| // Copyright 2014 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 _FX_STRING_H_ |
| #define _FX_STRING_H_ |
| |
| #include <stdint.h> // For intptr_t. |
| #include <algorithm> |
| |
| #include "fx_memory.h" |
| #include "fx_system.h" |
| |
| class CFX_BinaryBuf; |
| class CFX_ByteString; |
| class CFX_WideString; |
| struct CFX_CharMap; |
| |
| // An immutable string with caller-provided storage which must outlive the |
| // string itself. |
| class CFX_ByteStringC |
| { |
| public: |
| typedef FX_CHAR value_type; |
| |
| CFX_ByteStringC() |
| { |
| m_Ptr = NULL; |
| m_Length = 0; |
| } |
| |
| CFX_ByteStringC(FX_LPCBYTE ptr, FX_STRSIZE size) |
| { |
| m_Ptr = ptr; |
| m_Length = size; |
| } |
| |
| CFX_ByteStringC(FX_LPCSTR ptr) |
| { |
| m_Ptr = (FX_LPCBYTE)ptr; |
| m_Length = ptr ? FXSYS_strlen(ptr) : 0; |
| } |
| |
| // |ch| must be an lvalue that outlives the the CFX_ByteStringC. However, |
| // the use of char rvalues are not caught at compile time. They are |
| // implicitly promoted to CFX_ByteString (see below) and then the |
| // CFX_ByteStringC is constructed from the CFX_ByteString via the alternate |
| // constructor below. The CFX_ByteString then typically goes out of scope |
| // and |m_Ptr| may be left pointing to invalid memory. Beware. |
| // TODO(tsepez): Mark single-argument string constructors as explicit. |
| CFX_ByteStringC(FX_CHAR& ch) |
| { |
| m_Ptr = (FX_LPCBYTE)&ch; |
| m_Length = 1; |
| } |
| |
| CFX_ByteStringC(FX_LPCSTR ptr, FX_STRSIZE len) |
| { |
| m_Ptr = (FX_LPCBYTE)ptr; |
| m_Length = (len == -1) ? FXSYS_strlen(ptr) : len; |
| } |
| |
| CFX_ByteStringC(const CFX_ByteStringC& src) |
| { |
| m_Ptr = src.m_Ptr; |
| m_Length = src.m_Length; |
| } |
| |
| CFX_ByteStringC(const CFX_ByteString& src); |
| |
| CFX_ByteStringC& operator = (FX_LPCSTR src) |
| { |
| m_Ptr = (FX_LPCBYTE)src; |
| m_Length = m_Ptr ? FXSYS_strlen(src) : 0; |
| return *this; |
| } |
| |
| CFX_ByteStringC& operator = (const CFX_ByteStringC& src) |
| { |
| m_Ptr = src.m_Ptr; |
| m_Length = src.m_Length; |
| return *this; |
| } |
| |
| CFX_ByteStringC& operator = (const CFX_ByteString& src); |
| |
| bool operator== (const char* ptr) const { |
| return FXSYS_strlen(ptr) == m_Length && |
| FXSYS_memcmp32(ptr, m_Ptr, m_Length) == 0; |
| } |
| bool operator== (const CFX_ByteStringC& other) const { |
| return other.m_Length == m_Length && |
| FXSYS_memcmp32(other.m_Ptr, m_Ptr, m_Length) == 0; |
| } |
| bool operator!= (const char* ptr) const { return !(*this == ptr); } |
| bool operator!= (const CFX_ByteStringC& other) const { |
| return !(*this == other); |
| } |
| |
| FX_DWORD GetID(FX_STRSIZE start_pos = 0) const; |
| |
| FX_LPCBYTE GetPtr() const |
| { |
| return m_Ptr; |
| } |
| |
| FX_LPCSTR GetCStr() const |
| { |
| return (FX_LPCSTR)m_Ptr; |
| } |
| |
| FX_STRSIZE GetLength() const |
| { |
| return m_Length; |
| } |
| |
| bool IsEmpty() const |
| { |
| return m_Length == 0; |
| } |
