X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c08d805c5a3fb6495509fb2e25af4e398ca434cc..c0ac3149bfac1e37fb6eb1a7388603020d319676:/src/common/string.cpp diff --git a/src/common/string.cpp b/src/common/string.cpp index d448b4b306..5ad43a3dea 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()) @@ -29,61 +25,47 @@ #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" #endif #include + +#ifndef __WXWINCE__ + #include +#endif + #include #include #ifdef __SALFORDC__ - #include + #include +#endif + + +// string handling functions used by wxString: +#if wxUSE_UNICODE_UTF8 + #define wxStringMemcpy memcpy + #define wxStringMemcmp memcmp + #define wxStringMemchr memchr + #define wxStringStrlen strlen +#else + #define wxStringMemcpy wxTmemcpy + #define wxStringMemcmp wxTmemcmp + #define wxStringMemchr wxTmemchr + #define wxStringStrlen wxStrlen #endif -// allocating extra space for each string consumes more memory but speeds up -// the concatenation operations (nLen is the current string's length) -// NB: EXTRA_ALLOC must be >= 0! -#define EXTRA_ALLOC (19 - nLen % 16) // --------------------------------------------------------------------------- // static class variables definition // --------------------------------------------------------------------------- -#if !wxUSE_STL - //According to STL _must_ be a -1 size_t - const size_t wxStringBase::npos = (size_t) -1; -#endif - -// ---------------------------------------------------------------------------- -// static data -// ---------------------------------------------------------------------------- - -#if wxUSE_STL - -extern const wxChar WXDLLIMPEXP_BASE *wxEmptyString = _T(""); - -#else - -// for an empty string, GetStringData() will return this address: this -// structure has the same layout as wxStringData and it's data() method will -// return the empty string (dummy pointer) -static const struct -{ - wxStringData data; - wxChar dummy; -} g_strEmpty = { {-1, 0, 0}, wxT('\0') }; - -// empty C style string: points to 'string data' byte of g_strEmpty -extern const wxChar WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dummy; - -#endif +//According to STL _must_ be a -1 size_t +const size_t wxString::npos = (size_t) -1; // ---------------------------------------------------------------------------- // global functions @@ -91,862 +73,425 @@ 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; + return os << str.c_str(); } -#endif // wxUSE_STD_IOSTREAM - -// ---------------------------------------------------------------------------- -// private classes -// ---------------------------------------------------------------------------- - -// this small class is used to gather statistics for performance tuning -//#define WXSTRING_STATISTICS -#ifdef WXSTRING_STATISTICS - class Averager - { - public: - Averager(const wxChar *sz) { m_sz = sz; m_nTotal = m_nCount = 0; } - ~Averager() - { wxPrintf("wxString: average %s = %f\n", m_sz, ((float)m_nTotal)/m_nCount); } - - void Add(size_t n) { m_nTotal += n; m_nCount++; } - - private: - size_t m_nCount, m_nTotal; - const wxChar *m_sz; - } g_averageLength("allocation size"), - g_averageSummandLength("summand length"), - g_averageConcatHit("hit probability in concat"), - g_averageInitialLength("initial string length"); - - #define STATISTICS_ADD(av, val) g_average##av.Add(val) -#else - #define STATISTICS_ADD(av, val) -#endif // WXSTRING_STATISTICS - -#if !wxUSE_STL - -// =========================================================================== -// wxStringData class deallocation -// =========================================================================== - -#if defined(__VISUALC__) && defined(_MT) && !defined(_DLL) -# pragma message (__FILE__ ": building with Multithreaded non DLL runtime has a performance impact on wxString!") -void wxStringData::Free() +wxSTD ostream& operator<<(wxSTD ostream& os, const wxCStrData& str) { - free(this); -} +#if wxUSE_UNICODE && !defined(__BORLANDC__) + return os << str.AsWChar(); +#else + return os << str.AsChar(); #endif - -// =========================================================================== -// wxStringBase -// =========================================================================== - -// takes nLength elements of psz starting at nPos -void wxStringBase::InitWith(const wxChar *psz, size_t nPos, size_t nLength) -{ - Init(); - - // if the length is not given, assume the string to be NUL terminated - if ( nLength == npos ) { - wxASSERT_MSG( nPos <= wxStrlen(psz), _T("index out of bounds") ); - - nLength = wxStrlen(psz + nPos); - } - - STATISTICS_ADD(InitialLength, nLength); - - if ( nLength > 0 ) { - // trailing '\0' is written in AllocBuffer() - if ( !AllocBuffer(nLength) ) { - wxFAIL_MSG( _T("out of memory in wxStringBase::InitWith") ); - return; - } - wxTmemcpy(m_pchData, psz + nPos, 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); -} +#endif // wxUSE_STD_IOSTREAM -wxStringBase::wxStringBase(size_type n, wxChar ch) -{ - Init(); - append(n, ch); -} +// =========================================================================== +// wxString class core +// =========================================================================== // --------------------------------------------------------------------------- -// memory allocation +// construction and conversion // --------------------------------------------------------------------------- -// allocates memory needed to store a C string of length nLen -bool wxStringBase::AllocBuffer(size_t nLen) +#if wxUSE_UNICODE +/* static */ +wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength, + const wxMBConv& conv) { - // allocating 0 sized buffer doesn't make sense, all empty strings should - // reuse g_strEmpty - wxASSERT( nLen > 0 ); - - // make sure that we don't overflow - wxASSERT( nLen < (INT_MAX / sizeof(wxChar)) - - (sizeof(wxStringData) + EXTRA_ALLOC + 1) ); - - STATISTICS_ADD(Length, nLen); + // anything to do? + if ( !psz || nLength == 0 ) + return SubstrBufFromMB(); - // allocate memory: - // 1) one extra character for '\0' termination - // 2) sizeof(wxStringData) for housekeeping info - wxStringData* pData = (wxStringData*) - malloc(sizeof(wxStringData) + (nLen + EXTRA_ALLOC + 1)*sizeof(wxChar)); + if ( nLength == npos ) + nLength = wxNO_LEN; - if ( pData == NULL ) { - // allocation failures are handled by the caller - return false; - } - - pData->nRefs = 1; - pData->nDataLength = nLen; - pData->nAllocLength = nLen + EXTRA_ALLOC; - m_pchData = pData->data(); // data starts after wxStringData - m_pchData[nLen] = wxT('\0'); - return true; + size_t wcLen; + wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen)); + if ( !wcLen ) + return SubstrBufFromMB(); + else + return SubstrBufFromMB(wcBuf, wcLen); } - -// must be called before changing this string -bool wxStringBase::CopyBeforeWrite() +#else +/* static */ +wxString::SubstrBufFromWC wxString::ConvertStr(const wchar_t *pwz, size_t nLength, + const wxMBConv& conv) { - wxStringData* pData = GetStringData(); - - if ( pData->IsShared() ) { - pData->Unlock(); // memory not freed because shared - size_t nLen = pData->nDataLength; - if ( !AllocBuffer(nLen) ) { - // allocation failures are handled by the caller - return false; - } - wxTmemcpy(m_pchData, pData->data(), nLen); - } + // anything to do? + if ( !pwz || nLength == 0 ) + return SubstrBufFromWC(); - wxASSERT( !GetStringData()->IsShared() ); // we must be the only owner + if ( nLength == npos ) + nLength = wxNO_LEN; - return true; + size_t