Restoring authorship annotation for <finder@yandex-team.ru>. Commit 2 of 2.

17 files changed, 740 insertions, 740 deletions

diff --git a/library/cpp/binsaver/bin_saver.h b/library/cpp/binsaver/bin_saver.h
index c346e48ea0..412424889f 100644
--- a/library/cpp/binsaver/bin_saver.h
+++ b/library/cpp/binsaver/bin_saver.h
@@ -13,7 +13,7 @@
 #include <util/generic/variant.h>
 #include <util/generic/ylimits.h>
 #include <util/memory/blob.h>
-#include <util/digest/murmur.h> 
+#include <util/digest/murmur.h>
 
 #include <array>
 #include <bitset>
@@ -186,25 +186,25 @@ private:
 
     template <class T>
     void DoAnySet(T& data) {
-        if (IsReading()) { 
-            data.clear(); 
+        if (IsReading()) {
+            data.clear();
             TStoredSize nSize;
             Add(2, &nSize);
             for (TStoredSize i = 0; i < nSize; ++i) {
                 typename T::value_type member;
-                Add(1, &member); 
-                data.insert(member); 
-            } 
-        } else { 
+                Add(1, &member);
+                data.insert(member);
+            }
+        } else {
             TStoredSize nSize = data.size();
             CheckOverflow(nSize, data.size());
             Add(2, &nSize);
             for (const auto& elem : data) {
                 auto member = elem;
-                Add(1, &member); 
-            } 
-        } 
-    } 
+                Add(1, &member);
+            }
+        }
+    }
 
     // 2D array
     template <class T>
@@ -240,19 +240,19 @@ private:
             TStoredSize nCount = data.size();
             CheckOverflow(nCount, data.size());
             File.Write(&nCount, sizeof(TStoredSize));
-            File.Write(data.c_str(), nCount * elemSize); 
+            File.Write(data.c_str(), nCount * elemSize);
         }
     }
     void DataChunkString(std::string& data) {
-        DataChunkStr(data, sizeof(char)); 
-    } 
+        DataChunkStr(data, sizeof(char));
+    }
     void DataChunkStroka(TString& data) {
         DataChunkStr(data, sizeof(TString::char_type));
-    } 
+    }
     void DataChunkWtroka(TUtf16String& data) {
         DataChunkStr(data, sizeof(wchar16));
-    } 
- 
+    }
+
     void DataChunk(void* pData, i64 nSize) {
         i64 chunkSize = 1 << 30;
         for (i64 offset = 0; offset < nSize; offset += chunkSize) {
@@ -302,13 +302,13 @@ public:
         return 0;
     }
     int Add(const chunk_id, TString* pStr) {
-        DataChunkStroka(*pStr); 
+        DataChunkStroka(*pStr);
         return 0;
-    } 
+    }
     int Add(const chunk_id, TUtf16String* pStr) {
-        DataChunkWtroka(*pStr); 
+        DataChunkWtroka(*pStr);
         return 0;
-    } 
+    }
     int Add(const chunk_id, TBlob* blob) {
         if (bRead) {
             ui64 size = 0;
@@ -367,7 +367,7 @@ public:
     int Add(const chunk_id, THashSet<T1, T2, T3, T4>* pHash) {
         DoAnySet(*pHash);
         return 0;
-    } 
+    }
 
     template <class T1>
     int Add(const chunk_id, TArray2D<T1>* pArr) {
@@ -524,17 +524,17 @@ public:
         return 0;
     }
 
-    template <typename TOne> 
+    template <typename TOne>
     void AddMulti(TOne& one) {
-        Add(0, &one); 
-    } 
- 
+        Add(0, &one);
+    }
+
     template <typename THead, typename... TTail>
     void AddMulti(THead& head, TTail&... tail) {
-        Add(0, &head); 
+        Add(0, &head);
         AddMulti(tail...);
-    } 
- 
+    }
+
     template <class T, typename = decltype(std::declval<T&>() & std::declval<IBinSaver&>())>
     static bool HasNonTrivialSerializer(ui32) {
         return true;
@@ -580,8 +580,8 @@ struct TRegisterSaveLoadType {
 
 #define Y_BINSAVER_REGISTER(name) \
     BASIC_REGISTER_CLASS(name)    \
-    static TRegisterSaveLoadType<name> init##name(MurmurHash<int>(#name, sizeof(#name))); 
- 
+    static TRegisterSaveLoadType<name> init##name(MurmurHash<int>(#name, sizeof(#name)));
+
 #define REGISTER_SAVELOAD_CLASS(N, name) \
     BASIC_REGISTER_CLASS(name)           \
     static TRegisterSaveLoadType<name> init##name##N(N);
@@ -618,7 +618,7 @@ struct TRegisterSaveLoadType {
 
 #define REGISTER_SAVELOAD_CLASS_NS_PREF(N, cls, ns, pref) \
     REGISTER_SAVELOAD_CLASS_NAME(N, ns ::cls, _##pref##_##cls)
- 
+
 #define SAVELOAD(...)             \
     int operator&(IBinSaver& f) { \
         f.AddMulti(__VA_ARGS__);  \
diff --git a/library/cpp/binsaver/class_factory.h b/library/cpp/binsaver/class_factory.h
index 90288612e1..e83512331b 100644
--- a/library/cpp/binsaver/class_factory.h
+++ b/library/cpp/binsaver/class_factory.h
@@ -93,7 +93,7 @@ void TClassFactory<T>::RegisterTypeBase(int nTypeID, newFunc func, VFT vft) {
     CTypeIndexHash::iterator typeIndexIt = typeIndex.find(vft);
     if (typeIndexIt != typeIndex.end() && nTypeID != typeIndexIt->second) {
         fprintf(stderr, "IBinSaver: class (Type ID 0x%08X) has been already registered (Type ID 0x%08X)\n", nTypeID, typeIndexIt->second);
-        abort(); 
+        abort();
     }
     typeIndex[vft] = nTypeID;
     typeInfo[nTypeID] = func;
diff --git a/library/cpp/binsaver/util_stream_io.h b/library/cpp/binsaver/util_stream_io.h
index b486659cb8..d65d630b93 100644
--- a/library/cpp/binsaver/util_stream_io.h
+++ b/library/cpp/binsaver/util_stream_io.h
@@ -1,21 +1,21 @@
-#pragma once 
+#pragma once
 
 #include "bin_saver.h"
- 
-#include <util/stream/input.h> 
-#include <util/stream/output.h> 
+
+#include <util/stream/input.h>
+#include <util/stream/output.h>
 #include <util/stream/file.h>
- 
+
 class TYaStreamInput: public IBinaryStream {
     IInputStream& Stream;
 
     int WriteImpl(const void*, int) override {
         Y_ASSERT(0);
-        return 0; 
-    } 
+        return 0;
+    }
     int ReadImpl(void* userBuffer, int size) override {
         return (int)Stream.Read(userBuffer, (size_t)size);
-    } 
+    }
     bool IsValid() const override {
         return true;
     }
@@ -23,22 +23,22 @@ class TYaStreamInput: public IBinaryStream {
         return false;
     }
 
-public: 
+public:
     TYaStreamInput(IInputStream& stream)
         : Stream(stream)
     {
-    } 
-}; 
- 
+    }
+};
+
 template <class T>
 inline void SerializeFromStream(IInputStream& stream, T& c) {
-    TYaStreamInput f(stream); 
-    { 
-        IBinSaver bs(f, true); 
-        bs.Add(1, &c); 
-    } 
-} 
- 
+    TYaStreamInput f(stream);
+    {
+        IBinSaver bs(f, true);
+        bs.Add(1, &c);
+    }
+}
+
 template <class T>
 inline void SerializeFromFile(const TString& fileName, T& c) {
     TIFStream in(fileName);
@@ -50,12 +50,12 @@ class TYaStreamOutput: public IBinaryStream {
 
     int WriteImpl(const void* what, int size) override {
         Stream.Write(what, (size_t)size);
-        return size; 
-    } 
+        return size;
+    }
     int ReadImpl(void*, int) override {
         Y_ASSERT(0);
-        return 0; 
-    } 
+        return 0;
+    }
     bool IsValid() const override {
         return true;
     }
@@ -63,21 +63,21 @@ class TYaStreamOutput: public IBinaryStream {
         return false;
     }
 
-public: 
+public:
     TYaStreamOutput(IOutputStream& stream)
         : Stream(stream)
     {
-    } 
-}; 
- 
+    }
+};
+
 template <class T>
 inline void SerializeToArcadiaStream(IOutputStream& stream, T& c) {
-    TYaStreamOutput f(stream); 
-    { 
-        IBinSaver bs(f, false); 
-        bs.Add(1, &c); 
-    } 
-} 
+    TYaStreamOutput f(stream);
+    {
+        IBinSaver bs(f, false);
+        bs.Add(1, &c);
+    }
+}
 
 template <class T>
 inline void SerializeToFile(const TString& fileName, T& c) {
diff --git a/library/cpp/containers/2d_array/2d_array.h b/library/cpp/containers/2d_array/2d_array.h
index d5ca68d8f0..9e24650637 100644
--- a/library/cpp/containers/2d_array/2d_array.h
+++ b/library/cpp/containers/2d_array/2d_array.h
@@ -1,8 +1,8 @@
-#pragma once 
+#pragma once
 
