X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/84f5e95e86bc76e0dd2008a499deade13d92ccd5..e319bb30f7e88242f56144fcc279b57047566a6b:/src/common/string.cpp?ds=inline diff --git a/src/common/string.cpp b/src/common/string.cpp index 764e1ff3b8..2a98946787 100644 --- a/src/common/string.cpp +++ b/src/common/string.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: string.cpp +// Name: src/common/string.cpp // Purpose: wxString class // Author: Vadim Zeitlin, Ryan Norton // Modified by: @@ -10,10 +10,6 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "string.h" -#endif - /* * About ref counting: * 1) all empty strings use g_strEmpty, nRefs = -1 (set in Init()) @@ -29,26 +25,26 @@ #include "wx/wxprec.h" #ifdef __BORLANDC__ - #pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP - #include "wx/defs.h" - #include "wx/string.h" - #include "wx/intl.h" - #include "wx/thread.h" + #include "wx/string.h" + #include "wx/intl.h" + #include "wx/thread.h" #endif #include -#include -#include -#ifndef __WXMSW__ -#include +#ifndef __WXWINCE__ + #include #endif +#include +#include + #ifdef __SALFORDC__ - #include + #include #endif // allocating extra space for each string consumes more memory but speeds up @@ -95,48 +91,16 @@ extern const wxChar WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dummy; #if wxUSE_STD_IOSTREAM -// MS Visual C++ version 5.0 provides the new STL headers as well as the old -// iostream ones. -// -// ATTN: you can _not_ use both of these in the same program! - #include -wxSTD istream& operator>>(wxSTD istream& is, wxString& WXUNUSED(str)) -{ -#if 0 - int w = is.width(0); - if ( is.ipfx(0) ) { - streambuf *sb = is.rdbuf(); - str.erase(); - while ( true ) { - int ch = sb->sbumpc (); - if ( ch == EOF ) { - is.setstate(ios::eofbit); - break; - } - else if ( isspace(ch) ) { - sb->sungetc(); - break; - } - - str += ch; - if ( --w == 1 ) - break; - } - } - - is.isfx(); - if ( str.length() == 0 ) - is.setstate(ios::failbit); -#endif - return is; -} - wxSTD ostream& operator<<(wxSTD ostream& os, const wxString& str) { - os << str.c_str(); - return os; +#ifdef __BORLANDC__ + os << str.mb_str(); +#else + os << str.c_str(); +#endif + return os; } #endif // wxUSE_STD_IOSTREAM @@ -215,8 +179,16 @@ void wxStringBase::InitWith(const wxChar *psz, size_t nPos, size_t nLength) // poor man's iterators are "void *" pointers wxStringBase::wxStringBase(const void *pStart, const void *pEnd) { - InitWith((const wxChar *)pStart, 0, - (const wxChar *)pEnd - (const wxChar *)pStart); + if ( pEnd >= pStart ) + { + InitWith((const wxChar *)pStart, 0, + (const wxChar *)pEnd - (const wxChar *)pStart); + } + else + { + wxFAIL_MSG( _T("pStart is not before pEnd") ); + Init(); + } } wxStringBase::wxStringBase(size_type n, wxChar ch) @@ -365,8 +337,8 @@ bool wxStringBase::Alloc(size_t nLen) if ( pData->IsEmpty() ) { nLen += EXTRA_ALLOC; - wxStringData* pData = (wxStringData*) - malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); + pData = (wxStringData *) + malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); if ( pData == NULL ) { // allocation failure handled by caller @@ -435,35 +407,35 @@ wxStringBase::iterator wxStringBase::erase(iterator it) wxStringBase& wxStringBase::erase(size_t nStart, size_t nLen) { - wxASSERT(nStart <= length()); - size_t strLen = length() - nStart; - // delete nLen or up to the end of the string characters - nLen = strLen < nLen ? strLen : nLen; - wxString strTmp(c_str(), nStart); - strTmp.append(c_str() + nStart + nLen, length() - nStart - nLen); + wxASSERT(nStart <= length()); + size_t strLen = length() - nStart; + // delete nLen or up to the end of the string characters + nLen = strLen < nLen ? strLen : nLen; + wxString