hxstradv.cpp
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上传日期:2007-06-06
资源大小:33641k
文件大小:9k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxstring.h"
- #include "hlxclib/string.h"
- #include "hlxclib/ctype.h"
- #include "hxassert.h"
- #include "hxstrutl.h"
- CHXString CHXString::SpanIncluding(const char* pCharSet) const
- {
- if (m_pRep)
- return CHXString(m_pRep->GetBuffer(),
- strspn(m_pRep->GetBuffer(), pCharSet));
- return CHXString();
- }
- CHXString CHXString::SpanExcluding(const char* pCharSet) const
- {
- if (m_pRep)
- return CHXString(m_pRep->GetBuffer(),
- strcspn(m_pRep->GetBuffer(), pCharSet));
- return CHXString();
- }
- void CHXString::MakeUpper()
- {
- if (m_pRep)
- {
- EnsureUnique();
-
- char* pCur = m_pRep->GetBuffer();
-
- for(; *pCur; ++pCur)
- *pCur = toupper(*pCur);
- }
- }
- void CHXString::MakeLower()
- {
- if (m_pRep)
- {
- EnsureUnique();
-
- char* pCur = m_pRep->GetBuffer();
-
- for(; *pCur; ++pCur)
- *pCur = tolower(*pCur);
- }
- }
- INT32 CHXString::Find(char ch) const
- {
- INT32 ret = -1;
- if (m_pRep)
- {
- const char* pTmp = strchr(m_pRep->GetBuffer(), ch);
-
- if (pTmp)
- ret = pTmp - m_pRep->GetBuffer();
- }
- return ret;
- }
- INT32 CHXString::ReverseFind(char ch) const
- {
- INT32 ret = -1;
- if (m_pRep)
- {
- const char* pTmp = strrchr(m_pRep->GetBuffer(), ch);
-
- if (pTmp)
- ret = pTmp - m_pRep->GetBuffer();
- }
- return ret;
- }
- INT32 CHXString::Find(const char* pStr) const
- {
- INT32 ret = -1;
-
- if (m_pRep)
- {
- const char* pTmp = strstr(m_pRep->GetBuffer(), pStr);
-
- if (pTmp)
- ret = pTmp - m_pRep->GetBuffer();
- }
- return ret;
- }
- void CHXString::AppendULONG(ULONG32 value)
- {
- static const int MaxULongString = 12;
- char buf[MaxULongString]; /* Flawfinder: ignore */
- int tmp = SafeSprintf(buf, MaxULongString, "%lu", value);
- HX_ASSERT(tmp < MaxULongString);
- *this += buf;
- }
- void CHXString::AppendEndOfLine()
- {
- #if defined(_WINDOWS) || defined(_SYMBIAN)
- *this += "rn";
- #elif defined(_MACINTOSH)
- *this += 'r';
- #else
- *this += 'n';
- #endif /* defined(_WINDOWS) */
- }
- void CHXString::Center(short length)
- {
- if (m_pRep)
- {
- EnsureUnique();
-
- TrimLeft();
- TrimRight();
-
- int offset = 0;
-
- if (length > m_pRep->GetStringSize())
- offset = length / 2 - m_pRep->GetStringSize() / 2;
-
- HX_ASSERT(offset >= 0);
-
- int newSize = offset + m_pRep->GetStringSize();
-
- if (m_pRep->GetBufferSize() < (newSize + 1))
- m_pRep->ResizeAndCopy(newSize);
-
- char* pSrc = m_pRep->GetBuffer() + m_pRep->GetStringSize();
- char* pDest = m_pRep->GetBuffer() + newSize;
-
- // Copy the string so that it is located offset characters
- // from the start of the string
- while (pSrc >= m_pRep->GetBuffer())
- *pDest-- = *pSrc--;
-
- // Put offset number of space characters at the start of the string
- while (pDest >= m_pRep->GetBuffer())
- *pDest-- = ' ';
- m_pRep->SetStringSize(newSize);
- }
- else if (length > 0)
- m_pRep = new CHXStringRep(' ', length / 2);
- }
- CHXString CHXString::Mid(INT32 i, INT32 length) const
- {
- HX_ASSERT(m_pRep && (i <= m_pRep->GetStringSize()));
-
- if (m_pRep)
- {
- if ((i + length) > m_pRep->GetStringSize())
- length = m_pRep->GetStringSize() - i;
-
- return CHXString(m_pRep->GetBuffer() + i, length);
- }
- return CHXString();
- }
- CHXString CHXString::Mid(INT32 i) const
- {
- HX_ASSERT(m_pRep &&(i <= m_pRep->GetStringSize()));
- if (m_pRep)
- return CHXString(m_pRep->GetBuffer() + i);
- return CHXString();
- }
- CHXString CHXString::Left(INT32 length) const
- {
- HX_ASSERT(length >= 0);
-
- if (m_pRep)
- {
- if (length > m_pRep->GetStringSize())
- length = m_pRep->GetStringSize();
- return CHXString(m_pRep->GetBuffer(), length);
- }
- return CHXString();
- }
- CHXString CHXString::Right(INT32 length) const
- {
- HX_ASSERT(length >= 0);
-
- if (m_pRep)
- {
- if (length > m_pRep->GetStringSize())
- length = m_pRep->GetStringSize();
-
- int offset = m_pRep->GetStringSize() - length;
-
- return CHXString(m_pRep->GetBuffer() + offset, length);
- }
- return CHXString();
- }
- ULONG32 CHXString::CountFields(char delim) const
- {
- ULONG32 ret = 0;
- if (m_pRep && m_pRep->GetStringSize())
- {
- ret++; // If the string is not empty we have at least 1 field.