mbLen; + wxCharBuffer mbBuf(conv.cWC2MB(pwz, nLength, &mbLen)); + if ( !mbLen ) + return SubstrBufFromWC(); + else + return SubstrBufFromWC(mbBuf, mbLen); } +#endif -// must be called before replacing contents of this string -bool wxStringBase::AllocBeforeWrite(size_t nLen) -{ - wxASSERT( nLen != 0 ); // doesn't make any sense - // must not share string and must have enough space - wxStringData* pData = GetStringData(); - if ( pData->IsShared() || pData->IsEmpty() ) { - // can't work with old buffer, get new one - pData->Unlock(); - if ( !AllocBuffer(nLen) ) { - // allocation failures are handled by the caller - return false; - } - } - else { - if ( nLen > pData->nAllocLength ) { - // realloc the buffer instead of calling malloc() again, this is more - // efficient - STATISTICS_ADD(Length, nLen); +#if wxUSE_UNICODE - nLen += EXTRA_ALLOC; +// from multibyte string +wxString::wxString(const char *psz, const wxMBConv& conv, size_t nLength) +{ + // FIXME-UTF8: this will need changes - pData = (wxStringData*) - realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); + // anything to do? + if ( psz && nLength != 0 ) + { + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } - if ( pData == NULL ) { - // allocation failures are handled by the caller - // keep previous data since reallocation failed - return false; - } + size_t nLenWide; + wxWCharBuffer wbuf = conv.cMB2WC(psz, nLength, &nLenWide); - pData->nAllocLength = nLen; - m_pchData = pData->data(); + if ( nLenWide ) + assign(wbuf, nLenWide); } - - // now we have enough space, just update the string length - pData->nDataLength = nLen; - } - - wxASSERT( !GetStringData()->IsShared() ); // we must be the only owner - - return true; } -wxStringBase& wxStringBase::append(size_t n, wxChar ch) +wxString::wxString(const char *psz, size_t nLength) { - size_type len = length(); - - if ( !Alloc(len + n) || !CopyBeforeWrite() ) { - wxFAIL_MSG( _T("out of memory in wxStringBase::append") ); - } - GetStringData()->nDataLength = len + n; - m_pchData[len + n] = '\0'; - for ( size_t i = 0; i < n; ++i ) - m_pchData[len + i] = ch; - return *this; + assign(psz, nLength); } -void wxStringBase::resize(size_t nSize, wxChar ch) +//Convert wxString in Unicode mode to a multi-byte string +const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const { - size_t len = length(); - - if ( nSize < len ) - { - erase(begin() + nSize, end()); - } - else if ( nSize > len ) - { - append(nSize - len, ch); - } - //else: we have exactly the specified length, nothing to do + return conv.cWC2MB(c_str(), length() + 1 /* size, not length */, NULL); } -// allocate enough memory for nLen characters -bool wxStringBase::Alloc(size_t nLen) -{ - wxStringData *pData = GetStringData(); - if ( pData->nAllocLength <= nLen ) { - if ( pData->IsEmpty() ) { - nLen += EXTRA_ALLOC; - - wxStringData* pData = (wxStringData*) - malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); +#else // ANSI - if ( pData == NULL ) { - // allocation failure handled by caller - return false; - } +#if wxUSE_WCHAR_T - pData->nRefs = 1; - pData->nDataLength = 0; - pData->nAllocLength = nLen; - m_pchData = pData->data(); // data starts after wxStringData - m_pchData[0u] = wxT('\0'); - } - else if ( pData->IsShared() ) { - pData->Unlock(); // memory not freed because shared - size_t nOldLen = pData->nDataLength; - if ( !AllocBuffer(nLen) ) { - // allocation failure handled by caller - return false; - } - memcpy(m_pchData, pData->data(), nOldLen*sizeof(wxChar)); - } - else { - nLen += EXTRA_ALLOC; +// from wide string +wxString::wxString(const wchar_t *pwz, const wxMBConv& conv, size_t nLength) +{ + // FIXME-UTF8: this will need changes - pData = (wxStringData *) - realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); + // anything to do? + if ( pwz && nLength != 0 ) + { + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } - if ( pData == NULL ) { - // allocation failure handled by caller - // keep previous data since reallocation failed - return false; - } + size_t nLenMB; + wxCharBuffer buf = conv.cWC2MB(pwz, nLength, &nLenMB); - // it's not important if the pointer changed or not (the check for this - // is not faster than assigning to m_pchData in all cases) - pData->nAllocLength = nLen; - m_pchData = pData->data(); + if ( nLenMB ) + assign(buf, nLenMB); } - } - //else: we've already got enough - return true; -} -wxStringBase::iterator wxStringBase::begin() -{ - if (length() > 0) - CopyBeforeWrite(); - return m_pchData; } -wxStringBase::iterator wxStringBase::end() +wxString::wxString(const wchar_t *pwz, size_t nLength) { - if (length() > 0) - CopyBeforeWrite(); - return m_pchData + length(); + assign(pwz, nLength); } -wxStringBase::iterator wxStringBase::erase(iterator it) +//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(const wxMBConv& conv) const { - size_type idx = it - begin(); - erase(idx, 1); - return begin() + idx; + return conv.cMB2WC(c_str(), length() + 1 /* size, not length */, NULL); } -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); +#endif // wxUSE_WCHAR_T - swap(strTmp); - return *this; -} +#endif // Unicode/ANSI -wxStringBase& wxStringBase::insert(size_t nPos, const wxChar *sz, size_t n) +// shrink to minimal size (releasing extra memory) +bool wxString::Shrink() { - wxASSERT( nPos <= length() ); - - 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") ); - } - - 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; + wxString tmp(begin(), end()); + swap(tmp); + return tmp.length() == length(); } -void wxStringBase::swap(wxStringBase& str) +// deprecated compatibility code: +#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8 +wxChar *wxString::GetWriteBuf(size_t nLen) { - wxChar* tmp = str.m_pchData; - str.m_pchData = m_pchData; - m_pchData = tmp; + return DoGetWriteBuf(nLen); } -size_t wxStringBase::find(const wxStringBase& str, size_t nStart) const +void wxString::UngetWriteBuf() { - wxASSERT( str.GetStringData()->IsValid() ); - wxASSERT( nStart <= length() ); - - //anchor - const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart, - str.c_str()[0], - length() - nStart); - - if(!p) - 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; - } - - return (p - c_str() + str.length() <= length()) ? p - c_str() : npos; + DoUngetWriteBuf(); } -size_t wxStringBase::find(const wxChar* sz, size_t nStart, size_t n) const +void wxString::UngetWriteBuf(size_t nLen) { - return find(wxStringBase(sz, n), nStart); + DoUngetWriteBuf(nLen); } +#endif // WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8 -size_t wxStringBase::find(wxChar ch, size_t nStart) const -{ - wxASSERT( nStart <= length() ); - - const wxChar *p = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart); - return p == NULL ? npos : p - c_str(); -} - -size_t wxStringBase::rfind(const wxStringBase& str, size_t nStart) const -{ - wxASSERT( str.GetStringData()->IsValid() ); - wxASSERT( nStart == npos || nStart <= length() ); - - if ( length() >= str.length() ) - { - // avoids a corner case later - if ( length() == 0 && str.length() == 0 ) - return 0; - - // "top" is the point where search starts from - size_t top = length() - str.length(); +// --------------------------------------------------------------------------- +// data access +// --------------------------------------------------------------------------- - if ( nStart == npos ) - nStart = length() - 1; - if ( nStart < top ) - top = nStart; +// all functions are inline in string.h - const wxChar *cursor = c_str() + top; - do - { - if ( wxTmemcmp(cursor, str.c_str(), - str.length()) == 0 ) - { - return cursor - c_str(); - } - } while ( cursor-- > c_str() ); - } +// --------------------------------------------------------------------------- +// assignment operators +// --------------------------------------------------------------------------- - return npos; -} +#if !wxUSE_UNICODE -size_t wxStringBase::rfind(const wxChar* sz, size_t nStart, size_t n) const +// same as 'signed char' variant +wxString& wxString::operator=(const unsigned char* psz) { - return rfind(wxStringBase(sz, n), nStart); + *this = (const char *)psz; + return *this; } -size_t wxStringBase::rfind(wxChar ch, size_t nStart) const +#if wxUSE_WCHAR_T +wxString& wxString::operator=(const wchar_t *pwz) { - if ( nStart == npos ) - { - nStart = length(); - } - else - { - wxASSERT( nStart <= length() ); - } - - const wxChar *actual; - for ( actual = c_str() + ( nStart == npos ? length() : nStart + 1 ); - actual > c_str(); --actual ) - { - if ( *(actual - 1) == ch ) - return (actual - 1) - c_str(); - } - - return npos; + wxString str(pwz); + swap(str); + return *this; } +#endif -size_t wxStringBase::find_first_of(const wxChar* sz, size_t nStart) const -{ - wxASSERT(nStart <= length()); - - size_t len = wxStrlen(sz); - - size_t i; - for(i = nStart; i < this->length(); ++i) - { - if (wxTmemchr(sz, *(c_str() + i), len)) - break; - } - - if(i == this->length()) - return npos; - else - return i; -} +#endif -size_t wxStringBase::find_first_of(const wxChar* sz, size_t nStart, - size_t n) const -{ - return find_first_of(wxStringBase(sz, n), nStart); -} +/* + * concatenation functions come in 5 flavours: + * string + string + * char + string and string + char + * C str + string and string + C str + */ -size_t wxStringBase::find_last_of(const wxChar* sz, size_t nStart) const +wxString operator+(const wxString& str1, const wxString& str2) { - if ( nStart == npos ) - { - nStart = length() - 1; - } - else - { - wxASSERT_MSG( nStart <= length(), - _T("invalid index in find_last_of()") ); - } - - size_t len = wxStrlen(sz); - - for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p ) - { - if ( wxTmemchr(sz, *p, len) ) - return p - c_str(); - } +#if !wxUSE_STL_BASED_WXSTRING + wxASSERT( str1.IsValid() ); + wxASSERT( str2.IsValid() ); +#endif - return npos; -} + wxString s = str1; + s += str2; -size_t wxStringBase::find_last_of(const wxChar* sz, size_t nStart, - size_t n) const -{ - return find_last_of(wxStringBase(sz, n), nStart); + return s; } -size_t wxStringBase::find_first_not_of(const wxChar* sz, size_t nStart) const +wxString operator+(const wxString& str, wxUniChar ch) { - if ( nStart == npos ) - { - nStart = length(); - } - else - { - wxASSERT( nStart <= length() ); - } - - size_t len = wxStrlen(sz); - - size_t i; - for(i = nStart; i < this->length(); ++i) - { - if (!wxTmemchr(sz, *(c_str() + i), len)) - break; - } +#if !wxUSE_STL_BASED_WXSTRING + wxASSERT( str.IsValid() ); +#endif - if(i == this->length()) - return npos; - else - return i; -} + wxString s = str; + s += ch; -size_t wxStringBase::find_first_not_of(const wxChar* sz, size_t nStart, - size_t n) const -{ - return find_first_not_of(wxStringBase(sz, n), nStart); + return s; } -size_t wxStringBase::find_first_not_of(wxChar ch, size_t nStart) const +wxString operator+(wxUniChar ch, const wxString& str) { - wxASSERT( nStart <= length() ); +#if !wxUSE_STL_BASED_WXSTRING + wxASSERT( str.IsValid() ); +#endif - for ( const wxChar *p = c_str() + nStart; *p; p++ ) - { - if ( *p != ch ) - return p - c_str(); - } + wxString s = ch; + s += str; - return npos; + return s; } -size_t wxStringBase::find_last_not_of(const wxChar* sz, size_t nStart) const +wxString operator+(const wxString& str, const char *psz) { - if ( nStart == npos ) - { - nStart = length() - 1; - } - else - { - wxASSERT( nStart <= length() ); - } - - size_t len = wxStrlen(sz); +#if !wxUSE_STL_BASED_WXSTRING + wxASSERT( str.IsValid() ); +#endif - for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p ) - { - if ( !wxTmemchr(sz, *p,len) ) - return p - c_str(); + wxString s; + if ( !s.Alloc(strlen(psz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); } + s += str; + s += psz; - return npos; -} - -size_t wxStringBase::find_last_not_of(const wxChar* sz, size_t nStart, - size_t n) const -{ - return find_last_not_of(wxStringBase(sz, n), nStart); + return s; } -size_t wxStringBase::find_last_not_of(wxChar ch, size_t nStart) const +wxString operator+(const wxString& str, const wchar_t *pwz) { - if ( nStart == npos ) - { - nStart = length() - 1; - } - else - { - wxASSERT( nStart <= length() ); - } +#if !wxUSE_STL_BASED_WXSTRING + wxASSERT( str.IsValid() ); +#endif - for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p ) - { - if ( *p != ch ) - return p - c_str(); + wxString s; + if ( !s.Alloc(wxWcslen(pwz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); } + s += str; + s += pwz; - return npos; -} - -wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, - const wxChar *sz) -{ - wxASSERT_MSG( nStart <= length(), - _T("index out of bounds in wxStringBase::replace") ); - size_t strLen = length() - nStart; - nLen = strLen < nLen ? strLen : nLen; - - wxStringBase strTmp; - strTmp.reserve(length()); // micro optimisation to avoid multiple mem allocs - - if ( nStart != 0 ) - strTmp.append(c_str(), nStart); - strTmp.append(sz); - strTmp.append(c_str() + nStart + nLen); - - swap(strTmp); - return *this; -} - -wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, - size_t nCount, wxChar ch) -{ - return replace(nStart, nLen, wxStringBase(nCount, ch).c_str()); + return s; } -wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, - const wxStringBase& str, - size_t nStart2, size_t nLen2) +wxString operator+(const char *psz, const wxString& str) { - return replace(nStart, nLen, str.substr(nStart2, nLen2)); -} +#if !wxUSE_STL_BASED_WXSTRING + wxASSERT( str.IsValid() ); +#endif -wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, - const wxChar* sz, size_t nCount) -{ - return replace(nStart, nLen, wxStringBase(sz, nCount).c_str()); -} + wxString s; + if ( !s.Alloc(strlen(psz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); + } + s = psz; + s += str; -wxStringBase wxStringBase::substr(size_t nStart, size_t nLen) const -{ - if ( nLen == npos ) - nLen = length() - nStart; - return wxStringBase(*this, nStart, nLen); + return s; } -// assigns one string to another -wxStringBase& wxStringBase::operator=(const wxStringBase& stringSrc) +wxString operator+(const wchar_t *pwz, const wxString& str) { - wxASSERT( stringSrc.GetStringData()->IsValid() ); +#if !wxUSE_STL_BASED_WXSTRING + wxASSERT( str.IsValid() ); +#endif - // don't copy string over itself - if ( m_pchData != stringSrc.m_pchData ) { - if ( stringSrc.GetStringData()->IsEmpty() ) { - Reinit(); - } - else { - // adjust references - GetStringData()->Unlock(); - m_pchData = stringSrc.m_pchData; - GetStringData()->Lock(); + wxString s; + if ( !s.Alloc(wxWcslen(pwz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); } - } + s = pwz; + s += str; - return *this; + return s; } -// assigns a single character -wxStringBase& wxStringBase::operator=(wxChar ch) -{ - if ( !AssignCopy(1, &ch) ) { - wxFAIL_MSG( _T("out of memory in wxStringBase::operator=(wxChar)") ); - } - return *this; -} +// --------------------------------------------------------------------------- +// string comparison +// --------------------------------------------------------------------------- -// assigns