+        if (!yaml_emitter_dump_node(emitter, *item)) return 0;
+    }
+
+    SEQUENCE_END_EVENT_INIT(event, mark, mark);
+    if (!yaml_emitter_emit(emitter, &event)) return 0;
+
+    return 1;
+}
+
+/*
+ * Serialize a mapping.
+ */
+
+static int
+yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node,
+        yaml_char_t *anchor)
+{
+    yaml_event_t event;
+    yaml_mark_t mark  = { 0, 0, 0 };
+
+    int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_MAPPING_TAG) == 0);
+
+    yaml_node_pair_t *pair;
+
+    MAPPING_START_EVENT_INIT(event, anchor, node->tag, implicit,
+            node->data.mapping.style, mark, mark);
+    if (!yaml_emitter_emit(emitter, &event)) return 0;
+
+    for (pair = node->data.mapping.pairs.start;
+            pair < node->data.mapping.pairs.top; pair ++) {
+        if (!yaml_emitter_dump_node(emitter, pair->key)) return 0;
+        if (!yaml_emitter_dump_node(emitter, pair->value)) return 0;
+    }
+
+    MAPPING_END_EVENT_INIT(event, mark, mark);
+    if (!yaml_emitter_emit(emitter, &event)) return 0;
+
+    return 1;
+}
+
diff --git a/contrib/libs/yaml/src/emitter.c b/contrib/libs/yaml/src/emitter.c
index 283a2be745..609b28a4c6 100644
--- a/contrib/libs/yaml/src/emitter.c
+++ b/contrib/libs/yaml/src/emitter.c
@@ -1,609 +1,609 @@
- 
-#include "yaml_private.h" 
- 
-/* 
- * Flush the buffer if needed. 
- */ 
- 
-#define FLUSH(emitter)                                                          \ 
-    ((emitter->buffer.pointer+5 < emitter->buffer.end)                          \ 
-     || yaml_emitter_flush(emitter)) 
- 
-/* 
- * Put a character to the output buffer. 
- */ 
- 
-#define PUT(emitter,value)                                                      \ 
-    (FLUSH(emitter)                                                             \ 
-     && (*(emitter->buffer.pointer++) = (yaml_char_t)(value),                   \ 
+
+#include "yaml_private.h"
+
+/*
+ * Flush the buffer if needed.
+ */
+
+#define FLUSH(emitter)                                                          \
+    ((emitter->buffer.pointer+5 < emitter->buffer.end)                          \
+     || yaml_emitter_flush(emitter))
+
+/*
+ * Put a character to the output buffer.
+ */
+
+#define PUT(emitter,value)                                                      \
+    (FLUSH(emitter)                                                             \
+     && (*(emitter->buffer.pointer++) = (yaml_char_t)(value),                   \
          emitter->column++,                                             	\
-         1)) 
- 
-/* 
- * Put a line break to the output buffer. 
- */ 
- 
-#define PUT_BREAK(emitter)                                                      \ 
-    (FLUSH(emitter)                                                             \ 
-     && ((emitter->line_break == YAML_CR_BREAK ?                                \ 
-             (*(emitter->buffer.pointer++) = (yaml_char_t) '\r') :              \ 
-          emitter->line_break == YAML_LN_BREAK ?                                \ 
-             (*(emitter->buffer.pointer++) = (yaml_char_t) '\n') :              \ 
-          emitter->line_break == YAML_CRLN_BREAK ?                              \ 
-             (*(emitter->buffer.pointer++) = (yaml_char_t) '\r',                \ 
-              *(emitter->buffer.pointer++) = (yaml_char_t) '\n') : 0),          \ 
-         emitter->column = 0,                                                   \ 
-         emitter->line ++,                                                      \ 
-         1)) 
- 
-/* 
- * Copy a character from a string into buffer. 
- */ 
- 
-#define WRITE(emitter,string)                                                   \ 
-    (FLUSH(emitter)                                                             \ 
-     && (COPY(emitter->buffer,string),                                          \ 
-         emitter->column ++,                                                    \ 
-         1)) 
- 
-/* 
- * Copy a line break character from a string into buffer. 
- */ 
- 
-#define WRITE_BREAK(emitter,string)                                             \ 
-    (FLUSH(emitter)                                                             \ 
-     && (CHECK(string,'\n') ?                                                   \ 
-         (PUT_BREAK(emitter),                                                   \ 
-          string.pointer ++,                                                    \ 
-          1) :                                                                  \ 
-         (COPY(emitter->buffer,string),                                         \ 
-          emitter->column = 0,                                                  \ 
-          emitter->line ++,                                                     \ 
-          1))) 
- 
-/* 
- * API functions. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-/* 
- * Utility functions. 
- */ 
- 
-static int 
-yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem); 
- 
-static int 
-yaml_emitter_need_more_events(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, 
-        yaml_tag_directive_t value, int allow_duplicates); 
- 
-static int 
-yaml_emitter_increase_indent(yaml_emitter_t *emitter, 
-        int flow, int indentless); 
- 
-/* 
- * State functions. 
- */ 
- 
-static int 
-yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-static int 
-yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_emitter_emit_document_start(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_emitter_emit_document_content(yaml_emitter_t *emitter, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_emitter_emit_document_end(yaml_emitter_t *emitter, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int simple); 
- 
-static int 
-yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int simple); 
- 
-static int 
-yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, 
-        int root, int sequence, int mapping, int simple_key); 
- 
-static int 
-yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-static int 
-yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-static int 
-yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-static int 
-yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-/* 
- * Checkers. 
- */ 
- 
-static int 
-yaml_emitter_check_empty_document(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_check_simple_key(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event); 
- 
-/* 
- * Processors. 
- */ 
- 
-static int 
-yaml_emitter_process_anchor(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_process_tag(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_process_scalar(yaml_emitter_t *emitter); 
- 
-/* 
- * Analyzers. 
- */ 
- 
-static int 
-yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, 
-        yaml_version_directive_t version_directive); 
- 
-static int 
-yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, 
-        yaml_tag_directive_t tag_directive); 
- 
-static int 
-yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, 
-        yaml_char_t *anchor, int alias); 
- 
-static int 
-yaml_emitter_analyze_tag(yaml_emitter_t *emitter, 
-        yaml_char_t *tag); 
- 
-static int 
-yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length); 
- 
-static int 
-yaml_emitter_analyze_event(yaml_emitter_t *emitter, 
-        yaml_event_t *event); 
- 
-/* 
- * Writers. 
- */ 
- 
-static int 
-yaml_emitter_write_bom(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_write_indent(yaml_emitter_t *emitter); 
- 
-static int 
-yaml_emitter_write_indicator(yaml_emitter_t *emitter, 
+         1))
+
+/*
+ * Put a line break to the output buffer.
+ */
+
+#define PUT_BREAK(emitter)                                                      \
+    (FLUSH(emitter)                                                             \
+     && ((emitter->line_break == YAML_CR_BREAK ?                                \
+             (*(emitter->buffer.pointer++) = (yaml_char_t) '\r') :              \
+          emitter->line_break == YAML_LN_BREAK ?                                \
+             (*(emitter->buffer.pointer++) = (yaml_char_t) '\n') :              \
+          emitter->line_break == YAML_CRLN_BREAK ?                              \
+             (*(emitter->buffer.pointer++) = (yaml_char_t) '\r',                \
+              *(emitter->buffer.pointer++) = (yaml_char_t) '\n') : 0),          \
+         emitter->column = 0,                                                   \
+         emitter->line ++,                                                      \
+         1))
+
+/*
+ * Copy a character from a string into buffer.
+ */
+
+#define WRITE(emitter,string)                                                   \
+    (FLUSH(emitter)                                                             \
+     && (COPY(emitter->buffer,string),                                          \
+         emitter->column ++,                                                    \
+         1))
+
+/*
+ * Copy a line break character from a string into buffer.
+ */
+
+#define WRITE_BREAK(emitter,string)                                             \
+    (FLUSH(emitter)                                                             \
+     && (CHECK(string,'\n') ?                                                   \
+         (PUT_BREAK(emitter),                                                   \
+          string.pointer ++,                                                    \
+          1) :                                                                  \
+         (COPY(emitter->buffer,string),                                         \
+          emitter->column = 0,                                                  \
+          emitter->line ++,                                                     \
+          1)))
+
+/*
+ * API functions.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event);
+
+/*
+ * Utility functions.
+ */
+
+static int
+yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem);
+
+static int
+yaml_emitter_need_more_events(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_append_tag_directive(yaml_emitter_t *emitter,
+        yaml_tag_directive_t value, int allow_duplicates);
+
+static int
+yaml_emitter_increase_indent(yaml_emitter_t *emitter,
+        int flow, int indentless);
+
+/*
+ * State functions.
+ */
+
+static int
+yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event);
+
+static int
+yaml_emitter_emit_stream_start(yaml_emitter_t *emitter,
+        yaml_event_t *event);
+
+static int
+yaml_emitter_emit_document_start(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first);
+
+static int
+yaml_emitter_emit_document_content(yaml_emitter_t *emitter,
+        yaml_event_t *event);
+
+static int
+yaml_emitter_emit_document_end(yaml_emitter_t *emitter,
+        yaml_event_t *event);
+
+static int
+yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first);
+
+static int
+yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first);
+
+static int
+yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter,
+        yaml_event_t *event, int simple);
+
+static int
+yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first);
+
+static int
+yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first);
+
+static int
+yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter,
+        yaml_event_t *event, int simple);
+
+static int
+yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event,
+        int root, int sequence, int mapping, int simple_key);
+
+static int
+yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event);
+
+static int
+yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event);
+
+static int
+yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event);
+
+static int
+yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event);
+
+/*
+ * Checkers.
+ */
+
+static int
+yaml_emitter_check_empty_document(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_check_simple_key(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event);
+
+/*
+ * Processors.
+ */
+
+static int
+yaml_emitter_process_anchor(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_process_tag(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_process_scalar(yaml_emitter_t *emitter);
+
+/*
+ * Analyzers.
+ */
+
+static int
+yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter,
+        yaml_version_directive_t version_directive);
+
+static int
+yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter,
+        yaml_tag_directive_t tag_directive);
+
+static int
+yaml_emitter_analyze_anchor(yaml_emitter_t *emitter,
+        yaml_char_t *anchor, int alias);
+
+static int
+yaml_emitter_analyze_tag(yaml_emitter_t *emitter,
+        yaml_char_t *tag);
+
+static int
+yaml_emitter_analyze_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length);
+
+static int
+yaml_emitter_analyze_event(yaml_emitter_t *emitter,
+        yaml_event_t *event);
+
+/*
+ * Writers.
+ */
+
+static int
+yaml_emitter_write_bom(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_write_indent(yaml_emitter_t *emitter);
+
+static int
+yaml_emitter_write_indicator(yaml_emitter_t *emitter,
         const char *indicator, int need_whitespace,
-        int is_whitespace, int is_indention); 
- 
-static int 
-yaml_emitter_write_anchor(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length); 
- 
-static int 
-yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length); 
- 
-static int 
-yaml_emitter_write_tag_content(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, int need_whitespace); 
- 
-static int 
-yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, int allow_breaks); 
- 
-static int 
-yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, int allow_breaks); 
- 
-static int 
-yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, int allow_breaks); 
- 
-static int 
-yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter, 
-        yaml_string_t string); 
- 
-static int 
-yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length); 
- 
-static int 
-yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length); 
- 
-/* 
- * Set an emitter error and return 0. 
- */ 
- 
-static int 
-yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem) 
-{ 
-    emitter->error = YAML_EMITTER_ERROR; 
-    emitter->problem = problem; 
- 
-    return 0; 
-} 
- 
-/* 
- * Emit an event. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event) 
-{ 
-    if (!ENQUEUE(emitter, emitter->events, *event)) { 
-        yaml_event_delete(event); 
-        return 0; 
-    } 
- 
-    while (!yaml_emitter_need_more_events(emitter)) { 
-        if (!yaml_emitter_analyze_event(emitter, emitter->events.head)) 
-            return 0; 
-        if (!yaml_emitter_state_machine(emitter, emitter->events.head)) 
-            return 0; 
-        yaml_event_delete(&DEQUEUE(emitter, emitter->events)); 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if we need to accumulate more events before emitting. 
- * 
- * We accumulate extra 
- *  - 1 event for DOCUMENT-START 
- *  - 2 events for SEQUENCE-START 
- *  - 3 events for MAPPING-START 
- */ 
- 
-static int 
-yaml_emitter_need_more_events(yaml_emitter_t *emitter) 
-{ 
-    int level = 0; 
-    int accumulate = 0; 
-    yaml_event_t *event; 
- 
-    if (QUEUE_EMPTY(emitter, emitter->events)) 
-        return 1; 
- 
-    switch (emitter->events.head->type) { 
-        case YAML_DOCUMENT_START_EVENT: 
-            accumulate = 1; 
-            break; 
-        case YAML_SEQUENCE_START_EVENT: 
-            accumulate = 2; 
-            break; 
-        case YAML_MAPPING_START_EVENT: 
-            accumulate = 3; 
-            break; 
-        default: 
-            return 0; 
-    } 
- 
-    if (emitter->events.tail - emitter->events.head > accumulate) 
-        return 0; 
- 
-    for (event = emitter->events.head; event != emitter->events.tail; event ++) { 
-        switch (event->type) { 
-            case YAML_STREAM_START_EVENT: 
-            case YAML_DOCUMENT_START_EVENT: 
-            case YAML_SEQUENCE_START_EVENT: 
-            case YAML_MAPPING_START_EVENT: 
-                level += 1; 
-                break; 
-            case YAML_STREAM_END_EVENT: 
-            case YAML_DOCUMENT_END_EVENT: 
-            case YAML_SEQUENCE_END_EVENT: 
-            case YAML_MAPPING_END_EVENT: 
-                level -= 1; 
-                break; 
-            default: 
-                break; 
-        } 
-        if (!level) 
-            return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Append a directive to the directives stack. 
- */ 
- 
-static int 
-yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, 
-        yaml_tag_directive_t value, int allow_duplicates) 
-{ 
-    yaml_tag_directive_t *tag_directive; 
-    yaml_tag_directive_t copy = { NULL, NULL }; 
- 
-    for (tag_directive = emitter->tag_directives.start; 
-            tag_directive != emitter->tag_directives.top; tag_directive ++) { 
-        if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) { 
-            if (allow_duplicates) 
-                return 1; 
-            return yaml_emitter_set_emitter_error(emitter, 
-                    "duplicate %TAG directive"); 
-        } 
-    } 
- 
-    copy.handle = yaml_strdup(value.handle); 
-    copy.prefix = yaml_strdup(value.prefix); 
-    if (!copy.handle || !copy.prefix) { 
-        emitter->error = YAML_MEMORY_ERROR; 
-        goto error; 
-    } 
- 
-    if (!PUSH(emitter, emitter->tag_directives, copy)) 
-        goto error; 
- 
-    return 1; 
- 
-error: 
-    yaml_free(copy.handle); 
-    yaml_free(copy.prefix); 
-    return 0; 
-} 
- 
-/* 
- * Increase the indentation level. 
- */ 
- 
-static int 
-yaml_emitter_increase_indent(yaml_emitter_t *emitter, 
-        int flow, int indentless) 
-{ 
-    if (!PUSH(emitter, emitter->indents, emitter->indent)) 
-        return 0; 
- 
-    if (emitter->indent < 0) { 
-        emitter->indent = flow ? emitter->best_indent : 0; 
-    } 
-    else if (!indentless) { 
-        emitter->indent += emitter->best_indent; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * State dispatcher. 
- */ 
- 
-static int 
-yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event) 
-{ 
-    switch (emitter->state) 
-    { 
-        case YAML_EMIT_STREAM_START_STATE: 
-            return yaml_emitter_emit_stream_start(emitter, event); 
- 
-        case YAML_EMIT_FIRST_DOCUMENT_START_STATE: 
-            return yaml_emitter_emit_document_start(emitter, event, 1); 
- 
-        case YAML_EMIT_DOCUMENT_START_STATE: 
-            return yaml_emitter_emit_document_start(emitter, event, 0); 
- 
-        case YAML_EMIT_DOCUMENT_CONTENT_STATE: 
-            return yaml_emitter_emit_document_content(emitter, event); 
- 
-        case YAML_EMIT_DOCUMENT_END_STATE: 
-            return yaml_emitter_emit_document_end(emitter, event); 
- 
-        case YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE: 
-            return yaml_emitter_emit_flow_sequence_item(emitter, event, 1); 
- 
-        case YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE: 
-            return yaml_emitter_emit_flow_sequence_item(emitter, event, 0); 
- 
-        case YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE: 
-            return yaml_emitter_emit_flow_mapping_key(emitter, event, 1); 
- 
-        case YAML_EMIT_FLOW_MAPPING_KEY_STATE: 
-            return yaml_emitter_emit_flow_mapping_key(emitter, event, 0); 
- 
-        case YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE: 
-            return yaml_emitter_emit_flow_mapping_value(emitter, event, 1); 
- 
-        case YAML_EMIT_FLOW_MAPPING_VALUE_STATE: 
-            return yaml_emitter_emit_flow_mapping_value(emitter, event, 0); 
- 
-        case YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE: 
-            return yaml_emitter_emit_block_sequence_item(emitter, event, 1); 
- 
-        case YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE: 
-            return yaml_emitter_emit_block_sequence_item(emitter, event, 0); 
- 
-        case YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE: 
-            return yaml_emitter_emit_block_mapping_key(emitter, event, 1); 
- 
-        case YAML_EMIT_BLOCK_MAPPING_KEY_STATE: 
-            return yaml_emitter_emit_block_mapping_key(emitter, event, 0); 
- 
-        case YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE: 
-            return yaml_emitter_emit_block_mapping_value(emitter, event, 1); 
- 
-        case YAML_EMIT_BLOCK_MAPPING_VALUE_STATE: 
-            return yaml_emitter_emit_block_mapping_value(emitter, event, 0); 
- 
-        case YAML_EMIT_END_STATE: 
-            return yaml_emitter_set_emitter_error(emitter, 
-                    "expected nothing after STREAM-END"); 
- 
-        default: 
-            assert(1);      /* Invalid state. */ 
-    } 
- 
-    return 0; 
-} 
- 
-/* 
- * Expect STREAM-START. 
- */ 
- 
-static int 
-yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, 
-        yaml_event_t *event) 
-{ 
+        int is_whitespace, int is_indention);
+
+static int
+yaml_emitter_write_anchor(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length);
+
+static int
+yaml_emitter_write_tag_handle(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length);
+
+static int
+yaml_emitter_write_tag_content(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length, int need_whitespace);
+
+static int
+yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length, int allow_breaks);
+
+static int
+yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length, int allow_breaks);
+
+static int
+yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length, int allow_breaks);
+
+static int
+yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter,
+        yaml_string_t string);
+
+static int
+yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length);
+
+static int
+yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length);
+
+/*
+ * Set an emitter error and return 0.
+ */
+
+static int
+yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem)
+{
+    emitter->error = YAML_EMITTER_ERROR;
+    emitter->problem = problem;
+
+    return 0;
+}
+
+/*
+ * Emit an event.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event)
+{
+    if (!ENQUEUE(emitter, emitter->events, *event)) {
+        yaml_event_delete(event);
+        return 0;
+    }
+
+    while (!yaml_emitter_need_more_events(emitter)) {
+        if (!yaml_emitter_analyze_event(emitter, emitter->events.head))
+            return 0;
+        if (!yaml_emitter_state_machine(emitter, emitter->events.head))
+            return 0;
+        yaml_event_delete(&DEQUEUE(emitter, emitter->events));
+    }
+
+    return 1;
+}
+
+/*
+ * Check if we need to accumulate more events before emitting.
+ *
+ * We accumulate extra
+ *  - 1 event for DOCUMENT-START
+ *  - 2 events for SEQUENCE-START
+ *  - 3 events for MAPPING-START
+ */
+
+static int
+yaml_emitter_need_more_events(yaml_emitter_t *emitter)
+{
+    int level = 0;
+    int accumulate = 0;
+    yaml_event_t *event;
+
+    if (QUEUE_EMPTY(emitter, emitter->events))
+        return 1;
+
+    switch (emitter->events.head->type) {
+        case YAML_DOCUMENT_START_EVENT:
+            accumulate = 1;
+            break;
+        case YAML_SEQUENCE_START_EVENT:
+            accumulate = 2;
+            break;
+        case YAML_MAPPING_START_EVENT:
+            accumulate = 3;
+            break;
+        default:
+            return 0;
+    }
+
+    if (emitter->events.tail - emitter->events.head > accumulate)
+        return 0;
+
+    for (event = emitter->events.head; event != emitter->events.tail; event ++) {
+        switch (event->type) {
+            case YAML_STREAM_START_EVENT:
+            case YAML_DOCUMENT_START_EVENT:
+            case YAML_SEQUENCE_START_EVENT:
+            case YAML_MAPPING_START_EVENT:
+                level += 1;
+                break;
+            case YAML_STREAM_END_EVENT:
+            case YAML_DOCUMENT_END_EVENT:
+            case YAML_SEQUENCE_END_EVENT:
+            case YAML_MAPPING_END_EVENT:
+                level -= 1;
+                break;
+            default:
+                break;
+        }
+        if (!level)
+            return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Append a directive to the directives stack.
+ */
+
+static int
+yaml_emitter_append_tag_directive(yaml_emitter_t *emitter,
+        yaml_tag_directive_t value, int allow_duplicates)
+{
+    yaml_tag_directive_t *tag_directive;
+    yaml_tag_directive_t copy = { NULL, NULL };
+
+    for (tag_directive = emitter->tag_directives.start;
+            tag_directive != emitter->tag_directives.top; tag_directive ++) {
+        if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) {
+            if (allow_duplicates)
+                return 1;
+            return yaml_emitter_set_emitter_error(emitter,
+                    "duplicate %TAG directive");
+        }
+    }
+
+    copy.handle = yaml_strdup(value.handle);
+    copy.prefix = yaml_strdup(value.prefix);
+    if (!copy.handle || !copy.prefix) {
+        emitter->error = YAML_MEMORY_ERROR;
+        goto error;
+    }
+
+    if (!PUSH(emitter, emitter->tag_directives, copy))
+        goto error;
+
+    return 1;
+
+error:
+    yaml_free(copy.handle);
+    yaml_free(copy.prefix);
+    return 0;
+}
+
+/*
+ * Increase the indentation level.
+ */
+
+static int
+yaml_emitter_increase_indent(yaml_emitter_t *emitter,
+        int flow, int indentless)
+{
+    if (!PUSH(emitter, emitter->indents, emitter->indent))
+        return 0;
+
+    if (emitter->indent < 0) {
+        emitter->indent = flow ? emitter->best_indent : 0;
+    }
+    else if (!indentless) {
+        emitter->indent += emitter->best_indent;
+    }
+
+    return 1;
+}
+
+/*
+ * State dispatcher.
+ */
+
+static int
+yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event)
+{
+    switch (emitter->state)
+    {
+        case YAML_EMIT_STREAM_START_STATE:
+            return yaml_emitter_emit_stream_start(emitter, event);
+
+        case YAML_EMIT_FIRST_DOCUMENT_START_STATE:
+            return yaml_emitter_emit_document_start(emitter, event, 1);
+
+        case YAML_EMIT_DOCUMENT_START_STATE:
+            return yaml_emitter_emit_document_start(emitter, event, 0);
+
+        case YAML_EMIT_DOCUMENT_CONTENT_STATE:
+            return yaml_emitter_emit_document_content(emitter, event);
+
+        case YAML_EMIT_DOCUMENT_END_STATE:
+            return yaml_emitter_emit_document_end(emitter, event);
+
+        case YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE:
+            return yaml_emitter_emit_flow_sequence_item(emitter, event, 1);
+
+        case YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE:
+            return yaml_emitter_emit_flow_sequence_item(emitter, event, 0);
+
+        case YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE:
+            return yaml_emitter_emit_flow_mapping_key(emitter, event, 1);
+
+        case YAML_EMIT_FLOW_MAPPING_KEY_STATE:
+            return yaml_emitter_emit_flow_mapping_key(emitter, event, 0);
+
+        case YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE:
+            return yaml_emitter_emit_flow_mapping_value(emitter, event, 1);
+
+        case YAML_EMIT_FLOW_MAPPING_VALUE_STATE:
+            return yaml_emitter_emit_flow_mapping_value(emitter, event, 0);
+
+        case YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE:
+            return yaml_emitter_emit_block_sequence_item(emitter, event, 1);
+
+        case YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE:
+            return yaml_emitter_emit_block_sequence_item(emitter, event, 0);
+
+        case YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE:
+            return yaml_emitter_emit_block_mapping_key(emitter, event, 1);
+
+        case YAML_EMIT_BLOCK_MAPPING_KEY_STATE:
+            return yaml_emitter_emit_block_mapping_key(emitter, event, 0);
+
+        case YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE:
+            return yaml_emitter_emit_block_mapping_value(emitter, event, 1);
+
+        case YAML_EMIT_BLOCK_MAPPING_VALUE_STATE:
+            return yaml_emitter_emit_block_mapping_value(emitter, event, 0);
+
+        case YAML_EMIT_END_STATE:
+            return yaml_emitter_set_emitter_error(emitter,
+                    "expected nothing after STREAM-END");
+
+        default:
+            assert(1);      /* Invalid state. */
+    }
+
+    return 0;
+}
+
+/*
+ * Expect STREAM-START.
+ */
+
+static int
+yaml_emitter_emit_stream_start(yaml_emitter_t *emitter,
+        yaml_event_t *event)
+{
     emitter->open_ended = 0;
-    if (event->type == YAML_STREAM_START_EVENT) 
-    { 
-        if (!emitter->encoding) { 
-            emitter->encoding = event->data.stream_start.encoding; 
-        } 
- 
-        if (!emitter->encoding) { 
-            emitter->encoding = YAML_UTF8_ENCODING; 
-        } 
- 
-        if (emitter->best_indent < 2 || emitter->best_indent > 9) { 
-            emitter->best_indent  = 2; 
-        } 
- 
-        if (emitter->best_width >= 0 
-                && emitter->best_width <= emitter->best_indent*2) { 
-            emitter->best_width = 80; 
-        } 
- 
-        if (emitter->best_width < 0) { 
-            emitter->best_width = INT_MAX; 
-        } 
-
-        if (!emitter->line_break) { 
-            emitter->line_break = YAML_LN_BREAK; 
-        } 
- 
-        emitter->indent = -1; 
- 
-        emitter->line = 0; 
-        emitter->column = 0; 
-        emitter->whitespace = 1; 
-        emitter->indention = 1; 
- 
-        if (emitter->encoding != YAML_UTF8_ENCODING) { 
-            if (!yaml_emitter_write_bom(emitter)) 
-                return 0; 
-        } 
- 
-        emitter->state = YAML_EMIT_FIRST_DOCUMENT_START_STATE; 
- 
-        return 1; 
-    } 
- 
-    return yaml_emitter_set_emitter_error(emitter, 
-            "expected STREAM-START"); 
-} 
- 
-/* 
- * Expect DOCUMENT-START or STREAM-END. 
- */ 
- 
-static int 
-yaml_emitter_emit_document_start(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first) 
-{ 
-    if (event->type == YAML_DOCUMENT_START_EVENT) 
-    { 
-        yaml_tag_directive_t default_tag_directives[] = { 
-            {(yaml_char_t *)"!", (yaml_char_t *)"!"}, 
-            {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"}, 
-            {NULL, NULL} 
-        }; 
-        yaml_tag_directive_t *tag_directive; 
-        int implicit; 
- 
-        if (event->data.document_start.version_directive) { 
-            if (!yaml_emitter_analyze_version_directive(emitter, 
-                        *event->data.document_start.version_directive)) 
-                return 0; 
-        } 
- 
-        for (tag_directive = event->data.document_start.tag_directives.start; 
-                tag_directive != event->data.document_start.tag_directives.end; 
-                tag_directive ++) { 
-            if (!yaml_emitter_analyze_tag_directive(emitter, *tag_directive)) 
-                return 0; 
-            if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 0)) 
-                return 0; 
-        } 
- 
-        for (tag_directive = default_tag_directives; 
-                tag_directive->handle; tag_directive ++) { 
-            if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 1)) 
-                return 0; 
-        } 
- 
-        implicit = event->data.document_start.implicit; 
-        if (!first || emitter->canonical) { 
-            implicit = 0; 
-        } 
- 
-        if ((event->data.document_start.version_directive || 
-                    (event->data.document_start.tag_directives.start 
-                     != event->data.document_start.tag_directives.end)) && 
-                emitter->open_ended) 
-        { 
-            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) 
-                return 0; 
-            if (!yaml_emitter_write_indent(emitter)) 
-                return 0; 
-        } 
+    if (event->type == YAML_STREAM_START_EVENT)
+    {
+        if (!emitter->encoding) {
+            emitter->encoding = event->data.stream_start.encoding;
+        }
+
+        if (!emitter->encoding) {
+            emitter->encoding = YAML_UTF8_ENCODING;
+        }
+
+        if (emitter->best_indent < 2 || emitter->best_indent > 9) {
+            emitter->best_indent  = 2;
+        }
+
+        if (emitter->best_width >= 0
+                && emitter->best_width <= emitter->best_indent*2) {
+            emitter->best_width = 80;
+        }
+
+        if (emitter->best_width < 0) {
+            emitter->best_width = INT_MAX;
+        }
+
+        if (!emitter->line_break) {
+            emitter->line_break = YAML_LN_BREAK;
+        }
+
+        emitter->indent = -1;
+
+        emitter->line = 0;
+        emitter->column = 0;
+        emitter->whitespace = 1;
+        emitter->indention = 1;
+
+        if (emitter->encoding != YAML_UTF8_ENCODING) {
+            if (!yaml_emitter_write_bom(emitter))
+                return 0;
+        }
+
+        emitter->state = YAML_EMIT_FIRST_DOCUMENT_START_STATE;
+
+        return 1;
+    }
+
+    return yaml_emitter_set_emitter_error(emitter,
+            "expected STREAM-START");
+}
+
+/*
+ * Expect DOCUMENT-START or STREAM-END.
+ */
+
+static int
+yaml_emitter_emit_document_start(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first)
+{
+    if (event->type == YAML_DOCUMENT_START_EVENT)
+    {
+        yaml_tag_directive_t default_tag_directives[] = {
+            {(yaml_char_t *)"!", (yaml_char_t *)"!"},
+            {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"},
+            {NULL, NULL}
+        };
+        yaml_tag_directive_t *tag_directive;
+        int implicit;
+
+        if (event->data.document_start.version_directive) {
+            if (!yaml_emitter_analyze_version_directive(emitter,
+                        *event->data.document_start.version_directive))
+                return 0;
+        }
+
+        for (tag_directive = event->data.document_start.tag_directives.start;
+                tag_directive != event->data.document_start.tag_directives.end;
+                tag_directive ++) {
+            if (!yaml_emitter_analyze_tag_directive(emitter, *tag_directive))
+                return 0;
+            if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 0))
+                return 0;
+        }
+
+        for (tag_directive = default_tag_directives;
+                tag_directive->handle; tag_directive ++) {
+            if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 1))
+                return 0;
+        }
+
+        implicit = event->data.document_start.implicit;
+        if (!first || emitter->canonical) {
+            implicit = 0;
+        }
+
+        if ((event->data.document_start.version_directive ||
+                    (event->data.document_start.tag_directives.start
+                     != event->data.document_start.tag_directives.end)) &&
+                emitter->open_ended)
+        {
+            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0))
+                return 0;
+            if (!yaml_emitter_write_indent(emitter))
+                return 0;
+        }
         emitter->open_ended = 0;
- 
-        if (event->data.document_start.version_directive) { 
-            implicit = 0; 
-            if (!yaml_emitter_write_indicator(emitter, "%YAML", 1, 0, 0)) 
-                return 0; 
+
+        if (event->data.document_start.version_directive) {
+            implicit = 0;
+            if (!yaml_emitter_write_indicator(emitter, "%YAML", 1, 0, 0))
+                return 0;
             if (event->data.document_start.version_directive->minor == 1) {
                 if (!yaml_emitter_write_indicator(emitter, "1.1", 1, 0, 0))
                     return 0;
@@ -612,53 +612,53 @@ yaml_emitter_emit_document_start(yaml_emitter_t *emitter,
                 if (!yaml_emitter_write_indicator(emitter, "1.2", 1, 0, 0))
                     return 0;
             }
-            if (!yaml_emitter_write_indent(emitter)) 
-                return 0; 
-        } 
-
-        if (event->data.document_start.tag_directives.start 
-                != event->data.document_start.tag_directives.end) { 
-            implicit = 0; 
-            for (tag_directive = event->data.document_start.tag_directives.start; 
-                    tag_directive != event->data.document_start.tag_directives.end; 
-                    tag_directive ++) { 
-                if (!yaml_emitter_write_indicator(emitter, "%TAG", 1, 0, 0)) 
-                    return 0; 
-                if (!yaml_emitter_write_tag_handle(emitter, tag_directive->handle, 
-                            strlen((char *)tag_directive->handle))) 
-                    return 0; 
-                if (!yaml_emitter_write_tag_content(emitter, tag_directive->prefix, 
-                            strlen((char *)tag_directive->prefix), 1)) 
-                    return 0; 
-                if (!yaml_emitter_write_indent(emitter)) 
-                    return 0; 
-            } 
-        } 
- 
-        if (yaml_emitter_check_empty_document(emitter)) { 
-            implicit = 0; 
-        } 
- 
-        if (!implicit) { 
-            if (!yaml_emitter_write_indent(emitter)) 
-                return 0; 
-            if (!yaml_emitter_write_indicator(emitter, "---", 1, 0, 0)) 
-                return 0; 
-            if (emitter->canonical) { 
-                if (!yaml_emitter_write_indent(emitter)) 
-                    return 0; 
-            } 
-        } 
- 
-        emitter->state = YAML_EMIT_DOCUMENT_CONTENT_STATE; 
- 
+            if (!yaml_emitter_write_indent(emitter))
+                return 0;
+        }
+
+        if (event->data.document_start.tag_directives.start
+                != event->data.document_start.tag_directives.end) {
+            implicit = 0;
+            for (tag_directive = event->data.document_start.tag_directives.start;
+                    tag_directive != event->data.document_start.tag_directives.end;
+                    tag_directive ++) {
+                if (!yaml_emitter_write_indicator(emitter, "%TAG", 1, 0, 0))
+                    return 0;
+                if (!yaml_emitter_write_tag_handle(emitter, tag_directive->handle,
+                            strlen((char *)tag_directive->handle)))
+                    return 0;
+                if (!yaml_emitter_write_tag_content(emitter, tag_directive->prefix,
+                            strlen((char *)tag_directive->prefix), 1))
+                    return 0;
+                if (!yaml_emitter_write_indent(emitter))
+                    return 0;
+            }
+        }
+
+        if (yaml_emitter_check_empty_document(emitter)) {
+            implicit = 0;
+        }
+
+        if (!implicit) {
+            if (!yaml_emitter_write_indent(emitter))
+                return 0;
+            if (!yaml_emitter_write_indicator(emitter, "---", 1, 0, 0))
+                return 0;
+            if (emitter->canonical) {
+                if (!yaml_emitter_write_indent(emitter))
+                    return 0;
+            }
+        }
+
+        emitter->state = YAML_EMIT_DOCUMENT_CONTENT_STATE;
+
         emitter->open_ended = 0;
-        return 1; 
-    } 
- 
-    else if (event->type == YAML_STREAM_END_EVENT) 
-    { 
- 
+        return 1;
+    }
+
+    else if (event->type == YAML_STREAM_END_EVENT)
+    {
+
         /**
          * This can happen if a block scalar with trailing empty lines
          * is at the end of the stream
@@ -671,1260 +671,1260 @@ yaml_emitter_emit_document_start(yaml_emitter_t *emitter,
             if (!yaml_emitter_write_indent(emitter))
                 return 0;
         }
-        if (!yaml_emitter_flush(emitter)) 
-            return 0; 
- 
-        emitter->state = YAML_EMIT_END_STATE; 
- 
-        return 1; 
-    } 
- 
-    return yaml_emitter_set_emitter_error(emitter, 
-            "expected DOCUMENT-START or STREAM-END"); 
-} 
- 
-/* 
- * Expect the root node. 
- */ 
- 
-static int 
-yaml_emitter_emit_document_content(yaml_emitter_t *emitter, 
-        yaml_event_t *event) 
-{ 
-    if (!PUSH(emitter, emitter->states, YAML_EMIT_DOCUMENT_END_STATE)) 
-        return 0; 
- 
-    return yaml_emitter_emit_node(emitter, event, 1, 0, 0, 0); 
-} 
- 
-/* 
- * Expect DOCUMENT-END. 
- */ 
- 
-static int 
-yaml_emitter_emit_document_end(yaml_emitter_t *emitter, 
-        yaml_event_t *event) 
-{ 
-    if (event->type == YAML_DOCUMENT_END_EVENT) 
-    { 
-        if (!yaml_emitter_write_indent(emitter)) 
-            return 0; 
-        if (!event->data.document_end.implicit) { 
-            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) 
-                return 0; 
+        if (!yaml_emitter_flush(emitter))
+            return 0;
+
+        emitter->state = YAML_EMIT_END_STATE;
+
+        return 1;
+    }
+
+    return yaml_emitter_set_emitter_error(emitter,
+            "expected DOCUMENT-START or STREAM-END");
+}
+
+/*
+ * Expect the root node.
+ */
+
+static int
+yaml_emitter_emit_document_content(yaml_emitter_t *emitter,
+        yaml_event_t *event)
+{
+    if (!PUSH(emitter, emitter->states, YAML_EMIT_DOCUMENT_END_STATE))
+        return 0;
+
+    return yaml_emitter_emit_node(emitter, event, 1, 0, 0, 0);
+}
+
+/*
+ * Expect DOCUMENT-END.
+ */
+
+static int
+yaml_emitter_emit_document_end(yaml_emitter_t *emitter,
+        yaml_event_t *event)
+{
+    if (event->type == YAML_DOCUMENT_END_EVENT)
+    {
+        if (!yaml_emitter_write_indent(emitter))
+            return 0;
+        if (!event->data.document_end.implicit) {
+            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0))
+                return 0;
             emitter->open_ended = 0;
-            if (!yaml_emitter_write_indent(emitter)) 
-                return 0; 
-        } 
+            if (!yaml_emitter_write_indent(emitter))
+                return 0;
+        }
         else if (!emitter->open_ended)
             emitter->open_ended = 1;
-        if (!yaml_emitter_flush(emitter)) 
-            return 0; 
- 
-        emitter->state = YAML_EMIT_DOCUMENT_START_STATE; 
- 
-        while (!STACK_EMPTY(emitter, emitter->tag_directives)) { 
-            yaml_tag_directive_t tag_directive = POP(emitter, 
-                    emitter->tag_directives); 
-            yaml_free(tag_directive.handle); 
-            yaml_free(tag_directive.prefix); 
-        } 
- 
-        return 1; 
-    } 
- 
-    return yaml_emitter_set_emitter_error(emitter, 
-            "expected DOCUMENT-END"); 
-} 
- 
-/* 
+        if (!yaml_emitter_flush(emitter))
+            return 0;
+
+        emitter->state = YAML_EMIT_DOCUMENT_START_STATE;
+
+        while (!STACK_EMPTY(emitter, emitter->tag_directives)) {
+            yaml_tag_directive_t tag_directive = POP(emitter,
+                    emitter->tag_directives);
+            yaml_free(tag_directive.handle);
+            yaml_free(tag_directive.prefix);
+        }
+
+        return 1;
+    }
+
+    return yaml_emitter_set_emitter_error(emitter,
+            "expected DOCUMENT-END");
+}
+
+/*
  *
- * Expect a flow item node. 
- */ 
- 
-static int 
-yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first) 
-{ 
-    if (first) 
-    { 
-        if (!yaml_emitter_write_indicator(emitter, "[", 1, 1, 0)) 
-            return 0; 
-        if (!yaml_emitter_increase_indent(emitter, 1, 0)) 
-            return 0; 
-        emitter->flow_level ++; 
-    } 
- 
-    if (event->type == YAML_SEQUENCE_END_EVENT) 
-    { 
-        emitter->flow_level --; 
-        emitter->indent = POP(emitter, emitter->indents); 
-        if (emitter->canonical && !first) { 
-            if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) 
-                return 0; 
-            if (!yaml_emitter_write_indent(emitter)) 
-                return 0; 
-        } 
-        if (!yaml_emitter_write_indicator(emitter, "]", 0, 0, 0)) 
-            return 0; 
-        emitter->state = POP(emitter, emitter->states); 
- 
-        return 1; 
-    } 
- 
-    if (!first) { 
-        if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) 
-            return 0; 
-    } 
- 
-    if (emitter->canonical || emitter->column > emitter->best_width) { 
-        if (!yaml_emitter_write_indent(emitter)) 
-            return 0; 
-    } 
-    if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE)) 
-        return 0; 
- 
-    return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); 
-} 
- 
-/* 
- * Expect a flow key node. 
- */ 
- 
-static int 
-yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first) 
-{ 
-    if (first) 
-    { 
-        if (!yaml_emitter_write_indicator(emitter, "{", 1, 1, 0)) 
-            return 0; 
-        if (!yaml_emitter_increase_indent(emitter, 1, 0)) 
-            return 0; 
-        emitter->flow_level ++; 
-    } 
- 
-    if (event->type == YAML_MAPPING_END_EVENT) 
-    { 
-        emitter->flow_level --; 
-        emitter->indent = POP(emitter, emitter->indents); 
-        if (emitter->canonical && !first) { 
-            if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) 
-                return 0; 
-            if (!yaml_emitter_write_indent(emitter)) 
-                return 0; 
-        } 
-        if (!yaml_emitter_write_indicator(emitter, "}", 0, 0, 0)) 
-            return 0; 
-        emitter->state = POP(emitter, emitter->states); 
- 
-        return 1; 
-    } 
- 
-    if (!first) { 
-        if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) 
-            return 0; 
-    } 
-    if (emitter->canonical || emitter->column > emitter->best_width) { 
-        if (!yaml_emitter_write_indent(emitter)) 
-            return 0; 
-    } 
- 
-    if (!emitter->canonical && yaml_emitter_check_simple_key(emitter)) 
-    { 
-        if (!PUSH(emitter, emitter->states, 
-                    YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)) 
-            return 0; 
- 
-        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); 
-    } 
-    else 
-    { 
-        if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 0)) 
-            return 0; 
-        if (!PUSH(emitter, emitter->states, 
-                    YAML_EMIT_FLOW_MAPPING_VALUE_STATE)) 
-            return 0; 
- 
-        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); 
-    } 
-} 
- 
-/* 
- * Expect a flow value node. 
- */ 
- 
-static int 
-yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int simple) 
-{ 
-    if (simple) { 
-        if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) 
-            return 0; 
-    } 
-    else { 
-        if (emitter->canonical || emitter->column > emitter->best_width) { 
-            if (!yaml_emitter_write_indent(emitter)) 
-                return 0; 
-        } 
-        if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 0)) 
-            return 0; 
-    } 
-    if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_MAPPING_KEY_STATE)) 
-        return 0; 
-    return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); 
-} 
- 
-/* 
- * Expect a block item node. 
- */ 
- 
-static int 
-yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first) 
-{ 
-    if (first) 
-    { 
-        if (!yaml_emitter_increase_indent(emitter, 0, 
-                    (emitter->mapping_context && !emitter->indention))) 
-            return 0; 
-    } 
- 
-    if (event->type == YAML_SEQUENCE_END_EVENT) 
-    { 
-        emitter->indent = POP(emitter, emitter->indents); 
-        emitter->state = POP(emitter, emitter->states); 
- 
-        return 1; 
-    } 
- 
-    if (!yaml_emitter_write_indent(emitter)) 
-        return 0; 
-    if (!yaml_emitter_write_indicator(emitter, "-", 1, 0, 1)) 
-        return 0; 
-    if (!PUSH(emitter, emitter->states, 
-                YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE)) 
-        return 0; 
- 
-    return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); 
-} 
- 
-/* 
- * Expect a block key node. 
- */ 
- 
-static int 
-yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int first) 
-{ 
-    if (first) 
-    { 
-        if (!yaml_emitter_increase_indent(emitter, 0, 0)) 
-            return 0; 
-    } 
- 
-    if (event->type == YAML_MAPPING_END_EVENT) 
-    { 
-        emitter->indent = POP(emitter, emitter->indents); 
-        emitter->state = POP(emitter, emitter->states); 
- 
-        return 1; 
-    } 
- 
-    if (!yaml_emitter_write_indent(emitter)) 
-        return 0; 
- 
-    if (yaml_emitter_check_simple_key(emitter)) 
-    { 
-        if (!PUSH(emitter, emitter->states, 
-                    YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)) 
-            return 0; 
- 
-        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); 
-    } 
-    else 
-    { 
-        if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 1)) 
-            return 0; 
-        if (!PUSH(emitter, emitter->states, 
-                    YAML_EMIT_BLOCK_MAPPING_VALUE_STATE)) 
-            return 0; 
- 
-        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); 
-    } 
-} 
- 
-/* 
- * Expect a block value node. 
- */ 
- 
-static int 
-yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, 
-        yaml_event_t *event, int simple) 
-{ 
-    if (simple) { 
-        if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) 
-            return 0; 
-    } 
-    else { 
-        if (!yaml_emitter_write_indent(emitter)) 
-            return 0; 
-        if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 1)) 
-            return 0; 
-    } 
-    if (!PUSH(emitter, emitter->states, 
-                YAML_EMIT_BLOCK_MAPPING_KEY_STATE)) 
-        return 0; 
- 
-    return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); 
-} 
- 
-/* 
- * Expect a node. 
- */ 
- 
-static int 
-yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, 
-        int root, int sequence, int mapping, int simple_key) 
-{ 
-    emitter->root_context = root; 
-    emitter->sequence_context = sequence; 
-    emitter->mapping_context = mapping; 
-    emitter->simple_key_context = simple_key; 
- 
-    switch (event->type) 
-    { 
-        case YAML_ALIAS_EVENT: 
-            return yaml_emitter_emit_alias(emitter, event); 
- 
-        case YAML_SCALAR_EVENT: 
-            return yaml_emitter_emit_scalar(emitter, event); 
- 
-        case YAML_SEQUENCE_START_EVENT: 
-            return yaml_emitter_emit_sequence_start(emitter, event); 
- 
-        case YAML_MAPPING_START_EVENT: 
-            return yaml_emitter_emit_mapping_start(emitter, event); 
- 
-        default: 
-            return yaml_emitter_set_emitter_error(emitter, 
-                    "expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS"); 
-    } 
- 
-    return 0; 
-} 
- 
-/* 
- * Expect ALIAS. 
- */ 
- 
-static int 
+ * Expect a flow item node.
+ */
+
+static int
+yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first)
+{
+    if (first)
+    {
+        if (!yaml_emitter_write_indicator(emitter, "[", 1, 1, 0))
+            return 0;
+        if (!yaml_emitter_increase_indent(emitter, 1, 0))
+            return 0;
+        emitter->flow_level ++;
+    }
+
+    if (event->type == YAML_SEQUENCE_END_EVENT)
+    {
+        emitter->flow_level --;
+        emitter->indent = POP(emitter, emitter->indents);
+        if (emitter->canonical && !first) {
+            if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))
+                return 0;
+            if (!yaml_emitter_write_indent(emitter))
+                return 0;
+        }
+        if (!yaml_emitter_write_indicator(emitter, "]", 0, 0, 0))
+            return 0;
+        emitter->state = POP(emitter, emitter->states);
+
+        return 1;
+    }
+
+    if (!first) {
+        if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))
+            return 0;
+    }
+
+    if (emitter->canonical || emitter->column > emitter->best_width) {
+        if (!yaml_emitter_write_indent(emitter))
+            return 0;
+    }
+    if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE))
+        return 0;
+
+    return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0);
+}
+
+/*
+ * Expect a flow key node.
+ */
+
+static int
+yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first)
+{
+    if (first)
+    {
+        if (!yaml_emitter_write_indicator(emitter, "{", 1, 1, 0))
+            return 0;
+        if (!yaml_emitter_increase_indent(emitter, 1, 0))
+            return 0;
+        emitter->flow_level ++;
+    }
+
+    if (event->type == YAML_MAPPING_END_EVENT)
+    {
+        emitter->flow_level --;
+        emitter->indent = POP(emitter, emitter->indents);
+        if (emitter->canonical && !first) {
+            if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))
+                return 0;
+            if (!yaml_emitter_write_indent(emitter))
+                return 0;
+        }
+        if (!yaml_emitter_write_indicator(emitter, "}", 0, 0, 0))
+            return 0;
+        emitter->state = POP(emitter, emitter->states);
+
+        return 1;
+    }
+
+    if (!first) {
+        if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))
+            return 0;
+    }
+    if (emitter->canonical || emitter->column > emitter->best_width) {
+        if (!yaml_emitter_write_indent(emitter))
+            return 0;
+    }
+
+    if (!emitter->canonical && yaml_emitter_check_simple_key(emitter))
+    {
+        if (!PUSH(emitter, emitter->states,
+                    YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE))
+            return 0;
+
+        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1);
+    }
+    else
+    {
+        if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 0))
+            return 0;
+        if (!PUSH(emitter, emitter->states,
+                    YAML_EMIT_FLOW_MAPPING_VALUE_STATE))
+            return 0;
+
+        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);
+    }
+}
+
+/*
+ * Expect a flow value node.
+ */
+
+static int
+yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter,
+        yaml_event_t *event, int simple)
+{
+    if (simple) {
+        if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0))
+            return 0;
+    }
+    else {
+        if (emitter->canonical || emitter->column > emitter->best_width) {
+            if (!yaml_emitter_write_indent(emitter))
+                return 0;
+        }
+        if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 0))
+            return 0;
+    }
+    if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_MAPPING_KEY_STATE))
+        return 0;
+    return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);
+}
+
+/*
+ * Expect a block item node.
+ */
+
+static int
+yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first)
+{
+    if (first)
+    {
+        if (!yaml_emitter_increase_indent(emitter, 0,
+                    (emitter->mapping_context && !emitter->indention)))
+            return 0;
+    }
+
+    if (event->type == YAML_SEQUENCE_END_EVENT)
+    {
+        emitter->indent = POP(emitter, emitter->indents);
+        emitter->state = POP(emitter, emitter->states);
+
+        return 1;
+    }
+
+    if (!yaml_emitter_write_indent(emitter))
+        return 0;
+    if (!yaml_emitter_write_indicator(emitter, "-", 1, 0, 1))
+        return 0;
+    if (!PUSH(emitter, emitter->states,
+                YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE))
+        return 0;
+
+    return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0);
+}
+
+/*
+ * Expect a block key node.
+ */
+
+static int
+yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter,
+        yaml_event_t *event, int first)
+{
+    if (first)
+    {
+        if (!yaml_emitter_increase_indent(emitter, 0, 0))
+            return 0;
+    }
+
+    if (event->type == YAML_MAPPING_END_EVENT)
+    {
+        emitter->indent = POP(emitter, emitter->indents);
+        emitter->state = POP(emitter, emitter->states);
+
+        return 1;
+    }
+
+    if (!yaml_emitter_write_indent(emitter))
+        return 0;
+
+    if (yaml_emitter_check_simple_key(emitter))
+    {
+        if (!PUSH(emitter, emitter->states,
+                    YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE))
+            return 0;
+
+        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1);
+    }
+    else
+    {
+        if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 1))
+            return 0;
+        if (!PUSH(emitter, emitter->states,
+                    YAML_EMIT_BLOCK_MAPPING_VALUE_STATE))
+            return 0;
+
+        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);
+    }
+}
+
+/*
+ * Expect a block value node.
+ */
+
+static int
+yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter,
+        yaml_event_t *event, int simple)
+{
+    if (simple) {
+        if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0))
+            return 0;
+    }
+    else {
+        if (!yaml_emitter_write_indent(emitter))
+            return 0;
+        if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 1))
+            return 0;
+    }
+    if (!PUSH(emitter, emitter->states,
+                YAML_EMIT_BLOCK_MAPPING_KEY_STATE))
+        return 0;
+
+    return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);
+}
+
+/*
+ * Expect a node.
+ */
+
+static int
+yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event,
+        int root, int sequence, int mapping, int simple_key)
+{
+    emitter->root_context = root;
+    emitter->sequence_context = sequence;
+    emitter->mapping_context = mapping;
+    emitter->simple_key_context = simple_key;
+
+    switch (event->type)
+    {
+        case YAML_ALIAS_EVENT:
+            return yaml_emitter_emit_alias(emitter, event);
+
+        case YAML_SCALAR_EVENT:
+            return yaml_emitter_emit_scalar(emitter, event);
+
+        case YAML_SEQUENCE_START_EVENT:
+            return yaml_emitter_emit_sequence_start(emitter, event);
+
+        case YAML_MAPPING_START_EVENT:
+            return yaml_emitter_emit_mapping_start(emitter, event);
+
+        default:
+            return yaml_emitter_set_emitter_error(emitter,
+                    "expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS");
+    }
+
+    return 0;
+}
+
+/*
+ * Expect ALIAS.
+ */
+
+static int
 yaml_emitter_emit_alias(yaml_emitter_t *emitter, SHIM(yaml_event_t *event))
-{ 
-    if (!yaml_emitter_process_anchor(emitter)) 
-        return 0; 
+{
+    if (!yaml_emitter_process_anchor(emitter))
+        return 0;
     if (emitter->simple_key_context)
         if (!PUT(emitter, ' ')) return 0;
-    emitter->state = POP(emitter, emitter->states); 
- 
-    return 1; 
-} 
- 
-/* 
- * Expect SCALAR. 
- */ 
- 
-static int 
-yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event) 
-{ 
-    if (!yaml_emitter_select_scalar_style(emitter, event)) 
-        return 0; 
-    if (!yaml_emitter_process_anchor(emitter)) 
-        return 0; 
-    if (!yaml_emitter_process_tag(emitter)) 
-        return 0; 
-    if (!yaml_emitter_increase_indent(emitter, 1, 0)) 
-        return 0; 
-    if (!yaml_emitter_process_scalar(emitter)) 
-        return 0; 
-    emitter->indent = POP(emitter, emitter->indents); 
-    emitter->state = POP(emitter, emitter->states); 
- 
-    return 1; 
-} 
- 
-/* 
- * Expect SEQUENCE-START. 
- */ 
- 
-static int 
-yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event) 
-{ 
-    if (!yaml_emitter_process_anchor(emitter)) 
-        return 0; 
-    if (!yaml_emitter_process_tag(emitter)) 
-        return 0; 
- 
-    if (emitter->flow_level || emitter->canonical 
-            || event->data.sequence_start.style == YAML_FLOW_SEQUENCE_STYLE 
-            || yaml_emitter_check_empty_sequence(emitter)) { 
-        emitter->state = YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE; 
-    } 
-    else { 
-        emitter->state = YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Expect MAPPING-START. 
- */ 
- 
-static int 
-yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event) 
-{ 
-    if (!yaml_emitter_process_anchor(emitter)) 
-        return 0; 
-    if (!yaml_emitter_process_tag(emitter)) 
-        return 0; 
- 
-    if (emitter->flow_level || emitter->canonical 
-            || event->data.mapping_start.style == YAML_FLOW_MAPPING_STYLE 
-            || yaml_emitter_check_empty_mapping(emitter)) { 
-        emitter->state = YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE; 
-    } 
-    else { 
-        emitter->state = YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if the document content is an empty scalar. 
- */ 
- 
-static int 
+    emitter->state = POP(emitter, emitter->states);
+
+    return 1;
+}
+
+/*
+ * Expect SCALAR.
+ */
+
+static int
+yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event)
+{
+    if (!yaml_emitter_select_scalar_style(emitter, event))
+        return 0;
+    if (!yaml_emitter_process_anchor(emitter))
+        return 0;
+    if (!yaml_emitter_process_tag(emitter))
+        return 0;
+    if (!yaml_emitter_increase_indent(emitter, 1, 0))
+        return 0;
+    if (!yaml_emitter_process_scalar(emitter))
+        return 0;
+    emitter->indent = POP(emitter, emitter->indents);
+    emitter->state = POP(emitter, emitter->states);
+
+    return 1;
+}
+
+/*
+ * Expect SEQUENCE-START.
+ */
+
+static int
+yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event)
+{
+    if (!yaml_emitter_process_anchor(emitter))
+        return 0;
+    if (!yaml_emitter_process_tag(emitter))
+        return 0;
+
+    if (emitter->flow_level || emitter->canonical
+            || event->data.sequence_start.style == YAML_FLOW_SEQUENCE_STYLE
+            || yaml_emitter_check_empty_sequence(emitter)) {
+        emitter->state = YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE;
+    }
+    else {
+        emitter->state = YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE;
+    }
+
+    return 1;
+}
+
+/*
+ * Expect MAPPING-START.
+ */
+
+static int
+yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event)
+{
+    if (!yaml_emitter_process_anchor(emitter))
+        return 0;
+    if (!yaml_emitter_process_tag(emitter))
+        return 0;
+
+    if (emitter->flow_level || emitter->canonical
+            || event->data.mapping_start.style == YAML_FLOW_MAPPING_STYLE
+            || yaml_emitter_check_empty_mapping(emitter)) {
+        emitter->state = YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE;
+    }
+    else {
+        emitter->state = YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE;
+    }
+
+    return 1;
+}
+
+/*
+ * Check if the document content is an empty scalar.
+ */
+
+static int
 yaml_emitter_check_empty_document(SHIM(yaml_emitter_t *emitter))
-{ 
-    return 0; 
-} 
- 
-/* 
- * Check if the next events represent an empty sequence. 
- */ 
- 
-static int 
-yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter) 
-{ 
-    if (emitter->events.tail - emitter->events.head < 2) 
-        return 0; 
- 
-    return (emitter->events.head[0].type == YAML_SEQUENCE_START_EVENT 
-            && emitter->events.head[1].type == YAML_SEQUENCE_END_EVENT); 
-} 
- 
-/* 
- * Check if the next events represent an empty mapping. 
- */ 
- 
-static int 
-yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter) 
-{ 
-    if (emitter->events.tail - emitter->events.head < 2) 
-        return 0; 
- 
-    return (emitter->events.head[0].type == YAML_MAPPING_START_EVENT 
-            && emitter->events.head[1].type == YAML_MAPPING_END_EVENT); 
-} 
- 
-/* 
- * Check if the next node can be expressed as a simple key. 
- */ 
- 
-static int 
-yaml_emitter_check_simple_key(yaml_emitter_t *emitter) 
-{ 
-    yaml_event_t *event = emitter->events.head; 
-    size_t length = 0; 
- 
-    switch (event->type) 
-    { 
-        case YAML_ALIAS_EVENT: 
-            length += emitter->anchor_data.anchor_length; 
-            break; 
- 
-        case YAML_SCALAR_EVENT: 
-            if (emitter->scalar_data.multiline) 
-                return 0; 
-            length += emitter->anchor_data.anchor_length 
-                + emitter->tag_data.handle_length 
-                + emitter->tag_data.suffix_length 
-                + emitter->scalar_data.length; 
-            break; 
- 
-        case YAML_SEQUENCE_START_EVENT: 
-            if (!yaml_emitter_check_empty_sequence(emitter)) 
-                return 0; 
-            length += emitter->anchor_data.anchor_length 
-                + emitter->tag_data.handle_length 
-                + emitter->tag_data.suffix_length; 
-            break; 
- 
-        case YAML_MAPPING_START_EVENT: 
-            if (!yaml_emitter_check_empty_mapping(emitter)) 
-                return 0; 
-            length += emitter->anchor_data.anchor_length 
-                + emitter->tag_data.handle_length 
-                + emitter->tag_data.suffix_length; 
-            break; 
- 
-        default: 
-            return 0; 
-    } 
- 
-    if (length > 128) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Determine an acceptable scalar style. 
- */ 
- 
-static int 
-yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event) 
-{ 
-    yaml_scalar_style_t style = event->data.scalar.style; 
-    int no_tag = (!emitter->tag_data.handle && !emitter->tag_data.suffix); 
- 
-    if (no_tag && !event->data.scalar.plain_implicit 
-            && !event->data.scalar.quoted_implicit) { 
-        return yaml_emitter_set_emitter_error(emitter, 
-                "neither tag nor implicit flags are specified"); 
-    } 
- 
-    if (style == YAML_ANY_SCALAR_STYLE) 
-        style = YAML_PLAIN_SCALAR_STYLE; 
- 
-    if (emitter->canonical) 
-        style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; 
- 
-    if (emitter->simple_key_context && emitter->scalar_data.multiline) 
-        style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; 
- 
-    if (style == YAML_PLAIN_SCALAR_STYLE) 
-    { 
-        if ((emitter->flow_level && !emitter->scalar_data.flow_plain_allowed) 
-                || (!emitter->flow_level && !emitter->scalar_data.block_plain_allowed)) 
-            style = YAML_SINGLE_QUOTED_SCALAR_STYLE; 
-        if (!emitter->scalar_data.length 
-                && (emitter->flow_level || emitter->simple_key_context)) 
-            style = YAML_SINGLE_QUOTED_SCALAR_STYLE; 
-        if (no_tag && !event->data.scalar.plain_implicit) 
-            style = YAML_SINGLE_QUOTED_SCALAR_STYLE; 
-    } 
- 
-    if (style == YAML_SINGLE_QUOTED_SCALAR_STYLE) 
-    { 
-        if (!emitter->scalar_data.single_quoted_allowed) 
-            style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; 
-    } 
- 
-    if (style == YAML_LITERAL_SCALAR_STYLE || style == YAML_FOLDED_SCALAR_STYLE) 
-    { 
-        if (!emitter->scalar_data.block_allowed 
-                || emitter->flow_level || emitter->simple_key_context) 
-            style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; 
-    } 
- 
-    if (no_tag && !event->data.scalar.quoted_implicit 
-            && style != YAML_PLAIN_SCALAR_STYLE) 
-    { 
-        emitter->tag_data.handle = (yaml_char_t *)"!"; 
-        emitter->tag_data.handle_length = 1; 
-    } 
- 
-    emitter->scalar_data.style = style; 
- 
-    return 1; 
-} 
- 
-/* 
+{
+    return 0;
+}
+
+/*
+ * Check if the next events represent an empty sequence.
+ */
+
+static int
+yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter)
+{
+    if (emitter->events.tail - emitter->events.head < 2)
+        return 0;
+
+    return (emitter->events.head[0].type == YAML_SEQUENCE_START_EVENT
+            && emitter->events.head[1].type == YAML_SEQUENCE_END_EVENT);
+}
+
+/*
+ * Check if the next events represent an empty mapping.
+ */
+
+static int
+yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter)
+{
+    if (emitter->events.tail - emitter->events.head < 2)
+        return 0;
+
+    return (emitter->events.head[0].type == YAML_MAPPING_START_EVENT
+            && emitter->events.head[1].type == YAML_MAPPING_END_EVENT);
+}
+
+/*
+ * Check if the next node can be expressed as a simple key.
+ */
+
+static int
+yaml_emitter_check_simple_key(yaml_emitter_t *emitter)
+{
+    yaml_event_t *event = emitter->events.head;
+    size_t length = 0;
+
+    switch (event->type)
+    {
+        case YAML_ALIAS_EVENT:
+            length += emitter->anchor_data.anchor_length;
+            break;
+
+        case YAML_SCALAR_EVENT:
+            if (emitter->scalar_data.multiline)
+                return 0;
+            length += emitter->anchor_data.anchor_length
+                + emitter->tag_data.handle_length
+                + emitter->tag_data.suffix_length
+                + emitter->scalar_data.length;
+            break;
+
+        case YAML_SEQUENCE_START_EVENT:
+            if (!yaml_emitter_check_empty_sequence(emitter))
+                return 0;
+            length += emitter->anchor_data.anchor_length
+                + emitter->tag_data.handle_length
+                + emitter->tag_data.suffix_length;
+            break;
+
+        case YAML_MAPPING_START_EVENT:
+            if (!yaml_emitter_check_empty_mapping(emitter))
+                return 0;
+            length += emitter->anchor_data.anchor_length
+                + emitter->tag_data.handle_length
+                + emitter->tag_data.suffix_length;
+            break;
+
+        default:
+            return 0;
+    }
+
+    if (length > 128)
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Determine an acceptable scalar style.
+ */
+
+static int
+yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event)
+{
+    yaml_scalar_style_t style = event->data.scalar.style;
+    int no_tag = (!emitter->tag_data.handle && !emitter->tag_data.suffix);
+
+    if (no_tag && !event->data.scalar.plain_implicit
+            && !event->data.scalar.quoted_implicit) {
+        return yaml_emitter_set_emitter_error(emitter,
+                "neither tag nor implicit flags are specified");
+    }
+
+    if (style == YAML_ANY_SCALAR_STYLE)
+        style = YAML_PLAIN_SCALAR_STYLE;
+
+    if (emitter->canonical)
+        style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;
+
+    if (emitter->simple_key_context && emitter->scalar_data.multiline)
+        style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;
+
+    if (style == YAML_PLAIN_SCALAR_STYLE)
+    {
+        if ((emitter->flow_level && !emitter->scalar_data.flow_plain_allowed)
+                || (!emitter->flow_level && !emitter->scalar_data.block_plain_allowed))
+            style = YAML_SINGLE_QUOTED_SCALAR_STYLE;
+        if (!emitter->scalar_data.length
+                && (emitter->flow_level || emitter->simple_key_context))
+            style = YAML_SINGLE_QUOTED_SCALAR_STYLE;
+        if (no_tag && !event->data.scalar.plain_implicit)
+            style = YAML_SINGLE_QUOTED_SCALAR_STYLE;
+    }
+
+    if (style == YAML_SINGLE_QUOTED_SCALAR_STYLE)
+    {
+        if (!emitter->scalar_data.single_quoted_allowed)
+            style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;
+    }
+
+    if (style == YAML_LITERAL_SCALAR_STYLE || style == YAML_FOLDED_SCALAR_STYLE)
+    {
+        if (!emitter->scalar_data.block_allowed
+                || emitter->flow_level || emitter->simple_key_context)
+            style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;
+    }
+
+    if (no_tag && !event->data.scalar.quoted_implicit
+            && style != YAML_PLAIN_SCALAR_STYLE)
+    {
+        emitter->tag_data.handle = (yaml_char_t *)"!";
+        emitter->tag_data.handle_length = 1;
+    }
+
+    emitter->scalar_data.style = style;
+
+    return 1;
+}
+
+/*
  * Write an anchor.
- */ 
- 
-static int 
-yaml_emitter_process_anchor(yaml_emitter_t *emitter) 
-{ 
-    if (!emitter->anchor_data.anchor) 
-        return 1; 
- 
-    if (!yaml_emitter_write_indicator(emitter, 
-                (emitter->anchor_data.alias ? "*" : "&"), 1, 0, 0)) 
-        return 0; 
- 
-    return yaml_emitter_write_anchor(emitter, 
-            emitter->anchor_data.anchor, emitter->anchor_data.anchor_length); 
-} 
- 
-/* 
- * Write a tag. 
- */ 
- 
-static int 
-yaml_emitter_process_tag(yaml_emitter_t *emitter) 
-{ 
-    if (!emitter->tag_data.handle && !emitter->tag_data.suffix) 
-        return 1; 
- 
-    if (emitter->tag_data.handle) 
-    { 
-        if (!yaml_emitter_write_tag_handle(emitter, emitter->tag_data.handle, 
-                    emitter->tag_data.handle_length)) 
-            return 0; 
-        if (emitter->tag_data.suffix) { 
-            if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, 
-                        emitter->tag_data.suffix_length, 0)) 
-                return 0; 
-        } 
-    } 
-    else 
-    { 
-        if (!yaml_emitter_write_indicator(emitter, "!<", 1, 0, 0)) 
-            return 0; 
-        if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, 
-                    emitter->tag_data.suffix_length, 0)) 
-            return 0; 
-        if (!yaml_emitter_write_indicator(emitter, ">", 0, 0, 0)) 
-            return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Write a scalar. 
- */ 
- 
-static int 
-yaml_emitter_process_scalar(yaml_emitter_t *emitter) 
-{ 
-    switch (emitter->scalar_data.style) 
-    { 
-        case YAML_PLAIN_SCALAR_STYLE: 
-            return yaml_emitter_write_plain_scalar(emitter, 
-                    emitter->scalar_data.value, emitter->scalar_data.length, 
-                    !emitter->simple_key_context); 
- 
-        case YAML_SINGLE_QUOTED_SCALAR_STYLE: 
-            return yaml_emitter_write_single_quoted_scalar(emitter, 
-                    emitter->scalar_data.value, emitter->scalar_data.length, 
-                    !emitter->simple_key_context); 
- 
-        case YAML_DOUBLE_QUOTED_SCALAR_STYLE: 
-            return yaml_emitter_write_double_quoted_scalar(emitter, 
-                    emitter->scalar_data.value, emitter->scalar_data.length, 
-                    !emitter->simple_key_context); 
- 
-        case YAML_LITERAL_SCALAR_STYLE: 
-            return yaml_emitter_write_literal_scalar(emitter, 
-                    emitter->scalar_data.value, emitter->scalar_data.length); 
- 
-        case YAML_FOLDED_SCALAR_STYLE: 
-            return yaml_emitter_write_folded_scalar(emitter, 
-                    emitter->scalar_data.value, emitter->scalar_data.length); 
- 
-        default: 
-            assert(1);      /* Impossible. */ 
-    } 
- 
-    return 0; 
-} 
- 
-/* 
- * Check if a %YAML directive is valid. 
- */ 
- 
-static int 
-yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, 
-        yaml_version_directive_t version_directive) 
-{ 
+ */
+
+static int
+yaml_emitter_process_anchor(yaml_emitter_t *emitter)
+{
+    if (!emitter->anchor_data.anchor)
+        return 1;
+
+    if (!yaml_emitter_write_indicator(emitter,
+                (emitter->anchor_data.alias ? "*" : "&"), 1, 0, 0))
+        return 0;
+
+    return yaml_emitter_write_anchor(emitter,
+            emitter->anchor_data.anchor, emitter->anchor_data.anchor_length);
+}
+
+/*
+ * Write a tag.
+ */
+
+static int
+yaml_emitter_process_tag(yaml_emitter_t *emitter)
+{
+    if (!emitter->tag_data.handle && !emitter->tag_data.suffix)
+        return 1;
+
+    if (emitter->tag_data.handle)
+    {
+        if (!yaml_emitter_write_tag_handle(emitter, emitter->tag_data.handle,
+                    emitter->tag_data.handle_length))
+            return 0;
+        if (emitter->tag_data.suffix) {
+            if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix,
+                        emitter->tag_data.suffix_length, 0))
+                return 0;
+        }
+    }
+    else
+    {
+        if (!yaml_emitter_write_indicator(emitter, "!<", 1, 0, 0))
+            return 0;
+        if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix,
+                    emitter->tag_data.suffix_length, 0))
+            return 0;
+        if (!yaml_emitter_write_indicator(emitter, ">", 0, 0, 0))
+            return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Write a scalar.
+ */
+
+static int
+yaml_emitter_process_scalar(yaml_emitter_t *emitter)
+{
+    switch (emitter->scalar_data.style)
+    {
+        case YAML_PLAIN_SCALAR_STYLE:
+            return yaml_emitter_write_plain_scalar(emitter,
+                    emitter->scalar_data.value, emitter->scalar_data.length,
+                    !emitter->simple_key_context);
+
+        case YAML_SINGLE_QUOTED_SCALAR_STYLE:
+            return yaml_emitter_write_single_quoted_scalar(emitter,
+                    emitter->scalar_data.value, emitter->scalar_data.length,
+                    !emitter->simple_key_context);
+
+        case YAML_DOUBLE_QUOTED_SCALAR_STYLE:
+            return yaml_emitter_write_double_quoted_scalar(emitter,
+                    emitter->scalar_data.value, emitter->scalar_data.length,
+                    !emitter->simple_key_context);
+
+        case YAML_LITERAL_SCALAR_STYLE:
+            return yaml_emitter_write_literal_scalar(emitter,
+                    emitter->scalar_data.value, emitter->scalar_data.length);
+
+        case YAML_FOLDED_SCALAR_STYLE:
+            return yaml_emitter_write_folded_scalar(emitter,
+                    emitter->scalar_data.value, emitter->scalar_data.length);
+
+        default:
+            assert(1);      /* Impossible. */
+    }
+
+    return 0;
+}
+
+/*
+ * Check if a %YAML directive is valid.
+ */
+
+static int
+yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter,
+        yaml_version_directive_t version_directive)
+{
     if (version_directive.major != 1 || (
         version_directive.minor != 1
         && version_directive.minor != 2
         )) {
-        return yaml_emitter_set_emitter_error(emitter, 
-                "incompatible %YAML directive"); 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if a %TAG directive is valid. 
- */ 
- 
-static int 
-yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, 
-        yaml_tag_directive_t tag_directive) 
-{ 
-    yaml_string_t handle; 
-    yaml_string_t prefix; 
-    size_t handle_length; 
-    size_t prefix_length; 
- 
-    handle_length = strlen((char *)tag_directive.handle); 
-    prefix_length = strlen((char *)tag_directive.prefix); 
-    STRING_ASSIGN(handle, tag_directive.handle, handle_length); 
-    STRING_ASSIGN(prefix, tag_directive.prefix, prefix_length); 
- 
-    if (handle.start == handle.end) { 
-        return yaml_emitter_set_emitter_error(emitter, 
-                "tag handle must not be empty"); 
-    } 
- 
-    if (handle.start[0] != '!') { 
-        return yaml_emitter_set_emitter_error(emitter, 
-                "tag handle must start with '!'"); 
-    } 
- 
-    if (handle.end[-1] != '!') { 
-        return yaml_emitter_set_emitter_error(emitter, 
-                "tag handle must end with '!'"); 
-    } 
- 
-    handle.pointer ++; 
- 
-    while (handle.pointer < handle.end-1) { 
-        if (!IS_ALPHA(handle)) { 
-            return yaml_emitter_set_emitter_error(emitter, 
-                    "tag handle must contain alphanumerical characters only"); 
-        } 
-        MOVE(handle); 
-    } 
- 
-    if (prefix.start == prefix.end) { 
-        return yaml_emitter_set_emitter_error(emitter, 
-                "tag prefix must not be empty"); 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if an anchor is valid. 
- */ 
- 
-static int 
-yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, 
-        yaml_char_t *anchor, int alias) 
-{ 
-    size_t anchor_length; 
-    yaml_string_t string; 
-
-    anchor_length = strlen((char *)anchor); 
-    STRING_ASSIGN(string, anchor, anchor_length); 
- 
-    if (string.start == string.end) { 
-        return yaml_emitter_set_emitter_error(emitter, alias ? 
-                "alias value must not be empty" : 
-                "anchor value must not be empty"); 
-    } 
- 
-    while (string.pointer != string.end) { 
-        if (!IS_ALPHA(string)) { 
-            return yaml_emitter_set_emitter_error(emitter, alias ? 
-                    "alias value must contain alphanumerical characters only" : 
-                    "anchor value must contain alphanumerical characters only"); 
-        } 
-        MOVE(string); 
-    } 
- 
-    emitter->anchor_data.anchor = string.start; 
-    emitter->anchor_data.anchor_length = string.end - string.start; 
-    emitter->anchor_data.alias = alias; 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if a tag is valid. 
- */ 
- 
-static int 
-yaml_emitter_analyze_tag(yaml_emitter_t *emitter, 
-        yaml_char_t *tag) 
-{ 
-    size_t tag_length; 
-    yaml_string_t string; 
-    yaml_tag_directive_t *tag_directive; 
- 
-    tag_length = strlen((char *)tag); 
-    STRING_ASSIGN(string, tag, tag_length); 
- 
-    if (string.start == string.end) { 
-        return yaml_emitter_set_emitter_error(emitter, 
-                "tag value must not be empty"); 
-    } 
- 
-    for (tag_directive = emitter->tag_directives.start; 
-            tag_directive != emitter->tag_directives.top; tag_directive ++) { 
-        size_t prefix_length = strlen((char *)tag_directive->prefix); 
-        if (prefix_length < (size_t)(string.end - string.start) 
-                && strncmp((char *)tag_directive->prefix, (char *)string.start, 
-                    prefix_length) == 0) 
-        { 
-            emitter->tag_data.handle = tag_directive->handle; 
-            emitter->tag_data.handle_length = 
-                strlen((char *)tag_directive->handle); 
-            emitter->tag_data.suffix = string.start + prefix_length; 
-            emitter->tag_data.suffix_length = 
-                (string.end - string.start) - prefix_length; 
-            return 1; 
-        } 
-    } 
- 
-    emitter->tag_data.suffix = string.start; 
-    emitter->tag_data.suffix_length = string.end - string.start; 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if a scalar is valid. 
- */ 
- 
-static int 
-yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length) 
-{ 
-    yaml_string_t string; 
- 
-    int block_indicators = 0; 
-    int flow_indicators = 0; 
-    int line_breaks = 0; 
-    int special_characters = 0; 
- 
-    int leading_space = 0; 
-    int leading_break = 0; 
-    int trailing_space = 0; 
-    int trailing_break = 0; 
-    int break_space = 0; 
-    int space_break = 0; 
- 
+        return yaml_emitter_set_emitter_error(emitter,
+                "incompatible %YAML directive");
+    }
+
+    return 1;
+}
+
+/*
+ * Check if a %TAG directive is valid.
+ */
+
+static int
+yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter,
+        yaml_tag_directive_t tag_directive)
+{
+    yaml_string_t handle;
+    yaml_string_t prefix;
+    size_t handle_length;
+    size_t prefix_length;
+
+    handle_length = strlen((char *)tag_directive.handle);
+    prefix_length = strlen((char *)tag_directive.prefix);
+    STRING_ASSIGN(handle, tag_directive.handle, handle_length);
+    STRING_ASSIGN(prefix, tag_directive.prefix, prefix_length);
+
+    if (handle.start == handle.end) {
+        return yaml_emitter_set_emitter_error(emitter,
+                "tag handle must not be empty");
+    }
+
+    if (handle.start[0] != '!') {
+        return yaml_emitter_set_emitter_error(emitter,
+                "tag handle must start with '!'");
+    }
+
+    if (handle.end[-1] != '!') {
+        return yaml_emitter_set_emitter_error(emitter,
+                "tag handle must end with '!'");
+    }
+
+    handle.pointer ++;
+
+    while (handle.pointer < handle.end-1) {
+        if (!IS_ALPHA(handle)) {
+            return yaml_emitter_set_emitter_error(emitter,
+                    "tag handle must contain alphanumerical characters only");
+        }
+        MOVE(handle);
+    }
+
+    if (prefix.start == prefix.end) {
+        return yaml_emitter_set_emitter_error(emitter,
+                "tag prefix must not be empty");
+    }
+
+    return 1;
+}
+
+/*
+ * Check if an anchor is valid.
+ */
+
+static int
+yaml_emitter_analyze_anchor(yaml_emitter_t *emitter,
+        yaml_char_t *anchor, int alias)
+{
+    size_t anchor_length;
+    yaml_string_t string;
+
+    anchor_length = strlen((char *)anchor);
+    STRING_ASSIGN(string, anchor, anchor_length);
+
+    if (string.start == string.end) {
+        return yaml_emitter_set_emitter_error(emitter, alias ?
+                "alias value must not be empty" :
+                "anchor value must not be empty");
+    }
+
+    while (string.pointer != string.end) {
+        if (!IS_ALPHA(string)) {
+            return yaml_emitter_set_emitter_error(emitter, alias ?
+                    "alias value must contain alphanumerical characters only" :
+                    "anchor value must contain alphanumerical characters only");
+        }
+        MOVE(string);
+    }
+
+    emitter->anchor_data.anchor = string.start;
+    emitter->anchor_data.anchor_length = string.end - string.start;
+    emitter->anchor_data.alias = alias;
+
+    return 1;
+}
+
+/*
+ * Check if a tag is valid.
+ */
+
+static int
+yaml_emitter_analyze_tag(yaml_emitter_t *emitter,
+        yaml_char_t *tag)
+{
+    size_t tag_length;
+    yaml_string_t string;
+    yaml_tag_directive_t *tag_directive;
+
+    tag_length = strlen((char *)tag);
+    STRING_ASSIGN(string, tag, tag_length);
+
+    if (string.start == string.end) {
+        return yaml_emitter_set_emitter_error(emitter,
+                "tag value must not be empty");
+    }
+
+    for (tag_directive = emitter->tag_directives.start;
+            tag_directive != emitter->tag_directives.top; tag_directive ++) {
+        size_t prefix_length = strlen((char *)tag_directive->prefix);
+        if (prefix_length < (size_t)(string.end - string.start)
+                && strncmp((char *)tag_directive->prefix, (char *)string.start,
+                    prefix_length) == 0)
+        {
+            emitter->tag_data.handle = tag_directive->handle;
+            emitter->tag_data.handle_length =
+                strlen((char *)tag_directive->handle);
+            emitter->tag_data.suffix = string.start + prefix_length;
+            emitter->tag_data.suffix_length =
+                (string.end - string.start) - prefix_length;
+            return 1;
+        }
+    }
+
+    emitter->tag_data.suffix = string.start;
+    emitter->tag_data.suffix_length = string.end - string.start;
+
+    return 1;
+}
+
+/*
+ * Check if a scalar is valid.
+ */
+
+static int
+yaml_emitter_analyze_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length)
+{
+    yaml_string_t string;
+
+    int block_indicators = 0;
+    int flow_indicators = 0;
+    int line_breaks = 0;
+    int special_characters = 0;
+
+    int leading_space = 0;
+    int leading_break = 0;
+    int trailing_space = 0;
+    int trailing_break = 0;
+    int break_space = 0;
+    int space_break = 0;
+
     int preceded_by_whitespace = 0;
-    int followed_by_whitespace = 0; 
-    int previous_space = 0; 
-    int previous_break = 0; 
- 
-    STRING_ASSIGN(string, value, length); 
- 
-    emitter->scalar_data.value = value; 
-    emitter->scalar_data.length = length; 
- 
-    if (string.start == string.end) 
-    { 
-        emitter->scalar_data.multiline = 0; 
-        emitter->scalar_data.flow_plain_allowed = 0; 
-        emitter->scalar_data.block_plain_allowed = 1; 
-        emitter->scalar_data.single_quoted_allowed = 1; 
-        emitter->scalar_data.block_allowed = 0; 
- 
-        return 1; 
-    } 
- 
-    if ((CHECK_AT(string, '-', 0) 
-                && CHECK_AT(string, '-', 1) 
-                && CHECK_AT(string, '-', 2)) 
-            || (CHECK_AT(string, '.', 0) 
-                && CHECK_AT(string, '.', 1) 
-                && CHECK_AT(string, '.', 2))) { 
-        block_indicators = 1; 
-        flow_indicators = 1; 
-    } 
- 
+    int followed_by_whitespace = 0;
+    int previous_space = 0;
+    int previous_break = 0;
+
+    STRING_ASSIGN(string, value, length);
+
+    emitter->scalar_data.value = value;
+    emitter->scalar_data.length = length;
+
+    if (string.start == string.end)
+    {
+        emitter->scalar_data.multiline = 0;
+        emitter->scalar_data.flow_plain_allowed = 0;
+        emitter->scalar_data.block_plain_allowed = 1;
+        emitter->scalar_data.single_quoted_allowed = 1;
+        emitter->scalar_data.block_allowed = 0;
+
+        return 1;
+    }
+
+    if ((CHECK_AT(string, '-', 0)
+                && CHECK_AT(string, '-', 1)
+                && CHECK_AT(string, '-', 2))
+            || (CHECK_AT(string, '.', 0)
+                && CHECK_AT(string, '.', 1)
+                && CHECK_AT(string, '.', 2))) {
+        block_indicators = 1;
+        flow_indicators = 1;
+    }
+
     preceded_by_whitespace = 1;
-    followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string)); 
- 
-    while (string.pointer != string.end) 
-    { 
-        if (string.start == string.pointer) 
-        { 
-            if (CHECK(string, '#') || CHECK(string, ',') 
-                    || CHECK(string, '[') || CHECK(string, ']') 
-                    || CHECK(string, '{') || CHECK(string, '}') 
-                    || CHECK(string, '&') || CHECK(string, '*') 
-                    || CHECK(string, '!') || CHECK(string, '|') 
-                    || CHECK(string, '>') || CHECK(string, '\'') 
-                    || CHECK(string, '"') || CHECK(string, '%') 
-                    || CHECK(string, '@') || CHECK(string, '`')) { 
-                flow_indicators = 1; 
-                block_indicators = 1; 
-            } 
- 
-            if (CHECK(string, '?') || CHECK(string, ':')) { 
-                flow_indicators = 1; 
-                if (followed_by_whitespace) { 
-                    block_indicators = 1; 
-                } 
-            } 
- 
-            if (CHECK(string, '-') && followed_by_whitespace) { 
-                flow_indicators = 1; 
-                block_indicators = 1; 
-            } 
-        } 
-        else 
-        { 
-            if (CHECK(string, ',') || CHECK(string, '?') 
-                    || CHECK(string, '[') || CHECK(string, ']') 
-                    || CHECK(string, '{') || CHECK(string, '}')) { 
-                flow_indicators = 1; 
-            } 
- 
-            if (CHECK(string, ':')) { 
-                flow_indicators = 1; 
-                if (followed_by_whitespace) { 
-                    block_indicators = 1; 
-                } 
-            } 
- 
+    followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string));
+
+    while (string.pointer != string.end)
+    {
+        if (string.start == string.pointer)
+        {
+            if (CHECK(string, '#') || CHECK(string, ',')
+                    || CHECK(string, '[') || CHECK(string, ']')
+                    || CHECK(string, '{') || CHECK(string, '}')
+                    || CHECK(string, '&') || CHECK(string, '*')
+                    || CHECK(string, '!') || CHECK(string, '|')
+                    || CHECK(string, '>') || CHECK(string, '\'')
+                    || CHECK(string, '"') || CHECK(string, '%')
+                    || CHECK(string, '@') || CHECK(string, '`')) {
+                flow_indicators = 1;
+                block_indicators = 1;
+            }
+
+            if (CHECK(string, '?') || CHECK(string, ':')) {
+                flow_indicators = 1;
+                if (followed_by_whitespace) {
+                    block_indicators = 1;
+                }
+            }
+
+            if (CHECK(string, '-') && followed_by_whitespace) {
+                flow_indicators = 1;
+                block_indicators = 1;
+            }
+        }
+        else
+        {
+            if (CHECK(string, ',') || CHECK(string, '?')
+                    || CHECK(string, '[') || CHECK(string, ']')
+                    || CHECK(string, '{') || CHECK(string, '}')) {
+                flow_indicators = 1;
+            }
+
+            if (CHECK(string, ':')) {
+                flow_indicators = 1;
+                if (followed_by_whitespace) {
+                    block_indicators = 1;
+                }
+            }
+
             if (CHECK(string, '#') && preceded_by_whitespace) {
-                flow_indicators = 1; 
-                block_indicators = 1; 
-            } 
-        } 
- 
-        if (!IS_PRINTABLE(string) 
-                || (!IS_ASCII(string) && !emitter->unicode)) { 
-            special_characters = 1; 
-        } 
- 
-        if (IS_BREAK(string)) { 
-            line_breaks = 1; 
-        } 
- 
-        if (IS_SPACE(string)) 
-        { 
-            if (string.start == string.pointer) { 
-                leading_space = 1; 
-            } 
-            if (string.pointer+WIDTH(string) == string.end) { 
-                trailing_space = 1; 
-            } 
-            if (previous_break) { 
-                break_space = 1; 
-            } 
-            previous_space = 1; 
-            previous_break = 0; 
-        } 
-        else if (IS_BREAK(string)) 
-        { 
-            if (string.start == string.pointer) { 
-                leading_break = 1; 
-            } 
-            if (string.pointer+WIDTH(string) == string.end) { 
-                trailing_break = 1; 
-            } 
-            if (previous_space) { 
-                space_break = 1; 
-            } 
-            previous_space = 0; 
-            previous_break = 1; 
-        } 
-        else 
-        { 
-            previous_space = 0; 
-            previous_break = 0; 
-        } 
- 
+                flow_indicators = 1;
+                block_indicators = 1;
+            }
+        }
+
+        if (!IS_PRINTABLE(string)
+                || (!IS_ASCII(string) && !emitter->unicode)) {
+            special_characters = 1;
+        }
+
+        if (IS_BREAK(string)) {
+            line_breaks = 1;
+        }
+
+        if (IS_SPACE(string))
+        {
+            if (string.start == string.pointer) {
+                leading_space = 1;
+            }
+            if (string.pointer+WIDTH(string) == string.end) {
+                trailing_space = 1;
+            }
+            if (previous_break) {
+                break_space = 1;
+            }
+            previous_space = 1;
+            previous_break = 0;
+        }
+        else if (IS_BREAK(string))
+        {
+            if (string.start == string.pointer) {
+                leading_break = 1;
+            }
+            if (string.pointer+WIDTH(string) == string.end) {
+                trailing_break = 1;
+            }
+            if (previous_space) {
+                space_break = 1;
+            }
+            previous_space = 0;
+            previous_break = 1;
+        }
+        else
+        {
+            previous_space = 0;
+            previous_break = 0;
+        }
+
         preceded_by_whitespace = IS_BLANKZ(string);
-        MOVE(string); 
-        if (string.pointer != string.end) { 
-            followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string)); 
-        } 
-    } 
- 
-    emitter->scalar_data.multiline = line_breaks; 
- 
-    emitter->scalar_data.flow_plain_allowed = 1; 
-    emitter->scalar_data.block_plain_allowed = 1; 
-    emitter->scalar_data.single_quoted_allowed = 1; 
-    emitter->scalar_data.block_allowed = 1; 
- 
-    if (leading_space || leading_break || trailing_space || trailing_break) { 
-        emitter->scalar_data.flow_plain_allowed = 0; 
-        emitter->scalar_data.block_plain_allowed = 0; 
-    } 
- 
-    if (trailing_space) { 
-        emitter->scalar_data.block_allowed = 0; 
-    } 
- 
-    if (break_space) { 
-        emitter->scalar_data.flow_plain_allowed = 0; 
-        emitter->scalar_data.block_plain_allowed = 0; 
-        emitter->scalar_data.single_quoted_allowed = 0; 
-    } 
- 
-    if (space_break || special_characters) { 
-        emitter->scalar_data.flow_plain_allowed = 0; 
-        emitter->scalar_data.block_plain_allowed = 0; 
-        emitter->scalar_data.single_quoted_allowed = 0; 
-        emitter->scalar_data.block_allowed = 0; 
-    } 
- 
-    if (line_breaks) { 
-        emitter->scalar_data.flow_plain_allowed = 0; 
-        emitter->scalar_data.block_plain_allowed = 0; 
-    } 
- 
-    if (flow_indicators) { 
-        emitter->scalar_data.flow_plain_allowed = 0; 
-    } 
- 
-    if (block_indicators) { 
-        emitter->scalar_data.block_plain_allowed = 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if the event data is valid. 
- */ 
- 
-static int 
-yaml_emitter_analyze_event(yaml_emitter_t *emitter, 
-        yaml_event_t *event) 
-{ 
-    emitter->anchor_data.anchor = NULL; 
-    emitter->anchor_data.anchor_length = 0; 
-    emitter->tag_data.handle = NULL; 
-    emitter->tag_data.handle_length = 0; 
-    emitter->tag_data.suffix = NULL; 
-    emitter->tag_data.suffix_length = 0; 
-    emitter->scalar_data.value = NULL; 
-    emitter->scalar_data.length = 0; 
- 
-    switch (event->type) 
-    { 
-        case YAML_ALIAS_EVENT: 
-            if (!yaml_emitter_analyze_anchor(emitter, 
-                        event->data.alias.anchor, 1)) 
-                return 0; 
-            return 1; 
- 
-        case YAML_SCALAR_EVENT: 
-            if (event->data.scalar.anchor) { 
-                if (!yaml_emitter_analyze_anchor(emitter, 
-                            event->data.scalar.anchor, 0)) 
-                    return 0; 
-            } 
-            if (event->data.scalar.tag && (emitter->canonical || 
-                        (!event->data.scalar.plain_implicit 
-                         && !event->data.scalar.quoted_implicit))) { 
-                if (!yaml_emitter_analyze_tag(emitter, event->data.scalar.tag)) 
-                    return 0; 
-            } 
-            if (!yaml_emitter_analyze_scalar(emitter, 
-                        event->data.scalar.value, event->data.scalar.length)) 
-                return 0; 
-            return 1; 
- 
-        case YAML_SEQUENCE_START_EVENT: 
-            if (event->data.sequence_start.anchor) { 
-                if (!yaml_emitter_analyze_anchor(emitter, 
-                            event->data.sequence_start.anchor, 0)) 
-                    return 0; 
-            } 
-            if (event->data.sequence_start.tag && (emitter->canonical || 
-                        !event->data.sequence_start.implicit)) { 
-                if (!yaml_emitter_analyze_tag(emitter, 
-                            event->data.sequence_start.tag)) 
-                    return 0; 
-            } 
-            return 1; 
- 
-        case YAML_MAPPING_START_EVENT: 
-            if (event->data.mapping_start.anchor) { 
-                if (!yaml_emitter_analyze_anchor(emitter, 
-                            event->data.mapping_start.anchor, 0)) 
-                    return 0; 
-            } 
-            if (event->data.mapping_start.tag && (emitter->canonical || 
-                        !event->data.mapping_start.implicit)) { 
-                if (!yaml_emitter_analyze_tag(emitter, 
-                            event->data.mapping_start.tag)) 
-                    return 0; 
-            } 
-            return 1; 
- 
-        default: 
-            return 1; 
-    } 
-} 
- 
-/* 
- * Write the BOM character. 
- */ 
- 
-static int 
-yaml_emitter_write_bom(yaml_emitter_t *emitter) 
-{ 
-    if (!FLUSH(emitter)) return 0; 
- 
-    *(emitter->buffer.pointer++) = (yaml_char_t) '\xEF'; 
-    *(emitter->buffer.pointer++) = (yaml_char_t) '\xBB'; 
-    *(emitter->buffer.pointer++) = (yaml_char_t) '\xBF'; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_indent(yaml_emitter_t *emitter) 
-{ 
-    int indent = (emitter->indent >= 0) ? emitter->indent : 0; 
- 
-    if (!emitter->indention || emitter->column > indent 
-            || (emitter->column == indent && !emitter->whitespace)) { 
-        if (!PUT_BREAK(emitter)) return 0; 
-    } 
- 
-    while (emitter->column < indent) { 
-        if (!PUT(emitter, ' ')) return 0; 
-    } 
- 
-    emitter->whitespace = 1; 
-    emitter->indention = 1; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_indicator(yaml_emitter_t *emitter, 
+        MOVE(string);
+        if (string.pointer != string.end) {
+            followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string));
+        }
+    }
+
+    emitter->scalar_data.multiline = line_breaks;
+
+    emitter->scalar_data.flow_plain_allowed = 1;
+    emitter->scalar_data.block_plain_allowed = 1;
+    emitter->scalar_data.single_quoted_allowed = 1;
+    emitter->scalar_data.block_allowed = 1;
+
+    if (leading_space || leading_break || trailing_space || trailing_break) {
+        emitter->scalar_data.flow_plain_allowed = 0;
+        emitter->scalar_data.block_plain_allowed = 0;
+    }
+
+    if (trailing_space) {
+        emitter->scalar_data.block_allowed = 0;
+    }
+
+    if (break_space) {
+        emitter->scalar_data.flow_plain_allowed = 0;
+        emitter->scalar_data.block_plain_allowed = 0;
+        emitter->scalar_data.single_quoted_allowed = 0;
+    }
+
+    if (space_break || special_characters) {
+        emitter->scalar_data.flow_plain_allowed = 0;
+        emitter->scalar_data.block_plain_allowed = 0;
+        emitter->scalar_data.single_quoted_allowed = 0;
+        emitter->scalar_data.block_allowed = 0;
+    }
+
+    if (line_breaks) {
+        emitter->scalar_data.flow_plain_allowed = 0;
+        emitter->scalar_data.block_plain_allowed = 0;
+    }
+
+    if (flow_indicators) {
+        emitter->scalar_data.flow_plain_allowed = 0;
+    }
+
+    if (block_indicators) {
+        emitter->scalar_data.block_plain_allowed = 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Check if the event data is valid.
+ */
+
+static int
+yaml_emitter_analyze_event(yaml_emitter_t *emitter,
+        yaml_event_t *event)
+{
+    emitter->anchor_data.anchor = NULL;
+    emitter->anchor_data.anchor_length = 0;
+    emitter->tag_data.handle = NULL;
+    emitter->tag_data.handle_length = 0;
+    emitter->tag_data.suffix = NULL;
+    emitter->tag_data.suffix_length = 0;
+    emitter->scalar_data.value = NULL;
+    emitter->scalar_data.length = 0;
+
+    switch (event->type)
+    {
+        case YAML_ALIAS_EVENT:
+            if (!yaml_emitter_analyze_anchor(emitter,
+                        event->data.alias.anchor, 1))
+                return 0;
+            return 1;
+
+        case YAML_SCALAR_EVENT:
+            if (event->data.scalar.anchor) {
+                if (!yaml_emitter_analyze_anchor(emitter,
+                            event->data.scalar.anchor, 0))
+                    return 0;
+            }
+            if (event->data.scalar.tag && (emitter->canonical ||
+                        (!event->data.scalar.plain_implicit
+                         && !event->data.scalar.quoted_implicit))) {
+                if (!yaml_emitter_analyze_tag(emitter, event->data.scalar.tag))
+                    return 0;
+            }
+            if (!yaml_emitter_analyze_scalar(emitter,
+                        event->data.scalar.value, event->data.scalar.length))
+                return 0;
+            return 1;
+
+        case YAML_SEQUENCE_START_EVENT:
+            if (event->data.sequence_start.anchor) {
+                if (!yaml_emitter_analyze_anchor(emitter,
+                            event->data.sequence_start.anchor, 0))
+                    return 0;
+            }
+            if (event->data.sequence_start.tag && (emitter->canonical ||
+                        !event->data.sequence_start.implicit)) {
+                if (!yaml_emitter_analyze_tag(emitter,
+                            event->data.sequence_start.tag))
+                    return 0;
+            }
+            return 1;
+
+        case YAML_MAPPING_START_EVENT:
+            if (event->data.mapping_start.anchor) {
+                if (!yaml_emitter_analyze_anchor(emitter,
+                            event->data.mapping_start.anchor, 0))
+                    return 0;
+            }
+            if (event->data.mapping_start.tag && (emitter->canonical ||
+                        !event->data.mapping_start.implicit)) {
+                if (!yaml_emitter_analyze_tag(emitter,
+                            event->data.mapping_start.tag))
+                    return 0;
+            }
+            return 1;
+
+        default:
+            return 1;
+    }
+}
+
+/*
+ * Write the BOM character.
+ */
+
+static int
+yaml_emitter_write_bom(yaml_emitter_t *emitter)
+{
+    if (!FLUSH(emitter)) return 0;
+
+    *(emitter->buffer.pointer++) = (yaml_char_t) '\xEF';
+    *(emitter->buffer.pointer++) = (yaml_char_t) '\xBB';
+    *(emitter->buffer.pointer++) = (yaml_char_t) '\xBF';
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_indent(yaml_emitter_t *emitter)
+{
+    int indent = (emitter->indent >= 0) ? emitter->indent : 0;
+
+    if (!emitter->indention || emitter->column > indent
+            || (emitter->column == indent && !emitter->whitespace)) {
+        if (!PUT_BREAK(emitter)) return 0;
+    }
+
+    while (emitter->column < indent) {
+        if (!PUT(emitter, ' ')) return 0;
+    }
+
+    emitter->whitespace = 1;
+    emitter->indention = 1;
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_indicator(yaml_emitter_t *emitter,
         const char *indicator, int need_whitespace,
-        int is_whitespace, int is_indention) 
-{ 
-    size_t indicator_length; 
-    yaml_string_t string; 
- 
-    indicator_length = strlen(indicator); 
-    STRING_ASSIGN(string, (yaml_char_t *)indicator, indicator_length); 
- 
-    if (need_whitespace && !emitter->whitespace) { 
-        if (!PUT(emitter, ' ')) return 0; 
-    } 
- 
-    while (string.pointer != string.end) { 
-        if (!WRITE(emitter, string)) return 0; 
-    } 
- 
-    emitter->whitespace = is_whitespace; 
-    emitter->indention = (emitter->indention && is_indention); 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_anchor(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length) 
-{ 
-    yaml_string_t string; 
-    STRING_ASSIGN(string, value, length); 
- 
-    while (string.pointer != string.end) { 
-        if (!WRITE(emitter, string)) return 0; 
-    } 
- 
-    emitter->whitespace = 0; 
-    emitter->indention = 0; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length) 
-{ 
-    yaml_string_t string; 
-    STRING_ASSIGN(string, value, length); 
- 
-    if (!emitter->whitespace) { 
-        if (!PUT(emitter, ' ')) return 0; 
-    } 
- 
-    while (string.pointer != string.end) { 
-        if (!WRITE(emitter, string)) return 0; 
-    } 
- 
-    emitter->whitespace = 0; 
-    emitter->indention = 0; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_tag_content(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, 
-        int need_whitespace) 
-{ 
-    yaml_string_t string; 
-    STRING_ASSIGN(string, value, length); 
- 
-    if (need_whitespace && !emitter->whitespace) { 
-        if (!PUT(emitter, ' ')) return 0; 
-    } 
- 
-    while (string.pointer != string.end) { 
-        if (IS_ALPHA(string) 
-                || CHECK(string, ';') || CHECK(string, '/') 
-                || CHECK(string, '?') || CHECK(string, ':') 
-                || CHECK(string, '@') || CHECK(string, '&') 
-                || CHECK(string, '=') || CHECK(string, '+') 
-                || CHECK(string, '$') || CHECK(string, ',') 
-                || CHECK(string, '_') || CHECK(string, '.') 
-                || CHECK(string, '~') || CHECK(string, '*') 
-                || CHECK(string, '\'') || CHECK(string, '(') 
-                || CHECK(string, ')') || CHECK(string, '[') 
-                || CHECK(string, ']')) { 
-            if (!WRITE(emitter, string)) return 0; 
-        } 
-        else { 
-            int width = WIDTH(string); 
-            unsigned int value; 
-            while (width --) { 
-                value = *(string.pointer++); 
-                if (!PUT(emitter, '%')) return 0; 
-                if (!PUT(emitter, (value >> 4) 
-                            + ((value >> 4) < 10 ? '0' : 'A' - 10))) 
-                    return 0; 
-                if (!PUT(emitter, (value & 0x0F) 
-                            + ((value & 0x0F) < 10 ? '0' : 'A' - 10))) 
-                    return 0; 
-            } 
-        } 
-    } 
- 
-    emitter->whitespace = 0; 
-    emitter->indention = 0; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, int allow_breaks) 
-{ 
-    yaml_string_t string; 
-    int spaces = 0; 
-    int breaks = 0; 
- 
-    STRING_ASSIGN(string, value, length); 
- 
+        int is_whitespace, int is_indention)
+{
+    size_t indicator_length;
+    yaml_string_t string;
+
+    indicator_length = strlen(indicator);
+    STRING_ASSIGN(string, (yaml_char_t *)indicator, indicator_length);
+
+    if (need_whitespace && !emitter->whitespace) {
+        if (!PUT(emitter, ' ')) return 0;
+    }
+
+    while (string.pointer != string.end) {
+        if (!WRITE(emitter, string)) return 0;
+    }
+
+    emitter->whitespace = is_whitespace;
+    emitter->indention = (emitter->indention && is_indention);
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_anchor(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length)
+{
+    yaml_string_t string;
+    STRING_ASSIGN(string, value, length);
+
+    while (string.pointer != string.end) {
+        if (!WRITE(emitter, string)) return 0;
+    }
+
+    emitter->whitespace = 0;
+    emitter->indention = 0;
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_tag_handle(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length)
+{
+    yaml_string_t string;
+    STRING_ASSIGN(string, value, length);
+
+    if (!emitter->whitespace) {
+        if (!PUT(emitter, ' ')) return 0;
+    }
+
+    while (string.pointer != string.end) {
+        if (!WRITE(emitter, string)) return 0;
+    }
+
+    emitter->whitespace = 0;
+    emitter->indention = 0;
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_tag_content(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length,
+        int need_whitespace)
+{
+    yaml_string_t string;
+    STRING_ASSIGN(string, value, length);
+
+    if (need_whitespace && !emitter->whitespace) {
+        if (!PUT(emitter, ' ')) return 0;
+    }
+
+    while (string.pointer != string.end) {
+        if (IS_ALPHA(string)
+                || CHECK(string, ';') || CHECK(string, '/')
+                || CHECK(string, '?') || CHECK(string, ':')
+                || CHECK(string, '@') || CHECK(string, '&')
+                || CHECK(string, '=') || CHECK(string, '+')
+                || CHECK(string, '$') || CHECK(string, ',')
+                || CHECK(string, '_') || CHECK(string, '.')
+                || CHECK(string, '~') || CHECK(string, '*')
+                || CHECK(string, '\'') || CHECK(string, '(')
+                || CHECK(string, ')') || CHECK(string, '[')
+                || CHECK(string, ']')) {
+            if (!WRITE(emitter, string)) return 0;
+        }
+        else {
+            int width = WIDTH(string);
+            unsigned int value;
+            while (width --) {
+                value = *(string.pointer++);
+                if (!PUT(emitter, '%')) return 0;
+                if (!PUT(emitter, (value >> 4)
+                            + ((value >> 4) < 10 ? '0' : 'A' - 10)))
+                    return 0;
+                if (!PUT(emitter, (value & 0x0F)
+                            + ((value & 0x0F) < 10 ? '0' : 'A' - 10)))
+                    return 0;
+            }
+        }
+    }
+
+    emitter->whitespace = 0;
+    emitter->indention = 0;
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length, int allow_breaks)
+{
+    yaml_string_t string;
+    int spaces = 0;
+    int breaks = 0;
+
+    STRING_ASSIGN(string, value, length);
+
     /**
      * Avoid trailing spaces for empty values in block mode.
      * In flow mode, we still want the space to prevent ambiguous things
@@ -1936,423 +1936,423 @@ yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter,
      * the check for flow_level is already here.
      */
     if (!emitter->whitespace && (length || emitter->flow_level)) {
-        if (!PUT(emitter, ' ')) return 0; 
-    } 
- 
-    while (string.pointer != string.end) 
-    { 
-        if (IS_SPACE(string)) 
-        { 
-            if (allow_breaks && !spaces 
-                    && emitter->column > emitter->best_width 
-                    && !IS_SPACE_AT(string, 1)) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-                MOVE(string); 
-            } 
-            else { 
-                if (!WRITE(emitter, string)) return 0; 
-            } 
-            spaces = 1; 
-        } 
-        else if (IS_BREAK(string)) 
-        { 
-            if (!breaks && CHECK(string, '\n')) { 
-                if (!PUT_BREAK(emitter)) return 0; 
-            } 
-            if (!WRITE_BREAK(emitter, string)) return 0; 
-            emitter->indention = 1; 
-            breaks = 1; 
-        } 
-        else 
-        { 
-            if (breaks) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-            } 
-            if (!WRITE(emitter, string)) return 0; 
-            emitter->indention = 0; 
-            spaces = 0; 
-            breaks = 0; 
-        } 
-    } 
- 
-    emitter->whitespace = 0; 
-    emitter->indention = 0; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, int allow_breaks) 
-{ 
-    yaml_string_t string; 
-    int spaces = 0; 
-    int breaks = 0; 
- 
-    STRING_ASSIGN(string, value, length); 
- 
-    if (!yaml_emitter_write_indicator(emitter, "'", 1, 0, 0)) 
-        return 0; 
- 
-    while (string.pointer != string.end) 
-    { 
-        if (IS_SPACE(string)) 
-        { 
-            if (allow_breaks && !spaces 
-                    && emitter->column > emitter->best_width 
-                    && string.pointer != string.start 
-                    && string.pointer != string.end - 1 
-                    && !IS_SPACE_AT(string, 1)) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-                MOVE(string); 
-            } 
-            else { 
-                if (!WRITE(emitter, string)) return 0; 
-            } 
-            spaces = 1; 
-        } 
-        else if (IS_BREAK(string)) 
-        { 
-            if (!breaks && CHECK(string, '\n')) { 
-                if (!PUT_BREAK(emitter)) return 0; 
-            } 
-            if (!WRITE_BREAK(emitter, string)) return 0; 
-            emitter->indention = 1; 
-            breaks = 1; 
-        } 
-        else 
-        { 
-            if (breaks) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-            } 
-            if (CHECK(string, '\'')) { 
-                if (!PUT(emitter, '\'')) return 0; 
-            } 
-            if (!WRITE(emitter, string)) return 0; 
-            emitter->indention = 0; 
-            spaces = 0; 
-            breaks = 0; 
-        } 
-    } 
- 
+        if (!PUT(emitter, ' ')) return 0;
+    }
+
+    while (string.pointer != string.end)
+    {
+        if (IS_SPACE(string))
+        {
+            if (allow_breaks && !spaces
+                    && emitter->column > emitter->best_width
+                    && !IS_SPACE_AT(string, 1)) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+                MOVE(string);
+            }
+            else {
+                if (!WRITE(emitter, string)) return 0;
+            }
+            spaces = 1;
+        }
+        else if (IS_BREAK(string))
+        {
+            if (!breaks && CHECK(string, '\n')) {
+                if (!PUT_BREAK(emitter)) return 0;
+            }
+            if (!WRITE_BREAK(emitter, string)) return 0;
+            emitter->indention = 1;
+            breaks = 1;
+        }
+        else
+        {
+            if (breaks) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+            }
+            if (!WRITE(emitter, string)) return 0;
+            emitter->indention = 0;
+            spaces = 0;
+            breaks = 0;
+        }
+    }
+
+    emitter->whitespace = 0;
+    emitter->indention = 0;
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length, int allow_breaks)
+{
+    yaml_string_t string;
+    int spaces = 0;
+    int breaks = 0;
+
+    STRING_ASSIGN(string, value, length);
+
+    if (!yaml_emitter_write_indicator(emitter, "'", 1, 0, 0))
+        return 0;
+
+    while (string.pointer != string.end)
+    {
+        if (IS_SPACE(string))
+        {
+            if (allow_breaks && !spaces
+                    && emitter->column > emitter->best_width
+                    && string.pointer != string.start
+                    && string.pointer != string.end - 1
+                    && !IS_SPACE_AT(string, 1)) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+                MOVE(string);
+            }
+            else {
+                if (!WRITE(emitter, string)) return 0;
+            }
+            spaces = 1;
+        }
+        else if (IS_BREAK(string))
+        {
+            if (!breaks && CHECK(string, '\n')) {
+                if (!PUT_BREAK(emitter)) return 0;
+            }
+            if (!WRITE_BREAK(emitter, string)) return 0;
+            emitter->indention = 1;
+            breaks = 1;
+        }
+        else
+        {
+            if (breaks) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+            }
+            if (CHECK(string, '\'')) {
+                if (!PUT(emitter, '\'')) return 0;
+            }
+            if (!WRITE(emitter, string)) return 0;
+            emitter->indention = 0;
+            spaces = 0;
+            breaks = 0;
+        }
+    }
+
     if (breaks)
         if (!yaml_emitter_write_indent(emitter)) return 0;
 