-
- for (const char* pCur = m_pRep->GetBuffer(); *pCur; pCur++)
- if (*pCur == delim)
- ret++;
- }
- return ret;
- }
- static UINT64 PackState(ULONG32 index, ULONG32 offset)
- {
- return (((UINT64)index) << 32) | offset;
- }
- static void UnpackState(UINT64 state, ULONG32& index, ULONG32& offset)
- {
- index = INT64_TO_ULONG32(state >> 32);
- offset = INT64_TO_ULONG32((state & 0x0ffffffff));
- }
- CHXString CHXString::GetNthField(char delim, ULONG32 i, UINT64& state) const
- {
- CHXString ret;
- if (m_pRep)
- {
- ULONG32 index = 0;
- ULONG32 offset = 0;
-
- // Get the state values
- UnpackState(state, index, offset);
-
- if (offset >= (ULONG32)(m_pRep->GetStringSize()))
- offset = 0;
-
- // 'i' passed in as a 1 based, with the exception that 0 also means 1.
- // This converts the 1 based index into a 0 base index
- if (i > 0)
- i = i - 1;
-
- if (i >= index)
- {
- const char* pStart = m_pRep->GetBuffer();
-
- // Apply state information
- pStart += offset;
-
- // Find the start of the field
- for(;(*pStart) && (index < i); pStart++)
- if (*pStart == delim)
- index++;
-
- const char* pEnd = pStart;
-
- // Find the end of the field
- for (; (*pEnd) && (*pEnd != delim); pEnd++);
-
- if (pStart != pEnd)
- ret = CHXString(pStart, pEnd - pStart);
-
- // Update the state
- PackState(index, pEnd - m_pRep->GetBuffer());
- }
- }
- return ret;
- }
- CHXString CHXString::NthField(char delim, ULONG32 i) const
- {
- UINT64 state = PackState(0,0);
- return GetNthField(delim, i, state);
- }
- void CHXString::TrimRight()
- {
- if (m_pRep)
- {
- EnsureUnique();
-
- INT32 strSize = m_pRep->GetStringSize();
-
- if (strSize)
- {
- char* pCur = m_pRep->GetBuffer() + strSize - 1;
-
- for(;(pCur >= m_pRep->GetBuffer()) && (isspace(*pCur)); pCur--, strSize--);
-
- // Null terminate the string
- m_pRep->GetBuffer()[strSize] = ' ';
-
- m_pRep->SetStringSize(strSize);
- }
- }
- }
- void CHXString::TrimLeft()
- {
- if (m_pRep)
- {
- EnsureUnique();
-
- char* pStart = m_pRep->GetBuffer();
-
- for(; (*pStart) && (isspace(*pStart)); pStart++);
-
- INT32 newSize = m_pRep->GetStringSize() - (pStart - m_pRep->GetBuffer());
- memmove(m_pRep->GetBuffer(), pStart, newSize + 1);
-
- m_pRep->SetStringSize(newSize);
- }
- }
- BOOL CHXString::FindAndReplace(const char* pSearch , const char* pReplace,
- BOOL bReplaceAll)
- {
- BOOL ret = FALSE;
- if (m_pRep)
- {
- const char* pStart = m_pRep->GetBuffer();
- const char* pMatch = strstr(pStart, pSearch);
-
- if (pMatch)
- {
- INT32 searchLen = SafeStrlen(pSearch);
- CHXString buf;
- while(pMatch)
- {
- // Append any data that was between pStart and pMatch
- buf.Append(pStart, pMatch - pStart);
- // Append the replacement string to our buffer
- buf += pReplace;
- // Update search start position
- pStart = pMatch + searchLen;
- // See if we need to do more replacements
- if (bReplaceAll)
- pMatch = strstr(pStart, pSearch);
- else
- pMatch = 0;
- }
- // Append trailing part of the string
- buf += pStart;
- // Update the this objects m_pRep with the one we
- // just constructed in buf
- *this = buf;
- ret = TRUE;
- }
- }
- return ret;
- }