 #include <util/system/yassert.h>
 #include <util/generic/algorithm.h>
- 
+
 #ifdef _DEBUG
 template <class T>
 struct TBoundCheck {
@@ -16,10 +16,10 @@ struct TBoundCheck {
         Y_ASSERT(i >= 0 && i < Size);
         return Data[i];
     }
-}; 
+};
 #endif
- 
-template <class T> 
+
+template <class T>
 class TArray2D {
 private:
     typedef T* PT;
@@ -47,7 +47,7 @@ private:
             PData[i] = Data + i * XSize;
     }
 
-public: 
+public:
     TArray2D(size_t xsize = 1, size_t ysize = 1) {
         XSize = xsize;
         YSize = ysize;
@@ -75,17 +75,17 @@ public:
     void Clear() {
         SetSizes(1, 1);
     }
-#ifdef _DEBUG 
+#ifdef _DEBUG
     TBoundCheck<T> operator[](size_t i) const {
         Y_ASSERT(i < YSize);
         return TBoundCheck<T>(PData[i], XSize);
     }
-#else 
+#else
     T* operator[](size_t i) const {
         Y_ASSERT(i < YSize);
         return PData[i];
     }
-#endif 
+#endif
     size_t GetXSize() const {
         return XSize;
     }
@@ -105,20 +105,20 @@ public:
         std::swap(XSize, a.XSize);
         std::swap(YSize, a.YSize);
     }
-}; 
- 
+};
+
 template <class T>
 inline bool operator==(const TArray2D<T>& a, const TArray2D<T>& b) {
-    if (a.GetXSize() != b.GetXSize() || a.GetYSize() != b.GetYSize()) 
-        return false; 
+    if (a.GetXSize() != b.GetXSize() || a.GetYSize() != b.GetYSize())
+        return false;
     for (size_t y = 0; y < a.GetYSize(); ++y) {
         for (size_t x = 0; x < a.GetXSize(); ++x)
-            if (a[y][x] != b[y][x]) 
-                return false; 
-    } 
-    return true; 
-} 
- 
+            if (a[y][x] != b[y][x])
+                return false;
+    }
+    return true;
+}
+
 template <class T>
 inline bool operator!=(const TArray2D<T>& a, const TArray2D<T>& b) {
     return !(a == b);
diff --git a/library/cpp/containers/comptrie/comptrie_ut.cpp b/library/cpp/containers/comptrie/comptrie_ut.cpp
index 0b95128191..74bee09b5d 100644
--- a/library/cpp/containers/comptrie/comptrie_ut.cpp
+++ b/library/cpp/containers/comptrie/comptrie_ut.cpp
@@ -70,9 +70,9 @@ private:
     UNIT_TEST(TestUnique);
     UNIT_TEST(TestAddRetValue);
     UNIT_TEST(TestClear);
- 
+
     UNIT_TEST(TestIterateEmptyKey);
- 
+
     UNIT_TEST(TestTrieSet);
 
     UNIT_TEST(TestTrieForVectorInt64);
@@ -207,8 +207,8 @@ public:
     void TestUnique();
     void TestAddRetValue();
     void TestClear();
- 
-    void TestIterateEmptyKey(); 
+
+    void TestIterateEmptyKey();
 
     void TestTrieSet();
 
@@ -1042,24 +1042,24 @@ public:
         return RandomNumber<std::make_unsigned_t<T>>();
     }
 };
- 
-void TCompactTrieTest::TestIterateEmptyKey() { 
-    TBuffer trieBuffer; 
-    { 
-        TCompactTrieBuilder<char, ui32> builder; 
-        UNIT_ASSERT(builder.Add("", 1)); 
-        TBufferStream trieBufferO(trieBuffer); 
-        builder.Save(trieBufferO); 
-    } 
-    TCompactTrie<char, ui32> trie(TBlob::FromBuffer(trieBuffer)); 
-    ui32 val; 
-    UNIT_ASSERT(trie.Find("", &val)); 
-    UNIT_ASSERT(val == 1); 
-    TCompactTrie<char, ui32>::TConstIterator it = trie.Begin(); 
-    UNIT_ASSERT(it.GetKey().empty()); 
-    UNIT_ASSERT(it.GetValue() == 1); 
-} 
- 
+
+void TCompactTrieTest::TestIterateEmptyKey() {
+    TBuffer trieBuffer;
+    {
+        TCompactTrieBuilder<char, ui32> builder;
+        UNIT_ASSERT(builder.Add("", 1));
+        TBufferStream trieBufferO(trieBuffer);
+        builder.Save(trieBufferO);
+    }
+    TCompactTrie<char, ui32> trie(TBlob::FromBuffer(trieBuffer));
+    ui32 val;
+    UNIT_ASSERT(trie.Find("", &val));
+    UNIT_ASSERT(val == 1);
+    TCompactTrie<char, ui32>::TConstIterator it = trie.Begin();
+    UNIT_ASSERT(it.GetKey().empty());
+    UNIT_ASSERT(it.GetValue() == 1);
+}
+
 void TCompactTrieTest::TestTrieSet() {
     TBuffer buffer;
     {
diff --git a/library/cpp/json/easy_parse/json_easy_parser.cpp b/library/cpp/json/easy_parse/json_easy_parser.cpp
index 95eb59c744..3c781f544b 100644
--- a/library/cpp/json/easy_parse/json_easy_parser.cpp
+++ b/library/cpp/json/easy_parse/json_easy_parser.cpp
@@ -1,14 +1,14 @@
-#include "json_easy_parser.h" 
+#include "json_easy_parser.h"
 #include <library/cpp/json/json_reader.h>
 #include <util/string/cast.h>
-#include <util/string/split.h> 
-#include <util/string/strip.h> 
- 
-namespace NJson { 
+#include <util/string/split.h>
+#include <util/string/strip.h>
+
+namespace NJson {
     static TString MAP_IDENTIFIER = "{}";
     static TString ARRAY_IDENTIFIER = "[]";
     static TString ANY_IDENTIFIER = "*";
- 
+
     static void ParsePath(TString path, TVector<TPathElem>* res) {
         TVector<const char*> parts;
         Split(path.begin(), '/', &parts);
@@ -26,24 +26,24 @@ namespace NJson {
                         arrayCounter = -1;
                     }
                     res->push_back(TPathElem(arrayCounter));
-                } 
-            } 
-        } 
-    } 
- 
+                }
+            }
+        }
+    }
+
     void TJsonParser::AddField(const TString& path, bool nonEmpty) {
         Fields.emplace_back();
         Fields.back().NonEmpty = nonEmpty;
         ParsePath(path, &Fields.back().Path);
     }
- 
+
     TString TJsonParser::ConvertToTabDelimited(const TString& json) const {
         TStringInput in(json);
         TStringStream out;
         ConvertToTabDelimited(in, out);
         return out.Str();
     }
- 
+
     class TRewriteJsonImpl: public NJson::TJsonCallbacks {
         const TJsonParser& Parent;
         TVector<TString> FieldValues;
@@ -51,7 +51,7 @@ namespace NJson {
         bool ShouldUpdateOnArrayChange;
         int CurrentFieldIdx;
         bool HasFormatError;
- 
+
     private:
         static bool PathElementMatch(const TPathElem& templ, const TPathElem& real) {
             if (templ.Type != real.Type)
@@ -62,31 +62,31 @@ namespace NJson {
                 return templ.Key == ANY_IDENTIFIER || templ.Key == real.Key;
             return true;
         }
- 
+
         bool CheckFilter(const TVector<TPathElem>& path) const {
             if (Stack.size() < path.size())
-                return false; 
+                return false;
             for (size_t n = 0; n < path.size(); ++n) {
                 if (!PathElementMatch(path[n], Stack[n]))
                     return false;
             }
             return true;
-        } 
- 
+        }
+
         void UpdateRule() {
             for (size_t n = 0; n < Parent.Fields.size(); ++n) {
                 if (FieldValues[n].empty() && CheckFilter(Parent.Fields[n].Path)) {
                     CurrentFieldIdx = n;
                     return;
                 }
-            } 
+            }
             CurrentFieldIdx = -1;
-        } 
- 
+        }
+
         void Pop() {
             Stack.pop_back();
         }
- 
+
         void IncreaseArrayCounter() {
             if (!Stack.empty() && Stack.back().Type == NImpl::ARRAY) {
                 ++Stack.back().ArrayCounter;
@@ -100,11 +100,11 @@ namespace NJson {
             IncreaseArrayCounter();
             if (CurrentFieldIdx >= 0) {
                 FieldValues[CurrentFieldIdx] = ToString(val);
-                UpdateRule(); 
+                UpdateRule();
             }
             return true;
-        } 
- 
+        }
+
     public:
         TRewriteJsonImpl(const TJsonParser& parent)
             : Parent(parent)
@@ -117,8 +117,8 @@ namespace NJson {
                 if (!Parent.Fields[n].Path.empty() && Parent.Fields[n].Path.back().Type == NImpl::ARRAY)
                     ShouldUpdateOnArrayChange = true;
             }
-        } 
- 
+        }
+
         bool OnOpenMap() override {
             IncreaseArrayCounter();
             Stack.push_back(TPathElem(NImpl::MAP));
@@ -127,8 +127,8 @@ namespace NJson {
             else
                 UpdateRule();
             return true;
-        } 
- 
+        }
+
         bool OnOpenArray() override {
             IncreaseArrayCounter();
             Stack.push_back(TPathElem(-1));
@@ -144,17 +144,17 @@ namespace NJson {
                 Pop();
             if (!Stack.empty())
                 Pop();
-            UpdateRule(); 
+            UpdateRule();
             return true;
         }
- 
+
         bool OnCloseArray() override {
             if (!Stack.empty())
                 Pop();
-            UpdateRule(); 
+            UpdateRule();
             return true;
         }
- 
+
         bool OnMapKey(const TStringBuf& key) override {
             if (!Stack.empty() && Stack.back().Type == NImpl::MAP_KEY) {
                 Pop();
@@ -167,23 +167,23 @@ namespace NJson {
                 UpdateRule();
             return true;
         }
- 
+
         bool OnBoolean(bool b) override {
             return OnValue(b);
         }
- 
+
         bool OnInteger(long long i) override {
             return OnValue(i);
-        } 
- 
+        }
+
         bool OnDouble(double f) override {
             return OnValue(f);
         }
- 
+
         bool OnString(const TStringBuf& str) override {
             return OnValue(str);
         }
- 
+
         bool IsOK() const {
             if (HasFormatError)
                 return false;
@@ -192,17 +192,17 @@ namespace NJson {
                     return false;
             return true;
         }
- 
+
         void WriteTo(IOutputStream& out) const {
             for (size_t n = 0; n < FieldValues.size(); ++n)
                 out << "\t" << FieldValues[n];
         }
- 
+
         void WriteTo(TVector<TString>* res) const {
             *res = FieldValues;
         }
     };
- 
+
     void TJsonParser::ConvertToTabDelimited(IInputStream& in, IOutputStream& out) const {
         TRewriteJsonImpl impl(*this);
         ReadJson(&in, &impl);
@@ -211,8 +211,8 @@ namespace NJson {
             impl.WriteTo(out);
             out.Flush();
         }
-    } 
- 
+    }
+
     bool TJsonParser::Parse(const TString& json, TVector<TString>* res) const {
         TRewriteJsonImpl impl(*this);
         TStringInput in(json);
@@ -222,8 +222,8 @@ namespace NJson {
             return true;
         } else
             return false;
-    } 
- 
+    }
+
     //struct TTestMe {
     //    TTestMe() {
     //        TJsonParser worker;
@@ -232,5 +232,5 @@ namespace NJson {
     //        TString ret2 = worker.ConvertToTabDelimited(" [1, 2, 3, 4, 5] ");
     //    }
     //} testMe;
- 
-} 
+
+}
diff --git a/library/cpp/json/easy_parse/json_easy_parser.h b/library/cpp/json/easy_parse/json_easy_parser.h
index 64c483aaba..59d7791ab1 100644
--- a/library/cpp/json/easy_parse/json_easy_parser.h
+++ b/library/cpp/json/easy_parse/json_easy_parser.h
@@ -1,12 +1,12 @@
-#pragma once 
+#pragma once
 
