mirror of
https://github.com/ONLYOFFICE/core.git
synced 2026-07-11 01:11:43 +08:00
794 lines
19 KiB
C++
794 lines
19 KiB
C++
/*
|
||
* (c) Copyright Ascensio System SIA 2010-2016
|
||
*
|
||
* This program is a free software product. You can redistribute it and/or
|
||
* modify it under the terms of the GNU Affero General Public License (AGPL)
|
||
* version 3 as published by the Free Software Foundation. In accordance with
|
||
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
|
||
* that Ascensio System SIA expressly excludes the warranty of non-infringement
|
||
* of any third-party rights.
|
||
*
|
||
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
|
||
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
|
||
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
|
||
*
|
||
* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
|
||
* EU, LV-1021.
|
||
*
|
||
* The interactive user interfaces in modified source and object code versions
|
||
* of the Program must display Appropriate Legal Notices, as required under
|
||
* Section 5 of the GNU AGPL version 3.
|
||
*
|
||
* Pursuant to Section 7(b) of the License you must retain the original Product
|
||
* logo when distributing the program. Pursuant to Section 7(e) we decline to
|
||
* grant you any rights under trademark law for use of our trademarks.
|
||
*
|
||
* All the Product's GUI elements, including illustrations and icon sets, as
|
||
* well as technical writing content are licensed under the terms of the
|
||
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
|
||
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
|
||
*
|
||
*/
|
||
#include <stdlib.h>
|
||
#include <stddef.h>
|
||
#include <string.h>
|
||
#include <ctype.h>
|
||
#include <math.h>
|
||
#include "MemoryUtils.h"
|
||
#include "StringExt.h"
|
||
|
||
namespace PdfReader
|
||
{
|
||
union StringExtFormatArg
|
||
{
|
||
int iValue;
|
||
unsigned int uiValue;
|
||
long lValue;
|
||
unsigned long ulValue;
|
||
double fValue;
|
||
char cValue;
|
||
char *sValue;
|
||
StringExt *seValue;
|
||
};
|
||
|
||
enum StringExtFormatType
|
||
{
|
||
fmtIntDecimal,
|
||
fmtIntHex,
|
||
fmtIntOctal,
|
||
fmtIntBinary,
|
||
fmtUIntDecimal,
|
||
fmtUIntHex,
|
||
fmtUIntOctal,
|
||
fmtUIntBinary,
|
||
fmtLongDecimal,
|
||
fmtLongHex,
|
||
fmtLongOctal,
|
||
fmtLongBinary,
|
||
fmtULongDecimal,
|
||
fmtULongHex,
|
||
fmtULongOctal,
|
||
fmtULongBinary,
|
||
fmtDouble,
|
||
fmtDoubleTrim,
|
||
fmtChar,
|
||
fmtString,
|
||
fmtStringExt,
|
||
fmtSpace
|
||
};
|
||
|
||
static char *c_arrsFormatStrings[] =
|
||
{
|
||
"d", "x", "o", "b", "ud", "ux", "uo", "ub",
|
||
"ld", "lx", "lo", "lb", "uld", "ulx", "ulo", "ulb",
|
||
"f", "g",
|
||
"c",
|
||
"s",
|
||
"t",
|
||
"w",
|
||
NULL
|
||
};
|
||
|
||
//------------------------------------------------------------------------
|
||
|
||
static inline int Size(int nLen)