C string -wxStringBase& wxStringBase::operator=(const wxChar *psz) -{ - if ( !AssignCopy(wxStrlen(psz), psz) ) { - wxFAIL_MSG( _T("out of memory in wxStringBase::operator=(const wxChar *)") ); - } - return *this; -} +#ifdef HAVE_STD_STRING_COMPARE -// helper function: does real copy -bool wxStringBase::AssignCopy(size_t nSrcLen, const wxChar *pszSrcData) +// NB: Comparison code (both if HAVE_STD_STRING_COMPARE and if not) works with +// UTF-8 encoded strings too, thanks to UTF-8's design which allows us to +// sort strings in characters code point order by sorting the byte sequence +// in byte values order (i.e. what strcmp() and memcmp() do). + +int wxString::compare(const wxString& str) const { - if ( nSrcLen == 0 ) { - Reinit(); - } - else { - if ( !AllocBeforeWrite(nSrcLen) ) { - // allocation failure handled by caller - return false; - } - memcpy(m_pchData, pszSrcData, nSrcLen*sizeof(wxChar)); - GetStringData()->nDataLength = nSrcLen; - m_pchData[nSrcLen] = wxT('\0'); - } - return true; + return m_impl.compare(str.m_impl); } -// --------------------------------------------------------------------------- -// string concatenation -// --------------------------------------------------------------------------- - -// add something to this string -bool wxStringBase::ConcatSelf(size_t nSrcLen, const wxChar *pszSrcData, - size_t nMaxLen) +int wxString::compare(size_t nStart, size_t nLen, + const wxString& str) const { - STATISTICS_ADD(SummandLength, nSrcLen); - - nSrcLen = nSrcLen < nMaxLen ? nSrcLen : nMaxLen; + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); + return m_impl.compare(pos, len, str.m_impl); +} - // concatenating an empty string is a NOP - if ( nSrcLen > 0 ) { - wxStringData *pData = GetStringData(); - size_t nLen = pData->nDataLength; - size_t nNewLen = nLen + nSrcLen; +int wxString::compare(size_t nStart, size_t nLen, + const wxString& str, + size_t nStart2, size_t nLen2) const +{ + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); - // alloc new buffer if current is too small - if ( pData->IsShared() ) { - STATISTICS_ADD(ConcatHit, 0); + size_t pos2, len2; + str.PosLenToImpl(nStart2, nLen2, &pos2, &len2); - // we have to allocate another buffer - wxStringData* pOldData = GetStringData(); - if ( !AllocBuffer(nNewLen) ) { - // allocation failure handled by caller - return false; - } - memcpy(m_pchData, pOldData->data(), nLen*sizeof(wxChar)); - pOldData->Unlock(); - } - else if ( nNewLen > pData->nAllocLength ) { - STATISTICS_ADD(ConcatHit, 0); + return m_impl.compare(pos, len, str.m_impl, pos2, len2); +} - reserve(nNewLen); - // we have to grow the buffer - if ( capacity() < nNewLen ) { - // allocation failure handled by caller - return false; - } - } - else { - STATISTICS_ADD(ConcatHit, 1); +int wxString::compare(const char* sz) const +{ + return m_impl.compare(ImplStr(sz)); +} - // the buffer is already big enough - } +int wxString::compare(const wchar_t* sz) const +{ + return m_impl.compare(ImplStr(sz)); +} - // should be enough space - wxASSERT( nNewLen <= GetStringData()->nAllocLength ); +int wxString::compare(size_t nStart, size_t nLen, + const char* sz, size_t nCount) const +{ + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); - // fast concatenation - all is done in our buffer - memcpy(m_pchData + nLen, pszSrcData, nSrcLen*sizeof(wxChar)); + SubstrBufFromMB str(ImplStr(sz, nCount)); - m_pchData[nNewLen] = wxT('\0'); // put terminating '\0' - GetStringData()->nDataLength = nNewLen; // and fix the length - } - //else: the string to append was empty - return true; + return m_impl.compare(pos, len, str.data, str.len); } -// --------------------------------------------------------------------------- -// simple sub-string extraction -// --------------------------------------------------------------------------- - -// helper function: clone the data attached to this string -bool wxStringBase::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) const +int wxString::compare(size_t nStart, size_t nLen, + const wchar_t* sz, size_t nCount) const { - if ( nCopyLen == 0 ) { - dest.Init(); - } - else { - if ( !dest.AllocBuffer(nCopyLen) ) { - // allocation failure handled by caller - return false; - } - memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(wxChar)); - } - return true; -} + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); -#endif // !wxUSE_STL + SubstrBufFromWC str(ImplStr(sz, nCount)); -#if !wxUSE_STL || !defined(HAVE_STD_STRING_COMPARE) + return m_impl.compare(pos, len, str.data, str.len); +} -#if !wxUSE_STL - #define STRINGCLASS wxStringBase -#else - #define STRINGCLASS wxString -#endif +#else // !HAVE_STD_STRING_COMPARE -static inline int wxDoCmp(const wxChar* s1, size_t l1, - const wxChar* s2, size_t l2) +static inline int wxDoCmp(const wxStringCharType* s1, size_t l1, + const wxStringCharType* s2, size_t l2) { if( l1 == l2 ) - return wxTmemcmp(s1, s2, l1); + return wxStringMemcmp(s1, s2, l1); else if( l1 < l2 ) { - int ret = wxTmemcmp(s1, s2, l1); + int ret = wxStringMemcmp(s1, s2, l1); return ret == 0 ? -1 : ret; } else { - int ret = wxTmemcmp(s1, s2, l2); + int ret = wxStringMemcmp(s1, s2, l2); return ret == 0 ? +1 : ret; } } -int STRINGCLASS::compare(const wxStringBase& str) const +int wxString::compare(const wxString& str) const { - return ::wxDoCmp(data(), length(), str.data(), str.length()); + return ::wxDoCmp(m_impl.data(), m_impl.length(), + str.m_impl.data(), str.m_impl.length()); } -int STRINGCLASS::compare(size_t nStart, size_t nLen, - const wxStringBase& str) const +int wxString::compare(size_t nStart, size_t nLen, + const wxString& str) const { wxASSERT(nStart <= length()); size_type strLen = length() - nStart; nLen = strLen < nLen ? strLen : nLen; - return ::wxDoCmp(data() + nStart, nLen, str.data(), str.length()); + + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); + + return ::wxDoCmp(m_impl.data() + pos, len, + str.m_impl.data(), str.m_impl.length()); } -int STRINGCLASS::compare(size_t nStart, size_t nLen, - const wxStringBase& str, - size_t nStart2, size_t nLen2) const +int wxString::compare(size_t nStart, size_t nLen, + const wxString& str, + size_t nStart2, size_t nLen2) const { wxASSERT(nStart <= length()); wxASSERT(nStart2 <= str.length()); @@ -954,357 +499,283 @@ int STRINGCLASS::compare(size_t nStart, size_t nLen, strLen2 = str.length() - nStart2; nLen = strLen < nLen ? strLen : nLen; nLen2 = strLen2 < nLen2 ? strLen2 : nLen2; - return ::wxDoCmp(data() + nStart, nLen, str.data() + nStart2, nLen2); + + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); + size_t pos2, len2; + str.PosLenToImpl(nStart2, nLen2, &pos2, &len2); + + return ::wxDoCmp(m_impl.data() + pos, len, + str.m_impl.data() + pos2, len2); +} + +int wxString::compare(const char* sz) const +{ + SubstrBufFromMB str(ImplStr(sz, npos)); + if ( str.len == npos ) + str.len = wxStringStrlen(str.data); + return ::wxDoCmp(m_impl.data(), m_impl.length(), str.data, str.len); } -int STRINGCLASS::compare(const wxChar* sz) const +int wxString::compare(const wchar_t* sz) const { - size_t nLen = wxStrlen(sz); - return ::wxDoCmp(data(), length(), sz, nLen); + SubstrBufFromWC str(ImplStr(sz, npos)); + if ( str.len == npos ) + str.len = wxStringStrlen(str.data); + return ::wxDoCmp(m_impl.data(), m_impl.length(), str.data, str.len); } -int STRINGCLASS::compare(size_t nStart, size_t nLen, - const wxChar* sz, size_t nCount) const +int wxString::compare(size_t nStart, size_t nLen, + const char* sz, size_t nCount) const { wxASSERT(nStart <= length()); size_type strLen = length() - nStart; nLen = strLen < nLen ? strLen : nLen; - if( nCount == npos ) - nCount = wxStrlen(sz); - return ::wxDoCmp(data() + nStart, nLen, sz, nCount); + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); + + SubstrBufFromMB str(ImplStr(sz, nCount)); + if ( str.len == npos ) + str.len = wxStringStrlen(str.data); + + return ::wxDoCmp(m_impl.data() + pos, len, str.data, str.len); } -#undef STRINGCLASS +int wxString::compare(size_t nStart, size_t nLen, + const wchar_t* sz, size_t nCount) const +{ + wxASSERT(nStart <= length()); + size_type strLen = length() - nStart; + nLen = strLen < nLen ? strLen : nLen; -#endif // !wxUSE_STL || !defined(HAVE_STD_STRING_COMPARE) + size_t pos, len; + PosLenToImpl(nStart, nLen, &pos, &len); -// =========================================================================== -// wxString class core -// =========================================================================== + SubstrBufFromWC str(ImplStr(sz, nCount)); + if ( str.len == npos ) + str.len = wxStringStrlen(str.data); -// --------------------------------------------------------------------------- -// construction and conversion -// --------------------------------------------------------------------------- + return ::wxDoCmp(m_impl.data() + pos, len, str.data, str.len); +} -#if wxUSE_UNICODE +#endif // HAVE_STD_STRING_COMPARE/!HAVE_STD_STRING_COMPARE -// from multibyte string -wxString::wxString(const char *psz, 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; - } +// --------------------------------------------------------------------------- +// find_{first,last}_[not]_of functions +// --------------------------------------------------------------------------- +#if !wxUSE_STL_BASED_WXSTRING || wxUSE_UNICODE_UTF8 - // anything to do? - if ( (nLen != 0) && (nLen != (size_t)-1) ) - { - //Convert string - size_t nRealSize; - wxWCharBuffer theBuffer = conv.cMB2WC(psz, nLen, &nRealSize); +// NB: All these functions are implemented with the argument being wxChar*, +// i.e. widechar string in any Unicode build, even though native string +// representation is char* in the UTF-8 build. This is because we couldn't +// use memchr() to determine if a character is in a set encoded as UTF-8. - //Copy - if (nRealSize) - assign( theBuffer.data() , nRealSize - 1 ); - } +size_t wxString::find_first_of(const wxChar* sz, size_t nStart) const +{ + return find_first_of(sz, nStart, wxStrlen(sz)); } -//Convert wxString in Unicode mode to a multi-byte string -const wxCharBuffer wxString::mb_str(wxMBConv& conv) const +size_t wxString::find_first_not_of(const wxChar* sz, size_t nStart) const { - size_t dwOutSize; - return conv.cWC2MB(c_str(), length(), &dwOutSize); + return find_first_not_of(sz, nStart, wxStrlen(sz)); } -#else // ANSI - -#if wxUSE_WCHAR_T -// from wide string -wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength) +size_t wxString::find_first_of(const wxChar* sz, size_t nStart, size_t n) const { - // 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(); - } + wxASSERT_MSG( nStart <= length(), _T("invalid index") ); - // 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 + size_t idx = nStart; + for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i ) { - // nothing to convert - nLen = 0; + if ( wxTmemchr(sz, *i, n) ) + return idx; } - // anything to do? - if ( (nLen != 0) && (nLen != (size_t)-1) ) - { - //Convert string - size_t nRealSize; - wxCharBuffer theBuffer = conv.cWC2MB(pwz, nLen, &nRealSize); - - //Copy - if (nRealSize) - assign( theBuffer.data() , nRealSize - 1 ); - } + return npos; } -//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 +size_t wxString::find_first_not_of(const wxChar* sz, size_t nStart, size_t n) const { - size_t dwOutSize; - return conv.cMB2WC(c_str(), length(), &dwOutSize); -} - -#endif // wxUSE_WCHAR_T + wxASSERT_MSG( nStart <= length(), _T("invalid index") ); -#endif // Unicode/ANSI + size_t idx = nStart; + for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i ) + { + if ( !wxTmemchr(sz, *i, n) ) + return idx; + } -// shrink to minimal size (releasing extra memory) -bool wxString::Shrink() -{ - wxString tmp(begin(), end()); - swap(tmp); - return tmp.length() == length(); + return npos; } -#if !wxUSE_STL -// get the pointer to writable buffer of (at least) nLen bytes -wxChar *wxString::GetWriteBuf(size_t nLen) -{ - if ( !AllocBeforeWrite(nLen) ) { - // allocation failure handled by caller - return NULL; - } - - wxASSERT( GetStringData()->nRefs == 1 ); - GetStringData()->Validate(false); - - return m_pchData; -} -// put string back in a reasonable state after GetWriteBuf -void wxString::UngetWriteBuf() +size_t wxString::find_last_of(const wxChar* sz, size_t nStart) const { - GetStringData()->nDataLength = wxStrlen(m_pchData); - GetStringData()->Validate(true); + return find_last_of(sz, nStart, wxStrlen(sz)); } -void wxString::UngetWriteBuf(size_t nLen) +size_t wxString::find_last_not_of(const wxChar* sz, size_t nStart) const { - GetStringData()->nDataLength = nLen; - GetStringData()->Validate(true); + return find_last_not_of(sz, nStart, wxStrlen(sz)); } -#endif - -// --------------------------------------------------------------------------- -// data access -// --------------------------------------------------------------------------- -// all functions are inline in string.h +size_t wxString::find_last_of(const wxChar* sz, size_t nStart, size_t n) const +{ + size_t len = length(); -// --------------------------------------------------------------------------- -// assignment operators -// --------------------------------------------------------------------------- + if ( nStart == npos ) + { + nStart = len - 1; + } + else + { + wxASSERT_MSG( nStart <= len, _T("invalid index") ); + } -#if !wxUSE_UNICODE + size_t idx = nStart; + for ( const_reverse_iterator i = rbegin() + (len - nStart - 1); + i != rend(); --idx, ++i ) + { + if ( wxTmemchr(sz, *i, n) ) + return idx; + } -// same as 'signed char' variant -wxString& wxString::operator=(const unsigned char* psz) -{ - *this = (const char *)psz; - return *this; + return npos; } -#if wxUSE_WCHAR_T -wxString& wxString::operator=(const wchar_t *pwz) +size_t wxString::find_last_not_of(const wxChar* sz, size_t nStart, size_t n) const { - wxString str(pwz); - swap(str); - return *this; -} -#endif - -#endif - -/* - * concatenation functions come in 5 flavours: - * string + string - * char + string and string + char - * C str + string and string + C str - */ + size_t len = length(); -wxString operator+(const wxString& str1, const wxString& str2) -{ -#if !wxUSE_STL - wxASSERT( str1.GetStringData()->IsValid() ); - wxASSERT( str2.GetStringData()->IsValid() ); -#endif + if ( nStart == npos ) + { + nStart = len - 1; + } + else + { + wxASSERT_MSG( nStart <= len, _T("invalid index") ); + } - wxString s = str1; - s += str2; + size_t idx = nStart; + for ( const_reverse_iterator i = rbegin() + (len - nStart - 1); + i != rend(); --idx, ++i ) + { + if ( !wxTmemchr(sz, *i, n) ) + return idx; + } - return s; + return npos; } -wxString operator+(const wxString& str, wxChar ch) +size_t wxString::find_first_not_of(wxUniChar ch, size_t nStart) const { -#if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); -#endif + wxASSERT_MSG( nStart <= length(), _T("invalid index") ); - wxString s = str; - s += ch; + size_t idx = nStart; + for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i ) + { + if ( *i != ch ) + return idx; + } - return