 #include <util/generic/string.h>
-#include <util/generic/vector.h> 
-#include <util/stream/input.h> 
-#include <util/stream/output.h> 
-#include "json_easy_parser_impl.h" 
- 
-namespace NJson { 
+#include <util/generic/vector.h>
+#include <util/stream/input.h>
+#include <util/stream/output.h>
+#include "json_easy_parser_impl.h"
+
+namespace NJson {
     /* This class filters out nodes from a source JSON by a xpath-style description. It represent these nodes as a tab-delimited string (or a vector).
      * It is useful if you need to parse a data which comes into JSON in a known and fixed format.
      * Fields are set as a list of keys separated by slash, for example:
@@ -21,26 +21,26 @@ namespace NJson {
      * NB! Library can not extract values of not a simple type (namely it doesn't support the case when a result is a vocabulary or an array) from JSON.
      * If you expect such a case, please check json_value.h.
      */
- 
-    class TJsonParser { 
+
+    class TJsonParser {
         TString Prefix;
- 
-        struct TField { 
+
+        struct TField {
             TVector<TPathElem> Path;
-            bool NonEmpty; 
-        }; 
+            bool NonEmpty;
+        };
         TVector<TField> Fields;
- 
-        friend class TRewriteJsonImpl; 
- 
+
+        friend class TRewriteJsonImpl;
+
         void ConvertToTabDelimited(IInputStream& in, IOutputStream& out) const;
 
-    public: 
+    public:
         void SetPrefix(const TString& prefix) {
-            Prefix = prefix; 
-        } 
+            Prefix = prefix;
+        }
         void AddField(const TString& path, bool mustExist);
         TString ConvertToTabDelimited(const TString& json) const;
         bool Parse(const TString& json, TVector<TString>* res) const;
-    }; 
-} 
+    };
+}
diff --git a/library/cpp/json/easy_parse/json_easy_parser_impl.h b/library/cpp/json/easy_parse/json_easy_parser_impl.h
index 11941fb6d0..ec55d838b3 100644
--- a/library/cpp/json/easy_parse/json_easy_parser_impl.h
+++ b/library/cpp/json/easy_parse/json_easy_parser_impl.h
@@ -1,40 +1,40 @@
-#pragma once 
- 
+#pragma once
+
 #include <util/generic/string.h>
 
-namespace NJson { 
+namespace NJson {
     namespace NImpl {
-        enum EType { 
-            ARRAY, 
-            MAP, 
-            MAP_KEY 
-        }; 
+        enum EType {
+            ARRAY,
+            MAP,
+            MAP_KEY
+        };
     }
     template <class TStringType>
     struct TPathElemImpl {
         NImpl::EType Type;
         TStringType Key;
-        int ArrayCounter; 
- 
+        int ArrayCounter;
+
         TPathElemImpl(NImpl::EType type)
             : Type(type)
             , ArrayCounter()
         {
-        } 
- 
+        }
+
         TPathElemImpl(const TStringType& key)
             : Type(NImpl::MAP_KEY)
             , Key(key)
             , ArrayCounter()
         {
-        } 
- 
-        TPathElemImpl(int arrayCounter) 
+        }
+
+        TPathElemImpl(int arrayCounter)
             : Type(NImpl::ARRAY)
             , ArrayCounter(arrayCounter)
         {
-        } 
-    }; 
- 
+        }
+    };
+
     typedef TPathElemImpl<TString> TPathElem;
-} 
+}
diff --git a/library/cpp/json/easy_parse/ya.make b/library/cpp/json/easy_parse/ya.make
index d84feb7ff6..2304c542f2 100644
--- a/library/cpp/json/easy_parse/ya.make
+++ b/library/cpp/json/easy_parse/ya.make
@@ -1,13 +1,13 @@
-OWNER(finder) 
- 
-LIBRARY() 
- 
+OWNER(finder)
+
+LIBRARY()
+
 SRCS(
-    json_easy_parser.cpp 
-) 
- 
-PEERDIR( 
+    json_easy_parser.cpp
+)
+
+PEERDIR(
     library/cpp/json
-) 
- 
-END() 
+)
+
+END()
diff --git a/library/cpp/json/writer/json.cpp b/library/cpp/json/writer/json.cpp
index 7425b3b4bd..02370c2d79 100644
--- a/library/cpp/json/writer/json.cpp
+++ b/library/cpp/json/writer/json.cpp
@@ -2,7 +2,7 @@
 
 #include <library/cpp/json/json_value.h>
 
-#include <util/string/cast.h> 
+#include <util/string/cast.h>
 #include <util/string/strspn.h>
 #include <util/generic/algorithm.h>
 #include <util/generic/ymath.h>
@@ -263,7 +263,7 @@ namespace NJsonWriter {
         UnsafeWriteValue(buf, len);
         return TValueContext(*this);
     }
- 
+
     TValueContext TBuf::WriteFloat(float f, EFloatToStringMode mode, int ndigits) {
         return WriteFloatImpl(f, mode, ndigits);
     }
diff --git a/library/cpp/packers/region_packer.h b/library/cpp/packers/region_packer.h
index 682b55db7e..2c661cb5bc 100644
--- a/library/cpp/packers/region_packer.h
+++ b/library/cpp/packers/region_packer.h
@@ -1,4 +1,4 @@
-#pragma once 
+#pragma once
 
 #include "packers.h"
 
@@ -7,36 +7,36 @@
 // Stores an array of PODs in the trie (copying them with memcpy).
 // Byte order and alignment are your problem.
 