|
||
{
|
||
int nDelta;
|
||
for (nDelta = 8; nDelta < nLen && nDelta < 0x100000; nDelta <<= 1);
|
||
// ((nLen + 1) + (delta - 1)) & ~(delta - 1)
|
||
return (nLen + nDelta) & ~(nDelta - 1);
|
||
}
|
||
|
||
inline void StringExt::Resize(int nLength)
|
||
{
|
||
char *sTemp = NULL;
|
||
|
||
if (!m_sData)
|
||
m_sData = new char[Size(nLength)];
|
||
else if (Size(nLength) != Size(m_nLength))
|
||
{
|
||
sTemp = new char[Size(nLength)];
|
||
if (nLength < m_nLength)
|
||
{
|
||
memcpy(sTemp, m_sData, nLength);
|
||
sTemp[nLength] = '\0';
|
||
}
|
||
else
|
||
memcpy(sTemp, m_sData, m_nLength + 1);
|
||
delete[] m_sData;
|
||
m_sData = sTemp;
|
||
}
|
||
}
|
||
|
||
StringExt::StringExt()
|
||
{
|
||
m_sData = NULL;
|
||
Resize(m_nLength = 0);
|
||
m_sData[0] = '\0';
|
||
}
|
||
|
||
StringExt::StringExt(std::wstring& wsString)
|
||
{
|
||
int nLen = wsString.length();
|
||
|
||
m_sData = NULL;
|
||
Resize(m_nLength = nLen);
|
||
for (int nPos = 0; nPos < nLen; nPos++)
|
||
{
|
||
m_sData[nPos] = (unsigned char)wsString.at(nPos);
|
||
}
|
||
}
|
||
|
||
StringExt::StringExt(const wchar_t* _wsString)
|
||
{
|
||
std::wstring wsString(_wsString);
|
||
int nLen = wsString.length();
|
||
|
||
m_sData = NULL;
|
||
Resize(m_nLength = nLen);
|
||
for (int nPos = 0; nPos < nLen; nPos++)
|
||
{
|
||
m_sData[nPos] = (unsigned char)wsString.at(nPos);
|
||
}
|
||
}
|
||
|
||
StringExt::StringExt(const char *sSrc)
|
||
{
|
||
int nLen = strlen(sSrc);
|
||
|
||
m_sData = NULL;
|
||
Resize(m_nLength = nLen);
|
||
memcpy(m_sData, sSrc, nLen + 1);
|
||
}
|
||
|
||
StringExt::StringExt(const char *sSrc, int nLength)
|
||
{
|
||
m_sData = NULL;
|
||
Resize(m_nLength = nLength);
|
||
memcpy(m_sData, sSrc, m_nLength * sizeof(char));
|
||
m_sData[m_nLength] = '\0';
|
||
}
|
||
|
||
StringExt::StringExt(StringExt *seSrc, int nIndex, int nLength)
|
||
{
|
||
m_sData = NULL;
|
||
Resize(m_nLength = nLength);
|
||
memcpy(m_sData, seSrc->GetBuffer() + nIndex, m_nLength);
|
||
m_sData[m_nLength] = '\0';
|
||
}
|
||
|
||
StringExt::StringExt(StringExt *seSrc)
|
||
{
|
||
m_sData = NULL;
|
||
Resize(m_nLength = seSrc->GetLength());
|
||
memcpy(m_sData, seSrc->GetBuffer(), m_nLength + 1);
|
||
}
|
||
|
||
StringExt::StringExt(StringExt *seString1, StringExt *seString2)
|
||
{
|
||
int nLen1 = seString1->GetLength();
|
||
int nLen2 = seString2->GetLength();
|
||
|
||
m_sData = NULL;
|
||
Resize(m_nLength = nLen1 + nLen2);
|
||
memcpy(m_sData, seString1->GetBuffer(), nLen1);
|
||
memcpy(m_sData + nLen1, seString2->GetBuffer(), nLen2 + 1);
|
||
}
|
||
|
||
StringExt *StringExt::FromInt(int nValue)
|
||
{
|
||
char sBuffer[24];
|
||
char *pData = NULL;
|
||
int nLen;
|
||
|
||
FormatInt(nValue, sBuffer, sizeof(sBuffer), false, 0, 10, &pData, &nLen);
|
||
return new StringExt(pData, nLen);
|
||
}
|
||
|
||
StringExt *StringExt::Format(char *sFormat, ...)
