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Diffstat (limited to 'core/fxcrt/cfx_widestring.h')
| -rw-r--r-- | core/fxcrt/cfx_widestring.h | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/core/fxcrt/cfx_widestring.h b/core/fxcrt/cfx_widestring.h deleted file mode 100644 index 595615a0b2..0000000000 --- a/core/fxcrt/cfx_widestring.h +++ /dev/null @@ -1,276 +0,0 @@ -// Copyright 2017 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#ifndef CORE_FXCRT_CFX_WIDESTRING_H_ -#define CORE_FXCRT_CFX_WIDESTRING_H_ - -#include <functional> -#include <iterator> -#include <utility> - -#include "core/fxcrt/cfx_retain_ptr.h" -#include "core/fxcrt/cfx_string_c_template.h" -#include "core/fxcrt/cfx_string_data_template.h" -#include "core/fxcrt/fx_memory.h" -#include "core/fxcrt/fx_system.h" -#include "third_party/base/optional.h" - -class CFX_ByteString; - -// A mutable string with shared buffers using copy-on-write semantics that -// avoids the cost of std::string's iterator stability guarantees. -class CFX_WideString { - public: - using CharType = wchar_t; - using const_iterator = const CharType*; - using const_reverse_iterator = std::reverse_iterator<const_iterator>; - - CFX_WideString(); - CFX_WideString(const CFX_WideString& other); - CFX_WideString(CFX_WideString&& other) noexcept; - - // Deliberately implicit to avoid calling on every string literal. - // NOLINTNEXTLINE(runtime/explicit) - CFX_WideString(wchar_t ch); - // NOLINTNEXTLINE(runtime/explicit) - CFX_WideString(const wchar_t* ptr); - - // No implicit conversions from byte strings. - // NOLINTNEXTLINE(runtime/explicit) - CFX_WideString(char) = delete; - - CFX_WideString(const wchar_t* ptr, FX_STRSIZE len); - - explicit CFX_WideString(const CFX_WideStringC& str); - CFX_WideString(const CFX_WideStringC& str1, const CFX_WideStringC& str2); - CFX_WideString(const std::initializer_list<CFX_WideStringC>& list); - - ~CFX_WideString(); - - static CFX_WideString FromLocal(const CFX_ByteStringC& str); - static CFX_WideString FromCodePage(const CFX_ByteStringC& str, - uint16_t codepage); - - static CFX_WideString FromUTF8(const CFX_ByteStringC& str); - static CFX_WideString FromUTF16LE(const unsigned short* str, FX_STRSIZE len); - - static FX_STRSIZE WStringLength(const unsigned short* str); - - // Explicit conversion to C-style wide string. - // Note: Any subsequent modification of |this| will invalidate the result. - const wchar_t* c_str() const { return m_pData ? m_pData->m_String : L""; } - - // Explicit conversion to CFX_WideStringC. - // Note: Any subsequent modification of |this| will invalidate the result. - CFX_WideStringC AsStringC() const { - return CFX_WideStringC(c_str(), GetLength()); - } - - // Note: Any subsequent modification of |this| will invalidate iterators. - const_iterator begin() const { return m_pData ? m_pData->m_String : nullptr; } - const_iterator end() const { - return m_pData ? m_pData->m_String + m_pData->m_nDataLength : nullptr; - } - - // Note: Any subsequent modification of |this| will invalidate iterators. - const_reverse_iterator rbegin() const { - return const_reverse_iterator(end()); - } - const_reverse_iterator rend() const { - return const_reverse_iterator(begin()); - } - - void clear() { m_pData.Reset(); } - - FX_STRSIZE GetLength() const { return m_pData ? m_pData->m_nDataLength : 0; } - FX_STRSIZE GetStringLength() const { - return m_pData ? FXSYS_wcslen(m_pData->m_String) : 0; - } - bool IsEmpty() const { return !GetLength(); } - bool IsValidIndex(FX_STRSIZE index) const { return index < GetLength(); } - bool IsValidLength(FX_STRSIZE length) const { return length <= GetLength(); } - - const CFX_WideString& operator=(const wchar_t* str); - const CFX_WideString& operator=(const CFX_WideString& stringSrc); - const CFX_WideString& operator=(const CFX_WideStringC& stringSrc); - - const CFX_WideString& operator+=(const wchar_t* str); - const CFX_WideString& operator+=(wchar_t ch); - const CFX_WideString& operator+=(const CFX_WideString& str); - const CFX_WideString& operator+=(const CFX_WideStringC& str); - - bool operator==(const wchar_t* ptr) const; - bool operator==(const CFX_WideStringC& str) const; - bool operator==(const CFX_WideString& other) const; - - bool operator!=(const wchar_t* ptr) const { return !(*this == ptr); } - bool operator!=(const CFX_WideStringC& str) const { return !(*this == str); } - bool operator!=(const CFX_WideString& other) const { - return !(*this == other); - } - - bool operator<(const CFX_WideString& str) const; - - CharType operator[](const FX_STRSIZE index) const { - ASSERT(IsValidIndex(index)); - return m_pData ? m_pData->m_String[index] : 0; - } - - CharType First() const { return GetLength() ? (*this)[0] : 0; } - CharType Last() const { return GetLength() ? (*this)[GetLength() - 1] : 0; } - - void SetAt(FX_STRSIZE index, wchar_t c); - - int Compare(const wchar_t* str) const; - int Compare(const CFX_WideString& str) const; - int CompareNoCase(const wchar_t* str) const; - - CFX_WideString Mid(FX_STRSIZE first, FX_STRSIZE count) const; - CFX_WideString Left(FX_STRSIZE count) const; - CFX_WideString Right(FX_STRSIZE count) const; - - FX_STRSIZE Insert(FX_STRSIZE index, wchar_t ch); - FX_STRSIZE InsertAtFront(wchar_t ch) { return Insert(0, ch); } - FX_STRSIZE InsertAtBack(wchar_t ch) { return Insert(GetLength(), ch); } - FX_STRSIZE Delete(FX_STRSIZE index, FX_STRSIZE count = 1); - - void Format(const wchar_t* lpszFormat, ...); - void FormatV(const wchar_t* lpszFormat, va_list argList); - - void MakeLower(); - void MakeUpper(); - - void TrimRight(); - void TrimRight(wchar_t chTarget); - void TrimRight(const CFX_WideStringC& pTargets); - - void TrimLeft(); - void TrimLeft(wchar_t chTarget); - void TrimLeft(const CFX_WideStringC& pTargets); - - void Reserve(FX_STRSIZE len); - wchar_t* GetBuffer(FX_STRSIZE len); - void ReleaseBuffer(FX_STRSIZE len); - - int GetInteger() const; - float GetFloat() const; - - pdfium::Optional<FX_STRSIZE> Find(const CFX_WideStringC& pSub, - FX_STRSIZE start = 0) const; - pdfium::Optional<FX_STRSIZE> Find(wchar_t ch, FX_STRSIZE start = 0) const; - - bool Contains(const CFX_WideStringC& lpszSub, FX_STRSIZE start = 0) const { - return Find(lpszSub, start).has_value(); - } - - bool Contains(char ch, FX_STRSIZE start = 0) const { - return Find(ch, start).has_value(); - } - - FX_STRSIZE Replace(const CFX_WideStringC& pOld, const CFX_WideStringC& pNew); - FX_STRSIZE Remove(wchar_t ch); - - CFX_ByteString UTF8Encode() const; - CFX_ByteString UTF16LE_Encode() const; - - protected: - using StringData = CFX_StringDataTemplate<wchar_t>; - - void ReallocBeforeWrite(FX_STRSIZE nLen); - void AllocBeforeWrite(FX_STRSIZE nLen); - void AllocCopy(CFX_WideString& dest, - FX_STRSIZE nCopyLen, - FX_STRSIZE nCopyIndex) const; - void AssignCopy(const wchar_t* pSrcData, FX_STRSIZE nSrcLen); - void Concat(const wchar_t* lpszSrcData, FX_STRSIZE nSrcLen); - - // Returns true unless we ran out of space. - bool TryVSWPrintf(FX_STRSIZE size, const wchar_t* format, va_list argList); - - CFX_RetainPtr<StringData> m_pData; - - friend class fxcrt_WideStringConcatInPlace_Test; - friend class fxcrt_WideStringPool_Test; -}; - -inline CFX_WideString operator+(const CFX_WideStringC& str1, - const CFX_WideStringC& str2) { - return CFX_WideString(str1, str2); -} -inline CFX_WideString operator+(const CFX_WideStringC& str1, - const wchar_t* str2) { - return CFX_WideString(str1, str2); -} -inline CFX_WideString operator+(const wchar_t* str1, - const CFX_WideStringC& str2) { - return CFX_WideString(str1, str2); -} -inline CFX_WideString operator+(const CFX_WideStringC& str1, wchar_t ch) { - return CFX_WideString(str1, CFX_WideStringC(ch)); -} -inline CFX_WideString operator+(wchar_t ch, const CFX_WideStringC& str2) { - return CFX_WideString(ch, str2); -} -inline CFX_WideString operator+(const CFX_WideString& str1, - const CFX_WideString& str2) { - return CFX_WideString(str1.AsStringC(), str2.AsStringC()); -} -inline CFX_WideString operator+(const CFX_WideString& str1, wchar_t ch) { - return CFX_WideString(str1.AsStringC(), CFX_WideStringC(ch)); -} -inline CFX_WideString operator+(wchar_t ch, const CFX_WideString& str2) { - return CFX_WideString(ch, str2.AsStringC()); -} -inline CFX_WideString operator+(const CFX_WideString& str1, - const wchar_t* str2) { - return CFX_WideString(str1.AsStringC(), str2); -} -inline CFX_WideString operator+(const wchar_t* str1, - const CFX_WideString& str2) { - return CFX_WideString(str1, str2.AsStringC()); -} -inline CFX_WideString operator+(const CFX_WideString& str1, - const CFX_WideStringC& str2) { - return CFX_WideString(str1.AsStringC(), str2); -} -inline CFX_WideString operator+(const CFX_WideStringC& str1, - const CFX_WideString& str2) { - return CFX_WideString(str1, str2.AsStringC()); -} -inline bool operator==(const wchar_t* lhs, const CFX_WideString& rhs) { - return rhs == lhs; -} -inline bool operator==(const CFX_WideStringC& lhs, const CFX_WideString& rhs) { - return rhs == lhs; -} -inline bool operator!=(const wchar_t* lhs, const CFX_WideString& rhs) { - return rhs != lhs; -} -inline bool operator!=(const CFX_WideStringC& lhs, const CFX_WideString& rhs) { - return rhs != lhs; -} - -uint32_t FX_HashCode_GetW(const CFX_WideStringC& str, bool bIgnoreCase); - -std::wostream& operator<<(std::wostream& os, const CFX_WideString& str); -std::ostream& operator<<(std::ostream& os, const CFX_WideString& str); -std::wostream& operator<<(std::wostream& os, const CFX_WideStringC& str); -std::ostream& operator<<(std::ostream& os, const CFX_WideStringC& str); - -namespace std { - -template <> -struct hash<CFX_WideString> { - std::size_t operator()(const CFX_WideString& str) const { - return FX_HashCode_GetW(str.AsStringC(), false); - } -}; - -} // namespace std - -extern template struct std::hash<CFX_WideString>; - -#endif // CORE_FXCRT_CFX_WIDESTRING_H_ |