-template <class TRecord> 
-class TRegionPacker { 
-public: 
+template <class TRecord>
+class TRegionPacker {
+public:
     typedef TArrayRef<TRecord> TRecords;
- 
+
     void UnpackLeaf(const char* p, TRecords& result) const {
-        size_t len; 
+        size_t len;
         NPackers::TIntegralPacker<size_t>().UnpackLeaf(p, len);
         size_t start = NPackers::TIntegralPacker<size_t>().SkipLeaf(p);
-        result = TRecords((TRecord*)(p + start), len); 
-    } 
- 
-    void PackLeaf(char* buf, const TRecords& data, size_t computedSize) const { 
+        result = TRecords((TRecord*)(p + start), len);
+    }
+
+    void PackLeaf(char* buf, const TRecords& data, size_t computedSize) const {
         size_t len = data.size();
-        size_t lenChar = len * sizeof(TRecord); 
-        size_t start = computedSize - lenChar; 
+        size_t lenChar = len * sizeof(TRecord);
+        size_t start = computedSize - lenChar;
         NPackers::TIntegralPacker<size_t>().PackLeaf(buf, len, NPackers::TIntegralPacker<size_t>().MeasureLeaf(len));
         memcpy(buf + start, data.data(), lenChar);
-    } 
- 
-    size_t MeasureLeaf(const TRecords& data) const { 
+    }
+
+    size_t MeasureLeaf(const TRecords& data) const {
         size_t len = data.size();
         return NPackers::TIntegralPacker<size_t>().MeasureLeaf(len) + len * sizeof(TRecord);
-    } 
- 
+    }
+
     size_t SkipLeaf(const char* p) const {
         size_t result = NPackers::TIntegralPacker<size_t>().SkipLeaf(p);
-        size_t len; 
+        size_t len;
         NPackers::TIntegralPacker<size_t>().UnpackLeaf(p, len);
-        result += len * sizeof(TRecord); 
-        return result; 
-    } 
-}; 
+        result += len * sizeof(TRecord);
+        return result;
+    }
+};
diff --git a/library/cpp/xml/document/libxml-guards.h b/library/cpp/xml/document/libxml-guards.h
index 4028c53e9f..4188cecff1 100644
--- a/library/cpp/xml/document/libxml-guards.h
+++ b/library/cpp/xml/document/libxml-guards.h
@@ -1,50 +1,50 @@
-#pragma once 
+#pragma once
 
 #include <library/cpp/xml/init/ptr.h>
-#include <util/generic/ptr.h> 
+#include <util/generic/ptr.h>
 #include <libxml/xmlstring.h>
 #include <libxml/tree.h>
 #include <libxml/xpath.h>
 #include <libxml/uri.h>
 #include <libxml/xmlsave.h>
- 
-namespace NXml { 
-    namespace NDetail { 
-        struct TSignedCharPtrTraits { 
-            static void Destroy(char* handle) { 
-                xmlFree(handle); 
-            } 
-        }; 
- 
-        struct TCharPtrTraits { 
-            static void Destroy(xmlChar* handle) { 
-                xmlFree(handle); 
-            } 
-        }; 
- 
-        struct TOutputBufferPtrTraits { 
-            static void Destroy(xmlOutputBufferPtr handle) { 
-                xmlOutputBufferClose(handle); 
-            } 
-        }; 
- 
+
+namespace NXml {
+    namespace NDetail {
+        struct TSignedCharPtrTraits {
+            static void Destroy(char* handle) {
+                xmlFree(handle);
+            }
+        };
+
+        struct TCharPtrTraits {
+            static void Destroy(xmlChar* handle) {
+                xmlFree(handle);
+            }
+        };
+
+        struct TOutputBufferPtrTraits {
+            static void Destroy(xmlOutputBufferPtr handle) {
+                xmlOutputBufferClose(handle);
+            }
+        };
+
         struct TSaveCtxtPtrTraits {
             static void Destroy(xmlSaveCtxtPtr handle) {
                 xmlSaveClose(handle);
             }
         };
 
-    } 
- 
+    }
+
     typedef TxmlXPathContextPtr TXPathContextPtr;
     typedef TxmlXPathObjectPtr TXPathObjectPtr;
-    typedef TAutoPtr<char, NDetail::TSignedCharPtrTraits> TSignedCharPtr; 
-    typedef TAutoPtr<xmlChar, NDetail::TCharPtrTraits> TCharPtr; 
+    typedef TAutoPtr<char, NDetail::TSignedCharPtrTraits> TSignedCharPtr;
+    typedef TAutoPtr<xmlChar, NDetail::TCharPtrTraits> TCharPtr;
     typedef TxmlDocHolder TDocHolder;
     typedef TxmlURIPtr TURIPtr;
     typedef TxmlNodePtr TNodePtr;
-    typedef TAutoPtr<xmlOutputBuffer, NDetail::TOutputBufferPtrTraits> TOutputBufferPtr; 
+    typedef TAutoPtr<xmlOutputBuffer, NDetail::TOutputBufferPtrTraits> TOutputBufferPtr;
     typedef TxmlParserCtxtPtr TParserCtxtPtr;
     typedef TAutoPtr<xmlSaveCtxt, NDetail::TSaveCtxtPtrTraits> TSaveCtxtPtr;
- 
+
 }
diff --git a/library/cpp/xml/document/node-attr.h b/library/cpp/xml/document/node-attr.h
index 1c4082e6fe..6e74403943 100644
--- a/library/cpp/xml/document/node-attr.h
+++ b/library/cpp/xml/document/node-attr.h
@@ -1,13 +1,13 @@
-#pragma once 
- 
+#pragma once
+
 #include "xml-document-decl.h"
 #include "libxml-guards.h"
-#include <util/stream/str.h> 
+#include <util/stream/str.h>
 #include <util/string/cast.h>
- 
-namespace NXml { 
+
+namespace NXml {
 #define THROW(x, y) ythrow yexception() << #x << ": " << y
- 
+
     // libxml defines unsigned char -> xmlChar,
     // and all functions use xmlChar.
     inline static const char* CAST2CHAR(const xmlChar* x) {
@@ -17,123 +17,123 @@ namespace NXml {
         return reinterpret_cast<const xmlChar*>(x);
     }
 
-    template <class T> 
+    template <class T>
     void TNode::AttrInternal(TCharPtr& value, T& res, TStringBuf errContext) const {
-        try { 
-            res = FromString<T>(CAST2CHAR(value.Get())); 
+        try {
+            res = FromString<T>(CAST2CHAR(value.Get()));
         } catch (TFromStringException&) {
             THROW(XmlException, "Failed to convert string " << TString{TStringBuf(CAST2CHAR(value.Get())).substr(0, 50)}.Quote() << " from '" << errContext << "' to requested type");
-        } 
-    } 
- 
-    template <> 
+        }
+    }
+
+    template <>
     inline void TNode::AttrInternal(TCharPtr& value, TString& res, TStringBuf /*errContext*/) const {
         TString tmp(CAST2CHAR(value.Get()));
-        res.swap(tmp); 
-    } 
- 
-    template <class T> 
+        res.swap(tmp);
+    }
+
+    template <class T>
     T TNode::Attr(TZtStringBuf name) const {
         TCharPtr value(xmlGetProp(NodePointer, XMLCHAR(name.c_str())));
         if (!value) {
             THROW(AttributeNotFound, Path() << "@" << name);
-        } 
- 
-        T t; 
+        }
+
+        T t;
         AttrInternal(value, t, name);
-        return t; 
-    } 
- 
-    template <class T> 
+        return t;
+    }
+
+    template <class T>
     T TNode::Attr(TZtStringBuf name, const T& defvalue) const {
         TCharPtr attr(xmlGetProp(NodePointer, XMLCHAR(name.c_str())));
         if (!attr) {
-            return defvalue; 
-        } 
- 
-        T t; 
+            return defvalue;
+        }
+
+        T t;
         AttrInternal(attr, t, name);
-        return t; 
-    } 
- 
-    template <class T> 
+        return t;
+    }
+
+    template <class T>
     void TNode::Attr(TZtStringBuf name, T& value) const {
         TCharPtr attr(xmlGetProp(NodePointer, XMLCHAR(name.c_str())));
         if (!attr) {
             THROW(AttributeNotFound, Path() << name);
-        } 
- 
+        }
+
         AttrInternal(attr, value, name);
-    } 
- 
-    template <class T> 
+    }
+
+    template <class T>
     void TNode::Attr(TZtStringBuf name, T& value, const T& defvalue) const {
         TCharPtr attr(xmlGetProp(NodePointer, XMLCHAR(name.c_str())));
- 
+
         if (!attr) {
-            value = defvalue; 
+            value = defvalue;
         } else {
             AttrInternal(attr, value, name);
-        } 
-    } 
- 
-    template <class T> 
+        }
+    }
+
+    template <class T>
     T TNode::Value() const {
         if (!NodePointer || xmlIsBlankNode(NodePointer)) {
             THROW(NodeIsBlank, Path());
-        } 
- 
+        }
+
         TCharPtr val(xmlNodeGetContent(NodePointer));
-        T t; 
+        T t;
         AttrInternal(val, t, this->Name());
-        return t; 
-    } 
- 
-    template <class T> 
+        return t;
+    }
+
+    template <class T>
     T TNode::Value(const T& defvalue) const {
         if (!NodePointer || xmlIsBlankNode(NodePointer)) {
-            return defvalue; 
-        } 
- 
+            return defvalue;
+        }
+
         TCharPtr val(xmlNodeGetContent(NodePointer));
-        T t; 
+        T t;
         AttrInternal(val, t, this->Name());
-        return t; 
-    } 
- 
-    template <class T> 
+        return t;
+    }
+
+    template <class T>
     typename std::enable_if<!std::is_convertible_v<T, TStringBuf>, void>::type
     TNode::SetValue(const T& value) {
-        TStringStream ss; 
-        ss << value; 
+        TStringStream ss;
+        ss << value;
         SetValue(ss.Str());
     }
 
     inline void TNode::SetValue(TStringBuf value) {
-        xmlNodeSetContent(NodePointer, XMLCHAR("")); 
+        xmlNodeSetContent(NodePointer, XMLCHAR(""));
         xmlNodeAddContentLen(NodePointer, XMLCHAR(value.data()), value.Size());
-    } 
- 
+    }
+
     inline void TNode::SetAttr(TZtStringBuf name, TZtStringBuf value) {
         xmlAttr* attr = xmlSetProp(NodePointer, XMLCHAR(name.c_str()), XMLCHAR(value.c_str()));
- 
+
         if (!attr) {
             THROW(XmlException, "Can't set node attribute <"
                                     << name
                                     << "> to <"
                                     << value
                                     << ">");
-        } 
-    } 
- 
-    template <class T> 
+        }
+    }
+
+    template <class T>
     typename std::enable_if<!std::is_convertible_v<T, TZtStringBuf>, void>::type
     TNode::SetAttr(TZtStringBuf name, const T& value) {
-        TStringStream ss; 
-        ss << value; 
+        TStringStream ss;
+        ss << value;
         SetAttr(name, TZtStringBuf(ss.Str()));
-    } 
- 
+    }
+
     inline void TNode::SetAttr(TZtStringBuf name) {
         xmlAttr* attr = xmlSetProp(NodePointer, XMLCHAR(name.c_str()), nullptr);
 