|
||
{
|
||
va_list sArgList;
|
||
StringExt *seResult = new StringExt();
|
||
va_start(sArgList, sFormat);
|
||
seResult->AppendFormatV(sFormat, sArgList);
|
||
va_end(sArgList);
|
||
return seResult;
|
||
}
|
||
|
||
StringExt *StringExt::FormatV(char *sFormat, va_list sArgList)
|
||
{
|
||
StringExt *seResult = new StringExt();
|
||
seResult->AppendFormatV(sFormat, sArgList);
|
||
return seResult;
|
||
}
|
||
|
||
StringExt::~StringExt()
|
||
{
|
||
delete[] m_sData;
|
||
}
|
||
|
||
StringExt *StringExt::Clear()
|
||
{
|
||
m_sData[m_nLength = 0] = '\0';
|
||
Resize(0);
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Append(char nChar)
|
||
{
|
||
Resize(m_nLength + 1);
|
||
m_sData[m_nLength++] = nChar;
|
||
m_sData[m_nLength] = '\0';
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Append(StringExt *seString)
|
||
{
|
||
int nLen = seString->GetLength();
|
||
|
||
Resize(m_nLength + nLen);
|
||
memcpy(m_sData + m_nLength, seString->GetBuffer(), nLen + 1);
|
||
m_nLength += nLen;
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Append(const char *sString)
|
||
{
|
||
int nLen = strlen(sString);
|
||
|
||
Resize(m_nLength + nLen);
|
||
memcpy(m_sData + m_nLength, sString, nLen + 1);
|
||
m_nLength += nLen;
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Append(const char *sString, int nLength)
|
||
{
|
||
Resize(m_nLength + nLength);
|
||
memcpy(m_sData + m_nLength, sString, nLength);
|
||
m_nLength += nLength;
|
||
m_sData[m_nLength] = '\0';
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::AppendFormat(char *sFormat, ...)
|
||
{
|
||
va_list sArgList;
|
||
va_start(sArgList, sFormat);
|
||
AppendFormatV(sFormat, sArgList);
|
||
va_end(sArgList);
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::AppendFormatV(char *sFormat, va_list sArgList)
|
||
{
|
||
StringExtFormatArg uArg;
|
||
int nIndex, nWidth, nPrecision;
|
||
bool bReverseAlign, bZeroFill;
|
||
StringExtFormatType eFormatType;
|
||
char sBuffer[65];
|
||
int nLen;
|
||
char *pCur, *pTemp, *sTemp;
|
||
|
||
int nArgsLen = 0;
|
||
int nArgsSize = 8;
|
||
StringExtFormatArg *arrArgs = (StringExtFormatArg *)MemUtilsMallocArray(nArgsSize, sizeof(StringExtFormatArg));
|
||
|
||
pCur = sFormat;
|
||
while (*pCur)
|
||
{
|
||
if (*pCur == '{')
|
||
{
|
||
++pCur;
|
||
if (*pCur == '{')
|
||
{
|
||
++pCur;
|
||
Append('{');
|
||
}
|
||
else
|
||
{
|
||
// Разбираем форматированную строку
|
||
if (!(*pCur >= '0' && *pCur <= '9'))
|
||
break;
|
||
nIndex = *pCur - '0';
|
||
for (++pCur; *pCur >= '0' && *pCur <= '9'; ++pCur)
|
||
nIndex = 10 * nIndex + (*pCur - '0');
|
||
|
||
if (*pCur != ':')
|
||
break;
|
||
++pCur;
|
||
if (*pCur == '-')
|
||
{
|
||
bReverseAlign = true;
|
||
++pCur;
|
||
}
|
||
else
|
||
bReverseAlign = false;
|
||
nWidth = 0;
|
||
bZeroFill = *pCur == '0';
|
||
for (; *pCur >= '0' && *pCur <= '9'; ++pCur)
|
||
nWidth = 10 * nWidth + (*pCur - '0');
|
||
if (*pCur == '.')