| |
| FX_BYTE GetAt(FX_STRSIZE index) const |
| { |
| return m_Ptr[index]; |
| } |
| |
| CFX_ByteStringC Mid(FX_STRSIZE index, FX_STRSIZE count = -1) const |
| { |
| if (index < 0) { |
| index = 0; |
| } |
| if (index > m_Length) { |
| return CFX_ByteStringC(); |
| } |
| if (count < 0 || count > m_Length - index) { |
| count = m_Length - index; |
| } |
| return CFX_ByteStringC(m_Ptr + index, count); |
| } |
| |
| const FX_BYTE& operator[] (size_t index) const |
| { |
| return m_Ptr[index]; |
| } |
| |
| bool operator< (const CFX_ByteStringC& that) const |
| { |
| int result = memcmp(m_Ptr, that.m_Ptr, std::min(m_Length, that.m_Length)); |
| return result < 0 || (result == 0 && m_Length < that.m_Length); |
| } |
| |
| protected: |
| FX_LPCBYTE m_Ptr; |
| FX_STRSIZE m_Length; |
| |
| private: |
| void* operator new (size_t) throw() |
| { |
| return NULL; |
| } |
| }; |
| inline bool operator== (const char* lhs, const CFX_ByteStringC& rhs) { |
| return rhs == lhs; |
| } |
| inline bool operator!= (const char* lhs, const CFX_ByteStringC& rhs) { |
| return rhs != lhs; |
| } |
| typedef const CFX_ByteStringC& FX_BSTR; |
| #define FX_BSTRC(str) CFX_ByteStringC(str, sizeof str-1) |
| #define FXBSTR_ID(c1, c2, c3, c4) ((c1 << 24) | (c2 << 16) | (c3 << 8) | (c4)) |
| |
| // A mutable string with shared buffers using copy-on-write semantics that |
| // avoids the cost of std::string's iterator stability guarantees. |
| class CFX_ByteString |
| { |
| public: |
| typedef FX_CHAR value_type; |
| |
| CFX_ByteString() |
| { |
| m_pData = NULL; |
| } |
| |
| CFX_ByteString(const CFX_ByteString& str); |
| |
| CFX_ByteString(char ch); |
| |
| CFX_ByteString(FX_LPCSTR ptr) |
| : CFX_ByteString(ptr, ptr ? FXSYS_strlen(ptr) : 0) { } |
| |
| CFX_ByteString(FX_LPCSTR ptr, FX_STRSIZE len); |
| |
| CFX_ByteString(FX_LPCBYTE ptr, FX_STRSIZE len); |
| |
| CFX_ByteString(FX_BSTR bstrc); |
| CFX_ByteString(FX_BSTR bstrc1, FX_BSTR bstrc2); |
| |
| ~CFX_ByteString(); |
| |
| static CFX_ByteString FromUnicode(FX_LPCWSTR ptr, FX_STRSIZE len = -1); |
| |
| static CFX_ByteString FromUnicode(const CFX_WideString& str); |
| |
| // Explicit conversion to raw string |
| FX_LPCSTR c_str() const |
| { |
| return m_pData ? m_pData->m_String : ""; |
| } |
| |
| // Implicit conversion to C-style string -- deprecated |
| operator FX_LPCSTR() const |
| { |
| return m_pData ? m_pData->m_String : ""; |
| } |
| |
| operator FX_LPCBYTE() const |
| { |
| return m_pData ? (FX_LPCBYTE)m_pData->m_String : NULL; |
| } |
| |
| FX_STRSIZE GetLength() const |
| { |
| return m_pData ? m_pData->m_nDataLength : 0; |
| } |
| |
| bool IsEmpty() const |
| { |
| return !GetLength(); |
| } |
| |
| int Compare(FX_BSTR str) const; |
| |
| |
| bool Equal(const char* ptr) const; |
| bool Equal(const CFX_ByteStringC& str) const; |
| bool Equal(const CFX_ByteString& other) const; |
| |
| bool EqualNoCase(FX_BSTR str) const; |
| |