@@ -151,37 +151,37 @@ namespace NXml {
                                     << ">");
     }
 
-    template <class T> 
+    template <class T>
     typename std::enable_if<!std::is_convertible_v<T, TZtStringBuf>, TNode>::type
     TNode::AddChild(TZtStringBuf name, const T& value) {
-        TStringStream ss; 
-        ss << value; 
+        TStringStream ss;
+        ss << value;
         return AddChild(name, TZtStringBuf(ss.Str()));
-    } 
- 
+    }
+
     inline TNode TNode::AddChild(TZtStringBuf name, TZtStringBuf value) {
         if (IsNull()) {
             THROW(XmlException, "addChild [name=" << name << ", value=" << value
                                                   << "]: can't add child to null node");
-        } 
- 
+        }
+
         xmlNode* child = nullptr;
- 
+
         if (value.empty()) {
             child = xmlNewTextChild(NodePointer, nullptr, XMLCHAR(name.c_str()), nullptr);
         } else {
-            child = xmlNewTextChild( 
+            child = xmlNewTextChild(
                 NodePointer, nullptr, XMLCHAR(name.c_str()), XMLCHAR(value.c_str()));
-        } 
- 
+        }
+
         if (!child) {
             THROW(XmlException, "addChild [name=" << name << ", value=" << value
                                                   << "]: xmlNewTextChild returned NULL");
-        } 
- 
+        }
+
         return TNode(DocPointer, child);
-    } 
- 
+    }
+
     template <class T>
     typename std::enable_if<!std::is_convertible_v<T, TStringBuf>, TNode>::type
     TNode::AddText(const T& value) {
diff --git a/library/cpp/xml/document/xml-document-decl.h b/library/cpp/xml/document/xml-document-decl.h
index dbc289ee04..bfda1fb7e6 100644
--- a/library/cpp/xml/document/xml-document-decl.h
+++ b/library/cpp/xml/document/xml-document-decl.h
@@ -1,52 +1,52 @@
-#pragma once 
+#pragma once
 
 #include <library/cpp/string_utils/ztstrbuf/ztstrbuf.h>
 
 #include <util/generic/string.h>
-#include <util/generic/vector.h> 
+#include <util/generic/vector.h>
 #include <util/stream/output.h>
 #include <util/stream/str.h>
-#include <algorithm> 
+#include <algorithm>
 #include "libxml-guards.h"
- 
-namespace NXml { 
+
+namespace NXml {
     class TNode;
- 
-    class TConstNodes; 
+
+    class TConstNodes;
     class TConstNode;
- 
+
     using TXPathContext = xmlXPathContext;
 
     class TDocument {
-    public: 
+    public:
         enum Source {
-            File, 
-            String, 
-            RootName, 
-        }; 
+            File,
+            String,
+            RootName,
+        };
 
-    public: 
-        /** 
+    public:
+        /**
         * create TDocument
         * @param source: filename, XML string, or name for the root element (depends on @src)
-        * @param src: source type: File | String | RootName 
-        * throws if file not found or cannot be parsed 
-        */ 
+        * @param src: source type: File | String | RootName
+        * throws if file not found or cannot be parsed
+        */
         TDocument(const TString& source, Source type = File);
- 
-    public: 
+
+    public:
         TDocument(const TDocument& that) = delete;
         TDocument& operator=(const TDocument& that) = delete;
- 
+
         TDocument(TDocument&& that);
         TDocument& operator=(TDocument&& that);
- 
-        /** 
-        * get root element 
-        */ 
+
+        /**
+        * get root element
+        */
         TNode Root();
         TConstNode Root() const;
- 
+
         void Save(IOutputStream& stream, TZtStringBuf enc = "", bool shouldFormat = true) const {
             int bufferSize = 0;
             xmlChar* xmlBuff = nullptr;
@@ -55,7 +55,7 @@ namespace NXml {
             TCharPtr xmlCharBuffPtr(xmlBuff);
             stream.Write(xmlBuff, bufferSize);
         }
- 
+
         TString ToString(TZtStringBuf enc = "", bool shouldFormat = true) const {
             TStringStream s;
             Save(s, enc, shouldFormat);
@@ -64,65 +64,65 @@ namespace NXml {
 
         void Swap(TDocument& that) {
             std::swap(this->Doc, that.Doc);
-        } 
- 
+        }
+
         xmlDocPtr GetImpl() {
             return Doc.Get();
         }
 
-    private: 
+    private:
         void ParseFile(const TString& file);
         void ParseString(TZtStringBuf xml);
- 
+
         TDocument(TDocHolder doc)
             : Doc(std::move(doc))
         {
         }
- 
+
         TDocHolder Doc;
-    }; 
- 
-    struct TNamespaceForXPath { 
+    };
+
+    struct TNamespaceForXPath {
         TString Prefix;
         TString Url;
-    }; 
+    };
     typedef TVector<TNamespaceForXPath> TNamespacesForXPath;
- 
+
     class TConstNodes {
-    private: 
+    private:
         struct TConstNodesRef {
             explicit TConstNodesRef(TConstNodes& n)
                 : r_(n)
             {
             }
-            TConstNodes& r_; 
-        }; 
+            TConstNodes& r_;
+        };
 
-    public: 
+    public:
         TConstNodes(const TConstNodes& nodes);
         TConstNodes& operator=(const TConstNodes& nodes);
- 
-        TConstNodes(TConstNodesRef ref); 
+
+        TConstNodes(TConstNodesRef ref);
         TConstNodes& operator=(TConstNodesRef ref);
- 
-        operator TConstNodesRef(); 
- 
-        /** 
-        * get node by id 
-        * @param number: node id 
-        */ 
+
+        operator TConstNodesRef();
+
+        /**
+        * get node by id
+        * @param number: node id
+        */
         TConstNode operator[](size_t number) const;
- 
-        /** 
-        * get number of nodes 
-        */ 
+
+        /**
+        * get number of nodes
+        */
         size_t Size() const {
             return SizeValue;
         }
         size_t size() const {
             return SizeValue;
         }
- 
+
         struct TNodeIter {
             const TConstNodes& Nodes;
             size_t Index;
@@ -145,30 +145,30 @@ namespace NXml {
             return TNodeIter{*this, size()};
         }
 
-    private: 
-        friend class TDocument; 
+    private:
+        friend class TDocument;
         friend class TConstNode;
         friend class TNode;
- 
+
         TConstNodes(xmlDoc* doc, TXPathObjectPtr obj);
- 
+
         size_t SizeValue;
         xmlDoc* Doc;
         TXPathObjectPtr Obj;
-    }; 
- 
+    };
+
     class TNode {
-    public: 
-        friend class TDocument; 
+    public:
+        friend class TDocument;
         friend class TConstNode;
         friend class TTextReader;
- 
-        /** 
-        * check if node is null 
-        */ 
+
+        /**
+        * check if node is null
+        */
         bool IsNull() const;
- 
-        /** 
+
+        /**
         * check if node is element node
         */
         bool IsElementNode() const;
@@ -187,16 +187,16 @@ namespace NXml {
 
         /**
         * get all element nodes matching given xpath expression
-        * @param xpath: xpath expression 
-        * @param quiet: don't throw exception if zero nodes found 
-        * @param ns: explicitly specify XML namespaces to use and their prefixes 
+        * @param xpath: xpath expression
+        * @param quiet: don't throw exception if zero nodes found
+        * @param ns: explicitly specify XML namespaces to use and their prefixes
         *
         * For historical reasons, this only works for *element* nodes.
         * Use the XPath function if you need other kinds of nodes.
-        */ 
+        */
         TConstNodes Nodes(TZtStringBuf xpath, bool quiet = false, const TNamespacesForXPath& ns = TNamespacesForXPath()) const;
- 
-        /** 
+
+        /**
         * get all element nodes matching given xpath expression
         * @param xpath: xpath expression
         * @param quiet: don't throw exception if zero nodes found
@@ -225,19 +225,19 @@ namespace NXml {
 