|
||
{
|
||
++pCur;
|
||
nPrecision = 0;
|
||
for (; *pCur >= '0' && *pCur <= '9'; ++pCur)
|
||
{
|
||
nPrecision = 10 * nPrecision + (*pCur - '0');
|
||
}
|
||
}
|
||
else
|
||
{
|
||
nPrecision = 0;
|
||
}
|
||
for (eFormatType = (StringExtFormatType)0;
|
||
c_arrsFormatStrings[eFormatType];
|
||
eFormatType = (StringExtFormatType)(eFormatType + 1))
|
||
{
|
||
if (!strncmp(pCur, c_arrsFormatStrings[eFormatType], strlen(c_arrsFormatStrings[eFormatType])))
|
||
{
|
||
break;
|
||
}
|
||
}
|
||
if (!c_arrsFormatStrings[eFormatType])
|
||
{
|
||
break;
|
||
}
|
||
pCur += strlen(c_arrsFormatStrings[eFormatType]);
|
||
if (*pCur != '}')
|
||
{
|
||
break;
|
||
}
|
||
++pCur;
|
||
// fetch the argument
|
||
if (nIndex > nArgsLen)
|
||
{
|
||
break;
|
||
}
|
||
if (nIndex == nArgsLen)
|
||
{
|
||
if (nArgsLen == nArgsSize)
|
||
{
|
||
nArgsSize *= 2;
|
||
arrArgs = (StringExtFormatArg *)MemUtilsReallocArray(arrArgs, nArgsSize, sizeof(StringExtFormatArg));
|
||
}
|
||
switch (eFormatType)
|
||
{
|
||
case fmtIntDecimal:
|
||
case fmtIntHex:
|
||
case fmtIntOctal:
|
||
case fmtIntBinary:
|
||
case fmtSpace:
|
||
arrArgs[nArgsLen].iValue = va_arg(sArgList, int);
|
||
break;
|
||
case fmtUIntDecimal:
|
||
case fmtUIntHex:
|
||
case fmtUIntOctal:
|
||
case fmtUIntBinary:
|
||
arrArgs[nArgsLen].uiValue = va_arg(sArgList, unsigned int);
|
||
break;
|
||
case fmtLongDecimal:
|
||
case fmtLongHex:
|
||
case fmtLongOctal:
|
||
case fmtLongBinary:
|
||
arrArgs[nArgsLen].lValue = va_arg(sArgList, long);
|
||
break;
|
||
case fmtULongDecimal:
|
||
case fmtULongHex:
|
||
case fmtULongOctal:
|
||
case fmtULongBinary:
|
||
arrArgs[nArgsLen].ulValue = va_arg(sArgList, unsigned long);
|
||
break;
|
||
case fmtDouble:
|
||
case fmtDoubleTrim:
|
||
arrArgs[nArgsLen].fValue = va_arg(sArgList, double);
|
||
break;
|
||
case fmtChar:
|
||
arrArgs[nArgsLen].cValue = (char)va_arg(sArgList, int);
|
||
break;
|
||
case fmtString:
|
||
arrArgs[nArgsLen].sValue = va_arg(sArgList, char *);
|
||
break;
|
||
case fmtStringExt:
|
||
arrArgs[nArgsLen].seValue = va_arg(sArgList, StringExt *);
|
||
break;
|
||
}
|
||
++nArgsLen;
|
||
}
|
||
|
||
uArg = arrArgs[nIndex];
|
||
switch (eFormatType)
|
||
{
|
||
case fmtIntDecimal:
|
||
FormatInt(uArg.iValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 10, &sTemp, &nLen);
|
||
break;
|
||
case fmtIntHex:
|
||
FormatInt(uArg.iValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 16, &sTemp, &nLen);
|
||
break;
|
||
case fmtIntOctal:
|
||
FormatInt(uArg.iValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 8, &sTemp, &nLen);
|
||
break;
|
||
case fmtIntBinary:
|
||
FormatInt(uArg.iValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 2, &sTemp, &nLen);
|
||
break;
|
||
case fmtUIntDecimal:
|
||
FormatUInt(uArg.uiValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 10, &sTemp, &nLen);
|
||
break;
|
||
case fmtUIntHex:
|
||
FormatUInt(uArg.uiValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 16, &sTemp, &nLen);
|
||
break;
|
||
case fmtUIntOctal:
|
||
FormatUInt(uArg.uiValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 8, &sTemp, &nLen);
|
||
break;
|
||
case fmtUIntBinary:
|
||
FormatUInt(uArg.uiValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 2, &sTemp, &nLen);
|
||
break;
|
||
case fmtLongDecimal:
|
||
FormatInt(uArg.lValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 10, &sTemp, &nLen);
|
||
break;
|
||
case fmtLongHex:
|
||
FormatInt(uArg.lValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 16, &sTemp, &nLen);
|
||
break;
|
||
case fmtLongOctal:
|
||
FormatInt(uArg.lValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 8, &sTemp, &nLen);
|
||
break;
|
||
case fmtLongBinary:
|
||
FormatInt(uArg.lValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 2, &sTemp, &nLen);
|
||
break;
|
||
case fmtULongDecimal:
|
||
FormatUInt(uArg.ulValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 10, &sTemp, &nLen);
|
||
break;
|
||
case fmtULongHex:
|
||
FormatUInt(uArg.ulValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 16, &sTemp, &nLen);
|
||
break;
|
||
case fmtULongOctal:
|
||
FormatUInt(uArg.ulValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 8, &sTemp, &nLen);
|
||
break;
|
||
case fmtULongBinary:
|
||
FormatUInt(uArg.ulValue, sBuffer, sizeof(sBuffer), bZeroFill, nWidth, 2, &sTemp, &nLen);
|
||
break;
|
||
case fmtDouble:
|
||
FormatDouble(uArg.fValue, sBuffer, sizeof(sBuffer), nPrecision, false, &sTemp, &nLen);
|
||
break;
|
||
case fmtDoubleTrim:
|
||
FormatDouble(uArg.fValue, sBuffer, sizeof(sBuffer), nPrecision, true, &sTemp, &nLen);
|
||
break;
|
||
case fmtChar:
|
||
sBuffer[0] = uArg.cValue;
|
||
sTemp = sBuffer;
|
||
nLen = 1;
|
||
bReverseAlign = !bReverseAlign;
|
||
break;
|
||
case fmtString:
|
||
sTemp = uArg.sValue;
|
||
nLen = strlen(sTemp);
|
||
bReverseAlign = !bReverseAlign;
|
||
break;
|
||
case fmtStringExt:
|
||
sTemp = uArg.seValue->GetBuffer();
|
||
nLen = uArg.seValue->GetLength();
|
||
bReverseAlign = !bReverseAlign;
|
||
break;
|
||
case fmtSpace:
|
||
sTemp = sBuffer;
|
||
nLen = 0;
|
||
nWidth = uArg.iValue;
|
||
break;
|
||
default:
|
||
sTemp = sBuffer;
|
||
nLen = 0;
|
||
nWidth = uArg.iValue;
|
||
break;
|
||
}
|
||
// Добавляем аргумент в нужном формате, с нужным прилеганием
|
||
if (!bReverseAlign && nLen < nWidth)
|
||
{
|
||
for (int nCounter = nLen; nCounter < nWidth; ++nCounter)
|
||
Append(' ');
|
||
}
|
||
Append(sTemp, nLen);
|
||
if (bReverseAlign && nLen < nWidth)
|
||
{
|
||
for (int nCounter = nLen; nCounter < nWidth; ++nCounter)
|
||
Append(' ');
|
||
}
|
||
}
|
||
}
|
||
else if (*pCur == '}')
|
||
{
|
||
++pCur;
|
||
if (*pCur == '}')
|
||
++pCur;
|
||
Append('}');
|
||
}
|
||
else
|
||
{
|
||
for (pTemp = pCur + 1; *pTemp && *pTemp != '{' && *pTemp != '}'; ++pTemp);
|
||
Append(pCur, pTemp - pCur);
|
||
pCur = pTemp;
|
||
}
|
||
}
|
||
MemUtilsFree(arrArgs);
|
||
return this;
|
||
}
|
||
|
||
void StringExt::FormatInt(long nValue, char *sBuffer, int nBufferSize, bool bZeroFill, int nWidth, int nBase, char **ppData, int *pnLen)
|
||
{
|
||
static char c_sValues[17] = "0123456789abcdef";
|
||
bool bNegative = false;
|
||
int nStart;
|
||
|
||
int nCur = nBufferSize;
|
||
if ((bNegative = nValue < 0))
|
||
{
|
||
nValue = -nValue;
|
||
}
|
||
nStart = bNegative ? 1 : 0;
|
||
if (nValue == 0)