| bool operator== (const char* ptr) const { return Equal(ptr); } |
| bool operator== (const CFX_ByteStringC& str) const { return Equal(str); } |
| bool operator== (const CFX_ByteString& other) const { return Equal(other); } |
| |
| bool operator!= (const char* ptr) const { return !(*this == ptr); } |
| bool operator!= (const CFX_ByteStringC& str) const { |
| return !(*this == str); |
| } |
| bool operator!= (const CFX_ByteString& other) const { |
| return !(*this == other); |
| } |
| |
| bool operator< (const CFX_ByteString& str) const |
| { |
| int result = FXSYS_memcmp32(c_str(), str.c_str(), std::min(GetLength(), str.GetLength())); |
| return result < 0 || (result == 0 && GetLength() < str.GetLength()); |
| } |
| |
| void Empty(); |
| |
| const CFX_ByteString& operator = (FX_LPCSTR str); |
| |
| const CFX_ByteString& operator = (FX_BSTR bstrc); |
| |
| const CFX_ByteString& operator = (const CFX_ByteString& stringSrc); |
| |
| const CFX_ByteString& operator = (const CFX_BinaryBuf& buf); |
| |
| void Load(FX_LPCBYTE str, FX_STRSIZE len); |
| |
| const CFX_ByteString& operator += (FX_CHAR ch); |
| |
| const CFX_ByteString& operator += (FX_LPCSTR str); |
| |
| const CFX_ByteString& operator += (const CFX_ByteString& str); |
| |
| const CFX_ByteString& operator += (FX_BSTR bstrc); |
| |
| FX_BYTE GetAt(FX_STRSIZE nIndex) const |
| { |
| return m_pData ? m_pData->m_String[nIndex] : 0; |
| } |
| |
| FX_BYTE operator[](FX_STRSIZE nIndex) const |
| { |
| return m_pData ? m_pData->m_String[nIndex] : 0; |
| } |
| |
| void SetAt(FX_STRSIZE nIndex, FX_CHAR ch); |
| |
| FX_STRSIZE Insert(FX_STRSIZE index, FX_CHAR ch); |
| |
| FX_STRSIZE Delete(FX_STRSIZE index, FX_STRSIZE count = 1); |
| |
| |
| void Format(FX_LPCSTR lpszFormat, ... ); |
| |
| void FormatV(FX_LPCSTR lpszFormat, va_list argList); |
| |
| |
| void Reserve(FX_STRSIZE len); |
| |
| FX_LPSTR GetBuffer(FX_STRSIZE len); |
| |
| void ReleaseBuffer(FX_STRSIZE len = -1); |
| |
| CFX_ByteString Mid(FX_STRSIZE first) const; |
| |
| CFX_ByteString Mid(FX_STRSIZE first, FX_STRSIZE count) const; |
| |
| CFX_ByteString Left(FX_STRSIZE count) const; |
| |
| CFX_ByteString Right(FX_STRSIZE count) const; |
| |
| FX_STRSIZE Find(FX_BSTR lpszSub, FX_STRSIZE start = 0) const; |
| |
| FX_STRSIZE Find(FX_CHAR ch, FX_STRSIZE start = 0) const; |
| |
| FX_STRSIZE ReverseFind(FX_CHAR ch) const; |
| |
| void MakeLower(); |
| |
| void MakeUpper(); |
| |
| void TrimRight(); |
| |
| void TrimRight(FX_CHAR chTarget); |
| |
| void TrimRight(FX_BSTR lpszTargets); |
| |
| void TrimLeft(); |
| |
| void TrimLeft(FX_CHAR chTarget); |
| |
| void TrimLeft(FX_BSTR lpszTargets); |
| |
| FX_STRSIZE Replace(FX_BSTR lpszOld, FX_BSTR lpszNew); |
| |
| FX_STRSIZE Remove(FX_CHAR ch); |
| |
| CFX_WideString UTF8Decode() const; |
| |
| void ConvertFrom(const CFX_WideString& str, CFX_CharMap* pCharMap = NULL); |
| |
| FX_DWORD GetID(FX_STRSIZE start_pos = 0) const; |
| |
| #define FXFORMAT_SIGNED 1 |