         /**
         * get the first element node matching given xpath expression
-        * @param xpath: path to node (from current node) 
-        * @param quiet: don't throw exception if node not found, 
+        * @param xpath: path to node (from current node)
+        * @param quiet: don't throw exception if node not found,
         *               return null node (@see IsNull())
-        * @param ns: explicitly specify XML namespaces to use and their prefixes 
+        * @param ns: explicitly specify XML namespaces to use and their prefixes
         *
         * For historical reasons, this only works for *element* nodes.
         * Use the XPath function if you need other kinds of nodes.
-        */ 
+        */
         /// @todo: quiet should be default, empty nodeset is not an error
         TNode Node(TZtStringBuf xpath, bool quiet = false, const TNamespacesForXPath& ns = TNamespacesForXPath());
         TConstNode Node(TZtStringBuf xpath, bool quiet = false, const TNamespacesForXPath& ns = TNamespacesForXPath()) const;
- 
-        /** 
+
+        /**
         * get the first element node matching given xpath expression
         * @param xpath: path to node (from current node)
         * @param quiet: don't throw exception if node not found,
@@ -251,18 +251,18 @@ namespace NXml {
         TConstNode Node(TZtStringBuf xpath, bool quiet, TXPathContext& ctxt) const;
 
         /**
-        * get node first child 
-        * @param name: child name 
+        * get node first child
+        * @param name: child name
         * @note if name is empty, returns the first child node of type "element"
         * @note returns null node if no child found
-        */ 
+        */
         TNode FirstChild(TZtStringBuf name);
         TConstNode FirstChild(TZtStringBuf name) const;
- 
+
         TNode FirstChild();
         TConstNode FirstChild() const;
 
-        /** 
+        /**
         * get parent node
         * throws exception if has no parent
         */
@@ -270,36 +270,36 @@ namespace NXml {
         TConstNode Parent() const;
 
         /**
-        * get node neighbour 
-        * @param name: neighbour name 
+        * get node neighbour
+        * @param name: neighbour name
         * @note if name is empty, returns the next sibling node of type "element"
         * @node returns null node if no neighbour found
-        */ 
+        */
         TNode NextSibling(TZtStringBuf name);
         TConstNode NextSibling(TZtStringBuf name) const;
- 
+
         TNode NextSibling();
         TConstNode NextSibling() const;
 
-        /** 
-        * create child node 
-        * @param name: child name 
-        * returns new empty node 
-        */ 
+        /**
+        * create child node
+        * @param name: child name
+        * returns new empty node
+        */
         TNode AddChild(TZtStringBuf name);
- 
-        /** 
-        * create child node with given value 
-        * @param name: child name 
-        * @param value: node value 
-        */ 
-        template <class T> 
+
+        /**
+        * create child node with given value
+        * @param name: child name
+        * @param value: node value
+        */
+        template <class T>
         typename std::enable_if<!std::is_convertible_v<T, TZtStringBuf>, TNode>::type
         AddChild(TZtStringBuf name, const T& value);
- 
+
         TNode AddChild(TZtStringBuf name, TZtStringBuf value);
 
-        /** 
+        /**
         * add child node, making recursive copy of original
         * @param node: node to copy from
         * returns added node
@@ -318,80 +318,80 @@ namespace NXml {
         TNode AddText(TStringBuf value);
 
         /**
-        * get node attribute 
-        * @param name: attribute name 
-        * throws exception if attribute not found 
-        */ 
-        template <class T> 
+        * get node attribute
+        * @param name: attribute name
+        * throws exception if attribute not found
+        */
+        template <class T>
         T Attr(TZtStringBuf name) const;
- 
-        /** 
-        * get node attribute 
-        * @param name: attribute name 
-        * returns default value if attribute not found 
-        */ 
-        template <class T> 
+
+        /**
+        * get node attribute
+        * @param name: attribute name
+        * returns default value if attribute not found
+        */
+        template <class T>
         T Attr(TZtStringBuf name, const T& defvalue) const;
- 
-        /** 
-        * get node attribute 
-        * @param name: attribute name 
-        * @param value: return-value 
-        * throws exception if attribute not found 
-        */ 
-        template <class T> 
+
+        /**
+        * get node attribute
+        * @param name: attribute name
+        * @param value: return-value
+        * throws exception if attribute not found
+        */
+        template <class T>
         void Attr(TZtStringBuf name, T& value) const;
- 
-        /** 
-        * get node attribute 
-        * @param name: attribute name 
-        * @param defvalue: default value 
-        * @param value: return-value 
-        * returns default value if attribute not found, attr value otherwise 
-        */ 
-        template <class T> 
+
+        /**
+        * get node attribute
+        * @param name: attribute name
+        * @param defvalue: default value
+        * @param value: return-value
+        * returns default value if attribute not found, attr value otherwise
+        */
+        template <class T>
         void Attr(TZtStringBuf name, T& value, const T& defvalue) const;
- 
-        /** 
-        * get node value (text) 
-        * @throws exception if node is blank 
-        */ 
-        template <class T> 
+
+        /**
+        * get node value (text)
+        * @throws exception if node is blank
+        */
+        template <class T>
         T Value() const;
- 
-        /** 
-        * get node value 
-        * @param defvalue: default value 
-        * returns default value if node is blank 
-        */ 
-        template <class T> 
+
+        /**
+        * get node value
+        * @param defvalue: default value
+        * returns default value if node is blank
+        */
+        template <class T>
         T Value(const T& defvalue) const;
- 
-        /** 
-        * set node value 
-        * @param value: new text value 
-        */ 
+
+        /**
+        * set node value
+        * @param value: new text value
+        */
         template <class T>
         typename std::enable_if<!std::is_convertible_v<T, TStringBuf>, void>::type
         SetValue(const T& value);
- 
+
         void SetValue(TStringBuf value);
 
-        /** 
-        * set/reset node attribute value, 
-        * if attribute does not exist, it'll be created 
-        * @param name: attribute name 
-        * @param value: attribute value 
-        */ 
+        /**
+        * set/reset node attribute value,
+        * if attribute does not exist, it'll be created
+        * @param name: attribute name
+        * @param value: attribute value
+        */
         template<class T>
         typename std::enable_if<!std::is_convertible_v<T, TZtStringBuf>, void>::type
         SetAttr(TZtStringBuf name, const T& value);
- 
+
         void SetAttr(TZtStringBuf name, TZtStringBuf value);
 
         void SetAttr(TZtStringBuf name);
 
-        /** 
+        /**
         * delete node attribute
         * @param name: attribute name
         */
@@ -414,10 +414,10 @@ namespace NXml {
         TString Name() const;
 
         /**
-        * get node xpath 
-        */ 
+        * get node xpath
+        */
         TString Path() const;
- 
+
         /**
         * get node xml representation
         */
@@ -445,15 +445,15 @@ namespace NXml {
         */
         void Remove();
 
-        /** 
-        * constructs null node 
-        */ 
+        /**
+        * constructs null node
+        */
         TNode()
             : NodePointer(nullptr)
             , DocPointer(nullptr)
         {
         }
- 
+
     private:
         friend class TConstNodes;
 
@@ -462,30 +462,30 @@ namespace NXml {
             , DocPointer(doc)
         {
         }
- 
+
         TNode Find(xmlNode* start, TZtStringBuf name);
- 
+
         template <class T>
         void AttrInternal(TCharPtr& value, T& res, TStringBuf errContext) const;
- 
+
         void SaveInternal(IOutputStream& stream, TZtStringBuf enc, int options) const;
 
         xmlNode* NodePointer;
         xmlDoc* DocPointer;
-    }; 
- 
+    };
+
     class TConstNode {
-    public: 
-        friend class TDocument; 
-        friend class TConstNodes; 
+    public:
+        friend class TDocument;
+        friend class TConstNodes;
         friend class TNode;
-        /** 
-        * check if node is null 
-        */ 
+        /**
+        * check if node is null
+        */
         bool IsNull() const {
             return ActualNode.IsNull();
-        } 
- 
+        }
+
         bool IsElementNode() const {
             return ActualNode.IsElementNode();
         }
@@ -494,7 +494,7 @@ namespace NXml {
             return ActualNode.Parent();
         }
 
-        /** 
+        /**
         * Create xpath context to be used later for fast xpath evaluation.
         * @param nss: explicitly specify XML namespaces to use and their prefixes
         */
@@ -504,18 +504,18 @@ namespace NXml {
 
         /**
         * get all element nodes matching given xpath expression
-        * @param xpath: xpath expression 
-        * @param quiet: don't throw exception if zero nodes found 
+        * @param xpath: xpath expression
+        * @param quiet: don't throw exception if zero nodes found
         * @param ns: explicitly specify XML namespaces to use and their prefixes
         *
         * For historical reasons, this only works for *element* nodes.
         * Use the XPath function if you need other kinds of nodes.
-        */ 
+        */
         TConstNodes Nodes(TZtStringBuf xpath, bool quiet = false, const TNamespacesForXPath& ns = TNamespacesForXPath()) const {
             return ActualNode.Nodes(xpath, quiet, ns);
-        } 
- 
-        /** 
+        }
+
+        /**
         * get all element nodes matching given xpath expression
         * @param xpath: xpath expression
         * @param quiet: don't throw exception if zero nodes found
@@ -550,18 +550,18 @@ namespace NXml {
 
