636 lines
14 KiB
C++
636 lines
14 KiB
C++
// Common/String.h
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#ifndef __COMMON_STRING_H
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#define __COMMON_STRING_H
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#include <string.h>
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// #include <wchar.h>
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#include "MyVector.h"
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#ifdef _WIN32
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#include "MyWindows.h"
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#endif
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template <class T>
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inline int MyStringLen(const T *s)
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{
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int i;
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for (i = 0; s[i] != '\0'; i++);
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return i;
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}
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template <class T>
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inline T * MyStringCopy(T *dest, const T *src)
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{
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T *destStart = dest;
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while((*dest++ = *src++) != 0);
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return destStart;
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}
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inline wchar_t* MyStringGetNextCharPointer(wchar_t *p)
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{ return (p + 1); }
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inline const wchar_t* MyStringGetNextCharPointer(const wchar_t *p)
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{ return (p + 1); }
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inline wchar_t* MyStringGetPrevCharPointer(const wchar_t *, wchar_t *p)
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{ return (p - 1); }
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inline const wchar_t* MyStringGetPrevCharPointer(const wchar_t *, const wchar_t *p)
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{ return (p - 1); }
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#ifdef _WIN32
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inline char* MyStringGetNextCharPointer(char *p)
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{ return CharNextA(p); }
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inline const char* MyStringGetNextCharPointer(const char *p)
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{ return CharNextA(p); }
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inline char* MyStringGetPrevCharPointer(char *base, char *p)
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{ return CharPrevA(base, p); }
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inline const char* MyStringGetPrevCharPointer(const char *base, const char *p)
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{ return CharPrevA(base, p); }
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inline char MyCharUpper(char c)
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{ return (char)(unsigned int)(UINT_PTR)CharUpperA((LPSTR)(UINT_PTR)(unsigned int)(unsigned char)c); }
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#ifdef _UNICODE
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inline wchar_t MyCharUpper(wchar_t c)
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{ return (wchar_t)(unsigned int)(UINT_PTR)CharUpperW((LPWSTR)(UINT_PTR)(unsigned int)c); }
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#else
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wchar_t MyCharUpper(wchar_t c);
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#endif
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inline char MyCharLower(char c)
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{ return (char)(unsigned int)(UINT_PTR)CharLowerA((LPSTR)(UINT_PTR)(unsigned int)(unsigned char)c); }
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#ifdef _UNICODE
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inline wchar_t MyCharLower(wchar_t c)
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{ return (wchar_t)(unsigned int)(UINT_PTR)CharLowerW((LPWSTR)(UINT_PTR)(unsigned int)c); }
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#else
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wchar_t MyCharLower(wchar_t c);
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#endif
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inline char * MyStringUpper(char *s) { return CharUpperA(s); }
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#ifdef _UNICODE
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inline wchar_t * MyStringUpper(wchar_t *s) { return CharUpperW(s); }
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#else
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wchar_t * MyStringUpper(wchar_t *s);
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#endif
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inline char * MyStringLower(char *s) { return CharLowerA(s); }
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#ifdef _UNICODE
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inline wchar_t * MyStringLower(wchar_t *s) { return CharLowerW(s); }
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#else
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wchar_t * MyStringLower(wchar_t *s);
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#endif
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#else // Standard-C
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wchar_t MyCharUpper(wchar_t c);
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#endif
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//////////////////////////////////////
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// Compare
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/*
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#ifndef _WIN32_WCE
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int MyStringCollate(const char *s1, const char *s2);
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int MyStringCollateNoCase(const char *s1, const char *s2);
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#endif
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int MyStringCollate(const wchar_t *s1, const wchar_t *s2);
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int MyStringCollateNoCase(const wchar_t *s1, const wchar_t *s2);
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*/
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int MyStringCompare(const char *s1, const char *s2);
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int MyStringCompare(const wchar_t *s1, const wchar_t *s2);
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#ifdef _WIN32
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int MyStringCompareNoCase(const char *s1, const char *s2);
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#endif
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int MyStringCompareNoCase(const wchar_t *s1, const wchar_t *s2);
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template <class T>
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class CStringBase
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{
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void TrimLeftWithCharSet(const CStringBase &charSet)
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{
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const T *p = _chars;
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while (charSet.Find(*p) >= 0 && (*p != 0))
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p = GetNextCharPointer(p);
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Delete(0, (int)(p - _chars));
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}
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void TrimRightWithCharSet(const CStringBase &charSet)
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{
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const T *p = _chars;
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const T *pLast = NULL;