-    if (!yaml_emitter_write_indicator(emitter, "'", 0, 0, 0)) 
-        return 0; 
- 
-    emitter->whitespace = 0; 
-    emitter->indention = 0; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length, int allow_breaks) 
-{ 
-    yaml_string_t string; 
-    int spaces = 0; 
- 
-    STRING_ASSIGN(string, value, length); 
- 
-    if (!yaml_emitter_write_indicator(emitter, "\"", 1, 0, 0)) 
-        return 0; 
- 
-    while (string.pointer != string.end) 
-    { 
-        if (!IS_PRINTABLE(string) || (!emitter->unicode && !IS_ASCII(string)) 
-                || IS_BOM(string) || IS_BREAK(string) 
-                || CHECK(string, '"') || CHECK(string, '\\')) 
-        { 
-            unsigned char octet; 
-            unsigned int width; 
-            unsigned int value; 
-            int k; 
- 
-            octet = string.pointer[0]; 
-            width = (octet & 0x80) == 0x00 ? 1 : 
-                    (octet & 0xE0) == 0xC0 ? 2 : 
-                    (octet & 0xF0) == 0xE0 ? 3 : 
-                    (octet & 0xF8) == 0xF0 ? 4 : 0; 
-            value = (octet & 0x80) == 0x00 ? octet & 0x7F : 
-                    (octet & 0xE0) == 0xC0 ? octet & 0x1F : 
-                    (octet & 0xF0) == 0xE0 ? octet & 0x0F : 
-                    (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; 
-            for (k = 1; k < (int)width; k ++) { 
-                octet = string.pointer[k]; 
-                value = (value << 6) + (octet & 0x3F); 
-            } 
-            string.pointer += width; 
- 
-            if (!PUT(emitter, '\\')) return 0; 
- 
-            switch (value) 
-            { 
-                case 0x00: 
-                    if (!PUT(emitter, '0')) return 0; 
-                    break; 
- 
-                case 0x07: 
-                    if (!PUT(emitter, 'a')) return 0; 
-                    break; 
- 
-                case 0x08: 
-                    if (!PUT(emitter, 'b')) return 0; 
-                    break; 
- 
-                case 0x09: 
-                    if (!PUT(emitter, 't')) return 0; 
-                    break; 
- 
-                case 0x0A: 
-                    if (!PUT(emitter, 'n')) return 0; 
-                    break; 
- 
-                case 0x0B: 
-                    if (!PUT(emitter, 'v')) return 0; 
-                    break; 
- 
-                case 0x0C: 
-                    if (!PUT(emitter, 'f')) return 0; 
-                    break; 
- 
-                case 0x0D: 
-                    if (!PUT(emitter, 'r')) return 0; 
-                    break; 
- 
-                case 0x1B: 
-                    if (!PUT(emitter, 'e')) return 0; 
-                    break; 
- 
-                case 0x22: 
-                    if (!PUT(emitter, '\"')) return 0; 
-                    break; 
- 
-                case 0x5C: 
-                    if (!PUT(emitter, '\\')) return 0; 
-                    break; 
- 
-                case 0x85: 
-                    if (!PUT(emitter, 'N')) return 0; 
-                    break; 
- 
-                case 0xA0: 
-                    if (!PUT(emitter, '_')) return 0; 
-                    break; 
- 
-                case 0x2028: 
-                    if (!PUT(emitter, 'L')) return 0; 
-                    break; 
- 
-                case 0x2029: 
-                    if (!PUT(emitter, 'P')) return 0; 
-                    break; 
- 
-                default: 
-                    if (value <= 0xFF) { 
-                        if (!PUT(emitter, 'x')) return 0; 
-                        width = 2; 
-                    } 
-                    else if (value <= 0xFFFF) { 
-                        if (!PUT(emitter, 'u')) return 0; 
-                        width = 4; 
-                    } 
-                    else { 
-                        if (!PUT(emitter, 'U')) return 0; 
-                        width = 8; 
-                    } 
-                    for (k = (width-1)*4; k >= 0; k -= 4) { 
-                        int digit = (value >> k) & 0x0F; 
-                        if (!PUT(emitter, digit + (digit < 10 ? '0' : 'A'-10))) 
-                            return 0; 
-                    } 
-            } 
-            spaces = 0; 
-        } 
-        else if (IS_SPACE(string)) 
-        { 
-            if (allow_breaks && !spaces 
-                    && emitter->column > emitter->best_width 
-                    && string.pointer != string.start 
-                    && string.pointer != string.end - 1) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-                if (IS_SPACE_AT(string, 1)) { 
-                    if (!PUT(emitter, '\\')) return 0; 
-                } 
-                MOVE(string); 
-            } 
-            else { 
-                if (!WRITE(emitter, string)) return 0; 
-            } 
-            spaces = 1; 
-        } 
-        else 
-        { 
-            if (!WRITE(emitter, string)) return 0; 
-            spaces = 0; 
-        } 
-    } 
- 
-    if (!yaml_emitter_write_indicator(emitter, "\"", 0, 0, 0)) 
-        return 0; 
- 
-    emitter->whitespace = 0; 
-    emitter->indention = 0; 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter, 
-        yaml_string_t string) 
-{ 
-    char indent_hint[2]; 
+    if (!yaml_emitter_write_indicator(emitter, "'", 0, 0, 0))
+        return 0;
+
+    emitter->whitespace = 0;
+    emitter->indention = 0;
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length, int allow_breaks)
+{
+    yaml_string_t string;
+    int spaces = 0;
+
+    STRING_ASSIGN(string, value, length);
+
+    if (!yaml_emitter_write_indicator(emitter, "\"", 1, 0, 0))
+        return 0;
+
+    while (string.pointer != string.end)
+    {
+        if (!IS_PRINTABLE(string) || (!emitter->unicode && !IS_ASCII(string))
+                || IS_BOM(string) || IS_BREAK(string)
+                || CHECK(string, '"') || CHECK(string, '\\'))
+        {
+            unsigned char octet;
+            unsigned int width;
+            unsigned int value;
+            int k;
+
+            octet = string.pointer[0];
+            width = (octet & 0x80) == 0x00 ? 1 :
+                    (octet & 0xE0) == 0xC0 ? 2 :
+                    (octet & 0xF0) == 0xE0 ? 3 :
+                    (octet & 0xF8) == 0xF0 ? 4 : 0;
+            value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+                    (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+                    (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+                    (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+            for (k = 1; k < (int)width; k ++) {
+                octet = string.pointer[k];
+                value = (value << 6) + (octet & 0x3F);
+            }
+            string.pointer += width;
+
+            if (!PUT(emitter, '\\')) return 0;
+
+            switch (value)
+            {
+                case 0x00:
+                    if (!PUT(emitter, '0')) return 0;
+                    break;
+
+                case 0x07:
+                    if (!PUT(emitter, 'a')) return 0;
+                    break;
+
+                case 0x08:
+                    if (!PUT(emitter, 'b')) return 0;
+                    break;
+
+                case 0x09:
+                    if (!PUT(emitter, 't')) return 0;
+                    break;
+
+                case 0x0A:
+                    if (!PUT(emitter, 'n')) return 0;
+                    break;
+
+                case 0x0B:
+                    if (!PUT(emitter, 'v')) return 0;
+                    break;
+
+                case 0x0C:
+                    if (!PUT(emitter, 'f')) return 0;
+                    break;
+
+                case 0x0D:
+                    if (!PUT(emitter, 'r')) return 0;
+                    break;
+
+                case 0x1B:
+                    if (!PUT(emitter, 'e')) return 0;
+                    break;
+
+                case 0x22:
+                    if (!PUT(emitter, '\"')) return 0;
+                    break;
+
+                case 0x5C:
+                    if (!PUT(emitter, '\\')) return 0;
+                    break;
+
+                case 0x85:
+                    if (!PUT(emitter, 'N')) return 0;
+                    break;
+
+                case 0xA0:
+                    if (!PUT(emitter, '_')) return 0;
+                    break;
+
+                case 0x2028:
+                    if (!PUT(emitter, 'L')) return 0;
+                    break;
+
+                case 0x2029:
+                    if (!PUT(emitter, 'P')) return 0;
+                    break;
+
+                default:
+                    if (value <= 0xFF) {
+                        if (!PUT(emitter, 'x')) return 0;
+                        width = 2;
+                    }
+                    else if (value <= 0xFFFF) {
+                        if (!PUT(emitter, 'u')) return 0;
+                        width = 4;
+                    }
+                    else {
+                        if (!PUT(emitter, 'U')) return 0;
+                        width = 8;
+                    }
+                    for (k = (width-1)*4; k >= 0; k -= 4) {
+                        int digit = (value >> k) & 0x0F;
+                        if (!PUT(emitter, digit + (digit < 10 ? '0' : 'A'-10)))
+                            return 0;
+                    }
+            }
+            spaces = 0;
+        }
+        else if (IS_SPACE(string))
+        {
+            if (allow_breaks && !spaces
+                    && emitter->column > emitter->best_width
+                    && string.pointer != string.start
+                    && string.pointer != string.end - 1) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+                if (IS_SPACE_AT(string, 1)) {
+                    if (!PUT(emitter, '\\')) return 0;
+                }
+                MOVE(string);
+            }
+            else {
+                if (!WRITE(emitter, string)) return 0;
+            }
+            spaces = 1;
+        }
+        else
+        {
+            if (!WRITE(emitter, string)) return 0;
+            spaces = 0;
+        }
+    }
+
+    if (!yaml_emitter_write_indicator(emitter, "\"", 0, 0, 0))
+        return 0;
+
+    emitter->whitespace = 0;
+    emitter->indention = 0;
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter,
+        yaml_string_t string)
+{
+    char indent_hint[2];
     const char *chomp_hint = NULL;
- 
-    if (IS_SPACE(string) || IS_BREAK(string)) 
-    { 
-        indent_hint[0] = '0' + (char)emitter->best_indent; 
-        indent_hint[1] = '\0'; 
-        if (!yaml_emitter_write_indicator(emitter, indent_hint, 0, 0, 0)) 
-            return 0; 
-    } 
- 
-    emitter->open_ended = 0; 
- 
-    string.pointer = string.end; 
-    if (string.start == string.pointer) 
-    { 
-        chomp_hint = "-"; 
-    } 
-    else 
-    { 
-        do { 
-            string.pointer --; 
-        } while ((*string.pointer & 0xC0) == 0x80); 
-        if (!IS_BREAK(string)) 
-        { 
-            chomp_hint = "-"; 
-        } 
-        else if (string.start == string.pointer) 
-        { 
-            chomp_hint = "+"; 
+
+    if (IS_SPACE(string) || IS_BREAK(string))
+    {
+        indent_hint[0] = '0' + (char)emitter->best_indent;
+        indent_hint[1] = '\0';
+        if (!yaml_emitter_write_indicator(emitter, indent_hint, 0, 0, 0))
+            return 0;
+    }
+
+    emitter->open_ended = 0;
+
+    string.pointer = string.end;
+    if (string.start == string.pointer)
+    {
+        chomp_hint = "-";
+    }
+    else
+    {
+        do {
+            string.pointer --;
+        } while ((*string.pointer & 0xC0) == 0x80);
+        if (!IS_BREAK(string))
+        {
+            chomp_hint = "-";
+        }
+        else if (string.start == string.pointer)
+        {
+            chomp_hint = "+";
             emitter->open_ended = 2;
-        } 
-        else 
-        { 
-            do { 
-                string.pointer --; 
-            } while ((*string.pointer & 0xC0) == 0x80); 
-            if (IS_BREAK(string)) 
-            { 
-                chomp_hint = "+"; 
+        }
+        else
+        {
+            do {
+                string.pointer --;
+            } while ((*string.pointer & 0xC0) == 0x80);
+            if (IS_BREAK(string))
+            {
+                chomp_hint = "+";
                 emitter->open_ended = 2;
-            } 
-        } 
-    } 
- 
-    if (chomp_hint) 
-    { 
-        if (!yaml_emitter_write_indicator(emitter, chomp_hint, 0, 0, 0)) 
-            return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length) 
-{ 
-    yaml_string_t string; 
-    int breaks = 1; 
- 
-    STRING_ASSIGN(string, value, length); 
- 
-    if (!yaml_emitter_write_indicator(emitter, "|", 1, 0, 0)) 
-        return 0; 
-    if (!yaml_emitter_write_block_scalar_hints(emitter, string)) 
-        return 0; 
-    if (!PUT_BREAK(emitter)) return 0; 
-    emitter->indention = 1; 
-    emitter->whitespace = 1; 
- 
-    while (string.pointer != string.end) 
-    { 
-        if (IS_BREAK(string)) 
-        { 
-            if (!WRITE_BREAK(emitter, string)) return 0; 
-            emitter->indention = 1; 
-            breaks = 1; 
-        } 
-        else 
-        { 
-            if (breaks) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-            } 
-            if (!WRITE(emitter, string)) return 0; 
-            emitter->indention = 0; 
-            breaks = 0; 
-        } 
-    } 
- 
-    return 1; 
-} 
- 
-static int 
-yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, 
-        yaml_char_t *value, size_t length) 
-{ 
-    yaml_string_t string; 
-    int breaks = 1; 
-    int leading_spaces = 1; 
- 
-    STRING_ASSIGN(string, value, length); 
- 
-    if (!yaml_emitter_write_indicator(emitter, ">", 1, 0, 0)) 
-        return 0; 
-    if (!yaml_emitter_write_block_scalar_hints(emitter, string)) 
-        return 0; 
-    if (!PUT_BREAK(emitter)) return 0; 
-    emitter->indention = 1; 
-    emitter->whitespace = 1; 
- 
-    while (string.pointer != string.end) 
-    { 
-        if (IS_BREAK(string)) 
-        { 
-            if (!breaks && !leading_spaces && CHECK(string, '\n')) { 
-                int k = 0; 
-                while (IS_BREAK_AT(string, k)) { 
-                    k += WIDTH_AT(string, k); 
-                } 
-                if (!IS_BLANKZ_AT(string, k)) { 
-                    if (!PUT_BREAK(emitter)) return 0; 
-                } 
-            } 
-            if (!WRITE_BREAK(emitter, string)) return 0; 
-            emitter->indention = 1; 
-            breaks = 1; 
-        } 
-        else 
-        { 
-            if (breaks) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-                leading_spaces = IS_BLANK(string); 
-            } 
-            if (!breaks && IS_SPACE(string) && !IS_SPACE_AT(string, 1) 
-                    && emitter->column > emitter->best_width) { 
-                if (!yaml_emitter_write_indent(emitter)) return 0; 
-                MOVE(string); 
-            } 
-            else { 
-                if (!WRITE(emitter, string)) return 0; 
-            } 
-            emitter->indention = 0; 
-            breaks = 0; 
-        } 
-    } 
- 
-    return 1; 
-} 
+            }
+        }
+    }
+
+    if (chomp_hint)
+    {
+        if (!yaml_emitter_write_indicator(emitter, chomp_hint, 0, 0, 0))
+            return 0;
+    }
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length)
+{
+    yaml_string_t string;
+    int breaks = 1;
+
+    STRING_ASSIGN(string, value, length);
+
+    if (!yaml_emitter_write_indicator(emitter, "|", 1, 0, 0))
+        return 0;
+    if (!yaml_emitter_write_block_scalar_hints(emitter, string))
+        return 0;
+    if (!PUT_BREAK(emitter)) return 0;
+    emitter->indention = 1;
+    emitter->whitespace = 1;
+
+    while (string.pointer != string.end)
+    {
+        if (IS_BREAK(string))
+        {
+            if (!WRITE_BREAK(emitter, string)) return 0;
+            emitter->indention = 1;
+            breaks = 1;
+        }
+        else
+        {
+            if (breaks) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+            }
+            if (!WRITE(emitter, string)) return 0;
+            emitter->indention = 0;
+            breaks = 0;
+        }
+    }
+
+    return 1;
+}
+
+static int
+yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter,
+        yaml_char_t *value, size_t length)
+{
+    yaml_string_t string;
+    int breaks = 1;
+    int leading_spaces = 1;
+
+    STRING_ASSIGN(string, value, length);
+
+    if (!yaml_emitter_write_indicator(emitter, ">", 1, 0, 0))
+        return 0;
+    if (!yaml_emitter_write_block_scalar_hints(emitter, string))
+        return 0;
+    if (!PUT_BREAK(emitter)) return 0;
+    emitter->indention = 1;
+    emitter->whitespace = 1;
+
+    while (string.pointer != string.end)
+    {
+        if (IS_BREAK(string))
+        {
+            if (!breaks && !leading_spaces && CHECK(string, '\n')) {
+                int k = 0;
+                while (IS_BREAK_AT(string, k)) {
+                    k += WIDTH_AT(string, k);
+                }
+                if (!IS_BLANKZ_AT(string, k)) {
+                    if (!PUT_BREAK(emitter)) return 0;
+                }
+            }
+            if (!WRITE_BREAK(emitter, string)) return 0;
+            emitter->indention = 1;
+            breaks = 1;
+        }
+        else
+        {
+            if (breaks) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+                leading_spaces = IS_BLANK(string);
+            }
+            if (!breaks && IS_SPACE(string) && !IS_SPACE_AT(string, 1)
+                    && emitter->column > emitter->best_width) {
+                if (!yaml_emitter_write_indent(emitter)) return 0;
+                MOVE(string);
+            }
+            else {
+                if (!WRITE(emitter, string)) return 0;
+            }
+            emitter->indention = 0;
+            breaks = 0;
+        }
+    }
+
+    return 1;
+}
diff --git a/contrib/libs/yaml/src/loader.c b/contrib/libs/yaml/src/loader.c
index e77b07b43f..dea8ac428c 100644
--- a/contrib/libs/yaml/src/loader.c
+++ b/contrib/libs/yaml/src/loader.c
@@ -1,43 +1,43 @@
- 
-#include "yaml_private.h" 
- 
-/* 
- * API functions. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document); 
- 
-/* 
- * Error handling. 
- */ 
- 
-static int 
-yaml_parser_set_composer_error(yaml_parser_t *parser, 
-        const char *problem, yaml_mark_t problem_mark); 
- 
-static int 
-yaml_parser_set_composer_error_context(yaml_parser_t *parser, 
-        const char *context, yaml_mark_t context_mark, 
-        const char *problem, yaml_mark_t problem_mark); 
- 
- 
-/* 
- * Alias handling. 
- */ 
- 
-static int 
-yaml_parser_register_anchor(yaml_parser_t *parser, 
-        int index, yaml_char_t *anchor); 
- 
-/* 
- * Clean up functions. 
- */ 
- 
-static void 
-yaml_parser_delete_aliases(yaml_parser_t *parser); 
- 
-/* 
+
+#include "yaml_private.h"
+
+/*
+ * API functions.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document);
+
+/*
+ * Error handling.
+ */
+
+static int
+yaml_parser_set_composer_error(yaml_parser_t *parser,
+        const char *problem, yaml_mark_t problem_mark);
+
+static int
+yaml_parser_set_composer_error_context(yaml_parser_t *parser,
+        const char *context, yaml_mark_t context_mark,
+        const char *problem, yaml_mark_t problem_mark);
+
+
+/*
+ * Alias handling.
+ */
+
+static int
+yaml_parser_register_anchor(yaml_parser_t *parser,
+        int index, yaml_char_t *anchor);
+
+/*
+ * Clean up functions.
+ */
+
+static void
+yaml_parser_delete_aliases(yaml_parser_t *parser);
+
+/*
  * Document loading context.
  */
 struct loader_ctx {
@@ -47,177 +47,177 @@ struct loader_ctx {
 };
 