         /**
         * get the first element node matching given xpath expression
-        * @param xpath: path to node (from current node) 
-        * @param quiet: don't throw exception if node not found, 
+        * @param xpath: path to node (from current node)
+        * @param quiet: don't throw exception if node not found,
         *               return null node (@see IsNull())
         * @param ns: explicitly specify XML namespaces to use and their prefixes
         *
         * For historical reasons, this only works for *element* nodes.
         * Use the XPath function if you need other kinds of nodes.
-        */ 
+        */
         TConstNode Node(TZtStringBuf xpath, bool quiet = false, const TNamespacesForXPath& ns = TNamespacesForXPath()) const {
             return ActualNode.Node(xpath, quiet, ns);
-        } 
- 
+        }
+
         /**
         * get the first element node matching given xpath expression
         * @param xpath: path to node (from current node)
@@ -578,88 +578,88 @@ namespace NXml {
 
         TConstNode FirstChild(TZtStringBuf name) const {
             return ActualNode.FirstChild(name);
-        } 
- 
+        }
+
         TConstNode FirstChild() const {
             return ActualNode.FirstChild();
         }
 
-        /** 
-        * get node neighbour 
-        * @param name: neighbour name 
-        * throws exception if no neighbour found 
-        */ 
+        /**
+        * get node neighbour
+        * @param name: neighbour name
+        * throws exception if no neighbour found
+        */
         TConstNode NextSibling(TZtStringBuf name) const {
             return ActualNode.NextSibling(name);
-        } 
- 
+        }
+
         TConstNode NextSibling() const {
             return ActualNode.NextSibling();
         }
 
-        /** 
-        * get node attribute 
-        * @param name: attribute name 
-        * throws exception if attribute not found 
-        */ 
-        template <class T> 
+        /**
+        * get node attribute
+        * @param name: attribute name
+        * throws exception if attribute not found
+        */
+        template <class T>
         T Attr(TZtStringBuf name) const {
             return ActualNode.Attr<T>(name);
-        } 
- 
-        /** 
-        * get node attribute 
-        * @param name: attribute name 
-        * returns default value if attribute not found 
-        */ 
-        template <class T> 
+        }
+
+        /**
+        * get node attribute
+        * @param name: attribute name
+        * returns default value if attribute not found
+        */
+        template <class T>
         T Attr(TZtStringBuf name, const T& defvalue) const {
             return ActualNode.Attr(name, defvalue);
-        } 
- 
-        /** 
-        * get node attribute 
-        * @param name: attribute name 
-        * @param value: return-value 
-        * throws exception if attribute not found 
-        */ 
-        template <class T> 
+        }
+
+        /**
+        * get node attribute
+        * @param name: attribute name
+        * @param value: return-value
+        * throws exception if attribute not found
+        */
+        template <class T>
         void Attr(TZtStringBuf name, T& value) const {
             return ActualNode.Attr(name, value);
-        } 
- 
-        /** 
-        * get node attribute 
-        * @param name: attribute name 
-        * @param defvalue: default value 
-        * @param value: return-value 
-        * returns default value if attribute not found, attr value otherwise 
-        */ 
-        template <class T> 
+        }
+
+        /**
+        * get node attribute
+        * @param name: attribute name
+        * @param defvalue: default value
+        * @param value: return-value
+        * returns default value if attribute not found, attr value otherwise
+        */
+        template <class T>
         void Attr(TZtStringBuf name, T& value, const T& defvalue) const {
             return ActualNode.Attr(name, value, defvalue);
-        } 
- 
-        /** 
-        * get node value (text) 
-        * @throws exception if node is blank 
-        */ 
-        template <class T> 
+        }
+
+        /**
+        * get node value (text)
+        * @throws exception if node is blank
+        */
+        template <class T>
         T Value() const {
             return ActualNode.Value<T>();
-        } 
- 
-        /** 
-        * get node value 
-        * @param defvalue: default value 
-        * returns default value if node is blank 
-        */ 
-        template <class T> 
+        }
+
+        /**
+        * get node value
+        * @param defvalue: default value
+        * returns default value if node is blank
+        */
+        template <class T>
         T Value(const T& defvalue) const {
             return ActualNode.Value(defvalue);
-        } 
- 
-        /** 
+        }
+
+        /**
         * get node name
         */
         TString Name() const {
@@ -688,12 +688,12 @@ namespace NXml {
         }
 
         /**
-        * get node xpath 
-        */ 
+        * get node xpath
+        */
         TString Path() const {
             return ActualNode.Path();
-        } 
- 
+        }
+
         /**
         * get node xml representation
         */
@@ -706,13 +706,13 @@ namespace NXml {
             : ActualNode(node)
         {
         }
- 
+
         TNode ConstCast() const {
             return ActualNode;
         }
 
-    private: 
+    private:
         TNode ActualNode;
-    }; 
- 
+    };
+
 }
diff --git a/library/cpp/xml/document/xml-document.cpp b/library/cpp/xml/document/xml-document.cpp
index 3e29147b53..18a554d732 100644
--- a/library/cpp/xml/document/xml-document.cpp
+++ b/library/cpp/xml/document/xml-document.cpp
@@ -1,8 +1,8 @@
-#include "xml-document.h" 
- 
+#include "xml-document.h"
+
 #include <libxml/xinclude.h>
 #include <libxml/xpathInternals.h>
- 
+
 #include <library/cpp/xml/init/init.h>
 
 #include <util/generic/yexception.h>
@@ -16,7 +16,7 @@ namespace {
     } initer;
 }
 
-namespace NXml { 
+namespace NXml {
     TDocument::TDocument(const TString& xml, Source type) {
         switch (type) {
             case File:
@@ -27,87 +27,87 @@ namespace NXml {
                 break;
             case RootName: {
                 TDocHolder doc(xmlNewDoc(XMLCHAR("1.0")));
-                if (!doc) 
-                    THROW(XmlException, "Can't create xml document."); 
+                if (!doc)
+                    THROW(XmlException, "Can't create xml document.");
                 doc->encoding = xmlStrdup(XMLCHAR("utf-8"));
 
                 TNodePtr node(xmlNewNode(nullptr, XMLCHAR(xml.c_str())));
                 if (!node)
-                    THROW(XmlException, "Can't create root node."); 
-                xmlDocSetRootElement(doc.Get(), node.Get()); 
+                    THROW(XmlException, "Can't create root node.");
+                xmlDocSetRootElement(doc.Get(), node.Get());
                 Y_UNUSED(node.Release());
                 Doc = std::move(doc);
             } break;
             default:
                 THROW(InvalidArgument, "Wrong source type");
-        } 
-    } 
- 
+        }
+    }
+
     TDocument::TDocument(TDocument&& doc)
         : Doc(std::move(doc.Doc))
     {
     }
- 
+
     TDocument& TDocument::operator=(TDocument&& doc) {
-        if (this != &doc) 
+        if (this != &doc)
             doc.Swap(*this);
- 
-        return *this; 
-    } 
- 
+
+        return *this;
+    }
+
     void TDocument::ParseFile(const TString& file) {
         if (!NFs::Exists(file))
-            THROW(XmlException, "File " << file << " doesn't exist"); 
- 
-        TParserCtxtPtr pctx(xmlNewParserCtxt()); 
-        if (!pctx) 
-            THROW(XmlException, "Can't create parser context"); 
- 
+            THROW(XmlException, "File " << file << " doesn't exist");
+
+        TParserCtxtPtr pctx(xmlNewParserCtxt());
+        if (!pctx)
+            THROW(XmlException, "Can't create parser context");
+
         TDocHolder doc(xmlCtxtReadFile(pctx.Get(), file.c_str(), nullptr, XML_PARSE_NOCDATA));
-        if (!doc) 
-            THROW(XmlException, "Can't parse file " << file); 
- 
-        int res = xmlXIncludeProcessFlags(doc.Get(), XML_PARSE_XINCLUDE | XML_PARSE_NOCDATA | XML_PARSE_NOXINCNODE); 
- 
-        if (res == -1) 
-            THROW(XmlException, "XIncludes processing failed"); 
- 
+        if (!doc)
+            THROW(XmlException, "Can't parse file " << file);
+
+        int res = xmlXIncludeProcessFlags(doc.Get(), XML_PARSE_XINCLUDE | XML_PARSE_NOCDATA | XML_PARSE_NOXINCNODE);
+
+        if (res == -1)
+            THROW(XmlException, "XIncludes processing failed");
+
         Doc = std::move(doc);
-    } 
- 
+    }
+
     void TDocument::ParseString(TZtStringBuf xml) {
-        TParserCtxtPtr pctx(xmlNewParserCtxt()); 
+        TParserCtxtPtr pctx(xmlNewParserCtxt());
         if (pctx.Get() == nullptr)
-            THROW(XmlException, "Can't create parser context"); 
- 
+            THROW(XmlException, "Can't create parser context");
+
         TDocHolder doc(xmlCtxtReadMemory(pctx.Get(), xml.c_str(), (int)xml.size(), nullptr, nullptr, XML_PARSE_NOCDATA));
- 
-        if (!doc) 
-            THROW(XmlException, "Can't parse string"); 
- 
+
+        if (!doc)
+            THROW(XmlException, "Can't parse string");
+
         Doc = std::move(doc);
-    } 
- 
+    }
+
     TNode TDocument::Root() {
         xmlNode* r = xmlDocGetRootElement(Doc.Get());
         if (r == nullptr)
-            THROW(XmlException, "TDocument hasn't root element"); 
- 
+            THROW(XmlException, "TDocument hasn't root element");
+
         return TNode(Doc.Get(), r);
-    } 
- 
+    }
+
     TConstNode TDocument::Root() const {
         xmlNode* r = xmlDocGetRootElement(Doc.Get());
         if (r == nullptr)
-            THROW(XmlException, "TDocument hasn't root element"); 
- 
+            THROW(XmlException, "TDocument hasn't root element");
+
         return TConstNode(TNode(Doc.Get(), r));
-    } 
- 
+    }
+
     bool TNode::IsNull() const {
         return NodePointer == nullptr;
-    } 
- 
+    }
+
     bool TNode::IsElementNode() const {
         return !IsNull() && (NodePointer->type == XML_ELEMENT_NODE);
     }
@@ -130,7 +130,7 @@ namespace NXml {
         TXPathContextPtr ctxt = CreateXPathContext(ns);
         return XPath(xpath, quiet, *ctxt);
     }
- 
+
     TConstNodes TNode::XPath(TZtStringBuf xpath, bool quiet, TXPathContext& ctxt) const {
         if (xmlXPathSetContextNode(NodePointer, &ctxt) != 0)
             THROW(XmlException, "Can't set xpath context node, probably the context is associated with another document");
@@ -142,11 +142,11 @@ namespace NXml {
         TConstNodes nodes(DocPointer, obj);
 