strTmp(c_str(), nStart); + strTmp.append(c_str() + nStart + nLen, length() - nStart - nLen); - swap(strTmp); - return *this; + swap(strTmp); + return *this; } wxStringBase& wxStringBase::insert(size_t nPos, const wxChar *sz, size_t n) { - wxASSERT( nPos <= length() ); + wxASSERT( nPos <= length() ); - if ( n == npos ) n = wxStrlen(sz); - if ( n == 0 ) return *this; + if ( n == npos ) n = wxStrlen(sz); + if ( n == 0 ) return *this; - if ( !Alloc(length() + n) || !CopyBeforeWrite() ) { - wxFAIL_MSG( _T("out of memory in wxStringBase::insert") ); - } + if ( !Alloc(length() + n) || !CopyBeforeWrite() ) { + wxFAIL_MSG( _T("out of memory in wxStringBase::insert") ); + } - memmove(m_pchData + nPos + n, m_pchData + nPos, - (length() - nPos) * sizeof(wxChar)); - memcpy(m_pchData + nPos, sz, n * sizeof(wxChar)); - GetStringData()->nDataLength = length() + n; - m_pchData[length()] = '\0'; + memmove(m_pchData + nPos + n, m_pchData + nPos, + (length() - nPos) * sizeof(wxChar)); + memcpy(m_pchData + nPos, sz, n * sizeof(wxChar)); + GetStringData()->nDataLength = length() + n; + m_pchData[length()] = '\0'; - return *this; + return *this; } void wxStringBase::swap(wxStringBase& str) @@ -475,50 +447,61 @@ void wxStringBase::swap(wxStringBase& str) size_t wxStringBase::find(const wxStringBase& str, size_t nStart) const { - wxASSERT( str.GetStringData()->IsValid() ); - wxASSERT( nStart <= length() ); + // deal with the special case of empty string first + const size_t nLen = length(); + const size_t nLenOther = str.length(); - //anchor - const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart, - str.c_str()[0], - length() - nStart); + if ( !nLenOther ) + { + // empty string is a substring of anything + return 0; + } - if(!p) - return npos; + if ( !nLen ) + { + // the other string is non empty so can't be our substring + return npos; + } - while(p - c_str() + str.length() <= length() && - wxTmemcmp(p, str.c_str(), str.length()) ) - { - //Previosly passed as the first argument to wxTmemchr, - //but C/C++ standard does not specify evaluation order - //of arguments to functions - - //http://embedded.com/showArticle.jhtml?articleID=9900607 - ++p; - - //anchor again - p = (const wxChar*)wxTmemchr(p, - str.c_str()[0], - length() - (p - c_str())); - - if(!p) - return npos; - } + wxASSERT( str.GetStringData()->IsValid() ); + wxASSERT( nStart <= nLen ); + + const wxChar * const other = str.c_str(); - return (p - c_str() + str.length() <= length()) ? p - c_str() : npos; + // anchor + const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart, + *other, + nLen - nStart); + + if ( !p ) + return npos; + + while ( p - c_str() + nLenOther <= nLen && wxTmemcmp(p, other, nLenOther) ) + { + p++; + + // anchor again + p = (const wxChar*)wxTmemchr(p, *other, nLen - (p - c_str())); + + if ( !p ) + return npos; + } + + return p - c_str() + nLenOther <= nLen ? p - c_str() : npos; } size_t wxStringBase::find(const wxChar* sz, size_t nStart, size_t n) const { - return find(wxStringBase(sz, n), nStart); + return find(wxStringBase(sz, n), nStart); } size_t wxStringBase::find(wxChar ch, size_t nStart) const { - wxASSERT( nStart <= length() ); + wxASSERT( nStart <= length() ); - const wxChar *p = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart); + const wxChar *p = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart); - return p == NULL ? npos : p - c_str(); + return p == NULL ? npos : p - c_str(); } size_t wxStringBase::rfind(const wxStringBase& str, size_t nStart) const @@ -739,10 +722,22 @@ wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, wxStringBase strTmp; strTmp.reserve(length()); // micro optimisation to avoid multiple mem allocs - if ( nStart != 0 ) - strTmp.append(c_str(), nStart); + //This