 /*
- * Composer functions. 
- */ 
+ * Composer functions.
+ */
 static int
 yaml_parser_load_nodes(yaml_parser_t *parser, struct loader_ctx *ctx);
- 
-static int 
+
+static int
 yaml_parser_load_document(yaml_parser_t *parser, yaml_event_t *event);
- 
-static int 
+
+static int
 yaml_parser_load_alias(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx);
- 
-static int 
+
+static int
 yaml_parser_load_scalar(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx);
- 
-static int 
+
+static int
 yaml_parser_load_sequence(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx);
- 
-static int 
+
+static int
 yaml_parser_load_mapping(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx);
- 
-static int 
+
+static int
 yaml_parser_load_sequence_end(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx);
- 
+
 static int
 yaml_parser_load_mapping_end(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx);
 
-/* 
- * Load the next document of the stream. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document) 
-{ 
-    yaml_event_t event; 
- 
-    assert(parser);     /* Non-NULL parser object is expected. */ 
-    assert(document);   /* Non-NULL document object is expected. */ 
- 
-    memset(document, 0, sizeof(yaml_document_t)); 
+/*
+ * Load the next document of the stream.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document)
+{
+    yaml_event_t event;
+
+    assert(parser);     /* Non-NULL parser object is expected. */
+    assert(document);   /* Non-NULL document object is expected. */
+
+    memset(document, 0, sizeof(yaml_document_t));
     if (!STACK_INIT(parser, document->nodes, yaml_node_t*))
-        goto error; 
- 
-    if (!parser->stream_start_produced) { 
-        if (!yaml_parser_parse(parser, &event)) goto error; 
-        assert(event.type == YAML_STREAM_START_EVENT); 
-                        /* STREAM-START is expected. */ 
-    } 
- 
-    if (parser->stream_end_produced) { 
-        return 1; 
-    } 
- 
-    if (!yaml_parser_parse(parser, &event)) goto error; 
-    if (event.type == YAML_STREAM_END_EVENT) { 
-        return 1; 
-    } 
- 
+        goto error;
+
+    if (!parser->stream_start_produced) {
+        if (!yaml_parser_parse(parser, &event)) goto error;
+        assert(event.type == YAML_STREAM_START_EVENT);
+                        /* STREAM-START is expected. */
+    }
+
+    if (parser->stream_end_produced) {
+        return 1;
+    }
+
+    if (!yaml_parser_parse(parser, &event)) goto error;
+    if (event.type == YAML_STREAM_END_EVENT) {
+        return 1;
+    }
+
     if (!STACK_INIT(parser, parser->aliases, yaml_alias_data_t*))
-        goto error; 
- 
-    parser->document = document; 
- 
-    if (!yaml_parser_load_document(parser, &event)) goto error; 
- 
-    yaml_parser_delete_aliases(parser); 
-    parser->document = NULL; 
- 
-    return 1; 
- 
-error: 
- 
-    yaml_parser_delete_aliases(parser); 
-    yaml_document_delete(document); 
-    parser->document = NULL; 
- 
-    return 0; 
-} 
- 
-/* 
- * Set composer error. 
- */ 
- 
-static int 
-yaml_parser_set_composer_error(yaml_parser_t *parser, 
-        const char *problem, yaml_mark_t problem_mark) 
-{ 
-    parser->error = YAML_COMPOSER_ERROR; 
-    parser->problem = problem; 
-    parser->problem_mark = problem_mark; 
- 
-    return 0; 
-} 
- 
-/* 
- * Set composer error with context. 
- */ 
- 
-static int 
-yaml_parser_set_composer_error_context(yaml_parser_t *parser, 
-        const char *context, yaml_mark_t context_mark, 
-        const char *problem, yaml_mark_t problem_mark) 
-{ 
-    parser->error = YAML_COMPOSER_ERROR; 
-    parser->context = context; 
-    parser->context_mark = context_mark; 
-    parser->problem = problem; 
-    parser->problem_mark = problem_mark; 
- 
-    return 0; 
-} 
- 
-/* 
- * Delete the stack of aliases. 
- */ 
- 
-static void 
-yaml_parser_delete_aliases(yaml_parser_t *parser) 
-{ 
-    while (!STACK_EMPTY(parser, parser->aliases)) { 
-        yaml_free(POP(parser, parser->aliases).anchor); 
-    } 
-    STACK_DEL(parser, parser->aliases); 
-} 
- 
-/* 
- * Compose a document object. 
- */ 
- 
-static int 
+        goto error;
+
+    parser->document = document;
+
+    if (!yaml_parser_load_document(parser, &event)) goto error;
+
+    yaml_parser_delete_aliases(parser);
+    parser->document = NULL;
+
+    return 1;
+
+error:
+
+    yaml_parser_delete_aliases(parser);
+    yaml_document_delete(document);
+    parser->document = NULL;
+
+    return 0;
+}
+
+/*
+ * Set composer error.
+ */
+
+static int
+yaml_parser_set_composer_error(yaml_parser_t *parser,
+        const char *problem, yaml_mark_t problem_mark)
+{
+    parser->error = YAML_COMPOSER_ERROR;
+    parser->problem = problem;
+    parser->problem_mark = problem_mark;
+
+    return 0;
+}
+
+/*
+ * Set composer error with context.
+ */
+
+static int
+yaml_parser_set_composer_error_context(yaml_parser_t *parser,
+        const char *context, yaml_mark_t context_mark,
+        const char *problem, yaml_mark_t problem_mark)
+{
+    parser->error = YAML_COMPOSER_ERROR;
+    parser->context = context;
+    parser->context_mark = context_mark;
+    parser->problem = problem;
+    parser->problem_mark = problem_mark;
+
+    return 0;
+}
+
+/*
+ * Delete the stack of aliases.
+ */
+
+static void
+yaml_parser_delete_aliases(yaml_parser_t *parser)
+{
+    while (!STACK_EMPTY(parser, parser->aliases)) {
+        yaml_free(POP(parser, parser->aliases).anchor);
+    }
+    STACK_DEL(parser, parser->aliases);
+}
+
+/*
+ * Compose a document object.
+ */
+
+static int
 yaml_parser_load_document(yaml_parser_t *parser, yaml_event_t *event)
-{ 
+{
     struct loader_ctx ctx = { NULL, NULL, NULL };
- 
+
     assert(event->type == YAML_DOCUMENT_START_EVENT);
-                        /* DOCUMENT-START is expected. */ 
- 
-    parser->document->version_directive 
+                        /* DOCUMENT-START is expected. */
+
+    parser->document->version_directive
         = event->data.document_start.version_directive;
-    parser->document->tag_directives.start 
+    parser->document->tag_directives.start
         = event->data.document_start.tag_directives.start;
-    parser->document->tag_directives.end 
+    parser->document->tag_directives.end
         = event->data.document_start.tag_directives.end;
-    parser->document->start_implicit 
+    parser->document->start_implicit
         = event->data.document_start.implicit;
     parser->document->start_mark = event->start_mark;
- 
+
     if (!STACK_INIT(parser, ctx, int*)) return 0;
     if (!yaml_parser_load_nodes(parser, &ctx)) {
         STACK_DEL(parser, ctx);
         return 0;
     }
     STACK_DEL(parser, ctx);
- 
-    return 1; 
-} 
- 
-/* 
+
+    return 1;
+}
+
+/*
  * Compose a node tree.
- */ 
- 
-static int 
+ */
+
+static int
 yaml_parser_load_nodes(yaml_parser_t *parser, struct loader_ctx *ctx)
-{ 
+{
     yaml_event_t event;
- 
+
     do {
         if (!yaml_parser_parse(parser, &event)) return 0;
 
@@ -254,44 +254,44 @@ yaml_parser_load_nodes(yaml_parser_t *parser, struct loader_ctx *ctx)
     parser->document->end_mark = event.end_mark;
 
     return 1;
-} 
- 
-/* 
- * Add an anchor. 
- */ 
- 
-static int 
-yaml_parser_register_anchor(yaml_parser_t *parser, 
-        int index, yaml_char_t *anchor) 
-{ 
-    yaml_alias_data_t data; 
-    yaml_alias_data_t *alias_data; 
- 
-    if (!anchor) return 1; 
- 
-    data.anchor = anchor; 
-    data.index = index; 
-    data.mark = parser->document->nodes.start[index-1].start_mark; 
- 
-    for (alias_data = parser->aliases.start; 
-            alias_data != parser->aliases.top; alias_data ++) { 
-        if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) { 
-            yaml_free(anchor); 
-            return yaml_parser_set_composer_error_context(parser, 
+}
+
+/*
+ * Add an anchor.
+ */
+
+static int
+yaml_parser_register_anchor(yaml_parser_t *parser,
+        int index, yaml_char_t *anchor)
+{
+    yaml_alias_data_t data;
+    yaml_alias_data_t *alias_data;
+
+    if (!anchor) return 1;
+
+    data.anchor = anchor;
+    data.index = index;
+    data.mark = parser->document->nodes.start[index-1].start_mark;
+
+    for (alias_data = parser->aliases.start;
+            alias_data != parser->aliases.top; alias_data ++) {
+        if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) {
+            yaml_free(anchor);
+            return yaml_parser_set_composer_error_context(parser,
                     "found duplicate anchor; first occurrence",
                     alias_data->mark, "second occurrence", data.mark);
-        } 
-    } 
- 
-    if (!PUSH(parser, parser->aliases, data)) { 
-        yaml_free(anchor); 
-        return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
+        }
+    }
+
+    if (!PUSH(parser, parser->aliases, data)) {
+        yaml_free(anchor);
+        return 0;
+    }
+
+    return 1;
+}
+
+/*
  * Compose node into its parent in the stree.
  */
 
@@ -344,120 +344,120 @@ yaml_parser_load_node_add(yaml_parser_t *parser, struct loader_ctx *ctx,
 }
 
 /*
- * Compose a node corresponding to an alias. 
- */ 
- 
-static int 
+ * Compose a node corresponding to an alias.
+ */
+
+static int
 yaml_parser_load_alias(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx)
-{ 
+{
     yaml_char_t *anchor = event->data.alias.anchor;
-    yaml_alias_data_t *alias_data; 
- 
-    for (alias_data = parser->aliases.start; 
-            alias_data != parser->aliases.top; alias_data ++) { 
-        if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) { 
-            yaml_free(anchor); 
+    yaml_alias_data_t *alias_data;
+
+    for (alias_data = parser->aliases.start;
+            alias_data != parser->aliases.top; alias_data ++) {
+        if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) {
+            yaml_free(anchor);
             return yaml_parser_load_node_add(parser, ctx, alias_data->index);
-        } 
-    } 
- 
-    yaml_free(anchor); 
-    return yaml_parser_set_composer_error(parser, "found undefined alias", 
+        }
+    }
+
+    yaml_free(anchor);
+    return yaml_parser_set_composer_error(parser, "found undefined alias",
             event->start_mark);
-} 
- 
-/* 
- * Compose a scalar node. 
- */ 
- 
-static int 
+}
+
+/*
+ * Compose a scalar node.
+ */
+
+static int
 yaml_parser_load_scalar(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx)
-{ 
-    yaml_node_t node; 
-    int index; 
+{
+    yaml_node_t node;
+    int index;
     yaml_char_t *tag = event->data.scalar.tag;
- 
-    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error; 
- 
-    if (!tag || strcmp((char *)tag, "!") == 0) { 
-        yaml_free(tag); 
-        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SCALAR_TAG); 
-        if (!tag) goto error; 
-    } 
- 
+
+    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error;
+
+    if (!tag || strcmp((char *)tag, "!") == 0) {
+        yaml_free(tag);
+        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SCALAR_TAG);
+        if (!tag) goto error;
+    }
+
     SCALAR_NODE_INIT(node, tag, event->data.scalar.value,
             event->data.scalar.length, event->data.scalar.style,
             event->start_mark, event->end_mark);
- 
-    if (!PUSH(parser, parser->document->nodes, node)) goto error; 
- 
-    index = parser->document->nodes.top - parser->document->nodes.start; 
- 
-    if (!yaml_parser_register_anchor(parser, index, 
+
+    if (!PUSH(parser, parser->document->nodes, node)) goto error;
+
+    index = parser->document->nodes.top - parser->document->nodes.start;
+
+    if (!yaml_parser_register_anchor(parser, index,
                 event->data.scalar.anchor)) return 0;
- 
+
     return yaml_parser_load_node_add(parser, ctx, index);
- 
-error: 
-    yaml_free(tag); 
+
+error:
+    yaml_free(tag);
     yaml_free(event->data.scalar.anchor);
     yaml_free(event->data.scalar.value);
-    return 0; 
-} 
- 
-/* 
- * Compose a sequence node. 
- */ 
- 
-static int 
+    return 0;
+}
+
+/*
+ * Compose a sequence node.
+ */
+
+static int
 yaml_parser_load_sequence(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx)
-{ 
-    yaml_node_t node; 
-    struct { 
-        yaml_node_item_t *start; 
-        yaml_node_item_t *end; 
-        yaml_node_item_t *top; 
-    } items = { NULL, NULL, NULL }; 
+{
+    yaml_node_t node;
+    struct {
+        yaml_node_item_t *start;
+        yaml_node_item_t *end;
+        yaml_node_item_t *top;
+    } items = { NULL, NULL, NULL };
     int index;
     yaml_char_t *tag = event->data.sequence_start.tag;
- 
-    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error; 
- 
-    if (!tag || strcmp((char *)tag, "!") == 0) { 
-        yaml_free(tag); 
-        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG); 
-        if (!tag) goto error; 
-    } 
- 
+
+    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error;
+
+    if (!tag || strcmp((char *)tag, "!") == 0) {
+        yaml_free(tag);
+        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG);
+        if (!tag) goto error;
+    }
+
     if (!STACK_INIT(parser, items, yaml_node_item_t*)) goto error;
- 
-    SEQUENCE_NODE_INIT(node, tag, items.start, items.end, 
+
+    SEQUENCE_NODE_INIT(node, tag, items.start, items.end,
             event->data.sequence_start.style,
             event->start_mark, event->end_mark);
- 
-    if (!PUSH(parser, parser->document->nodes, node)) goto error; 
- 
-    index = parser->document->nodes.top - parser->document->nodes.start; 
- 
-    if (!yaml_parser_register_anchor(parser, index, 
+
+    if (!PUSH(parser, parser->document->nodes, node)) goto error;
+
+    index = parser->document->nodes.top - parser->document->nodes.start;
+
+    if (!yaml_parser_register_anchor(parser, index,
                 event->data.sequence_start.anchor)) return 0;
- 
+
     if (!yaml_parser_load_node_add(parser, ctx, index)) return 0;
- 
+
     if (!STACK_LIMIT(parser, *ctx, INT_MAX-1)) return 0;
     if (!PUSH(parser, *ctx, index)) return 0;
- 
+
     return 1;
- 
-error: 
-    yaml_free(tag); 
+
+error:
+    yaml_free(tag);
     yaml_free(event->data.sequence_start.anchor);
-    return 0; 
-} 
- 
+    return 0;
+}
+
 static int
 yaml_parser_load_sequence_end(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx)
@@ -475,57 +475,57 @@ yaml_parser_load_sequence_end(yaml_parser_t *parser, yaml_event_t *event,
     return 1;
 }
 