| #define FXFORMAT_HEX 2 |
| #define FXFORMAT_CAPITAL 4 |
| |
| static CFX_ByteString FormatInteger(int i, FX_DWORD flags = 0); |
| static CFX_ByteString FormatFloat(FX_FLOAT f, int precision = 0); |
| |
| protected: |
| // To ensure ref counts do not overflow, consider the worst possible case: |
| // the entire address space contains nothing but pointers to this object. |
| // Since the count increments with each new pointer, the largest value is |
| // the number of pointers that can fit into the address space. The size of |
| // the address space itself is a good upper bound on it; we need not go |
| // larger. |
| class StringData { |
| public: |
| static StringData* Create(int nLen); |
| void Retain() { ++m_nRefs; } |
| void Release() { if (--m_nRefs <= 0) FX_Free(this); } |
| |
| intptr_t m_nRefs; // Would prefer ssize_t, but no windows support. |
| FX_STRSIZE m_nDataLength; |
| FX_STRSIZE m_nAllocLength; |
| FX_CHAR m_String[1]; |
| |
| private: |
| StringData(FX_STRSIZE dataLen, FX_STRSIZE allocLen) |
| : m_nRefs(1), m_nDataLength(dataLen), m_nAllocLength(allocLen) { |
| FXSYS_assert(dataLen >= 0); |
| FXSYS_assert(allocLen >= 0); |
| FXSYS_assert(dataLen <= allocLen); |
| m_String[dataLen] = 0; |
| } |
| ~StringData() = delete; |
| }; |
| |
| void AllocCopy(CFX_ByteString& dest, FX_STRSIZE nCopyLen, FX_STRSIZE nCopyIndex) const; |
| void AssignCopy(FX_STRSIZE nSrcLen, FX_LPCSTR lpszSrcData); |
| void ConcatCopy(FX_STRSIZE nSrc1Len, FX_LPCSTR lpszSrc1Data, FX_STRSIZE nSrc2Len, FX_LPCSTR lpszSrc2Data); |
| void ConcatInPlace(FX_STRSIZE nSrcLen, FX_LPCSTR lpszSrcData); |
| void CopyBeforeWrite(); |
| void AllocBeforeWrite(FX_STRSIZE nLen); |
| |
| StringData* m_pData; |
| }; |
| inline CFX_ByteStringC::CFX_ByteStringC(const CFX_ByteString& src) |
| { |
| m_Ptr = (FX_LPCBYTE)src; |
| m_Length = src.GetLength(); |
| } |
| inline CFX_ByteStringC& CFX_ByteStringC::operator = (const CFX_ByteString& src) |
| { |
| m_Ptr = (FX_LPCBYTE)src; |
| m_Length = src.GetLength(); |
| return *this; |
| } |
| |
| inline bool operator== (const char* lhs, const CFX_ByteString& rhs) { |
| return rhs == lhs; |
| } |
| inline bool operator== (const CFX_ByteStringC& lhs, const CFX_ByteString& rhs) { |
| return rhs == lhs; |
| } |
| inline bool operator!= (const char* lhs, const CFX_ByteString& rhs) { |
| return rhs != lhs; |
| } |
| inline bool operator!= (const CFX_ByteStringC& lhs, const CFX_ByteString& rhs) { |
| return rhs != lhs; |
| } |
| |
| inline CFX_ByteString operator + (FX_BSTR str1, FX_BSTR str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| inline CFX_ByteString operator + (FX_BSTR str1, FX_LPCSTR str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| inline CFX_ByteString operator + (FX_LPCSTR str1, FX_BSTR str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| inline CFX_ByteString operator + (FX_BSTR str1, FX_CHAR ch) |
| { |
| return CFX_ByteString(str1, CFX_ByteStringC(ch)); |
| } |