is kind of inefficient, but its pretty good considering... + //we don't want to use character access operators here because on STL + //it will freeze the reference count of strTmp, which means a deep copy + //at the end when swap is called + // + //Also, we can't use append with the full character pointer and must + //do it manually because this string can contain null characters + for(size_t i1 = 0; i1 < nStart; ++i1) + strTmp.append(1, this->c_str()[i1]); + + //its safe to do the full version here because + //sz must be a normal c string strTmp.append(sz); - strTmp.append(c_str() + nStart + nLen); + + for(size_t i2 = nStart + nLen; i2 < length(); ++i2) + strTmp.append(1, this->c_str()[i2]); swap(strTmp); return *this; @@ -998,114 +993,58 @@ int STRINGCLASS::compare(size_t nStart, size_t nLen, #if wxUSE_UNICODE // from multibyte string -wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength) +wxString::wxString(const char *psz, const wxMBConv& conv, size_t nLength) { - // if nLength != npos, then we have to make a NULL-terminated copy - // of first nLength bytes of psz first because the input buffer to MB2WC - // must always be NULL-terminated: - wxCharBuffer inBuf((const char *)NULL); - if (nLength != npos) - { - wxASSERT( psz != NULL ); - wxCharBuffer tmp(nLength); - memcpy(tmp.data(), psz, nLength); - tmp.data()[nLength] = '\0'; - inBuf = tmp; - psz = inBuf.data(); - } - - // first get the size of the buffer we need - size_t nLen; - if ( psz ) - { - // calculate the needed size ourselves or use the provided one - if (nLength == npos) - nLen = strlen(psz); - else - nLen = nLength; - } - else - { - // nothing to convert - nLen = 0; - } - - // anything to do? - if ( (nLen != 0) && (nLen != (size_t)-1) ) + if ( psz && nLength != 0 ) { - //Convert string - size_t nRealSize; - wxWCharBuffer theBuffer = conv.cMB2WC(psz, nLen, &nRealSize); + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } - //Copy - if (nRealSize) - assign( theBuffer.data() , nRealSize - 1 ); + size_t nLenWide; + wxWCharBuffer wbuf = conv.cMB2WC(psz, nLength, &nLenWide); + + if ( nLenWide ) + assign(wbuf, nLenWide); } } //Convert wxString in Unicode mode to a multi-byte string -const wxCharBuffer wxString::mb_str(wxMBConv& conv) const +const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const { - size_t dwOutSize; - return conv.cWC2MB(c_str(), length(), &dwOutSize); + return conv.cWC2MB(c_str(), length() + 1 /* size, not length */, NULL); } #else // ANSI #if wxUSE_WCHAR_T + // from wide string -wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength) +wxString::wxString(const wchar_t *pwz, const wxMBConv& conv, size_t nLength) { - // if nLength != npos, then we have to make a NULL-terminated copy - // of first nLength chars of psz first because the input buffer to WC2MB - // must always be NULL-terminated: - wxWCharBuffer inBuf((const wchar_t *)NULL); - if (nLength != npos) - { - wxASSERT( pwz != NULL ); - wxWCharBuffer tmp(nLength); - memcpy(tmp.data(), pwz, nLength * sizeof(wchar_t)); - tmp.data()[nLength] = '\0'; - inBuf = tmp; - pwz = inBuf.data(); - } - - // first get the size of the buffer we need - size_t nLen; - if ( pwz ) - { - // calculate the needed size ourselves or use the provided one - if (nLength == npos) - nLen = wxWcslen(pwz); - else - nLen = nLength; - } - else - { - // nothing to convert - nLen = 0; - } - // anything to do? - if ( (nLen != 0) && (nLen != (size_t)-1) ) + if ( pwz && nLength != 0 ) { - //Convert string - size_t nRealSize; - wxCharBuffer theBuffer = conv.cWC2MB(pwz, nLen, &nRealSize); + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } - //Copy - if (nRealSize) - assign( theBuffer.data() , nRealSize - 1 ); + size_t nLenMB; + wxCharBuffer