s; + return npos; } -wxString operator+(wxChar ch, const wxString& str) +size_t wxString::find_last_not_of(wxUniChar ch, size_t nStart) const { -#if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); -#endif - - wxString s = ch; - s += str; - - return s; -} + size_t len = length(); -wxString operator+(const wxString& str, const wxChar *psz) -{ -#if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); -#endif + if ( nStart == npos ) + { + nStart = len - 1; + } + else + { + wxASSERT_MSG( nStart <= len, _T("invalid index") ); + } - wxString s; - if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) { - wxFAIL_MSG( _T("out of memory in wxString::operator+") ); - } - s += str; - s += psz; + size_t idx = nStart; + for ( const_reverse_iterator i = rbegin() + (len - nStart - 1); + i != rend(); --idx, ++i ) + { + if ( *i != ch ) + return idx; + } - return s; + return npos; } -wxString operator+(const wxChar *psz, const wxString& str) -{ -#if !wxUSE_STL - wxASSERT( str.GetStringData()->IsValid() ); +// the functions above were implemented for wchar_t* arguments in Unicode +// build and char* in ANSI build; below are implementations for the other +// version: +#if wxUSE_UNICODE + #define wxOtherCharType char + #define STRCONV (const wxChar*)wxConvLibc.cMB2WC +#else + #define wxOtherCharType wchar_t + #define STRCONV (const wxChar*)wxConvLibc.cWC2MB #endif - wxString s; - if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) { - wxFAIL_MSG( _T("out of memory in wxString::operator+") ); - } - s = psz; - s += str; +size_t wxString::find_first_of(const wxOtherCharType* sz, size_t nStart) const + { return find_first_of(STRCONV(sz), nStart); } + +size_t wxString::find_first_of(const wxOtherCharType* sz, size_t nStart, + size_t n) const + { return find_first_of(STRCONV(sz, n, NULL), nStart, n); } +size_t wxString::find_last_of(const wxOtherCharType* sz, size_t nStart) const + { return find_last_of(STRCONV(sz), nStart); } +size_t wxString::find_last_of(const wxOtherCharType* sz, size_t nStart, + size_t n) const + { return find_last_of(STRCONV(sz, n, NULL), nStart, n); } +size_t wxString::find_first_not_of(const wxOtherCharType* sz, size_t nStart) const + { return find_first_not_of(STRCONV(sz), nStart); } +size_t wxString::find_first_not_of(const wxOtherCharType* sz, size_t nStart, + size_t n) const + { return find_first_not_of(STRCONV(sz, n, NULL), nStart, n); } +size_t wxString::find_last_not_of(const wxOtherCharType* sz, size_t nStart) const + { return find_last_not_of(STRCONV(sz), nStart); } +size_t wxString::find_last_not_of(const wxOtherCharType* sz, size_t nStart, + size_t n) const + { return find_last_not_of(STRCONV(sz, n, NULL), nStart, n); } - return s; -} +#undef wxOtherCharType +#undef STRCONV + +#endif // !wxUSE_STL_BASED_WXSTRING || wxUSE_UNICODE_UTF8 // =========================================================================== // other common string functions // =========================================================================== -int wxString::Cmp(const wxString& s) const -{ - return compare(s); -} - -int wxString::Cmp(const wxChar* psz) const +int wxString::CmpNoCase(const wxString& s) const { - return compare(psz); -} + // FIXME-UTF8: use wxUniChar::ToLower/ToUpper once added -static inline int wxDoCmpNoCase(const wxChar* s1, size_t l1, - const wxChar* s2, size_t l2) -{ - size_t i; + size_t idx = 0; + const_iterator i1 = begin(); + const_iterator end1 = end(); + const_iterator i2 = s.begin(); + const_iterator end2 = s.end(); - if( l1 == l2 ) - { - for(i = 0; i < l1; ++i) - { - if(wxTolower(s1[i]) != wxTolower(s2[i])) - break; - } - return i == l1 ? 0 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1; - } - else if( l1 < l2 ) - { - for(i = 0; i < l1; ++i) - { - if(wxTolower(s1[i]) != wxTolower(s2[i])) - break; - } - return i == l1 ? -1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1; - } - else + for ( ; i1 != end1 && i2 != end2; ++idx, ++i1, ++i2 ) { - for(i = 0; i < l2; ++i) - { - if(wxTolower(s1[i]) != wxTolower(s2[i])) - break; - } - return i == l2 ? 1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1; + wxUniChar lower1 = (wxChar)wxTolower(*i1); + wxUniChar lower2 = (wxChar)wxTolower(*i2); + if ( lower1 != lower2 ) + return lower1 < lower2 ? -1 : 1; } -} - -int wxString::CmpNoCase(const wxString& s) const -{ - return wxDoCmpNoCase(data(), length(), s.data(), s.length()); -} -int wxString::CmpNoCase(const wxChar* psz) const -{ - int nLen = wxStrlen(psz); + size_t len1 = length(); + size_t len2 = s.length(); - return wxDoCmpNoCase(data(), length(), psz, nLen); + if ( len1 < len2 ) + return -1; + else if ( len1 > len2 ) + return 1; + return 0; } @@ -1377,32 +848,33 @@ 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 @@ -1434,6 +906,27 @@ 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(wx_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 { @@ -1449,14 +942,14 @@ wxString wxString::Right(size_t nCount) const // get all characters after the last occurence of ch // (returns the whole string if ch not found) -wxString wxString::AfterLast(wxChar ch) const +wxString wxString::AfterLast(wxUniChar ch) const { wxString str; int iPos = Find(ch, true); if ( iPos == wxNOT_FOUND ) str = *this; else - str = c_str() + iPos + 1; + str = wx_str() + iPos + 1; return str; } @@ -1476,7 +969,7 @@ wxString wxString::Left(size_t nCount) const // get all characters before the first occurence of ch // (returns the whole string if ch not found) -wxString wxString::BeforeFirst(wxChar ch) const +wxString wxString::BeforeFirst(wxUniChar ch) const { int iPos = Find(ch); if ( iPos == wxNOT_FOUND ) iPos = length(); @@ -1485,7 +978,7 @@ wxString wxString::BeforeFirst(wxChar ch) const /// get all characters before the last occurence of ch /// (returns empty string if ch not found) -wxString wxString::BeforeLast(wxChar ch) const +wxString wxString::BeforeLast(wxUniChar ch) const { wxString str; int iPos = Find(ch, true); @@ -1497,66 +990,57 @@ wxString wxString::BeforeLast(wxChar ch) const /// get all characters after the first occurence of ch /// (returns empty string if ch not found) -wxString wxString::AfterFirst(wxChar ch) const +wxString wxString::AfterFirst(wxUniChar ch) const { wxString str; int iPos = Find(ch); if ( iPos != wxNOT_FOUND ) - str = c_str() + iPos + 1; + str = wx_str() + iPos + 1; return str; } // 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 - - uiCount++; - - // stop now? - if ( !bReplaceAll ) { - strTemp += pCurrent; // copy the rest - break; // exit the loop - } - } - } + 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); + + //move up pos past the string that was replaced + dwPos += uiNewLen; + + //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 @@ -1633,66 +1117,66 @@ 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))) - ) - ) - { - if ( bFromRight ) - { - // find last non-space character - iterator psz = begin() + length() - 1; - while ( wxSafeIsspace(*psz) && (psz >= begin()) ) - psz--; - - // truncate at trailing space start - *++psz = wxT('\0'); - erase(psz, end()); - } - else +{ + // first check if we're going to modify the string at all + if ( !empty() && + ( + (bFromRight && wxSafeIsspace(GetChar(length() - 1))) || + (!bFromRight && wxSafeIsspace(GetChar(0u))) + ) + ) { - // find first non-space character - iterator psz = begin(); - while ( wxSafeIsspace(*psz) ) - psz++; + if ( bFromRight ) + { + // find last non-space character + reverse_iterator psz = rbegin(); + while ( (psz != rend()) && 