|
||
{
|
||
sBuffer[--nCur] = '0';
|
||
}
|
||
else
|
||
{
|
||
while (nCur > nStart && nValue)
|
||
{
|
||
sBuffer[--nCur] = c_sValues[nValue % nBase];
|
||
nValue /= nBase;
|
||
}
|
||
}
|
||
if (bZeroFill)
|
||
{
|
||
for (int nCounter = nBufferSize - nCur; nCur > nStart && nCounter < nWidth - nStart; ++nCounter)
|
||
{
|
||
sBuffer[--nCur] = '0';
|
||
}
|
||
}
|
||
if (bNegative)
|
||
{
|
||
sBuffer[--nCur] = '-';
|
||
}
|
||
*ppData = sBuffer + nCur;
|
||
*pnLen = nBufferSize - nCur;
|
||
}
|
||
|
||
void StringExt::FormatUInt(unsigned long nValue, char *sBuffer, int nBufferSize, bool bZeroFill, int nWidth, int nBase, char **ppData, int *pnLen)
|
||
{
|
||
static char c_sValues[17] = "0123456789abcdef";
|
||
|
||
int nCur = nBufferSize;
|
||
if (nValue == 0)
|
||
{
|
||
sBuffer[--nCur] = '0';
|
||
}
|
||
else
|
||
{
|
||
while (nCur > 0 && nValue)
|
||
{
|
||
sBuffer[--nCur] = c_sValues[nValue % nBase];
|
||
nValue /= nBase;
|
||
}
|
||
}
|
||
if (bZeroFill)
|
||
{
|
||
for (int nCounter = nBufferSize - nCur; nCur > 0 && nCounter < nWidth; ++nCounter)
|
||
{
|
||
sBuffer[--nCur] = '0';
|
||
}
|
||
}
|
||
*ppData = sBuffer + nCur;
|
||
*pnLen = nBufferSize - nCur;
|
||
}
|
||
|
||
void StringExt::FormatDouble(double dValue, char *sBuffer, int nBufferSize, int nPrecision, bool bTrim, char **ppData, int *pnLen)
|
||
{
|
||
bool bNegative = false, bStarted = false;
|
||
double dTemp = 0;
|
||
int nInt;
|
||
|
||
if ((bNegative = dValue < 0))
|
||
dValue = -dValue;
|
||
|
||
dValue = floor(dValue * pow((double)10, nPrecision) + 0.5);
|
||
int nCur = nBufferSize;
|
||
bStarted = !bTrim;
|
||
for (int nCounter = 0; nCounter < nPrecision && nCur > 1; ++nCounter)
|
||
{
|
||
dTemp = floor(0.1 * (dValue + 0.5));
|
||
nInt = (int)floor(dValue - 10 * dTemp + 0.5);
|
||
if (bStarted || nInt != 0)
|
||
{
|
||
sBuffer[--nCur] = '0' + nInt;
|
||
bStarted = true;
|
||
}
|
||
dValue = dTemp;
|
||
}
|
||
if (nCur > 1 && bStarted)
|
||
sBuffer[--nCur] = '.';
|
||
if (nCur > 1)
|
||
{
|
||
do {
|
||
dTemp = floor(0.1 * (dValue + 0.5));
|
||
nInt = (int)floor(dValue - 10 * dTemp + 0.5);
|
||
sBuffer[--nCur] = '0' + nInt;
|
||
dValue = dTemp;
|
||
} while (nCur > 1 && dValue);
|
||
}
|
||
if (bNegative)
|
||
sBuffer[--nCur] = '-';
|
||
|
||
*ppData = sBuffer + nCur;
|
||
*pnLen = nBufferSize - nCur;
|
||
}
|
||
|
||
StringExt *StringExt::Insert(int nIndex, char nChar)
|
||
{
|
||
Resize(m_nLength + 1);
|
||
for (int nJ = m_nLength + 1; nJ > nIndex; --nJ)
|
||
m_sData[nJ] = m_sData[nJ - 1];
|
||
m_sData[nIndex] = nChar;
|
||
++m_nLength;
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Insert(int nIndex, StringExt *seString)
|
||
{
|
||
int nLen = seString->GetLength();
|
||
Resize(m_nLength + nLen);
|
||
for (int nJ = m_nLength; nJ >= nIndex; --nJ)
|
||
m_sData[nJ + nLen] = m_sData[nJ];
|
||
memcpy(m_sData + nIndex, seString->GetBuffer(), nLen);
|
||
m_nLength += nLen;
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Insert(int nIndex, const char *sString)
|
||
{
|
||
int nLen = strlen(sString);
|
||
|
||
Resize(m_nLength + nLen);
|
||
for (int nJ = m_nLength; nJ >= nIndex; --nJ)
|
||
m_sData[nJ + nLen] = m_sData[nJ];