-/* 
- * Compose a mapping node. 
- */ 
- 
-static int 
+/*
+ * Compose a mapping node.
+ */
+
+static int
 yaml_parser_load_mapping(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx)
-{ 
-    yaml_node_t node; 
-    struct { 
-        yaml_node_pair_t *start; 
-        yaml_node_pair_t *end; 
-        yaml_node_pair_t *top; 
-    } pairs = { NULL, NULL, NULL }; 
-    int index; 
+{
+    yaml_node_t node;
+    struct {
+        yaml_node_pair_t *start;
+        yaml_node_pair_t *end;
+        yaml_node_pair_t *top;
+    } pairs = { NULL, NULL, NULL };
+    int index;
     yaml_char_t *tag = event->data.mapping_start.tag;
- 
-    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error; 
- 
-    if (!tag || strcmp((char *)tag, "!") == 0) { 
-        yaml_free(tag); 
-        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_MAPPING_TAG); 
-        if (!tag) goto error; 
-    } 
- 
+
+    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error;
+
+    if (!tag || strcmp((char *)tag, "!") == 0) {
+        yaml_free(tag);
+        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_MAPPING_TAG);
+        if (!tag) goto error;
+    }
+
     if (!STACK_INIT(parser, pairs, yaml_node_pair_t*)) goto error;
- 
-    MAPPING_NODE_INIT(node, tag, pairs.start, pairs.end, 
+
+    MAPPING_NODE_INIT(node, tag, pairs.start, pairs.end,
             event->data.mapping_start.style,
             event->start_mark, event->end_mark);
- 
-    if (!PUSH(parser, parser->document->nodes, node)) goto error; 
- 
-    index = parser->document->nodes.top - parser->document->nodes.start; 
- 
-    if (!yaml_parser_register_anchor(parser, index, 
+
+    if (!PUSH(parser, parser->document->nodes, node)) goto error;
+
+    index = parser->document->nodes.top - parser->document->nodes.start;
+
+    if (!yaml_parser_register_anchor(parser, index,
                 event->data.mapping_start.anchor)) return 0;
- 
+
     if (!yaml_parser_load_node_add(parser, ctx, index)) return 0;
- 
+
     if (!STACK_LIMIT(parser, *ctx, INT_MAX-1)) return 0;
     if (!PUSH(parser, *ctx, index)) return 0;
- 
+
     return 1;
- 
-error: 
-    yaml_free(tag); 
+
+error:
+    yaml_free(tag);
     yaml_free(event->data.mapping_start.anchor);
-    return 0; 
-} 
- 
+    return 0;
+}
+
 static int
 yaml_parser_load_mapping_end(yaml_parser_t *parser, yaml_event_t *event,
         struct loader_ctx *ctx)
diff --git a/contrib/libs/yaml/src/parser.c b/contrib/libs/yaml/src/parser.c
index 320ed703b4..ec2f8d3e05 100644
--- a/contrib/libs/yaml/src/parser.c
+++ b/contrib/libs/yaml/src/parser.c
@@ -1,1375 +1,1375 @@
- 
-/* 
- * The parser implements the following grammar: 
- * 
- * stream               ::= STREAM-START implicit_document? explicit_document* STREAM-END 
- * implicit_document    ::= block_node DOCUMENT-END* 
- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* 
- * block_node_or_indentless_sequence    ::= 
- *                          ALIAS 
- *                          | properties (block_content | indentless_block_sequence)? 
- *                          | block_content 
- *                          | indentless_block_sequence 
- * block_node           ::= ALIAS 
- *                          | properties block_content? 
- *                          | block_content 
- * flow_node            ::= ALIAS 
- *                          | properties flow_content? 
- *                          | flow_content 
- * properties           ::= TAG ANCHOR? | ANCHOR TAG? 
- * block_content        ::= block_collection | flow_collection | SCALAR 
- * flow_content         ::= flow_collection | SCALAR 
- * block_collection     ::= block_sequence | block_mapping 
- * flow_collection      ::= flow_sequence | flow_mapping 
- * block_sequence       ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END 
- * indentless_sequence  ::= (BLOCK-ENTRY block_node?)+ 
- * block_mapping        ::= BLOCK-MAPPING_START 
- *                          ((KEY block_node_or_indentless_sequence?)? 
- *                          (VALUE block_node_or_indentless_sequence?)?)* 
- *                          BLOCK-END 
- * flow_sequence        ::= FLOW-SEQUENCE-START 
- *                          (flow_sequence_entry FLOW-ENTRY)* 
- *                          flow_sequence_entry? 
- *                          FLOW-SEQUENCE-END 
- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- * flow_mapping         ::= FLOW-MAPPING-START 
- *                          (flow_mapping_entry FLOW-ENTRY)* 
- *                          flow_mapping_entry? 
- *                          FLOW-MAPPING-END 
- * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- */ 
- 
-#include "yaml_private.h" 
- 
-/* 
- * Peek the next token in the token queue. 
- */ 
- 
-#define PEEK_TOKEN(parser)                                                      \ 
-    ((parser->token_available || yaml_parser_fetch_more_tokens(parser)) ?       \ 
-        parser->tokens.head : NULL) 
- 
-/* 
- * Remove the next token from the queue (must be called after PEEK_TOKEN). 
- */ 
- 
-#define SKIP_TOKEN(parser)                                                      \ 
-    (parser->token_available = 0,                                               \ 
-     parser->tokens_parsed ++,                                                  \ 
-     parser->stream_end_produced =                                              \ 
-        (parser->tokens.head->type == YAML_STREAM_END_TOKEN),                   \ 
-     parser->tokens.head ++) 
- 
-/* 
- * Public API declarations. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event); 
- 
-/* 
- * Error handling. 
- */ 
- 
-static int 
-yaml_parser_set_parser_error(yaml_parser_t *parser, 
-        const char *problem, yaml_mark_t problem_mark); 
- 
-static int 
-yaml_parser_set_parser_error_context(yaml_parser_t *parser, 
-        const char *context, yaml_mark_t context_mark, 
-        const char *problem, yaml_mark_t problem_mark); 
- 
-/* 
- * State functions. 
- */ 
- 
-static int 
-yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event, 
-        int implicit); 
- 
-static int 
-yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event, 
-        int block, int indentless_sequence); 
- 
-static int 
-yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_block_mapping_key(yaml_parser_t *parser, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_parser_parse_block_mapping_value(yaml_parser_t *parser, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser, 
-        yaml_event_t *event); 
- 
-static int 
-yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser, 
-        yaml_event_t *event, int first); 
- 
-static int 
-yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser, 
-        yaml_event_t *event, int empty); 
- 
-/* 
- * Utility functions. 
- */ 
- 
-static int 
-yaml_parser_process_empty_scalar(yaml_parser_t *parser, 
-        yaml_event_t *event, yaml_mark_t mark); 
- 
-static int 
-yaml_parser_process_directives(yaml_parser_t *parser, 
-        yaml_version_directive_t **version_directive_ref, 
-        yaml_tag_directive_t **tag_directives_start_ref, 
-        yaml_tag_directive_t **tag_directives_end_ref); 
- 
-static int 
-yaml_parser_append_tag_directive(yaml_parser_t *parser, 
-        yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark); 
- 
-/* 
- * Get the next event. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event) 
-{ 
-    assert(parser);     /* Non-NULL parser object is expected. */ 
-    assert(event);      /* Non-NULL event object is expected. */ 
- 
-    /* Erase the event object. */ 
- 
-    memset(event, 0, sizeof(yaml_event_t)); 
- 
-    /* No events after the end of the stream or error. */ 
- 
-    if (parser->stream_end_produced || parser->error || 
-            parser->state == YAML_PARSE_END_STATE) { 
-        return 1; 
-    } 
- 
-    /* Generate the next event. */ 
- 
-    return yaml_parser_state_machine(parser, event); 
-} 
- 
-/* 
- * Set parser error. 
- */ 
- 
-static int 
-yaml_parser_set_parser_error(yaml_parser_t *parser, 
-        const char *problem, yaml_mark_t problem_mark) 
-{ 
-    parser->error = YAML_PARSER_ERROR; 
-    parser->problem = problem; 
-    parser->problem_mark = problem_mark; 
- 
-    return 0; 
-} 
- 
-static int 
-yaml_parser_set_parser_error_context(yaml_parser_t *parser, 
-        const char *context, yaml_mark_t context_mark, 
-        const char *problem, yaml_mark_t problem_mark) 
-{ 
-    parser->error = YAML_PARSER_ERROR; 
-    parser->context = context; 
-    parser->context_mark = context_mark; 
-    parser->problem = problem; 
-    parser->problem_mark = problem_mark; 
- 
-    return 0; 
-} 
- 
- 
-/* 
- * State dispatcher. 
- */ 
- 
-static int 
-yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event) 
-{ 
-    switch (parser->state) 
-    { 
-        case YAML_PARSE_STREAM_START_STATE: 
-            return yaml_parser_parse_stream_start(parser, event); 
- 
-        case YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE: 
-            return yaml_parser_parse_document_start(parser, event, 1); 
- 
-        case YAML_PARSE_DOCUMENT_START_STATE: 
-            return yaml_parser_parse_document_start(parser, event, 0); 
- 
-        case YAML_PARSE_DOCUMENT_CONTENT_STATE: 
-            return yaml_parser_parse_document_content(parser, event); 
- 
-        case YAML_PARSE_DOCUMENT_END_STATE: 
-            return yaml_parser_parse_document_end(parser, event); 
- 
-        case YAML_PARSE_BLOCK_NODE_STATE: 
-            return yaml_parser_parse_node(parser, event, 1, 0); 
- 
-        case YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: 
-            return yaml_parser_parse_node(parser, event, 1, 1); 
- 
-        case YAML_PARSE_FLOW_NODE_STATE: 
-            return yaml_parser_parse_node(parser, event, 0, 0); 
- 
-        case YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: 
-            return yaml_parser_parse_block_sequence_entry(parser, event, 1); 
- 
-        case YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: 
-            return yaml_parser_parse_block_sequence_entry(parser, event, 0); 
- 
-        case YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: 
-            return yaml_parser_parse_indentless_sequence_entry(parser, event); 
- 
-        case YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: 
-            return yaml_parser_parse_block_mapping_key(parser, event, 1); 
- 
-        case YAML_PARSE_BLOCK_MAPPING_KEY_STATE: 
-            return yaml_parser_parse_block_mapping_key(parser, event, 0); 
- 
-        case YAML_PARSE_BLOCK_MAPPING_VALUE_STATE: 
-            return yaml_parser_parse_block_mapping_value(parser, event); 
- 
-        case YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: 
-            return yaml_parser_parse_flow_sequence_entry(parser, event, 1); 
- 
-        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE: 
-            return yaml_parser_parse_flow_sequence_entry(parser, event, 0); 
- 
-        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: 
-            return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event); 
- 
-        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: 
-            return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event); 
- 
-        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: 
-            return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event); 
- 
-        case YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: 
-            return yaml_parser_parse_flow_mapping_key(parser, event, 1); 
- 
-        case YAML_PARSE_FLOW_MAPPING_KEY_STATE: 
-            return yaml_parser_parse_flow_mapping_key(parser, event, 0); 
- 
-        case YAML_PARSE_FLOW_MAPPING_VALUE_STATE: 
-            return yaml_parser_parse_flow_mapping_value(parser, event, 0); 
- 
-        case YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: 
-            return yaml_parser_parse_flow_mapping_value(parser, event, 1); 
- 
-        default: 
-            assert(1);      /* Invalid state. */ 
-    } 
- 
-    return 0; 
-} 
- 
-/* 
- * Parse the production: 
- * stream   ::= STREAM-START implicit_document? explicit_document* STREAM-END 
- *              ************ 
- */ 
- 
-static int 
-yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type != YAML_STREAM_START_TOKEN) { 
-        return yaml_parser_set_parser_error(parser, 
-                "did not find expected <stream-start>", token->start_mark); 
-    } 
- 
-    parser->state = YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE; 
-    STREAM_START_EVENT_INIT(*event, token->data.stream_start.encoding, 
-            token->start_mark, token->start_mark); 
-    SKIP_TOKEN(parser); 
- 
-    return 1; 
-} 
- 
-/* 
- * Parse the productions: 
- * implicit_document    ::= block_node DOCUMENT-END* 
- *                          * 
- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* 
- *                          ************************* 
- */ 
- 
-static int 
-yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event, 
-        int implicit) 
-{ 
-    yaml_token_t *token; 
-    yaml_version_directive_t *version_directive = NULL; 
-    struct { 
-        yaml_tag_directive_t *start; 
-        yaml_tag_directive_t *end; 
-    } tag_directives = { NULL, NULL }; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    /* Parse extra document end indicators. */ 
- 
-    if (!implicit) 
-    { 
-        while (token->type == YAML_DOCUMENT_END_TOKEN) { 
-            SKIP_TOKEN(parser); 
-            token = PEEK_TOKEN(parser); 
-            if (!token) return 0; 
-        } 
-    } 
- 
-    /* Parse an implicit document. */ 
- 
-    if (implicit && token->type != YAML_VERSION_DIRECTIVE_TOKEN && 
-            token->type != YAML_TAG_DIRECTIVE_TOKEN && 
-            token->type != YAML_DOCUMENT_START_TOKEN && 
-            token->type != YAML_STREAM_END_TOKEN) 
-    { 
-        if (!yaml_parser_process_directives(parser, NULL, NULL, NULL)) 
-            return 0; 
-        if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE)) 
-            return 0; 
-        parser->state = YAML_PARSE_BLOCK_NODE_STATE; 
-        DOCUMENT_START_EVENT_INIT(*event, NULL, NULL, NULL, 1, 
-                token->start_mark, token->start_mark); 
-        return 1; 
-    } 
- 
-    /* Parse an explicit document. */ 
- 
-    else if (token->type != YAML_STREAM_END_TOKEN) 
-    { 
-        yaml_mark_t start_mark, end_mark; 
-        start_mark = token->start_mark; 
-        if (!yaml_parser_process_directives(parser, &version_directive, 
-                    &tag_directives.start, &tag_directives.end)) 
-            return 0; 
-        token = PEEK_TOKEN(parser); 
-        if (!token) goto error; 
-        if (token->type != YAML_DOCUMENT_START_TOKEN) { 
-            yaml_parser_set_parser_error(parser, 
-                    "did not find expected <document start>", token->start_mark); 
-            goto error; 
-        } 
-        if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE)) 
-            goto error; 
-        parser->state = YAML_PARSE_DOCUMENT_CONTENT_STATE; 
-        end_mark = token->end_mark; 
-        DOCUMENT_START_EVENT_INIT(*event, version_directive, 
-                tag_directives.start, tag_directives.end, 0, 
-                start_mark, end_mark); 
-        SKIP_TOKEN(parser); 
-        version_directive = NULL; 
-        tag_directives.start = tag_directives.end = NULL; 
-        return 1; 
-    } 
- 
-    /* Parse the stream end. */ 
- 
-    else 
-    { 
-        parser->state = YAML_PARSE_END_STATE; 
-        STREAM_END_EVENT_INIT(*event, token->start_mark, token->end_mark); 
-        SKIP_TOKEN(parser); 
-        return 1; 
-    } 
- 
-error: 
-    yaml_free(version_directive); 
-    while (tag_directives.start != tag_directives.end) { 
-        yaml_free(tag_directives.end[-1].handle); 
-        yaml_free(tag_directives.end[-1].prefix); 
-        tag_directives.end --; 
-    } 
-    yaml_free(tag_directives.start); 
-    return 0; 
-} 
- 
-/* 
- * Parse the productions: 
- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* 
- *                                                    *********** 
- */ 
- 
-static int 
-yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type == YAML_VERSION_DIRECTIVE_TOKEN || 
-            token->type == YAML_TAG_DIRECTIVE_TOKEN || 
-            token->type == YAML_DOCUMENT_START_TOKEN || 
-            token->type == YAML_DOCUMENT_END_TOKEN || 
-            token->type == YAML_STREAM_END_TOKEN) { 
-        parser->state = POP(parser, parser->states); 
-        return yaml_parser_process_empty_scalar(parser, event, 
-                token->start_mark); 
-    } 
-    else { 
-        return yaml_parser_parse_node(parser, event, 1, 0); 
-    } 
-} 
- 
-/* 
- * Parse the productions: 
- * implicit_document    ::= block_node DOCUMENT-END* 
- *                                     ************* 
- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* 
- *                                                                ************* 
- */ 
- 
-static int 
-yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
-    yaml_mark_t start_mark, end_mark; 
-    int implicit = 1; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    start_mark = end_mark = token->start_mark; 
- 
-    if (token->type == YAML_DOCUMENT_END_TOKEN) { 
-        end_mark = token->end_mark; 
-        SKIP_TOKEN(parser); 
-        implicit = 0; 
-    } 
- 
-    while (!STACK_EMPTY(parser, parser->tag_directives)) { 
-        yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives); 
-        yaml_free(tag_directive.handle); 
-        yaml_free(tag_directive.prefix); 
-    } 
- 
-    parser->state = YAML_PARSE_DOCUMENT_START_STATE; 
-    DOCUMENT_END_EVENT_INIT(*event, implicit, start_mark, end_mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Parse the productions: 
- * block_node_or_indentless_sequence    ::= 
- *                          ALIAS 
- *                          ***** 
- *                          | properties (block_content | indentless_block_sequence)? 
- *                            **********  * 
- *                          | block_content | indentless_block_sequence 
- *                            * 
- * block_node           ::= ALIAS 
- *                          ***** 
- *                          | properties block_content? 
- *                            ********** * 
- *                          | block_content 
- *                            * 
- * flow_node            ::= ALIAS 
- *                          ***** 
- *                          | properties flow_content? 
- *                            ********** * 
- *                          | flow_content 
- *                            * 
- * properties           ::= TAG ANCHOR? | ANCHOR TAG? 
- *                          ************************* 
- * block_content        ::= block_collection | flow_collection | SCALAR 
- *                                                               ****** 
- * flow_content         ::= flow_collection | SCALAR 
- *                                            ****** 
- */ 
- 
-static int 
-yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event, 
-        int block, int indentless_sequence) 
-{ 
-    yaml_token_t *token; 
-    yaml_char_t *anchor = NULL; 
-    yaml_char_t *tag_handle = NULL; 
-    yaml_char_t *tag_suffix = NULL; 
-    yaml_char_t *tag = NULL; 
-    yaml_mark_t start_mark, end_mark, tag_mark; 
-    int implicit; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type == YAML_ALIAS_TOKEN) 
-    { 
-        parser->state = POP(parser, parser->states); 
-        ALIAS_EVENT_INIT(*event, token->data.alias.value, 
-                token->start_mark, token->end_mark); 
-        SKIP_TOKEN(parser); 
-        return 1; 
-    } 
- 
-    else 
-    { 
-        start_mark = end_mark = token->start_mark; 
- 
-        if (token->type == YAML_ANCHOR_TOKEN) 
-        { 
-            anchor = token->data.anchor.value; 
-            start_mark = token->start_mark; 
-            end_mark = token->end_mark; 
-            SKIP_TOKEN(parser); 
-            token = PEEK_TOKEN(parser); 
-            if (!token) goto error; 
-            if (token->type == YAML_TAG_TOKEN) 
-            { 
-                tag_handle = token->data.tag.handle; 
-                tag_suffix = token->data.tag.suffix; 
-                tag_mark = token->start_mark; 
-                end_mark = token->end_mark; 
-                SKIP_TOKEN(parser); 
-                token = PEEK_TOKEN(parser); 
-                if (!token) goto error; 
-            } 
-        } 
-        else if (token->type == YAML_TAG_TOKEN) 
-        { 
-            tag_handle = token->data.tag.handle; 
-            tag_suffix = token->data.tag.suffix; 
-            start_mark = tag_mark = token->start_mark; 
-            end_mark = token->end_mark; 
-            SKIP_TOKEN(parser); 
-            token = PEEK_TOKEN(parser); 
-            if (!token) goto error; 
-            if (token->type == YAML_ANCHOR_TOKEN) 
-            { 
-                anchor = token->data.anchor.value; 
-                end_mark = token->end_mark; 
-                SKIP_TOKEN(parser); 
-                token = PEEK_TOKEN(parser); 
-                if (!token) goto error; 
-            } 
-        } 
- 
-        if (tag_handle) { 
-            if (!*tag_handle) { 
-                tag = tag_suffix; 
-                yaml_free(tag_handle); 
-                tag_handle = tag_suffix = NULL; 
-            } 
-            else { 
-                yaml_tag_directive_t *tag_directive; 
-                for (tag_directive = parser->tag_directives.start; 
-                        tag_directive != parser->tag_directives.top; 
-                        tag_directive ++) { 
-                    if (strcmp((char *)tag_directive->handle, (char *)tag_handle) == 0) { 
-                        size_t prefix_len = strlen((char *)tag_directive->prefix); 
-                        size_t suffix_len = strlen((char *)tag_suffix); 
+
+/*
+ * The parser implements the following grammar:
+ *
+ * stream               ::= STREAM-START implicit_document? explicit_document* STREAM-END
+ * implicit_document    ::= block_node DOCUMENT-END*
+ * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+ * block_node_or_indentless_sequence    ::=
+ *                          ALIAS
+ *                          | properties (block_content | indentless_block_sequence)?
+ *                          | block_content
+ *                          | indentless_block_sequence
+ * block_node           ::= ALIAS
+ *                          | properties block_content?
+ *                          | block_content
+ * flow_node            ::= ALIAS
+ *                          | properties flow_content?
+ *                          | flow_content
+ * properties           ::= TAG ANCHOR? | ANCHOR TAG?
+ * block_content        ::= block_collection | flow_collection | SCALAR
+ * flow_content         ::= flow_collection | SCALAR
+ * block_collection     ::= block_sequence | block_mapping
+ * flow_collection      ::= flow_sequence | flow_mapping
+ * block_sequence       ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+ * indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
+ * block_mapping        ::= BLOCK-MAPPING_START
+ *                          ((KEY block_node_or_indentless_sequence?)?
+ *                          (VALUE block_node_or_indentless_sequence?)?)*
+ *                          BLOCK-END
+ * flow_sequence        ::= FLOW-SEQUENCE-START
+ *                          (flow_sequence_entry FLOW-ENTRY)*
+ *                          flow_sequence_entry?
+ *                          FLOW-SEQUENCE-END
+ * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ * flow_mapping         ::= FLOW-MAPPING-START
+ *                          (flow_mapping_entry FLOW-ENTRY)*
+ *                          flow_mapping_entry?
+ *                          FLOW-MAPPING-END
+ * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ */
+
+#include "yaml_private.h"
+
+/*
+ * Peek the next token in the token queue.
+ */
+
+#define PEEK_TOKEN(parser)                                                      \
+    ((parser->token_available || yaml_parser_fetch_more_tokens(parser)) ?       \
+        parser->tokens.head : NULL)
+
+/*
+ * Remove the next token from the queue (must be called after PEEK_TOKEN).
+ */
+
+#define SKIP_TOKEN(parser)                                                      \
+    (parser->token_available = 0,                                               \
+     parser->tokens_parsed ++,                                                  \
+     parser->stream_end_produced =                                              \
+        (parser->tokens.head->type == YAML_STREAM_END_TOKEN),                   \
+     parser->tokens.head ++)
+
+/*
+ * Public API declarations.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event);
+
+/*
+ * Error handling.
+ */
+
+static int
+yaml_parser_set_parser_error(yaml_parser_t *parser,
+        const char *problem, yaml_mark_t problem_mark);
+
+static int
+yaml_parser_set_parser_error_context(yaml_parser_t *parser,
+        const char *context, yaml_mark_t context_mark,
+        const char *problem, yaml_mark_t problem_mark);
+
+/*
+ * State functions.
+ */
+
+static int
+yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event);
+
+static int
+yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event);
+
+static int
+yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event,
+        int implicit);
+
+static int
+yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event);
+
+static int
+yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event);
+
+static int
+yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event,
+        int block, int indentless_sequence);
+
+static int
+yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser,
+        yaml_event_t *event, int first);
+
+static int
+yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser,
+        yaml_event_t *event);
+
+static int
+yaml_parser_parse_block_mapping_key(yaml_parser_t *parser,
+        yaml_event_t *event, int first);
+
+static int
+yaml_parser_parse_block_mapping_value(yaml_parser_t *parser,
+        yaml_event_t *event);
+
+static int
+yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser,
+        yaml_event_t *event, int first);
+
+static int
+yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser,
+        yaml_event_t *event);
+
+static int
+yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser,
+        yaml_event_t *event);
+
+static int
+yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser,
+        yaml_event_t *event);
+
+static int
+yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser,
+        yaml_event_t *event, int first);
+
+static int
+yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser,
+        yaml_event_t *event, int empty);
+
+/*
+ * Utility functions.
+ */
+
+static int
+yaml_parser_process_empty_scalar(yaml_parser_t *parser,
+        yaml_event_t *event, yaml_mark_t mark);
+
+static int
+yaml_parser_process_directives(yaml_parser_t *parser,
+        yaml_version_directive_t **version_directive_ref,
+        yaml_tag_directive_t **tag_directives_start_ref,
+        yaml_tag_directive_t **tag_directives_end_ref);
+
+static int
+yaml_parser_append_tag_directive(yaml_parser_t *parser,
+        yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark);
+
+/*
+ * Get the next event.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event)
+{
+    assert(parser);     /* Non-NULL parser object is expected. */
+    assert(event);      /* Non-NULL event object is expected. */
+
+    /* Erase the event object. */
+
+    memset(event, 0, sizeof(yaml_event_t));
+
+    /* No events after the end of the stream or error. */
+
+    if (parser->stream_end_produced || parser->error ||
+            parser->state == YAML_PARSE_END_STATE) {
+        return 1;
+    }
+
+    /* Generate the next event. */
+
+    return yaml_parser_state_machine(parser, event);
+}
+
+/*
+ * Set parser error.
+ */
+
+static int
+yaml_parser_set_parser_error(yaml_parser_t *parser,
+        const char *problem, yaml_mark_t problem_mark)
+{
+    parser->error = YAML_PARSER_ERROR;
+    parser->problem = problem;
+    parser->problem_mark = problem_mark;
+
+    return 0;
+}
+
+static int
+yaml_parser_set_parser_error_context(yaml_parser_t *parser,
+        const char *context, yaml_mark_t context_mark,
+        const char *problem, yaml_mark_t problem_mark)
+{
+    parser->error = YAML_PARSER_ERROR;
+    parser->context = context;
+    parser->context_mark = context_mark;
+    parser->problem = problem;
+    parser->problem_mark = problem_mark;
+
+    return 0;
+}
+
+
+/*
+ * State dispatcher.
+ */
+
+static int
+yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event)
+{
+    switch (parser->state)
+    {
+        case YAML_PARSE_STREAM_START_STATE:
+            return yaml_parser_parse_stream_start(parser, event);
+
+        case YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+            return yaml_parser_parse_document_start(parser, event, 1);
+
+        case YAML_PARSE_DOCUMENT_START_STATE:
+            return yaml_parser_parse_document_start(parser, event, 0);
+
+        case YAML_PARSE_DOCUMENT_CONTENT_STATE:
+            return yaml_parser_parse_document_content(parser, event);
+
+        case YAML_PARSE_DOCUMENT_END_STATE:
+            return yaml_parser_parse_document_end(parser, event);
+
+        case YAML_PARSE_BLOCK_NODE_STATE:
+            return yaml_parser_parse_node(parser, event, 1, 0);
+
+        case YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+            return yaml_parser_parse_node(parser, event, 1, 1);
+
+        case YAML_PARSE_FLOW_NODE_STATE:
+            return yaml_parser_parse_node(parser, event, 0, 0);
+
+        case YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+            return yaml_parser_parse_block_sequence_entry(parser, event, 1);
+
+        case YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+            return yaml_parser_parse_block_sequence_entry(parser, event, 0);
+
+        case YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+            return yaml_parser_parse_indentless_sequence_entry(parser, event);
+
+        case YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+            return yaml_parser_parse_block_mapping_key(parser, event, 1);
+
+        case YAML_PARSE_BLOCK_MAPPING_KEY_STATE:
+            return yaml_parser_parse_block_mapping_key(parser, event, 0);
+
+        case YAML_PARSE_BLOCK_MAPPING_VALUE_STATE:
+            return yaml_parser_parse_block_mapping_value(parser, event);
+
+        case YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+            return yaml_parser_parse_flow_sequence_entry(parser, event, 1);
+
+        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+            return yaml_parser_parse_flow_sequence_entry(parser, event, 0);
+
+        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+            return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event);
+
+        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+            return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event);
+
+        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+            return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event);
+
+        case YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+            return yaml_parser_parse_flow_mapping_key(parser, event, 1);
+
+        case YAML_PARSE_FLOW_MAPPING_KEY_STATE:
+            return yaml_parser_parse_flow_mapping_key(parser, event, 0);
+
+        case YAML_PARSE_FLOW_MAPPING_VALUE_STATE:
+            return yaml_parser_parse_flow_mapping_value(parser, event, 0);
+
+        case YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+            return yaml_parser_parse_flow_mapping_value(parser, event, 1);
+
+        default:
+            assert(1);      /* Invalid state. */
+    }
+
+    return 0;
+}
+
+/*
+ * Parse the production:
+ * stream   ::= STREAM-START implicit_document? explicit_document* STREAM-END
+ *              ************
+ */
+
+static int
+yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type != YAML_STREAM_START_TOKEN) {
+        return yaml_parser_set_parser_error(parser,
+                "did not find expected <stream-start>", token->start_mark);
+    }
+
+    parser->state = YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE;
+    STREAM_START_EVENT_INIT(*event, token->data.stream_start.encoding,
+            token->start_mark, token->start_mark);
+    SKIP_TOKEN(parser);
+
+    return 1;
+}
+
+/*
+ * Parse the productions:
+ * implicit_document    ::= block_node DOCUMENT-END*
+ *                          *
+ * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+ *                          *************************
+ */
+
+static int
+yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event,
+        int implicit)
+{
+    yaml_token_t *token;
+    yaml_version_directive_t *version_directive = NULL;
+    struct {
+        yaml_tag_directive_t *start;
+        yaml_tag_directive_t *end;
+    } tag_directives = { NULL, NULL };
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    /* Parse extra document end indicators. */
+
+    if (!implicit)
+    {
+        while (token->type == YAML_DOCUMENT_END_TOKEN) {
+            SKIP_TOKEN(parser);
+            token = PEEK_TOKEN(parser);
+            if (!token) return 0;
+        }
+    }
+
+    /* Parse an implicit document. */
+
+    if (implicit && token->type != YAML_VERSION_DIRECTIVE_TOKEN &&
+            token->type != YAML_TAG_DIRECTIVE_TOKEN &&
+            token->type != YAML_DOCUMENT_START_TOKEN &&
+            token->type != YAML_STREAM_END_TOKEN)
+    {
+        if (!yaml_parser_process_directives(parser, NULL, NULL, NULL))
+            return 0;
+        if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE))
+            return 0;
+        parser->state = YAML_PARSE_BLOCK_NODE_STATE;
+        DOCUMENT_START_EVENT_INIT(*event, NULL, NULL, NULL, 1,
+                token->start_mark, token->start_mark);
+        return 1;
+    }
+
+    /* Parse an explicit document. */
+
+    else if (token->type != YAML_STREAM_END_TOKEN)
+    {
+        yaml_mark_t start_mark, end_mark;
+        start_mark = token->start_mark;
+        if (!yaml_parser_process_directives(parser, &version_directive,
+                    &tag_directives.start, &tag_directives.end))
+            return 0;
+        token = PEEK_TOKEN(parser);
+        if (!token) goto error;
+        if (token->type != YAML_DOCUMENT_START_TOKEN) {
+            yaml_parser_set_parser_error(parser,
+                    "did not find expected <document start>", token->start_mark);
+            goto error;
+        }
+        if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE))
+            goto error;
+        parser->state = YAML_PARSE_DOCUMENT_CONTENT_STATE;
+        end_mark = token->end_mark;
+        DOCUMENT_START_EVENT_INIT(*event, version_directive,
+                tag_directives.start, tag_directives.end, 0,
+                start_mark, end_mark);
+        SKIP_TOKEN(parser);
+        version_directive = NULL;
+        tag_directives.start = tag_directives.end = NULL;
+        return 1;
+    }
+
+    /* Parse the stream end. */
+
+    else
+    {
+        parser->state = YAML_PARSE_END_STATE;
+        STREAM_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
+        SKIP_TOKEN(parser);
+        return 1;
+    }
+
+error:
+    yaml_free(version_directive);
+    while (tag_directives.start != tag_directives.end) {
+        yaml_free(tag_directives.end[-1].handle);
+        yaml_free(tag_directives.end[-1].prefix);
+        tag_directives.end --;
+    }
+    yaml_free(tag_directives.start);
+    return 0;
+}
+
+/*
+ * Parse the productions:
+ * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+ *                                                    ***********
+ */
+
+static int
+yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type == YAML_VERSION_DIRECTIVE_TOKEN ||
+            token->type == YAML_TAG_DIRECTIVE_TOKEN ||
+            token->type == YAML_DOCUMENT_START_TOKEN ||
+            token->type == YAML_DOCUMENT_END_TOKEN ||
+            token->type == YAML_STREAM_END_TOKEN) {
+        parser->state = POP(parser, parser->states);
+        return yaml_parser_process_empty_scalar(parser, event,
+                token->start_mark);
+    }
+    else {
+        return yaml_parser_parse_node(parser, event, 1, 0);
+    }
+}
+
+/*
+ * Parse the productions:
+ * implicit_document    ::= block_node DOCUMENT-END*
+ *                                     *************
+ * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+ *                                                                *************
+ */
+
+static int
+yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event)
+{
+    yaml_token_t *token;
+    yaml_mark_t start_mark, end_mark;
+    int implicit = 1;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    start_mark = end_mark = token->start_mark;
+
+    if (token->type == YAML_DOCUMENT_END_TOKEN) {
+        end_mark = token->end_mark;
+        SKIP_TOKEN(parser);
+        implicit = 0;
+    }
+
+    while (!STACK_EMPTY(parser, parser->tag_directives)) {
+        yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives);
+        yaml_free(tag_directive.handle);
+        yaml_free(tag_directive.prefix);
+    }
+
+    parser->state = YAML_PARSE_DOCUMENT_START_STATE;
+    DOCUMENT_END_EVENT_INIT(*event, implicit, start_mark, end_mark);
+
+    return 1;
+}
+
+/*
+ * Parse the productions:
+ * block_node_or_indentless_sequence    ::=
+ *                          ALIAS
+ *                          *****
+ *                          | properties (block_content | indentless_block_sequence)?
+ *                            **********  *
+ *                          | block_content | indentless_block_sequence
+ *                            *
+ * block_node           ::= ALIAS
+ *                          *****
+ *                          | properties block_content?
+ *                            ********** *
+ *                          | block_content
+ *                            *
+ * flow_node            ::= ALIAS
+ *                          *****
+ *                          | properties flow_content?
+ *                            ********** *
+ *                          | flow_content
+ *                            *
+ * properties           ::= TAG ANCHOR? | ANCHOR TAG?
+ *                          *************************
+ * block_content        ::= block_collection | flow_collection | SCALAR
+ *                                                               ******
+ * flow_content         ::= flow_collection | SCALAR
+ *                                            ******
+ */
+
+static int
+yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event,
+        int block, int indentless_sequence)
+{
+    yaml_token_t *token;
+    yaml_char_t *anchor = NULL;
+    yaml_char_t *tag_handle = NULL;
+    yaml_char_t *tag_suffix = NULL;
+    yaml_char_t *tag = NULL;
+    yaml_mark_t start_mark, end_mark, tag_mark;
+    int implicit;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type == YAML_ALIAS_TOKEN)
+    {
+        parser->state = POP(parser, parser->states);
+        ALIAS_EVENT_INIT(*event, token->data.alias.value,
+                token->start_mark, token->end_mark);
+        SKIP_TOKEN(parser);
+        return 1;
+    }
+
+    else
+    {
+        start_mark = end_mark = token->start_mark;
+
+        if (token->type == YAML_ANCHOR_TOKEN)
+        {
+            anchor = token->data.anchor.value;
+            start_mark = token->start_mark;
+            end_mark = token->end_mark;
+            SKIP_TOKEN(parser);
+            token = PEEK_TOKEN(parser);
+            if (!token) goto error;
+            if (token->type == YAML_TAG_TOKEN)
+            {
+                tag_handle = token->data.tag.handle;
+                tag_suffix = token->data.tag.suffix;
+                tag_mark = token->start_mark;
+                end_mark = token->end_mark;
+                SKIP_TOKEN(parser);
+                token = PEEK_TOKEN(parser);
+                if (!token) goto error;
+            }
+        }
+        else if (token->type == YAML_TAG_TOKEN)
+        {
+            tag_handle = token->data.tag.handle;
+            tag_suffix = token->data.tag.suffix;
+            start_mark = tag_mark = token->start_mark;
+            end_mark = token->end_mark;
+            SKIP_TOKEN(parser);
+            token = PEEK_TOKEN(parser);
+            if (!token) goto error;
+            if (token->type == YAML_ANCHOR_TOKEN)
+            {
+                anchor = token->data.anchor.value;
+                end_mark = token->end_mark;
+                SKIP_TOKEN(parser);
+                token = PEEK_TOKEN(parser);
+                if (!token) goto error;
+            }
+        }
+
+        if (tag_handle) {
+            if (!*tag_handle) {
+                tag = tag_suffix;
+                yaml_free(tag_handle);
+                tag_handle = tag_suffix = NULL;
+            }
+            else {
+                yaml_tag_directive_t *tag_directive;
+                for (tag_directive = parser->tag_directives.start;
+                        tag_directive != parser->tag_directives.top;
+                        tag_directive ++) {
+                    if (strcmp((char *)tag_directive->handle, (char *)tag_handle) == 0) {
+                        size_t prefix_len = strlen((char *)tag_directive->prefix);
+                        size_t suffix_len = strlen((char *)tag_suffix);
                         tag = YAML_MALLOC(prefix_len+suffix_len+1);
-                        if (!tag) { 
-                            parser->error = YAML_MEMORY_ERROR; 
-                            goto error; 
-                        } 
-                        memcpy(tag, tag_directive->prefix, prefix_len); 
-                        memcpy(tag+prefix_len, tag_suffix, suffix_len); 
-                        tag[prefix_len+suffix_len] = '\0'; 
-                        yaml_free(tag_handle); 
-                        yaml_free(tag_suffix); 
-                        tag_handle = tag_suffix = NULL; 
-                        break; 
-                    } 
-                } 
-                if (!tag) { 
-                    yaml_parser_set_parser_error_context(parser, 
-                            "while parsing a node", start_mark, 
-                            "found undefined tag handle", tag_mark); 
-                    goto error; 
-                } 
-            } 
-        } 
- 
-        implicit = (!tag || !*tag); 
-        if (indentless_sequence && token->type == YAML_BLOCK_ENTRY_TOKEN) { 
-            end_mark = token->end_mark; 
-            parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE; 
-            SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, 
-                    YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark); 
-            return 1; 
-        } 
-        else { 
-            if (token->type == YAML_SCALAR_TOKEN) { 
-                int plain_implicit = 0; 
-                int quoted_implicit = 0; 
-                end_mark = token->end_mark; 
-                if ((token->data.scalar.style == YAML_PLAIN_SCALAR_STYLE && !tag) 
-                        || (tag && strcmp((char *)tag, "!") == 0)) { 
-                    plain_implicit = 1; 
-                } 
-                else if (!tag) { 
-                    quoted_implicit = 1; 
-                } 
-                parser->state = POP(parser, parser->states); 
-                SCALAR_EVENT_INIT(*event, anchor, tag, 
-                        token->data.scalar.value, token->data.scalar.length, 
-                        plain_implicit, quoted_implicit, 
-                        token->data.scalar.style, start_mark, end_mark); 
-                SKIP_TOKEN(parser); 
-                return 1; 
-            } 
-            else if (token->type == YAML_FLOW_SEQUENCE_START_TOKEN) { 
-                end_mark = token->end_mark; 
-                parser->state = YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE; 
-                SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, 
-                        YAML_FLOW_SEQUENCE_STYLE, start_mark, end_mark); 
-                return 1; 
-            } 
-            else if (token->type == YAML_FLOW_MAPPING_START_TOKEN) { 
-                end_mark = token->end_mark; 
-                parser->state = YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE; 
-                MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit, 
-                        YAML_FLOW_MAPPING_STYLE, start_mark, end_mark); 
-                return 1; 
-            } 
-            else if (block && token->type == YAML_BLOCK_SEQUENCE_START_TOKEN) { 
-                end_mark = token->end_mark; 
-                parser->state = YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE; 
-                SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, 
-                        YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark); 
-                return 1; 
-            } 
-            else if (block && token->type == YAML_BLOCK_MAPPING_START_TOKEN) { 
-                end_mark = token->end_mark; 
-                parser->state = YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE; 
-                MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit, 
-                        YAML_BLOCK_MAPPING_STYLE, start_mark, end_mark); 
-                return 1; 
-            } 
-            else if (anchor || tag) { 
+                        if (!tag) {
+                            parser->error = YAML_MEMORY_ERROR;
+                            goto error;
+                        }
+                        memcpy(tag, tag_directive->prefix, prefix_len);
+                        memcpy(tag+prefix_len, tag_suffix, suffix_len);
+                        tag[prefix_len+suffix_len] = '\0';
+                        yaml_free(tag_handle);
+                        yaml_free(tag_suffix);
+                        tag_handle = tag_suffix = NULL;
+                        break;
+                    }
+                }
+                if (!tag) {
+                    yaml_parser_set_parser_error_context(parser,
+                            "while parsing a node", start_mark,
+                            "found undefined tag handle", tag_mark);
+                    goto error;
+                }
+            }
+        }
+
+        implicit = (!tag || !*tag);
+        if (indentless_sequence && token->type == YAML_BLOCK_ENTRY_TOKEN) {
+            end_mark = token->end_mark;
+            parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE;
+            SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit,
+                    YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark);
+            return 1;
+        }
+        else {
+            if (token->type == YAML_SCALAR_TOKEN) {
+                int plain_implicit = 0;
+                int quoted_implicit = 0;
+                end_mark = token->end_mark;
+                if ((token->data.scalar.style == YAML_PLAIN_SCALAR_STYLE && !tag)
+                        || (tag && strcmp((char *)tag, "!") == 0)) {
+                    plain_implicit = 1;
+                }
+                else if (!tag) {
+                    quoted_implicit = 1;
+                }
+                parser->state = POP(parser, parser->states);
+                SCALAR_EVENT_INIT(*event, anchor, tag,
+                        token->data.scalar.value, token->data.scalar.length,
+                        plain_implicit, quoted_implicit,
+                        token->data.scalar.style, start_mark, end_mark);
+                SKIP_TOKEN(parser);
+                return 1;
+            }
+            else if (token->type == YAML_FLOW_SEQUENCE_START_TOKEN) {
+                end_mark = token->end_mark;
+                parser->state = YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE;
+                SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit,
+                        YAML_FLOW_SEQUENCE_STYLE, start_mark, end_mark);
+                return 1;
+            }
+            else if (token->type == YAML_FLOW_MAPPING_START_TOKEN) {
+                end_mark = token->end_mark;
+                parser->state = YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE;
+                MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit,
+                        YAML_FLOW_MAPPING_STYLE, start_mark, end_mark);
+                return 1;
+            }
+            else if (block && token->type == YAML_BLOCK_SEQUENCE_START_TOKEN) {
+                end_mark = token->end_mark;
+                parser->state = YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE;
+                SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit,
+                        YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark);
+                return 1;
+            }
+            else if (block && token->type == YAML_BLOCK_MAPPING_START_TOKEN) {
+                end_mark = token->end_mark;
+                parser->state = YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE;
+                MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit,
+                        YAML_BLOCK_MAPPING_STYLE, start_mark, end_mark);
+                return 1;
+            }
+            else if (anchor || tag) {
                 yaml_char_t *value = YAML_MALLOC(1);
-                if (!value) { 
-                    parser->error = YAML_MEMORY_ERROR; 
-                    goto error; 
-                } 
-                value[0] = '\0'; 
-                parser->state = POP(parser, parser->states); 
-                SCALAR_EVENT_INIT(*event, anchor, tag, value, 0, 
-                        implicit, 0, YAML_PLAIN_SCALAR_STYLE, 
-                        start_mark, end_mark); 
-                return 1; 
-            } 
-            else { 
-                yaml_parser_set_parser_error_context(parser, 
-                        (block ? "while parsing a block node" 
-                         : "while parsing a flow node"), start_mark, 
-                        "did not find expected node content", token->start_mark); 
-                goto error; 
-            } 
-        } 
-    } 
- 
-error: 
-    yaml_free(anchor); 
-    yaml_free(tag_handle); 
-    yaml_free(tag_suffix); 
-    yaml_free(tag); 
- 
-    return 0; 
-} 
- 
-/* 
- * Parse the productions: 
- * block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END 
- *                    ********************  *********** *             ********* 
- */ 
- 
-static int 
-yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser, 
-        yaml_event_t *event, int first) 
-{ 
-    yaml_token_t *token; 
- 
-    if (first) { 
-        token = PEEK_TOKEN(parser); 
-        if (!PUSH(parser, parser->marks, token->start_mark)) 
-            return 0; 
-        SKIP_TOKEN(parser); 
-    } 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type == YAML_BLOCK_ENTRY_TOKEN) 
-    { 
-        yaml_mark_t mark = token->end_mark; 
-        SKIP_TOKEN(parser); 
-        token = PEEK_TOKEN(parser); 
-        if (!token) return 0; 
-        if (token->type != YAML_BLOCK_ENTRY_TOKEN && 
-                token->type != YAML_BLOCK_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 1, 0); 
-        } 
-        else { 
-            parser->state = YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE; 
-            return yaml_parser_process_empty_scalar(parser, event, mark); 
-        } 
-    } 
- 
-    else if (token->type == YAML_BLOCK_END_TOKEN) 
-    { 
-        parser->state = POP(parser, parser->states); 
+                if (!value) {
+                    parser->error = YAML_MEMORY_ERROR;
+                    goto error;
+                }
+                value[0] = '\0';
+                parser->state = POP(parser, parser->states);
+                SCALAR_EVENT_INIT(*event, anchor, tag, value, 0,
+                        implicit, 0, YAML_PLAIN_SCALAR_STYLE,
+                        start_mark, end_mark);
+                return 1;
+            }
+            else {
+                yaml_parser_set_parser_error_context(parser,
+                        (block ? "while parsing a block node"
+                         : "while parsing a flow node"), start_mark,
+                        "did not find expected node content", token->start_mark);
+                goto error;
+            }
+        }
+    }
+
+error:
+    yaml_free(anchor);
+    yaml_free(tag_handle);
+    yaml_free(tag_suffix);
+    yaml_free(tag);
+
+    return 0;
+}
+
+/*
+ * Parse the productions:
+ * block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+ *                    ********************  *********** *             *********
+ */
+
+static int
+yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser,
+        yaml_event_t *event, int first)
+{
+    yaml_token_t *token;
+
+    if (first) {
+        token = PEEK_TOKEN(parser);
+        if (!PUSH(parser, parser->marks, token->start_mark))
+            return 0;
+        SKIP_TOKEN(parser);
+    }
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type == YAML_BLOCK_ENTRY_TOKEN)
+    {
+        yaml_mark_t mark = token->end_mark;
+        SKIP_TOKEN(parser);
+        token = PEEK_TOKEN(parser);
+        if (!token) return 0;
+        if (token->type != YAML_BLOCK_ENTRY_TOKEN &&
+                token->type != YAML_BLOCK_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 1, 0);
+        }
+        else {
+            parser->state = YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE;
+            return yaml_parser_process_empty_scalar(parser, event, mark);
+        }
+    }
+
+    else if (token->type == YAML_BLOCK_END_TOKEN)
+    {
+        parser->state = POP(parser, parser->states);
         (void)POP(parser, parser->marks);
-        SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark); 
-        SKIP_TOKEN(parser); 
-        return 1; 
-    } 
- 
-    else 
-    { 
-        return yaml_parser_set_parser_error_context(parser, 
-                "while parsing a block collection", POP(parser, parser->marks), 
-                "did not find expected '-' indicator", token->start_mark); 
-    } 
-} 
- 
-/* 
- * Parse the productions: 
- * indentless_sequence  ::= (BLOCK-ENTRY block_node?)+ 
- *                           *********** * 
- */ 
- 
-static int 
-yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser, 
-        yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type == YAML_BLOCK_ENTRY_TOKEN) 
-    { 
-        yaml_mark_t mark = token->end_mark; 
-        SKIP_TOKEN(parser); 
-        token = PEEK_TOKEN(parser); 
-        if (!token) return 0; 
-        if (token->type != YAML_BLOCK_ENTRY_TOKEN && 
-                token->type != YAML_KEY_TOKEN && 
-                token->type != YAML_VALUE_TOKEN && 
-                token->type != YAML_BLOCK_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 1, 0); 
-        } 
-        else { 
-            parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE; 
-            return yaml_parser_process_empty_scalar(parser, event, mark); 
-        } 
-    } 
- 
-    else 
-    { 
-        parser->state = POP(parser, parser->states); 
-        SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->start_mark); 
-        return 1; 
-    } 
-} 
- 
-/* 
- * Parse the productions: 
- * block_mapping        ::= BLOCK-MAPPING_START 
- *                          ******************* 
- *                          ((KEY block_node_or_indentless_sequence?)? 
- *                            *** * 
- *                          (VALUE block_node_or_indentless_sequence?)?)* 
- * 
- *                          BLOCK-END 
- *                          ********* 
- */ 
- 
-static int 
-yaml_parser_parse_block_mapping_key(yaml_parser_t *parser, 
-        yaml_event_t *event, int first) 
-{ 
-    yaml_token_t *token; 
- 
-    if (first) { 
-        token = PEEK_TOKEN(parser); 
-        if (!PUSH(parser, parser->marks, token->start_mark)) 
-            return 0; 
-        SKIP_TOKEN(parser); 
-    } 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type == YAML_KEY_TOKEN) 
-    { 
-        yaml_mark_t mark = token->end_mark; 
-        SKIP_TOKEN(parser); 
-        token = PEEK_TOKEN(parser); 
-        if (!token) return 0; 
-        if (token->type != YAML_KEY_TOKEN && 
-                token->type != YAML_VALUE_TOKEN && 
-                token->type != YAML_BLOCK_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_BLOCK_MAPPING_VALUE_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 1, 1); 
-        } 
-        else { 
-            parser->state = YAML_PARSE_BLOCK_MAPPING_VALUE_STATE; 
-            return yaml_parser_process_empty_scalar(parser, event, mark); 
-        } 
-    } 
- 
-    else if (token->type == YAML_BLOCK_END_TOKEN) 
-    { 
-        parser->state = POP(parser, parser->states); 
+        SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
+        SKIP_TOKEN(parser);
+        return 1;
+    }
+
+    else
+    {
+        return yaml_parser_set_parser_error_context(parser,
+                "while parsing a block collection", POP(parser, parser->marks),
+                "did not find expected '-' indicator", token->start_mark);
+    }
+}
+
+/*
+ * Parse the productions:
+ * indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
+ *                           *********** *
+ */
+
+static int
+yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser,
+        yaml_event_t *event)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type == YAML_BLOCK_ENTRY_TOKEN)
+    {
+        yaml_mark_t mark = token->end_mark;
+        SKIP_TOKEN(parser);
+        token = PEEK_TOKEN(parser);
+        if (!token) return 0;
+        if (token->type != YAML_BLOCK_ENTRY_TOKEN &&
+                token->type != YAML_KEY_TOKEN &&
+                token->type != YAML_VALUE_TOKEN &&
+                token->type != YAML_BLOCK_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 1, 0);
+        }
+        else {
+            parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE;
+            return yaml_parser_process_empty_scalar(parser, event, mark);
+        }
+    }
+
+    else
+    {
+        parser->state = POP(parser, parser->states);
+        SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->start_mark);
+        return 1;
+    }
+}
+
+/*
+ * Parse the productions:
+ * block_mapping        ::= BLOCK-MAPPING_START
+ *                          *******************
+ *                          ((KEY block_node_or_indentless_sequence?)?
+ *                            *** *
+ *                          (VALUE block_node_or_indentless_sequence?)?)*
+ *
+ *                          BLOCK-END
+ *                          *********
+ */
+
+static int
+yaml_parser_parse_block_mapping_key(yaml_parser_t *parser,
+        yaml_event_t *event, int first)
+{
+    yaml_token_t *token;
+
+    if (first) {
+        token = PEEK_TOKEN(parser);
+        if (!PUSH(parser, parser->marks, token->start_mark))
+            return 0;
+        SKIP_TOKEN(parser);
+    }
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type == YAML_KEY_TOKEN)
+    {
+        yaml_mark_t mark = token->end_mark;
+        SKIP_TOKEN(parser);
+        token = PEEK_TOKEN(parser);
+        if (!token) return 0;
+        if (token->type != YAML_KEY_TOKEN &&
+                token->type != YAML_VALUE_TOKEN &&
+                token->type != YAML_BLOCK_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_BLOCK_MAPPING_VALUE_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 1, 1);
+        }
+        else {
+            parser->state = YAML_PARSE_BLOCK_MAPPING_VALUE_STATE;
+            return yaml_parser_process_empty_scalar(parser, event, mark);
+        }
+    }
+
+    else if (token->type == YAML_BLOCK_END_TOKEN)
+    {
+        parser->state = POP(parser, parser->states);
         (void)POP(parser, parser->marks);
-        MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark); 
-        SKIP_TOKEN(parser); 
-        return 1; 
-    } 
- 
-    else 
-    { 
-        return yaml_parser_set_parser_error_context(parser, 
-                "while parsing a block mapping", POP(parser, parser->marks), 
-                "did not find expected key", token->start_mark); 
-    } 
-} 
- 
-/* 
- * Parse the productions: 
- * block_mapping        ::= BLOCK-MAPPING_START 
- * 
- *                          ((KEY block_node_or_indentless_sequence?)? 
- * 
- *                          (VALUE block_node_or_indentless_sequence?)?)* 
- *                           ***** * 
- *                          BLOCK-END 
- * 
- */ 
- 
-static int 
-yaml_parser_parse_block_mapping_value(yaml_parser_t *parser, 
-        yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type == YAML_VALUE_TOKEN) 
-    { 
-        yaml_mark_t mark = token->end_mark; 
-        SKIP_TOKEN(parser); 
-        token = PEEK_TOKEN(parser); 
-        if (!token) return 0; 
-        if (token->type != YAML_KEY_TOKEN && 
-                token->type != YAML_VALUE_TOKEN && 
-                token->type != YAML_BLOCK_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_BLOCK_MAPPING_KEY_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 1, 1); 
-        } 
-        else { 
-            parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE; 
-            return yaml_parser_process_empty_scalar(parser, event, mark); 
-        } 
-    } 
- 
-    else 
-    { 
-        parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE; 
-        return yaml_parser_process_empty_scalar(parser, event, token->start_mark); 
-    } 
-} 
- 
-/* 
- * Parse the productions: 
- * flow_sequence        ::= FLOW-SEQUENCE-START 
- *                          ******************* 
- *                          (flow_sequence_entry FLOW-ENTRY)* 
- *                           *                   ********** 
- *                          flow_sequence_entry? 
- *                          * 
- *                          FLOW-SEQUENCE-END 
- *                          ***************** 
- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- *                          * 
- */ 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser, 
-        yaml_event_t *event, int first) 
-{ 
-    yaml_token_t *token; 
- 
-    if (first) { 
-        token = PEEK_TOKEN(parser); 
-        if (!PUSH(parser, parser->marks, token->start_mark)) 
-            return 0; 
-        SKIP_TOKEN(parser); 
-    } 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) 
-    { 
-        if (!first) { 
-            if (token->type == YAML_FLOW_ENTRY_TOKEN) { 
-                SKIP_TOKEN(parser); 
-                token = PEEK_TOKEN(parser); 
-                if (!token) return 0; 
-            } 
-            else { 
-                return yaml_parser_set_parser_error_context(parser, 
-                        "while parsing a flow sequence", POP(parser, parser->marks), 
-                        "did not find expected ',' or ']'", token->start_mark); 
-            } 
-        } 
- 
-        if (token->type == YAML_KEY_TOKEN) { 
-            parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE; 
-            MAPPING_START_EVENT_INIT(*event, NULL, NULL, 
-                    1, YAML_FLOW_MAPPING_STYLE, 
-                    token->start_mark, token->end_mark); 
-            SKIP_TOKEN(parser); 
-            return 1; 
-        } 
- 
-        else if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 0, 0); 
-        } 
-    } 
- 
-    parser->state = POP(parser, parser->states); 
+        MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
+        SKIP_TOKEN(parser);
+        return 1;
+    }
+
+    else
+    {
+        return yaml_parser_set_parser_error_context(parser,
+                "while parsing a block mapping", POP(parser, parser->marks),
+                "did not find expected key", token->start_mark);
+    }
+}
+
+/*
+ * Parse the productions:
+ * block_mapping        ::= BLOCK-MAPPING_START
+ *
+ *                          ((KEY block_node_or_indentless_sequence?)?
+ *
+ *                          (VALUE block_node_or_indentless_sequence?)?)*
+ *                           ***** *
+ *                          BLOCK-END
+ *
+ */
+
+static int
+yaml_parser_parse_block_mapping_value(yaml_parser_t *parser,
+        yaml_event_t *event)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type == YAML_VALUE_TOKEN)
+    {
+        yaml_mark_t mark = token->end_mark;
+        SKIP_TOKEN(parser);
+        token = PEEK_TOKEN(parser);
+        if (!token) return 0;
+        if (token->type != YAML_KEY_TOKEN &&
+                token->type != YAML_VALUE_TOKEN &&
+                token->type != YAML_BLOCK_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_BLOCK_MAPPING_KEY_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 1, 1);
+        }
+        else {
+            parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE;
+            return yaml_parser_process_empty_scalar(parser, event, mark);
+        }
+    }
+
+    else
+    {
+        parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE;
+        return yaml_parser_process_empty_scalar(parser, event, token->start_mark);
+    }
+}
+
+/*
+ * Parse the productions:
+ * flow_sequence        ::= FLOW-SEQUENCE-START
+ *                          *******************
+ *                          (flow_sequence_entry FLOW-ENTRY)*
+ *                           *                   **********
+ *                          flow_sequence_entry?
+ *                          *
+ *                          FLOW-SEQUENCE-END
+ *                          *****************
+ * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ *                          *
+ */
+
+static int
+yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser,
+        yaml_event_t *event, int first)
+{
+    yaml_token_t *token;
+
+    if (first) {
+        token = PEEK_TOKEN(parser);
+        if (!PUSH(parser, parser->marks, token->start_mark))
+            return 0;
+        SKIP_TOKEN(parser);
+    }
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN)
+    {
+        if (!first) {
+            if (token->type == YAML_FLOW_ENTRY_TOKEN) {
+                SKIP_TOKEN(parser);
+                token = PEEK_TOKEN(parser);
+                if (!token) return 0;
+            }
+            else {
+                return yaml_parser_set_parser_error_context(parser,
+                        "while parsing a flow sequence", POP(parser, parser->marks),
+                        "did not find expected ',' or ']'", token->start_mark);
+            }
+        }
+
+        if (token->type == YAML_KEY_TOKEN) {
+            parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE;
+            MAPPING_START_EVENT_INIT(*event, NULL, NULL,
+                    1, YAML_FLOW_MAPPING_STYLE,
+                    token->start_mark, token->end_mark);
+            SKIP_TOKEN(parser);
+            return 1;
+        }
+
+        else if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 0, 0);
+        }
+    }
+
+    parser->state = POP(parser, parser->states);
     (void)POP(parser, parser->marks);
-    SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark); 
-    SKIP_TOKEN(parser); 
-    return 1; 
-} 
- 
-/* 
- * Parse the productions: 
- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- *                                      *** * 
- */ 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser, 
-        yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type != YAML_VALUE_TOKEN && token->type != YAML_FLOW_ENTRY_TOKEN 
-            && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { 
-        if (!PUSH(parser, parser->states, 
-                    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)) 
-            return 0; 
-        return yaml_parser_parse_node(parser, event, 0, 0); 
-    } 
-    else { 
-        yaml_mark_t mark = token->end_mark; 
-        SKIP_TOKEN(parser); 
-        parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE; 
-        return yaml_parser_process_empty_scalar(parser, event, mark); 
-    } 
-} 
- 
-/* 
- * Parse the productions: 
- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- *                                                      ***** * 
- */ 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser, 
-        yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type == YAML_VALUE_TOKEN) { 
-        SKIP_TOKEN(parser); 
-        token = PEEK_TOKEN(parser); 
-        if (!token) return 0; 
-        if (token->type != YAML_FLOW_ENTRY_TOKEN 
-                && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 0, 0); 
-        } 
-    } 
-    parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE; 
-    return yaml_parser_process_empty_scalar(parser, event, token->start_mark); 
-} 
- 
-/* 
- * Parse the productions: 
- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- *                                                                      * 
- */ 
- 
-static int 
-yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser, 
-        yaml_event_t *event) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE; 
- 
-    MAPPING_END_EVENT_INIT(*event, token->start_mark, token->start_mark); 
-    return 1; 
-} 
- 
-/* 
- * Parse the productions: 
- * flow_mapping         ::= FLOW-MAPPING-START 
- *                          ****************** 
- *                          (flow_mapping_entry FLOW-ENTRY)* 
- *                           *                  ********** 
- *                          flow_mapping_entry? 
- *                          ****************** 
- *                          FLOW-MAPPING-END 
- *                          **************** 
- * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- *                          *           *** * 
- */ 
- 
-static int 
-yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser, 
-        yaml_event_t *event, int first) 
-{ 
-    yaml_token_t *token; 
- 
-    if (first) { 
-        token = PEEK_TOKEN(parser); 
-        if (!PUSH(parser, parser->marks, token->start_mark)) 
-            return 0; 
-        SKIP_TOKEN(parser); 
-    } 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (token->type != YAML_FLOW_MAPPING_END_TOKEN) 
-    { 
-        if (!first) { 
-            if (token->type == YAML_FLOW_ENTRY_TOKEN) { 
-                SKIP_TOKEN(parser); 
-                token = PEEK_TOKEN(parser); 
-                if (!token) return 0; 
-            } 
-            else { 
-                return yaml_parser_set_parser_error_context(parser, 
-                        "while parsing a flow mapping", POP(parser, parser->marks), 
-                        "did not find expected ',' or '}'", token->start_mark); 
-            } 
-        } 
- 
-        if (token->type == YAML_KEY_TOKEN) { 
-            SKIP_TOKEN(parser); 
-            token = PEEK_TOKEN(parser); 
-            if (!token) return 0; 
-            if (token->type != YAML_VALUE_TOKEN 
-                    && token->type != YAML_FLOW_ENTRY_TOKEN 
-                    && token->type != YAML_FLOW_MAPPING_END_TOKEN) { 
-                if (!PUSH(parser, parser->states, 
-                            YAML_PARSE_FLOW_MAPPING_VALUE_STATE)) 
-                    return 0; 
-                return yaml_parser_parse_node(parser, event, 0, 0); 
-            } 
-            else { 
-                parser->state = YAML_PARSE_FLOW_MAPPING_VALUE_STATE; 
-                return yaml_parser_process_empty_scalar(parser, event, 
-                        token->start_mark); 
-            } 
-        } 
-        else if (token->type != YAML_FLOW_MAPPING_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 0, 0); 
-        } 
-    } 
- 
-    parser->state = POP(parser, parser->states); 
+    SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
+    SKIP_TOKEN(parser);
+    return 1;
+}
+
+/*
+ * Parse the productions:
+ * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ *                                      *** *
+ */
+
+static int
+yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser,
+        yaml_event_t *event)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type != YAML_VALUE_TOKEN && token->type != YAML_FLOW_ENTRY_TOKEN
+            && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) {
+        if (!PUSH(parser, parser->states,
+                    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE))
+            return 0;
+        return yaml_parser_parse_node(parser, event, 0, 0);
+    }
+    else {
+        yaml_mark_t mark = token->end_mark;
+        SKIP_TOKEN(parser);
+        parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE;
+        return yaml_parser_process_empty_scalar(parser, event, mark);
+    }
+}
+
+/*
+ * Parse the productions:
+ * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ *                                                      ***** *
+ */
+
+static int
+yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser,
+        yaml_event_t *event)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type == YAML_VALUE_TOKEN) {
+        SKIP_TOKEN(parser);
+        token = PEEK_TOKEN(parser);
+        if (!token) return 0;
+        if (token->type != YAML_FLOW_ENTRY_TOKEN
+                && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 0, 0);
+        }
+    }
+    parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE;
+    return yaml_parser_process_empty_scalar(parser, event, token->start_mark);
+}
+
+/*
+ * Parse the productions:
+ * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ *                                                                      *
+ */
+
+static int
+yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser,
+        yaml_event_t *event)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE;
+
+    MAPPING_END_EVENT_INIT(*event, token->start_mark, token->start_mark);
+    return 1;
+}
+
+/*
+ * Parse the productions:
+ * flow_mapping         ::= FLOW-MAPPING-START
+ *                          ******************
+ *                          (flow_mapping_entry FLOW-ENTRY)*
+ *                           *                  **********
+ *                          flow_mapping_entry?
+ *                          ******************
+ *                          FLOW-MAPPING-END
+ *                          ****************
+ * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ *                          *           *** *
+ */
+
+static int
+yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser,
+        yaml_event_t *event, int first)
+{
+    yaml_token_t *token;
+
+    if (first) {
+        token = PEEK_TOKEN(parser);
+        if (!PUSH(parser, parser->marks, token->start_mark))
+            return 0;
+        SKIP_TOKEN(parser);
+    }
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (token->type != YAML_FLOW_MAPPING_END_TOKEN)
+    {
+        if (!first) {
+            if (token->type == YAML_FLOW_ENTRY_TOKEN) {
+                SKIP_TOKEN(parser);
+                token = PEEK_TOKEN(parser);
+                if (!token) return 0;
+            }
+            else {
+                return yaml_parser_set_parser_error_context(parser,
+                        "while parsing a flow mapping", POP(parser, parser->marks),
+                        "did not find expected ',' or '}'", token->start_mark);
+            }
+        }
+
+        if (token->type == YAML_KEY_TOKEN) {
+            SKIP_TOKEN(parser);
+            token = PEEK_TOKEN(parser);
+            if (!token) return 0;
+            if (token->type != YAML_VALUE_TOKEN
+                    && token->type != YAML_FLOW_ENTRY_TOKEN
+                    && token->type != YAML_FLOW_MAPPING_END_TOKEN) {
+                if (!PUSH(parser, parser->states,
+                            YAML_PARSE_FLOW_MAPPING_VALUE_STATE))
+                    return 0;
+                return yaml_parser_parse_node(parser, event, 0, 0);
+            }
+            else {
+                parser->state = YAML_PARSE_FLOW_MAPPING_VALUE_STATE;
+                return yaml_parser_process_empty_scalar(parser, event,
+                        token->start_mark);
+            }
+        }
+        else if (token->type != YAML_FLOW_MAPPING_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 0, 0);
+        }
+    }
+
+    parser->state = POP(parser, parser->states);
     (void)POP(parser, parser->marks);
-    MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark); 
-    SKIP_TOKEN(parser); 
-    return 1; 
-} 
- 
-/* 
- * Parse the productions: 
- * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)? 
- *                                   *                  ***** * 
- */ 
- 
-static int 
-yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser, 
-        yaml_event_t *event, int empty) 
-{ 
-    yaml_token_t *token; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) return 0; 
- 
-    if (empty) { 
-        parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE; 
-        return yaml_parser_process_empty_scalar(parser, event, 
-                token->start_mark); 
-    } 
- 
-    if (token->type == YAML_VALUE_TOKEN) { 
-        SKIP_TOKEN(parser); 
-        token = PEEK_TOKEN(parser); 
-        if (!token) return 0; 
-        if (token->type != YAML_FLOW_ENTRY_TOKEN 
-                && token->type != YAML_FLOW_MAPPING_END_TOKEN) { 
-            if (!PUSH(parser, parser->states, 
-                        YAML_PARSE_FLOW_MAPPING_KEY_STATE)) 
-                return 0; 
-            return yaml_parser_parse_node(parser, event, 0, 0); 
-        } 
-    } 
- 
-    parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE; 
-    return yaml_parser_process_empty_scalar(parser, event, token->start_mark); 
-} 
- 
-/* 
- * Generate an empty scalar event. 
- */ 
- 
-static int 
-yaml_parser_process_empty_scalar(yaml_parser_t *parser, yaml_event_t *event, 
-        yaml_mark_t mark) 
-{ 
-    yaml_char_t *value; 
- 
+    MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
+    SKIP_TOKEN(parser);
+    return 1;
+}
+
+/*
+ * Parse the productions:
+ * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ *                                   *                  ***** *
+ */
+
+static int
+yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser,
+        yaml_event_t *event, int empty)
+{
+    yaml_token_t *token;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) return 0;
+
+    if (empty) {
+        parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE;
+        return yaml_parser_process_empty_scalar(parser, event,
+                token->start_mark);
+    }
+
+    if (token->type == YAML_VALUE_TOKEN) {
+        SKIP_TOKEN(parser);
+        token = PEEK_TOKEN(parser);
+        if (!token) return 0;
+        if (token->type != YAML_FLOW_ENTRY_TOKEN
+                && token->type != YAML_FLOW_MAPPING_END_TOKEN) {
+            if (!PUSH(parser, parser->states,
+                        YAML_PARSE_FLOW_MAPPING_KEY_STATE))
+                return 0;
+            return yaml_parser_parse_node(parser, event, 0, 0);
+        }
+    }
+
+    parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE;
+    return yaml_parser_process_empty_scalar(parser, event, token->start_mark);
+}
+
+/*
+ * Generate an empty scalar event.
+ */
+
+static int
+yaml_parser_process_empty_scalar(yaml_parser_t *parser, yaml_event_t *event,
+        yaml_mark_t mark)
+{
+    yaml_char_t *value;
+
     value = YAML_MALLOC(1);
-    if (!value) { 
-        parser->error = YAML_MEMORY_ERROR; 
-        return 0; 
-    } 
-    value[0] = '\0'; 
- 
-    SCALAR_EVENT_INIT(*event, NULL, NULL, value, 0, 
-            1, 0, YAML_PLAIN_SCALAR_STYLE, mark, mark); 
- 
-    return 1; 
-} 
- 
-/* 
- * Parse directives. 
- */ 
- 
-static int 
-yaml_parser_process_directives(yaml_parser_t *parser, 
-        yaml_version_directive_t **version_directive_ref, 
-        yaml_tag_directive_t **tag_directives_start_ref, 
-        yaml_tag_directive_t **tag_directives_end_ref) 
-{ 
-    yaml_tag_directive_t default_tag_directives[] = { 
-        {(yaml_char_t *)"!", (yaml_char_t *)"!"}, 
-        {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"}, 
-        {NULL, NULL} 
-    }; 
-    yaml_tag_directive_t *default_tag_directive; 
-    yaml_version_directive_t *version_directive = NULL; 
-    struct { 
-        yaml_tag_directive_t *start; 
-        yaml_tag_directive_t *end; 
-        yaml_tag_directive_t *top; 
-    } tag_directives = { NULL, NULL, NULL }; 
-    yaml_token_t *token; 
- 
+    if (!value) {
+        parser->error = YAML_MEMORY_ERROR;
+        return 0;
+    }
+    value[0] = '\0';
+
+    SCALAR_EVENT_INIT(*event, NULL, NULL, value, 0,
+            1, 0, YAML_PLAIN_SCALAR_STYLE, mark, mark);
+
+    return 1;
+}
+
+/*
+ * Parse directives.
+ */
+
+static int
+yaml_parser_process_directives(yaml_parser_t *parser,
+        yaml_version_directive_t **version_directive_ref,
+        yaml_tag_directive_t **tag_directives_start_ref,
+        yaml_tag_directive_t **tag_directives_end_ref)
+{
+    yaml_tag_directive_t default_tag_directives[] = {
+        {(yaml_char_t *)"!", (yaml_char_t *)"!"},
+        {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"},
+        {NULL, NULL}
+    };
+    yaml_tag_directive_t *default_tag_directive;
+    yaml_version_directive_t *version_directive = NULL;
+    struct {
+        yaml_tag_directive_t *start;
+        yaml_tag_directive_t *end;
+        yaml_tag_directive_t *top;
+    } tag_directives = { NULL, NULL, NULL };
+    yaml_token_t *token;
+
     if (!STACK_INIT(parser, tag_directives, yaml_tag_directive_t*))
-        goto error; 
- 
-    token = PEEK_TOKEN(parser); 
-    if (!token) goto error; 
- 
-    while (token->type == YAML_VERSION_DIRECTIVE_TOKEN || 
-            token->type == YAML_TAG_DIRECTIVE_TOKEN) 
-    { 
-        if (token->type == YAML_VERSION_DIRECTIVE_TOKEN) { 
-            if (version_directive) { 
-                yaml_parser_set_parser_error(parser, 
-                        "found duplicate %YAML directive", token->start_mark); 
-                goto error; 
-            } 
-            if (token->data.version_directive.major != 1 
+        goto error;
+
+    token = PEEK_TOKEN(parser);
+    if (!token) goto error;
+
+    while (token->type == YAML_VERSION_DIRECTIVE_TOKEN ||
+            token->type == YAML_TAG_DIRECTIVE_TOKEN)
+    {
+        if (token->type == YAML_VERSION_DIRECTIVE_TOKEN) {
+            if (version_directive) {
+                yaml_parser_set_parser_error(parser,
+                        "found duplicate %YAML directive", token->start_mark);
+                goto error;
+            }
+            if (token->data.version_directive.major != 1
                     || (
                         token->data.version_directive.minor != 1
                         && token->data.version_directive.minor != 2
                     )) {
-                yaml_parser_set_parser_error(parser, 
-                        "found incompatible YAML document", token->start_mark); 
-                goto error; 
-            } 
+                yaml_parser_set_parser_error(parser,
+                        "found incompatible YAML document", token->start_mark);
+                goto error;
+            }
             version_directive = YAML_MALLOC_STATIC(yaml_version_directive_t);
-            if (!version_directive) { 
-                parser->error = YAML_MEMORY_ERROR; 
-                goto error; 
-            } 
-            version_directive->major = token->data.version_directive.major; 
-            version_directive->minor = token->data.version_directive.minor; 
-        } 
- 
-        else if (token->type == YAML_TAG_DIRECTIVE_TOKEN) { 
-            yaml_tag_directive_t value; 
-            value.handle = token->data.tag_directive.handle; 
-            value.prefix = token->data.tag_directive.prefix; 
- 
-            if (!yaml_parser_append_tag_directive(parser, value, 0, 
-                        token->start_mark)) 
-                goto error; 
-            if (!PUSH(parser, tag_directives, value)) 
-                goto error; 
-        } 
- 
-        SKIP_TOKEN(parser); 
-        token = PEEK_TOKEN(parser); 
-        if (!token) goto error; 
-    } 
-
-    for (default_tag_directive = default_tag_directives; 
-            default_tag_directive->handle; default_tag_directive++) { 
-        if (!yaml_parser_append_tag_directive(parser, *default_tag_directive, 1, 
-                    token->start_mark)) 
-            goto error; 
-    } 
- 
-    if (version_directive_ref) { 
-        *version_directive_ref = version_directive; 
-    } 
-    if (tag_directives_start_ref) { 
-        if (STACK_EMPTY(parser, tag_directives)) { 
-            *tag_directives_start_ref = *tag_directives_end_ref = NULL; 
-            STACK_DEL(parser, tag_directives); 
-        } 
-        else { 
-            *tag_directives_start_ref = tag_directives.start; 
-            *tag_directives_end_ref = tag_directives.top; 
-        } 
-    } 
-    else { 
-        STACK_DEL(parser, tag_directives); 
-    } 
- 
+            if (!version_directive) {
+                parser->error = YAML_MEMORY_ERROR;
+                goto error;
+            }
+            version_directive->major = token->data.version_directive.major;
+            version_directive->minor = token->data.version_directive.minor;
+        }
+
+        else if (token->type == YAML_TAG_DIRECTIVE_TOKEN) {
+            yaml_tag_directive_t value;
+            value.handle = token->data.tag_directive.handle;
+            value.prefix = token->data.tag_directive.prefix;
+
+            if (!yaml_parser_append_tag_directive(parser, value, 0,
+                        token->start_mark))
+                goto error;
+            if (!PUSH(parser, tag_directives, value))
+                goto error;
+        }
+
+        SKIP_TOKEN(parser);
+        token = PEEK_TOKEN(parser);
+        if (!token) goto error;
+    }
+
+    for (default_tag_directive = default_tag_directives;
+            default_tag_directive->handle; default_tag_directive++) {
+        if (!yaml_parser_append_tag_directive(parser, *default_tag_directive, 1,
+                    token->start_mark))
+            goto error;
+    }
+
+    if (version_directive_ref) {
+        *version_directive_ref = version_directive;
+    }
+    if (tag_directives_start_ref) {
+        if (STACK_EMPTY(parser, tag_directives)) {
+            *tag_directives_start_ref = *tag_directives_end_ref = NULL;
+            STACK_DEL(parser, tag_directives);
+        }
+        else {
+            *tag_directives_start_ref = tag_directives.start;
+            *tag_directives_end_ref = tag_directives.top;
+        }
+    }
+    else {
+        STACK_DEL(parser, tag_directives);
+    }
+
     if (!version_directive_ref)
         yaml_free(version_directive);
-    return 1; 
- 
-error: 
-    yaml_free(version_directive); 
-    while (!STACK_EMPTY(parser, tag_directives)) { 
-        yaml_tag_directive_t tag_directive = POP(parser, tag_directives); 
-        yaml_free(tag_directive.handle); 
-        yaml_free(tag_directive.prefix); 
-    } 
-    STACK_DEL(parser, tag_directives); 
-    return 0; 
-} 
- 
-/* 
- * Append a tag directive to the directives stack. 
- */ 
- 
-static int 
-yaml_parser_append_tag_directive(yaml_parser_t *parser, 
-        yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark) 
-{ 
-    yaml_tag_directive_t *tag_directive; 
-    yaml_tag_directive_t copy = { NULL, NULL }; 
- 
-    for (tag_directive = parser->tag_directives.start; 
-            tag_directive != parser->tag_directives.top; tag_directive ++) { 
-        if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) { 
-            if (allow_duplicates) 
-                return 1; 
-            return yaml_parser_set_parser_error(parser, 
-                    "found duplicate %TAG directive", mark); 
-        } 
-    } 
- 
-    copy.handle = yaml_strdup(value.handle); 
-    copy.prefix = yaml_strdup(value.prefix); 
-    if (!copy.handle || !copy.prefix) { 
-        parser->error = YAML_MEMORY_ERROR; 
-        goto error; 
-    } 
- 
-    if (!PUSH(parser, parser->tag_directives, copy)) 
-        goto error; 
- 
-    return 1; 
- 
-error: 
-    yaml_free(copy.handle); 
-    yaml_free(copy.prefix); 
-    return 0; 
-} 
- 
+    return 1;
+
+error:
+    yaml_free(version_directive);
+    while (!STACK_EMPTY(parser, tag_directives)) {
+        yaml_tag_directive_t tag_directive = POP(parser, tag_directives);
+        yaml_free(tag_directive.handle);
+        yaml_free(tag_directive.prefix);
+    }
+    STACK_DEL(parser, tag_directives);
+    return 0;
+}
+
+/*
+ * Append a tag directive to the directives stack.
+ */
+
+static int
+yaml_parser_append_tag_directive(yaml_parser_t *parser,
+        yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark)
+{
+    yaml_tag_directive_t *tag_directive;
+    yaml_tag_directive_t copy = { NULL, NULL };
+
+    for (tag_directive = parser->tag_directives.start;
+            tag_directive != parser->tag_directives.top; tag_directive ++) {
+        if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) {
+            if (allow_duplicates)
+                return 1;
+            return yaml_parser_set_parser_error(parser,
+                    "found duplicate %TAG directive", mark);
+        }
+    }
+
+    copy.handle = yaml_strdup(value.handle);
+    copy.prefix = yaml_strdup(value.prefix);
+    if (!copy.handle || !copy.prefix) {
+        parser->error = YAML_MEMORY_ERROR;
+        goto error;
+    }
+
+    if (!PUSH(parser, parser->tag_directives, copy))
+        goto error;
+
+    return 1;
+
+error:
+    yaml_free(copy.handle);
+    yaml_free(copy.prefix);
+    return 0;
+}
+
diff --git a/contrib/libs/yaml/src/reader.c b/contrib/libs/yaml/src/reader.c
index 798770bb3f..f3ac54c251 100644
--- a/contrib/libs/yaml/src/reader.c
+++ b/contrib/libs/yaml/src/reader.c
@@ -1,469 +1,469 @@
- 
-#include "yaml_private.h" 
- 
-/* 
- * Declarations. 
- */ 
- 
-static int 
-yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem, 
-        size_t offset, int value); 
- 
-static int 
-yaml_parser_update_raw_buffer(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_determine_encoding(yaml_parser_t *parser); 
- 
-YAML_DECLARE(int) 
-yaml_parser_update_buffer(yaml_parser_t *parser, size_t length); 
- 
-/* 
- * Set the reader error and return 0. 
- */ 
- 
-static int 
-yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem, 
-        size_t offset, int value) 
-{ 
-    parser->error = YAML_READER_ERROR; 
-    parser->problem = problem; 
-    parser->problem_offset = offset; 
-    parser->problem_value = value; 
- 
-    return 0; 
-} 
- 
-/* 
- * Byte order marks. 
- */ 
- 
-#define BOM_UTF8    "\xef\xbb\xbf" 
-#define BOM_UTF16LE "\xff\xfe" 
-#define BOM_UTF16BE "\xfe\xff" 
- 
-/* 
- * Determine the input stream encoding by checking the BOM symbol. If no BOM is 
- * found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure. 
- */ 
- 
-static int 
-yaml_parser_determine_encoding(yaml_parser_t *parser) 
-{ 
-    /* Ensure that we had enough bytes in the raw buffer. */ 
- 
+
+#include "yaml_private.h"
+
+/*
+ * Declarations.
+ */
+
+static int
+yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem,
+        size_t offset, int value);
+
+static int
+yaml_parser_update_raw_buffer(yaml_parser_t *parser);
+
+static int
+yaml_parser_determine_encoding(yaml_parser_t *parser);
+
+YAML_DECLARE(int)
+yaml_parser_update_buffer(yaml_parser_t *parser, size_t length);
+
+/*
+ * Set the reader error and return 0.
+ */
+
+static int
+yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem,
+        size_t offset, int value)
+{
+    parser->error = YAML_READER_ERROR;
+    parser->problem = problem;
+    parser->problem_offset = offset;
+    parser->problem_value = value;
+
+    return 0;
+}
+
+/*
+ * Byte order marks.
+ */
+
+#define BOM_UTF8    "\xef\xbb\xbf"
+#define BOM_UTF16LE "\xff\xfe"
+#define BOM_UTF16BE "\xfe\xff"
+
+/*
+ * Determine the input stream encoding by checking the BOM symbol. If no BOM is
+ * found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
+ */
+
+static int
+yaml_parser_determine_encoding(yaml_parser_t *parser)
+{
+    /* Ensure that we had enough bytes in the raw buffer. */
+
     while (!parser->eof
-            && parser->raw_buffer.last - parser->raw_buffer.pointer < 3) { 
-        if (!yaml_parser_update_raw_buffer(parser)) { 
-            return 0; 
-        } 
-    } 
- 
-    /* Determine the encoding. */ 
- 
-    if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2 
-            && !memcmp(parser->raw_buffer.pointer, BOM_UTF16LE, 2)) { 
-        parser->encoding = YAML_UTF16LE_ENCODING; 
-        parser->raw_buffer.pointer += 2; 
-        parser->offset += 2; 
-    } 
-    else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2 
-            && !memcmp(parser->raw_buffer.pointer, BOM_UTF16BE, 2)) { 
-        parser->encoding = YAML_UTF16BE_ENCODING; 
-        parser->raw_buffer.pointer += 2; 
-        parser->offset += 2; 
-    } 
-    else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 3 
-            && !memcmp(parser->raw_buffer.pointer, BOM_UTF8, 3)) { 
-        parser->encoding = YAML_UTF8_ENCODING; 
-        parser->raw_buffer.pointer += 3; 
-        parser->offset += 3; 
-    } 
-    else { 
-        parser->encoding = YAML_UTF8_ENCODING; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Update the raw buffer. 
- */ 
- 
-static int 
-yaml_parser_update_raw_buffer(yaml_parser_t *parser) 
-{ 
-    size_t size_read = 0; 
- 
-    /* Return if the raw buffer is full. */ 
- 
-    if (parser->raw_buffer.start == parser->raw_buffer.pointer 
-            && parser->raw_buffer.last == parser->raw_buffer.end) 
-        return 1; 
- 
-    /* Return on EOF. */ 
- 
-    if (parser->eof) return 1; 
- 
-    /* Move the remaining bytes in the raw buffer to the beginning. */ 
- 
-    if (parser->raw_buffer.start < parser->raw_buffer.pointer 
-            && parser->raw_buffer.pointer < parser->raw_buffer.last) { 
-        memmove(parser->raw_buffer.start, parser->raw_buffer.pointer, 
-                parser->raw_buffer.last - parser->raw_buffer.pointer); 
-    } 
-    parser->raw_buffer.last -= 
-        parser->raw_buffer.pointer - parser->raw_buffer.start; 
-    parser->raw_buffer.pointer = parser->raw_buffer.start; 
- 
-    /* Call the read handler to fill the buffer. */ 
- 
-    if (!parser->read_handler(parser->read_handler_data, parser->raw_buffer.last, 
-                parser->raw_buffer.end - parser->raw_buffer.last, &size_read)) { 
-        return yaml_parser_set_reader_error(parser, "input error", 
-                parser->offset, -1); 
-    } 
-    parser->raw_buffer.last += size_read; 
-    if (!size_read) { 
-        parser->eof = 1; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Ensure that the buffer contains at least `length` characters. 
- * Return 1 on success, 0 on failure. 
- * 
- * The length is supposed to be significantly less that the buffer size. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_update_buffer(yaml_parser_t *parser, size_t length) 
-{ 
-    int first = 1; 
- 
-    assert(parser->read_handler);   /* Read handler must be set. */ 
- 
-    /* If the EOF flag is set and the raw buffer is empty, do nothing. */ 
- 
-    if (parser->eof && parser->raw_buffer.pointer == parser->raw_buffer.last) 
-        return 1; 
- 
-    /* Return if the buffer contains enough characters. */ 
- 
-    if (parser->unread >= length) 
-        return 1; 
- 
-    /* Determine the input encoding if it is not known yet. */ 
- 
-    if (!parser->encoding) { 
-        if (!yaml_parser_determine_encoding(parser)) 
-            return 0; 
-    } 
- 
-    /* Move the unread characters to the beginning of the buffer. */ 
- 
-    if (parser->buffer.start < parser->buffer.pointer 
-            && parser->buffer.pointer < parser->buffer.last) { 
-        size_t size = parser->buffer.last - parser->buffer.pointer; 
-        memmove(parser->buffer.start, parser->buffer.pointer, size); 
-        parser->buffer.pointer = parser->buffer.start; 
-        parser->buffer.last = parser->buffer.start + size; 
-    } 
-    else if (parser->buffer.pointer == parser->buffer.last) { 
-        parser->buffer.pointer = parser->buffer.start; 
-        parser->buffer.last = parser->buffer.start; 
-    } 
- 
-    /* Fill the buffer until it has enough characters. */ 
- 
-    while (parser->unread < length) 
-    { 
-        /* Fill the raw buffer if necessary. */ 
- 
-        if (!first || parser->raw_buffer.pointer == parser->raw_buffer.last) { 
-            if (!yaml_parser_update_raw_buffer(parser)) return 0; 
-        } 
-        first = 0; 
- 
-        /* Decode the raw buffer. */ 
- 
-        while (parser->raw_buffer.pointer != parser->raw_buffer.last) 
-        { 
-            unsigned int value = 0, value2 = 0; 
-            int incomplete = 0; 
-            unsigned char octet; 
-            unsigned int width = 0; 
-            int low, high; 
-            size_t k; 
-            size_t raw_unread = parser->raw_buffer.last - parser->raw_buffer.pointer; 
- 
-            /* Decode the next character. */ 
- 
-            switch (parser->encoding) 
-            { 
-                case YAML_UTF8_ENCODING: 
- 
-                    /* 
-                     * Decode a UTF-8 character.  Check RFC 3629 
-                     * (http://www.ietf.org/rfc/rfc3629.txt) for more details. 
-                     * 
-                     * The following table (taken from the RFC) is used for 
-                     * decoding. 
-                     * 
-                     *    Char. number range |        UTF-8 octet sequence 
-                     *      (hexadecimal)    |              (binary) 
-                     *   --------------------+------------------------------------ 
-                     *   0000 0000-0000 007F | 0xxxxxxx 
-                     *   0000 0080-0000 07FF | 110xxxxx 10xxxxxx 
-                     *   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx 
-                     *   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 
-                     * 
-                     * Additionally, the characters in the range 0xD800-0xDFFF 
-                     * are prohibited as they are reserved for use with UTF-16 
-                     * surrogate pairs. 
-                     */ 
- 
-                    /* Determine the length of the UTF-8 sequence. */ 
- 
-                    octet = parser->raw_buffer.pointer[0]; 
-                    width = (octet & 0x80) == 0x00 ? 1 : 
-                            (octet & 0xE0) == 0xC0 ? 2 : 
-                            (octet & 0xF0) == 0xE0 ? 3 : 
-                            (octet & 0xF8) == 0xF0 ? 4 : 0; 
- 
-                    /* Check if the leading octet is valid. */ 
- 
-                    if (!width) 
-                        return yaml_parser_set_reader_error(parser, 
-                                "invalid leading UTF-8 octet", 
-                                parser->offset, octet); 
- 
-                    /* Check if the raw buffer contains an incomplete character. */ 
- 
-                    if (width > raw_unread) { 
-                        if (parser->eof) { 
-                            return yaml_parser_set_reader_error(parser, 
-                                    "incomplete UTF-8 octet sequence", 
-                                    parser->offset, -1); 
-                        } 
-                        incomplete = 1; 
-                        break; 
-                    } 
- 
-                    /* Decode the leading octet. */ 
- 
-                    value = (octet & 0x80) == 0x00 ? octet & 0x7F : 
-                            (octet & 0xE0) == 0xC0 ? octet & 0x1F : 
-                            (octet & 0xF0) == 0xE0 ? octet & 0x0F : 
-                            (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; 
- 
-                    /* Check and decode the trailing octets. */ 
- 
-                    for (k = 1; k < width; k ++) 
-                    { 
-                        octet = parser->raw_buffer.pointer[k]; 
- 
-                        /* Check if the octet is valid. */ 
- 
-                        if ((octet & 0xC0) != 0x80) 
-                            return yaml_parser_set_reader_error(parser, 
-                                    "invalid trailing UTF-8 octet", 
-                                    parser->offset+k, octet); 
- 
-                        /* Decode the octet. */ 
- 
-                        value = (value << 6) + (octet & 0x3F); 
-                    } 
- 
-                    /* Check the length of the sequence against the value. */ 
- 
-                    if (!((width == 1) || 
-                            (width == 2 && value >= 0x80) || 
-                            (width == 3 && value >= 0x800) || 
-                            (width == 4 && value >= 0x10000))) 
-                        return yaml_parser_set_reader_error(parser, 
-                                "invalid length of a UTF-8 sequence", 
-                                parser->offset, -1); 
- 
-                    /* Check the range of the value. */ 
- 
-                    if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF) 
-                        return yaml_parser_set_reader_error(parser, 
-                                "invalid Unicode character", 
-                                parser->offset, value); 
- 
-                    break; 
-
-                case YAML_UTF16LE_ENCODING: 
-                case YAML_UTF16BE_ENCODING: 
- 
-                    low = (parser->encoding == YAML_UTF16LE_ENCODING ? 0 : 1); 
-                    high = (parser->encoding == YAML_UTF16LE_ENCODING ? 1 : 0); 
- 
-                    /* 
-                     * The UTF-16 encoding is not as simple as one might 
-                     * naively think.  Check RFC 2781 
-                     * (http://www.ietf.org/rfc/rfc2781.txt). 
-                     * 
-                     * Normally, two subsequent bytes describe a Unicode 
-                     * character.  However a special technique (called a 
-                     * surrogate pair) is used for specifying character 
-                     * values larger than 0xFFFF. 
-                     * 
-                     * A surrogate pair consists of two pseudo-characters: 
-                     *      high surrogate area (0xD800-0xDBFF) 
-                     *      low surrogate area (0xDC00-0xDFFF) 
-                     * 
-                     * The following formulas are used for decoding 
-                     * and encoding characters using surrogate pairs: 
+            && parser->raw_buffer.last - parser->raw_buffer.pointer < 3) {
+        if (!yaml_parser_update_raw_buffer(parser)) {
+            return 0;
+        }
+    }
+
+    /* Determine the encoding. */
+
+    if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2
+            && !memcmp(parser->raw_buffer.pointer, BOM_UTF16LE, 2)) {
+        parser->encoding = YAML_UTF16LE_ENCODING;
+        parser->raw_buffer.pointer += 2;
+        parser->offset += 2;
+    }
+    else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2
+            && !memcmp(parser->raw_buffer.pointer, BOM_UTF16BE, 2)) {
+        parser->encoding = YAML_UTF16BE_ENCODING;
+        parser->raw_buffer.pointer += 2;
+        parser->offset += 2;
+    }
+    else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 3
+            && !memcmp(parser->raw_buffer.pointer, BOM_UTF8, 3)) {
+        parser->encoding = YAML_UTF8_ENCODING;
+        parser->raw_buffer.pointer += 3;
+        parser->offset += 3;
+    }
+    else {
+        parser->encoding = YAML_UTF8_ENCODING;
+    }
+
+    return 1;
+}
+
+/*
+ * Update the raw buffer.
+ */
+
+static int
+yaml_parser_update_raw_buffer(yaml_parser_t *parser)
+{
+    size_t size_read = 0;
+
+    /* Return if the raw buffer is full. */
+
+    if (parser->raw_buffer.start == parser->raw_buffer.pointer
+            && parser->raw_buffer.last == parser->raw_buffer.end)
+        return 1;
+
+    /* Return on EOF. */
+
+    if (parser->eof) return 1;
+
+    /* Move the remaining bytes in the raw buffer to the beginning. */
+
+    if (parser->raw_buffer.start < parser->raw_buffer.pointer
+            && parser->raw_buffer.pointer < parser->raw_buffer.last) {
+        memmove(parser->raw_buffer.start, parser->raw_buffer.pointer,
+                parser->raw_buffer.last - parser->raw_buffer.pointer);
+    }
+    parser->raw_buffer.last -=
+        parser->raw_buffer.pointer - parser->raw_buffer.start;
+    parser->raw_buffer.pointer = parser->raw_buffer.start;
+
+    /* Call the read handler to fill the buffer. */
+
+    if (!parser->read_handler(parser->read_handler_data, parser->raw_buffer.last,
+                parser->raw_buffer.end - parser->raw_buffer.last, &size_read)) {
+        return yaml_parser_set_reader_error(parser, "input error",
+                parser->offset, -1);
+    }
+    parser->raw_buffer.last += size_read;
+    if (!size_read) {
+        parser->eof = 1;
+    }
+
+    return 1;
+}
+
+/*
+ * Ensure that the buffer contains at least `length` characters.
+ * Return 1 on success, 0 on failure.
+ *
+ * The length is supposed to be significantly less that the buffer size.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_update_buffer(yaml_parser_t *parser, size_t length)
+{
+    int first = 1;
+
+    assert(parser->read_handler);   /* Read handler must be set. */
+
+    /* If the EOF flag is set and the raw buffer is empty, do nothing. */
+
+    if (parser->eof && parser->raw_buffer.pointer == parser->raw_buffer.last)
+        return 1;
+
+    /* Return if the buffer contains enough characters. */
+
+    if (parser->unread >= length)
+        return 1;
+
+    /* Determine the input encoding if it is not known yet. */
+
+    if (!parser->encoding) {
+        if (!yaml_parser_determine_encoding(parser))
+            return 0;
+    }
+
+    /* Move the unread characters to the beginning of the buffer. */
+
+    if (parser->buffer.start < parser->buffer.pointer
+            && parser->buffer.pointer < parser->buffer.last) {
+        size_t size = parser->buffer.last - parser->buffer.pointer;
+        memmove(parser->buffer.start, parser->buffer.pointer, size);
+        parser->buffer.pointer = parser->buffer.start;
+        parser->buffer.last = parser->buffer.start + size;
+    }
+    else if (parser->buffer.pointer == parser->buffer.last) {
+        parser->buffer.pointer = parser->buffer.start;
+        parser->buffer.last = parser->buffer.start;
+    }
+
+    /* Fill the buffer until it has enough characters. */
+
+    while (parser->unread < length)
+    {
+        /* Fill the raw buffer if necessary. */
+
+        if (!first || parser->raw_buffer.pointer == parser->raw_buffer.last) {
+            if (!yaml_parser_update_raw_buffer(parser)) return 0;
+        }
+        first = 0;
+
+        /* Decode the raw buffer. */
+
+        while (parser->raw_buffer.pointer != parser->raw_buffer.last)
+        {
+            unsigned int value = 0, value2 = 0;
+            int incomplete = 0;
+            unsigned char octet;
+            unsigned int width = 0;
+            int low, high;
+            size_t k;
+            size_t raw_unread = parser->raw_buffer.last - parser->raw_buffer.pointer;
+
+            /* Decode the next character. */
+
+            switch (parser->encoding)
+            {
+                case YAML_UTF8_ENCODING:
+
+                    /*
+                     * Decode a UTF-8 character.  Check RFC 3629
+                     * (http://www.ietf.org/rfc/rfc3629.txt) for more details.
+                     *
+                     * The following table (taken from the RFC) is used for
+                     * decoding.
+                     *
+                     *    Char. number range |        UTF-8 octet sequence
+                     *      (hexadecimal)    |              (binary)
+                     *   --------------------+------------------------------------
+                     *   0000 0000-0000 007F | 0xxxxxxx
+                     *   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+                     *   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+                     *   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+                     *
+                     * Additionally, the characters in the range 0xD800-0xDFFF
+                     * are prohibited as they are reserved for use with UTF-16
+                     * surrogate pairs.
+                     */
+
+                    /* Determine the length of the UTF-8 sequence. */
+
+                    octet = parser->raw_buffer.pointer[0];
+                    width = (octet & 0x80) == 0x00 ? 1 :
+                            (octet & 0xE0) == 0xC0 ? 2 :
+                            (octet & 0xF0) == 0xE0 ? 3 :
+                            (octet & 0xF8) == 0xF0 ? 4 : 0;
+
+                    /* Check if the leading octet is valid. */
+
+                    if (!width)
+                        return yaml_parser_set_reader_error(parser,
+                                "invalid leading UTF-8 octet",
+                                parser->offset, octet);
+
+                    /* Check if the raw buffer contains an incomplete character. */
+
+                    if (width > raw_unread) {
+                        if (parser->eof) {
+                            return yaml_parser_set_reader_error(parser,
+                                    "incomplete UTF-8 octet sequence",
+                                    parser->offset, -1);
+                        }
+                        incomplete = 1;
+                        break;
+                    }
+
+                    /* Decode the leading octet. */
+
+                    value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+                            (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+                            (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+                            (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+
+                    /* Check and decode the trailing octets. */
+
+                    for (k = 1; k < width; k ++)
+                    {
+                        octet = parser->raw_buffer.pointer[k];
+
+                        /* Check if the octet is valid. */
+
+                        if ((octet & 0xC0) != 0x80)
+                            return yaml_parser_set_reader_error(parser,
+                                    "invalid trailing UTF-8 octet",
+                                    parser->offset+k, octet);
+
+                        /* Decode the octet. */
+
+                        value = (value << 6) + (octet & 0x3F);
+                    }
+
+                    /* Check the length of the sequence against the value. */
+
+                    if (!((width == 1) ||
+                            (width == 2 && value >= 0x80) ||
+                            (width == 3 && value >= 0x800) ||
+                            (width == 4 && value >= 0x10000)))
+                        return yaml_parser_set_reader_error(parser,
+                                "invalid length of a UTF-8 sequence",
+                                parser->offset, -1);
+
+                    /* Check the range of the value. */
+
+                    if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF)
+                        return yaml_parser_set_reader_error(parser,
+                                "invalid Unicode character",
+                                parser->offset, value);
+
+                    break;
+
+                case YAML_UTF16LE_ENCODING:
+                case YAML_UTF16BE_ENCODING:
+
+                    low = (parser->encoding == YAML_UTF16LE_ENCODING ? 0 : 1);
+                    high = (parser->encoding == YAML_UTF16LE_ENCODING ? 1 : 0);
+
+                    /*
+                     * The UTF-16 encoding is not as simple as one might
+                     * naively think.  Check RFC 2781
+                     * (http://www.ietf.org/rfc/rfc2781.txt).
+                     *
+                     * Normally, two subsequent bytes describe a Unicode
+                     * character.  However a special technique (called a
+                     * surrogate pair) is used for specifying character
+                     * values larger than 0xFFFF.
+                     *
+                     * A surrogate pair consists of two pseudo-characters:
+                     *      high surrogate area (0xD800-0xDBFF)
+                     *      low surrogate area (0xDC00-0xDFFF)
                      *
-                     *  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF) 
-                     *  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF) 
-                     *  W1 = 110110yyyyyyyyyy 
-                     *  W2 = 110111xxxxxxxxxx 
-                     * 
-                     * where U is the character value, W1 is the high surrogate 
-                     * area, W2 is the low surrogate area. 
-                     */ 
- 
-                    /* Check for incomplete UTF-16 character. */ 
- 
-                    if (raw_unread < 2) { 
-                        if (parser->eof) { 
-                            return yaml_parser_set_reader_error(parser, 
-                                    "incomplete UTF-16 character", 
-                                    parser->offset, -1); 
-                        } 
-                        incomplete = 1; 
-                        break; 
-                    } 
- 
-                    /* Get the character. */ 
- 
-                    value = parser->raw_buffer.pointer[low] 
-                        + (parser->raw_buffer.pointer[high] << 8); 
- 
-                    /* Check for unexpected low surrogate area. */ 
- 
-                    if ((value & 0xFC00) == 0xDC00) 
-                        return yaml_parser_set_reader_error(parser, 
-                                "unexpected low surrogate area", 
-                                parser->offset, value); 
- 
-                    /* Check for a high surrogate area. */ 
- 
-                    if ((value & 0xFC00) == 0xD800) { 
- 
-                        width = 4; 
- 
-                        /* Check for incomplete surrogate pair. */ 
- 
-                        if (raw_unread < 4) { 
-                            if (parser->eof) { 
-                                return yaml_parser_set_reader_error(parser, 
-                                        "incomplete UTF-16 surrogate pair", 
-                                        parser->offset, -1); 
-                            } 
-                            incomplete = 1; 
-                            break; 
-                        } 
- 
-                        /* Get the next character. */ 
- 
-                        value2 = parser->raw_buffer.pointer[low+2] 
-                            + (parser->raw_buffer.pointer[high+2] << 8); 
- 
-                        /* Check for a low surrogate area. */ 
- 
-                        if ((value2 & 0xFC00) != 0xDC00) 
-                            return yaml_parser_set_reader_error(parser, 
-                                    "expected low surrogate area", 
-                                    parser->offset+2, value2); 
- 
-                        /* Generate the value of the surrogate pair. */ 
- 
-                        value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF); 
-                    } 
- 
-                    else { 
-                        width = 2; 
-                    } 
- 
-                    break; 
- 
-                default: 
-                    assert(1);      /* Impossible. */ 
-            } 
- 
-            /* Check if the raw buffer contains enough bytes to form a character. */ 
- 
-            if (incomplete) break; 
- 
-            /* 
-             * Check if the character is in the allowed range: 
-             *      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit) 
-             *      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit) 
-             *      | [#x10000-#x10FFFF]                        (32 bit) 
-             */ 
- 
-            if (! (value == 0x09 || value == 0x0A || value == 0x0D 
-                        || (value >= 0x20 && value <= 0x7E) 
-                        || (value == 0x85) || (value >= 0xA0 && value <= 0xD7FF) 
-                        || (value >= 0xE000 && value <= 0xFFFD) 
-                        || (value >= 0x10000 && value <= 0x10FFFF))) 
-                return yaml_parser_set_reader_error(parser, 
-                        "control characters are not allowed", 
-                        parser->offset, value); 
- 
-            /* Move the raw pointers. */ 
- 
-            parser->raw_buffer.pointer += width; 
-            parser->offset += width; 
- 
-            /* Finally put the character into the buffer. */ 
- 
-            /* 0000 0000-0000 007F -> 0xxxxxxx */ 
-            if (value <= 0x7F) { 
-                *(parser->buffer.last++) = value; 
-            } 
-            /* 0000 0080-0000 07FF -> 110xxxxx 10xxxxxx */ 
-            else if (value <= 0x7FF) { 
-                *(parser->buffer.last++) = 0xC0 + (value >> 6); 
-                *(parser->buffer.last++) = 0x80 + (value & 0x3F); 
-            } 
-            /* 0000 0800-0000 FFFF -> 1110xxxx 10xxxxxx 10xxxxxx */ 
-            else if (value <= 0xFFFF) { 
-                *(parser->buffer.last++) = 0xE0 + (value >> 12); 
-                *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F); 
-                *(parser->buffer.last++) = 0x80 + (value & 0x3F); 
-            } 
-            /* 0001 0000-0010 FFFF -> 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */ 
-            else { 
-                *(parser->buffer.last++) = 0xF0 + (value >> 18); 
-                *(parser->buffer.last++) = 0x80 + ((value >> 12) & 0x3F); 
-                *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F); 
-                *(parser->buffer.last++) = 0x80 + (value & 0x3F); 
-            } 
- 
-            parser->unread ++; 
-        } 
- 
-        /* On EOF, put NUL into the buffer and return. */ 
- 
-        if (parser->eof) { 
-            *(parser->buffer.last++) = '\0'; 
-            parser->unread ++; 
-            return 1; 
-        } 
- 
-    } 
- 
+                     * The following formulas are used for decoding
+                     * and encoding characters using surrogate pairs:
+                     *
+                     *  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
+                     *  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
+                     *  W1 = 110110yyyyyyyyyy
+                     *  W2 = 110111xxxxxxxxxx
+                     *
+                     * where U is the character value, W1 is the high surrogate
+                     * area, W2 is the low surrogate area.
+                     */
+
+                    /* Check for incomplete UTF-16 character. */
+
+                    if (raw_unread < 2) {
+                        if (parser->eof) {
+                            return yaml_parser_set_reader_error(parser,
+                                    "incomplete UTF-16 character",
+                                    parser->offset, -1);
+                        }
+                        incomplete = 1;
+                        break;
+                    }
+
+                    /* Get the character. */
+
+                    value = parser->raw_buffer.pointer[low]
+                        + (parser->raw_buffer.pointer[high] << 8);
+
+                    /* Check for unexpected low surrogate area. */
+
+                    if ((value & 0xFC00) == 0xDC00)
+                        return yaml_parser_set_reader_error(parser,
+                                "unexpected low surrogate area",
+                                parser->offset, value);
+
+                    /* Check for a high surrogate area. */
+
+                    if ((value & 0xFC00) == 0xD800) {
+
+                        width = 4;
+
+                        /* Check for incomplete surrogate pair. */
+
+                        if (raw_unread < 4) {
+                            if (parser->eof) {
+                                return yaml_parser_set_reader_error(parser,
+                                        "incomplete UTF-16 surrogate pair",
+                                        parser->offset, -1);
+                            }
+                            incomplete = 1;
+                            break;
+                        }
+
+                        /* Get the next character. */
+
+                        value2 = parser->raw_buffer.pointer[low+2]
+                            + (parser->raw_buffer.pointer[high+2] << 8);
+
+                        /* Check for a low surrogate area. */
+
+                        if ((value2 & 0xFC00) != 0xDC00)
+                            return yaml_parser_set_reader_error(parser,
+                                    "expected low surrogate area",
+                                    parser->offset+2, value2);
+
+                        /* Generate the value of the surrogate pair. */
+
+                        value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF);
+                    }
+
+                    else {
+                        width = 2;
+                    }
+
+                    break;
+
+                default:
+                    assert(1);      /* Impossible. */
+            }
+
+            /* Check if the raw buffer contains enough bytes to form a character. */
+
+            if (incomplete) break;
+
+            /*
+             * Check if the character is in the allowed range:
+             *      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
+             *      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
+             *      | [#x10000-#x10FFFF]                        (32 bit)
+             */
+
+            if (! (value == 0x09 || value == 0x0A || value == 0x0D
+                        || (value >= 0x20 && value <= 0x7E)
+                        || (value == 0x85) || (value >= 0xA0 && value <= 0xD7FF)
+                        || (value >= 0xE000 && value <= 0xFFFD)
+                        || (value >= 0x10000 && value <= 0x10FFFF)))
+                return yaml_parser_set_reader_error(parser,
+                        "control characters are not allowed",
+                        parser->offset, value);
+
+            /* Move the raw pointers. */
+
+            parser->raw_buffer.pointer += width;
+            parser->offset += width;
+
+            /* Finally put the character into the buffer. */
+
+            /* 0000 0000-0000 007F -> 0xxxxxxx */
+            if (value <= 0x7F) {
+                *(parser->buffer.last++) = value;
+            }
+            /* 0000 0080-0000 07FF -> 110xxxxx 10xxxxxx */
+            else if (value <= 0x7FF) {
+                *(parser->buffer.last++) = 0xC0 + (value >> 6);
+                *(parser->buffer.last++) = 0x80 + (value & 0x3F);
+            }
+            /* 0000 0800-0000 FFFF -> 1110xxxx 10xxxxxx 10xxxxxx */
+            else if (value <= 0xFFFF) {
+                *(parser->buffer.last++) = 0xE0 + (value >> 12);
+                *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F);
+                *(parser->buffer.last++) = 0x80 + (value & 0x3F);
+            }
+            /* 0001 0000-0010 FFFF -> 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
+            else {
+                *(parser->buffer.last++) = 0xF0 + (value >> 18);
+                *(parser->buffer.last++) = 0x80 + ((value >> 12) & 0x3F);
+                *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F);
+                *(parser->buffer.last++) = 0x80 + (value & 0x3F);
+            }
+
+            parser->unread ++;
+        }
+
+        /* On EOF, put NUL into the buffer and return. */
+
+        if (parser->eof) {
+            *(parser->buffer.last++) = '\0';
+            parser->unread ++;
+            return 1;
+        }
+
+    }
+
     if (parser->offset >= MAX_FILE_SIZE) {
-        return yaml_parser_set_reader_error(parser, "input is too long", 
+        return yaml_parser_set_reader_error(parser, "input is too long",
             parser->offset, -1);
     }
- 
-    return 1; 
-} 
+
+    return 1;
+}
diff --git a/contrib/libs/yaml/src/scanner.c b/contrib/libs/yaml/src/scanner.c
index e252398e5c..c6b4987656 100644
--- a/contrib/libs/yaml/src/scanner.c
+++ b/contrib/libs/yaml/src/scanner.c
@@ -1,3451 +1,3451 @@
- 
-/* 
- * Introduction 
- * ************ 
- * 
- * The following notes assume that you are familiar with the YAML specification 
- * (http://yaml.org/spec/cvs/current.html).  We mostly follow it, although in 
- * some cases we are less restrictive that it requires. 
- * 
- * The process of transforming a YAML stream into a sequence of events is 
- * divided on two steps: Scanning and Parsing. 
- * 
- * The Scanner transforms the input stream into a sequence of tokens, while the 
- * parser transform the sequence of tokens produced by the Scanner into a 
- * sequence of parsing events. 
- * 
- * The Scanner is rather clever and complicated. The Parser, on the contrary, 
- * is a straightforward implementation of a recursive-descendant parser (or, 
- * LL(1) parser, as it is usually called). 
- * 
- * Actually there are two issues of Scanning that might be called "clever", the 
- * rest is quite straightforward.  The issues are "block collection start" and 
- * "simple keys".  Both issues are explained below in details. 
- * 
- * Here the Scanning step is explained and implemented.  We start with the list 
- * of all the tokens produced by the Scanner together with short descriptions. 
- * 
- * Now, tokens: 
- * 
- *      STREAM-START(encoding)          # The stream start. 
- *      STREAM-END                      # The stream end. 
- *      VERSION-DIRECTIVE(major,minor)  # The '%YAML' directive. 
- *      TAG-DIRECTIVE(handle,prefix)    # The '%TAG' directive. 
- *      DOCUMENT-START                  # '---' 
- *      DOCUMENT-END                    # '...' 
- *      BLOCK-SEQUENCE-START            # Indentation increase denoting a block 
- *      BLOCK-MAPPING-START             # sequence or a block mapping. 
- *      BLOCK-END                       # Indentation decrease. 
- *      FLOW-SEQUENCE-START             # '[' 
- *      FLOW-SEQUENCE-END               # ']' 
+
+/*
+ * Introduction
+ * ************
+ *
+ * The following notes assume that you are familiar with the YAML specification
+ * (http://yaml.org/spec/cvs/current.html).  We mostly follow it, although in
+ * some cases we are less restrictive that it requires.
+ *
+ * The process of transforming a YAML stream into a sequence of events is
+ * divided on two steps: Scanning and Parsing.
+ *
+ * The Scanner transforms the input stream into a sequence of tokens, while the
+ * parser transform the sequence of tokens produced by the Scanner into a
+ * sequence of parsing events.
+ *
+ * The Scanner is rather clever and complicated. The Parser, on the contrary,
+ * is a straightforward implementation of a recursive-descendant parser (or,
+ * LL(1) parser, as it is usually called).
+ *
+ * Actually there are two issues of Scanning that might be called "clever", the
+ * rest is quite straightforward.  The issues are "block collection start" and
+ * "simple keys".  Both issues are explained below in details.
+ *
+ * Here the Scanning step is explained and implemented.  We start with the list
+ * of all the tokens produced by the Scanner together with short descriptions.
+ *
+ * Now, tokens:
+ *
+ *      STREAM-START(encoding)          # The stream start.
+ *      STREAM-END                      # The stream end.
+ *      VERSION-DIRECTIVE(major,minor)  # The '%YAML' directive.
+ *      TAG-DIRECTIVE(handle,prefix)    # The '%TAG' directive.
+ *      DOCUMENT-START                  # '---'
+ *      DOCUMENT-END                    # '...'
+ *      BLOCK-SEQUENCE-START            # Indentation increase denoting a block
+ *      BLOCK-MAPPING-START             # sequence or a block mapping.
+ *      BLOCK-END                       # Indentation decrease.
+ *      FLOW-SEQUENCE-START             # '['
+ *      FLOW-SEQUENCE-END               # ']'
  *      FLOW-MAPPING-START              # '{'
  *      FLOW-MAPPING-END                # '}'
- *      BLOCK-ENTRY                     # '-' 
- *      FLOW-ENTRY                      # ',' 
- *      KEY                             # '?' or nothing (simple keys). 
- *      VALUE                           # ':' 
- *      ALIAS(anchor)                   # '*anchor' 
- *      ANCHOR(anchor)                  # '&anchor' 
- *      TAG(handle,suffix)              # '!handle!suffix' 
- *      SCALAR(value,style)             # A scalar. 
- * 
- * The following two tokens are "virtual" tokens denoting the beginning and the 
- * end of the stream: 
- * 
- *      STREAM-START(encoding) 
- *      STREAM-END 
- * 
- * We pass the information about the input stream encoding with the 
- * STREAM-START token. 
- * 
- * The next two tokens are responsible for tags: 
- * 
- *      VERSION-DIRECTIVE(major,minor) 
- *      TAG-DIRECTIVE(handle,prefix) 
- * 
- * Example: 
- * 
- *      %YAML   1.1 
- *      %TAG    !   !foo 
- *      %TAG    !yaml!  tag:yaml.org,2002: 
- *      --- 
- * 
+ *      BLOCK-ENTRY                     # '-'
+ *      FLOW-ENTRY                      # ','
+ *      KEY                             # '?' or nothing (simple keys).
+ *      VALUE                           # ':'
+ *      ALIAS(anchor)                   # '*anchor'
+ *      ANCHOR(anchor)                  # '&anchor'
+ *      TAG(handle,suffix)              # '!handle!suffix'
+ *      SCALAR(value,style)             # A scalar.
+ *
+ * The following two tokens are "virtual" tokens denoting the beginning and the
+ * end of the stream:
+ *
+ *      STREAM-START(encoding)
+ *      STREAM-END
+ *
+ * We pass the information about the input stream encoding with the
+ * STREAM-START token.
+ *
+ * The next two tokens are responsible for tags:
+ *
+ *      VERSION-DIRECTIVE(major,minor)
+ *      TAG-DIRECTIVE(handle,prefix)
+ *
+ * Example:
+ *
+ *      %YAML   1.1
+ *      %TAG    !   !foo
+ *      %TAG    !yaml!  tag:yaml.org,2002:
+ *      ---
+ *
  * The corresponding sequence of tokens:
- * 
- *      STREAM-START(utf-8) 
- *      VERSION-DIRECTIVE(1,1) 
- *      TAG-DIRECTIVE("!","!foo") 
- *      TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:") 
- *      DOCUMENT-START 
- *      STREAM-END 
- * 
- * Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole 
- * line. 
- * 
- * The document start and end indicators are represented by: 
- * 
- *      DOCUMENT-START 
- *      DOCUMENT-END 
- * 
- * Note that if a YAML stream contains an implicit document (without '---' 
- * and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be 
- * produced. 
- * 
- * In the following examples, we present whole documents together with the 
- * produced tokens. 
- * 
- *      1. An implicit document: 
- * 
- *          'a scalar' 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          SCALAR("a scalar",single-quoted) 
- *          STREAM-END 
- * 
- *      2. An explicit document: 
- * 
- *          --- 
- *          'a scalar' 
- *          ... 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          DOCUMENT-START 
- *          SCALAR("a scalar",single-quoted) 
- *          DOCUMENT-END 
- *          STREAM-END 
- * 
- *      3. Several documents in a stream: 
- * 
- *          'a scalar' 
- *          --- 
- *          'another scalar' 
- *          --- 
- *          'yet another scalar' 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          SCALAR("a scalar",single-quoted) 
- *          DOCUMENT-START 
- *          SCALAR("another scalar",single-quoted) 
- *          DOCUMENT-START 
- *          SCALAR("yet another scalar",single-quoted) 
- *          STREAM-END 
- * 
- * We have already introduced the SCALAR token above.  The following tokens are 
- * used to describe aliases, anchors, tag, and scalars: 
- * 
- *      ALIAS(anchor) 
- *      ANCHOR(anchor) 
- *      TAG(handle,suffix) 
- *      SCALAR(value,style) 
- * 
- * The following series of examples illustrate the usage of these tokens: 
- * 
- *      1. A recursive sequence: 
- * 
- *          &A [ *A ] 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          ANCHOR("A") 
- *          FLOW-SEQUENCE-START 
- *          ALIAS("A") 
- *          FLOW-SEQUENCE-END 
- *          STREAM-END 
- * 
- *      2. A tagged scalar: 
- * 
- *          !!float "3.14"  # A good approximation. 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          TAG("!!","float") 
- *          SCALAR("3.14",double-quoted) 
- *          STREAM-END 
- * 
- *      3. Various scalar styles: 
- * 
- *          --- # Implicit empty plain scalars do not produce tokens. 
- *          --- a plain scalar 
- *          --- 'a single-quoted scalar' 
- *          --- "a double-quoted scalar" 
- *          --- |- 
- *            a literal scalar 
- *          --- >- 
- *            a folded 