| inline CFX_ByteString operator + (FX_CHAR ch, FX_BSTR str2) |
| { |
| return CFX_ByteString(ch, str2); |
| } |
| inline CFX_ByteString operator + (const CFX_ByteString& str1, const CFX_ByteString& str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| inline CFX_ByteString operator + (const CFX_ByteString& str1, FX_CHAR ch) |
| { |
| return CFX_ByteString(str1, CFX_ByteStringC(ch)); |
| } |
| inline CFX_ByteString operator + (FX_CHAR ch, const CFX_ByteString& str2) |
| { |
| return CFX_ByteString(ch, str2); |
| } |
| inline CFX_ByteString operator + (const CFX_ByteString& str1, FX_LPCSTR str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| inline CFX_ByteString operator + (FX_LPCSTR str1, const CFX_ByteString& str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| inline CFX_ByteString operator + (const CFX_ByteString& str1, FX_BSTR str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| inline CFX_ByteString operator + (FX_BSTR str1, const CFX_ByteString& str2) |
| { |
| return CFX_ByteString(str1, str2); |
| } |
| class CFX_WideStringC |
| { |
| public: |
| typedef FX_WCHAR value_type; |
| |
| CFX_WideStringC() |
| { |
| m_Ptr = NULL; |
| m_Length = 0; |
| } |
| |
| CFX_WideStringC(FX_LPCWSTR ptr) |
| { |
| m_Ptr = ptr; |
| m_Length = ptr ? FXSYS_wcslen(ptr) : 0; |
| } |
| |
| CFX_WideStringC(FX_WCHAR& ch) |
| { |
| m_Ptr = &ch; |
| m_Length = 1; |
| } |
| |
| CFX_WideStringC(FX_LPCWSTR ptr, FX_STRSIZE len) |
| { |
| m_Ptr = ptr; |
| m_Length = (len == -1) ? FXSYS_wcslen(ptr) : len; |
| } |
| |
| CFX_WideStringC(const CFX_WideStringC& src) |
| { |
| m_Ptr = src.m_Ptr; |
| m_Length = src.m_Length; |
| } |
| |
| CFX_WideStringC(const CFX_WideString& src); |
| |
| CFX_WideStringC& operator = (FX_LPCWSTR src) |
| { |
| m_Ptr = src; |
| m_Length = FXSYS_wcslen(src); |
| return *this; |
| } |
| |
| CFX_WideStringC& operator = (const CFX_WideStringC& src) |
| { |
| m_Ptr = src.m_Ptr; |
| m_Length = src.m_Length; |
| return *this; |
| } |
| |
| CFX_WideStringC& operator = (const CFX_WideString& src); |
| |
| bool operator== (const wchar_t* ptr) const { |
| return FXSYS_wcslen(ptr) == m_Length && |
| wmemcmp(ptr, m_Ptr, m_Length) == 0; |
| } |
| bool operator== (const CFX_WideStringC& str) const { |
| return str.m_Length == m_Length && |
| wmemcmp(str.m_Ptr, m_Ptr, m_Length) == 0; |
| } |
| bool operator!= (const wchar_t* ptr) const { return !(*this == ptr); } |
| bool operator!= (const CFX_WideStringC& str) const { |
| return !(*this == str); |
| } |
| |
| FX_LPCWSTR GetPtr() const |
| { |
| return m_Ptr; |
| } |
| |
| FX_STRSIZE GetLength() const |
| { |
| return m_Length; |
| } |
| |
| bool IsEmpty() const |
| { |
| return m_Length == 0; |
| } |
| |
| FX_WCHAR GetAt(FX_STRSIZE index) const |
| { |
| return m_Ptr[index]; |
| } |
| |
| CFX_WideStringC Left(FX_STRSIZE count) const |
| { |
| if (count < 1) { |
| return CFX_WideStringC(); |
| } |
| if (count > m_Length) { |
| count = m_Length; |