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while (*p != 0)
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{
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if (charSet.Find(*p) >= 0)
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{
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if (pLast == NULL)
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pLast = p;
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}
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else
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pLast = NULL;
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p = GetNextCharPointer(p);
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}
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if(pLast != NULL)
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{
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int i = (int)(pLast - _chars);
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Delete(i, _length - i);
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}
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}
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void MoveItems(int destIndex, int srcIndex)
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{
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memmove(_chars + destIndex, _chars + srcIndex,
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sizeof(T) * (_length - srcIndex + 1));
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}
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void InsertSpace(int &index, int size)
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{
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CorrectIndex(index);
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GrowLength(size);
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MoveItems(index + size, index);
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}
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static T *GetNextCharPointer(T *p)
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{ return MyStringGetNextCharPointer(p); }
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static const T *GetNextCharPointer(const T *p)
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{ return MyStringGetNextCharPointer(p); }
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static T *GetPrevCharPointer(T *base, T *p)
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{ return MyStringGetPrevCharPointer(base, p); }
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static const T *GetPrevCharPointer(const T *base, const T *p)
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{ return MyStringGetPrevCharPointer(base, p); }
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protected:
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T *_chars;
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int _length;
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int _capacity;
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void SetCapacity(int newCapacity)
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{
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int realCapacity = newCapacity + 1;
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if(realCapacity == _capacity)
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return;
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/*
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const int kMaxStringSize = 0x20000000;
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#ifndef _WIN32_WCE
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if(newCapacity > kMaxStringSize || newCapacity < _length)
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throw 1052337;
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#endif
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*/
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T *newBuffer = new T[realCapacity];
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if(_capacity > 0)
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{
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for (int i = 0; i < (_length + 1); i++)
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newBuffer[i] = _chars[i];
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delete []_chars;
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_chars = newBuffer;
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}
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else
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{
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_chars = newBuffer;
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_chars[0] = 0;
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}
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_capacity = realCapacity;
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}
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void GrowLength(int n)
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{
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int freeSize = _capacity - _length - 1;
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if (n <= freeSize)
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return;
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int delta;
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if (_capacity > 64)
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delta = _capacity / 2;
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else if (_capacity > 8)
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delta = 16;
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else
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delta = 4;
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if (freeSize + delta < n)
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delta = n - freeSize;
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SetCapacity(_capacity + delta);
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}
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void CorrectIndex(int &index) const
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{
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if (index > _length)
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index = _length;
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}
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public:
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CStringBase(): _chars(0), _length(0), _capacity(0)
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{ SetCapacity(16 - 1); }
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CStringBase(T c): _chars(0), _length(0), _capacity(0)
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{
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SetCapacity(1);
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_chars[0] = c;
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_chars[1] = 0;
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_length = 1;
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}
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CStringBase(const T *chars): _chars(0), _length(0), _capacity(0)
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{
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int length = MyStringLen(chars);
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SetCapacity(length);
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MyStringCopy(_chars, chars); // can be optimized by memove()
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_length = length;
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}
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CStringBase(const CStringBase &s): _chars(0), _length(0), _capacity(0)
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{
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SetCapacity(s._length);
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MyStringCopy(_chars, s._chars);
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_length = s._length;
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}
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~CStringBase() { delete []_chars; }
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operator const T*() const { return _chars;}
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// The minimum size of the character buffer in characters.
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// This value does not include space for a null terminator.