- *            scalar 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          DOCUMENT-START 
- *          DOCUMENT-START 
- *          SCALAR("a plain scalar",plain) 
- *          DOCUMENT-START 
- *          SCALAR("a single-quoted scalar",single-quoted) 
- *          DOCUMENT-START 
- *          SCALAR("a double-quoted scalar",double-quoted) 
- *          DOCUMENT-START 
- *          SCALAR("a literal scalar",literal) 
- *          DOCUMENT-START 
- *          SCALAR("a folded scalar",folded) 
- *          STREAM-END 
- * 
- * Now it's time to review collection-related tokens. We will start with 
- * flow collections: 
- * 
- *      FLOW-SEQUENCE-START 
- *      FLOW-SEQUENCE-END 
- *      FLOW-MAPPING-START 
- *      FLOW-MAPPING-END 
- *      FLOW-ENTRY 
- *      KEY 
- *      VALUE 
- * 
- * The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and 
- * FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}' 
- * correspondingly.  FLOW-ENTRY represent the ',' indicator.  Finally the 
- * indicators '?' and ':', which are used for denoting mapping keys and values, 
- * are represented by the KEY and VALUE tokens. 
- * 
- * The following examples show flow collections: 
- * 
- *      1. A flow sequence: 
- * 
- *          [item 1, item 2, item 3] 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          FLOW-SEQUENCE-START 
- *          SCALAR("item 1",plain) 
- *          FLOW-ENTRY 
- *          SCALAR("item 2",plain) 
- *          FLOW-ENTRY 
- *          SCALAR("item 3",plain) 
- *          FLOW-SEQUENCE-END 
- *          STREAM-END 
- * 
- *      2. A flow mapping: 
- * 
- *          { 
- *              a simple key: a value,  # Note that the KEY token is produced. 
- *              ? a complex key: another value, 
- *          } 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          FLOW-MAPPING-START 
- *          KEY 
- *          SCALAR("a simple key",plain) 
- *          VALUE 
- *          SCALAR("a value",plain) 
- *          FLOW-ENTRY 
- *          KEY 
- *          SCALAR("a complex key",plain) 
- *          VALUE 
- *          SCALAR("another value",plain) 
- *          FLOW-ENTRY 
- *          FLOW-MAPPING-END 
- *          STREAM-END 
- * 
- * A simple key is a key which is not denoted by the '?' indicator.  Note that 
- * the Scanner still produce the KEY token whenever it encounters a simple key. 
- * 
- * For scanning block collections, the following tokens are used (note that we 
- * repeat KEY and VALUE here): 
- * 
- *      BLOCK-SEQUENCE-START 
- *      BLOCK-MAPPING-START 
- *      BLOCK-END 
- *      BLOCK-ENTRY 
- *      KEY 
- *      VALUE 
- * 
- * The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation 
- * increase that precedes a block collection (cf. the INDENT token in Python). 
- * The token BLOCK-END denote indentation decrease that ends a block collection 
- * (cf. the DEDENT token in Python).  However YAML has some syntax pecularities 
- * that makes detections of these tokens more complex. 
- * 
- * The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators 
- * '-', '?', and ':' correspondingly. 
- * 
- * The following examples show how the tokens BLOCK-SEQUENCE-START, 
- * BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner: 
- * 
- *      1. Block sequences: 
- * 
- *          - item 1 
- *          - item 2 
- *          - 
- *            - item 3.1 
- *            - item 3.2 
- *          - 
- *            key 1: value 1 
- *            key 2: value 2 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          BLOCK-SEQUENCE-START 
- *          BLOCK-ENTRY 
- *          SCALAR("item 1",plain) 
- *          BLOCK-ENTRY 
- *          SCALAR("item 2",plain) 
- *          BLOCK-ENTRY 
- *          BLOCK-SEQUENCE-START 
- *          BLOCK-ENTRY 
- *          SCALAR("item 3.1",plain) 
- *          BLOCK-ENTRY 
- *          SCALAR("item 3.2",plain) 
- *          BLOCK-END 
- *          BLOCK-ENTRY 
- *          BLOCK-MAPPING-START 
- *          KEY 
- *          SCALAR("key 1",plain) 
- *          VALUE 
- *          SCALAR("value 1",plain) 
- *          KEY 
- *          SCALAR("key 2",plain) 
- *          VALUE 
- *          SCALAR("value 2",plain) 
- *          BLOCK-END 
- *          BLOCK-END 
- *          STREAM-END 
- * 
- *      2. Block mappings: 
- * 
- *          a simple key: a value   # The KEY token is produced here. 
- *          ? a complex key 
- *          : another value 
- *          a mapping: 
- *            key 1: value 1 
- *            key 2: value 2 
- *          a sequence: 
- *            - item 1 
- *            - item 2 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          BLOCK-MAPPING-START 
- *          KEY 
- *          SCALAR("a simple key",plain) 
- *          VALUE 
- *          SCALAR("a value",plain) 
- *          KEY 
- *          SCALAR("a complex key",plain) 
- *          VALUE 
- *          SCALAR("another value",plain) 
- *          KEY 
- *          SCALAR("a mapping",plain) 
+ *
+ *      STREAM-START(utf-8)
+ *      VERSION-DIRECTIVE(1,1)
+ *      TAG-DIRECTIVE("!","!foo")
+ *      TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:")
+ *      DOCUMENT-START
+ *      STREAM-END
+ *
+ * Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole
+ * line.
+ *
+ * The document start and end indicators are represented by:
+ *
+ *      DOCUMENT-START
+ *      DOCUMENT-END
+ *
+ * Note that if a YAML stream contains an implicit document (without '---'
+ * and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be
+ * produced.
+ *
+ * In the following examples, we present whole documents together with the
+ * produced tokens.
+ *
+ *      1. An implicit document:
+ *
+ *          'a scalar'
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          SCALAR("a scalar",single-quoted)
+ *          STREAM-END
+ *
+ *      2. An explicit document:
+ *
+ *          ---
+ *          'a scalar'
+ *          ...
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          DOCUMENT-START
+ *          SCALAR("a scalar",single-quoted)
+ *          DOCUMENT-END
+ *          STREAM-END
+ *
+ *      3. Several documents in a stream:
+ *
+ *          'a scalar'
+ *          ---
+ *          'another scalar'
+ *          ---
+ *          'yet another scalar'
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          SCALAR("a scalar",single-quoted)
+ *          DOCUMENT-START
+ *          SCALAR("another scalar",single-quoted)
+ *          DOCUMENT-START
+ *          SCALAR("yet another scalar",single-quoted)
+ *          STREAM-END
+ *
+ * We have already introduced the SCALAR token above.  The following tokens are
+ * used to describe aliases, anchors, tag, and scalars:
+ *
+ *      ALIAS(anchor)
+ *      ANCHOR(anchor)
+ *      TAG(handle,suffix)
+ *      SCALAR(value,style)
+ *
+ * The following series of examples illustrate the usage of these tokens:
+ *
+ *      1. A recursive sequence:
+ *
+ *          &A [ *A ]
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          ANCHOR("A")
+ *          FLOW-SEQUENCE-START
+ *          ALIAS("A")
+ *          FLOW-SEQUENCE-END
+ *          STREAM-END
+ *
+ *      2. A tagged scalar:
+ *
+ *          !!float "3.14"  # A good approximation.
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          TAG("!!","float")
+ *          SCALAR("3.14",double-quoted)
+ *          STREAM-END
+ *
+ *      3. Various scalar styles:
+ *
+ *          --- # Implicit empty plain scalars do not produce tokens.
+ *          --- a plain scalar
+ *          --- 'a single-quoted scalar'
+ *          --- "a double-quoted scalar"
+ *          --- |-
+ *            a literal scalar
+ *          --- >-
+ *            a folded
+ *            scalar
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          DOCUMENT-START
+ *          DOCUMENT-START
+ *          SCALAR("a plain scalar",plain)
+ *          DOCUMENT-START
+ *          SCALAR("a single-quoted scalar",single-quoted)
+ *          DOCUMENT-START
+ *          SCALAR("a double-quoted scalar",double-quoted)
+ *          DOCUMENT-START
+ *          SCALAR("a literal scalar",literal)
+ *          DOCUMENT-START
+ *          SCALAR("a folded scalar",folded)
+ *          STREAM-END
+ *
+ * Now it's time to review collection-related tokens. We will start with
+ * flow collections:
+ *
+ *      FLOW-SEQUENCE-START
+ *      FLOW-SEQUENCE-END
+ *      FLOW-MAPPING-START
+ *      FLOW-MAPPING-END
+ *      FLOW-ENTRY
+ *      KEY
+ *      VALUE
+ *
+ * The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and
+ * FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}'
+ * correspondingly.  FLOW-ENTRY represent the ',' indicator.  Finally the
+ * indicators '?' and ':', which are used for denoting mapping keys and values,
+ * are represented by the KEY and VALUE tokens.
+ *
+ * The following examples show flow collections:
+ *
+ *      1. A flow sequence:
+ *
+ *          [item 1, item 2, item 3]
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          FLOW-SEQUENCE-START
+ *          SCALAR("item 1",plain)
+ *          FLOW-ENTRY
+ *          SCALAR("item 2",plain)
+ *          FLOW-ENTRY
+ *          SCALAR("item 3",plain)
+ *          FLOW-SEQUENCE-END
+ *          STREAM-END
+ *
+ *      2. A flow mapping:
+ *
+ *          {
+ *              a simple key: a value,  # Note that the KEY token is produced.
+ *              ? a complex key: another value,
+ *          }
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          FLOW-MAPPING-START
+ *          KEY
+ *          SCALAR("a simple key",plain)
+ *          VALUE
+ *          SCALAR("a value",plain)
+ *          FLOW-ENTRY
+ *          KEY
+ *          SCALAR("a complex key",plain)
+ *          VALUE
+ *          SCALAR("another value",plain)
+ *          FLOW-ENTRY
+ *          FLOW-MAPPING-END
+ *          STREAM-END
+ *
+ * A simple key is a key which is not denoted by the '?' indicator.  Note that
+ * the Scanner still produce the KEY token whenever it encounters a simple key.
+ *
+ * For scanning block collections, the following tokens are used (note that we
+ * repeat KEY and VALUE here):
+ *
+ *      BLOCK-SEQUENCE-START
+ *      BLOCK-MAPPING-START
+ *      BLOCK-END
+ *      BLOCK-ENTRY
+ *      KEY
+ *      VALUE
+ *
+ * The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation
+ * increase that precedes a block collection (cf. the INDENT token in Python).
+ * The token BLOCK-END denote indentation decrease that ends a block collection
+ * (cf. the DEDENT token in Python).  However YAML has some syntax pecularities
+ * that makes detections of these tokens more complex.
+ *
+ * The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators
+ * '-', '?', and ':' correspondingly.
+ *
+ * The following examples show how the tokens BLOCK-SEQUENCE-START,
+ * BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner:
+ *
+ *      1. Block sequences:
+ *
+ *          - item 1
+ *          - item 2
+ *          -
+ *            - item 3.1
+ *            - item 3.2
+ *          -
+ *            key 1: value 1
+ *            key 2: value 2
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          BLOCK-SEQUENCE-START
+ *          BLOCK-ENTRY
+ *          SCALAR("item 1",plain)
+ *          BLOCK-ENTRY
+ *          SCALAR("item 2",plain)
+ *          BLOCK-ENTRY
+ *          BLOCK-SEQUENCE-START
+ *          BLOCK-ENTRY
+ *          SCALAR("item 3.1",plain)
+ *          BLOCK-ENTRY
+ *          SCALAR("item 3.2",plain)
+ *          BLOCK-END
+ *          BLOCK-ENTRY
+ *          BLOCK-MAPPING-START
+ *          KEY
+ *          SCALAR("key 1",plain)
+ *          VALUE
+ *          SCALAR("value 1",plain)
+ *          KEY
+ *          SCALAR("key 2",plain)
+ *          VALUE
+ *          SCALAR("value 2",plain)
+ *          BLOCK-END
+ *          BLOCK-END
+ *          STREAM-END
+ *
+ *      2. Block mappings:
+ *
+ *          a simple key: a value   # The KEY token is produced here.
+ *          ? a complex key
+ *          : another value
+ *          a mapping:
+ *            key 1: value 1
+ *            key 2: value 2
+ *          a sequence:
+ *            - item 1
+ *            - item 2
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          BLOCK-MAPPING-START
+ *          KEY
+ *          SCALAR("a simple key",plain)
+ *          VALUE
+ *          SCALAR("a value",plain)
+ *          KEY
+ *          SCALAR("a complex key",plain)
+ *          VALUE
+ *          SCALAR("another value",plain)
+ *          KEY
+ *          SCALAR("a mapping",plain)
+ *          VALUE
+ *          BLOCK-MAPPING-START
+ *          KEY
+ *          SCALAR("key 1",plain)
+ *          VALUE
+ *          SCALAR("value 1",plain)
+ *          KEY
+ *          SCALAR("key 2",plain)
+ *          VALUE
+ *          SCALAR("value 2",plain)
+ *          BLOCK-END
+ *          KEY
+ *          SCALAR("a sequence",plain)
+ *          VALUE
+ *          BLOCK-SEQUENCE-START
+ *          BLOCK-ENTRY
+ *          SCALAR("item 1",plain)
+ *          BLOCK-ENTRY
+ *          SCALAR("item 2",plain)
+ *          BLOCK-END
+ *          BLOCK-END
+ *          STREAM-END
+ *
+ * YAML does not always require to start a new block collection from a new
+ * line.  If the current line contains only '-', '?', and ':' indicators, a new
+ * block collection may start at the current line.  The following examples
+ * illustrate this case:
+ *
+ *      1. Collections in a sequence:
+ *
+ *          - - item 1
+ *            - item 2
+ *          - key 1: value 1
+ *            key 2: value 2
+ *          - ? complex key
+ *            : complex value
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          BLOCK-SEQUENCE-START
+ *          BLOCK-ENTRY
+ *          BLOCK-SEQUENCE-START
+ *          BLOCK-ENTRY
+ *          SCALAR("item 1",plain)
+ *          BLOCK-ENTRY
+ *          SCALAR("item 2",plain)
+ *          BLOCK-END
+ *          BLOCK-ENTRY
+ *          BLOCK-MAPPING-START
+ *          KEY
+ *          SCALAR("key 1",plain)
+ *          VALUE
+ *          SCALAR("value 1",plain)
+ *          KEY
+ *          SCALAR("key 2",plain)
+ *          VALUE
+ *          SCALAR("value 2",plain)
+ *          BLOCK-END
+ *          BLOCK-ENTRY
+ *          BLOCK-MAPPING-START
+ *          KEY
+ *          SCALAR("complex key")
+ *          VALUE
+ *          SCALAR("complex value")
+ *          BLOCK-END
+ *          BLOCK-END
+ *          STREAM-END
+ *
+ *      2. Collections in a mapping:
+ *
+ *          ? a sequence
+ *          : - item 1
+ *            - item 2
+ *          ? a mapping
+ *          : key 1: value 1
+ *            key 2: value 2
+ *
+ *      Tokens:
+ *
+ *          STREAM-START(utf-8)
+ *          BLOCK-MAPPING-START
+ *          KEY
+ *          SCALAR("a sequence",plain)
+ *          VALUE
+ *          BLOCK-SEQUENCE-START
+ *          BLOCK-ENTRY
+ *          SCALAR("item 1",plain)
+ *          BLOCK-ENTRY
+ *          SCALAR("item 2",plain)
+ *          BLOCK-END
+ *          KEY
+ *          SCALAR("a mapping",plain)
+ *          VALUE
+ *          BLOCK-MAPPING-START
+ *          KEY
+ *          SCALAR("key 1",plain)
  *          VALUE
- *          BLOCK-MAPPING-START 
- *          KEY 
- *          SCALAR("key 1",plain) 
- *          VALUE 
- *          SCALAR("value 1",plain) 
- *          KEY 
- *          SCALAR("key 2",plain) 
- *          VALUE 
- *          SCALAR("value 2",plain) 
- *          BLOCK-END 
- *          KEY 
- *          SCALAR("a sequence",plain) 
- *          VALUE 
- *          BLOCK-SEQUENCE-START 
- *          BLOCK-ENTRY 
- *          SCALAR("item 1",plain) 
- *          BLOCK-ENTRY 
- *          SCALAR("item 2",plain) 
- *          BLOCK-END 
- *          BLOCK-END 
- *          STREAM-END 
- * 
- * YAML does not always require to start a new block collection from a new 
- * line.  If the current line contains only '-', '?', and ':' indicators, a new 
- * block collection may start at the current line.  The following examples 
- * illustrate this case: 
- * 
- *      1. Collections in a sequence: 
- * 
- *          - - item 1 
- *            - item 2 
- *          - key 1: value 1 
- *            key 2: value 2 
- *          - ? complex key 
- *            : complex value 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          BLOCK-SEQUENCE-START 
- *          BLOCK-ENTRY 
- *          BLOCK-SEQUENCE-START 
- *          BLOCK-ENTRY 
- *          SCALAR("item 1",plain) 
- *          BLOCK-ENTRY 
- *          SCALAR("item 2",plain) 
- *          BLOCK-END 
- *          BLOCK-ENTRY 
- *          BLOCK-MAPPING-START 
- *          KEY 
- *          SCALAR("key 1",plain) 
- *          VALUE 
- *          SCALAR("value 1",plain) 
- *          KEY 
- *          SCALAR("key 2",plain) 
- *          VALUE 
- *          SCALAR("value 2",plain) 
- *          BLOCK-END 
- *          BLOCK-ENTRY 
- *          BLOCK-MAPPING-START 
- *          KEY 
- *          SCALAR("complex key") 
- *          VALUE 
- *          SCALAR("complex value") 
- *          BLOCK-END 
- *          BLOCK-END 
- *          STREAM-END 
- * 
- *      2. Collections in a mapping: 
- * 
- *          ? a sequence 
- *          : - item 1 
- *            - item 2 
- *          ? a mapping 
- *          : key 1: value 1 
- *            key 2: value 2 
- * 
- *      Tokens: 
- * 
- *          STREAM-START(utf-8) 
- *          BLOCK-MAPPING-START 
- *          KEY 
- *          SCALAR("a sequence",plain) 
- *          VALUE 
- *          BLOCK-SEQUENCE-START 
- *          BLOCK-ENTRY 
- *          SCALAR("item 1",plain) 
- *          BLOCK-ENTRY 
- *          SCALAR("item 2",plain) 
- *          BLOCK-END 
- *          KEY 
- *          SCALAR("a mapping",plain) 
- *          VALUE 
- *          BLOCK-MAPPING-START 
- *          KEY 
- *          SCALAR("key 1",plain) 
- *          VALUE 
- *          SCALAR("value 1",plain) 
- *          KEY 
- *          SCALAR("key 2",plain) 
- *          VALUE 
- *          SCALAR("value 2",plain) 
- *          BLOCK-END 
- *          BLOCK-END 
- *          STREAM-END 
- * 
- * YAML also permits non-indented sequences if they are included into a block 
- * mapping.  In this case, the token BLOCK-SEQUENCE-START is not produced: 
- * 
- *      key: 
- *      - item 1    # BLOCK-SEQUENCE-START is NOT produced here. 
- *      - item 2 
- * 
- * Tokens: 
- * 
- *      STREAM-START(utf-8) 
- *      BLOCK-MAPPING-START 
- *      KEY 
- *      SCALAR("key",plain) 
- *      VALUE 
- *      BLOCK-ENTRY 
- *      SCALAR("item 1",plain) 
- *      BLOCK-ENTRY 
- *      SCALAR("item 2",plain) 
- *      BLOCK-END 
- */ 
- 
-#include "yaml_private.h" 
- 
-/* 
- * Ensure that the buffer contains the required number of characters. 
- * Return 1 on success, 0 on failure (reader error or memory error). 
- */ 
- 
-#define CACHE(parser,length)                                                    \ 
-    (parser->unread >= (length)                                                 \ 
-        ? 1                                                                     \ 
-        : yaml_parser_update_buffer(parser, (length))) 
- 
-/* 
- * Advance the buffer pointer. 
- */ 
- 
-#define SKIP(parser)                                                            \ 
-     (parser->mark.index ++,                                                    \ 
-      parser->mark.column ++,                                                   \ 
-      parser->unread --,                                                        \ 
-      parser->buffer.pointer += WIDTH(parser->buffer)) 
- 
-#define SKIP_LINE(parser)                                                       \ 
-     (IS_CRLF(parser->buffer) ?                                                 \ 
-      (parser->mark.index += 2,                                                 \ 
-       parser->mark.column = 0,                                                 \ 
-       parser->mark.line ++,                                                    \ 
-       parser->unread -= 2,                                                     \ 
-       parser->buffer.pointer += 2) :                                           \ 
-      IS_BREAK(parser->buffer) ?                                                \ 
-      (parser->mark.index ++,                                                   \ 
-       parser->mark.column = 0,                                                 \ 
-       parser->mark.line ++,                                                    \ 
-       parser->unread --,                                                       \ 
-       parser->buffer.pointer += WIDTH(parser->buffer)) : 0) 
- 
-/* 
- * Copy a character to a string buffer and advance pointers. 
- */ 
- 
-#define READ(parser,string)                                                     \ 
-     (STRING_EXTEND(parser,string) ?                                            \ 
-         (COPY(string,parser->buffer),                                          \ 
-          parser->mark.index ++,                                                \ 
-          parser->mark.column ++,                                               \ 
-          parser->unread --,                                                    \ 
-          1) : 0) 
- 
-/* 
- * Copy a line break character to a string buffer and advance pointers. 
- */ 
- 
-#define READ_LINE(parser,string)                                                \ 
-    (STRING_EXTEND(parser,string) ?                                             \ 
-    (((CHECK_AT(parser->buffer,'\r',0)                                          \ 
-       && CHECK_AT(parser->buffer,'\n',1)) ?        /* CR LF -> LF */           \ 
-     (*((string).pointer++) = (yaml_char_t) '\n',                               \ 
-      parser->buffer.pointer += 2,                                              \ 
-      parser->mark.index += 2,                                                  \ 
-      parser->mark.column = 0,                                                  \ 
-      parser->mark.line ++,                                                     \ 
-      parser->unread -= 2) :                                                    \ 
-     (CHECK_AT(parser->buffer,'\r',0)                                           \ 
-      || CHECK_AT(parser->buffer,'\n',0)) ?         /* CR|LF -> LF */           \ 
-     (*((string).pointer++) = (yaml_char_t) '\n',                               \ 
-      parser->buffer.pointer ++,                                                \ 
-      parser->mark.index ++,                                                    \ 
-      parser->mark.column = 0,                                                  \ 
-      parser->mark.line ++,                                                     \ 
-      parser->unread --) :                                                      \ 
-     (CHECK_AT(parser->buffer,'\xC2',0)                                         \ 
-      && CHECK_AT(parser->buffer,'\x85',1)) ?       /* NEL -> LF */             \ 
-     (*((string).pointer++) = (yaml_char_t) '\n',                               \ 
-      parser->buffer.pointer += 2,                                              \ 
-      parser->mark.index ++,                                                    \ 
-      parser->mark.column = 0,                                                  \ 
-      parser->mark.line ++,                                                     \ 
-      parser->unread --) :                                                      \ 
-     (CHECK_AT(parser->buffer,'\xE2',0) &&                                      \ 
-      CHECK_AT(parser->buffer,'\x80',1) &&                                      \ 
-      (CHECK_AT(parser->buffer,'\xA8',2) ||                                     \ 
-       CHECK_AT(parser->buffer,'\xA9',2))) ?        /* LS|PS -> LS|PS */        \ 
-     (*((string).pointer++) = *(parser->buffer.pointer++),                      \ 
-      *((string).pointer++) = *(parser->buffer.pointer++),                      \ 
-      *((string).pointer++) = *(parser->buffer.pointer++),                      \ 
-      parser->mark.index ++,                                                    \ 
-      parser->mark.column = 0,                                                  \ 
-      parser->mark.line ++,                                                     \ 
-      parser->unread --) : 0),                                                  \ 
-    1) : 0) 
- 
-/* 
- * Public API declarations. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token); 
- 
-/* 
- * Error handling. 
- */ 
- 
-static int 
-yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context, 
-        yaml_mark_t context_mark, const char *problem); 
- 
-/* 
- * High-level token API. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_fetch_more_tokens(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_next_token(yaml_parser_t *parser); 
- 
-/* 
- * Potential simple keys. 
- */ 
- 
-static int 
-yaml_parser_stale_simple_keys(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_save_simple_key(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_remove_simple_key(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_increase_flow_level(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_decrease_flow_level(yaml_parser_t *parser); 
- 
-/* 
- * Indentation treatment. 
- */ 
- 
-static int 
-yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column, 
-        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark); 
- 
-static int 
-yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column); 
- 
-/* 
- * Token fetchers. 
- */ 
- 
-static int 
-yaml_parser_fetch_stream_start(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_stream_end(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_directive(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_document_indicator(yaml_parser_t *parser, 
-        yaml_token_type_t type); 
- 
-static int 
-yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser, 
-        yaml_token_type_t type); 
- 
-static int 
-yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser, 
-        yaml_token_type_t type); 
- 
-static int 
-yaml_parser_fetch_flow_entry(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_block_entry(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_key(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_value(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type); 
- 
-static int 
-yaml_parser_fetch_tag(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal); 
- 
-static int 
-yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single); 
- 
-static int 
-yaml_parser_fetch_plain_scalar(yaml_parser_t *parser); 
- 
-/* 
- * Token scanners. 
- */ 
- 
-static int 
-yaml_parser_scan_to_next_token(yaml_parser_t *parser); 
- 
-static int 
-yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token); 
- 
-static int 
-yaml_parser_scan_directive_name(yaml_parser_t *parser, 
-        yaml_mark_t start_mark, yaml_char_t **name); 
- 
-static int 
-yaml_parser_scan_version_directive_value(yaml_parser_t *parser, 
-        yaml_mark_t start_mark, int *major, int *minor); 
- 
-static int 
-yaml_parser_scan_version_directive_number(yaml_parser_t *parser, 
-        yaml_mark_t start_mark, int *number); 
- 
-static int 
-yaml_parser_scan_tag_directive_value(yaml_parser_t *parser, 
-        yaml_mark_t mark, yaml_char_t **handle, yaml_char_t **prefix); 
- 
-static int 
-yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token, 
-        yaml_token_type_t type); 
- 
-static int 
-yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token); 
- 
-static int 
-yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive, 
-        yaml_mark_t start_mark, yaml_char_t **handle); 
- 
-static int 
+ *          SCALAR("value 1",plain)
+ *          KEY
+ *          SCALAR("key 2",plain)
+ *          VALUE
+ *          SCALAR("value 2",plain)
+ *          BLOCK-END
+ *          BLOCK-END
+ *          STREAM-END
+ *
+ * YAML also permits non-indented sequences if they are included into a block
+ * mapping.  In this case, the token BLOCK-SEQUENCE-START is not produced:
+ *
+ *      key:
+ *      - item 1    # BLOCK-SEQUENCE-START is NOT produced here.
+ *      - item 2
+ *
+ * Tokens:
+ *
+ *      STREAM-START(utf-8)
+ *      BLOCK-MAPPING-START
+ *      KEY
+ *      SCALAR("key",plain)
+ *      VALUE
+ *      BLOCK-ENTRY
+ *      SCALAR("item 1",plain)
+ *      BLOCK-ENTRY
+ *      SCALAR("item 2",plain)
+ *      BLOCK-END
+ */
+
+#include "yaml_private.h"
+
+/*
+ * Ensure that the buffer contains the required number of characters.
+ * Return 1 on success, 0 on failure (reader error or memory error).
+ */
+
+#define CACHE(parser,length)                                                    \
+    (parser->unread >= (length)                                                 \
+        ? 1                                                                     \
+        : yaml_parser_update_buffer(parser, (length)))
+
+/*
+ * Advance the buffer pointer.
+ */
+
+#define SKIP(parser)                                                            \
+     (parser->mark.index ++,                                                    \
+      parser->mark.column ++,                                                   \
+      parser->unread --,                                                        \
+      parser->buffer.pointer += WIDTH(parser->buffer))
+
+#define SKIP_LINE(parser)                                                       \
+     (IS_CRLF(parser->buffer) ?                                                 \
+      (parser->mark.index += 2,                                                 \
+       parser->mark.column = 0,                                                 \
+       parser->mark.line ++,                                                    \
+       parser->unread -= 2,                                                     \
+       parser->buffer.pointer += 2) :                                           \
+      IS_BREAK(parser->buffer) ?                                                \
+      (parser->mark.index ++,                                                   \
+       parser->mark.column = 0,                                                 \
+       parser->mark.line ++,                                                    \
+       parser->unread --,                                                       \
+       parser->buffer.pointer += WIDTH(parser->buffer)) : 0)
+
+/*
+ * Copy a character to a string buffer and advance pointers.
+ */
+
+#define READ(parser,string)                                                     \
+     (STRING_EXTEND(parser,string) ?                                            \
+         (COPY(string,parser->buffer),                                          \
+          parser->mark.index ++,                                                \
+          parser->mark.column ++,                                               \
+          parser->unread --,                                                    \
+          1) : 0)
+
+/*
+ * Copy a line break character to a string buffer and advance pointers.
+ */
+
+#define READ_LINE(parser,string)                                                \
+    (STRING_EXTEND(parser,string) ?                                             \
+    (((CHECK_AT(parser->buffer,'\r',0)                                          \
+       && CHECK_AT(parser->buffer,'\n',1)) ?        /* CR LF -> LF */           \
+     (*((string).pointer++) = (yaml_char_t) '\n',                               \
+      parser->buffer.pointer += 2,                                              \
+      parser->mark.index += 2,                                                  \
+      parser->mark.column = 0,                                                  \
+      parser->mark.line ++,                                                     \
+      parser->unread -= 2) :                                                    \
+     (CHECK_AT(parser->buffer,'\r',0)                                           \
+      || CHECK_AT(parser->buffer,'\n',0)) ?         /* CR|LF -> LF */           \
+     (*((string).pointer++) = (yaml_char_t) '\n',                               \
+      parser->buffer.pointer ++,                                                \
+      parser->mark.index ++,                                                    \
+      parser->mark.column = 0,                                                  \
+      parser->mark.line ++,                                                     \
+      parser->unread --) :                                                      \
+     (CHECK_AT(parser->buffer,'\xC2',0)                                         \
+      && CHECK_AT(parser->buffer,'\x85',1)) ?       /* NEL -> LF */             \
+     (*((string).pointer++) = (yaml_char_t) '\n',                               \
+      parser->buffer.pointer += 2,                                              \
+      parser->mark.index ++,                                                    \
+      parser->mark.column = 0,                                                  \
+      parser->mark.line ++,                                                     \
+      parser->unread --) :                                                      \
+     (CHECK_AT(parser->buffer,'\xE2',0) &&                                      \
+      CHECK_AT(parser->buffer,'\x80',1) &&                                      \
+      (CHECK_AT(parser->buffer,'\xA8',2) ||                                     \
+       CHECK_AT(parser->buffer,'\xA9',2))) ?        /* LS|PS -> LS|PS */        \
+     (*((string).pointer++) = *(parser->buffer.pointer++),                      \
+      *((string).pointer++) = *(parser->buffer.pointer++),                      \
+      *((string).pointer++) = *(parser->buffer.pointer++),                      \
+      parser->mark.index ++,                                                    \
+      parser->mark.column = 0,                                                  \
+      parser->mark.line ++,                                                     \
+      parser->unread --) : 0),                                                  \
+    1) : 0)
+
+/*
+ * Public API declarations.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token);
+
+/*
+ * Error handling.
+ */
+
+static int
+yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context,
+        yaml_mark_t context_mark, const char *problem);
+
+/*
+ * High-level token API.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_fetch_more_tokens(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_next_token(yaml_parser_t *parser);
+
+/*
+ * Potential simple keys.
+ */
+
+static int
+yaml_parser_stale_simple_keys(yaml_parser_t *parser);
+
+static int
+yaml_parser_save_simple_key(yaml_parser_t *parser);
+
+static int
+yaml_parser_remove_simple_key(yaml_parser_t *parser);
+
+static int
+yaml_parser_increase_flow_level(yaml_parser_t *parser);
+
+static int
+yaml_parser_decrease_flow_level(yaml_parser_t *parser);
+
+/*
+ * Indentation treatment.
+ */
+
+static int
+yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column,
+        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark);
+
+static int
+yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column);
+
+/*
+ * Token fetchers.
+ */
+
+static int
+yaml_parser_fetch_stream_start(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_stream_end(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_directive(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_document_indicator(yaml_parser_t *parser,
+        yaml_token_type_t type);
+
+static int
+yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser,
+        yaml_token_type_t type);
+
+static int
+yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser,
+        yaml_token_type_t type);
+
+static int
+yaml_parser_fetch_flow_entry(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_block_entry(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_key(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_value(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type);
+
+static int
+yaml_parser_fetch_tag(yaml_parser_t *parser);
+
+static int
+yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal);
+
+static int
+yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single);
+
+static int
+yaml_parser_fetch_plain_scalar(yaml_parser_t *parser);
+
+/*
+ * Token scanners.
+ */
+
+static int
+yaml_parser_scan_to_next_token(yaml_parser_t *parser);
+
+static int
+yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token);
+
+static int
+yaml_parser_scan_directive_name(yaml_parser_t *parser,
+        yaml_mark_t start_mark, yaml_char_t **name);
+
+static int
+yaml_parser_scan_version_directive_value(yaml_parser_t *parser,
+        yaml_mark_t start_mark, int *major, int *minor);
+
+static int
+yaml_parser_scan_version_directive_number(yaml_parser_t *parser,
+        yaml_mark_t start_mark, int *number);
+
+static int
+yaml_parser_scan_tag_directive_value(yaml_parser_t *parser,
+        yaml_mark_t mark, yaml_char_t **handle, yaml_char_t **prefix);
+
+static int
+yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token,
+        yaml_token_type_t type);
+
+static int
+yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token);
+
+static int
+yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive,
+        yaml_mark_t start_mark, yaml_char_t **handle);
+
+static int
 yaml_parser_scan_tag_uri(yaml_parser_t *parser, int uri_char, int directive,
-        yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri); 
- 
-static int 
-yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive, 
-        yaml_mark_t start_mark, yaml_string_t *string); 
- 
-static int 
-yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token, 
-        int literal); 
- 
-static int 
-yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser, 
-        int *indent, yaml_string_t *breaks, 
-        yaml_mark_t start_mark, yaml_mark_t *end_mark); 
- 
-static int 
-yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token, 
-        int single); 
- 
-static int 
-yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token); 
- 
-/* 
- * Get the next token. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token) 
-{ 
-    assert(parser); /* Non-NULL parser object is expected. */ 
-    assert(token);  /* Non-NULL token object is expected. */ 
- 
-    /* Erase the token object. */ 
- 
-    memset(token, 0, sizeof(yaml_token_t)); 
- 
-    /* No tokens after STREAM-END or error. */ 
- 
-    if (parser->stream_end_produced || parser->error) { 
-        return 1; 
-    } 
- 
-    /* Ensure that the tokens queue contains enough tokens. */ 
- 
-    if (!parser->token_available) { 
-        if (!yaml_parser_fetch_more_tokens(parser)) 
-            return 0; 
-    } 
- 
-    /* Fetch the next token from the queue. */ 
-
-    *token = DEQUEUE(parser, parser->tokens); 
-    parser->token_available = 0; 
-    parser->tokens_parsed ++; 
- 
-    if (token->type == YAML_STREAM_END_TOKEN) { 
-        parser->stream_end_produced = 1; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Set the scanner error and return 0. 
- */ 
- 
-static int 
-yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context, 
-        yaml_mark_t context_mark, const char *problem) 
-{ 
-    parser->error = YAML_SCANNER_ERROR; 
-    parser->context = context; 
-    parser->context_mark = context_mark; 
-    parser->problem = problem; 
-    parser->problem_mark = parser->mark; 
- 
-    return 0; 
-} 
- 
-/* 
- * Ensure that the tokens queue contains at least one token which can be 
- * returned to the Parser. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_fetch_more_tokens(yaml_parser_t *parser) 
-{ 
-    int need_more_tokens; 
- 
-    /* While we need more tokens to fetch, do it. */ 
- 
-    while (1) 
-    { 
-        /* 
-         * Check if we really need to fetch more tokens. 
-         */ 
- 
-        need_more_tokens = 0; 
- 
-        if (parser->tokens.head == parser->tokens.tail) 
-        { 
-            /* Queue is empty. */ 
- 
-            need_more_tokens = 1; 
-        } 
-        else 
-        { 
-            yaml_simple_key_t *simple_key; 
- 
-            /* Check if any potential simple key may occupy the head position. */ 
- 
-            if (!yaml_parser_stale_simple_keys(parser)) 
-                return 0; 
- 
-            for (simple_key = parser->simple_keys.start; 
-                    simple_key != parser->simple_keys.top; simple_key++) { 
-                if (simple_key->possible 
-                        && simple_key->token_number == parser->tokens_parsed) { 
-                    need_more_tokens = 1; 
-                    break; 
-                } 
-            } 
-        } 
- 
-        /* We are finished. */ 
- 
-        if (!need_more_tokens) 
-            break; 
- 
-        /* Fetch the next token. */ 
- 
-        if (!yaml_parser_fetch_next_token(parser)) 
-            return 0; 
-    } 
- 
-    parser->token_available = 1; 
- 
-    return 1; 
-} 
- 
-/* 
- * The dispatcher for token fetchers. 
- */ 
- 
-static int 
-yaml_parser_fetch_next_token(yaml_parser_t *parser) 
-{ 
-    /* Ensure that the buffer is initialized. */ 
- 
-    if (!CACHE(parser, 1)) 
-        return 0; 
- 
-    /* Check if we just started scanning.  Fetch STREAM-START then. */ 
- 
-    if (!parser->stream_start_produced) 
-        return yaml_parser_fetch_stream_start(parser); 
- 
-    /* Eat whitespaces and comments until we reach the next token. */ 
- 
-    if (!yaml_parser_scan_to_next_token(parser)) 
-        return 0; 
- 
-    /* Remove obsolete potential simple keys. */ 
- 
-    if (!yaml_parser_stale_simple_keys(parser)) 
-        return 0; 
- 
-    /* Check the indentation level against the current column. */ 
- 
-    if (!yaml_parser_unroll_indent(parser, parser->mark.column)) 
-        return 0; 
- 
-    /* 
-     * Ensure that the buffer contains at least 4 characters.  4 is the length 
-     * of the longest indicators ('--- ' and '... '). 
-     */ 
- 
-    if (!CACHE(parser, 4)) 
-        return 0; 
- 
-    /* Is it the end of the stream? */ 
- 
-    if (IS_Z(parser->buffer)) 
-        return yaml_parser_fetch_stream_end(parser); 
- 
-    /* Is it a directive? */ 
- 
-    if (parser->mark.column == 0 && CHECK(parser->buffer, '%')) 
-        return yaml_parser_fetch_directive(parser); 
- 
-    /* Is it the document start indicator? */ 
- 
-    if (parser->mark.column == 0 
-            && CHECK_AT(parser->buffer, '-', 0) 
-            && CHECK_AT(parser->buffer, '-', 1) 
-            && CHECK_AT(parser->buffer, '-', 2) 
-            && IS_BLANKZ_AT(parser->buffer, 3)) 
-        return yaml_parser_fetch_document_indicator(parser, 
-                YAML_DOCUMENT_START_TOKEN); 
- 
-    /* Is it the document end indicator? */ 
- 
-    if (parser->mark.column == 0 
-            && CHECK_AT(parser->buffer, '.', 0) 
-            && CHECK_AT(parser->buffer, '.', 1) 
-            && CHECK_AT(parser->buffer, '.', 2) 
-            && IS_BLANKZ_AT(parser->buffer, 3)) 
-        return yaml_parser_fetch_document_indicator(parser, 
-                YAML_DOCUMENT_END_TOKEN); 
- 
-    /* Is it the flow sequence start indicator? */ 
- 
-    if (CHECK(parser->buffer, '[')) 
-        return yaml_parser_fetch_flow_collection_start(parser, 
-                YAML_FLOW_SEQUENCE_START_TOKEN); 
- 
-    /* Is it the flow mapping start indicator? */ 
- 
-    if (CHECK(parser->buffer, '{')) 
-        return yaml_parser_fetch_flow_collection_start(parser, 
-                YAML_FLOW_MAPPING_START_TOKEN); 
- 
-    /* Is it the flow sequence end indicator? */ 
- 
-    if (CHECK(parser->buffer, ']')) 
-        return yaml_parser_fetch_flow_collection_end(parser, 
-                YAML_FLOW_SEQUENCE_END_TOKEN); 
- 
-    /* Is it the flow mapping end indicator? */ 
- 
-    if (CHECK(parser->buffer, '}')) 
-        return yaml_parser_fetch_flow_collection_end(parser, 
-                YAML_FLOW_MAPPING_END_TOKEN); 
- 
-    /* Is it the flow entry indicator? */ 
- 
-    if (CHECK(parser->buffer, ',')) 
-        return yaml_parser_fetch_flow_entry(parser); 
- 
-    /* Is it the block entry indicator? */ 
- 
-    if (CHECK(parser->buffer, '-') && IS_BLANKZ_AT(parser->buffer, 1)) 
-        return yaml_parser_fetch_block_entry(parser); 
- 
-    /* Is it the key indicator? */ 
- 
-    if (CHECK(parser->buffer, '?') 
-            && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1))) 
-        return yaml_parser_fetch_key(parser); 
- 
-    /* Is it the value indicator? */ 
- 
-    if (CHECK(parser->buffer, ':') 
-            && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1))) 
-        return yaml_parser_fetch_value(parser); 
- 
-    /* Is it an alias? */ 
- 
-    if (CHECK(parser->buffer, '*')) 
-        return yaml_parser_fetch_anchor(parser, YAML_ALIAS_TOKEN); 
- 
-    /* Is it an anchor? */ 
- 
-    if (CHECK(parser->buffer, '&')) 
-        return yaml_parser_fetch_anchor(parser, YAML_ANCHOR_TOKEN); 
- 
-    /* Is it a tag? */ 
- 
-    if (CHECK(parser->buffer, '!')) 
-        return yaml_parser_fetch_tag(parser); 
- 
-    /* Is it a literal scalar? */ 
- 
-    if (CHECK(parser->buffer, '|') && !parser->flow_level) 
-        return yaml_parser_fetch_block_scalar(parser, 1); 
- 
-    /* Is it a folded scalar? */ 
- 
-    if (CHECK(parser->buffer, '>') && !parser->flow_level) 
-        return yaml_parser_fetch_block_scalar(parser, 0); 
- 
-    /* Is it a single-quoted scalar? */ 
- 
-    if (CHECK(parser->buffer, '\'')) 
-        return yaml_parser_fetch_flow_scalar(parser, 1); 
- 
-    /* Is it a double-quoted scalar? */ 
- 
-    if (CHECK(parser->buffer, '"')) 
-        return yaml_parser_fetch_flow_scalar(parser, 0); 
- 
-    /* 
-     * Is it a plain scalar? 
-     * 
-     * A plain scalar may start with any non-blank characters except 
-     * 
-     *      '-', '?', ':', ',', '[', ']', '{', '}', 
-     *      '#', '&', '*', '!', '|', '>', '\'', '\"', 
-     *      '%', '@', '`'. 
-     * 
-     * In the block context (and, for the '-' indicator, in the flow context 
-     * too), it may also start with the characters 
-     * 
-     *      '-', '?', ':' 
-     * 
-     * if it is followed by a non-space character. 
-     * 
-     * The last rule is more restrictive than the specification requires. 
-     */ 
- 
-    if (!(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '-') 
-                || CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':') 
-                || CHECK(parser->buffer, ',') || CHECK(parser->buffer, '[') 
-                || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{') 
-                || CHECK(parser->buffer, '}') || CHECK(parser->buffer, '#') 
-                || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '*') 
-                || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '|') 
-                || CHECK(parser->buffer, '>') || CHECK(parser->buffer, '\'') 
-                || CHECK(parser->buffer, '"') || CHECK(parser->buffer, '%') 
-                || CHECK(parser->buffer, '@') || CHECK(parser->buffer, '`')) || 
-            (CHECK(parser->buffer, '-') && !IS_BLANK_AT(parser->buffer, 1)) || 
-            (!parser->flow_level && 
-             (CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':')) 
-             && !IS_BLANKZ_AT(parser->buffer, 1))) 
-        return yaml_parser_fetch_plain_scalar(parser); 
- 
-    /* 
-     * If we don't determine the token type so far, it is an error. 
-     */ 
- 
-    return yaml_parser_set_scanner_error(parser, 
-            "while scanning for the next token", parser->mark, 
-            "found character that cannot start any token"); 
-} 
- 
-/* 
- * Check the list of potential simple keys and remove the positions that 
- * cannot contain simple keys anymore. 
- */ 
- 
-static int 
-yaml_parser_stale_simple_keys(yaml_parser_t *parser) 
-{ 
-    yaml_simple_key_t *simple_key; 
- 
-    /* Check for a potential simple key for each flow level. */ 
- 
-    for (simple_key = parser->simple_keys.start; 
-            simple_key != parser->simple_keys.top; simple_key ++) 
-    { 
-        /* 
-         * The specification requires that a simple key 
-         * 
-         *  - is limited to a single line, 
-         *  - is shorter than 1024 characters. 
-         */ 
- 
-        if (simple_key->possible 
-                && (simple_key->mark.line < parser->mark.line 
-                    || simple_key->mark.index+1024 < parser->mark.index)) { 
- 
-            /* Check if the potential simple key to be removed is required. */ 
- 
-            if (simple_key->required) { 
-                return yaml_parser_set_scanner_error(parser, 
-                        "while scanning a simple key", simple_key->mark, 
-                        "could not find expected ':'"); 
-            } 
- 
-            simple_key->possible = 0; 
-        } 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Check if a simple key may start at the current position and add it if 
- * needed. 
- */ 
- 
-static int 
-yaml_parser_save_simple_key(yaml_parser_t *parser) 
-{ 
-    /* 
-     * A simple key is required at the current position if the scanner is in 
-     * the block context and the current column coincides with the indentation 
-     * level. 
-     */ 
- 
-    int required = (!parser->flow_level 
-            && parser->indent == (ptrdiff_t)parser->mark.column); 
- 
-    /* 
-     * If the current position may start a simple key, save it. 
-     */ 
- 
-    if (parser->simple_key_allowed) 
-    { 
-        yaml_simple_key_t simple_key; 
-        simple_key.possible = 1; 
-        simple_key.required = required; 
+        yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri);
+
+static int
+yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive,
+        yaml_mark_t start_mark, yaml_string_t *string);
+
+static int
+yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token,
+        int literal);
+
+static int
+yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser,
+        int *indent, yaml_string_t *breaks,
+        yaml_mark_t start_mark, yaml_mark_t *end_mark);
+
+static int
+yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token,
+        int single);
+
+static int
+yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token);
+
+/*
+ * Get the next token.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token)
+{
+    assert(parser); /* Non-NULL parser object is expected. */
+    assert(token);  /* Non-NULL token object is expected. */
+
+    /* Erase the token object. */
+
+    memset(token, 0, sizeof(yaml_token_t));
+
+    /* No tokens after STREAM-END or error. */
+
+    if (parser->stream_end_produced || parser->error) {
+        return 1;
+    }
+
+    /* Ensure that the tokens queue contains enough tokens. */
+
+    if (!parser->token_available) {
+        if (!yaml_parser_fetch_more_tokens(parser))
+            return 0;
+    }
+
+    /* Fetch the next token from the queue. */
+
+    *token = DEQUEUE(parser, parser->tokens);
+    parser->token_available = 0;
+    parser->tokens_parsed ++;
+
+    if (token->type == YAML_STREAM_END_TOKEN) {
+        parser->stream_end_produced = 1;
+    }
+
+    return 1;
+}
+
+/*
+ * Set the scanner error and return 0.
+ */
+
+static int
+yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context,
+        yaml_mark_t context_mark, const char *problem)
+{
+    parser->error = YAML_SCANNER_ERROR;
+    parser->context = context;
+    parser->context_mark = context_mark;
+    parser->problem = problem;
+    parser->problem_mark = parser->mark;
+
+    return 0;
+}
+
+/*
+ * Ensure that the tokens queue contains at least one token which can be
+ * returned to the Parser.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_fetch_more_tokens(yaml_parser_t *parser)
+{
+    int need_more_tokens;
+
+    /* While we need more tokens to fetch, do it. */
+
+    while (1)
+    {
+        /*
+         * Check if we really need to fetch more tokens.
+         */
+
+        need_more_tokens = 0;
+
+        if (parser->tokens.head == parser->tokens.tail)
+        {
+            /* Queue is empty. */
+
+            need_more_tokens = 1;
+        }
+        else
+        {
+            yaml_simple_key_t *simple_key;
+
+            /* Check if any potential simple key may occupy the head position. */
+
+            if (!yaml_parser_stale_simple_keys(parser))
+                return 0;
+
+            for (simple_key = parser->simple_keys.start;
+                    simple_key != parser->simple_keys.top; simple_key++) {
+                if (simple_key->possible
+                        && simple_key->token_number == parser->tokens_parsed) {
+                    need_more_tokens = 1;
+                    break;
+                }
+            }
+        }
+
+        /* We are finished. */
+
+        if (!need_more_tokens)
+            break;
+
+        /* Fetch the next token. */
+
+        if (!yaml_parser_fetch_next_token(parser))
+            return 0;
+    }
+
+    parser->token_available = 1;
+
+    return 1;
+}
+
+/*
+ * The dispatcher for token fetchers.
+ */
+
+static int
+yaml_parser_fetch_next_token(yaml_parser_t *parser)
+{
+    /* Ensure that the buffer is initialized. */
+
+    if (!CACHE(parser, 1))
+        return 0;
+
+    /* Check if we just started scanning.  Fetch STREAM-START then. */
+
+    if (!parser->stream_start_produced)
+        return yaml_parser_fetch_stream_start(parser);
+
+    /* Eat whitespaces and comments until we reach the next token. */
+
+    if (!yaml_parser_scan_to_next_token(parser))
+        return 0;
+
+    /* Remove obsolete potential simple keys. */
+
+    if (!yaml_parser_stale_simple_keys(parser))
+        return 0;
+
+    /* Check the indentation level against the current column. */
+
+    if (!yaml_parser_unroll_indent(parser, parser->mark.column))
+        return 0;
+
+    /*
+     * Ensure that the buffer contains at least 4 characters.  4 is the length
+     * of the longest indicators ('--- ' and '... ').
+     */
+
+    if (!CACHE(parser, 4))
+        return 0;
+
+    /* Is it the end of the stream? */
+
+    if (IS_Z(parser->buffer))
+        return yaml_parser_fetch_stream_end(parser);
+
+    /* Is it a directive? */
+
+    if (parser->mark.column == 0 && CHECK(parser->buffer, '%'))
+        return yaml_parser_fetch_directive(parser);
+
+    /* Is it the document start indicator? */
+
+    if (parser->mark.column == 0
+            && CHECK_AT(parser->buffer, '-', 0)
+            && CHECK_AT(parser->buffer, '-', 1)
+            && CHECK_AT(parser->buffer, '-', 2)
+            && IS_BLANKZ_AT(parser->buffer, 3))
+        return yaml_parser_fetch_document_indicator(parser,
+                YAML_DOCUMENT_START_TOKEN);
+
+    /* Is it the document end indicator? */
+
+    if (parser->mark.column == 0
+            && CHECK_AT(parser->buffer, '.', 0)
+            && CHECK_AT(parser->buffer, '.', 1)
+            && CHECK_AT(parser->buffer, '.', 2)
+            && IS_BLANKZ_AT(parser->buffer, 3))
+        return yaml_parser_fetch_document_indicator(parser,
+                YAML_DOCUMENT_END_TOKEN);
+
+    /* Is it the flow sequence start indicator? */
+
+    if (CHECK(parser->buffer, '['))
+        return yaml_parser_fetch_flow_collection_start(parser,
+                YAML_FLOW_SEQUENCE_START_TOKEN);
+
+    /* Is it the flow mapping start indicator? */
+
+    if (CHECK(parser->buffer, '{'))
+        return yaml_parser_fetch_flow_collection_start(parser,
+                YAML_FLOW_MAPPING_START_TOKEN);
+
+    /* Is it the flow sequence end indicator? */
+
+    if (CHECK(parser->buffer, ']'))
+        return yaml_parser_fetch_flow_collection_end(parser,
+                YAML_FLOW_SEQUENCE_END_TOKEN);
+
+    /* Is it the flow mapping end indicator? */
+
+    if (CHECK(parser->buffer, '}'))
+        return yaml_parser_fetch_flow_collection_end(parser,
+                YAML_FLOW_MAPPING_END_TOKEN);
+
+    /* Is it the flow entry indicator? */
+
+    if (CHECK(parser->buffer, ','))
+        return yaml_parser_fetch_flow_entry(parser);
+
+    /* Is it the block entry indicator? */
+
+    if (CHECK(parser->buffer, '-') && IS_BLANKZ_AT(parser->buffer, 1))
+        return yaml_parser_fetch_block_entry(parser);
+
+    /* Is it the key indicator? */
+
+    if (CHECK(parser->buffer, '?')
+            && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1)))
+        return yaml_parser_fetch_key(parser);
+
+    /* Is it the value indicator? */
+
+    if (CHECK(parser->buffer, ':')
+            && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1)))
+        return yaml_parser_fetch_value(parser);
+
+    /* Is it an alias? */
+
+    if (CHECK(parser->buffer, '*'))
+        return yaml_parser_fetch_anchor(parser, YAML_ALIAS_TOKEN);
+
+    /* Is it an anchor? */
+
+    if (CHECK(parser->buffer, '&'))
+        return yaml_parser_fetch_anchor(parser, YAML_ANCHOR_TOKEN);
+
+    /* Is it a tag? */
+
+    if (CHECK(parser->buffer, '!'))
+        return yaml_parser_fetch_tag(parser);
+
+    /* Is it a literal scalar? */
+
+    if (CHECK(parser->buffer, '|') && !parser->flow_level)
+        return yaml_parser_fetch_block_scalar(parser, 1);
+
+    /* Is it a folded scalar? */
+
+    if (CHECK(parser->buffer, '>') && !parser->flow_level)
+        return yaml_parser_fetch_block_scalar(parser, 0);
+
+    /* Is it a single-quoted scalar? */
+
+    if (CHECK(parser->buffer, '\''))
+        return yaml_parser_fetch_flow_scalar(parser, 1);
+
+    /* Is it a double-quoted scalar? */
+
+    if (CHECK(parser->buffer, '"'))
+        return yaml_parser_fetch_flow_scalar(parser, 0);
+
+    /*
+     * Is it a plain scalar?
+     *
+     * A plain scalar may start with any non-blank characters except
+     *
+     *      '-', '?', ':', ',', '[', ']', '{', '}',
+     *      '#', '&', '*', '!', '|', '>', '\'', '\"',
+     *      '%', '@', '`'.
+     *
+     * In the block context (and, for the '-' indicator, in the flow context
+     * too), it may also start with the characters
+     *
+     *      '-', '?', ':'
+     *
+     * if it is followed by a non-space character.
+     *
+     * The last rule is more restrictive than the specification requires.
+     */
+
+    if (!(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '-')
+                || CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':')
+                || CHECK(parser->buffer, ',') || CHECK(parser->buffer, '[')
+                || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{')
+                || CHECK(parser->buffer, '}') || CHECK(parser->buffer, '#')
+                || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '*')
+                || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '|')
+                || CHECK(parser->buffer, '>') || CHECK(parser->buffer, '\'')
+                || CHECK(parser->buffer, '"') || CHECK(parser->buffer, '%')
+                || CHECK(parser->buffer, '@') || CHECK(parser->buffer, '`')) ||
+            (CHECK(parser->buffer, '-') && !IS_BLANK_AT(parser->buffer, 1)) ||
+            (!parser->flow_level &&
+             (CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':'))
+             && !IS_BLANKZ_AT(parser->buffer, 1)))
+        return yaml_parser_fetch_plain_scalar(parser);
+
+    /*
+     * If we don't determine the token type so far, it is an error.
+     */
+
+    return yaml_parser_set_scanner_error(parser,
+            "while scanning for the next token", parser->mark,
+            "found character that cannot start any token");
+}
+
+/*
+ * Check the list of potential simple keys and remove the positions that
+ * cannot contain simple keys anymore.
+ */
+
+static int
+yaml_parser_stale_simple_keys(yaml_parser_t *parser)
+{
+    yaml_simple_key_t *simple_key;
+
+    /* Check for a potential simple key for each flow level. */
+
+    for (simple_key = parser->simple_keys.start;
+            simple_key != parser->simple_keys.top; simple_key ++)
+    {
+        /*
+         * The specification requires that a simple key
+         *
+         *  - is limited to a single line,
+         *  - is shorter than 1024 characters.
+         */
+
+        if (simple_key->possible
+                && (simple_key->mark.line < parser->mark.line
+                    || simple_key->mark.index+1024 < parser->mark.index)) {
+
+            /* Check if the potential simple key to be removed is required. */
+
+            if (simple_key->required) {
+                return yaml_parser_set_scanner_error(parser,
+                        "while scanning a simple key", simple_key->mark,
+                        "could not find expected ':'");
+            }
+
+            simple_key->possible = 0;
+        }
+    }
+
+    return 1;
+}
+
+/*
+ * Check if a simple key may start at the current position and add it if
+ * needed.
+ */
+
+static int
+yaml_parser_save_simple_key(yaml_parser_t *parser)
+{
+    /*
+     * A simple key is required at the current position if the scanner is in
+     * the block context and the current column coincides with the indentation
+     * level.
+     */
+
+    int required = (!parser->flow_level
+            && parser->indent == (ptrdiff_t)parser->mark.column);
+
+    /*
+     * If the current position may start a simple key, save it.
+     */
+
+    if (parser->simple_key_allowed)
+    {
+        yaml_simple_key_t simple_key;
+        simple_key.possible = 1;
+        simple_key.required = required;
         simple_key.token_number =
-            parser->tokens_parsed + (parser->tokens.tail - parser->tokens.head); 
-        simple_key.mark = parser->mark; 
- 
-        if (!yaml_parser_remove_simple_key(parser)) return 0; 
- 
-        *(parser->simple_keys.top-1) = simple_key; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Remove a potential simple key at the current flow level. 
- */ 
- 
-static int 
-yaml_parser_remove_simple_key(yaml_parser_t *parser) 
-{ 
-    yaml_simple_key_t *simple_key = parser->simple_keys.top-1; 
- 
-    if (simple_key->possible) 
-    { 
-        /* If the key is required, it is an error. */ 
- 
-        if (simple_key->required) { 
-            return yaml_parser_set_scanner_error(parser, 
-                    "while scanning a simple key", simple_key->mark, 
-                    "could not find expected ':'"); 
-        } 
-    } 
- 
-    /* Remove the key from the stack. */ 
- 
-    simple_key->possible = 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Increase the flow level and resize the simple key list if needed. 
- */ 
- 
-static int 
-yaml_parser_increase_flow_level(yaml_parser_t *parser) 
-{ 
-    yaml_simple_key_t empty_simple_key = { 0, 0, 0, { 0, 0, 0 } }; 
- 
-    /* Reset the simple key on the next level. */ 
- 
-    if (!PUSH(parser, parser->simple_keys, empty_simple_key)) 
-        return 0; 
- 
-    /* Increase the flow level. */ 
- 
-    if (parser->flow_level == INT_MAX) { 
-        parser->error = YAML_MEMORY_ERROR; 
-        return 0; 
-    } 
- 
-    parser->flow_level++; 
- 
-    return 1; 
-} 
- 
-/* 
- * Decrease the flow level. 
- */ 
- 
-static int 
-yaml_parser_decrease_flow_level(yaml_parser_t *parser) 
-{ 
-    if (parser->flow_level) { 
-        parser->flow_level --; 
+            parser->tokens_parsed + (parser->tokens.tail - parser->tokens.head);
+        simple_key.mark = parser->mark;
+
+        if (!yaml_parser_remove_simple_key(parser)) return 0;
+
+        *(parser->simple_keys.top-1) = simple_key;
+    }
+
+    return 1;
+}
+
+/*
+ * Remove a potential simple key at the current flow level.
+ */
+
+static int
+yaml_parser_remove_simple_key(yaml_parser_t *parser)
+{
+    yaml_simple_key_t *simple_key = parser->simple_keys.top-1;
+
+    if (simple_key->possible)
+    {
+        /* If the key is required, it is an error. */
+
+        if (simple_key->required) {
+            return yaml_parser_set_scanner_error(parser,
+                    "while scanning a simple key", simple_key->mark,
+                    "could not find expected ':'");
+        }
+    }
+
+    /* Remove the key from the stack. */
+
+    simple_key->possible = 0;
+
+    return 1;
+}
+
+/*
+ * Increase the flow level and resize the simple key list if needed.
+ */
+
+static int
+yaml_parser_increase_flow_level(yaml_parser_t *parser)
+{
+    yaml_simple_key_t empty_simple_key = { 0, 0, 0, { 0, 0, 0 } };
+
+    /* Reset the simple key on the next level. */
+
+    if (!PUSH(parser, parser->simple_keys, empty_simple_key))
+        return 0;
+
+    /* Increase the flow level. */
+
+    if (parser->flow_level == INT_MAX) {
+        parser->error = YAML_MEMORY_ERROR;
+        return 0;
+    }
+
+    parser->flow_level++;
+
+    return 1;
+}
+
+/*
+ * Decrease the flow level.
+ */
+
+static int
+yaml_parser_decrease_flow_level(yaml_parser_t *parser)
+{
+    if (parser->flow_level) {
+        parser->flow_level --;
         (void)POP(parser, parser->simple_keys);
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Push the current indentation level to the stack and set the new level 
- * the current column is greater than the indentation level.  In this case, 
- * append or insert the specified token into the token queue. 
- *
- */ 
- 
-static int 
-yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column, 
-        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark) 
-{ 
-    yaml_token_t token; 
- 
-    /* In the flow context, do nothing. */ 
- 
-    if (parser->flow_level) 
-        return 1; 
- 
-    if (parser->indent < column) 
-    { 
-        /* 
-         * Push the current indentation level to the stack and set the new 
-         * indentation level. 
-         */ 
- 
-        if (!PUSH(parser, parser->indents, parser->indent)) 
-            return 0; 
- 
-        if (column > INT_MAX) { 
-            parser->error = YAML_MEMORY_ERROR; 
-            return 0; 
-        } 
- 
-        parser->indent = column; 
- 
-        /* Create a token and insert it into the queue. */ 
- 
-        TOKEN_INIT(token, type, mark, mark); 
- 
-        if (number == -1) { 
-            if (!ENQUEUE(parser, parser->tokens, token)) 
-                return 0; 
-        } 
-        else { 
-            if (!QUEUE_INSERT(parser, 
-                        parser->tokens, number - parser->tokens_parsed, token)) 
-                return 0; 
-        } 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Pop indentation levels from the indents stack until the current level 
+    }
+
+    return 1;
+}
+
+/*
+ * Push the current indentation level to the stack and set the new level
+ * the current column is greater than the indentation level.  In this case,
+ * append or insert the specified token into the token queue.
+ *
+ */
+
+static int
+yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column,
+        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark)
+{
+    yaml_token_t token;
+
+    /* In the flow context, do nothing. */
+
+    if (parser->flow_level)
+        return 1;
+
+    if (parser->indent < column)
+    {
+        /*
+         * Push the current indentation level to the stack and set the new
+         * indentation level.
+         */
+
+        if (!PUSH(parser, parser->indents, parser->indent))
+            return 0;
+
+        if (column > INT_MAX) {
+            parser->error = YAML_MEMORY_ERROR;
+            return 0;
+        }
+
+        parser->indent = column;
+
+        /* Create a token and insert it into the queue. */
+
+        TOKEN_INIT(token, type, mark, mark);
+
+        if (number == -1) {
+            if (!ENQUEUE(parser, parser->tokens, token))
+                return 0;
+        }
+        else {
+            if (!QUEUE_INSERT(parser,
+                        parser->tokens, number - parser->tokens_parsed, token))
+                return 0;
+        }
+    }
+
+    return 1;
+}
+
+/*
+ * Pop indentation levels from the indents stack until the current level
  * becomes less or equal to the column.  For each indentation level, append
- * the BLOCK-END token. 
- */ 
- 
- 
-static int 
-yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column) 
-{ 
-    yaml_token_t token; 
- 
-    /* In the flow context, do nothing. */ 
- 
-    if (parser->flow_level) 
-        return 1; 
- 
+ * the BLOCK-END token.
+ */
+
+
+static int
+yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column)
+{
+    yaml_token_t token;
+
+    /* In the flow context, do nothing. */
+
+    if (parser->flow_level)
+        return 1;
+
     /* Loop through the indentation levels in the stack. */
- 
-    while (parser->indent > column) 
-    { 
-        /* Create a token and append it to the queue. */ 
- 
-        TOKEN_INIT(token, YAML_BLOCK_END_TOKEN, parser->mark, parser->mark); 
- 
-        if (!ENQUEUE(parser, parser->tokens, token)) 
-            return 0; 
- 
-        /* Pop the indentation level. */ 
- 
-        parser->indent = POP(parser, parser->indents); 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Initialize the scanner and produce the STREAM-START token. 
- */ 
- 
-static int 
-yaml_parser_fetch_stream_start(yaml_parser_t *parser) 
-{ 
-    yaml_simple_key_t simple_key = { 0, 0, 0, { 0, 0, 0 } }; 
-    yaml_token_t token; 
- 
-    /* Set the initial indentation. */ 
- 
-    parser->indent = -1; 
- 
-    /* Initialize the simple key stack. */ 
- 
-    if (!PUSH(parser, parser->simple_keys, simple_key)) 
-        return 0; 
- 
-    /* A simple key is allowed at the beginning of the stream. */ 
- 
-    parser->simple_key_allowed = 1; 
- 
-    /* We have started. */ 
- 
-    parser->stream_start_produced = 1; 
- 
-    /* Create the STREAM-START token and append it to the queue. */ 
- 
-    STREAM_START_TOKEN_INIT(token, parser->encoding, 
-            parser->mark, parser->mark); 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the STREAM-END token and shut down the scanner. 
- */ 
- 
-static int 
-yaml_parser_fetch_stream_end(yaml_parser_t *parser) 
-{ 
-    yaml_token_t token; 
- 
-    /* Force new line. */ 
- 
-    if (parser->mark.column != 0) { 
-        parser->mark.column = 0; 
-        parser->mark.line ++; 
-    } 
- 
-    /* Reset the indentation level. */ 
- 
-    if (!yaml_parser_unroll_indent(parser, -1)) 
-        return 0; 
- 
-    /* Reset simple keys. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Create the STREAM-END token and append it to the queue. */ 
- 
-    STREAM_END_TOKEN_INIT(token, parser->mark, parser->mark); 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token. 
- */ 
- 
-static int 
-yaml_parser_fetch_directive(yaml_parser_t *parser) 
-{ 
-    yaml_token_t token; 
- 
-    /* Reset the indentation level. */ 
- 
-    if (!yaml_parser_unroll_indent(parser, -1)) 
-        return 0; 
- 
-    /* Reset simple keys. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Create the YAML-DIRECTIVE or TAG-DIRECTIVE token. */ 
- 
-    if (!yaml_parser_scan_directive(parser, &token)) 
-        return 0; 
- 
-    /* Append the token to the queue. */ 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) { 
-        yaml_token_delete(&token); 
-        return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the DOCUMENT-START or DOCUMENT-END token. 
- */ 
- 
-static int 
-yaml_parser_fetch_document_indicator(yaml_parser_t *parser, 
-        yaml_token_type_t type) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_token_t token; 
- 
-    /* Reset the indentation level. */ 
- 
-    if (!yaml_parser_unroll_indent(parser, -1)) 
-        return 0; 
- 
-    /* Reset simple keys. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Consume the token. */ 
- 
-    start_mark = parser->mark; 
- 
-    SKIP(parser); 
-    SKIP(parser); 
-    SKIP(parser); 
- 
-    end_mark = parser->mark; 
- 
-    /* Create the DOCUMENT-START or DOCUMENT-END token. */ 
- 
-    TOKEN_INIT(token, type, start_mark, end_mark); 
- 
-    /* Append the token to the queue. */ 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token. 
- */ 
- 
-static int 
-yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser, 
-        yaml_token_type_t type) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_token_t token; 
- 
-    /* The indicators '[' and '{' may start a simple key. */ 
- 
-    if (!yaml_parser_save_simple_key(parser)) 
-        return 0; 
- 
-    /* Increase the flow level. */ 
- 
-    if (!yaml_parser_increase_flow_level(parser)) 
-        return 0; 
- 
-    /* A simple key may follow the indicators '[' and '{'. */ 
- 
-    parser->simple_key_allowed = 1; 
- 
-    /* Consume the token. */ 
- 
-    start_mark = parser->mark; 
-    SKIP(parser); 
-    end_mark = parser->mark; 
- 
-    /* Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token. */ 
- 
-    TOKEN_INIT(token, type, start_mark, end_mark); 
- 
-    /* Append the token to the queue. */ 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token. 
- */ 
- 
-static int 
-yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser, 
-        yaml_token_type_t type) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_token_t token; 
- 
-    /* Reset any potential simple key on the current flow level. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    /* Decrease the flow level. */ 
- 
-    if (!yaml_parser_decrease_flow_level(parser)) 
-        return 0; 
- 
-    /* No simple keys after the indicators ']' and '}'. */ 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Consume the token. */ 
- 
-    start_mark = parser->mark; 
-    SKIP(parser); 
-    end_mark = parser->mark; 
- 
-    /* Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token. */ 
- 
-    TOKEN_INIT(token, type, start_mark, end_mark); 
- 
-    /* Append the token to the queue. */ 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the FLOW-ENTRY token. 
- */ 
- 
-static int 
-yaml_parser_fetch_flow_entry(yaml_parser_t *parser) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_token_t token; 
- 
-    /* Reset any potential simple keys on the current flow level. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    /* Simple keys are allowed after ','. */ 
- 
-    parser->simple_key_allowed = 1; 
- 
-    /* Consume the token. */ 
- 
-    start_mark = parser->mark; 
-    SKIP(parser); 
-    end_mark = parser->mark; 
- 
-    /* Create the FLOW-ENTRY token and append it to the queue. */ 
- 
-    TOKEN_INIT(token, YAML_FLOW_ENTRY_TOKEN, start_mark, end_mark); 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the BLOCK-ENTRY token. 
- */ 
- 
-static int 
-yaml_parser_fetch_block_entry(yaml_parser_t *parser) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_token_t token; 
- 
-    /* Check if the scanner is in the block context. */ 
- 
-    if (!parser->flow_level) 
-    { 
-        /* Check if we are allowed to start a new entry. */ 
- 
-        if (!parser->simple_key_allowed) { 
-            return yaml_parser_set_scanner_error(parser, NULL, parser->mark, 
-                    "block sequence entries are not allowed in this context"); 
-        } 
- 
-        /* Add the BLOCK-SEQUENCE-START token if needed. */ 
- 
-        if (!yaml_parser_roll_indent(parser, parser->mark.column, -1, 
-                    YAML_BLOCK_SEQUENCE_START_TOKEN, parser->mark)) 
-            return 0; 
-    } 
-    else 
-    { 
-        /* 
-         * It is an error for the '-' indicator to occur in the flow context, 
-         * but we let the Parser detect and report about it because the Parser 
-         * is able to point to the context. 
-         */ 
-    } 
- 
-    /* Reset any potential simple keys on the current flow level. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    /* Simple keys are allowed after '-'. */ 
- 
-    parser->simple_key_allowed = 1; 
- 
-    /* Consume the token. */ 
- 
-    start_mark = parser->mark; 
-    SKIP(parser); 
-    end_mark = parser->mark; 
- 
-    /* Create the BLOCK-ENTRY token and append it to the queue. */ 
- 
-    TOKEN_INIT(token, YAML_BLOCK_ENTRY_TOKEN, start_mark, end_mark); 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the KEY token. 
- */ 
- 
-static int 
-yaml_parser_fetch_key(yaml_parser_t *parser) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_token_t token; 
- 
-    /* In the block context, additional checks are required. */ 
- 
-    if (!parser->flow_level) 
-    { 
+
+    while (parser->indent > column)
+    {
+        /* Create a token and append it to the queue. */
+
+        TOKEN_INIT(token, YAML_BLOCK_END_TOKEN, parser->mark, parser->mark);
+
+        if (!ENQUEUE(parser, parser->tokens, token))
+            return 0;
+
+        /* Pop the indentation level. */
+
+        parser->indent = POP(parser, parser->indents);
+    }
+
+    return 1;
+}
+
+/*
+ * Initialize the scanner and produce the STREAM-START token.
+ */
+
+static int
+yaml_parser_fetch_stream_start(yaml_parser_t *parser)
+{
+    yaml_simple_key_t simple_key = { 0, 0, 0, { 0, 0, 0 } };
+    yaml_token_t token;
+
+    /* Set the initial indentation. */
+
+    parser->indent = -1;
+
+    /* Initialize the simple key stack. */
+
+    if (!PUSH(parser, parser->simple_keys, simple_key))
+        return 0;
+
+    /* A simple key is allowed at the beginning of the stream. */
+
+    parser->simple_key_allowed = 1;
+
+    /* We have started. */
+
+    parser->stream_start_produced = 1;
+
+    /* Create the STREAM-START token and append it to the queue. */
+
+    STREAM_START_TOKEN_INIT(token, parser->encoding,
+            parser->mark, parser->mark);
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the STREAM-END token and shut down the scanner.
+ */
+
+static int
+yaml_parser_fetch_stream_end(yaml_parser_t *parser)
+{
+    yaml_token_t token;
+
+    /* Force new line. */
+
+    if (parser->mark.column != 0) {
+        parser->mark.column = 0;
+        parser->mark.line ++;
+    }
+
+    /* Reset the indentation level. */
+
+    if (!yaml_parser_unroll_indent(parser, -1))
+        return 0;
+
+    /* Reset simple keys. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    parser->simple_key_allowed = 0;
+
+    /* Create the STREAM-END token and append it to the queue. */
+
+    STREAM_END_TOKEN_INIT(token, parser->mark, parser->mark);
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token.
+ */
+
+static int
+yaml_parser_fetch_directive(yaml_parser_t *parser)
+{
+    yaml_token_t token;
+
+    /* Reset the indentation level. */
+
+    if (!yaml_parser_unroll_indent(parser, -1))
+        return 0;
+
+    /* Reset simple keys. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    parser->simple_key_allowed = 0;
+
+    /* Create the YAML-DIRECTIVE or TAG-DIRECTIVE token. */
+
+    if (!yaml_parser_scan_directive(parser, &token))
+        return 0;
+
+    /* Append the token to the queue. */
+
+    if (!ENQUEUE(parser, parser->tokens, token)) {
+        yaml_token_delete(&token);
+        return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Produce the DOCUMENT-START or DOCUMENT-END token.
+ */
+
+static int
+yaml_parser_fetch_document_indicator(yaml_parser_t *parser,
+        yaml_token_type_t type)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_token_t token;
+
+    /* Reset the indentation level. */
+
+    if (!yaml_parser_unroll_indent(parser, -1))
+        return 0;
+
+    /* Reset simple keys. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    parser->simple_key_allowed = 0;
+
+    /* Consume the token. */
+
+    start_mark = parser->mark;
+
+    SKIP(parser);
+    SKIP(parser);
+    SKIP(parser);
+
+    end_mark = parser->mark;
+
+    /* Create the DOCUMENT-START or DOCUMENT-END token. */
+
+    TOKEN_INIT(token, type, start_mark, end_mark);
+
+    /* Append the token to the queue. */
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token.
+ */
+
+static int
+yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser,
+        yaml_token_type_t type)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_token_t token;
+
+    /* The indicators '[' and '{' may start a simple key. */
+
+    if (!yaml_parser_save_simple_key(parser))
+        return 0;
+
+    /* Increase the flow level. */
+
+    if (!yaml_parser_increase_flow_level(parser))
+        return 0;
+
+    /* A simple key may follow the indicators '[' and '{'. */
+
+    parser->simple_key_allowed = 1;
+
+    /* Consume the token. */
+
+    start_mark = parser->mark;
+    SKIP(parser);
+    end_mark = parser->mark;
+
+    /* Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token. */
+
+    TOKEN_INIT(token, type, start_mark, end_mark);
+
+    /* Append the token to the queue. */
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token.
+ */
+
+static int
+yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser,
+        yaml_token_type_t type)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_token_t token;
+
+    /* Reset any potential simple key on the current flow level. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    /* Decrease the flow level. */
+
+    if (!yaml_parser_decrease_flow_level(parser))
+        return 0;
+
+    /* No simple keys after the indicators ']' and '}'. */
+
+    parser->simple_key_allowed = 0;
+
+    /* Consume the token. */
+
+    start_mark = parser->mark;
+    SKIP(parser);
+    end_mark = parser->mark;
+
+    /* Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token. */
+
+    TOKEN_INIT(token, type, start_mark, end_mark);
+
+    /* Append the token to the queue. */
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the FLOW-ENTRY token.
+ */
+
+static int
+yaml_parser_fetch_flow_entry(yaml_parser_t *parser)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_token_t token;
+
+    /* Reset any potential simple keys on the current flow level. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    /* Simple keys are allowed after ','. */
+
+    parser->simple_key_allowed = 1;
+
+    /* Consume the token. */
+
+    start_mark = parser->mark;
+    SKIP(parser);
+    end_mark = parser->mark;
+
+    /* Create the FLOW-ENTRY token and append it to the queue. */
+
+    TOKEN_INIT(token, YAML_FLOW_ENTRY_TOKEN, start_mark, end_mark);
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the BLOCK-ENTRY token.
+ */
+
+static int
+yaml_parser_fetch_block_entry(yaml_parser_t *parser)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_token_t token;
+
+    /* Check if the scanner is in the block context. */
+
+    if (!parser->flow_level)
+    {
+        /* Check if we are allowed to start a new entry. */
+
+        if (!parser->simple_key_allowed) {
+            return yaml_parser_set_scanner_error(parser, NULL, parser->mark,
+                    "block sequence entries are not allowed in this context");
+        }
+
+        /* Add the BLOCK-SEQUENCE-START token if needed. */
+
+        if (!yaml_parser_roll_indent(parser, parser->mark.column, -1,
+                    YAML_BLOCK_SEQUENCE_START_TOKEN, parser->mark))
+            return 0;
+    }
+    else
+    {
+        /*
+         * It is an error for the '-' indicator to occur in the flow context,
+         * but we let the Parser detect and report about it because the Parser
+         * is able to point to the context.
+         */
+    }
+
+    /* Reset any potential simple keys on the current flow level. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    /* Simple keys are allowed after '-'. */
+
+    parser->simple_key_allowed = 1;
+
+    /* Consume the token. */
+
+    start_mark = parser->mark;
+    SKIP(parser);
+    end_mark = parser->mark;
+
+    /* Create the BLOCK-ENTRY token and append it to the queue. */
+
+    TOKEN_INIT(token, YAML_BLOCK_ENTRY_TOKEN, start_mark, end_mark);
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the KEY token.
+ */
+
+static int
+yaml_parser_fetch_key(yaml_parser_t *parser)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_token_t token;
+
+    /* In the block context, additional checks are required. */
+
+    if (!parser->flow_level)
+    {
         /* Check if we are allowed to start a new key (not necessary simple). */
- 
-        if (!parser->simple_key_allowed) { 
-            return yaml_parser_set_scanner_error(parser, NULL, parser->mark, 
-                    "mapping keys are not allowed in this context"); 
-        } 
- 
-        /* Add the BLOCK-MAPPING-START token if needed. */ 
- 
-        if (!yaml_parser_roll_indent(parser, parser->mark.column, -1, 
-                    YAML_BLOCK_MAPPING_START_TOKEN, parser->mark)) 
-            return 0; 
-    } 
- 
-    /* Reset any potential simple keys on the current flow level. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    /* Simple keys are allowed after '?' in the block context. */ 
- 
-    parser->simple_key_allowed = (!parser->flow_level); 
- 
-    /* Consume the token. */ 
- 
-    start_mark = parser->mark; 
-    SKIP(parser); 
-    end_mark = parser->mark; 
- 
-    /* Create the KEY token and append it to the queue. */ 
- 
-    TOKEN_INIT(token, YAML_KEY_TOKEN, start_mark, end_mark); 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the VALUE token. 
- */ 
- 
-static int 
-yaml_parser_fetch_value(yaml_parser_t *parser) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_token_t token; 
-    yaml_simple_key_t *simple_key = parser->simple_keys.top-1; 
- 
-    /* Have we found a simple key? */ 
- 
-    if (simple_key->possible) 
-    { 
- 
-        /* Create the KEY token and insert it into the queue. */ 
- 
-        TOKEN_INIT(token, YAML_KEY_TOKEN, simple_key->mark, simple_key->mark); 
- 
-        if (!QUEUE_INSERT(parser, parser->tokens, 
-                    simple_key->token_number - parser->tokens_parsed, token)) 
-            return 0; 
- 
-        /* In the block context, we may need to add the BLOCK-MAPPING-START token. */ 
- 
-        if (!yaml_parser_roll_indent(parser, simple_key->mark.column, 
-                    simple_key->token_number, 
-                    YAML_BLOCK_MAPPING_START_TOKEN, simple_key->mark)) 
-            return 0; 
- 
-        /* Remove the simple key. */ 
- 
-        simple_key->possible = 0; 
- 
-        /* A simple key cannot follow another simple key. */ 
- 
-        parser->simple_key_allowed = 0; 
-    } 
-    else 
-    { 
-        /* The ':' indicator follows a complex key. */ 
- 
-        /* In the block context, extra checks are required. */ 
- 
-        if (!parser->flow_level) 
-        { 
-            /* Check if we are allowed to start a complex value. */ 
- 
-            if (!parser->simple_key_allowed) { 
-                return yaml_parser_set_scanner_error(parser, NULL, parser->mark, 
-                        "mapping values are not allowed in this context"); 
-            } 
- 
-            /* Add the BLOCK-MAPPING-START token if needed. */ 
- 
-            if (!yaml_parser_roll_indent(parser, parser->mark.column, -1, 
-                        YAML_BLOCK_MAPPING_START_TOKEN, parser->mark)) 
-                return 0; 
-        } 
- 
-        /* Simple keys after ':' are allowed in the block context. */ 
- 
-        parser->simple_key_allowed = (!parser->flow_level); 
-    } 
- 
-    /* Consume the token. */ 
- 
-    start_mark = parser->mark; 
-    SKIP(parser); 
-    end_mark = parser->mark; 
- 
-    /* Create the VALUE token and append it to the queue. */ 
- 
-    TOKEN_INIT(token, YAML_VALUE_TOKEN, start_mark, end_mark); 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the ALIAS or ANCHOR token. 
- */ 
- 
-static int 
-yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type) 
-{ 
-    yaml_token_t token; 
- 
-    /* An anchor or an alias could be a simple key. */ 
- 
-    if (!yaml_parser_save_simple_key(parser)) 
-        return 0; 
- 
-    /* A simple key cannot follow an anchor or an alias. */ 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Create the ALIAS or ANCHOR token and append it to the queue. */ 
- 
-    if (!yaml_parser_scan_anchor(parser, &token, type)) 
-        return 0; 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) { 
-        yaml_token_delete(&token); 
-        return 0; 
-    } 
-    return 1; 
-} 
- 
-/* 
- * Produce the TAG token. 
- */ 
- 
-static int 
-yaml_parser_fetch_tag(yaml_parser_t *parser) 
-{ 
-    yaml_token_t token; 
- 
-    /* A tag could be a simple key. */ 
- 
-    if (!yaml_parser_save_simple_key(parser)) 
-        return 0; 
- 
-    /* A simple key cannot follow a tag. */ 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Create the TAG token and append it to the queue. */ 
- 
-    if (!yaml_parser_scan_tag(parser, &token)) 
-        return 0; 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) { 
-        yaml_token_delete(&token); 
-        return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens. 
- */ 
- 
-static int 
-yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal) 
-{ 
-    yaml_token_t token; 
- 
-    /* Remove any potential simple keys. */ 
- 
-    if (!yaml_parser_remove_simple_key(parser)) 
-        return 0; 
- 
-    /* A simple key may follow a block scalar. */ 
- 
-    parser->simple_key_allowed = 1; 
- 
-    /* Create the SCALAR token and append it to the queue. */ 
- 
-    if (!yaml_parser_scan_block_scalar(parser, &token, literal)) 
-        return 0; 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) { 
-        yaml_token_delete(&token); 
-        return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens. 
- */ 
- 
-static int 
-yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single) 
-{ 
-    yaml_token_t token; 
- 
-    /* A plain scalar could be a simple key. */ 
- 
-    if (!yaml_parser_save_simple_key(parser)) 
-        return 0; 
- 
-    /* A simple key cannot follow a flow scalar. */ 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Create the SCALAR token and append it to the queue. */ 
- 
-    if (!yaml_parser_scan_flow_scalar(parser, &token, single)) 
-        return 0; 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) { 
-        yaml_token_delete(&token); 
-        return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Produce the SCALAR(...,plain) token. 
- */ 
- 
-static int 
-yaml_parser_fetch_plain_scalar(yaml_parser_t *parser) 
-{ 
-    yaml_token_t token; 
- 
-    /* A plain scalar could be a simple key. */ 
- 
-    if (!yaml_parser_save_simple_key(parser)) 
-        return 0; 
- 
-    /* A simple key cannot follow a flow scalar. */ 
- 
-    parser->simple_key_allowed = 0; 
- 
-    /* Create the SCALAR token and append it to the queue. */ 
- 
-    if (!yaml_parser_scan_plain_scalar(parser, &token)) 
-        return 0; 
- 
-    if (!ENQUEUE(parser, parser->tokens, token)) { 
-        yaml_token_delete(&token); 
-        return 0; 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Eat whitespaces and comments until the next token is found. 
- */ 
- 
-static int 
-yaml_parser_scan_to_next_token(yaml_parser_t *parser) 
-{ 
-    /* Until the next token is not found. */ 
- 
-    while (1) 
-    { 
-        /* Allow the BOM mark to start a line. */ 
- 
-        if (!CACHE(parser, 1)) return 0; 
- 
-        if (parser->mark.column == 0 && IS_BOM(parser->buffer)) 
-            SKIP(parser); 
- 
-        /* 
-         * Eat whitespaces. 
-         * 
-         * Tabs are allowed: 
-         * 
-         *  - in the flow context; 
-         *  - in the block context, but not at the beginning of the line or 
+
+        if (!parser->simple_key_allowed) {
+            return yaml_parser_set_scanner_error(parser, NULL, parser->mark,
+                    "mapping keys are not allowed in this context");
+        }
+
+        /* Add the BLOCK-MAPPING-START token if needed. */
+
+        if (!yaml_parser_roll_indent(parser, parser->mark.column, -1,
+                    YAML_BLOCK_MAPPING_START_TOKEN, parser->mark))
+            return 0;
+    }
+
+    /* Reset any potential simple keys on the current flow level. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    /* Simple keys are allowed after '?' in the block context. */
+
+    parser->simple_key_allowed = (!parser->flow_level);
+
+    /* Consume the token. */
+
+    start_mark = parser->mark;
+    SKIP(parser);
+    end_mark = parser->mark;
+
+    /* Create the KEY token and append it to the queue. */
+
+    TOKEN_INIT(token, YAML_KEY_TOKEN, start_mark, end_mark);
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the VALUE token.
+ */
+
+static int
+yaml_parser_fetch_value(yaml_parser_t *parser)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_token_t token;
+    yaml_simple_key_t *simple_key = parser->simple_keys.top-1;
+
+    /* Have we found a simple key? */
+
+    if (simple_key->possible)
+    {
+
+        /* Create the KEY token and insert it into the queue. */
+
+        TOKEN_INIT(token, YAML_KEY_TOKEN, simple_key->mark, simple_key->mark);
+
+        if (!QUEUE_INSERT(parser, parser->tokens,
+                    simple_key->token_number - parser->tokens_parsed, token))
+            return 0;
+
+        /* In the block context, we may need to add the BLOCK-MAPPING-START token. */
+
+        if (!yaml_parser_roll_indent(parser, simple_key->mark.column,
+                    simple_key->token_number,
+                    YAML_BLOCK_MAPPING_START_TOKEN, simple_key->mark))
+            return 0;
+
+        /* Remove the simple key. */
+
+        simple_key->possible = 0;
+
+        /* A simple key cannot follow another simple key. */
+
+        parser->simple_key_allowed = 0;
+    }
+    else
+    {
+        /* The ':' indicator follows a complex key. */
+
+        /* In the block context, extra checks are required. */
+
+        if (!parser->flow_level)
+        {
+            /* Check if we are allowed to start a complex value. */
+
+            if (!parser->simple_key_allowed) {
+                return yaml_parser_set_scanner_error(parser, NULL, parser->mark,
+                        "mapping values are not allowed in this context");
+            }
+
+            /* Add the BLOCK-MAPPING-START token if needed. */
+
+            if (!yaml_parser_roll_indent(parser, parser->mark.column, -1,
+                        YAML_BLOCK_MAPPING_START_TOKEN, parser->mark))
+                return 0;
+        }
+
+        /* Simple keys after ':' are allowed in the block context. */
+
+        parser->simple_key_allowed = (!parser->flow_level);
+    }
+
+    /* Consume the token. */
+
+    start_mark = parser->mark;
+    SKIP(parser);
+    end_mark = parser->mark;
+
+    /* Create the VALUE token and append it to the queue. */
+
+    TOKEN_INIT(token, YAML_VALUE_TOKEN, start_mark, end_mark);
+
+    if (!ENQUEUE(parser, parser->tokens, token))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Produce the ALIAS or ANCHOR token.
+ */
+
+static int
+yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type)
+{
+    yaml_token_t token;
+
+    /* An anchor or an alias could be a simple key. */
+
+    if (!yaml_parser_save_simple_key(parser))
+        return 0;
+
+    /* A simple key cannot follow an anchor or an alias. */
+
+    parser->simple_key_allowed = 0;
+
+    /* Create the ALIAS or ANCHOR token and append it to the queue. */
+
+    if (!yaml_parser_scan_anchor(parser, &token, type))
+        return 0;
+
+    if (!ENQUEUE(parser, parser->tokens, token)) {
+        yaml_token_delete(&token);
+        return 0;
+    }
+    return 1;
+}
+
+/*
+ * Produce the TAG token.
+ */
+
+static int
+yaml_parser_fetch_tag(yaml_parser_t *parser)
+{
+    yaml_token_t token;
+
+    /* A tag could be a simple key. */
+
+    if (!yaml_parser_save_simple_key(parser))
+        return 0;
+
+    /* A simple key cannot follow a tag. */
+
+    parser->simple_key_allowed = 0;
+
+    /* Create the TAG token and append it to the queue. */
+
+    if (!yaml_parser_scan_tag(parser, &token))
+        return 0;
+
+    if (!ENQUEUE(parser, parser->tokens, token)) {
+        yaml_token_delete(&token);
+        return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens.
+ */
+
+static int
+yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal)
+{
+    yaml_token_t token;
+
+    /* Remove any potential simple keys. */
+
+    if (!yaml_parser_remove_simple_key(parser))
+        return 0;
+
+    /* A simple key may follow a block scalar. */
+
+    parser->simple_key_allowed = 1;
+
+    /* Create the SCALAR token and append it to the queue. */
+
+    if (!yaml_parser_scan_block_scalar(parser, &token, literal))
+        return 0;
+
+    if (!ENQUEUE(parser, parser->tokens, token)) {
+        yaml_token_delete(&token);
+        return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens.
+ */
+
+static int
+yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single)
+{
+    yaml_token_t token;
+
+    /* A plain scalar could be a simple key. */
+
+    if (!yaml_parser_save_simple_key(parser))
+        return 0;
+
+    /* A simple key cannot follow a flow scalar. */
+
+    parser->simple_key_allowed = 0;
+
+    /* Create the SCALAR token and append it to the queue. */
+
+    if (!yaml_parser_scan_flow_scalar(parser, &token, single))
+        return 0;
+
+    if (!ENQUEUE(parser, parser->tokens, token)) {
+        yaml_token_delete(&token);
+        return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Produce the SCALAR(...,plain) token.
+ */
+
+static int
+yaml_parser_fetch_plain_scalar(yaml_parser_t *parser)
+{
+    yaml_token_t token;
+
+    /* A plain scalar could be a simple key. */
+
+    if (!yaml_parser_save_simple_key(parser))
+        return 0;
+
+    /* A simple key cannot follow a flow scalar. */
+
+    parser->simple_key_allowed = 0;
+
+    /* Create the SCALAR token and append it to the queue. */
+
+    if (!yaml_parser_scan_plain_scalar(parser, &token))
+        return 0;
+
+    if (!ENQUEUE(parser, parser->tokens, token)) {
+        yaml_token_delete(&token);
+        return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Eat whitespaces and comments until the next token is found.
+ */
+
+static int
+yaml_parser_scan_to_next_token(yaml_parser_t *parser)
+{
+    /* Until the next token is not found. */
+
+    while (1)
+    {
+        /* Allow the BOM mark to start a line. */
+
+        if (!CACHE(parser, 1)) return 0;
+
+        if (parser->mark.column == 0 && IS_BOM(parser->buffer))
+            SKIP(parser);
+
+        /*
+         * Eat whitespaces.
+         *
+         * Tabs are allowed:
+         *
+         *  - in the flow context;
+         *  - in the block context, but not at the beginning of the line or
          *  after '-', '?', or ':' (complex value).
-         */ 
- 
-        if (!CACHE(parser, 1)) return 0; 
- 
-        while (CHECK(parser->buffer,' ') || 
-                ((parser->flow_level || !parser->simple_key_allowed) && 
-                 CHECK(parser->buffer, '\t'))) { 
-            SKIP(parser); 
-            if (!CACHE(parser, 1)) return 0; 
-        } 
- 
-        /* Eat a comment until a line break. */ 
- 
-        if (CHECK(parser->buffer, '#')) { 
-            while (!IS_BREAKZ(parser->buffer)) { 
-                SKIP(parser); 
-                if (!CACHE(parser, 1)) return 0; 
-            } 
-        } 
- 
-        /* If it is a line break, eat it. */ 
- 
-        if (IS_BREAK(parser->buffer)) 
-        { 
-            if (!CACHE(parser, 2)) return 0; 
-            SKIP_LINE(parser); 
- 
-            /* In the block context, a new line may start a simple key. */ 
- 
-            if (!parser->flow_level) { 
-                parser->simple_key_allowed = 1; 
-            } 
-        } 
-        else 
-        { 
-            /* We have found a token. */ 
- 
-            break; 
-        } 
-    } 
- 
-    return 1; 
-} 
- 
-/* 
- * Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token. 
- * 
- * Scope: 
- *      %YAML    1.1    # a comment \n 
- *      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
- *      %TAG    !yaml!  tag:yaml.org,2002:  \n 
- *      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
- */ 
- 
-int 
-yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token) 
-{ 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_char_t *name = NULL; 
-    int major, minor; 
-    yaml_char_t *handle = NULL, *prefix = NULL; 
- 
-    /* Eat '%'. */ 
- 
-    start_mark = parser->mark; 
- 
-    SKIP(parser); 
- 
-    /* Scan the directive name. */ 
- 
-    if (!yaml_parser_scan_directive_name(parser, start_mark, &name)) 
-        goto error; 
- 
-    /* Is it a YAML directive? */ 
- 
-    if (strcmp((char *)name, "YAML") == 0) 
-    { 
-        /* Scan the VERSION directive value. */ 
- 
-        if (!yaml_parser_scan_version_directive_value(parser, start_mark, 
-                    &major, &minor)) 
-            goto error; 
- 
-        end_mark = parser->mark; 
- 
-        /* Create a VERSION-DIRECTIVE token. */ 
- 
-        VERSION_DIRECTIVE_TOKEN_INIT(*token, major, minor, 
-                start_mark, end_mark); 
-    } 
- 
-    /* Is it a TAG directive? */ 
- 
-    else if (strcmp((char *)name, "TAG") == 0) 
-    { 
-        /* Scan the TAG directive value. */ 
- 
-        if (!yaml_parser_scan_tag_directive_value(parser, start_mark, 
-                    &handle, &prefix)) 
-            goto error; 
- 
-        end_mark = parser->mark; 
- 
-        /* Create a TAG-DIRECTIVE token. */ 
- 
-        TAG_DIRECTIVE_TOKEN_INIT(*token, handle, prefix, 
-                start_mark, end_mark); 
-    } 
- 
-    /* Unknown directive. */ 
- 
-    else 
-    { 
-        yaml_parser_set_scanner_error(parser, "while scanning a directive", 
+         */
+
+        if (!CACHE(parser, 1)) return 0;
+
+        while (CHECK(parser->buffer,' ') ||
+                ((parser->flow_level || !parser->simple_key_allowed) &&
+                 CHECK(parser->buffer, '\t'))) {
+            SKIP(parser);
+            if (!CACHE(parser, 1)) return 0;
+        }
+
+        /* Eat a comment until a line break. */
+
+        if (CHECK(parser->buffer, '#')) {
+            while (!IS_BREAKZ(parser->buffer)) {
+                SKIP(parser);
+                if (!CACHE(parser, 1)) return 0;
+            }
+        }
+
+        /* If it is a line break, eat it. */
+
+        if (IS_BREAK(parser->buffer))
+        {
+            if (!CACHE(parser, 2)) return 0;
+            SKIP_LINE(parser);
+
+            /* In the block context, a new line may start a simple key. */
+
+            if (!parser->flow_level) {
+                parser->simple_key_allowed = 1;
+            }
+        }
+        else
+        {
+            /* We have found a token. */
+
+            break;
+        }
+    }
+
+    return 1;
+}
+
+/*
+ * Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token.
+ *
+ * Scope:
+ *      %YAML    1.1    # a comment \n
+ *      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *      %TAG    !yaml!  tag:yaml.org,2002:  \n
+ *      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ */
+
+int
+yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token)
+{
+    yaml_mark_t start_mark, end_mark;
+    yaml_char_t *name = NULL;
+    int major, minor;
+    yaml_char_t *handle = NULL, *prefix = NULL;
+
+    /* Eat '%'. */
+
+    start_mark = parser->mark;
+
+    SKIP(parser);
+
+    /* Scan the directive name. */
+
+    if (!yaml_parser_scan_directive_name(parser, start_mark, &name))
+        goto error;
+
+    /* Is it a YAML directive? */
+
+    if (strcmp((char *)name, "YAML") == 0)
+    {
+        /* Scan the VERSION directive value. */
+
+        if (!yaml_parser_scan_version_directive_value(parser, start_mark,
+                    &major, &minor))
+            goto error;
+
+        end_mark = parser->mark;
+
+        /* Create a VERSION-DIRECTIVE token. */
+
+        VERSION_DIRECTIVE_TOKEN_INIT(*token, major, minor,
+                start_mark, end_mark);
+    }
+
+    /* Is it a TAG directive? */
+
+    else if (strcmp((char *)name, "TAG") == 0)
+    {
+        /* Scan the TAG directive value. */
+
+        if (!yaml_parser_scan_tag_directive_value(parser, start_mark,
+                    &handle, &prefix))
+            goto error;
+
+        end_mark = parser->mark;
+
+        /* Create a TAG-DIRECTIVE token. */
+
+        TAG_DIRECTIVE_TOKEN_INIT(*token, handle, prefix,
+                start_mark, end_mark);
+    }
+
+    /* Unknown directive. */
+
+    else
+    {
+        yaml_parser_set_scanner_error(parser, "while scanning a directive",
                 start_mark, "found unknown directive name");
-        goto error; 
-    } 
- 
-    /* Eat the rest of the line including any comments. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    while (IS_BLANK(parser->buffer)) { 
-        SKIP(parser); 
-        if (!CACHE(parser, 1)) goto error; 
-    } 
- 
-    if (CHECK(parser->buffer, '#')) { 
-        while (!IS_BREAKZ(parser->buffer)) { 
-            SKIP(parser); 
-            if (!CACHE(parser, 1)) goto error; 
-        } 
-    } 
- 
-    /* Check if we are at the end of the line. */ 
- 
-    if (!IS_BREAKZ(parser->buffer)) { 
-        yaml_parser_set_scanner_error(parser, "while scanning a directive", 
-                start_mark, "did not find expected comment or line break"); 
-        goto error; 
-    } 
- 
-    /* Eat a line break. */ 
- 
-    if (IS_BREAK(parser->buffer)) { 
-        if (!CACHE(parser, 2)) goto error; 
-        SKIP_LINE(parser); 
-    } 
- 
-    yaml_free(name); 
- 
-    return 1; 
- 
-error: 
-    yaml_free(prefix); 
-    yaml_free(handle); 
-    yaml_free(name); 
-    return 0; 
-} 
- 
-/* 
- * Scan the directive name. 
- * 
- * Scope: 
- *      %YAML   1.1     # a comment \n 
- *       ^^^^ 
- *      %TAG    !yaml!  tag:yaml.org,2002:  \n 
- *       ^^^ 
- */ 
- 
-static int 
-yaml_parser_scan_directive_name(yaml_parser_t *parser, 
-        yaml_mark_t start_mark, yaml_char_t **name) 
-{ 
-    yaml_string_t string = NULL_STRING; 
- 
-    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; 
- 
-    /* Consume the directive name. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    while (IS_ALPHA(parser->buffer)) 
-    { 
-        if (!READ(parser, string)) goto error; 
-        if (!CACHE(parser, 1)) goto error; 
-    } 
- 
-    /* Check if the name is empty. */ 
- 
-    if (string.start == string.pointer) { 
-        yaml_parser_set_scanner_error(parser, "while scanning a directive", 
-                start_mark, "could not find expected directive name"); 
-        goto error; 
-    } 
- 
-    /* Check for an blank character after the name. */ 
- 
-    if (!IS_BLANKZ(parser->buffer)) { 
-        yaml_parser_set_scanner_error(parser, "while scanning a directive", 
-                start_mark, "found unexpected non-alphabetical character"); 
-        goto error; 
-    } 
- 
-    *name = string.start; 
- 
-    return 1; 
- 
-error: 
-    STRING_DEL(parser, string); 
-    return 0; 
-} 
- 
-/* 
- * Scan the value of VERSION-DIRECTIVE. 
- * 
- * Scope: 
- *      %YAML   1.1     # a comment \n 
- *           ^^^^^^ 
- */ 
- 
-static int 
-yaml_parser_scan_version_directive_value(yaml_parser_t *parser, 
-        yaml_mark_t start_mark, int *major, int *minor) 
-{ 
-    /* Eat whitespaces. */ 
- 
-    if (!CACHE(parser, 1)) return 0; 
- 
-    while (IS_BLANK(parser->buffer)) { 
-        SKIP(parser); 
-        if (!CACHE(parser, 1)) return 0; 
-    } 
- 
-    /* Consume the major version number. */ 
- 
-    if (!yaml_parser_scan_version_directive_number(parser, start_mark, major)) 
-        return 0; 
- 
-    /* Eat '.'. */ 
- 
-    if (!CHECK(parser->buffer, '.')) { 
-        return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", 
-                start_mark, "did not find expected digit or '.' character"); 
-    } 
- 
-    SKIP(parser); 
- 
-    /* Consume the minor version number. */ 
- 
-    if (!yaml_parser_scan_version_directive_number(parser, start_mark, minor)) 
-        return 0; 
- 
-    return 1; 
-} 
- 
-#define MAX_NUMBER_LENGTH   9 
- 
-/* 
- * Scan the version number of VERSION-DIRECTIVE. 
- * 
- * Scope: 
- *      %YAML   1.1     # a comment \n 
- *              ^ 
- *      %YAML   1.1     # a comment \n 
- *                ^ 
- */ 
- 
-static int 
-yaml_parser_scan_version_directive_number(yaml_parser_t *parser, 
-        yaml_mark_t start_mark, int *number) 
-{ 
-    int value = 0; 
-    size_t length = 0; 
- 
-    /* Repeat while the next character is digit. */ 
- 
-    if (!CACHE(parser, 1)) return 0; 
- 
-    while (IS_DIGIT(parser->buffer)) 
-    { 
-        /* Check if the number is too long. */ 
- 
-        if (++length > MAX_NUMBER_LENGTH) { 
-            return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", 
-                    start_mark, "found extremely long version number"); 
-        } 
- 
-        value = value*10 + AS_DIGIT(parser->buffer); 
- 
-        SKIP(parser); 
- 
-        if (!CACHE(parser, 1)) return 0; 
-    } 
- 
-    /* Check if the number was present. */ 
- 
-    if (!length) { 
-        return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", 
-                start_mark, "did not find expected version number"); 
-    } 
- 
-    *number = value; 
- 
-    return 1; 
-} 
- 
-/* 
- * Scan the value of a TAG-DIRECTIVE token. 
- * 
- * Scope: 
- *      %TAG    !yaml!  tag:yaml.org,2002:  \n 
- *          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
- */ 
- 
-static int 
-yaml_parser_scan_tag_directive_value(yaml_parser_t *parser, 
-        yaml_mark_t start_mark, yaml_char_t **handle, yaml_char_t **prefix) 
-{ 
-    yaml_char_t *handle_value = NULL; 
-    yaml_char_t *prefix_value = NULL; 
- 
-    /* Eat whitespaces. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    while (IS_BLANK(parser->buffer)) { 
-        SKIP(parser); 
-        if (!CACHE(parser, 1)) goto error; 
-    } 
- 
-    /* Scan a handle. */ 
- 
-    if (!yaml_parser_scan_tag_handle(parser, 1, start_mark, &handle_value)) 
-        goto error; 
- 
-    /* Expect a whitespace. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    if (!IS_BLANK(parser->buffer)) { 
-        yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", 
-                start_mark, "did not find expected whitespace"); 
-        goto error; 
-    } 
- 
-    /* Eat whitespaces. */ 
- 
-    while (IS_BLANK(parser->buffer)) { 
-        SKIP(parser); 
-        if (!CACHE(parser, 1)) goto error; 
-    } 
- 
-    /* Scan a prefix. */ 
- 
+        goto error;
+    }
+
+    /* Eat the rest of the line including any comments. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    while (IS_BLANK(parser->buffer)) {
+        SKIP(parser);
+        if (!CACHE(parser, 1)) goto error;
+    }
+
+    if (CHECK(parser->buffer, '#')) {
+        while (!IS_BREAKZ(parser->buffer)) {
+            SKIP(parser);
+            if (!CACHE(parser, 1)) goto error;
+        }
+    }
+
+    /* Check if we are at the end of the line. */
+
+    if (!IS_BREAKZ(parser->buffer)) {
+        yaml_parser_set_scanner_error(parser, "while scanning a directive",
+                start_mark, "did not find expected comment or line break");
+        goto error;
+    }
+
+    /* Eat a line break. */
+
+    if (IS_BREAK(parser->buffer)) {
+        if (!CACHE(parser, 2)) goto error;
+        SKIP_LINE(parser);
+    }
+
+    yaml_free(name);
+
+    return 1;
+
+error:
+    yaml_free(prefix);
+    yaml_free(handle);
+    yaml_free(name);
+    return 0;
+}
+
+/*
+ * Scan the directive name.
+ *
+ * Scope:
+ *      %YAML   1.1     # a comment \n
+ *       ^^^^
+ *      %TAG    !yaml!  tag:yaml.org,2002:  \n
+ *       ^^^
+ */
+
+static int
+yaml_parser_scan_directive_name(yaml_parser_t *parser,
+        yaml_mark_t start_mark, yaml_char_t **name)
+{
+    yaml_string_t string = NULL_STRING;
+
+    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;
+
+    /* Consume the directive name. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    while (IS_ALPHA(parser->buffer))
+    {
+        if (!READ(parser, string)) goto error;
+        if (!CACHE(parser, 1)) goto error;
+    }
+
+    /* Check if the name is empty. */
+
+    if (string.start == string.pointer) {
+        yaml_parser_set_scanner_error(parser, "while scanning a directive",
+                start_mark, "could not find expected directive name");
+        goto error;
+    }
+
+    /* Check for an blank character after the name. */
+
+    if (!IS_BLANKZ(parser->buffer)) {
+        yaml_parser_set_scanner_error(parser, "while scanning a directive",
+                start_mark, "found unexpected non-alphabetical character");
+        goto error;
+    }
+
+    *name = string.start;
+
+    return 1;
+
+error:
+    STRING_DEL(parser, string);
+    return 0;
+}
+
+/*
+ * Scan the value of VERSION-DIRECTIVE.
+ *
+ * Scope:
+ *      %YAML   1.1     # a comment \n
+ *           ^^^^^^
+ */
+
+static int
+yaml_parser_scan_version_directive_value(yaml_parser_t *parser,
+        yaml_mark_t start_mark, int *major, int *minor)
+{
+    /* Eat whitespaces. */
+
+    if (!CACHE(parser, 1)) return 0;
+
+    while (IS_BLANK(parser->buffer)) {
+        SKIP(parser);
+        if (!CACHE(parser, 1)) return 0;
+    }
+
+    /* Consume the major version number. */
+
+    if (!yaml_parser_scan_version_directive_number(parser, start_mark, major))
+        return 0;
+
+    /* Eat '.'. */
+
+    if (!CHECK(parser->buffer, '.')) {
+        return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+                start_mark, "did not find expected digit or '.' character");
+    }
+
+    SKIP(parser);
+
+    /* Consume the minor version number. */
+
+    if (!yaml_parser_scan_version_directive_number(parser, start_mark, minor))
+        return 0;
+
+    return 1;
+}
+
+#define MAX_NUMBER_LENGTH   9
+
+/*
+ * Scan the version number of VERSION-DIRECTIVE.
+ *
+ * Scope:
+ *      %YAML   1.1     # a comment \n
+ *              ^
+ *      %YAML   1.1     # a comment \n
+ *                ^
+ */
+
+static int
+yaml_parser_scan_version_directive_number(yaml_parser_t *parser,
+        yaml_mark_t start_mark, int *number)
+{
+    int value = 0;
+    size_t length = 0;
+
+    /* Repeat while the next character is digit. */
+
+    if (!CACHE(parser, 1)) return 0;
+
+    while (IS_DIGIT(parser->buffer))
+    {
+        /* Check if the number is too long. */
+
+        if (++length > MAX_NUMBER_LENGTH) {
+            return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+                    start_mark, "found extremely long version number");
+        }
+
+        value = value*10 + AS_DIGIT(parser->buffer);
+
+        SKIP(parser);
+
+        if (!CACHE(parser, 1)) return 0;
+    }
+
+    /* Check if the number was present. */
+
+    if (!length) {
+        return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+                start_mark, "did not find expected version number");
+    }
+
+    *number = value;
+
+    return 1;
+}
+
+/*
+ * Scan the value of a TAG-DIRECTIVE token.
+ *
+ * Scope:
+ *      %TAG    !yaml!  tag:yaml.org,2002:  \n
+ *          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ */
+
+static int
+yaml_parser_scan_tag_directive_value(yaml_parser_t *parser,
+        yaml_mark_t start_mark, yaml_char_t **handle, yaml_char_t **prefix)
+{
+    yaml_char_t *handle_value = NULL;
+    yaml_char_t *prefix_value = NULL;
+
+    /* Eat whitespaces. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    while (IS_BLANK(parser->buffer)) {
+        SKIP(parser);
+        if (!CACHE(parser, 1)) goto error;
+    }
+
+    /* Scan a handle. */
+
+    if (!yaml_parser_scan_tag_handle(parser, 1, start_mark, &handle_value))
+        goto error;
+
+    /* Expect a whitespace. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    if (!IS_BLANK(parser->buffer)) {
+        yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+                start_mark, "did not find expected whitespace");
+        goto error;
+    }
+
+    /* Eat whitespaces. */
+
+    while (IS_BLANK(parser->buffer)) {
+        SKIP(parser);
+        if (!CACHE(parser, 1)) goto error;
+    }
+
+    /* Scan a prefix. */
+
     if (!yaml_parser_scan_tag_uri(parser, 1, 1, NULL, start_mark, &prefix_value))
-        goto error; 
- 
-    /* Expect a whitespace or line break. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    if (!IS_BLANKZ(parser->buffer)) { 
-        yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", 
-                start_mark, "did not find expected whitespace or line break"); 
-        goto error; 
-    } 
- 
-    *handle = handle_value; 
-    *prefix = prefix_value; 
- 
-    return 1; 
- 
-error: 
-    yaml_free(handle_value); 
-    yaml_free(prefix_value); 
-    return 0; 
-} 
- 
-static int 
-yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token, 
-        yaml_token_type_t type) 
-{ 
-    int length = 0; 
-    yaml_mark_t start_mark, end_mark; 
-    yaml_string_t string = NULL_STRING; 
- 
-    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; 
- 
-    /* Eat the indicator character. */ 
- 
-    start_mark = parser->mark; 
- 
-    SKIP(parser); 
- 
-    /* Consume the value. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    while (IS_ALPHA(parser->buffer)) { 
-        if (!READ(parser, string)) goto error; 
-        if (!CACHE(parser, 1)) goto error; 
-        length ++; 
-    } 
- 
-    end_mark = parser->mark; 
- 
-    /* 
-     * Check if length of the anchor is greater than 0 and it is followed by 
-     * a whitespace character or one of the indicators: 
-     * 
-     *      '?', ':', ',', ']', '}', '%', '@', '`'. 
-     */ 
- 
-    if (!length || !(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '?') 
-                || CHECK(parser->buffer, ':') || CHECK(parser->buffer, ',') 
-                || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '}') 
-                || CHECK(parser->buffer, '%') || CHECK(parser->buffer, '@') 
-                || CHECK(parser->buffer, '`'))) { 
-        yaml_parser_set_scanner_error(parser, type == YAML_ANCHOR_TOKEN ? 
-                "while scanning an anchor" : "while scanning an alias", start_mark, 
-                "did not find expected alphabetic or numeric character"); 
-        goto error; 
-    } 
- 
-    /* Create a token. */ 
- 
-    if (type == YAML_ANCHOR_TOKEN) { 
-        ANCHOR_TOKEN_INIT(*token, string.start, start_mark, end_mark); 
-    } 
-    else { 
-        ALIAS_TOKEN_INIT(*token, string.start, start_mark, end_mark); 
-    } 
- 
-    return 1; 
- 
-error: 
-    STRING_DEL(parser, string); 
-    return 0; 
-} 
- 
-/* 
- * Scan a TAG token. 
- */ 
- 
-static int 
-yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token) 
-{ 
-    yaml_char_t *handle = NULL; 
-    yaml_char_t *suffix = NULL; 
-    yaml_mark_t start_mark, end_mark; 
- 
-    start_mark = parser->mark; 
- 
-    /* Check if the tag is in the canonical form. */ 
- 
-    if (!CACHE(parser, 2)) goto error; 
- 
-    if (CHECK_AT(parser->buffer, '<', 1)) 
-    { 
-        /* Set the handle to '' */ 
- 
+        goto error;
+
+    /* Expect a whitespace or line break. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    if (!IS_BLANKZ(parser->buffer)) {
+        yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+                start_mark, "did not find expected whitespace or line break");
+        goto error;
+    }
+
+    *handle = handle_value;
+    *prefix = prefix_value;
+
+    return 1;
+
+error:
+    yaml_free(handle_value);
+    yaml_free(prefix_value);
+    return 0;
+}
+
+static int
+yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token,
+        yaml_token_type_t type)
+{
+    int length = 0;
+    yaml_mark_t start_mark, end_mark;
+    yaml_string_t string = NULL_STRING;
+
+    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;
+
+    /* Eat the indicator character. */
+
+    start_mark = parser->mark;
+
+    SKIP(parser);
+
+    /* Consume the value. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    while (IS_ALPHA(parser->buffer)) {
+        if (!READ(parser, string)) goto error;
+        if (!CACHE(parser, 1)) goto error;
+        length ++;
+    }
+
+    end_mark = parser->mark;
+
+    /*
+     * Check if length of the anchor is greater than 0 and it is followed by
+     * a whitespace character or one of the indicators:
+     *
+     *      '?', ':', ',', ']', '}', '%', '@', '`'.
+     */
+
+    if (!length || !(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '?')
+                || CHECK(parser->buffer, ':') || CHECK(parser->buffer, ',')
+                || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '}')
+                || CHECK(parser->buffer, '%') || CHECK(parser->buffer, '@')
+                || CHECK(parser->buffer, '`'))) {
+        yaml_parser_set_scanner_error(parser, type == YAML_ANCHOR_TOKEN ?
+                "while scanning an anchor" : "while scanning an alias", start_mark,
+                "did not find expected alphabetic or numeric character");
+        goto error;
+    }
+
+    /* Create a token. */
+
+    if (type == YAML_ANCHOR_TOKEN) {
+        ANCHOR_TOKEN_INIT(*token, string.start, start_mark, end_mark);
+    }
+    else {
+        ALIAS_TOKEN_INIT(*token, string.start, start_mark, end_mark);
+    }
+
+    return 1;
+
+error:
+    STRING_DEL(parser, string);
+    return 0;
+}
+
+/*
+ * Scan a TAG token.
+ */
+
+static int
+yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token)
+{
+    yaml_char_t *handle = NULL;
+    yaml_char_t *suffix = NULL;
+    yaml_mark_t start_mark, end_mark;
+
+    start_mark = parser->mark;
+
+    /* Check if the tag is in the canonical form. */
+
+    if (!CACHE(parser, 2)) goto error;
+
+    if (CHECK_AT(parser->buffer, '<', 1))
+    {
+        /* Set the handle to '' */
+
         handle = YAML_MALLOC(1);
-        if (!handle) goto error; 
-        handle[0] = '\0'; 
- 
-        /* Eat '!<' */ 
- 
-        SKIP(parser); 
-        SKIP(parser); 
- 
-        /* Consume the tag value. */ 
- 
+        if (!handle) goto error;
+        handle[0] = '\0';
+
+        /* Eat '!<' */
+
+        SKIP(parser);
+        SKIP(parser);
+
+        /* Consume the tag value. */
+
         if (!yaml_parser_scan_tag_uri(parser, 1, 0, NULL, start_mark, &suffix))
-            goto error; 
- 
-        /* Check for '>' and eat it. */ 
- 
-        if (!CHECK(parser->buffer, '>')) { 
-            yaml_parser_set_scanner_error(parser, "while scanning a tag", 
-                    start_mark, "did not find the expected '>'"); 
-            goto error; 
-        } 
- 
-        SKIP(parser); 
-    } 
-    else 
-    { 
-        /* The tag has either the '!suffix' or the '!handle!suffix' form. */ 
- 
-        /* First, try to scan a handle. */ 
- 
-        if (!yaml_parser_scan_tag_handle(parser, 0, start_mark, &handle)) 
-            goto error; 
- 
-        /* Check if it is, indeed, handle. */ 
- 
-        if (handle[0] == '!' && handle[1] != '\0' && handle[strlen((char *)handle)-1] == '!') 
-        { 
-            /* Scan the suffix now. */ 
- 
+            goto error;
+
+        /* Check for '>' and eat it. */
+
+        if (!CHECK(parser->buffer, '>')) {
+            yaml_parser_set_scanner_error(parser, "while scanning a tag",
+                    start_mark, "did not find the expected '>'");
+            goto error;
+        }
+
+        SKIP(parser);
+    }
+    else
+    {
+        /* The tag has either the '!suffix' or the '!handle!suffix' form. */
+
+        /* First, try to scan a handle. */
+
+        if (!yaml_parser_scan_tag_handle(parser, 0, start_mark, &handle))
+            goto error;
+
+        /* Check if it is, indeed, handle. */
+
+        if (handle[0] == '!' && handle[1] != '\0' && handle[strlen((char *)handle)-1] == '!')
+        {
+            /* Scan the suffix now. */
+
             if (!yaml_parser_scan_tag_uri(parser, 0, 0, NULL, start_mark, &suffix))
-                goto error; 
-        } 
-        else 
-        { 
-            /* It wasn't a handle after all.  Scan the rest of the tag. */ 
- 
+                goto error;
+        }
+        else
+        {
+            /* It wasn't a handle after all.  Scan the rest of the tag. */
+
             if (!yaml_parser_scan_tag_uri(parser, 0, 0, handle, start_mark, &suffix))
-                goto error; 
- 
-            /* Set the handle to '!'. */ 
- 
-            yaml_free(handle); 
+                goto error;
+
+            /* Set the handle to '!'. */
+
+            yaml_free(handle);
             handle = YAML_MALLOC(2);
-            if (!handle) goto error; 
-            handle[0] = '!'; 
-            handle[1] = '\0'; 
- 
-            /* 
-             * A special case: the '!' tag.  Set the handle to '' and the 
-             * suffix to '!'. 
-             */ 
- 
-            if (suffix[0] == '\0') { 
-                yaml_char_t *tmp = handle; 
-                handle = suffix; 
-                suffix = tmp; 
-            } 
-        } 
-    } 
- 
-    /* Check the character which ends the tag. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    if (!IS_BLANKZ(parser->buffer)) { 
+            if (!handle) goto error;
+            handle[0] = '!';
+            handle[1] = '\0';
+
+            /*
+             * A special case: the '!' tag.  Set the handle to '' and the
+             * suffix to '!'.
+             */
+
+            if (suffix[0] == '\0') {
+                yaml_char_t *tmp = handle;
+                handle = suffix;
+                suffix = tmp;
+            }
+        }
+    }
+
+    /* Check the character which ends the tag. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    if (!IS_BLANKZ(parser->buffer)) {
         if (!parser->flow_level || !CHECK(parser->buffer, ',') ) {
             yaml_parser_set_scanner_error(parser, "while scanning a tag",
                     start_mark, "did not find expected whitespace or line break");
             goto error;
         }
-    } 
- 
-    end_mark = parser->mark; 
- 
-    /* Create a token. */ 
- 
-    TAG_TOKEN_INIT(*token, handle, suffix, start_mark, end_mark); 
- 
-    return 1; 
- 
-error: 
-    yaml_free(handle); 
-    yaml_free(suffix); 
-    return 0; 
-} 
- 
-/* 
- * Scan a tag handle. 
- */ 
- 
-static int 
-yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive, 
-        yaml_mark_t start_mark, yaml_char_t **handle) 
-{ 
-    yaml_string_t string = NULL_STRING; 
- 
-    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; 
- 
-    /* Check the initial '!' character. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    if (!CHECK(parser->buffer, '!')) { 
-        yaml_parser_set_scanner_error(parser, directive ? 
-                "while scanning a tag directive" : "while scanning a tag", 
-                start_mark, "did not find expected '!'"); 
-        goto error; 
-    } 
- 
-    /* Copy the '!' character. */ 
- 
-    if (!READ(parser, string)) goto error; 
- 
-    /* Copy all subsequent alphabetical and numerical characters. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    while (IS_ALPHA(parser->buffer)) 
-    { 
-        if (!READ(parser, string)) goto error; 
-        if (!CACHE(parser, 1)) goto error; 
-    } 
- 
-    /* Check if the trailing character is '!' and copy it. */ 
- 
-    if (CHECK(parser->buffer, '!')) 
-    { 
-        if (!READ(parser, string)) goto error; 
-    } 
-    else 
-    { 
-        /* 
-         * It's either the '!' tag or not really a tag handle.  If it's a %TAG 
-         * directive, it's an error.  If it's a tag token, it must be a part of 
-         * URI. 
-         */ 
- 
-        if (directive && !(string.start[0] == '!' && string.start[1] == '\0')) { 
-            yaml_parser_set_scanner_error(parser, "while parsing a tag directive", 
-                    start_mark, "did not find expected '!'"); 
-            goto error; 
-        } 
-    } 
- 
-    *handle = string.start; 
- 
-    return 1; 
- 
-error: 
-    STRING_DEL(parser, string); 
-    return 0; 
-} 
- 
-/* 
- * Scan a tag. 
- */ 
- 
-static int 
+    }
+
+    end_mark = parser->mark;
+
+    /* Create a token. */
+
+    TAG_TOKEN_INIT(*token, handle, suffix, start_mark, end_mark);
+
+    return 1;
+
+error:
+    yaml_free(handle);
+    yaml_free(suffix);
+    return 0;
+}
+
+/*
+ * Scan a tag handle.
+ */
+
+static int
+yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive,
+        yaml_mark_t start_mark, yaml_char_t **handle)
+{
+    yaml_string_t string = NULL_STRING;
+
+    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;
+
+    /* Check the initial '!' character. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    if (!CHECK(parser->buffer, '!')) {
+        yaml_parser_set_scanner_error(parser, directive ?
+                "while scanning a tag directive" : "while scanning a tag",
+                start_mark, "did not find expected '!'");
+        goto error;
+    }
+
+    /* Copy the '!' character. */
+
+    if (!READ(parser, string)) goto error;
+
+    /* Copy all subsequent alphabetical and numerical characters. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    while (IS_ALPHA(parser->buffer))
+    {
+        if (!READ(parser, string)) goto error;
+        if (!CACHE(parser, 1)) goto error;
+    }
+
+    /* Check if the trailing character is '!' and copy it. */
+
+    if (CHECK(parser->buffer, '!'))
+    {
+        if (!READ(parser, string)) goto error;
+    }
+    else
+    {
+        /*
+         * It's either the '!' tag or not really a tag handle.  If it's a %TAG
+         * directive, it's an error.  If it's a tag token, it must be a part of
+         * URI.
+         */
+
+        if (directive && !(string.start[0] == '!' && string.start[1] == '\0')) {
+            yaml_parser_set_scanner_error(parser, "while parsing a tag directive",
+                    start_mark, "did not find expected '!'");
+            goto error;
+        }
+    }
+
+    *handle = string.start;
+
+    return 1;
+
+error:
+    STRING_DEL(parser, string);
+    return 0;
+}
+
+/*
+ * Scan a tag.
+ */
+
+static int
 yaml_parser_scan_tag_uri(yaml_parser_t *parser, int uri_char, int directive,
-        yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri) 
-{ 
-    size_t length = head ? strlen((char *)head) : 0; 
-    yaml_string_t string = NULL_STRING; 
- 
-    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; 
- 
-    /* Resize the string to include the head. */ 
- 
-    while ((size_t)(string.end - string.start) <= length) { 
-        if (!yaml_string_extend(&string.start, &string.pointer, &string.end)) { 
-            parser->error = YAML_MEMORY_ERROR; 
-            goto error; 
-        } 
-    } 
- 
-    /* 
-     * Copy the head if needed. 
-     * 
-     * Note that we don't copy the leading '!' character. 
-     */ 
- 
-    if (length > 1) { 
-        memcpy(string.start, head+1, length-1); 
-        string.pointer += length-1; 
-    } 
- 
-    /* Scan the tag. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    /* 
-     * The set of characters that may appear in URI is as follows: 
-     * 
-     *      '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&', 
+        yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri)
+{
+    size_t length = head ? strlen((char *)head) : 0;
+    yaml_string_t string = NULL_STRING;
+
+    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;
+
+    /* Resize the string to include the head. */
+
+    while ((size_t)(string.end - string.start) <= length) {
+        if (!yaml_string_extend(&string.start, &string.pointer, &string.end)) {
+            parser->error = YAML_MEMORY_ERROR;
+            goto error;
+        }
+    }
+
+    /*
+     * Copy the head if needed.
+     *
+     * Note that we don't copy the leading '!' character.
+     */
+
+    if (length > 1) {
+        memcpy(string.start, head+1, length-1);
+        string.pointer += length-1;
+    }
+
+    /* Scan the tag. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    /*
+     * The set of characters that may appear in URI is as follows:
+     *
+     *      '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',
      *      '=', '+', '$', '.', '!', '~', '*', '\'', '(', ')', '%'.
      *
      * If we are inside a verbatim tag <...> (parameter uri_char is true)
      * then also the following flow indicators are allowed:
      *      ',', '[', ']'
-     */ 
- 
-    while (IS_ALPHA(parser->buffer) || CHECK(parser->buffer, ';') 
-            || CHECK(parser->buffer, '/') || CHECK(parser->buffer, '?') 
-            || CHECK(parser->buffer, ':') || CHECK(parser->buffer, '@') 
-            || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '=') 
-            || CHECK(parser->buffer, '+') || CHECK(parser->buffer, '$') 
+     */
+
+    while (IS_ALPHA(parser->buffer) || CHECK(parser->buffer, ';')
+            || CHECK(parser->buffer, '/') || CHECK(parser->buffer, '?')
+            || CHECK(parser->buffer, ':') || CHECK(parser->buffer, '@')
+            || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '=')
+            || CHECK(parser->buffer, '+') || CHECK(parser->buffer, '$')
             || CHECK(parser->buffer, '.') || CHECK(parser->buffer, '%')
-            || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '~') 
-            || CHECK(parser->buffer, '*') || CHECK(parser->buffer, '\'') 
-            || CHECK(parser->buffer, '(') || CHECK(parser->buffer, ')') 
+            || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '~')
+            || CHECK(parser->buffer, '*') || CHECK(parser->buffer, '\'')
+            || CHECK(parser->buffer, '(') || CHECK(parser->buffer, ')')
             || (uri_char && (
                 CHECK(parser->buffer, ',')
                 || CHECK(parser->buffer, '[') || CHECK(parser->buffer, ']')
                 )
             ))
-    { 
-        /* Check if it is a URI-escape sequence. */ 
- 
-        if (CHECK(parser->buffer, '%')) { 
+    {
+        /* Check if it is a URI-escape sequence. */
+
+        if (CHECK(parser->buffer, '%')) {
             if (!STRING_EXTEND(parser, string))
                 goto error;
 