buf = conv.cWC2MB(pwz, nLength, &nLenMB); + + if ( nLenMB ) + assign(buf, nLenMB); } } //Converts this string to a wide character string if unicode //mode is not enabled and wxUSE_WCHAR_T is enabled -const wxWCharBuffer wxString::wc_str(wxMBConv& conv) const +const wxWCharBuffer wxString::wc_str(const wxMBConv& conv) const { - size_t dwOutSize; - return conv.cMB2WC(c_str(), length(), &dwOutSize); + return conv.cMB2WC(c_str(), length() + 1 /* size, not length */, NULL); } #endif // wxUSE_WCHAR_T @@ -1138,16 +1077,21 @@ wxChar *wxString::GetWriteBuf(size_t nLen) // put string back in a reasonable state after GetWriteBuf void wxString::UngetWriteBuf() { - GetStringData()->nDataLength = wxStrlen(m_pchData); - GetStringData()->Validate(true); + UngetWriteBuf(wxStrlen(m_pchData)); } void wxString::UngetWriteBuf(size_t nLen) { - GetStringData()->nDataLength = nLen; - GetStringData()->Validate(true); + wxStringData * const pData = GetStringData(); + + wxASSERT_MSG( nLen < pData->nAllocLength, _T("buffer overrun") ); + + // the strings we store are always NUL-terminated + pData->data()[nLen] = _T('\0'); + pData->nDataLength = nLen; + pData->Validate(true); } -#endif +#endif // !wxUSE_STL // --------------------------------------------------------------------------- // data access @@ -1189,70 +1133,70 @@ wxString& wxString::operator=(const wchar_t *pwz) wxString operator+(const wxString& str1, const wxString& str2) { #if !wxUSE_STL - wxASSERT( str1.GetStringData()->IsValid() ); - wxASSERT( str2.GetStringData()->IsValid() ); + wxASSERT( str1.GetStringData()->IsValid() ); + wxASSERT( str2.GetStringData()->IsValid() ); #endif - wxString s = str1; - s += str2; + wxString s = str1; + s += str2; - return s; + return s; } wxString operator+(const wxString& str, wxChar ch) { #if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); + wxASSERT( str.GetStringData()->IsValid() ); #endif - wxString s = str; - s += ch; + wxString s = str; + s += ch; - return s; + return s; } wxString operator+(wxChar ch, const wxString& str) { #if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); + wxASSERT( str.GetStringData()->IsValid() ); #endif - wxString s = ch; - s += str; + wxString s = ch; + s += str; - return s; + return s; } wxString operator+(const wxString& str, const wxChar *psz) { #if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); + wxASSERT( str.GetStringData()->IsValid() ); #endif - wxString s; - if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) { - wxFAIL_MSG( _T("out of memory in wxString::operator+") ); - } - s += str; - s += psz; + wxString s; + if ( !s.Alloc(wxStrlen(psz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); + } + s += str; + s += psz; - return s; + return s; } wxString operator+(const wxChar *psz, const wxString& str) { #if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); + wxASSERT( str.GetStringData()->IsValid() ); #endif - wxString s; - if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) { - wxFAIL_MSG( _T("out of memory in wxString::operator+") ); - } - s = psz; - s += str; + wxString s; + if ( !s.Alloc(wxStrlen(psz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); + } + s = psz; + s += str; - return s; + return s; } // =========================================================================== @@ -1385,32 +1329,33 @@ const wxCharBuffer wxString::ToAscii() const // extract string of length nCount starting at nFirst wxString wxString::Mid(size_t nFirst, size_t nCount) const { - size_t nLen = length(); + size_t nLen = length(); - // default value of nCount is npos and means "till the end" - if ( nCount == npos ) - { - nCount = nLen - nFirst; - } + // default value of nCount is npos and means "till the end" + if ( nCount == npos ) + { + nCount = nLen - nFirst; + } - // out-of-bounds requests return sensible things - if ( nFirst + nCount > nLen ) - { - nCount = nLen - nFirst; - } + // out-of-bounds requests return sensible things + if ( nFirst + nCount > nLen ) + { + nCount = nLen - nFirst; + } - if ( nFirst > nLen ) - { - // AllocCopy() will return empty string - nCount = 0; - } + if ( nFirst > nLen ) + { + // AllocCopy() will return empty string + return wxEmptyString; + } - wxString dest(*this, nFirst, nCount); - if ( dest.length() != nCount ) { - wxFAIL_MSG( _T("out of memory in wxString::Mid") ); - } + wxString dest(*this, nFirst, nCount); + if ( dest.length() != nCount ) + { + wxFAIL_MSG( _T("out of memory in wxString::Mid") ); + } - return dest; + return dest; } // check that the string starts with prefix and return the rest of the string @@ -1442,6 +1387,27 @@ bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const return true; } + +// check that the string ends with suffix and return the rest of it in the +// provided pointer if it is not NULL, otherwise return false +bool wxString::EndsWith(const wxChar *suffix, wxString *rest) const +{ + wxASSERT_MSG( suffix, _T("invalid parameter in wxString::EndssWith") ); + + int start = length() - wxStrlen(suffix); + if ( start < 0 || wxStrcmp(c_str() + start, suffix) != 0 ) + return false; + + if ( rest ) + { + // put the rest of the string into provided pointer + rest->assign(*this, 0, start); + } + + return true; +} + + // extract nCount last (rightmost) characters wxString wxString::Right(size_t nCount) const { @@ -1516,55 +1482,46 @@ wxString wxString::AfterFirst(wxChar ch) const } // replace first (or all) occurences of some substring with another one -size_t -wxString::Replace(const wxChar *szOld, const wxChar *szNew, bool bReplaceAll) +size_t wxString::Replace(const wxChar *szOld, + const wxChar *szNew, bool bReplaceAll) { // if we tried to replace an empty string we'd enter an infinite loop below wxCHECK_MSG( szOld && *szOld && szNew, 0, _T("wxString::Replace(): invalid parameter") ); - size_t uiCount = 0; // count of replacements made + size_t uiCount = 0; // count of replacements made - size_t uiOldLen = wxStrlen(szOld); + size_t uiOldLen = wxStrlen(szOld); + size_t uiNewLen = wxStrlen(szNew); - wxString strTemp; - const wxChar *pCurrent = c_str(); - const wxChar *pSubstr; - while ( *pCurrent != wxT('\0') ) { - pSubstr = wxStrstr(pCurrent, szOld); - if ( pSubstr == NULL ) { - // strTemp is unused if no replacements were made, so avoid the copy - if ( uiCount == 0 ) - return 0; + size_t dwPos = 0; - strTemp += pCurrent; // copy the rest - break; // exit the loop - } - else { - // take chars before match - size_type len = strTemp.length(); - strTemp.append(pCurrent, pSubstr - pCurrent); - if ( strTemp.length() != (size_t)(len + pSubstr - pCurrent) ) { - wxFAIL_MSG( _T("out of memory in wxString::Replace") ); - return 0; - } - strTemp += szNew; - pCurrent = pSubstr + uiOldLen; // restart after match + while ( this->c_str()[dwPos] != wxT('\0') ) + { + //DO NOT USE STRSTR HERE + //this string can contain embedded null characters, + //so strstr will function incorrectly + dwPos = find(szOld, dwPos); + if ( dwPos == npos ) + break; // exit the loop + else + { + //replace this occurance of the old string with the new one + replace(dwPos, uiOldLen, szNew, uiNewLen); - uiCount++; + //move up pos past the string that was replaced + dwPos += uiNewLen; - // stop now? - if ( !bReplaceAll ) { - strTemp += pCurrent; // copy the rest - break; // exit the loop - } - } - } + //increase replace count + ++uiCount; - // only done if there were replacements, otherwise would have returned above - swap(strTemp); + // stop now? + if ( !bReplaceAll ) + break; // exit the loop + } + } - return uiCount; + return uiCount; } bool wxString::IsAscii() const @@ -1642,65 +1599,65 @@ inline int wxSafeIsspace(wxChar ch) { return (ch < 127) && wxIsspace(ch); } // trims spaces (in the sense of isspace) from left or right side wxString& wxString::Trim(bool bFromRight) { - // first check if we're going to modify the string at all - if ( !empty() && - ( - (bFromRight && wxSafeIsspace(GetChar(Len() - 1))) || - (!bFromRight && wxSafeIsspace(GetChar(0u))) + // first check if we're going to modify the string at all + if ( !empty() && + ( + (bFromRight && wxSafeIsspace(GetChar(length() - 1))) || + (!bFromRight && wxSafeIsspace(GetChar(0u))) + ) ) - ) - { - if ( bFromRight ) { - // find last non-space character - iterator psz = begin() + length() - 1; - while ( wxSafeIsspace(*psz) && (psz >= begin()) ) - psz--; + if ( bFromRight ) + { + // find last non-space character + reverse_iterator psz = rbegin(); + while ( (psz != rend()) && wxSafeIsspace(*psz) ) + psz++; - // truncate at trailing space start - *++psz = wxT('\0'); - erase(psz, end()); - } - else - { - // find first non-space character - iterator psz = begin(); - while ( wxSafeIsspace(*psz) ) - psz++; + // truncate at trailing space start + erase(psz.base(), end()); + } + else + { + // find first non-space character + iterator psz = begin(); + while ( (psz != end()) && wxSafeIsspace(*psz) ) + psz++; - // fix up data and length - erase(begin(), psz); + // fix up data and length + erase(begin(), psz); + } } - } - return *this; + return *this; } // adds nCount characters chPad to the string from either side wxString& wxString::Pad(size_t nCount, wxChar chPad, bool bFromRight) { - wxString s(chPad, nCount); + wxString s(chPad, nCount); - if ( bFromRight ) - *this += s; - else - { - s += *this; - swap(s); - } + if ( bFromRight ) + *this += s; + else + { + s += *this; + swap(s); + } - return *this; + return *this; } // truncate the string wxString& wxString::Truncate(size_t uiLen) { - if ( uiLen < Len() ) { - erase(begin() + uiLen, end()); - } - //else: nothing to do, string is already short enough + if ( uiLen < length() ) + { + erase(begin() + uiLen, end()); + } + //else: nothing to do, string is already short enough - return *this; + return *this; } // --------------------------------------------------------------------------- @@ -1710,62 +1667,104 @@ wxString& wxString::Truncate(size_t uiLen) // find a character int wxString::Find(wxChar ch, bool bFromEnd) const { - size_type idx = bFromEnd ? find_last_of(ch) : find_first_of(ch); + size_type idx = bFromEnd ? find_last_of(ch) : find_first_of(ch); - return (idx == npos) ? wxNOT_FOUND : (int)idx; + return (idx == npos) ? wxNOT_FOUND : (int)idx; } // find a sub-string (like strstr) int wxString::Find(const wxChar *pszSub) const { - size_type idx = find(pszSub); + size_type idx = find(pszSub); - return (idx == npos) ? wxNOT_FOUND : (int)idx; + return (idx == npos) ? wxNOT_FOUND : (int)idx; } // ---------------------------------------------------------------------------- // conversion to numbers // ---------------------------------------------------------------------------- -bool wxString::ToLong(long *val, int base) const +// the implementation of all the functions below is exactly the same so factor +// it out + +template +bool wxStringToIntType(const wxChar *start, + T *val, + int base, + F func) { - wxCHECK_MSG( val, false, _T("NULL pointer in wxString::ToLong") ); + wxCHECK_MSG( val, false, _T("NULL output pointer") ); wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); - const wxChar *start = c_str(); +#ifndef __WXWINCE__ + errno = 0; +#endif + wxChar *end; - *val = wxStrtol(start, &end, base); + *val = (*func)(start, &end, base); // return true only if scan was stopped by the terminating NUL and if the - // string was not empty to start with - return !