| } |
| return CFX_WideStringC(m_Ptr, count); |
| } |
| |
| CFX_WideStringC Mid(FX_STRSIZE index, FX_STRSIZE count = -1) const |
| { |
| if (index < 0) { |
| index = 0; |
| } |
| if (index > m_Length) { |
| return CFX_WideStringC(); |
| } |
| if (count < 0 || count > m_Length - index) { |
| count = m_Length - index; |
| } |
| return CFX_WideStringC(m_Ptr + index, count); |
| } |
| |
| CFX_WideStringC Right(FX_STRSIZE count) const |
| { |
| if (count < 1) { |
| return CFX_WideStringC(); |
| } |
| if (count > m_Length) { |
| count = m_Length; |
| } |
| return CFX_WideStringC(m_Ptr + m_Length - count, count); |
| } |
| |
| const FX_WCHAR& operator[] (size_t index) const |
| { |
| return m_Ptr[index]; |
| } |
| |
| bool operator< (const CFX_WideStringC& that) const |
| { |
| int result = wmemcmp(m_Ptr, that.m_Ptr, std::min(m_Length, that.m_Length)); |
| return result < 0 || (result == 0 && m_Length < that.m_Length); |
| } |
| |
| protected: |
| FX_LPCWSTR m_Ptr; |
| FX_STRSIZE m_Length; |
| |
| private: |
| void* operator new (size_t) throw() |
| { |
| return NULL; |
| } |
| }; |
| inline bool operator== (const wchar_t* lhs, const CFX_WideStringC& rhs) { |
| return rhs == lhs; |
| } |
| inline bool operator!= (const wchar_t* lhs, const CFX_WideStringC& rhs) { |
| return rhs != lhs; |
| } |
| typedef const CFX_WideStringC& FX_WSTR; |
| #define FX_WSTRC(wstr) CFX_WideStringC(wstr, FX_ArraySize(wstr) - 1) |
| |
| // 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: |
| typedef FX_WCHAR value_type; |
| |
| CFX_WideString() |
| { |
| m_pData = NULL; |
| } |
| |
| CFX_WideString(const CFX_WideString& str); |
| |
| CFX_WideString(FX_LPCWSTR ptr) |
| : CFX_WideString(ptr, ptr ? FXSYS_wcslen(ptr) : 0) { } |
| |
| CFX_WideString(FX_LPCWSTR ptr, FX_STRSIZE len); |
| |
| CFX_WideString(FX_WCHAR ch); |
| |
| CFX_WideString(const CFX_WideStringC& str); |
| |
| CFX_WideString(const CFX_WideStringC& str1, const CFX_WideStringC& str2); |
| |
| ~CFX_WideString(); |
| |
| static CFX_WideString FromLocal(const char* str, FX_STRSIZE len = -1); |
| |
| static CFX_WideString FromUTF8(const char* str, FX_STRSIZE len); |
| |
| static CFX_WideString FromUTF16LE(const unsigned short* str, FX_STRSIZE len); |
| |
| static FX_STRSIZE WStringLength(const unsigned short* str); |
| |
| // Explicit conversion to raw string |
| FX_LPCWSTR c_str() const |
| { |
| return m_pData ? m_pData->m_String : L""; |
| } |
| |
| // Implicit conversion to C-style wide string -- deprecated |
| operator FX_LPCWSTR() const |
| { |
| return m_pData ? m_pData->m_String : L""; |
| } |
| |
| void Empty(); |
| |
| |
| FX_BOOL IsEmpty() const |
| { |
| return !GetLength(); |
| } |
| |
| FX_STRSIZE GetLength() const |
| { |
| return m_pData ? m_pData->m_nDataLength : 0; |
| } |
| |
| const CFX_WideString& operator = (FX_LPCWSTR str); |
| |
| const CFX_WideString& operator =(const CFX_WideString& stringSrc); |
| |
