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author | aozeritsky <aozeritsky@yandex-team.ru> | 2022-02-10 16:46:39 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:46:39 +0300 |
commit | 4a6816dea1bcaee46ce29a51a5fd7d3495012858 (patch) | |
tree | d98d6003e190b9e761bd77a83cd98428f9657b35 /contrib/libs/pcre/pcre_stringpiece.h | |
parent | 7aa4cf700385ff96999c5cc301171ff157974773 (diff) | |
download | ydb-4a6816dea1bcaee46ce29a51a5fd7d3495012858.tar.gz |
Restoring authorship annotation for <aozeritsky@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/pcre/pcre_stringpiece.h')
-rw-r--r-- | contrib/libs/pcre/pcre_stringpiece.h | 338 |
1 files changed, 169 insertions, 169 deletions
diff --git a/contrib/libs/pcre/pcre_stringpiece.h b/contrib/libs/pcre/pcre_stringpiece.h index cd0a7c9bf4d..a1dd26df71b 100644 --- a/contrib/libs/pcre/pcre_stringpiece.h +++ b/contrib/libs/pcre/pcre_stringpiece.h @@ -1,47 +1,47 @@ -// Copyright (c) 2005, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Author: Sanjay Ghemawat -// -// A string like object that points into another piece of memory. -// Useful for providing an interface that allows clients to easily -// pass in either a "const char*" or a "string". -// -// Arghh! I wish C++ literals were automatically of type "string". - -#ifndef _PCRE_STRINGPIECE_H -#define _PCRE_STRINGPIECE_H - -#include <cstring> -#include <string> -#include <iosfwd> // for ostream forward-declaration - +// Copyright (c) 2005, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Author: Sanjay Ghemawat +// +// A string like object that points into another piece of memory. +// Useful for providing an interface that allows clients to easily +// pass in either a "const char*" or a "string". +// +// Arghh! I wish C++ literals were automatically of type "string". + +#ifndef _PCRE_STRINGPIECE_H +#define _PCRE_STRINGPIECE_H + +#include <cstring> +#include <string> +#include <iosfwd> // for ostream forward-declaration + #if 0 #define HAVE_TYPE_TRAITS #include <type_traits.h> @@ -49,132 +49,132 @@ #define HAVE_TYPE_TRAITS #error #include <bits/type_traits.h> #endif - + #include "pcre.h" namespace pcrecpp { -using std::memcmp; -using std::strlen; -using std::string; - -class PCRECPP_EXP_DEFN StringPiece { - private: - const char* ptr_; - int length_; - - public: - // We provide non-explicit singleton constructors so users can pass - // in a "const char*" or a "string" wherever a "StringPiece" is - // expected. - StringPiece() - : ptr_(NULL), length_(0) { } - StringPiece(const char* str) - : ptr_(str), length_(static_cast<int>(strlen(ptr_))) { } - StringPiece(const unsigned char* str) - : ptr_(reinterpret_cast<const char*>(str)), - length_(static_cast<int>(strlen(ptr_))) { } - StringPiece(const string& str) - : ptr_(str.data()), length_(static_cast<int>(str.size())) { } - StringPiece(const char* offset, int len) - : ptr_(offset), length_(len) { } - - // data() may return a pointer to a buffer with embedded NULs, and the - // returned buffer may or may not be null terminated. Therefore it is - // typically a mistake to pass data() to a routine that expects a NUL - // terminated string. Use "as_string().c_str()" if you really need to do - // this. Or better yet, change your routine so it does not rely on NUL - // termination. - const char* data() const { return ptr_; } - int size() const { return length_; } - bool empty() const { return length_ == 0; } - - void clear() { ptr_ = NULL; length_ = 0; } - void set(const char* buffer, int len) { ptr_ = buffer; length_ = len; } - void set(const char* str) { - ptr_ = str; - length_ = static_cast<int>(strlen(str)); - } - void set(const void* buffer, int len) { - ptr_ = reinterpret_cast<const char*>(buffer); - length_ = len; - } - - char operator[](int i) const { return ptr_[i]; } - - void remove_prefix(int n) { - ptr_ += n; - length_ -= n; - } - - void remove_suffix(int n) { - length_ -= n; - } - - bool operator==(const StringPiece& x) const { - return ((length_ == x.length_) && - (memcmp(ptr_, x.ptr_, length_) == 0)); - } - bool operator!=(const StringPiece& x) const { - return !(*this == x); - } - -#define STRINGPIECE_BINARY_PREDICATE(cmp,auxcmp) \ - bool operator cmp (const StringPiece& x) const { \ - int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_); \ - return ((r auxcmp 0) || ((r == 0) && (length_ cmp x.length_))); \ - } - STRINGPIECE_BINARY_PREDICATE(<, <); - STRINGPIECE_BINARY_PREDICATE(<=, <); - STRINGPIECE_BINARY_PREDICATE(>=, >); - STRINGPIECE_BINARY_PREDICATE(>, >); -#undef STRINGPIECE_BINARY_PREDICATE - - int compare(const StringPiece& x) const { - int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_); - if (r == 0) { - if (length_ < x.length_) r = -1; - else if (length_ > x.length_) r = +1; - } - return r; - } - - string as_string() const { - return string(data(), size()); - } - - void CopyToString(string* target) const { - target->assign(ptr_, length_); - } - - // Does "this" start with "x" - bool starts_with(const StringPiece& x) const { - return ((length_ >= x.length_) && (memcmp(ptr_, x.ptr_, x.length_) == 0)); - } -}; - -} // namespace pcrecpp - -// ------------------------------------------------------------------ -// Functions used to create STL containers that use StringPiece -// Remember that a StringPiece's lifetime had better be less than -// that of the underlying string or char*. If it is not, then you -// cannot safely store a StringPiece into an STL container -// ------------------------------------------------------------------ - -#ifdef HAVE_TYPE_TRAITS -// This makes vector<StringPiece> really fast for some STL implementations -template<> struct __type_traits<pcrecpp::StringPiece> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; -#endif - -// allow StringPiece to be logged -PCRECPP_EXP_DECL std::ostream& operator<<(std::ostream& o, - const pcrecpp::StringPiece& piece); - -#endif /* _PCRE_STRINGPIECE_H */ +using std::memcmp; +using std::strlen; +using std::string; + +class PCRECPP_EXP_DEFN StringPiece { + private: + const char* ptr_; + int length_; + + public: + // We provide non-explicit singleton constructors so users can pass + // in a "const char*" or a "string" wherever a "StringPiece" is + // expected. + StringPiece() + : ptr_(NULL), length_(0) { } + StringPiece(const char* str) + : ptr_(str), length_(static_cast<int>(strlen(ptr_))) { } + StringPiece(const unsigned char* str) + : ptr_(reinterpret_cast<const char*>(str)), + length_(static_cast<int>(strlen(ptr_))) { } + StringPiece(const string& str) + : ptr_(str.data()), length_(static_cast<int>(str.size())) { } + StringPiece(const char* offset, int len) + : ptr_(offset), length_(len) { } + + // data() may return a pointer to a buffer with embedded NULs, and the + // returned buffer may or may not be null terminated. Therefore it is + // typically a mistake to pass data() to a routine that expects a NUL + // terminated string. Use "as_string().c_str()" if you really need to do + // this. Or better yet, change your routine so it does not rely on NUL + // termination. + const char* data() const { return ptr_; } + int size() const { return length_; } + bool empty() const { return length_ == 0; } + + void clear() { ptr_ = NULL; length_ = 0; } + void set(const char* buffer, int len) { ptr_ = buffer; length_ = len; } + void set(const char* str) { + ptr_ = str; + length_ = static_cast<int>(strlen(str)); + } + void set(const void* buffer, int len) { + ptr_ = reinterpret_cast<const char*>(buffer); + length_ = len; + } + + char operator[](int i) const { return ptr_[i]; } + + void remove_prefix(int n) { + ptr_ += n; + length_ -= n; + } + + void remove_suffix(int n) { + length_ -= n; + } + + bool operator==(const StringPiece& x) const { + return ((length_ == x.length_) && + (memcmp(ptr_, x.ptr_, length_) == 0)); + } + bool operator!=(const StringPiece& x) const { + return !(*this == x); + } + +#define STRINGPIECE_BINARY_PREDICATE(cmp,auxcmp) \ + bool operator cmp (const StringPiece& x) const { \ + int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_); \ + return ((r auxcmp 0) || ((r == 0) && (length_ cmp x.length_))); \ + } + STRINGPIECE_BINARY_PREDICATE(<, <); + STRINGPIECE_BINARY_PREDICATE(<=, <); + STRINGPIECE_BINARY_PREDICATE(>=, >); + STRINGPIECE_BINARY_PREDICATE(>, >); +#undef STRINGPIECE_BINARY_PREDICATE + + int compare(const StringPiece& x) const { + int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_); + if (r == 0) { + if (length_ < x.length_) r = -1; + else if (length_ > x.length_) r = +1; + } + return r; + } + + string as_string() const { + return string(data(), size()); + } + + void CopyToString(string* target) const { + target->assign(ptr_, length_); + } + + // Does "this" start with "x" + bool starts_with(const StringPiece& x) const { + return ((length_ >= x.length_) && (memcmp(ptr_, x.ptr_, x.length_) == 0)); + } +}; + +} // namespace pcrecpp + +// ------------------------------------------------------------------ +// Functions used to create STL containers that use StringPiece +// Remember that a StringPiece's lifetime had better be less than +// that of the underlying string or char*. If it is not, then you +// cannot safely store a StringPiece into an STL container +// ------------------------------------------------------------------ + +#ifdef HAVE_TYPE_TRAITS +// This makes vector<StringPiece> really fast for some STL implementations +template<> struct __type_traits<pcrecpp::StringPiece> { + typedef __true_type has_trivial_default_constructor; + typedef __true_type has_trivial_copy_constructor; + typedef __true_type has_trivial_assignment_operator; + typedef __true_type has_trivial_destructor; + typedef __true_type is_POD_type; +}; +#endif + +// allow StringPiece to be logged +PCRECPP_EXP_DECL std::ostream& operator<<(std::ostream& o, + const pcrecpp::StringPiece& piece); + +#endif /* _PCRE_STRINGPIECE_H */ |