*end && (end != start); + // string was not empty to start with and no under/overflow occurred + return !*end && (end != start) +#ifndef __WXWINCE__ + && (errno != ERANGE) +#endif + ; +} + +bool wxString::ToLong(long *val, int base) const +{ + return wxStringToIntType(c_str(), val, base, wxStrtol); } bool wxString::ToULong(unsigned long *val, int base) const { - wxCHECK_MSG( val, false, _T("NULL pointer in wxString::ToULong") ); - wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); + return wxStringToIntType(c_str(), val, base, wxStrtoul); +} - const wxChar *start = c_str(); - wxChar *end; - *val = wxStrtoul(start, &end, base); +bool wxString::ToLongLong(wxLongLong_t *val, int base) const +{ +#ifdef wxHAS_STRTOLL + return wxStringToIntType(c_str(), val, base, wxStrtoll); +#else + // TODO: implement this ourselves + wxUnusedVar(val); + wxUnusedVar(base); + return false; +#endif // wxHAS_STRTOLL +} - // return true only if scan was stopped by the terminating NUL and if the - // string was not empty to start with - return !*end && (end != start); +bool wxString::ToULongLong(wxULongLong_t *val, int base) const +{ +#ifdef wxHAS_STRTOLL + return wxStringToIntType(c_str(), val, base, wxStrtoull); +#else + // TODO: implement this ourselves + wxUnusedVar(val); + wxUnusedVar(base); + return false; +#endif } bool wxString::ToDouble(double *val) const { wxCHECK_MSG( val, false, _T("NULL pointer in wxString::ToDouble") ); +#ifndef __WXWINCE__ + errno = 0; +#endif + const wxChar *start = c_str(); wxChar *end; *val = wxStrtod(start, &end); // return true only if scan was stopped by the terminating NUL and if the - // string was not empty to start with - return !*end && (end != start); + // string was not empty to start with and no under/overflow occurred + return !*end && (end != start) +#ifndef __WXWINCE__ + && (errno != ERANGE) +#endif + ; } // --------------------------------------------------------------------------- @@ -1796,70 +1795,68 @@ wxString wxString::FormatV(const wxChar *pszFormat, va_list argptr) int wxString::Printf(const wxChar *pszFormat, ...) { - va_list argptr; - va_start(argptr, pszFormat); + va_list argptr; + va_start(argptr, pszFormat); - int iLen = PrintfV(pszFormat, argptr); + int iLen = PrintfV(pszFormat, argptr); - va_end(argptr); + va_end(argptr); - return iLen; + return iLen; } int wxString::PrintfV(const wxChar* pszFormat, va_list argptr) { int size = 1024; - int len; for ( ;; ) { + wxStringBuffer tmp(*this, size + 1); + wxChar *buf = tmp; + + if ( !buf ) { - wxStringBuffer tmp(*this, size + 1); - wxChar* buf = tmp; + // out of memory + return -1; + } - if ( !buf ) - { - // out of memory - return -1; - } + // wxVsnprintf() may modify the original arg pointer, so pass it + // only a copy + va_list argptrcopy; + wxVaCopy(argptrcopy, argptr); + int len = wxVsnprintf(buf, size, pszFormat, argptrcopy); + va_end(argptrcopy); - // wxVsnprintf() may modify the original arg pointer, so pass it - // only a copy - va_list argptrcopy; - wxVaCopy(argptrcopy, argptr); - len = wxVsnprintf(buf, size, pszFormat, argptrcopy); - va_end(argptrcopy); - - // some implementations of vsnprintf() don't NUL terminate - // the string if there is not enough space for it so - // always do it manually - buf[size] = _T('\0'); - } + // some implementations of vsnprintf() don't NUL terminate + // the string if there is not enough space for it so + // always do it manually + buf[size] = _T('\0'); // vsnprintf() may return either -1 (traditional Unix behaviour) or the // total number of characters which would have been written if the - // buffer