| const CFX_WideString& operator =(const CFX_WideStringC& stringSrc); |
| |
| const CFX_WideString& operator += (FX_LPCWSTR str); |
| |
| const CFX_WideString& operator += (FX_WCHAR ch); |
| |
| const CFX_WideString& operator += (const CFX_WideString& str); |
| |
| const CFX_WideString& operator += (const CFX_WideStringC& str); |
| |
| bool operator== (const wchar_t* ptr) const { return Equal(ptr); } |
| bool operator== (const CFX_WideStringC& str) const { return Equal(str); } |
| bool operator== (const CFX_WideString& other) const { return Equal(other); } |
| |
| 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 { |
| int result = wmemcmp(c_str(), str.c_str(), std::min(GetLength(), str.GetLength())); |
| return result < 0 || (result == 0 && GetLength() < str.GetLength()); |
| } |
| |
| FX_WCHAR GetAt(FX_STRSIZE nIndex) const |
| { |
| return m_pData ? m_pData->m_String[nIndex] : 0; |
| } |
| |
| FX_WCHAR operator[](FX_STRSIZE nIndex) const |
| { |
| return m_pData ? m_pData->m_String[nIndex] : 0; |
| } |
| |
| void SetAt(FX_STRSIZE nIndex, FX_WCHAR ch); |
| |
| int Compare(FX_LPCWSTR str) const; |
| |
| int Compare(const CFX_WideString& str) const; |
| |
| int CompareNoCase(FX_LPCWSTR str) const; |
| |
| bool Equal(const wchar_t* ptr) const; |
| bool Equal(const CFX_WideStringC& str) const; |
| bool Equal(const CFX_WideString& other) const; |
| |
| CFX_WideString Mid(FX_STRSIZE first) 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, FX_WCHAR ch); |
| |
| FX_STRSIZE Delete(FX_STRSIZE index, FX_STRSIZE count = 1); |
| |
| void Format(FX_LPCWSTR lpszFormat, ... ); |
| |
| void FormatV(FX_LPCWSTR lpszFormat, va_list argList); |
| |
| void MakeLower(); |
| |
| void MakeUpper(); |
| |
| void TrimRight(); |
| |
| void TrimRight(FX_WCHAR chTarget); |
| |
| void TrimRight(FX_LPCWSTR lpszTargets); |
| |
| void TrimLeft(); |
| |
| void TrimLeft(FX_WCHAR chTarget); |
| |
| void TrimLeft(FX_LPCWSTR lpszTargets); |
| |
| void Reserve(FX_STRSIZE len); |
| |
| FX_LPWSTR GetBuffer(FX_STRSIZE len); |
| |
| void ReleaseBuffer(FX_STRSIZE len = -1); |
| |
| int GetInteger() const; |
| |
| FX_FLOAT GetFloat() const; |
| |
| FX_STRSIZE Find(FX_LPCWSTR lpszSub, FX_STRSIZE start = 0) const; |
| |
| FX_STRSIZE Find(FX_WCHAR ch, FX_STRSIZE start = 0) const; |
| |
| FX_STRSIZE Replace(FX_LPCWSTR lpszOld, FX_LPCWSTR lpszNew); |
| |
| FX_STRSIZE Remove(FX_WCHAR ch); |
| |
| CFX_ByteString UTF8Encode() const; |
| |
| CFX_ByteString UTF16LE_Encode() const; |
| |
| void ConvertFrom(const CFX_ByteString& str, CFX_CharMap* pCharMap = NULL); |
| |
| protected: |
| class StringData { |
| public: |
| static StringData* Create(int nLen); |
| void Retain() { ++m_nRefs; } |
| void Release() { if (--m_nRefs <= 0) FX_Free(this); } |
| |
| intptr_t m_nRefs; // Would prefer ssize_t, but no windows support. |
| FX_STRSIZE m_nDataLength; |
| FX_STRSIZE m_nAllocLength; |
| FX_WCHAR m_String[1]; |
| |
| private: |
| StringData(FX_STRSIZE dataLen, FX_STRSIZE allocLen) |