-            if (!yaml_parser_scan_uri_escapes(parser, 
-                        directive, start_mark, &string)) goto error; 
-        } 
-        else { 
-            if (!READ(parser, string)) goto error; 
-        } 
- 
-        length ++; 
-        if (!CACHE(parser, 1)) goto error; 
-    } 
- 
-    /* Check if the tag is non-empty. */ 
- 
-    if (!length) { 
-        if (!STRING_EXTEND(parser, string)) 
-            goto error; 
- 
-        yaml_parser_set_scanner_error(parser, directive ? 
-                "while parsing a %TAG directive" : "while parsing a tag", 
-                start_mark, "did not find expected tag URI"); 
-        goto error; 
-    } 
- 
-    *uri = string.start; 
- 
-    return 1; 
- 
-error: 
-    STRING_DEL(parser, string); 
-    return 0; 
-} 
- 
-/* 
- * Decode an URI-escape sequence corresponding to a single UTF-8 character. 
- */ 
- 
-static int 
-yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive, 
-        yaml_mark_t start_mark, yaml_string_t *string) 
-{ 
-    int width = 0; 
- 
-    /* Decode the required number of characters. */ 
- 
-    do { 
- 
-        unsigned char octet = 0; 
- 
-        /* Check for a URI-escaped octet. */ 
- 
-        if (!CACHE(parser, 3)) return 0; 
- 
-        if (!(CHECK(parser->buffer, '%') 
-                    && IS_HEX_AT(parser->buffer, 1) 
-                    && IS_HEX_AT(parser->buffer, 2))) { 
-            return yaml_parser_set_scanner_error(parser, directive ? 
-                    "while parsing a %TAG directive" : "while parsing a tag", 
-                    start_mark, "did not find URI escaped octet"); 
-        } 
- 
-        /* Get the octet. */ 
- 
-        octet = (AS_HEX_AT(parser->buffer, 1) << 4) + AS_HEX_AT(parser->buffer, 2); 
- 
-        /* If it is the leading octet, determine the length of the UTF-8 sequence. */ 
- 
-        if (!width) 
-        { 
-            width = (octet & 0x80) == 0x00 ? 1 : 
-                    (octet & 0xE0) == 0xC0 ? 2 : 
-                    (octet & 0xF0) == 0xE0 ? 3 : 
-                    (octet & 0xF8) == 0xF0 ? 4 : 0; 
-            if (!width) { 
-                return yaml_parser_set_scanner_error(parser, directive ? 
-                        "while parsing a %TAG directive" : "while parsing a tag", 
-                        start_mark, "found an incorrect leading UTF-8 octet"); 
-            } 
-        } 
-        else 
-        { 
-            /* Check if the trailing octet is correct. */ 
- 
-            if ((octet & 0xC0) != 0x80) { 
-                return yaml_parser_set_scanner_error(parser, directive ? 
-                        "while parsing a %TAG directive" : "while parsing a tag", 
-                        start_mark, "found an incorrect trailing UTF-8 octet"); 
-            } 
-        } 
- 
-        /* Copy the octet and move the pointers. */ 
- 
-        *(string->pointer++) = octet; 
-        SKIP(parser); 
-        SKIP(parser); 
-        SKIP(parser); 
- 
-    } while (--width); 
- 
-    return 1; 
-} 
- 
-/* 
- * Scan a block scalar. 
- */ 
- 
-static int 
-yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token, 
-        int literal) 
-{ 
-    yaml_mark_t start_mark; 
-    yaml_mark_t end_mark; 
-    yaml_string_t string = NULL_STRING; 
-    yaml_string_t leading_break = NULL_STRING; 
-    yaml_string_t trailing_breaks = NULL_STRING; 
-    int chomping = 0; 
-    int increment = 0; 
-    int indent = 0; 
-    int leading_blank = 0; 
-    int trailing_blank = 0; 
- 
-    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error; 
- 
-    /* Eat the indicator '|' or '>'. */ 
- 
-    start_mark = parser->mark; 
- 
-    SKIP(parser); 
- 
-    /* Scan the additional block scalar indicators. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    /* Check for a chomping indicator. */ 
- 
-    if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-')) 
-    { 
-        /* Set the chomping method and eat the indicator. */ 
- 
-        chomping = CHECK(parser->buffer, '+') ? +1 : -1; 
- 
-        SKIP(parser); 
- 
-        /* Check for an indentation indicator. */ 
- 
-        if (!CACHE(parser, 1)) goto error; 
- 
-        if (IS_DIGIT(parser->buffer)) 
-        { 
+            if (!yaml_parser_scan_uri_escapes(parser,
+                        directive, start_mark, &string)) goto error;
+        }
+        else {
+            if (!READ(parser, string)) goto error;
+        }
+
+        length ++;
+        if (!CACHE(parser, 1)) goto error;
+    }
+
+    /* Check if the tag is non-empty. */
+
+    if (!length) {
+        if (!STRING_EXTEND(parser, string))
+            goto error;
+
+        yaml_parser_set_scanner_error(parser, directive ?
+                "while parsing a %TAG directive" : "while parsing a tag",
+                start_mark, "did not find expected tag URI");
+        goto error;
+    }
+
+    *uri = string.start;
+
+    return 1;
+
+error:
+    STRING_DEL(parser, string);
+    return 0;
+}
+
+/*
+ * Decode an URI-escape sequence corresponding to a single UTF-8 character.
+ */
+
+static int
+yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive,
+        yaml_mark_t start_mark, yaml_string_t *string)
+{
+    int width = 0;
+
+    /* Decode the required number of characters. */
+
+    do {
+
+        unsigned char octet = 0;
+
+        /* Check for a URI-escaped octet. */
+
+        if (!CACHE(parser, 3)) return 0;
+
+        if (!(CHECK(parser->buffer, '%')
+                    && IS_HEX_AT(parser->buffer, 1)
+                    && IS_HEX_AT(parser->buffer, 2))) {
+            return yaml_parser_set_scanner_error(parser, directive ?
+                    "while parsing a %TAG directive" : "while parsing a tag",
+                    start_mark, "did not find URI escaped octet");
+        }
+
+        /* Get the octet. */
+
+        octet = (AS_HEX_AT(parser->buffer, 1) << 4) + AS_HEX_AT(parser->buffer, 2);
+
+        /* If it is the leading octet, determine the length of the UTF-8 sequence. */
+
+        if (!width)
+        {
+            width = (octet & 0x80) == 0x00 ? 1 :
+                    (octet & 0xE0) == 0xC0 ? 2 :
+                    (octet & 0xF0) == 0xE0 ? 3 :
+                    (octet & 0xF8) == 0xF0 ? 4 : 0;
+            if (!width) {
+                return yaml_parser_set_scanner_error(parser, directive ?
+                        "while parsing a %TAG directive" : "while parsing a tag",
+                        start_mark, "found an incorrect leading UTF-8 octet");
+            }
+        }
+        else
+        {
+            /* Check if the trailing octet is correct. */
+
+            if ((octet & 0xC0) != 0x80) {
+                return yaml_parser_set_scanner_error(parser, directive ?
+                        "while parsing a %TAG directive" : "while parsing a tag",
+                        start_mark, "found an incorrect trailing UTF-8 octet");
+            }
+        }
+
+        /* Copy the octet and move the pointers. */
+
+        *(string->pointer++) = octet;
+        SKIP(parser);
+        SKIP(parser);
+        SKIP(parser);
+
+    } while (--width);
+
+    return 1;
+}
+
+/*
+ * Scan a block scalar.
+ */
+
+static int
+yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token,
+        int literal)
+{
+    yaml_mark_t start_mark;
+    yaml_mark_t end_mark;
+    yaml_string_t string = NULL_STRING;
+    yaml_string_t leading_break = NULL_STRING;
+    yaml_string_t trailing_breaks = NULL_STRING;
+    int chomping = 0;
+    int increment = 0;
+    int indent = 0;
+    int leading_blank = 0;
+    int trailing_blank = 0;
+
+    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error;
+
+    /* Eat the indicator '|' or '>'. */
+
+    start_mark = parser->mark;
+
+    SKIP(parser);
+
+    /* Scan the additional block scalar indicators. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    /* Check for a chomping indicator. */
+
+    if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-'))
+    {
+        /* Set the chomping method and eat the indicator. */
+
+        chomping = CHECK(parser->buffer, '+') ? +1 : -1;
+
+        SKIP(parser);
+
+        /* Check for an indentation indicator. */
+
+        if (!CACHE(parser, 1)) goto error;
+
+        if (IS_DIGIT(parser->buffer))
+        {
             /* Check that the indentation is greater than 0. */
- 
-            if (CHECK(parser->buffer, '0')) { 
-                yaml_parser_set_scanner_error(parser, "while scanning a block scalar", 
+
+            if (CHECK(parser->buffer, '0')) {
+                yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
                         start_mark, "found an indentation indicator equal to 0");
-                goto error; 
-            } 
- 
+                goto error;
+            }
+
             /* Get the indentation level and eat the indicator. */
- 
-            increment = AS_DIGIT(parser->buffer); 
- 
-            SKIP(parser); 
-        } 
-    } 
- 
-    /* Do the same as above, but in the opposite order. */ 
- 
-    else if (IS_DIGIT(parser->buffer)) 
-    { 
-        if (CHECK(parser->buffer, '0')) { 
-            yaml_parser_set_scanner_error(parser, "while scanning a block scalar", 
+
+            increment = AS_DIGIT(parser->buffer);
+
+            SKIP(parser);
+        }
+    }
+
+    /* Do the same as above, but in the opposite order. */
+
+    else if (IS_DIGIT(parser->buffer))
+    {
+        if (CHECK(parser->buffer, '0')) {
+            yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
                     start_mark, "found an indentation indicator equal to 0");
-            goto error; 
-        } 
- 
-        increment = AS_DIGIT(parser->buffer); 
- 
-        SKIP(parser); 
- 
-        if (!CACHE(parser, 1)) goto error; 
- 
-        if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-')) { 
-            chomping = CHECK(parser->buffer, '+') ? +1 : -1; 
- 
-            SKIP(parser); 
-        } 
-    } 
- 
-    /* Eat whitespaces and comments to the end of the line. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
-    while (IS_BLANK(parser->buffer)) { 
-        SKIP(parser); 
-        if (!CACHE(parser, 1)) goto error; 
-    } 
- 
-    if (CHECK(parser->buffer, '#')) { 
-        while (!IS_BREAKZ(parser->buffer)) { 
-            SKIP(parser); 
-            if (!CACHE(parser, 1)) goto error; 
-        } 
-    } 
- 
-    /* Check if we are at the end of the line. */ 
- 
-    if (!IS_BREAKZ(parser->buffer)) { 
-        yaml_parser_set_scanner_error(parser, "while scanning a block scalar", 
-                start_mark, "did not find expected comment or line break"); 
-        goto error; 
-    } 
- 
-    /* Eat a line break. */ 
- 
-    if (IS_BREAK(parser->buffer)) { 
-        if (!CACHE(parser, 2)) goto error; 
-        SKIP_LINE(parser); 
-    } 
- 
-    end_mark = parser->mark; 
- 
+            goto error;
+        }
+
+        increment = AS_DIGIT(parser->buffer);
+
+        SKIP(parser);
+
+        if (!CACHE(parser, 1)) goto error;
+
+        if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-')) {
+            chomping = CHECK(parser->buffer, '+') ? +1 : -1;
+
+            SKIP(parser);
+        }
+    }
+
+    /* Eat whitespaces and comments to the end of the line. */
+
+    if (!CACHE(parser, 1)) goto error;
+
+    while (IS_BLANK(parser->buffer)) {
+        SKIP(parser);
+        if (!CACHE(parser, 1)) goto error;
+    }
+
+    if (CHECK(parser->buffer, '#')) {
+        while (!IS_BREAKZ(parser->buffer)) {
+            SKIP(parser);
+            if (!CACHE(parser, 1)) goto error;
+        }
+    }
+
+    /* Check if we are at the end of the line. */
+
+    if (!IS_BREAKZ(parser->buffer)) {
+        yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+                start_mark, "did not find expected comment or line break");
+        goto error;
+    }
+
+    /* Eat a line break. */
+
+    if (IS_BREAK(parser->buffer)) {
+        if (!CACHE(parser, 2)) goto error;
+        SKIP_LINE(parser);
+    }
+
+    end_mark = parser->mark;
+
     /* Set the indentation level if it was specified. */
- 
-    if (increment) { 
-        indent = parser->indent >= 0 ? parser->indent+increment : increment; 
-    } 
- 
-    /* Scan the leading line breaks and determine the indentation level if needed. */ 
- 
-    if (!yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, 
-                start_mark, &end_mark)) goto error; 
- 
-    /* Scan the block scalar content. */ 
- 
-    if (!CACHE(parser, 1)) goto error; 
- 
+
+    if (increment) {
+        indent = parser->indent >= 0 ? parser->indent+increment : increment;
+    }
+
+    /* Scan the leading line breaks and determine the indentation level if needed. */
+
+    if (!yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks,
+                start_mark, &end_mark)) goto error;
+
+    /* Scan the block scalar content. */
+
+    if (!CACHE(parser, 1)) goto error;
+
     while ((int)parser->mark.column == indent && !(IS_Z(parser->buffer)))
-    { 
-        /* 
-         * We are at the beginning of a non-empty line. 
-         */ 
- 
-        /* Is it a trailing whitespace? */ 
- 
-        trailing_blank = IS_BLANK(parser->buffer); 
- 
-        /* Check if we need to fold the leading line break. */ 
- 
-        if (!literal && (*leading_break.start == '\n') 
-                && !leading_blank && !trailing_blank) 
-        { 
-            /* Do we need to join the lines by space? */ 
- 
-            if (*trailing_breaks.start == '\0') { 
-                if (!STRING_EXTEND(parser, string)) goto error; 
-                *(string.pointer ++) = ' '; 
-            } 
- 
-            CLEAR(parser, leading_break); 
-        } 
-        else { 
-            if (!JOIN(parser, string, leading_break)) goto error; 
-            CLEAR(parser, leading_break); 
-        } 
- 
-        /* Append the remaining line breaks. */ 
- 
-        if (!JOIN(parser, string, trailing_breaks)) goto error; 
-        CLEAR(parser, trailing_breaks); 
- 
-        /* Is it a leading whitespace? */ 
- 
-        leading_blank = IS_BLANK(parser->buffer); 
- 
-        /* Consume the current line. */ 
- 
-        while (!IS_BREAKZ(parser->buffer)) { 
-            if (!READ(parser, string)) goto error; 
-            if (!CACHE(parser, 1)) goto error; 
-        } 
- 
-        /* Consume the line break. */ 
- 
-        if (!CACHE(parser, 2)) goto error; 
- 
-        if (!READ_LINE(parser, leading_break)) goto error; 
- 
+    {
+        /*
+         * We are at the beginning of a non-empty line.
+         */
+
+        /* Is it a trailing whitespace? */
+
+        trailing_blank = IS_BLANK(parser->buffer);
+
+        /* Check if we need to fold the leading line break. */
+
+        if (!literal && (*leading_break.start == '\n')
+                && !leading_blank && !trailing_blank)
+        {
+            /* Do we need to join the lines by space? */
+
+            if (*trailing_breaks.start == '\0') {
+                if (!STRING_EXTEND(parser, string)) goto error;
+                *(string.pointer ++) = ' ';
+            }
+
+            CLEAR(parser, leading_break);
+        }
+        else {
+            if (!JOIN(parser, string, leading_break)) goto error;
+            CLEAR(parser, leading_break);
+        }
+
+        /* Append the remaining line breaks. */
+
+        if (!JOIN(parser, string, trailing_breaks)) goto error;
+        CLEAR(parser, trailing_breaks);
+
+        /* Is it a leading whitespace? */
+
+        leading_blank = IS_BLANK(parser->buffer);
+
+        /* Consume the current line. */
+
+        while (!IS_BREAKZ(parser->buffer)) {
+            if (!READ(parser, string)) goto error;
+            if (!CACHE(parser, 1)) goto error;
+        }
+
+        /* Consume the line break. */
+
+        if (!CACHE(parser, 2)) goto error;
+
+        if (!READ_LINE(parser, leading_break)) goto error;
+
         /* Eat the following indentation spaces and line breaks. */
- 
-        if (!yaml_parser_scan_block_scalar_breaks(parser, 
-                    &indent, &trailing_breaks, start_mark, &end_mark)) goto error; 
-    } 
- 
-    /* Chomp the tail. */ 
- 
-    if (chomping != -1) { 
-        if (!JOIN(parser, string, leading_break)) goto error; 
-    } 
-    if (chomping == 1) { 
-        if (!JOIN(parser, string, trailing_breaks)) goto error; 
-    } 
- 
-    /* Create a token. */ 
- 
-    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start, 
-            literal ? YAML_LITERAL_SCALAR_STYLE : YAML_FOLDED_SCALAR_STYLE, 
-            start_mark, end_mark); 
- 
-    STRING_DEL(parser, leading_break); 
-    STRING_DEL(parser, trailing_breaks); 
- 
-    return 1; 
- 
-error: 
-    STRING_DEL(parser, string); 
-    STRING_DEL(parser, leading_break); 
-    STRING_DEL(parser, trailing_breaks); 
- 
-    return 0; 
-} 
- 
-/* 
+
+        if (!yaml_parser_scan_block_scalar_breaks(parser,
+                    &indent, &trailing_breaks, start_mark, &end_mark)) goto error;
+    }
+
+    /* Chomp the tail. */
+
+    if (chomping != -1) {
+        if (!JOIN(parser, string, leading_break)) goto error;
+    }
+    if (chomping == 1) {
+        if (!JOIN(parser, string, trailing_breaks)) goto error;
+    }
+
+    /* Create a token. */
+
+    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start,
+            literal ? YAML_LITERAL_SCALAR_STYLE : YAML_FOLDED_SCALAR_STYLE,
+            start_mark, end_mark);
+
+    STRING_DEL(parser, leading_break);
+    STRING_DEL(parser, trailing_breaks);
+
+    return 1;
+
+error:
+    STRING_DEL(parser, string);
+    STRING_DEL(parser, leading_break);
+    STRING_DEL(parser, trailing_breaks);
+
+    return 0;
+}
+
+/*
  * Scan indentation spaces and line breaks for a block scalar.  Determine the
  * indentation level if needed.
- */ 
- 
-static int 
-yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser, 
-        int *indent, yaml_string_t *breaks, 
-        yaml_mark_t start_mark, yaml_mark_t *end_mark) 
-{ 
-    int max_indent = 0; 
- 
-    *end_mark = parser->mark; 
- 
+ */
+
+static int
+yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser,
+        int *indent, yaml_string_t *breaks,
+        yaml_mark_t start_mark, yaml_mark_t *end_mark)
+{
+    int max_indent = 0;
+
+    *end_mark = parser->mark;
+
     /* Eat the indentation spaces and line breaks. */
- 
-    while (1) 
-    { 
+
+    while (1)
+    {
         /* Eat the indentation spaces. */
- 
-        if (!CACHE(parser, 1)) return 0; 
- 
-        while ((!*indent || (int)parser->mark.column < *indent) 
-                && IS_SPACE(parser->buffer)) { 
-            SKIP(parser); 
-            if (!CACHE(parser, 1)) return 0; 
-        } 
- 
-        if ((int)parser->mark.column > max_indent) 
-            max_indent = (int)parser->mark.column; 
- 
+
+        if (!CACHE(parser, 1)) return 0;
+
+        while ((!*indent || (int)parser->mark.column < *indent)
+                && IS_SPACE(parser->buffer)) {
+            SKIP(parser);
+            if (!CACHE(parser, 1)) return 0;
+        }
+
+        if ((int)parser->mark.column > max_indent)
+            max_indent = (int)parser->mark.column;
+
         /* Check for a tab character messing the indentation. */
- 
-        if ((!*indent || (int)parser->mark.column < *indent) 
-                && IS_TAB(parser->buffer)) { 
-            return yaml_parser_set_scanner_error(parser, "while scanning a block scalar", 
+
+        if ((!*indent || (int)parser->mark.column < *indent)
+                && IS_TAB(parser->buffer)) {
+            return yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
                     start_mark, "found a tab character where an indentation space is expected");
-        } 
- 
-        /* Have we found a non-empty line? */ 
- 
-        if (!IS_BREAK(parser->buffer)) break; 
- 
-        /* Consume the line break. */ 
- 
-        if (!CACHE(parser, 2)) return 0; 
-        if (!READ_LINE(parser, *breaks)) return 0; 
-        *end_mark = parser->mark; 
-    } 
- 
-    /* Determine the indentation level if needed. */ 
- 
-    if (!*indent) { 
-        *indent = max_indent; 
-        if (*indent < parser->indent + 1) 
-            *indent = parser->indent + 1; 
-        if (*indent < 1) 
-            *indent = 1; 
-    } 
- 
+        }
+
+        /* Have we found a non-empty line? */
+
+        if (!IS_BREAK(parser->buffer)) break;
+
+        /* Consume the line break. */
+
+        if (!CACHE(parser, 2)) return 0;
+        if (!READ_LINE(parser, *breaks)) return 0;
+        *end_mark = parser->mark;
+    }
+
+    /* Determine the indentation level if needed. */
+
+    if (!*indent) {
+        *indent = max_indent;
+        if (*indent < parser->indent + 1)
+            *indent = parser->indent + 1;
+        if (*indent < 1)
+            *indent = 1;
+    }
+
    return 1;
-} 
- 
-/* 
- * Scan a quoted scalar. 
- */ 
- 
-static int 
-yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token, 
-        int single) 
-{ 
-    yaml_mark_t start_mark; 
-    yaml_mark_t end_mark; 
-    yaml_string_t string = NULL_STRING; 
-    yaml_string_t leading_break = NULL_STRING; 
-    yaml_string_t trailing_breaks = NULL_STRING; 
-    yaml_string_t whitespaces = NULL_STRING; 
-    int leading_blanks; 
- 
-    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error; 
- 
-    /* Eat the left quote. */ 
- 
-    start_mark = parser->mark; 
- 
-    SKIP(parser); 
- 
-    /* Consume the content of the quoted scalar. */ 
- 
-    while (1) 
-    { 
-        /* Check that there are no document indicators at the beginning of the line. */ 
- 
-        if (!CACHE(parser, 4)) goto error; 
- 
-        if (parser->mark.column == 0 && 
-            ((CHECK_AT(parser->buffer, '-', 0) && 
-              CHECK_AT(parser->buffer, '-', 1) && 
-              CHECK_AT(parser->buffer, '-', 2)) || 
-             (CHECK_AT(parser->buffer, '.', 0) && 
-              CHECK_AT(parser->buffer, '.', 1) && 
-              CHECK_AT(parser->buffer, '.', 2))) && 
-            IS_BLANKZ_AT(parser->buffer, 3)) 
-        { 
-            yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", 
-                    start_mark, "found unexpected document indicator"); 
-            goto error; 
-        } 
- 
-        /* Check for EOF. */ 
- 
-        if (IS_Z(parser->buffer)) { 
-            yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", 
-                    start_mark, "found unexpected end of stream"); 
-            goto error; 
-        } 
- 
-        /* Consume non-blank characters. */ 
- 
-        if (!CACHE(parser, 2)) goto error; 
- 
-        leading_blanks = 0; 
- 
-        while (!IS_BLANKZ(parser->buffer)) 
-        { 
-            /* Check for an escaped single quote. */ 
- 
-            if (single && CHECK_AT(parser->buffer, '\'', 0) 
-                    && CHECK_AT(parser->buffer, '\'', 1)) 
-            { 
-                if (!STRING_EXTEND(parser, string)) goto error; 
-                *(string.pointer++) = '\''; 
-                SKIP(parser); 
-                SKIP(parser); 
-            } 
- 
-            /* Check for the right quote. */ 
- 
-            else if (CHECK(parser->buffer, single ? '\'' : '"')) 
-            { 
-                break; 
-            } 
- 
-            /* Check for an escaped line break. */ 
- 
-            else if (!single && CHECK(parser->buffer, '\\') 
-                    && IS_BREAK_AT(parser->buffer, 1)) 
-            { 
-                if (!CACHE(parser, 3)) goto error; 
-                SKIP(parser); 
-                SKIP_LINE(parser); 
-                leading_blanks = 1; 
-                break; 
-            } 
- 
-            /* Check for an escape sequence. */ 
- 
-            else if (!single && CHECK(parser->buffer, '\\')) 
-            { 
-                size_t code_length = 0; 
- 
-                if (!STRING_EXTEND(parser, string)) goto error; 
- 
-                /* Check the escape character. */ 
- 
-                switch (parser->buffer.pointer[1]) 
-                { 
-                    case '0': 
-                        *(string.pointer++) = '\0'; 
-                        break; 
- 
-                    case 'a': 
-                        *(string.pointer++) = '\x07'; 
-                        break; 
- 
-                    case 'b': 
-                        *(string.pointer++) = '\x08'; 
-                        break; 
- 
-                    case 't': 
-                    case '\t': 
-                        *(string.pointer++) = '\x09'; 
-                        break; 
- 
-                    case 'n': 
-                        *(string.pointer++) = '\x0A'; 
-                        break; 
- 
-                    case 'v': 
-                        *(string.pointer++) = '\x0B'; 
-                        break; 
- 
-                    case 'f': 
-                        *(string.pointer++) = '\x0C'; 
-                        break; 
- 
-                    case 'r': 
-                        *(string.pointer++) = '\x0D'; 
-                        break; 
- 
-                    case 'e': 
-                        *(string.pointer++) = '\x1B'; 
-                        break; 
- 
-                    case ' ': 
-                        *(string.pointer++) = '\x20'; 
-                        break; 
- 
-                    case '"': 
-                        *(string.pointer++) = '"'; 
-                        break; 
- 
+}
+
+/*
+ * Scan a quoted scalar.
+ */
+
+static int
+yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token,
+        int single)
+{
+    yaml_mark_t start_mark;
+    yaml_mark_t end_mark;
+    yaml_string_t string = NULL_STRING;
+    yaml_string_t leading_break = NULL_STRING;
+    yaml_string_t trailing_breaks = NULL_STRING;
+    yaml_string_t whitespaces = NULL_STRING;
+    int leading_blanks;
+
+    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error;
+
+    /* Eat the left quote. */
+
+    start_mark = parser->mark;
+
+    SKIP(parser);
+
+    /* Consume the content of the quoted scalar. */
+
+    while (1)
+    {
+        /* Check that there are no document indicators at the beginning of the line. */
+
+        if (!CACHE(parser, 4)) goto error;
+
+        if (parser->mark.column == 0 &&
+            ((CHECK_AT(parser->buffer, '-', 0) &&
+              CHECK_AT(parser->buffer, '-', 1) &&
+              CHECK_AT(parser->buffer, '-', 2)) ||
+             (CHECK_AT(parser->buffer, '.', 0) &&
+              CHECK_AT(parser->buffer, '.', 1) &&
+              CHECK_AT(parser->buffer, '.', 2))) &&
+            IS_BLANKZ_AT(parser->buffer, 3))
+        {
+            yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+                    start_mark, "found unexpected document indicator");
+            goto error;
+        }
+
+        /* Check for EOF. */
+
+        if (IS_Z(parser->buffer)) {
+            yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+                    start_mark, "found unexpected end of stream");
+            goto error;
+        }
+
+        /* Consume non-blank characters. */
+
+        if (!CACHE(parser, 2)) goto error;
+
+        leading_blanks = 0;
+
+        while (!IS_BLANKZ(parser->buffer))
+        {
+            /* Check for an escaped single quote. */
+
+            if (single && CHECK_AT(parser->buffer, '\'', 0)
+                    && CHECK_AT(parser->buffer, '\'', 1))
+            {
+                if (!STRING_EXTEND(parser, string)) goto error;
+                *(string.pointer++) = '\'';
+                SKIP(parser);
+                SKIP(parser);
+            }
+
+            /* Check for the right quote. */
+
+            else if (CHECK(parser->buffer, single ? '\'' : '"'))
+            {
+                break;
+            }
+
+            /* Check for an escaped line break. */
+
+            else if (!single && CHECK(parser->buffer, '\\')
+                    && IS_BREAK_AT(parser->buffer, 1))
+            {
+                if (!CACHE(parser, 3)) goto error;
+                SKIP(parser);
+                SKIP_LINE(parser);
+                leading_blanks = 1;
+                break;
+            }
+
+            /* Check for an escape sequence. */
+
+            else if (!single && CHECK(parser->buffer, '\\'))
+            {
+                size_t code_length = 0;
+
+                if (!STRING_EXTEND(parser, string)) goto error;
+
+                /* Check the escape character. */
+
+                switch (parser->buffer.pointer[1])
+                {
+                    case '0':
+                        *(string.pointer++) = '\0';
+                        break;
+
+                    case 'a':
+                        *(string.pointer++) = '\x07';
+                        break;
+
+                    case 'b':
+                        *(string.pointer++) = '\x08';
+                        break;
+
+                    case 't':
+                    case '\t':
+                        *(string.pointer++) = '\x09';
+                        break;
+
+                    case 'n':
+                        *(string.pointer++) = '\x0A';
+                        break;
+
+                    case 'v':
+                        *(string.pointer++) = '\x0B';
+                        break;
+
+                    case 'f':
+                        *(string.pointer++) = '\x0C';
+                        break;
+
+                    case 'r':
+                        *(string.pointer++) = '\x0D';
+                        break;
+
+                    case 'e':
+                        *(string.pointer++) = '\x1B';
+                        break;
+
+                    case ' ':
+                        *(string.pointer++) = '\x20';
+                        break;
+
+                    case '"':
+                        *(string.pointer++) = '"';
+                        break;
+
                     case '/':
                         *(string.pointer++) = '/';
-                        break; 
- 
-                    case '\\': 
-                        *(string.pointer++) = '\\'; 
-                        break; 
- 
-                    case 'N':   /* NEL (#x85) */ 
-                        *(string.pointer++) = '\xC2'; 
-                        *(string.pointer++) = '\x85'; 
-                        break; 
- 
-                    case '_':   /* #xA0 */ 
-                        *(string.pointer++) = '\xC2'; 
-                        *(string.pointer++) = '\xA0'; 
-                        break; 
- 
-                    case 'L':   /* LS (#x2028) */ 
-                        *(string.pointer++) = '\xE2'; 
-                        *(string.pointer++) = '\x80'; 
-                        *(string.pointer++) = '\xA8'; 
-                        break; 
- 
-                    case 'P':   /* PS (#x2029) */ 
-                        *(string.pointer++) = '\xE2'; 
-                        *(string.pointer++) = '\x80'; 
-                        *(string.pointer++) = '\xA9'; 
-                        break; 
- 
-                    case 'x': 
-                        code_length = 2; 
-                        break; 
- 
-                    case 'u': 
-                        code_length = 4; 
-                        break; 
- 
-                    case 'U': 
-                        code_length = 8; 
-                        break; 
- 
-                    default: 
-                        yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", 
-                                start_mark, "found unknown escape character"); 
-                        goto error; 
-                } 
- 
-                SKIP(parser); 
-                SKIP(parser); 
- 
-                /* Consume an arbitrary escape code. */ 
- 
-                if (code_length) 
-                { 
-                    unsigned int value = 0; 
-                    size_t k; 
- 
-                    /* Scan the character value. */ 
- 
-                    if (!CACHE(parser, code_length)) goto error; 
- 
-                    for (k = 0; k < code_length; k ++) { 
-                        if (!IS_HEX_AT(parser->buffer, k)) { 
-                            yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", 
-                                    start_mark, "did not find expected hexdecimal number"); 
-                            goto error; 
-                        } 
-                        value = (value << 4) + AS_HEX_AT(parser->buffer, k); 
-                    } 
- 
-                    /* Check the value and write the character. */ 
- 
-                    if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF) { 
-                        yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", 
-                                start_mark, "found invalid Unicode character escape code"); 
-                        goto error; 
-                    } 
- 
-                    if (value <= 0x7F) { 
-                        *(string.pointer++) = value; 
-                    } 
-                    else if (value <= 0x7FF) { 
-                        *(string.pointer++) = 0xC0 + (value >> 6); 
-                        *(string.pointer++) = 0x80 + (value & 0x3F); 
-                    } 
-                    else if (value <= 0xFFFF) { 
-                        *(string.pointer++) = 0xE0 + (value >> 12); 
-                        *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F); 
-                        *(string.pointer++) = 0x80 + (value & 0x3F); 
-                    } 
-                    else { 
-                        *(string.pointer++) = 0xF0 + (value >> 18); 
-                        *(string.pointer++) = 0x80 + ((value >> 12) & 0x3F); 
-                        *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F); 
-                        *(string.pointer++) = 0x80 + (value & 0x3F); 
-                    } 
- 
-                    /* Advance the pointer. */ 
- 
-                    for (k = 0; k < code_length; k ++) { 
-                        SKIP(parser); 
-                    } 
-                } 
-            } 
- 
-            else 
-            { 
-                /* It is a non-escaped non-blank character. */ 
- 
-                if (!READ(parser, string)) goto error; 
-            } 
- 
-            if (!CACHE(parser, 2)) goto error; 
-        } 
- 
-        /* Check if we are at the end of the scalar. */ 
- 
+                        break;
+
+                    case '\\':
+                        *(string.pointer++) = '\\';
+                        break;
+
+                    case 'N':   /* NEL (#x85) */
+                        *(string.pointer++) = '\xC2';
+                        *(string.pointer++) = '\x85';
+                        break;
+
+                    case '_':   /* #xA0 */
+                        *(string.pointer++) = '\xC2';
+                        *(string.pointer++) = '\xA0';
+                        break;
+
+                    case 'L':   /* LS (#x2028) */
+                        *(string.pointer++) = '\xE2';
+                        *(string.pointer++) = '\x80';
+                        *(string.pointer++) = '\xA8';
+                        break;
+
+                    case 'P':   /* PS (#x2029) */
+                        *(string.pointer++) = '\xE2';
+                        *(string.pointer++) = '\x80';
+                        *(string.pointer++) = '\xA9';
+                        break;
+
+                    case 'x':
+                        code_length = 2;
+                        break;
+
+                    case 'u':
+                        code_length = 4;
+                        break;
+
+                    case 'U':
+                        code_length = 8;
+                        break;
+
+                    default:
+                        yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+                                start_mark, "found unknown escape character");
+                        goto error;
+                }
+
+                SKIP(parser);
+                SKIP(parser);
+
+                /* Consume an arbitrary escape code. */
+
+                if (code_length)
+                {
+                    unsigned int value = 0;
+                    size_t k;
+
+                    /* Scan the character value. */
+
+                    if (!CACHE(parser, code_length)) goto error;
+
+                    for (k = 0; k < code_length; k ++) {
+                        if (!IS_HEX_AT(parser->buffer, k)) {
+                            yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+                                    start_mark, "did not find expected hexdecimal number");
+                            goto error;
+                        }
+                        value = (value << 4) + AS_HEX_AT(parser->buffer, k);
+                    }
+
+                    /* Check the value and write the character. */
+
+                    if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF) {
+                        yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+                                start_mark, "found invalid Unicode character escape code");
+                        goto error;
+                    }
+
+                    if (value <= 0x7F) {
+                        *(string.pointer++) = value;
+                    }
+                    else if (value <= 0x7FF) {
+                        *(string.pointer++) = 0xC0 + (value >> 6);
+                        *(string.pointer++) = 0x80 + (value & 0x3F);
+                    }
+                    else if (value <= 0xFFFF) {
+                        *(string.pointer++) = 0xE0 + (value >> 12);
+                        *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F);
+                        *(string.pointer++) = 0x80 + (value & 0x3F);
+                    }
+                    else {
+                        *(string.pointer++) = 0xF0 + (value >> 18);
+                        *(string.pointer++) = 0x80 + ((value >> 12) & 0x3F);
+                        *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F);
+                        *(string.pointer++) = 0x80 + (value & 0x3F);
+                    }
+
+                    /* Advance the pointer. */
+
+                    for (k = 0; k < code_length; k ++) {
+                        SKIP(parser);
+                    }
+                }
+            }
+
+            else
+            {
+                /* It is a non-escaped non-blank character. */
+
+                if (!READ(parser, string)) goto error;
+            }
+
+            if (!CACHE(parser, 2)) goto error;
+        }
+
+        /* Check if we are at the end of the scalar. */
+
         /* Fix for crash unitialized value crash
          * Credit for the bug and input is to OSS Fuzz
          * Credit for the fix to Alex Gaynor
          */
         if (!CACHE(parser, 1)) goto error;
-        if (CHECK(parser->buffer, single ? '\'' : '"')) 
-            break; 
- 
-        /* Consume blank characters. */ 
- 
-        if (!CACHE(parser, 1)) goto error; 
- 
-        while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer)) 
-        { 
-            if (IS_BLANK(parser->buffer)) 
-            { 
-                /* Consume a space or a tab character. */ 
- 
-                if (!leading_blanks) { 
-                    if (!READ(parser, whitespaces)) goto error; 
-                } 
-                else { 
-                    SKIP(parser); 
-                } 
-            } 
-            else 
-            { 
-                if (!CACHE(parser, 2)) goto error; 
- 
-                /* Check if it is a first line break. */ 
- 
-                if (!leading_blanks) 
-                { 
-                    CLEAR(parser, whitespaces); 
-                    if (!READ_LINE(parser, leading_break)) goto error; 
-                    leading_blanks = 1; 
-                } 
-                else 
-                { 
-                    if (!READ_LINE(parser, trailing_breaks)) goto error; 
-                } 
-            } 
-            if (!CACHE(parser, 1)) goto error; 
-        } 
- 
-        /* Join the whitespaces or fold line breaks. */ 
- 
-        if (leading_blanks) 
-        { 
-            /* Do we need to fold line breaks? */ 
- 
-            if (leading_break.start[0] == '\n') { 
-                if (trailing_breaks.start[0] == '\0') { 
-                    if (!STRING_EXTEND(parser, string)) goto error; 
-                    *(string.pointer++) = ' '; 
-                } 
-                else { 
-                    if (!JOIN(parser, string, trailing_breaks)) goto error; 
-                    CLEAR(parser, trailing_breaks); 
-                } 
-                CLEAR(parser, leading_break); 
-            } 
-            else { 
-                if (!JOIN(parser, string, leading_break)) goto error; 
-                if (!JOIN(parser, string, trailing_breaks)) goto error; 
-                CLEAR(parser, leading_break); 
-                CLEAR(parser, trailing_breaks); 
-            } 
-        } 
-        else 
-        { 
-            if (!JOIN(parser, string, whitespaces)) goto error; 
-            CLEAR(parser, whitespaces); 
-        } 
-    } 
- 
-    /* Eat the right quote. */ 
- 
-    SKIP(parser); 
- 
-    end_mark = parser->mark; 
- 
-    /* Create a token. */ 
- 
-    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start, 
-            single ? YAML_SINGLE_QUOTED_SCALAR_STYLE : YAML_DOUBLE_QUOTED_SCALAR_STYLE, 
-            start_mark, end_mark); 
- 
-    STRING_DEL(parser, leading_break); 
-    STRING_DEL(parser, trailing_breaks); 
-    STRING_DEL(parser, whitespaces); 
- 
-    return 1; 
- 
-error: 
-    STRING_DEL(parser, string); 
-    STRING_DEL(parser, leading_break); 
-    STRING_DEL(parser, trailing_breaks); 
-    STRING_DEL(parser, whitespaces); 
- 
-    return 0; 
-} 
- 
-/* 
- * Scan a plain scalar. 
- */ 
- 
-static int 
-yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token) 
-{ 
-    yaml_mark_t start_mark; 
-    yaml_mark_t end_mark; 
-    yaml_string_t string = NULL_STRING; 
-    yaml_string_t leading_break = NULL_STRING; 
-    yaml_string_t trailing_breaks = NULL_STRING; 
-    yaml_string_t whitespaces = NULL_STRING; 
-    int leading_blanks = 0; 
-    int indent = parser->indent+1; 
- 
-    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error; 
-    if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error; 
- 
-    start_mark = end_mark = parser->mark; 
- 
-    /* Consume the content of the plain scalar. */ 
- 
-    while (1) 
-    { 
-        /* Check for a document indicator. */ 
- 
-        if (!CACHE(parser, 4)) goto error; 
- 
-        if (parser->mark.column == 0 && 
-            ((CHECK_AT(parser->buffer, '-', 0) && 
-              CHECK_AT(parser->buffer, '-', 1) && 
-              CHECK_AT(parser->buffer, '-', 2)) || 
-             (CHECK_AT(parser->buffer, '.', 0) && 
-              CHECK_AT(parser->buffer, '.', 1) && 
-              CHECK_AT(parser->buffer, '.', 2))) && 
-            IS_BLANKZ_AT(parser->buffer, 3)) break; 
- 
-        /* Check for a comment. */ 
- 
-        if (CHECK(parser->buffer, '#')) 
-            break; 
- 
-        /* Consume non-blank characters. */ 
- 
-        while (!IS_BLANKZ(parser->buffer)) 
-        { 
+        if (CHECK(parser->buffer, single ? '\'' : '"'))
+            break;
+
+        /* Consume blank characters. */
+
+        if (!CACHE(parser, 1)) goto error;
+
+        while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer))
+        {
+            if (IS_BLANK(parser->buffer))
+            {
+                /* Consume a space or a tab character. */
+
+                if (!leading_blanks) {
+                    if (!READ(parser, whitespaces)) goto error;
+                }
+                else {
+                    SKIP(parser);
+                }
+            }
+            else
+            {
+                if (!CACHE(parser, 2)) goto error;
+
+                /* Check if it is a first line break. */
+
+                if (!leading_blanks)
+                {
+                    CLEAR(parser, whitespaces);
+                    if (!READ_LINE(parser, leading_break)) goto error;
+                    leading_blanks = 1;
+                }
+                else
+                {
+                    if (!READ_LINE(parser, trailing_breaks)) goto error;
+                }
+            }
+            if (!CACHE(parser, 1)) goto error;
+        }
+
+        /* Join the whitespaces or fold line breaks. */
+
+        if (leading_blanks)
+        {
+            /* Do we need to fold line breaks? */
+
+            if (leading_break.start[0] == '\n') {
+                if (trailing_breaks.start[0] == '\0') {
+                    if (!STRING_EXTEND(parser, string)) goto error;
+                    *(string.pointer++) = ' ';
+                }
+                else {
+                    if (!JOIN(parser, string, trailing_breaks)) goto error;
+                    CLEAR(parser, trailing_breaks);
+                }
+                CLEAR(parser, leading_break);
+            }
+            else {
+                if (!JOIN(parser, string, leading_break)) goto error;
+                if (!JOIN(parser, string, trailing_breaks)) goto error;
+                CLEAR(parser, leading_break);
+                CLEAR(parser, trailing_breaks);
+            }
+        }
+        else
+        {
+            if (!JOIN(parser, string, whitespaces)) goto error;
+            CLEAR(parser, whitespaces);
+        }
+    }
+
+    /* Eat the right quote. */
+
+    SKIP(parser);
+
+    end_mark = parser->mark;
+
+    /* Create a token. */
+
+    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start,
+            single ? YAML_SINGLE_QUOTED_SCALAR_STYLE : YAML_DOUBLE_QUOTED_SCALAR_STYLE,
+            start_mark, end_mark);
+
+    STRING_DEL(parser, leading_break);
+    STRING_DEL(parser, trailing_breaks);
+    STRING_DEL(parser, whitespaces);
+
+    return 1;
+
+error:
+    STRING_DEL(parser, string);
+    STRING_DEL(parser, leading_break);
+    STRING_DEL(parser, trailing_breaks);
+    STRING_DEL(parser, whitespaces);
+
+    return 0;
+}
+
+/*
+ * Scan a plain scalar.
+ */
+
+static int
+yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token)
+{
+    yaml_mark_t start_mark;
+    yaml_mark_t end_mark;
+    yaml_string_t string = NULL_STRING;
+    yaml_string_t leading_break = NULL_STRING;
+    yaml_string_t trailing_breaks = NULL_STRING;
+    yaml_string_t whitespaces = NULL_STRING;
+    int leading_blanks = 0;
+    int indent = parser->indent+1;
+
+    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error;
+    if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error;
+
+    start_mark = end_mark = parser->mark;
+
+    /* Consume the content of the plain scalar. */
+
+    while (1)
+    {
+        /* Check for a document indicator. */
+
+        if (!CACHE(parser, 4)) goto error;
+
+        if (parser->mark.column == 0 &&
+            ((CHECK_AT(parser->buffer, '-', 0) &&
+              CHECK_AT(parser->buffer, '-', 1) &&
+              CHECK_AT(parser->buffer, '-', 2)) ||
+             (CHECK_AT(parser->buffer, '.', 0) &&
+              CHECK_AT(parser->buffer, '.', 1) &&
+              CHECK_AT(parser->buffer, '.', 2))) &&
+            IS_BLANKZ_AT(parser->buffer, 3)) break;
+
+        /* Check for a comment. */
+
+        if (CHECK(parser->buffer, '#'))
+            break;
+
+        /* Consume non-blank characters. */
+
+        while (!IS_BLANKZ(parser->buffer))
+        {
             /* Check for "x:" + one of ',?[]{}' in the flow context. TODO: Fix the test "spec-08-13".
              * This is not completely according to the spec
              * See http://yaml.org/spec/1.1/#id907281 9.1.3. Plain
              */
- 
-            if (parser->flow_level 
-                    && CHECK(parser->buffer, ':') 
+
+            if (parser->flow_level
+                    && CHECK(parser->buffer, ':')
                     && (
                         CHECK_AT(parser->buffer, ',', 1)
                         || CHECK_AT(parser->buffer, '?', 1)
@@ -3455,144 +3455,144 @@ yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token)
                         || CHECK_AT(parser->buffer, '}', 1)
                     )
                     ) {
-                yaml_parser_set_scanner_error(parser, "while scanning a plain scalar", 
-                        start_mark, "found unexpected ':'"); 
-                goto error; 
-            } 
- 
-            /* Check for indicators that may end a plain scalar. */ 
- 
-            if ((CHECK(parser->buffer, ':') && IS_BLANKZ_AT(parser->buffer, 1)) 
-                    || (parser->flow_level && 
+                yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
+                        start_mark, "found unexpected ':'");
+                goto error;
+            }
+
+            /* Check for indicators that may end a plain scalar. */
+
+            if ((CHECK(parser->buffer, ':') && IS_BLANKZ_AT(parser->buffer, 1))
+                    || (parser->flow_level &&
                         (CHECK(parser->buffer, ',')
                          || CHECK(parser->buffer, '[')
-                         || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{') 
-                         || CHECK(parser->buffer, '}')))) 
-                break; 
- 
-            /* Check if we need to join whitespaces and breaks. */ 
- 
-            if (leading_blanks || whitespaces.start != whitespaces.pointer) 
-            { 
-                if (leading_blanks) 
-                { 
-                    /* Do we need to fold line breaks? */ 
- 
-                    if (leading_break.start[0] == '\n') { 
-                        if (trailing_breaks.start[0] == '\0') { 
-                            if (!STRING_EXTEND(parser, string)) goto error; 
-                            *(string.pointer++) = ' '; 
-                        } 
-                        else { 
-                            if (!JOIN(parser, string, trailing_breaks)) goto error; 
-                            CLEAR(parser, trailing_breaks); 
-                        } 
-                        CLEAR(parser, leading_break); 
-                    } 
-                    else { 
-                        if (!JOIN(parser, string, leading_break)) goto error; 
-                        if (!JOIN(parser, string, trailing_breaks)) goto error; 
-                        CLEAR(parser, leading_break); 
-                        CLEAR(parser, trailing_breaks); 
-                    } 
- 
-                    leading_blanks = 0; 
-                } 
-                else 
-                { 
-                    if (!JOIN(parser, string, whitespaces)) goto error; 
-                    CLEAR(parser, whitespaces); 
-                } 
-            } 
- 
-            /* Copy the character. */ 
- 
-            if (!READ(parser, string)) goto error; 
- 
-            end_mark = parser->mark; 
- 
-            if (!CACHE(parser, 2)) goto error; 
-        } 
- 
-        /* Is it the end? */ 
- 
-        if (!(IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer))) 
-            break; 
- 
-        /* Consume blank characters. */ 
- 
-        if (!CACHE(parser, 1)) goto error; 
- 
-        while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer)) 
-        { 
-            if (IS_BLANK(parser->buffer)) 
-            { 
+                         || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{')
+                         || CHECK(parser->buffer, '}'))))
+                break;
+
+            /* Check if we need to join whitespaces and breaks. */
+
+            if (leading_blanks || whitespaces.start != whitespaces.pointer)
+            {
+                if (leading_blanks)
+                {
+                    /* Do we need to fold line breaks? */
+
+                    if (leading_break.start[0] == '\n') {
+                        if (trailing_breaks.start[0] == '\0') {
+                            if (!STRING_EXTEND(parser, string)) goto error;
+                            *(string.pointer++) = ' ';
+                        }
+                        else {
+                            if (!JOIN(parser, string, trailing_breaks)) goto error;
+                            CLEAR(parser, trailing_breaks);
+                        }
+                        CLEAR(parser, leading_break);
+                    }
+                    else {
+                        if (!JOIN(parser, string, leading_break)) goto error;
+                        if (!JOIN(parser, string, trailing_breaks)) goto error;
+                        CLEAR(parser, leading_break);
+                        CLEAR(parser, trailing_breaks);
+                    }
+
+                    leading_blanks = 0;
+                }
+                else
+                {
+                    if (!JOIN(parser, string, whitespaces)) goto error;
+                    CLEAR(parser, whitespaces);
+                }
+            }
+
+            /* Copy the character. */
+
+            if (!READ(parser, string)) goto error;
+
+            end_mark = parser->mark;
+
+            if (!CACHE(parser, 2)) goto error;
+        }
+
+        /* Is it the end? */
+
+        if (!(IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer)))
+            break;
+
+        /* Consume blank characters. */
+
+        if (!CACHE(parser, 1)) goto error;
+
+        while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer))
+        {
+            if (IS_BLANK(parser->buffer))
+            {
                 /* Check for tab characters that abuse indentation. */
- 
-                if (leading_blanks && (int)parser->mark.column < indent 
-                        && IS_TAB(parser->buffer)) { 
-                    yaml_parser_set_scanner_error(parser, "while scanning a plain scalar", 
+
+                if (leading_blanks && (int)parser->mark.column < indent
+                        && IS_TAB(parser->buffer)) {
+                    yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
                             start_mark, "found a tab character that violates indentation");
-                    goto error; 
-                } 
- 
-                /* Consume a space or a tab character. */ 
- 
-                if (!leading_blanks) { 
-                    if (!READ(parser, whitespaces)) goto error; 
-                } 
-                else { 
-                    SKIP(parser); 
-                } 
-            } 
-            else 
-            { 
-                if (!CACHE(parser, 2)) goto error; 
- 
-                /* Check if it is a first line break. */ 
- 
-                if (!leading_blanks) 
-                { 
-                    CLEAR(parser, whitespaces); 
-                    if (!READ_LINE(parser, leading_break)) goto error; 
-                    leading_blanks = 1; 
-                } 
-                else 
-                { 
-                    if (!READ_LINE(parser, trailing_breaks)) goto error; 
-                } 
-            } 
-            if (!CACHE(parser, 1)) goto error; 
-        } 
- 
+                    goto error;
+                }
+
+                /* Consume a space or a tab character. */
+
+                if (!leading_blanks) {
+                    if (!READ(parser, whitespaces)) goto error;
+                }
+                else {
+                    SKIP(parser);
+                }
+            }
+            else
+            {
+                if (!CACHE(parser, 2)) goto error;
+
+                /* Check if it is a first line break. */
+
+                if (!leading_blanks)
+                {
+                    CLEAR(parser, whitespaces);
+                    if (!READ_LINE(parser, leading_break)) goto error;
+                    leading_blanks = 1;
+                }
+                else
+                {
+                    if (!READ_LINE(parser, trailing_breaks)) goto error;
+                }
+            }
+            if (!CACHE(parser, 1)) goto error;
+        }
+
         /* Check indentation level. */
- 
-        if (!parser->flow_level && (int)parser->mark.column < indent) 
-            break; 
-    } 
- 
-    /* Create a token. */ 
- 
-    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start, 
-            YAML_PLAIN_SCALAR_STYLE, start_mark, end_mark); 
- 
-    /* Note that we change the 'simple_key_allowed' flag. */ 
- 
-    if (leading_blanks) { 
-        parser->simple_key_allowed = 1; 
-    } 
- 
-    STRING_DEL(parser, leading_break); 
-    STRING_DEL(parser, trailing_breaks); 
-    STRING_DEL(parser, whitespaces); 
- 
-    return 1; 
- 
-error: 
-    STRING_DEL(parser, string); 
-    STRING_DEL(parser, leading_break); 
-    STRING_DEL(parser, trailing_breaks); 
-    STRING_DEL(parser, whitespaces); 
- 
-    return 0; 
-} 
+
+        if (!parser->flow_level && (int)parser->mark.column < indent)
+            break;
+    }
+
+    /* Create a token. */
+
+    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start,
+            YAML_PLAIN_SCALAR_STYLE, start_mark, end_mark);
+
+    /* Note that we change the 'simple_key_allowed' flag. */
+
+    if (leading_blanks) {
+        parser->simple_key_allowed = 1;
+    }
+
+    STRING_DEL(parser, leading_break);
+    STRING_DEL(parser, trailing_breaks);
+    STRING_DEL(parser, whitespaces);
+
+    return 1;
+
+error:
+    STRING_DEL(parser, string);
+    STRING_DEL(parser, leading_break);
+    STRING_DEL(parser, trailing_breaks);
+    STRING_DEL(parser, whitespaces);
+
+    return 0;
+}
diff --git a/contrib/libs/yaml/src/writer.c b/contrib/libs/yaml/src/writer.c
index aa01469de3..5d57f392f1 100644
--- a/contrib/libs/yaml/src/writer.c
+++ b/contrib/libs/yaml/src/writer.c
@@ -1,141 +1,141 @@
- 
-#include "yaml_private.h" 
- 
-/* 
- * Declarations. 
- */ 
- 
-static int 
-yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem); 
- 
-YAML_DECLARE(int) 
-yaml_emitter_flush(yaml_emitter_t *emitter); 
- 
-/* 
- * Set the writer error and return 0. 
- */ 
- 
-static int 
-yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem) 
-{ 
-    emitter->error = YAML_WRITER_ERROR; 
-    emitter->problem = problem; 
- 
-    return 0; 
-} 
- 
-/* 
- * Flush the output buffer. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_emitter_flush(yaml_emitter_t *emitter) 
-{ 
-    int low, high; 
- 
-    assert(emitter);    /* Non-NULL emitter object is expected. */ 
-    assert(emitter->write_handler); /* Write handler must be set. */ 
-    assert(emitter->encoding);  /* Output encoding must be set. */ 
- 
-    emitter->buffer.last = emitter->buffer.pointer; 
-    emitter->buffer.pointer = emitter->buffer.start; 
- 
-    /* Check if the buffer is empty. */ 
- 
-    if (emitter->buffer.start == emitter->buffer.last) { 
-        return 1; 
-    } 
- 
-    /* If the output encoding is UTF-8, we don't need to recode the buffer. */ 
- 
-    if (emitter->encoding == YAML_UTF8_ENCODING) 
-    { 
-        if (emitter->write_handler(emitter->write_handler_data, 
-                    emitter->buffer.start, 
-                    emitter->buffer.last - emitter->buffer.start)) { 
-            emitter->buffer.last = emitter->buffer.start; 
-            emitter->buffer.pointer = emitter->buffer.start; 
-            return 1; 
-        } 
-        else { 
-            return yaml_emitter_set_writer_error(emitter, "write error"); 
-        } 
-    } 
- 
-    /* Recode the buffer into the raw buffer. */ 
- 
-    low = (emitter->encoding == YAML_UTF16LE_ENCODING ? 0 : 1); 
-    high = (emitter->encoding == YAML_UTF16LE_ENCODING ? 1 : 0); 
- 
-    while (emitter->buffer.pointer != emitter->buffer.last) 
-    { 
-        unsigned char octet; 
-        unsigned int width; 
-        unsigned int value; 
-        size_t k; 
- 
+
+#include "yaml_private.h"
+
+/*
+ * Declarations.
+ */
+
+static int
+yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem);
+
+YAML_DECLARE(int)
+yaml_emitter_flush(yaml_emitter_t *emitter);
+
+/*
+ * Set the writer error and return 0.
+ */
+
+static int
+yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem)
+{
+    emitter->error = YAML_WRITER_ERROR;
+    emitter->problem = problem;
+
+    return 0;
+}
+
+/*
+ * Flush the output buffer.
+ */
+
+YAML_DECLARE(int)
+yaml_emitter_flush(yaml_emitter_t *emitter)
+{
+    int low, high;
+
+    assert(emitter);    /* Non-NULL emitter object is expected. */
+    assert(emitter->write_handler); /* Write handler must be set. */
+    assert(emitter->encoding);  /* Output encoding must be set. */
+
+    emitter->buffer.last = emitter->buffer.pointer;
+    emitter->buffer.pointer = emitter->buffer.start;
+
+    /* Check if the buffer is empty. */
+
+    if (emitter->buffer.start == emitter->buffer.last) {
+        return 1;
+    }
+
+    /* If the output encoding is UTF-8, we don't need to recode the buffer. */
+
+    if (emitter->encoding == YAML_UTF8_ENCODING)
+    {
+        if (emitter->write_handler(emitter->write_handler_data,
+                    emitter->buffer.start,
+                    emitter->buffer.last - emitter->buffer.start)) {
+            emitter->buffer.last = emitter->buffer.start;
+            emitter->buffer.pointer = emitter->buffer.start;
+            return 1;
+        }
+        else {
+            return yaml_emitter_set_writer_error(emitter, "write error");
+        }
+    }
+
+    /* Recode the buffer into the raw buffer. */
+
+    low = (emitter->encoding == YAML_UTF16LE_ENCODING ? 0 : 1);
+    high = (emitter->encoding == YAML_UTF16LE_ENCODING ? 1 : 0);
+
+    while (emitter->buffer.pointer != emitter->buffer.last)
+    {
+        unsigned char octet;
+        unsigned int width;
+        unsigned int value;
+        size_t k;
+
         /*
-         * See the "reader.c" code for more details on UTF-8 encoding.  Note 
-         * that we assume that the buffer contains a valid UTF-8 sequence. 
-         */ 
- 
-        /* Read the next UTF-8 character. */ 
- 
-        octet = emitter->buffer.pointer[0]; 
- 
-        width = (octet & 0x80) == 0x00 ? 1 : 
-                (octet & 0xE0) == 0xC0 ? 2 : 
-                (octet & 0xF0) == 0xE0 ? 3 : 
-                (octet & 0xF8) == 0xF0 ? 4 : 0; 
- 
-        value = (octet & 0x80) == 0x00 ? octet & 0x7F : 
-                (octet & 0xE0) == 0xC0 ? octet & 0x1F : 
-                (octet & 0xF0) == 0xE0 ? octet & 0x0F : 
-                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; 
- 
-        for (k = 1; k < width; k ++) { 
-            octet = emitter->buffer.pointer[k]; 
-            value = (value << 6) + (octet & 0x3F); 
-        } 
- 
-        emitter->buffer.pointer += width; 
- 
-        /* Write the character. */ 
- 
-        if (value < 0x10000) 
-        { 
-            emitter->raw_buffer.last[high] = value >> 8; 
-            emitter->raw_buffer.last[low] = value & 0xFF; 
- 
-            emitter->raw_buffer.last += 2; 
-        } 
-        else 
-        { 
-            /* Write the character using a surrogate pair (check "reader.c"). */ 
- 
-            value -= 0x10000; 
-            emitter->raw_buffer.last[high] = 0xD8 + (value >> 18); 
-            emitter->raw_buffer.last[low] = (value >> 10) & 0xFF; 
-            emitter->raw_buffer.last[high+2] = 0xDC + ((value >> 8) & 0xFF); 
-            emitter->raw_buffer.last[low+2] = value & 0xFF; 
- 
-            emitter->raw_buffer.last += 4; 
-        } 
-    } 
- 
-    /* Write the raw buffer. */ 
- 
-    if (emitter->write_handler(emitter->write_handler_data, 
-                emitter->raw_buffer.start, 
-                emitter->raw_buffer.last - emitter->raw_buffer.start)) { 
-        emitter->buffer.last = emitter->buffer.start; 
-        emitter->buffer.pointer = emitter->buffer.start; 
-        emitter->raw_buffer.last = emitter->raw_buffer.start; 
-        emitter->raw_buffer.pointer = emitter->raw_buffer.start; 
-        return 1; 
-    } 
-    else { 
-        return yaml_emitter_set_writer_error(emitter, "write error"); 
-    } 
-} 
- 
+         * See the "reader.c" code for more details on UTF-8 encoding.  Note
+         * that we assume that the buffer contains a valid UTF-8 sequence.
+         */
+
+        /* Read the next UTF-8 character. */
+
+        octet = emitter->buffer.pointer[0];
+
+        width = (octet & 0x80) == 0x00 ? 1 :
+                (octet & 0xE0) == 0xC0 ? 2 :
+                (octet & 0xF0) == 0xE0 ? 3 :
+                (octet & 0xF8) == 0xF0 ? 4 : 0;
+
+        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+
+        for (k = 1; k < width; k ++) {
+            octet = emitter->buffer.pointer[k];
+            value = (value << 6) + (octet & 0x3F);
+        }
+
+        emitter->buffer.pointer += width;
+
+        /* Write the character. */
+
+        if (value < 0x10000)
+        {
+            emitter->raw_buffer.last[high] = value >> 8;
+            emitter->raw_buffer.last[low] = value & 0xFF;
+
+            emitter->raw_buffer.last += 2;
+        }
+        else
+        {
+            /* Write the character using a surrogate pair (check "reader.c"). */
+
+            value -= 0x10000;
+            emitter->raw_buffer.last[high] = 0xD8 + (value >> 18);
+            emitter->raw_buffer.last[low] = (value >> 10) & 0xFF;
+            emitter->raw_buffer.last[high+2] = 0xDC + ((value >> 8) & 0xFF);
+            emitter->raw_buffer.last[low+2] = value & 0xFF;
+
+            emitter->raw_buffer.last += 4;
+        }
+    }
+
+    /* Write the raw buffer. */
+
+    if (emitter->write_handler(emitter->write_handler_data,
+                emitter->raw_buffer.start,
+                emitter->raw_buffer.last - emitter->raw_buffer.start)) {
+        emitter->buffer.last = emitter->buffer.start;
+        emitter->buffer.pointer = emitter->buffer.start;
+        emitter->raw_buffer.last = emitter->raw_buffer.start;
+        emitter->raw_buffer.pointer = emitter->raw_buffer.start;
+        return 1;
+    }
+    else {
+        return yaml_emitter_set_writer_error(emitter, "write error");
+    }
+}
+
diff --git a/contrib/libs/yaml/src/yaml_private.h b/contrib/libs/yaml/src/yaml_private.h
index d449b470ff..b3351c4165 100644
--- a/contrib/libs/yaml/src/yaml_private.h
+++ b/contrib/libs/yaml/src/yaml_private.h
@@ -1,72 +1,72 @@
 #if HAVE_CONFIG_H
-#include "config.h" 
+#include "config.h"
 #endif
- 
-#include <yaml.h> 
- 
-#include <assert.h> 
-#include <limits.h> 
-#include <stddef.h> 
- 
-/* 
- * Memory management. 
- */ 
- 
-YAML_DECLARE(void *) 
-yaml_malloc(size_t size); 
- 
-YAML_DECLARE(void *) 
-yaml_realloc(void *ptr, size_t size); 
- 
-YAML_DECLARE(void) 
-yaml_free(void *ptr); 
- 
-YAML_DECLARE(yaml_char_t *) 
-yaml_strdup(const yaml_char_t *); 
- 
-/* 
- * Reader: Ensure that the buffer contains at least `length` characters. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_update_buffer(yaml_parser_t *parser, size_t length); 
- 
-/* 
- * Scanner: Ensure that the token stack contains at least one token ready. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_parser_fetch_more_tokens(yaml_parser_t *parser); 
- 
-/* 
- * The size of the input raw buffer. 
- */ 
- 
-#define INPUT_RAW_BUFFER_SIZE   16384 
- 
-/* 
- * The size of the input buffer. 
- * 
- * It should be possible to decode the whole raw buffer. 
- */ 
- 
-#define INPUT_BUFFER_SIZE       (INPUT_RAW_BUFFER_SIZE*3) 
- 
-/* 
- * The size of the output buffer. 
- */ 
- 
-#define OUTPUT_BUFFER_SIZE      16384 
- 
-/* 
- * The size of the output raw buffer. 
- * 
- * It should be possible to encode the whole output buffer. 
- */ 
- 
-#define OUTPUT_RAW_BUFFER_SIZE  (OUTPUT_BUFFER_SIZE*2+2) 
- 
-/* 
+
+#include <yaml.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <stddef.h>
+
+/*
+ * Memory management.
+ */
+
+YAML_DECLARE(void *)
+yaml_malloc(size_t size);
+
+YAML_DECLARE(void *)
+yaml_realloc(void *ptr, size_t size);
+
+YAML_DECLARE(void)
+yaml_free(void *ptr);
+
+YAML_DECLARE(yaml_char_t *)
+yaml_strdup(const yaml_char_t *);
+
+/*
+ * Reader: Ensure that the buffer contains at least `length` characters.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_update_buffer(yaml_parser_t *parser, size_t length);
+
+/*
+ * Scanner: Ensure that the token stack contains at least one token ready.
+ */
+
+YAML_DECLARE(int)
+yaml_parser_fetch_more_tokens(yaml_parser_t *parser);
+
+/*
+ * The size of the input raw buffer.
+ */
+
+#define INPUT_RAW_BUFFER_SIZE   16384
+
+/*
+ * The size of the input buffer.
+ *
+ * It should be possible to decode the whole raw buffer.
+ */
+
+#define INPUT_BUFFER_SIZE       (INPUT_RAW_BUFFER_SIZE*3)
+
+/*
+ * The size of the output buffer.
+ */
+
+#define OUTPUT_BUFFER_SIZE      16384
+
+/*
+ * The size of the output raw buffer.
+ *
+ * It should be possible to encode the whole output buffer.
+ */
+
+#define OUTPUT_RAW_BUFFER_SIZE  (OUTPUT_BUFFER_SIZE*2+2)
+
+/*
  * The maximum size of a YAML input file.
  * This used to be PTRDIFF_MAX, but that's not entirely portable
  * because stdint.h isn't available on all platforms.
@@ -78,586 +78,586 @@ yaml_parser_fetch_more_tokens(yaml_parser_t *parser);
 