were large enough - // also, it may return an errno may be something like EILSEQ, - // in which case we need to break out - if ( (len >= 0 && len <= size) - // No EOVERFLOW on Windows nor Palm 6.0 -#if !defined(__WXMSW__) && !defined(__WXPALMOS__) - || errno != EOVERFLOW -#endif - ) + // buffer were large enough (newer standards such as Unix98) + if ( len < 0 ) + { + // still not enough, as we don't know how much we need, double the + // current size of the buffer + size *= 2; + } + else if ( len >= size ) + { + // some vsnprintf() implementations NUL-terminate the buffer and + // some don't in len == size case, to be safe always add 1 + size = len + 1; + } + else // ok, there was enough space { - // ok, there was enough space break; } - - // still not enough, double it again - size *= 2; } // we could have overshot Shrink(); - return Len(); + return length(); } // ---------------------------------------------------------------------------- @@ -2008,7 +2005,7 @@ match: int wxString::Freq(wxChar ch) const { int count = 0; - int len = Len(); + int len = length(); for (int i = 0; i < len; i++) { if (GetChar(i) == ch) @@ -2039,6 +2036,24 @@ int wxString::sprintf(const wxChar *pszFormat, ...) #include "wx/arrstr.h" +wxArrayString::wxArrayString(size_t sz, const wxChar** a) +{ +#if !wxUSE_STL + Init(false); +#endif + for (size_t i=0; i < sz; i++) + Add(a[i]); +} + +wxArrayString::wxArrayString(size_t sz, const wxString* a) +{ +#if !wxUSE_STL + Init(false); +#endif + for (size_t i=0; i < sz; i++) + Add(a[i]); +} + #if !wxUSE_STL // size increment = min(50% of current size, ARRAY_MAXSIZE_INCREMENT) @@ -2175,13 +2190,16 @@ void wxArrayString::Alloc(size_t nSize) { // only if old buffer was not big enough if ( nSize > m_nSize ) { - Free(); - wxDELETEA(m_pItems); - m_pItems = new wxChar *[nSize]; + wxChar **pNew = new wxChar *[nSize]; + if ( !pNew ) + return; + + memcpy(pNew, m_pItems, m_nCount*sizeof(wxChar *)); + delete [] m_pItems; + + m_pItems = pNew; m_nSize = nSize; } - - m_nCount = 0; } // minimizes the memory usage by freeing unused memory @@ -2419,19 +2437,7 @@ void wxArrayString::assign(const_iterator first, const_iterator last) #if wxUSE_THREADS // need a critical section to protect access to gs_compareFunction and // gs_sortAscending variables - static wxCriticalSection *gs_critsectStringSort = NULL; - - // call this before the value of the global sort vars is changed/after - // you're finished with them - #define START_SORT() wxASSERT( !gs_critsectStringSort ); \ - gs_critsectStringSort = new wxCriticalSection; \ - gs_critsectStringSort->Enter() - #define END_SORT() gs_critsectStringSort->Leave(); \ - delete gs_critsectStringSort; \ - gs_critsectStringSort = NULL -#else // !threads - #define START_SORT() - #define END_SORT() + static wxCriticalSection gs_critsectStringSort; #endif // wxUSE_THREADS // function to use for string comparaison @@ -2462,7 +2468,7 @@ wxStringCompareFunction(const void *first, const void *second) // sort array elements using passed comparaison function void wxArrayString::Sort(CompareFunction compareFunction) { - START_SORT(); + wxCRIT_SECT_LOCKER(lockCmpFunc, gs_critsectStringSort); wxASSERT( !gs_compareFunction ); // must have been reset to NULL gs_compareFunction = compareFunction; @@ -2471,11 +2477,13 @@ void wxArrayString::Sort(CompareFunction compareFunction) // reset it to NULL so that Sort(bool) will work the next time gs_compareFunction = NULL; - - END_SORT(); } -typedef int (wxC_CALLING_CONV * wxStringCompareFn)(const void *first, const void *second); +extern "C" +{ + typedef int (wxC_CALLING_CONV * wxStringCompareFn)(const void *first, + const void *second); +} void wxArrayString::Sort(CompareFunction2 compareFunction) {