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T* GetBuffer(int minBufLength)
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{
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if(minBufLength >= _capacity)
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SetCapacity(minBufLength + 1);
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return _chars;
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}
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void ReleaseBuffer() { ReleaseBuffer(MyStringLen(_chars)); }
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void ReleaseBuffer(int newLength)
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{
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/*
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#ifndef _WIN32_WCE
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if(newLength >= _capacity)
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throw 282217;
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#endif
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*/
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_chars[newLength] = 0;
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_length = newLength;
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}
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CStringBase& operator=(T c)
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{
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Empty();
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SetCapacity(1);
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_chars[0] = c;
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_chars[1] = 0;
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_length = 1;
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return *this;
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}
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CStringBase& operator=(const T *chars)
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{
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Empty();
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int length = MyStringLen(chars);
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SetCapacity(length);
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MyStringCopy(_chars, chars);
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_length = length;
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return *this;
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}
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CStringBase& operator=(const CStringBase& s)
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{
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if(&s == this)
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return *this;
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Empty();
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SetCapacity(s._length);
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MyStringCopy(_chars, s._chars);
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_length = s._length;
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return *this;
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}
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CStringBase& operator+=(T c)
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{
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GrowLength(1);
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_chars[_length] = c;
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_chars[++_length] = 0;
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return *this;
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}
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CStringBase& operator+=(const T *s)
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{
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int len = MyStringLen(s);
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GrowLength(len);
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MyStringCopy(_chars + _length, s);
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_length += len;
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return *this;
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}
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CStringBase& operator+=(const CStringBase &s)
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{
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GrowLength(s._length);
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MyStringCopy(_chars + _length, s._chars);
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_length += s._length;
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return *this;
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}
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void Empty()
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{
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_length = 0;
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_chars[0] = 0;
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}
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int Length() const { return _length; }
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bool IsEmpty() const { return (_length == 0); }
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CStringBase Mid(int startIndex) const
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{ return Mid(startIndex, _length - startIndex); }
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CStringBase Mid(int startIndex, int count ) const
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{
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if (startIndex + count > _length)
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count = _length - startIndex;
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if (startIndex == 0 && startIndex + count == _length)
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return *this;
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CStringBase<T> result;
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result.SetCapacity(count);
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// MyStringNCopy(result._chars, _chars + startIndex, count);
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for (int i = 0; i < count; i++)
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result._chars[i] = _chars[startIndex + i];
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result._chars[count] = 0;
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result._length = count;
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return result;
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}
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CStringBase Left(int count) const
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{ return Mid(0, count); }
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CStringBase Right(int count) const
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{
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if (count > _length)
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count = _length;
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return Mid(_length - count, count);
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}
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void MakeUpper()
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{ MyStringUpper(_chars); }
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void MakeLower()
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{ MyStringLower(_chars); }
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int Compare(const CStringBase& s) const
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{ return MyStringCompare(_chars, s._chars); }
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int Compare(const T *s) const
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{ return MyStringCompare(_chars, s); }
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int CompareNoCase(const CStringBase& s) const
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{ return MyStringCompareNoCase(_chars, s._chars); }
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int CompareNoCase(const T *s) const
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{ return MyStringCompareNoCase(_chars, s); }
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/*
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int Collate(const CStringBase& s) const
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{ return MyStringCollate(_chars, s._chars); }
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int CollateNoCase(const CStringBase& s) const
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{ return MyStringCollateNoCase(_chars, s._chars); }
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*/
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int Find(T c) const { return Find(c, 0); }
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int Find(T c, int startIndex) const
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{
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T *p = _chars + startIndex;
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for (;;)
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{
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if (*p == c)
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return (int)(p - _chars);
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if (*p == 0)
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return -1;
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p = GetNextCharPointer(p);
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}
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}
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int Find(const CStringBase &s) const { return Find(s, 0); }
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int Find(const CStringBase &s, int startIndex) const
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{
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if (s.IsEmpty())
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return startIndex;
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for (; startIndex < _length; startIndex++)
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{
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int j;
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for (j = 0; j < s._length && startIndex + j < _length; j++)
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if (_chars[startIndex+j] != s._chars[j])
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break;
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if (j == s._length)
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return startIndex;
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}
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return -1;
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}
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int ReverseFind(T c) const
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{
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if (_length == 0)
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return -1;
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T *p = _chars + _length - 1;
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for (;;)
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{
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if (*p == c)
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return (int)(p - _chars);
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if (p == _chars)
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return -1;
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p = GetPrevCharPointer(_chars, p);