 
 /*
- * The size of other stacks and queues. 
- */ 
- 
-#define INITIAL_STACK_SIZE  16 
-#define INITIAL_QUEUE_SIZE  16 
-#define INITIAL_STRING_SIZE 16 
- 
-/* 
- * Buffer management. 
- */ 
- 
-#define BUFFER_INIT(context,buffer,size)                                        \ 
+ * The size of other stacks and queues.
+ */
+
+#define INITIAL_STACK_SIZE  16
+#define INITIAL_QUEUE_SIZE  16
+#define INITIAL_STRING_SIZE 16
+
+/*
+ * Buffer management.
+ */
+
+#define BUFFER_INIT(context,buffer,size)                                        \
   (((buffer).start = (yaml_char_t *)yaml_malloc(size)) ?                        \
-        ((buffer).last = (buffer).pointer = (buffer).start,                     \ 
-         (buffer).end = (buffer).start+(size),                                  \ 
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-#define BUFFER_DEL(context,buffer)                                              \ 
-    (yaml_free((buffer).start),                                                 \ 
-     (buffer).start = (buffer).pointer = (buffer).end = 0) 
- 
-/* 
- * String management. 
- */ 
- 
-typedef struct { 
-    yaml_char_t *start; 
-    yaml_char_t *end; 
-    yaml_char_t *pointer; 
-} yaml_string_t; 
- 
-YAML_DECLARE(int) 
-yaml_string_extend(yaml_char_t **start, 
-        yaml_char_t **pointer, yaml_char_t **end); 
- 
-YAML_DECLARE(int) 
-yaml_string_join( 
-        yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end, 
-        yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end); 
- 
-#define NULL_STRING { NULL, NULL, NULL } 
- 
-#define STRING(string,length)   { (string), (string)+(length), (string) } 
- 
-#define STRING_ASSIGN(value,string,length)                                      \ 
-    ((value).start = (string),                                                  \ 
-     (value).end = (string)+(length),                                           \ 
-     (value).pointer = (string)) 
- 
-#define STRING_INIT(context,string,size)                                        \ 
+        ((buffer).last = (buffer).pointer = (buffer).start,                     \
+         (buffer).end = (buffer).start+(size),                                  \
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+#define BUFFER_DEL(context,buffer)                                              \
+    (yaml_free((buffer).start),                                                 \
+     (buffer).start = (buffer).pointer = (buffer).end = 0)
+
+/*
+ * String management.
+ */
+
+typedef struct {
+    yaml_char_t *start;
+    yaml_char_t *end;
+    yaml_char_t *pointer;
+} yaml_string_t;
+
+YAML_DECLARE(int)
+yaml_string_extend(yaml_char_t **start,
+        yaml_char_t **pointer, yaml_char_t **end);
+
+YAML_DECLARE(int)
+yaml_string_join(
+        yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end,
+        yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end);
+
+#define NULL_STRING { NULL, NULL, NULL }
+
+#define STRING(string,length)   { (string), (string)+(length), (string) }
+
+#define STRING_ASSIGN(value,string,length)                                      \
+    ((value).start = (string),                                                  \
+     (value).end = (string)+(length),                                           \
+     (value).pointer = (string))
+
+#define STRING_INIT(context,string,size)                                        \
     (((string).start = YAML_MALLOC(size)) ?                                     \
-        ((string).pointer = (string).start,                                     \ 
-         (string).end = (string).start+(size),                                  \ 
-         memset((string).start, 0, (size)),                                     \ 
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-#define STRING_DEL(context,string)                                              \ 
-    (yaml_free((string).start),                                                 \ 
-     (string).start = (string).pointer = (string).end = 0) 
- 
-#define STRING_EXTEND(context,string)                                           \ 
+        ((string).pointer = (string).start,                                     \
+         (string).end = (string).start+(size),                                  \
+         memset((string).start, 0, (size)),                                     \
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+#define STRING_DEL(context,string)                                              \
+    (yaml_free((string).start),                                                 \
+     (string).start = (string).pointer = (string).end = 0)
+
+#define STRING_EXTEND(context,string)                                           \
     ((((string).pointer+5 < (string).end)                                       \
-        || yaml_string_extend(&(string).start,                                  \ 
+        || yaml_string_extend(&(string).start,                                  \
             &(string).pointer, &(string).end)) ?                                \
          1 :                                                                    \
         ((context)->error = YAML_MEMORY_ERROR,                                  \
          0))
- 
-#define CLEAR(context,string)                                                   \ 
-    ((string).pointer = (string).start,                                         \ 
-     memset((string).start, 0, (string).end-(string).start)) 
- 
-#define JOIN(context,string_a,string_b)                                         \ 
-    ((yaml_string_join(&(string_a).start, &(string_a).pointer,                  \ 
-                       &(string_a).end, &(string_b).start,                      \ 
-                       &(string_b).pointer, &(string_b).end)) ?                 \ 
-        ((string_b).pointer = (string_b).start,                                 \ 
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-/* 
- * String check operations. 
- */ 
- 
-/* 
- * Check the octet at the specified position. 
- */ 
- 
+
+#define CLEAR(context,string)                                                   \
+    ((string).pointer = (string).start,                                         \
+     memset((string).start, 0, (string).end-(string).start))
+
+#define JOIN(context,string_a,string_b)                                         \
+    ((yaml_string_join(&(string_a).start, &(string_a).pointer,                  \
+                       &(string_a).end, &(string_b).start,                      \
+                       &(string_b).pointer, &(string_b).end)) ?                 \
+        ((string_b).pointer = (string_b).start,                                 \
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+/*
+ * String check operations.
+ */
+
+/*
+ * Check the octet at the specified position.
+ */
+
 #define CHECK_AT(string,octet,offset)                   \
-    ((string).pointer[offset] == (yaml_char_t)(octet)) 
- 
-/* 
- * Check the current octet in the buffer. 
- */ 
- 
+    ((string).pointer[offset] == (yaml_char_t)(octet))
+
+/*
+ * Check the current octet in the buffer.
+ */
+
 #define CHECK(string,octet) (CHECK_AT((string),(octet),0))
- 
-/* 
- * Check if the character at the specified position is an alphabetical 
- * character, a digit, '_', or '-'. 
- */ 
- 
-#define IS_ALPHA_AT(string,offset)                                              \ 
-     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \ 
-       (string).pointer[offset] <= (yaml_char_t) '9') ||                        \ 
-      ((string).pointer[offset] >= (yaml_char_t) 'A' &&                         \ 
-       (string).pointer[offset] <= (yaml_char_t) 'Z') ||                        \ 
-      ((string).pointer[offset] >= (yaml_char_t) 'a' &&                         \ 
-       (string).pointer[offset] <= (yaml_char_t) 'z') ||                        \ 
-      (string).pointer[offset] == '_' ||                                        \ 
-      (string).pointer[offset] == '-') 
- 
-#define IS_ALPHA(string)    IS_ALPHA_AT((string),0) 
- 
-/* 
- * Check if the character at the specified position is a digit. 
- */ 
- 
-#define IS_DIGIT_AT(string,offset)                                              \ 
-     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \ 
-       (string).pointer[offset] <= (yaml_char_t) '9')) 
- 
-#define IS_DIGIT(string)    IS_DIGIT_AT((string),0) 
- 
-/* 
- * Get the value of a digit. 
- */ 
- 
-#define AS_DIGIT_AT(string,offset)                                              \ 
-     ((string).pointer[offset] - (yaml_char_t) '0') 
- 
-#define AS_DIGIT(string)    AS_DIGIT_AT((string),0) 
- 
-/* 
- * Check if the character at the specified position is a hex-digit. 
- */ 
- 
-#define IS_HEX_AT(string,offset)                                                \ 
-     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \ 
-       (string).pointer[offset] <= (yaml_char_t) '9') ||                        \ 
-      ((string).pointer[offset] >= (yaml_char_t) 'A' &&                         \ 
-       (string).pointer[offset] <= (yaml_char_t) 'F') ||                        \ 
-      ((string).pointer[offset] >= (yaml_char_t) 'a' &&                         \ 
-       (string).pointer[offset] <= (yaml_char_t) 'f')) 
- 
-#define IS_HEX(string)    IS_HEX_AT((string),0) 
- 
-/* 
- * Get the value of a hex-digit. 
- */ 
- 
-#define AS_HEX_AT(string,offset)                                                \ 
-      (((string).pointer[offset] >= (yaml_char_t) 'A' &&                        \ 
-        (string).pointer[offset] <= (yaml_char_t) 'F') ?                        \ 
-       ((string).pointer[offset] - (yaml_char_t) 'A' + 10) :                    \ 
-       ((string).pointer[offset] >= (yaml_char_t) 'a' &&                        \ 
-        (string).pointer[offset] <= (yaml_char_t) 'f') ?                        \ 
-       ((string).pointer[offset] - (yaml_char_t) 'a' + 10) :                    \ 
-       ((string).pointer[offset] - (yaml_char_t) '0')) 
- 
-#define AS_HEX(string)  AS_HEX_AT((string),0) 
- 
-/* 
- * Check if the character is ASCII. 
- */ 
- 
-#define IS_ASCII_AT(string,offset)                                              \ 
-    ((string).pointer[offset] <= (yaml_char_t) '\x7F') 
- 
-#define IS_ASCII(string)    IS_ASCII_AT((string),0) 
- 
-/* 
- * Check if the character can be printed unescaped. 
- */ 
- 
-#define IS_PRINTABLE_AT(string,offset)                                          \ 
-    (((string).pointer[offset] == 0x0A)         /* . == #x0A */                 \ 
-     || ((string).pointer[offset] >= 0x20       /* #x20 <= . <= #x7E */         \ 
-         && (string).pointer[offset] <= 0x7E)                                   \ 
-     || ((string).pointer[offset] == 0xC2       /* #0xA0 <= . <= #xD7FF */      \ 
-         && (string).pointer[offset+1] >= 0xA0)                                 \ 
-     || ((string).pointer[offset] > 0xC2                                        \ 
-         && (string).pointer[offset] < 0xED)                                    \ 
-     || ((string).pointer[offset] == 0xED                                       \ 
-         && (string).pointer[offset+1] < 0xA0)                                  \ 
-     || ((string).pointer[offset] == 0xEE)                                      \ 
-     || ((string).pointer[offset] == 0xEF      /* #xE000 <= . <= #xFFFD */      \ 
-         && !((string).pointer[offset+1] == 0xBB        /* && . != #xFEFF */    \ 
-             && (string).pointer[offset+2] == 0xBF)                             \ 
-         && !((string).pointer[offset+1] == 0xBF                                \ 
-             && ((string).pointer[offset+2] == 0xBE                             \ 
-                 || (string).pointer[offset+2] == 0xBF)))) 
- 
-#define IS_PRINTABLE(string)    IS_PRINTABLE_AT((string),0) 
- 
-/* 
- * Check if the character at the specified position is NUL. 
- */ 
- 
-#define IS_Z_AT(string,offset)    CHECK_AT((string),'\0',(offset)) 
- 
-#define IS_Z(string)    IS_Z_AT((string),0) 
- 
-/* 
- * Check if the character at the specified position is BOM. 
- */ 
- 
-#define IS_BOM_AT(string,offset)                                                \ 
-     (CHECK_AT((string),'\xEF',(offset))                                        \ 
-      && CHECK_AT((string),'\xBB',(offset)+1)                                   \ 
-      && CHECK_AT((string),'\xBF',(offset)+2))  /* BOM (#xFEFF) */ 
- 
-#define IS_BOM(string)  IS_BOM_AT(string,0) 
- 
-/* 
- * Check if the character at the specified position is space. 
- */ 
- 
-#define IS_SPACE_AT(string,offset)  CHECK_AT((string),' ',(offset)) 
- 
-#define IS_SPACE(string)    IS_SPACE_AT((string),0) 
- 
-/* 
- * Check if the character at the specified position is tab. 
- */ 
- 
-#define IS_TAB_AT(string,offset)    CHECK_AT((string),'\t',(offset)) 
- 
-#define IS_TAB(string)  IS_TAB_AT((string),0) 
- 
-/* 
- * Check if the character at the specified position is blank (space or tab). 
- */ 
- 
-#define IS_BLANK_AT(string,offset)                                              \ 
-    (IS_SPACE_AT((string),(offset)) || IS_TAB_AT((string),(offset))) 
- 
-#define IS_BLANK(string)    IS_BLANK_AT((string),0) 
- 
-/* 
- * Check if the character at the specified position is a line break. 
- */ 
- 
-#define IS_BREAK_AT(string,offset)                                              \ 
-    (CHECK_AT((string),'\r',(offset))               /* CR (#xD)*/               \ 
-     || CHECK_AT((string),'\n',(offset))            /* LF (#xA) */              \ 
-     || (CHECK_AT((string),'\xC2',(offset))                                     \ 
-         && CHECK_AT((string),'\x85',(offset)+1))   /* NEL (#x85) */            \ 
-     || (CHECK_AT((string),'\xE2',(offset))                                     \ 
-         && CHECK_AT((string),'\x80',(offset)+1)                                \ 
-         && CHECK_AT((string),'\xA8',(offset)+2))   /* LS (#x2028) */           \ 
-     || (CHECK_AT((string),'\xE2',(offset))                                     \ 
-         && CHECK_AT((string),'\x80',(offset)+1)                                \ 
-         && CHECK_AT((string),'\xA9',(offset)+2)))  /* PS (#x2029) */ 
- 
-#define IS_BREAK(string)    IS_BREAK_AT((string),0) 
- 
-#define IS_CRLF_AT(string,offset)                                               \ 
-     (CHECK_AT((string),'\r',(offset)) && CHECK_AT((string),'\n',(offset)+1)) 
- 
-#define IS_CRLF(string) IS_CRLF_AT((string),0) 
- 
-/* 
- * Check if the character is a line break or NUL. 
- */ 
- 
-#define IS_BREAKZ_AT(string,offset)                                             \ 
-    (IS_BREAK_AT((string),(offset)) || IS_Z_AT((string),(offset))) 
- 
-#define IS_BREAKZ(string)   IS_BREAKZ_AT((string),0) 
- 
-/* 
- * Check if the character is a line break, space, or NUL. 
- */ 
- 
-#define IS_SPACEZ_AT(string,offset)                                             \ 
-    (IS_SPACE_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset))) 
- 
-#define IS_SPACEZ(string)   IS_SPACEZ_AT((string),0) 
- 
-/* 
- * Check if the character is a line break, space, tab, or NUL. 
- */ 
- 
-#define IS_BLANKZ_AT(string,offset)                                             \ 
-    (IS_BLANK_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset))) 
- 
-#define IS_BLANKZ(string)   IS_BLANKZ_AT((string),0) 
- 
-/* 
- * Determine the width of the character. 
- */ 
- 
-#define WIDTH_AT(string,offset)                                                 \ 
-     (((string).pointer[offset] & 0x80) == 0x00 ? 1 :                           \ 
-      ((string).pointer[offset] & 0xE0) == 0xC0 ? 2 :                           \ 
-      ((string).pointer[offset] & 0xF0) == 0xE0 ? 3 :                           \ 
-      ((string).pointer[offset] & 0xF8) == 0xF0 ? 4 : 0) 
- 
-#define WIDTH(string)   WIDTH_AT((string),0) 
- 
-/* 
- * Move the string pointer to the next character. 
- */ 
- 
-#define MOVE(string)    ((string).pointer += WIDTH((string))) 
- 
-/* 
- * Copy a character and move the pointers of both strings. 
- */ 
- 
-#define COPY(string_a,string_b)                                                 \ 
-    ((*(string_b).pointer & 0x80) == 0x00 ?                                     \ 
-     (*((string_a).pointer++) = *((string_b).pointer++)) :                      \ 
-     (*(string_b).pointer & 0xE0) == 0xC0 ?                                     \ 
-     (*((string_a).pointer++) = *((string_b).pointer++),                        \ 
-      *((string_a).pointer++) = *((string_b).pointer++)) :                      \ 
-     (*(string_b).pointer & 0xF0) == 0xE0 ?                                     \ 
-     (*((string_a).pointer++) = *((string_b).pointer++),                        \ 
-      *((string_a).pointer++) = *((string_b).pointer++),                        \ 
-      *((string_a).pointer++) = *((string_b).pointer++)) :                      \ 
-     (*(string_b).pointer & 0xF8) == 0xF0 ?                                     \ 
-     (*((string_a).pointer++) = *((string_b).pointer++),                        \ 
-      *((string_a).pointer++) = *((string_b).pointer++),                        \ 
-      *((string_a).pointer++) = *((string_b).pointer++),                        \ 
-      *((string_a).pointer++) = *((string_b).pointer++)) : 0) 
- 
-/* 
- * Stack and queue management. 
- */ 
- 
-YAML_DECLARE(int) 
-yaml_stack_extend(void **start, void **top, void **end); 
- 
-YAML_DECLARE(int) 
-yaml_queue_extend(void **start, void **head, void **tail, void **end); 
- 
+
+/*
+ * Check if the character at the specified position is an alphabetical
+ * character, a digit, '_', or '-'.
+ */
+
+#define IS_ALPHA_AT(string,offset)                                              \
+     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \
+       (string).pointer[offset] <= (yaml_char_t) '9') ||                        \
+      ((string).pointer[offset] >= (yaml_char_t) 'A' &&                         \
+       (string).pointer[offset] <= (yaml_char_t) 'Z') ||                        \
+      ((string).pointer[offset] >= (yaml_char_t) 'a' &&                         \
+       (string).pointer[offset] <= (yaml_char_t) 'z') ||                        \
+      (string).pointer[offset] == '_' ||                                        \
+      (string).pointer[offset] == '-')
+
+#define IS_ALPHA(string)    IS_ALPHA_AT((string),0)
+
+/*
+ * Check if the character at the specified position is a digit.
+ */
+
+#define IS_DIGIT_AT(string,offset)                                              \
+     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \
+       (string).pointer[offset] <= (yaml_char_t) '9'))
+
+#define IS_DIGIT(string)    IS_DIGIT_AT((string),0)
+
+/*
+ * Get the value of a digit.
+ */
+
+#define AS_DIGIT_AT(string,offset)                                              \
+     ((string).pointer[offset] - (yaml_char_t) '0')
+
+#define AS_DIGIT(string)    AS_DIGIT_AT((string),0)
+
+/*
+ * Check if the character at the specified position is a hex-digit.
+ */
+
+#define IS_HEX_AT(string,offset)                                                \
+     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \
+       (string).pointer[offset] <= (yaml_char_t) '9') ||                        \
+      ((string).pointer[offset] >= (yaml_char_t) 'A' &&                         \
+       (string).pointer[offset] <= (yaml_char_t) 'F') ||                        \
+      ((string).pointer[offset] >= (yaml_char_t) 'a' &&                         \
+       (string).pointer[offset] <= (yaml_char_t) 'f'))
+
+#define IS_HEX(string)    IS_HEX_AT((string),0)
+
+/*
+ * Get the value of a hex-digit.
+ */
+
+#define AS_HEX_AT(string,offset)                                                \
+      (((string).pointer[offset] >= (yaml_char_t) 'A' &&                        \
+        (string).pointer[offset] <= (yaml_char_t) 'F') ?                        \
+       ((string).pointer[offset] - (yaml_char_t) 'A' + 10) :                    \
+       ((string).pointer[offset] >= (yaml_char_t) 'a' &&                        \
+        (string).pointer[offset] <= (yaml_char_t) 'f') ?                        \
+       ((string).pointer[offset] - (yaml_char_t) 'a' + 10) :                    \
+       ((string).pointer[offset] - (yaml_char_t) '0'))
+
+#define AS_HEX(string)  AS_HEX_AT((string),0)
+
+/*
+ * Check if the character is ASCII.
+ */
+
+#define IS_ASCII_AT(string,offset)                                              \
+    ((string).pointer[offset] <= (yaml_char_t) '\x7F')
+
+#define IS_ASCII(string)    IS_ASCII_AT((string),0)
+
+/*
+ * Check if the character can be printed unescaped.
+ */
+
+#define IS_PRINTABLE_AT(string,offset)                                          \
+    (((string).pointer[offset] == 0x0A)         /* . == #x0A */                 \
+     || ((string).pointer[offset] >= 0x20       /* #x20 <= . <= #x7E */         \
+         && (string).pointer[offset] <= 0x7E)                                   \
+     || ((string).pointer[offset] == 0xC2       /* #0xA0 <= . <= #xD7FF */      \
+         && (string).pointer[offset+1] >= 0xA0)                                 \
+     || ((string).pointer[offset] > 0xC2                                        \
+         && (string).pointer[offset] < 0xED)                                    \
+     || ((string).pointer[offset] == 0xED                                       \
+         && (string).pointer[offset+1] < 0xA0)                                  \
+     || ((string).pointer[offset] == 0xEE)                                      \
+     || ((string).pointer[offset] == 0xEF      /* #xE000 <= . <= #xFFFD */      \
+         && !((string).pointer[offset+1] == 0xBB        /* && . != #xFEFF */    \
+             && (string).pointer[offset+2] == 0xBF)                             \
+         && !((string).pointer[offset+1] == 0xBF                                \
+             && ((string).pointer[offset+2] == 0xBE                             \
+                 || (string).pointer[offset+2] == 0xBF))))
+
+#define IS_PRINTABLE(string)    IS_PRINTABLE_AT((string),0)
+
+/*
+ * Check if the character at the specified position is NUL.
+ */
+
+#define IS_Z_AT(string,offset)    CHECK_AT((string),'\0',(offset))
+
+#define IS_Z(string)    IS_Z_AT((string),0)
+
+/*
+ * Check if the character at the specified position is BOM.
+ */
+
+#define IS_BOM_AT(string,offset)                                                \
+     (CHECK_AT((string),'\xEF',(offset))                                        \
+      && CHECK_AT((string),'\xBB',(offset)+1)                                   \
+      && CHECK_AT((string),'\xBF',(offset)+2))  /* BOM (#xFEFF) */
+
+#define IS_BOM(string)  IS_BOM_AT(string,0)
+
+/*
+ * Check if the character at the specified position is space.
+ */
+
+#define IS_SPACE_AT(string,offset)  CHECK_AT((string),' ',(offset))
+
+#define IS_SPACE(string)    IS_SPACE_AT((string),0)
+
+/*
+ * Check if the character at the specified position is tab.
+ */
+
+#define IS_TAB_AT(string,offset)    CHECK_AT((string),'\t',(offset))
+
+#define IS_TAB(string)  IS_TAB_AT((string),0)
+
+/*
+ * Check if the character at the specified position is blank (space or tab).
+ */
+
+#define IS_BLANK_AT(string,offset)                                              \
+    (IS_SPACE_AT((string),(offset)) || IS_TAB_AT((string),(offset)))
+
+#define IS_BLANK(string)    IS_BLANK_AT((string),0)
+
+/*
+ * Check if the character at the specified position is a line break.
+ */
+
+#define IS_BREAK_AT(string,offset)                                              \
+    (CHECK_AT((string),'\r',(offset))               /* CR (#xD)*/               \
+     || CHECK_AT((string),'\n',(offset))            /* LF (#xA) */              \
+     || (CHECK_AT((string),'\xC2',(offset))                                     \
+         && CHECK_AT((string),'\x85',(offset)+1))   /* NEL (#x85) */            \
+     || (CHECK_AT((string),'\xE2',(offset))                                     \
+         && CHECK_AT((string),'\x80',(offset)+1)                                \
+         && CHECK_AT((string),'\xA8',(offset)+2))   /* LS (#x2028) */           \
+     || (CHECK_AT((string),'\xE2',(offset))                                     \
+         && CHECK_AT((string),'\x80',(offset)+1)                                \
+         && CHECK_AT((string),'\xA9',(offset)+2)))  /* PS (#x2029) */
+
+#define IS_BREAK(string)    IS_BREAK_AT((string),0)
+
+#define IS_CRLF_AT(string,offset)                                               \
+     (CHECK_AT((string),'\r',(offset)) && CHECK_AT((string),'\n',(offset)+1))
+
+#define IS_CRLF(string) IS_CRLF_AT((string),0)
+
+/*
+ * Check if the character is a line break or NUL.
+ */
+
+#define IS_BREAKZ_AT(string,offset)                                             \
+    (IS_BREAK_AT((string),(offset)) || IS_Z_AT((string),(offset)))
+
+#define IS_BREAKZ(string)   IS_BREAKZ_AT((string),0)
+
+/*
+ * Check if the character is a line break, space, or NUL.
+ */
+
+#define IS_SPACEZ_AT(string,offset)                                             \
+    (IS_SPACE_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))
+
+#define IS_SPACEZ(string)   IS_SPACEZ_AT((string),0)
+
+/*
+ * Check if the character is a line break, space, tab, or NUL.
+ */
+
+#define IS_BLANKZ_AT(string,offset)                                             \
+    (IS_BLANK_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))
+
+#define IS_BLANKZ(string)   IS_BLANKZ_AT((string),0)
+
+/*
+ * Determine the width of the character.
+ */
+
+#define WIDTH_AT(string,offset)                                                 \
+     (((string).pointer[offset] & 0x80) == 0x00 ? 1 :                           \
+      ((string).pointer[offset] & 0xE0) == 0xC0 ? 2 :                           \
+      ((string).pointer[offset] & 0xF0) == 0xE0 ? 3 :                           \
+      ((string).pointer[offset] & 0xF8) == 0xF0 ? 4 : 0)
+
+#define WIDTH(string)   WIDTH_AT((string),0)
+
+/*
+ * Move the string pointer to the next character.
+ */
+
+#define MOVE(string)    ((string).pointer += WIDTH((string)))
+
+/*
+ * Copy a character and move the pointers of both strings.
+ */
+
+#define COPY(string_a,string_b)                                                 \
+    ((*(string_b).pointer & 0x80) == 0x00 ?                                     \
+     (*((string_a).pointer++) = *((string_b).pointer++)) :                      \
+     (*(string_b).pointer & 0xE0) == 0xC0 ?                                     \
+     (*((string_a).pointer++) = *((string_b).pointer++),                        \
+      *((string_a).pointer++) = *((string_b).pointer++)) :                      \
+     (*(string_b).pointer & 0xF0) == 0xE0 ?                                     \
+     (*((string_a).pointer++) = *((string_b).pointer++),                        \
+      *((string_a).pointer++) = *((string_b).pointer++),                        \
+      *((string_a).pointer++) = *((string_b).pointer++)) :                      \
+     (*(string_b).pointer & 0xF8) == 0xF0 ?                                     \
+     (*((string_a).pointer++) = *((string_b).pointer++),                        \
+      *((string_a).pointer++) = *((string_b).pointer++),                        \
+      *((string_a).pointer++) = *((string_b).pointer++),                        \
+      *((string_a).pointer++) = *((string_b).pointer++)) : 0)
+
+/*
+ * Stack and queue management.
+ */
+
+YAML_DECLARE(int)
+yaml_stack_extend(void **start, void **top, void **end);
+
+YAML_DECLARE(int)
+yaml_queue_extend(void **start, void **head, void **tail, void **end);
+
 #define STACK_INIT(context,stack,type)                                     \
   (((stack).start = (type)yaml_malloc(INITIAL_STACK_SIZE*sizeof(*(stack).start))) ? \
-        ((stack).top = (stack).start,                                           \ 
+        ((stack).top = (stack).start,                                           \
          (stack).end = (stack).start+INITIAL_STACK_SIZE,                        \
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-#define STACK_DEL(context,stack)                                                \ 
-    (yaml_free((stack).start),                                                  \ 
-     (stack).start = (stack).top = (stack).end = 0) 
- 
-#define STACK_EMPTY(context,stack)                                              \ 
-    ((stack).start == (stack).top) 
- 
-#define STACK_LIMIT(context,stack,size)                                         \ 
-    ((stack).top - (stack).start < (size) ?                                     \ 
-        1 :                                                                     \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-#define PUSH(context,stack,value)                                               \ 
-    (((stack).top != (stack).end                                                \ 
-      || yaml_stack_extend((void **)&(stack).start,                             \ 
-              (void **)&(stack).top, (void **)&(stack).end)) ?                  \ 
-        (*((stack).top++) = value,                                              \ 
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-#define POP(context,stack)                                                      \ 
-    (*(--(stack).top)) 
- 
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+#define STACK_DEL(context,stack)                                                \
+    (yaml_free((stack).start),                                                  \
+     (stack).start = (stack).top = (stack).end = 0)
+
+#define STACK_EMPTY(context,stack)                                              \
+    ((stack).start == (stack).top)
+
+#define STACK_LIMIT(context,stack,size)                                         \
+    ((stack).top - (stack).start < (size) ?                                     \
+        1 :                                                                     \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+#define PUSH(context,stack,value)                                               \
+    (((stack).top != (stack).end                                                \
+      || yaml_stack_extend((void **)&(stack).start,                             \
+              (void **)&(stack).top, (void **)&(stack).end)) ?                  \
+        (*((stack).top++) = value,                                              \
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+#define POP(context,stack)                                                      \
+    (*(--(stack).top))
+
 #define QUEUE_INIT(context,queue,size,type)                                     \
   (((queue).start = (type)yaml_malloc((size)*sizeof(*(queue).start))) ?         \
-        ((queue).head = (queue).tail = (queue).start,                           \ 
-         (queue).end = (queue).start+(size),                                    \ 
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-#define QUEUE_DEL(context,queue)                                                \ 
-    (yaml_free((queue).start),                                                  \ 
-     (queue).start = (queue).head = (queue).tail = (queue).end = 0) 
- 
-#define QUEUE_EMPTY(context,queue)                                              \ 
-    ((queue).head == (queue).tail) 
- 
-#define ENQUEUE(context,queue,value)                                            \ 
-    (((queue).tail != (queue).end                                               \ 
-      || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head,     \ 
-            (void **)&(queue).tail, (void **)&(queue).end)) ?                   \ 
-        (*((queue).tail++) = value,                                             \ 
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-#define DEQUEUE(context,queue)                                                  \ 
-    (*((queue).head++)) 
- 
-#define QUEUE_INSERT(context,queue,index,value)                                 \ 
-    (((queue).tail != (queue).end                                               \ 
-      || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head,     \ 
-            (void **)&(queue).tail, (void **)&(queue).end)) ?                   \ 
-        (memmove((queue).head+(index)+1,(queue).head+(index),                   \ 
-            ((queue).tail-(queue).head-(index))*sizeof(*(queue).start)),        \ 
-         *((queue).head+(index)) = value,                                       \ 
-         (queue).tail++,                                                        \ 
-         1) :                                                                   \ 
-        ((context)->error = YAML_MEMORY_ERROR,                                  \ 
-         0)) 
- 
-/* 
- * Token initializers. 
- */ 
- 
-#define TOKEN_INIT(token,token_type,token_start_mark,token_end_mark)            \ 
-    (memset(&(token), 0, sizeof(yaml_token_t)),                                 \ 
-     (token).type = (token_type),                                               \ 
-     (token).start_mark = (token_start_mark),                                   \ 
-     (token).end_mark = (token_end_mark)) 
- 
-#define STREAM_START_TOKEN_INIT(token,token_encoding,start_mark,end_mark)       \ 
-    (TOKEN_INIT((token),YAML_STREAM_START_TOKEN,(start_mark),(end_mark)),       \ 
-     (token).data.stream_start.encoding = (token_encoding)) 
- 
-#define STREAM_END_TOKEN_INIT(token,start_mark,end_mark)                        \ 
-    (TOKEN_INIT((token),YAML_STREAM_END_TOKEN,(start_mark),(end_mark))) 
- 
-#define ALIAS_TOKEN_INIT(token,token_value,start_mark,end_mark)                 \ 
-    (TOKEN_INIT((token),YAML_ALIAS_TOKEN,(start_mark),(end_mark)),              \ 
-     (token).data.alias.value = (token_value)) 
- 
-#define ANCHOR_TOKEN_INIT(token,token_value,start_mark,end_mark)                \ 
-    (TOKEN_INIT((token),YAML_ANCHOR_TOKEN,(start_mark),(end_mark)),             \ 
-     (token).data.anchor.value = (token_value)) 
- 
-#define TAG_TOKEN_INIT(token,token_handle,token_suffix,start_mark,end_mark)     \ 
-    (TOKEN_INIT((token),YAML_TAG_TOKEN,(start_mark),(end_mark)),                \ 
-     (token).data.tag.handle = (token_handle),                                  \ 
-     (token).data.tag.suffix = (token_suffix)) 
- 
-#define SCALAR_TOKEN_INIT(token,token_value,token_length,token_style,start_mark,end_mark)   \ 
-    (TOKEN_INIT((token),YAML_SCALAR_TOKEN,(start_mark),(end_mark)),             \ 
-     (token).data.scalar.value = (token_value),                                 \ 
-     (token).data.scalar.length = (token_length),                               \ 
-     (token).data.scalar.style = (token_style)) 
- 
-#define VERSION_DIRECTIVE_TOKEN_INIT(token,token_major,token_minor,start_mark,end_mark)     \ 
-    (TOKEN_INIT((token),YAML_VERSION_DIRECTIVE_TOKEN,(start_mark),(end_mark)),  \ 
-     (token).data.version_directive.major = (token_major),                      \ 
-     (token).data.version_directive.minor = (token_minor)) 
- 
-#define TAG_DIRECTIVE_TOKEN_INIT(token,token_handle,token_prefix,start_mark,end_mark)       \ 
-    (TOKEN_INIT((token),YAML_TAG_DIRECTIVE_TOKEN,(start_mark),(end_mark)),      \ 
-     (token).data.tag_directive.handle = (token_handle),                        \ 
-     (token).data.tag_directive.prefix = (token_prefix)) 
- 
-/* 
- * Event initializers. 
- */ 
- 
-#define EVENT_INIT(event,event_type,event_start_mark,event_end_mark)            \ 
-    (memset(&(event), 0, sizeof(yaml_event_t)),                                 \ 
-     (event).type = (event_type),                                               \ 
-     (event).start_mark = (event_start_mark),                                   \ 
-     (event).end_mark = (event_end_mark)) 
- 
-#define STREAM_START_EVENT_INIT(event,event_encoding,start_mark,end_mark)       \ 
-    (EVENT_INIT((event),YAML_STREAM_START_EVENT,(start_mark),(end_mark)),       \ 
-     (event).data.stream_start.encoding = (event_encoding)) 
- 
-#define STREAM_END_EVENT_INIT(event,start_mark,end_mark)                        \ 
-    (EVENT_INIT((event),YAML_STREAM_END_EVENT,(start_mark),(end_mark))) 
- 
-#define DOCUMENT_START_EVENT_INIT(event,event_version_directive,                \ 
-        event_tag_directives_start,event_tag_directives_end,event_implicit,start_mark,end_mark) \ 
-    (EVENT_INIT((event),YAML_DOCUMENT_START_EVENT,(start_mark),(end_mark)),     \ 
-     (event).data.document_start.version_directive = (event_version_directive), \ 
-     (event).data.document_start.tag_directives.start = (event_tag_directives_start),   \ 
-     (event).data.document_start.tag_directives.end = (event_tag_directives_end),   \ 
-     (event).data.document_start.implicit = (event_implicit)) 
- 
-#define DOCUMENT_END_EVENT_INIT(event,event_implicit,start_mark,end_mark)       \ 
-    (EVENT_INIT((event),YAML_DOCUMENT_END_EVENT,(start_mark),(end_mark)),       \ 
-     (event).data.document_end.implicit = (event_implicit)) 
- 
-#define ALIAS_EVENT_INIT(event,event_anchor,start_mark,end_mark)                \ 
-    (EVENT_INIT((event),YAML_ALIAS_EVENT,(start_mark),(end_mark)),              \ 
-     (event).data.alias.anchor = (event_anchor)) 
- 
-#define SCALAR_EVENT_INIT(event,event_anchor,event_tag,event_value,event_length,    \ 
-        event_plain_implicit, event_quoted_implicit,event_style,start_mark,end_mark)    \ 
-    (EVENT_INIT((event),YAML_SCALAR_EVENT,(start_mark),(end_mark)),             \ 
-     (event).data.scalar.anchor = (event_anchor),                               \ 
-     (event).data.scalar.tag = (event_tag),                                     \ 
-     (event).data.scalar.value = (event_value),                                 \ 
-     (event).data.scalar.length = (event_length),                               \ 
-     (event).data.scalar.plain_implicit = (event_plain_implicit),               \ 
-     (event).data.scalar.quoted_implicit = (event_quoted_implicit),             \ 
-     (event).data.scalar.style = (event_style)) 
- 
-#define SEQUENCE_START_EVENT_INIT(event,event_anchor,event_tag,                 \ 
-        event_implicit,event_style,start_mark,end_mark)                         \ 
-    (EVENT_INIT((event),YAML_SEQUENCE_START_EVENT,(start_mark),(end_mark)),     \ 
-     (event).data.sequence_start.anchor = (event_anchor),                       \ 
-     (event).data.sequence_start.tag = (event_tag),                             \ 
-     (event).data.sequence_start.implicit = (event_implicit),                   \ 
-     (event).data.sequence_start.style = (event_style)) 
- 
-#define SEQUENCE_END_EVENT_INIT(event,start_mark,end_mark)                      \ 
-    (EVENT_INIT((event),YAML_SEQUENCE_END_EVENT,(start_mark),(end_mark))) 
- 
-#define MAPPING_START_EVENT_INIT(event,event_anchor,event_tag,                  \ 
-        event_implicit,event_style,start_mark,end_mark)                         \ 
-    (EVENT_INIT((event),YAML_MAPPING_START_EVENT,(start_mark),(end_mark)),      \ 
-     (event).data.mapping_start.anchor = (event_anchor),                        \ 
-     (event).data.mapping_start.tag = (event_tag),                              \ 
-     (event).data.mapping_start.implicit = (event_implicit),                    \ 
-     (event).data.mapping_start.style = (event_style)) 
- 
-#define MAPPING_END_EVENT_INIT(event,start_mark,end_mark)                       \ 
-    (EVENT_INIT((event),YAML_MAPPING_END_EVENT,(start_mark),(end_mark))) 
- 
-/* 
- * Document initializer. 
- */ 
- 
-#define DOCUMENT_INIT(document,document_nodes_start,document_nodes_end,         \ 
-        document_version_directive,document_tag_directives_start,               \ 
-        document_tag_directives_end,document_start_implicit,                    \ 
-        document_end_implicit,document_start_mark,document_end_mark)            \ 
-    (memset(&(document), 0, sizeof(yaml_document_t)),                           \ 
-     (document).nodes.start = (document_nodes_start),                           \ 
-     (document).nodes.end = (document_nodes_end),                               \ 
-     (document).nodes.top = (document_nodes_start),                             \ 
-     (document).version_directive = (document_version_directive),               \ 
-     (document).tag_directives.start = (document_tag_directives_start),         \ 
-     (document).tag_directives.end = (document_tag_directives_end),             \ 
-     (document).start_implicit = (document_start_implicit),                     \ 
-     (document).end_implicit = (document_end_implicit),                         \ 
-     (document).start_mark = (document_start_mark),                             \ 
-     (document).end_mark = (document_end_mark)) 
- 
-/* 
- * Node initializers. 
- */ 
- 
-#define NODE_INIT(node,node_type,node_tag,node_start_mark,node_end_mark)        \ 
-    (memset(&(node), 0, sizeof(yaml_node_t)),                                   \ 
-     (node).type = (node_type),                                                 \ 
-     (node).tag = (node_tag),                                                   \ 
-     (node).start_mark = (node_start_mark),                                     \ 
-     (node).end_mark = (node_end_mark)) 
- 
-#define SCALAR_NODE_INIT(node,node_tag,node_value,node_length,                  \ 
-        node_style,start_mark,end_mark)                                         \ 
-    (NODE_INIT((node),YAML_SCALAR_NODE,(node_tag),(start_mark),(end_mark)),     \ 
-     (node).data.scalar.value = (node_value),                                   \ 
-     (node).data.scalar.length = (node_length),                                 \ 
-     (node).data.scalar.style = (node_style)) 
- 
-#define SEQUENCE_NODE_INIT(node,node_tag,node_items_start,node_items_end,       \ 
-        node_style,start_mark,end_mark)                                         \ 
-    (NODE_INIT((node),YAML_SEQUENCE_NODE,(node_tag),(start_mark),(end_mark)),   \ 
-     (node).data.sequence.items.start = (node_items_start),                     \ 
-     (node).data.sequence.items.end = (node_items_end),                         \ 
-     (node).data.sequence.items.top = (node_items_start),                       \ 
-     (node).data.sequence.style = (node_style)) 
- 
-#define MAPPING_NODE_INIT(node,node_tag,node_pairs_start,node_pairs_end,        \ 
-        node_style,start_mark,end_mark)                                         \ 
-    (NODE_INIT((node),YAML_MAPPING_NODE,(node_tag),(start_mark),(end_mark)),    \ 
-     (node).data.mapping.pairs.start = (node_pairs_start),                      \ 
-     (node).data.mapping.pairs.end = (node_pairs_end),                          \ 
-     (node).data.mapping.pairs.top = (node_pairs_start),                        \ 
-     (node).data.mapping.style = (node_style)) 
- 
+        ((queue).head = (queue).tail = (queue).start,                           \
+         (queue).end = (queue).start+(size),                                    \
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+#define QUEUE_DEL(context,queue)                                                \
+    (yaml_free((queue).start),                                                  \
+     (queue).start = (queue).head = (queue).tail = (queue).end = 0)
+
+#define QUEUE_EMPTY(context,queue)                                              \
+    ((queue).head == (queue).tail)
+
+#define ENQUEUE(context,queue,value)                                            \
+    (((queue).tail != (queue).end                                               \
+      || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head,     \
+            (void **)&(queue).tail, (void **)&(queue).end)) ?                   \
+        (*((queue).tail++) = value,                                             \
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+#define DEQUEUE(context,queue)                                                  \
+    (*((queue).head++))
+
+#define QUEUE_INSERT(context,queue,index,value)                                 \
+    (((queue).tail != (queue).end                                               \
+      || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head,     \
+            (void **)&(queue).tail, (void **)&(queue).end)) ?                   \
+        (memmove((queue).head+(index)+1,(queue).head+(index),                   \
+            ((queue).tail-(queue).head-(index))*sizeof(*(queue).start)),        \
+         *((queue).head+(index)) = value,                                       \
+         (queue).tail++,                                                        \
+         1) :                                                                   \
+        ((context)->error = YAML_MEMORY_ERROR,                                  \
+         0))
+
+/*
+ * Token initializers.
+ */
+
+#define TOKEN_INIT(token,token_type,token_start_mark,token_end_mark)            \
+    (memset(&(token), 0, sizeof(yaml_token_t)),                                 \
+     (token).type = (token_type),                                               \
+     (token).start_mark = (token_start_mark),                                   \
+     (token).end_mark = (token_end_mark))
+
+#define STREAM_START_TOKEN_INIT(token,token_encoding,start_mark,end_mark)       \
+    (TOKEN_INIT((token),YAML_STREAM_START_TOKEN,(start_mark),(end_mark)),       \
+     (token).data.stream_start.encoding = (token_encoding))
+
+#define STREAM_END_TOKEN_INIT(token,start_mark,end_mark)                        \
+    (TOKEN_INIT((token),YAML_STREAM_END_TOKEN,(start_mark),(end_mark)))
+
+#define ALIAS_TOKEN_INIT(token,token_value,start_mark,end_mark)                 \
+    (TOKEN_INIT((token),YAML_ALIAS_TOKEN,(start_mark),(end_mark)),              \
+     (token).data.alias.value = (token_value))
+
+#define ANCHOR_TOKEN_INIT(token,token_value,start_mark,end_mark)                \
+    (TOKEN_INIT((token),YAML_ANCHOR_TOKEN,(start_mark),(end_mark)),             \
+     (token).data.anchor.value = (token_value))
+
+#define TAG_TOKEN_INIT(token,token_handle,token_suffix,start_mark,end_mark)     \
+    (TOKEN_INIT((token),YAML_TAG_TOKEN,(start_mark),(end_mark)),                \
+     (token).data.tag.handle = (token_handle),                                  \
+     (token).data.tag.suffix = (token_suffix))
+
+#define SCALAR_TOKEN_INIT(token,token_value,token_length,token_style,start_mark,end_mark)   \
+    (TOKEN_INIT((token),YAML_SCALAR_TOKEN,(start_mark),(end_mark)),             \
+     (token).data.scalar.value = (token_value),                                 \
+     (token).data.scalar.length = (token_length),                               \
+     (token).data.scalar.style = (token_style))
+
+#define VERSION_DIRECTIVE_TOKEN_INIT(token,token_major,token_minor,start_mark,end_mark)     \
+    (TOKEN_INIT((token),YAML_VERSION_DIRECTIVE_TOKEN,(start_mark),(end_mark)),  \
+     (token).data.version_directive.major = (token_major),                      \
+     (token).data.version_directive.minor = (token_minor))
+
+#define TAG_DIRECTIVE_TOKEN_INIT(token,token_handle,token_prefix,start_mark,end_mark)       \
+    (TOKEN_INIT((token),YAML_TAG_DIRECTIVE_TOKEN,(start_mark),(end_mark)),      \
+     (token).data.tag_directive.handle = (token_handle),                        \
+     (token).data.tag_directive.prefix = (token_prefix))
+
+/*
+ * Event initializers.
+ */
+
+#define EVENT_INIT(event,event_type,event_start_mark,event_end_mark)            \
+    (memset(&(event), 0, sizeof(yaml_event_t)),                                 \
+     (event).type = (event_type),                                               \
+     (event).start_mark = (event_start_mark),                                   \
+     (event).end_mark = (event_end_mark))
+
+#define STREAM_START_EVENT_INIT(event,event_encoding,start_mark,end_mark)       \
+    (EVENT_INIT((event),YAML_STREAM_START_EVENT,(start_mark),(end_mark)),       \
+     (event).data.stream_start.encoding = (event_encoding))
+
+#define STREAM_END_EVENT_INIT(event,start_mark,end_mark)                        \
+    (EVENT_INIT((event),YAML_STREAM_END_EVENT,(start_mark),(end_mark)))
+
+#define DOCUMENT_START_EVENT_INIT(event,event_version_directive,                \
+        event_tag_directives_start,event_tag_directives_end,event_implicit,start_mark,end_mark) \
+    (EVENT_INIT((event),YAML_DOCUMENT_START_EVENT,(start_mark),(end_mark)),     \
+     (event).data.document_start.version_directive = (event_version_directive), \
+     (event).data.document_start.tag_directives.start = (event_tag_directives_start),   \
+     (event).data.document_start.tag_directives.end = (event_tag_directives_end),   \
+     (event).data.document_start.implicit = (event_implicit))
+
+#define DOCUMENT_END_EVENT_INIT(event,event_implicit,start_mark,end_mark)       \
+    (EVENT_INIT((event),YAML_DOCUMENT_END_EVENT,(start_mark),(end_mark)),       \
+     (event).data.document_end.implicit = (event_implicit))
+
+#define ALIAS_EVENT_INIT(event,event_anchor,start_mark,end_mark)                \
+    (EVENT_INIT((event),YAML_ALIAS_EVENT,(start_mark),(end_mark)),              \
+     (event).data.alias.anchor = (event_anchor))
+
+#define SCALAR_EVENT_INIT(event,event_anchor,event_tag,event_value,event_length,    \
+        event_plain_implicit, event_quoted_implicit,event_style,start_mark,end_mark)    \
+    (EVENT_INIT((event),YAML_SCALAR_EVENT,(start_mark),(end_mark)),             \
+     (event).data.scalar.anchor = (event_anchor),                               \
+     (event).data.scalar.tag = (event_tag),                                     \
+     (event).data.scalar.value = (event_value),                                 \
+     (event).data.scalar.length = (event_length),                               \
+     (event).data.scalar.plain_implicit = (event_plain_implicit),               \
+     (event).data.scalar.quoted_implicit = (event_quoted_implicit),             \
+     (event).data.scalar.style = (event_style))
+
+#define SEQUENCE_START_EVENT_INIT(event,event_anchor,event_tag,                 \
+        event_implicit,event_style,start_mark,end_mark)                         \
+    (EVENT_INIT((event),YAML_SEQUENCE_START_EVENT,(start_mark),(end_mark)),     \
+     (event).data.sequence_start.anchor = (event_anchor),                       \
+     (event).data.sequence_start.tag = (event_tag),                             \
+     (event).data.sequence_start.implicit = (event_implicit),                   \
+     (event).data.sequence_start.style = (event_style))
+
+#define SEQUENCE_END_EVENT_INIT(event,start_mark,end_mark)                      \
+    (EVENT_INIT((event),YAML_SEQUENCE_END_EVENT,(start_mark),(end_mark)))
+
+#define MAPPING_START_EVENT_INIT(event,event_anchor,event_tag,                  \
+        event_implicit,event_style,start_mark,end_mark)                         \
+    (EVENT_INIT((event),YAML_MAPPING_START_EVENT,(start_mark),(end_mark)),      \
+     (event).data.mapping_start.anchor = (event_anchor),                        \
+     (event).data.mapping_start.tag = (event_tag),                              \
+     (event).data.mapping_start.implicit = (event_implicit),                    \
+     (event).data.mapping_start.style = (event_style))
+
+#define MAPPING_END_EVENT_INIT(event,start_mark,end_mark)                       \
+    (EVENT_INIT((event),YAML_MAPPING_END_EVENT,(start_mark),(end_mark)))
+
+/*
+ * Document initializer.
+ */
+
+#define DOCUMENT_INIT(document,document_nodes_start,document_nodes_end,         \
+        document_version_directive,document_tag_directives_start,               \
+        document_tag_directives_end,document_start_implicit,                    \
+        document_end_implicit,document_start_mark,document_end_mark)            \
+    (memset(&(document), 0, sizeof(yaml_document_t)),                           \
+     (document).nodes.start = (document_nodes_start),                           \
+     (document).nodes.end = (document_nodes_end),                               \
+     (document).nodes.top = (document_nodes_start),                             \
+     (document).version_directive = (document_version_directive),               \
+     (document).tag_directives.start = (document_tag_directives_start),         \
+     (document).tag_directives.end = (document_tag_directives_end),             \
+     (document).start_implicit = (document_start_implicit),                     \
+     (document).end_implicit = (document_end_implicit),                         \
+     (document).start_mark = (document_start_mark),                             \
+     (document).end_mark = (document_end_mark))
+
+/*
+ * Node initializers.
+ */
+
+#define NODE_INIT(node,node_type,node_tag,node_start_mark,node_end_mark)        \
+    (memset(&(node), 0, sizeof(yaml_node_t)),                                   \
+     (node).type = (node_type),                                                 \
+     (node).tag = (node_tag),                                                   \
+     (node).start_mark = (node_start_mark),                                     \
+     (node).end_mark = (node_end_mark))
+
+#define SCALAR_NODE_INIT(node,node_tag,node_value,node_length,                  \
+        node_style,start_mark,end_mark)                                         \
+    (NODE_INIT((node),YAML_SCALAR_NODE,(node_tag),(start_mark),(end_mark)),     \
+     (node).data.scalar.value = (node_value),                                   \
+     (node).data.scalar.length = (node_length),                                 \
+     (node).data.scalar.style = (node_style))
+
+#define SEQUENCE_NODE_INIT(node,node_tag,node_items_start,node_items_end,       \
+        node_style,start_mark,end_mark)                                         \
+    (NODE_INIT((node),YAML_SEQUENCE_NODE,(node_tag),(start_mark),(end_mark)),   \
+     (node).data.sequence.items.start = (node_items_start),                     \
+     (node).data.sequence.items.end = (node_items_end),                         \
+     (node).data.sequence.items.top = (node_items_start),                       \
+     (node).data.sequence.style = (node_style))
+
+#define MAPPING_NODE_INIT(node,node_tag,node_pairs_start,node_pairs_end,        \
+        node_style,start_mark,end_mark)                                         \
+    (NODE_INIT((node),YAML_MAPPING_NODE,(node_tag),(start_mark),(end_mark)),    \
+     (node).data.mapping.pairs.start = (node_pairs_start),                      \
+     (node).data.mapping.pairs.end = (node_pairs_end),                          \
+     (node).data.mapping.pairs.top = (node_pairs_start),                        \
+     (node).data.mapping.style = (node_style))
+
 /* Strict C compiler warning helpers */
 