| : m_nRefs(1), m_nDataLength(dataLen), m_nAllocLength(allocLen) { |
| FXSYS_assert(dataLen >= 0); |
| FXSYS_assert(allocLen >= 0); |
| FXSYS_assert(dataLen <= allocLen); |
| m_String[dataLen] = 0; |
| } |
| ~StringData() = delete; |
| }; |
| |
| void CopyBeforeWrite(); |
| void AllocBeforeWrite(FX_STRSIZE nLen); |
| void ConcatInPlace(FX_STRSIZE nSrcLen, FX_LPCWSTR lpszSrcData); |
| void ConcatCopy(FX_STRSIZE nSrc1Len, FX_LPCWSTR lpszSrc1Data, FX_STRSIZE nSrc2Len, FX_LPCWSTR lpszSrc2Data); |
| void AssignCopy(FX_STRSIZE nSrcLen, FX_LPCWSTR lpszSrcData); |
| void AllocCopy(CFX_WideString& dest, FX_STRSIZE nCopyLen, FX_STRSIZE nCopyIndex) const; |
| |
| StringData* m_pData; |
| }; |
| inline CFX_WideStringC::CFX_WideStringC(const CFX_WideString& src) |
| { |
| m_Ptr = src.c_str(); |
| m_Length = src.GetLength(); |
| } |
| inline CFX_WideStringC& CFX_WideStringC::operator = (const CFX_WideString& src) |
| { |
| m_Ptr = src.c_str(); |
| m_Length = src.GetLength(); |
| return *this; |
| } |
| |
| 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, FX_LPCWSTR str2) |
| { |
| return CFX_WideString(str1, str2); |
| } |
| inline CFX_WideString operator + (FX_LPCWSTR str1, const CFX_WideStringC& str2) |
| { |
| return CFX_WideString(str1, str2); |
| } |
| inline CFX_WideString operator + (const CFX_WideStringC& str1, FX_WCHAR ch) |
| { |
| return CFX_WideString(str1, CFX_WideStringC(ch)); |
| } |
| inline CFX_WideString operator + (FX_WCHAR 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, str2); |
| } |
| inline CFX_WideString operator + (const CFX_WideString& str1, FX_WCHAR ch) |
| { |
| return CFX_WideString(str1, CFX_WideStringC(ch)); |
| } |
| inline CFX_WideString operator + (FX_WCHAR ch, const CFX_WideString& str2) |
| { |
| return CFX_WideString(ch, str2); |
| } |
| inline CFX_WideString operator + (const CFX_WideString& str1, FX_LPCWSTR str2) |
| { |
| return CFX_WideString(str1, str2); |
| } |
| inline CFX_WideString operator + (FX_LPCWSTR str1, const CFX_WideString& str2) |
| { |
| return CFX_WideString(str1, str2); |
| } |
| inline CFX_WideString operator + (const CFX_WideString& str1, const CFX_WideStringC& str2) |
| { |
| return CFX_WideString(str1, str2); |
| } |
| inline CFX_WideString operator + (const CFX_WideStringC& str1, const CFX_WideString& str2) |
| { |
| return CFX_WideString(str1, str2); |
| } |
| 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; |
| } |
| FX_FLOAT FX_atof(FX_BSTR str); |
| void FX_atonum(FX_BSTR str, FX_BOOL& bInteger, void* pData); |
| FX_STRSIZE FX_ftoa(FX_FLOAT f, FX_LPSTR buf); |
| CFX_ByteString FX_UTF8Encode(FX_LPCWSTR pwsStr, FX_STRSIZE len); |
| inline CFX_ByteString FX_UTF8Encode(FX_WSTR wsStr) |
| { |
| return FX_UTF8Encode(wsStr.GetPtr(), wsStr.GetLength()); |
| } |
| inline CFX_ByteString FX_UTF8Encode(const CFX_WideString &wsStr) |
| { |
| return FX_UTF8Encode(wsStr.c_str(), wsStr.GetLength()); |
| } |
| #endif |