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}
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}
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int FindOneOf(const CStringBase &s) const
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{
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for(int i = 0; i < _length; i++)
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if (s.Find(_chars[i]) >= 0)
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return i;
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return -1;
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}
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void TrimLeft(T c)
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{
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const T *p = _chars;
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while (c == *p)
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p = GetNextCharPointer(p);
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Delete(0, p - _chars);
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}
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private:
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CStringBase GetTrimDefaultCharSet()
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{
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CStringBase<T> charSet;
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charSet += (T)' ';
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charSet += (T)'\n';
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charSet += (T)'\t';
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return charSet;
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}
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public:
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void TrimLeft()
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{
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TrimLeftWithCharSet(GetTrimDefaultCharSet());
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}
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void TrimRight()
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{
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TrimRightWithCharSet(GetTrimDefaultCharSet());
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}
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void TrimRight(T c)
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{
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const T *p = _chars;
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const T *pLast = NULL;
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while (*p != 0)
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{
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if (*p == c)
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{
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if (pLast == NULL)
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pLast = p;
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}
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else
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pLast = NULL;
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p = GetNextCharPointer(p);
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}
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if(pLast != NULL)
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{
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int i = pLast - _chars;
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Delete(i, _length - i);
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}
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}
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void Trim()
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{
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TrimRight();
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TrimLeft();
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}
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int Insert(int index, T c)
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{
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InsertSpace(index, 1);
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_chars[index] = c;
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_length++;
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return _length;
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}
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int Insert(int index, const CStringBase &s)
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{
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CorrectIndex(index);
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if (s.IsEmpty())
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return _length;
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int numInsertChars = s.Length();
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InsertSpace(index, numInsertChars);
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for(int i = 0; i < numInsertChars; i++)
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_chars[index + i] = s[i];
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_length += numInsertChars;
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return _length;
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}
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// !!!!!!!!!!!!!!! test it if newChar = '\0'
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int Replace(T oldChar, T newChar)
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{
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if (oldChar == newChar)
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return 0;
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int number = 0;
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int pos = 0;
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while (pos < Length())
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{
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pos = Find(oldChar, pos);
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if (pos < 0)
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break;
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_chars[pos] = newChar;
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pos++;
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number++;
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}
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return number;
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}
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int Replace(const CStringBase &oldString, const CStringBase &newString)
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{
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if (oldString.IsEmpty())
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return 0;
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if (oldString == newString)
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return 0;
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int oldStringLength = oldString.Length();
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int newStringLength = newString.Length();
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int number = 0;
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int pos = 0;
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while (pos < _length)
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{
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pos = Find(oldString, pos);
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if (pos < 0)
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break;
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Delete(pos, oldStringLength);
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Insert(pos, newString);
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pos += newStringLength;
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number++;
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}
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return number;
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}
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int Delete(int index, int count = 1 )
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{
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if (index + count > _length)
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count = _length - index;
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if (count > 0)
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{
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MoveItems(index, index + count);
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_length -= count;
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}
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return _length;
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}
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};
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template <class T>
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CStringBase<T> operator+(const CStringBase<T>& s1, const CStringBase<T>& s2)
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{
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CStringBase<T> result(s1);
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result += s2;
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return result;
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}
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template <class T>
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CStringBase<T> operator+(const CStringBase<T>& s, T c)
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{
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CStringBase<T> result(s);
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result += c;
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return result;
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|
}
|
|
|
|
template <class T>
|
|
CStringBase<T> operator+(T c, const CStringBase<T>& s)
|
|
{
|
|
CStringBase<T> result(c);
|
|
result += s;
|
|
return result;
|
|
}
|
|
|
|
template <class T>
|
|
CStringBase<T> operator+(const CStringBase<T>& s, const T * chars)
|
|
{
|
|
CStringBase<T> result(s);
|
|
result += chars;
|
|
return result;
|
|
}
|
|
|
|
template <class T>
|
|
CStringBase<T> operator+(const T * chars, const CStringBase<T>& s)
|
|
{
|
|
CStringBase<T> result(chars);
|
|
result += s;
|
|
return result;
|
|
}
|
|
|
|
template <class T>
|
|
bool operator==(const CStringBase<T>& s1, const CStringBase<T>& s2)
|
|
{ return (s1.Compare(s2) == 0); }
|
|
|
|
template <class T>
|
|
bool operator<(const CStringBase<T>& s1, const CStringBase<T>& s2)
|
|
{ return (s1.Compare(s2) < 0); }
|
|
|
|
template <class T>
|
|
bool operator==(const T *s1, const CStringBase<T>& s2)
|
|
{ return (s2.Compare(s1) == 0); }
|
|
|
|
template <class T>
|
|
bool operator==(const CStringBase<T>& s1, const T *s2)
|
|
{ return (s1.Compare(s2) == 0); }
|
|
|
|
template <class T>
|
|
bool operator!=(const CStringBase<T>& s1, const CStringBase<T>& s2)
|
|
{ return (s1.Compare(s2) != 0); }
|
|
|
|
template <class T>
|
|
bool operator!=(const T *s1, const CStringBase<T>& s2)
|
|
{ return (s2.Compare(s1) != 0); }
|
|
|
|
template <class T>
|
|
bool operator!=(const CStringBase<T>& s1, const T *s2)
|
|
{ return (s1.Compare(s2) != 0); }
|
|
|
|
typedef CStringBase<char> AString;
|
|
typedef CStringBase<wchar_t> UString;
|
|
|
|
typedef CObjectVector<AString> AStringVector;
|
|
typedef CObjectVector<UString> UStringVector;
|
|
|
|
#ifdef _UNICODE
|
|
typedef UString CSysString;
|
|
#else
|
|
typedef AString CSysString;
|
|
#endif
|
|
|
|
typedef CObjectVector<CSysString> CSysStringVector;
|
|
|
|
#endif
|