 #if defined(__clang__) || defined(__GNUC__)
diff --git a/contrib/libs/yaml/ya.make b/contrib/libs/yaml/ya.make
index 04261e8373..547a2b2a63 100644
--- a/contrib/libs/yaml/ya.make
+++ b/contrib/libs/yaml/ya.make
@@ -1,7 +1,7 @@
 # Generated by devtools/yamaker from nixpkgs 21.11.
 
-LIBRARY() 
- 
+LIBRARY()
+
 OWNER(
     borman
     g:cpp-contrib
@@ -15,28 +15,28 @@ LICENSE(MIT)
 
 LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
 
-ADDINCL( 
-    GLOBAL contrib/libs/yaml/include 
+ADDINCL(
+    GLOBAL contrib/libs/yaml/include
     contrib/libs/yaml/src
-) 
- 
-NO_COMPILER_WARNINGS() 
- 
+)
+
+NO_COMPILER_WARNINGS()
+
 NO_RUNTIME()
 
 CFLAGS(
     -DHAVE_CONFIG_H
 )
 
-SRCS( 
-    src/api.c 
-    src/dumper.c 
-    src/emitter.c 
-    src/loader.c 
-    src/parser.c 
-    src/reader.c 
-    src/scanner.c 
-    src/writer.c 
-) 
- 
-END() 
+SRCS(
+    src/api.c
+    src/dumper.c
+    src/emitter.c
+    src/loader.c
+    src/parser.c
+    src/reader.c
+    src/scanner.c
+    src/writer.c
+)
+
+END()
diff --git a/contrib/libs/zlib/ya.make b/contrib/libs/zlib/ya.make
index 5c9e47a1e3..ced6573475 100644
--- a/contrib/libs/zlib/ya.make
+++ b/contrib/libs/zlib/ya.make
@@ -16,7 +16,7 @@ OPENSOURCE_EXPORT_REPLACEMENT(
 LICENSE(Zlib)
 
 LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
- 
+
 ADDINCL(
     GLOBAL contrib/libs/zlib/include
 )