|
||
memcpy(m_sData + nIndex, sString, nLen);
|
||
m_nLength += nLen;
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Insert(int nIndex, const char *sString, int nLength)
|
||
{
|
||
Resize(m_nLength + nLength);
|
||
for (int nJ = m_nLength; nJ >= nIndex; --nJ)
|
||
m_sData[nJ + nLength] = m_sData[nJ];
|
||
memcpy(m_sData + nIndex, sString, nLength);
|
||
m_nLength += nLength;
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::Delete(int nIndex, int nCount)
|
||
{
|
||
if (nCount > 0)
|
||
{
|
||
if (nIndex + nCount > m_nLength)
|
||
nCount = m_nLength - nIndex;
|
||
for (int nJ = nIndex; nJ <= m_nLength - nCount; ++nJ)
|
||
{
|
||
m_sData[nJ] = m_sData[nJ + nCount];
|
||
}
|
||
Resize(m_nLength -= nCount);
|
||
}
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::MakeUpper()
|
||
{
|
||
for (int nIndex = 0; nIndex < m_nLength; ++nIndex)
|
||
{
|
||
if (islower(m_sData[nIndex]))
|
||
m_sData[nIndex] = toupper(m_sData[nIndex]);
|
||
}
|
||
return this;
|
||
}
|
||
|
||
StringExt *StringExt::MakeLower()
|
||
{
|
||
for (int nIndex = 0; nIndex < m_nLength; ++nIndex)
|
||
{
|
||
if (isupper(m_sData[nIndex]))
|
||
m_sData[nIndex] = tolower(m_sData[nIndex]);
|
||
}
|
||
return this;
|
||
}
|
||
|
||
int StringExt::Compare(StringExt *seOther)
|
||
{
|
||
int nIndex = 0;
|
||
char *pThis, *pOther;
|
||
|
||
int nThisLen = m_nLength;
|
||
int nOtherLen = seOther->m_nLength;
|
||
for (nIndex = 0, pThis = m_sData, pOther = seOther->m_sData; nIndex < nThisLen && nIndex < nOtherLen; ++nIndex, ++pThis, ++pOther)
|
||
{
|
||
int nRes = *pThis - *pOther;
|
||
if (0 != nRes)
|
||
return nRes;
|
||
}
|
||
return nThisLen - nOtherLen;
|
||
}
|
||
|
||
int StringExt::CompareN(StringExt *seOther, int nCount)
|
||
{
|
||
int nIndex;
|
||
char *pThis, *pOther;
|
||
|
||
int nThisLen = m_nLength;
|
||
int nOtherLen = seOther->m_nLength;
|
||
for (nIndex = 0, pThis = m_sData, pOther = seOther->m_sData; nIndex < nThisLen && nIndex < nOtherLen && nIndex < nCount; ++nIndex, ++pThis, ++pOther)
|
||
{
|
||
int nRes = *pThis - *pOther;
|
||
if (0 != nRes)
|
||
return nRes;
|
||
}
|
||
if (nIndex == nCount)
|
||
return 0;
|
||
return nThisLen - nOtherLen;
|
||
}
|
||
|
||
int StringExt::Compare(const char *sOther)
|
||
{
|
||
int nIndex;
|
||
const char *pThis, *pOther;
|
||
|
||
int nThisLen = m_nLength;
|
||
for (nIndex = 0, pThis = m_sData, pOther = sOther; nIndex < nThisLen && *pOther; ++nIndex, ++pThis, ++pOther)
|
||
{
|
||
int nRes = *pThis - *pOther;
|
||
if (0 != nRes)
|
||
return nRes;
|
||
}
|
||
if (nIndex < nThisLen)
|
||
return 1;
|
||
if (*pOther)
|
||
return -1;
|
||
return 0;
|
||
}
|
||
|
||
int StringExt::CompareN(const char *sOther, int nCount)
|
||
{
|
||
int nIndex;
|
||
const char *pThis, *pOther;
|
||
|
||
int nThisLen = m_nLength;
|
||
for (nIndex = 0, pThis = m_sData, pOther = sOther; nIndex < nThisLen && *pOther && nIndex < nCount; ++nIndex, ++pThis, ++pOther)
|
||
{
|
||
int nRes = *pThis - *pOther;
|
||
if (0 != nRes)
|
||
return nRes;
|
||
}
|
||
if (nIndex == nCount)
|
||
return 0;
|
||
if (nIndex < nThisLen)
|
||
return 1;
|
||
if (*pOther)
|
||
return -1;
|
||
return 0;
|
||
}
|
||
} |