         if (nodes.Size() == 0 && !quiet)
-            THROW(NodeNotFound, xpath); 
- 
-        return nodes; 
-    } 
- 
+            THROW(NodeNotFound, xpath);
+
+        return nodes;
+    }
+
     TConstNodes TNode::Nodes(TZtStringBuf xpath, bool quiet, const TNamespacesForXPath& ns) const {
         TXPathContextPtr ctxt = CreateXPathContext(ns);
         return Nodes(xpath, quiet, *ctxt);
@@ -158,12 +158,12 @@ namespace NXml {
             THROW(XmlException, "xpath points to non-element nodes: " << xpath);
         return nodes;
     }
- 
+
     TNode TNode::Node(TZtStringBuf xpath, bool quiet, const TNamespacesForXPath& ns) {
         TXPathContextPtr ctxt = CreateXPathContext(ns);
         return Node(xpath, quiet, *ctxt);
     }
- 
+
     TConstNode TNode::Node(TZtStringBuf xpath, bool quiet, const TNamespacesForXPath& ns) const {
         TXPathContextPtr ctxt = CreateXPathContext(ns);
         return Node(xpath, quiet, *ctxt);
@@ -173,29 +173,29 @@ namespace NXml {
         TConstNodes n = Nodes(xpath, quiet, ctxt);
 
         if (n.Size() == 0 && !quiet)
-            THROW(NodeNotFound, xpath); 
- 
+            THROW(NodeNotFound, xpath);
+
         if (n.Size() == 0)
             return TNode();
-        else 
+        else
             return n[0].ConstCast();
-    } 
- 
+    }
+
     TConstNode TNode::Node(TZtStringBuf xpath, bool quiet, TXPathContext& ctxt) const {
         return const_cast<TNode*>(this)->Node(xpath, quiet, ctxt);
-    } 
- 
+    }
+
     TNode TNode::FirstChild(TZtStringBuf name) {
         if (IsNull())
-            THROW(XmlException, "Node is null"); 
- 
+            THROW(XmlException, "Node is null");
+
         return Find(NodePointer->children, name);
-    } 
- 
+    }
+
     TConstNode TNode::FirstChild(TZtStringBuf name) const {
         return const_cast<TNode*>(this)->FirstChild(name);
-    } 
- 
+    }
+
     TNode TNode::FirstChild() {
         if (IsNull())
             THROW(XmlException, "Node is null");
@@ -220,15 +220,15 @@ namespace NXml {
 
     TNode TNode::NextSibling(TZtStringBuf name) {
         if (IsNull())
-            THROW(XmlException, "Node is null"); 
- 
+            THROW(XmlException, "Node is null");
+
         return Find(NodePointer->next, name);
-    } 
- 
+    }
+
     TConstNode TNode::NextSibling(TZtStringBuf name) const {
         return const_cast<TNode*>(this)->NextSibling(name);
-    } 
- 
+    }
+
     TNode TNode::NextSibling() {
         if (IsNull())
             THROW(XmlException, "Node is null");
@@ -240,12 +240,12 @@ namespace NXml {
         return const_cast<TNode*>(this)->NextSibling();
     }
 
-    /* NOTE: by default child will inherit it's parent ns */ 
- 
+    /* NOTE: by default child will inherit it's parent ns */
+
     TNode TNode::AddChild(TZtStringBuf name) {
-        return AddChild(name, ""); 
-    } 
- 
+        return AddChild(name, "");
+    }
+
     /* NOTE: source node will be copied, as otherwise it will be double-freed from this and its own document */
 
     TNode TNode::AddChild(const TConstNode& node) {
@@ -257,34 +257,34 @@ namespace NXml {
     void TNode::SetPrivate(void* priv) {
         NodePointer->_private = priv;
     }
- 
+
     void* TNode::GetPrivate() const {
         return NodePointer->_private;
     }
 
     TNode TNode::Find(xmlNode* start, TZtStringBuf name) {
-        for (; start; start = start->next) 
+        for (; start; start = start->next)
             if (start->type == XML_ELEMENT_NODE && (name.empty() || !xmlStrcmp(start->name, XMLCHAR(name.c_str()))))
                 return TNode(DocPointer, start);
- 
+
         return TNode();
-    } 
- 
+    }
+
     TString TNode::Name() const {
         if (IsNull())
             THROW(XmlException, "Node is null");
 
         return CAST2CHAR(NodePointer->name);
     }
- 
+
     TString TNode::Path() const {
         TCharPtr path(xmlGetNodePath(NodePointer));
-        if (!!path) 
-            return CAST2CHAR(path.Get()); 
-        else 
-            return ""; 
-    } 
- 
+        if (!!path)
+            return CAST2CHAR(path.Get());
+        else
+            return "";
+    }
+
     xmlNode* TNode::GetPtr() {
         return NodePointer;
     }
@@ -335,57 +335,57 @@ namespace NXml {
         : SizeValue(nodes.Size())
         , Doc(nodes.Doc)
         , Obj(nodes.Obj)
-    { 
-    } 
- 
+    {
+    }
+
     TConstNodes& TConstNodes::operator=(const TConstNodes& nodes) {
         if (this != &nodes) {
             SizeValue = nodes.Size();
             Doc = nodes.Doc;
             Obj = nodes.Obj;
-        } 
- 
-        return *this; 
-    } 
- 
-    TConstNodes::TConstNodes(TConstNodesRef ref) 
+        }
+
+        return *this;
+    }
+
+    TConstNodes::TConstNodes(TConstNodesRef ref)
         : SizeValue(ref.r_.Size())
         , Doc(ref.r_.Doc)
         , Obj(ref.r_.Obj)
-    { 
-    } 
- 
+    {
+    }
+
     TConstNodes& TConstNodes::operator=(TConstNodesRef ref) {
         if (this != &ref.r_) {
             SizeValue = ref.r_.Size();
             Doc = ref.r_.Doc;
             Obj = ref.r_.Obj;
-        } 
-        return *this; 
-    } 
- 
+        }
+        return *this;
+    }
+
     TConstNodes::operator TConstNodesRef() {
-        return TConstNodesRef(*this); 
-    } 
- 
+        return TConstNodesRef(*this);
+    }
+
     TConstNodes::TConstNodes(xmlDoc* doc, TXPathObjectPtr obj)
         : SizeValue(obj && obj->nodesetval ? obj->nodesetval->nodeNr : 0)
         , Doc(doc)
         , Obj(obj)
-    { 
-    } 
- 
+    {
+    }
+
     TConstNode TConstNodes::operator[](size_t number) const {
         if (number + 1 > Size())
-            THROW(XmlException, "index out of range " << number); 
- 
+            THROW(XmlException, "index out of range " << number);
+
         if (!Obj || !Obj->nodesetval)
             THROW(XmlException, "Broken TConstNodes object, Obj is null");
- 
+
         xmlNode* node = Obj->nodesetval->nodeTab[number];
         return TNode(Doc, node);
-    } 
- 
+    }
+
     TConstNode TConstNodes::TNodeIter::operator*() const {
         return Nodes[Index];
     }
diff --git a/library/cpp/xml/document/xml-document.h b/library/cpp/xml/document/xml-document.h
index ff496bb138..829ba09cc4 100644
--- a/library/cpp/xml/document/xml-document.h
+++ b/library/cpp/xml/document/xml-document.h
@@ -1,4 +1,4 @@
-#pragma once 
- 
+#pragma once
+
 #include "xml-document-decl.h"
 #include "node-attr.h"
diff --git a/library/cpp/xml/document/ya.make b/library/cpp/xml/document/ya.make
index 1f284951e8..86bbd639cf 100644
--- a/library/cpp/xml/document/ya.make
+++ b/library/cpp/xml/document/ya.make
@@ -1,17 +1,17 @@
 LIBRARY()
- 
+
 OWNER(finder)
 
 SRCS(
-    xml-document.cpp 
+    xml-document.cpp
     xml-textreader.cpp
     xml-options.cpp
-) 
- 
-PEERDIR( 
+)
+
+PEERDIR(
     library/cpp/xml/init
-    contrib/libs/libxml 
+    contrib/libs/libxml
     library/cpp/string_utils/ztstrbuf
-) 
- 
-END() 
+)
+
+END()