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& wxString::Pad(size_t nCount, wxUniChar 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; } // --------------------------------------------------------------------------- @@ -1700,64 +1184,106 @@ wxString& wxString::Truncate(size_t uiLen) // --------------------------------------------------------------------------- // find a character -int wxString::Find(wxChar ch, bool bFromEnd) const +int wxString::Find(wxUniChar 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((const wxChar*)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((const wxChar*)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((const wxChar*)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((const wxChar*)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 + ; } // --------------------------------------------------------------------------- @@ -1765,13 +1291,17 @@ bool wxString::ToDouble(double *val) const // --------------------------------------------------------------------------- /* static */ -wxString wxString::Format(const wxChar *pszFormat, ...) +#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN +wxString wxStringPrintfMixinBase::DoFormat(const wxChar *format, ...) +#else +wxString wxString::DoFormat(const wxChar *format, ...) +#endif { va_list argptr; - va_start(argptr, pszFormat); + va_start(argptr, format); wxString s; - s.PrintfV(pszFormat, argptr); + s.PrintfV(format, argptr); va_end(argptr); @@ -1779,72 +1309,104 @@ wxString wxString::Format(const wxChar *pszFormat, ...) } /* static */ -wxString wxString::FormatV(const wxChar *pszFormat, va_list argptr) +wxString wxString::FormatV(const wxString& format, va_list argptr) { wxString s; - s.PrintfV(pszFormat, argptr); + s.PrintfV(format, argptr); return s; } -int wxString::Printf(const wxChar *pszFormat, ...) +#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN +int wxStringPrintfMixinBase::DoPrintf(const wxChar *format, ...) +#else +int wxString::DoPrintf(const wxChar *format, ...) +#endif { - va_list argptr; - va_start(argptr, pszFormat); + va_list argptr; + va_start(argptr, format); + +#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN + // get a pointer to the wxString instance; we have to use dynamic_cast<> + // because it's the only cast that works safely for downcasting when + // multiple inheritance is used: + wxString *str = static_cast(this); +#else + wxString *str = this; +#endif - int iLen = PrintfV(pszFormat, argptr); + int iLen = str->PrintfV(format, argptr); - va_end(argptr); + va_end(argptr); - return iLen; + return iLen; } -int wxString::PrintfV(const wxChar* pszFormat, va_list argptr) +int wxString::PrintfV(const wxString& format, 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; - - 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); - 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'); + // 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, format, 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'); + // 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 - if ( len >= 0 && len <= size ) + // buffer were large enough (newer standards such as Unix98) + if ( len < 0 ) + { +#if wxUSE_WXVSNPRINTF + // we know that our own implementation of wxVsnprintf() returns -1 + // only for a format error - thus there's something wrong with + // the user's format string + return -1; +#else // assume that system version only returns error if not enough space + // still not enough, as we don't know how much we need, double the + // current size of the buffer + size *= 2; +#endif // wxUSE_WXVSNPRINTF/!wxUSE_WXVSNPRINTF + } + else if ( len >= size ) + { +#if wxUSE_WXVSNPRINTF + // we know that our own implementation of wxVsnprintf() returns + // size+1 when there's not enough space but that's not the size + // of the required buffer! + size *= 2; // so we just double the current size of the buffer +#else + // some vsnprintf() implementations NUL-terminate the buffer and + // some don't in len == size case, to be safe always add 1 + size = len + 1; +#endif + } + 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(); } // ---------------------------------------------------------------------------- @@ -1990,13 +1552,12 @@ match: } // Count the number of chars -int wxString::Freq(wxChar ch) const +int wxString::Freq(wxUniChar ch) const { int count = 0; - int len = Len(); - for (int i = 0; i < len; i++) + for ( const_iterator i = begin(); i != end(); ++i ) { - if (GetChar(i) == ch) + if ( *i == ch ) count ++; } return count; @@ -2009,500 +1570,3 @@ wxString wxString::Upper() const // convert to lower case, return the copy of the string wxString wxString::Lower() const { wxString s(*this); return s.MakeLower(); } -int wxString::sprintf(const wxChar *pszFormat, ...) - { - va_list argptr; - va_start(argptr, pszFormat); - int iLen = PrintfV(pszFormat, argptr); - va_end(argptr); - return iLen; - } - -// ============================================================================ -// ArrayString -// ============================================================================ - -#include "wx/arrstr.h" - -#if !wxUSE_STL - -// size increment = min(50% of current size, ARRAY_MAXSIZE_INCREMENT) -#define ARRAY_MAXSIZE_INCREMENT 4096 - -#ifndef ARRAY_DEFAULT_INITIAL_SIZE // also defined in dynarray.h -#define ARRAY_DEFAULT_INITIAL_SIZE (16) -#endif - -#define STRING(p) ((wxString *)(&(p))) - -// ctor -void wxArrayString::Init(bool autoSort) -{ - m_nSize = - m_nCount = 0; - m_pItems = (wxChar **) NULL; - m_autoSort = autoSort; -} - -// copy ctor -wxArrayString::wxArrayString(const wxArrayString& src) -{ - Init(src.m_autoSort); - - *this = src; -} - -// assignment operator -wxArrayString& wxArrayString::operator=(const wxArrayString& src) -{ - if ( m_nSize > 0 ) - Clear(); - - Copy(src); - - m_autoSort = src.m_autoSort; - - return *this; -} - -void wxArrayString::Copy(const wxArrayString& src) -{ - if ( src.m_nCount > ARRAY_DEFAULT_INITIAL_SIZE ) - Alloc(src.m_nCount); - - for ( size_t n = 0; n < src.m_nCount; n++ ) - Add(src[n]); -} - -// grow the array -void wxArrayString::Grow(size_t nIncrement) -{ - // only do it if no more place - if ( (m_nSize - m_nCount) < nIncrement ) { - // if ARRAY_DEFAULT_INITIAL_SIZE were set to 0, the initially empty would - // be never resized! - #if ARRAY_DEFAULT_INITIAL_SIZE == 0 - #error "ARRAY_DEFAULT_INITIAL_SIZE must be > 0!" - #endif - - if ( m_nSize == 0 ) { - // was empty, alloc some memory - m_nSize = ARRAY_DEFAULT_INITIAL_SIZE; - if (m_nSize < nIncrement) - m_nSize = nIncrement; - m_pItems = new wxChar *[m_nSize]; - } - else { - // otherwise when it's called for the first time, nIncrement would be 0 - // and the array would never be expanded - // add 50% but not too much - size_t ndefIncrement = m_nSize < ARRAY_DEFAULT_INITIAL_SIZE - ? ARRAY_DEFAULT_INITIAL_SIZE : m_nSize >> 1; - if ( ndefIncrement > ARRAY_MAXSIZE_INCREMENT ) - ndefIncrement = ARRAY_MAXSIZE_INCREMENT; - if ( nIncrement < ndefIncrement ) - nIncrement = ndefIncrement; - m_nSize += nIncrement; - wxChar **pNew = new wxChar *[m_nSize]; - - // copy data to new location - memcpy(pNew, m_pItems, m_nCount*sizeof(wxChar *)); - - // delete old memory (but do not release the strings!) - wxDELETEA(m_pItems); - - m_pItems = pNew; - } - } -} - -void wxArrayString::Free() -{ - for ( size_t n = 0; n < m_nCount; n++ ) { - STRING(m_pItems[n])->GetStringData()->Unlock(); - } -} - -// deletes all the strings from the list -void wxArrayString::Empty() -{ - Free(); - - m_nCount = 0; -} - -// as Empty, but also frees memory -void wxArrayString::Clear() -{ - Free(); - - m_nSize = - m_nCount = 0; - - wxDELETEA(m_pItems); -} - -// dtor -wxArrayString::~wxArrayString() -{ - Free(); - - wxDELETEA(m_pItems); -} - -void wxArrayString::reserve(size_t nSize) -{ - Alloc(nSize); -} - -// pre-allocates memory (frees the previous data!) -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]; - m_nSize = nSize; - } - - m_nCount = 0; -} - -// minimizes the memory usage by freeing unused memory -void wxArrayString::Shrink() -{ - // only do it if we have some memory to free - if( m_nCount < m_nSize ) { - // allocates exactly as much memory as we need - wxChar **pNew = new wxChar *[m_nCount]; - - // copy data to new location - memcpy(pNew, m_pItems, m_nCount*sizeof(wxChar *)); - delete [] m_pItems; - m_pItems = pNew; - } -} - -#if WXWIN_COMPATIBILITY_2_4 - -// return a wxString[] as required for some control ctors. -wxString* wxArrayString::GetStringArray() const -{ - wxString *array = 0; - - if( m_nCount > 0 ) - { - array = new wxString[m_nCount]; - for( size_t i = 0; i < m_nCount; i++ ) - array[i] = m_pItems[i]; - } - - return array; -} - -void wxArrayString::Remove(size_t nIndex, size_t nRemove) -{ - RemoveAt(nIndex, nRemove); -} - -#endif // WXWIN_COMPATIBILITY_2_4 - -// searches the array for an item (forward or backwards) -int wxArrayString::Index(const wxChar *sz, bool bCase, bool bFromEnd) const -{ - if ( m_autoSort ) { - // use binary search in the sorted array - wxASSERT_MSG( bCase && !bFromEnd, - wxT("search parameters ignored for auto sorted array") ); - - size_t i, - lo = 0, - hi = m_nCount; - int res; - while ( lo < hi ) { - i = (lo + hi)/2; - - res = wxStrcmp(sz, m_pItems[i]); - if ( res < 0 ) - hi = i; - else if ( res > 0 ) - lo = i + 1; - else - return i; - } - - return wxNOT_FOUND; - } - else { - // use linear search in unsorted array - if ( bFromEnd ) { - if ( m_nCount > 0 ) { - size_t ui = m_nCount; - do { - if ( STRING(m_pItems[--ui])->IsSameAs(sz, bCase) ) - return ui; - } - while ( ui != 0 ); - } - } - else { - for( size_t ui = 0; ui < m_nCount; ui++ ) { - if( STRING(m_pItems[ui])->IsSameAs(sz, bCase) ) - return ui; - } - } - } - - return wxNOT_FOUND; -} - -// add item at the end -size_t wxArrayString::Add(const wxString& str, size_t nInsert) -{ - if ( m_autoSort ) { - // insert the string at the correct position to keep the array sorted - size_t i, - lo = 0, - hi = m_nCount; - int res; - while ( lo < hi ) { - i = (lo + hi)/2; - - res = str.Cmp(m_pItems[i]); - if ( res < 0 ) - hi = i; - else if ( res > 0 ) - lo = i + 1; - else { - lo = hi = i; - break; - } - } - - wxASSERT_MSG( lo == hi, wxT("binary search broken") ); - - Insert(str, lo, nInsert); - - return (size_t)lo; - } - else { - wxASSERT( str.GetStringData()->IsValid() ); - - Grow(nInsert); - - for (size_t i = 0; i < nInsert; i++) - { - // the string data must not be deleted! - str.GetStringData()->Lock(); - - // just append - m_pItems[m_nCount + i] = (wxChar *)str.c_str(); // const_cast - } - size_t ret = m_nCount; - m_nCount += nInsert; - return ret; - } -} - -// add item at the given position -void wxArrayString::Insert(const wxString& str, size_t nIndex, size_t nInsert) -{ - wxASSERT( str.GetStringData()->IsValid() ); - - wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArrayString::Insert") ); - wxCHECK_RET( m_nCount <= m_nCount + nInsert, - wxT("array size overflow in wxArrayString::Insert") ); - - Grow(nInsert); - - memmove(&m_pItems[nIndex + nInsert], &m_pItems[nIndex], - (m_nCount - nIndex)*sizeof(wxChar *)); - - for (size_t i = 0; i < nInsert; i++) - { - str.GetStringData()->Lock(); - m_pItems[nIndex + i] = (wxChar *)str.c_str(); - } - m_nCount += nInsert; -} - -// range insert (STL 23.2.4.3) -void -wxArrayString::insert(iterator it, const_iterator first, const_iterator last) -{ - const int idx = it - begin(); - - // grow it once - Grow(last - first); - - // reset "it" since it can change inside Grow() - it = begin() + idx; - - while ( first != last ) - { - it = insert(it, *first); - - // insert returns an iterator to the last element inserted but we need - // insert the next after this one, that is before the next one - ++it; - - ++first; - } -} - -// expand the array -void wxArrayString::SetCount(size_t count) -{ - Alloc(count); - - wxString s; - while ( m_nCount < count ) - m_pItems[m_nCount++] = (wxChar *)s.c_str(); -} - -// removes item from array (by index) -void wxArrayString::RemoveAt(size_t nIndex, size_t nRemove) -{ - wxCHECK_RET( nIndex < m_nCount, wxT("bad index in wxArrayString::Remove") ); - wxCHECK_RET( nIndex + nRemove <= m_nCount, - wxT("removing too many elements in wxArrayString::Remove") ); - - // release our lock - for (size_t i = 0; i < nRemove; i++) - Item(nIndex + i).GetStringData()->Unlock(); - - memmove(&m_pItems[nIndex], &m_pItems[nIndex + nRemove], - (m_nCount - nIndex - nRemove)*sizeof(wxChar *)); - m_nCount -= nRemove; -} - -// removes item from array (by value) -void wxArrayString::Remove(const wxChar *sz) -{ - int iIndex = Index(sz); - - wxCHECK_RET( iIndex != wxNOT_FOUND, - wxT("removing inexistent element in wxArrayString::Remove") ); - - RemoveAt(iIndex); -} - -void wxArrayString::assign(const_iterator first, const_iterator last) -{ - reserve(last - first); - for(; first != last; ++first) - push_back(*first); -} - -// ---------------------------------------------------------------------------- -// sorting -// ---------------------------------------------------------------------------- - -// we can only sort one array at a time with the quick-sort based -// implementation -#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() -#endif // wxUSE_THREADS - -// function to use for string comparaison -static wxArrayString::CompareFunction gs_compareFunction = NULL; - -// if we don't use the compare function, this flag tells us if we sort the -// array in ascending or descending order -static bool gs_sortAscending = true; - -// function which is called by quick sort -extern "C" int wxC_CALLING_CONV // LINKAGEMODE -wxStringCompareFunction(const void *first, const void *second) -{ - wxString *strFirst = (wxString *)first; - wxString *strSecond = (wxString *)second; - - if ( gs_compareFunction ) { - return gs_compareFunction(*strFirst, *strSecond); - } - else { - // maybe we should use wxStrcoll - int result = strFirst->Cmp(*strSecond); - - return gs_sortAscending ? result : -result; - } -} - -// sort array elements using passed comparaison function -void wxArrayString::Sort(CompareFunction compareFunction) -{ - START_SORT(); - - wxASSERT( !gs_compareFunction ); // must have been reset to NULL - gs_compareFunction = compareFunction; - - DoSort(); - - // 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); - -void wxArrayString::Sort(CompareFunction2 compareFunction) -{ - qsort(m_pItems, m_nCount, sizeof(wxChar *), (wxStringCompareFn)compareFunction); -} - -void wxArrayString::Sort(bool reverseOrder) -{ - Sort(reverseOrder ? wxStringSortDescending : wxStringSortAscending); -} - -void wxArrayString::DoSort() -{ - wxCHECK_RET( !m_autoSort, wxT("can't use this method with sorted arrays") ); - - // just sort the pointers using qsort() - of course it only works because - // wxString() *is* a pointer to its data - qsort(m_pItems, m_nCount, sizeof(wxChar *), wxStringCompareFunction); -} - -bool wxArrayString::operator==(const wxArrayString& a) const -{ - if ( m_nCount != a.m_nCount ) - return false; - - for ( size_t n = 0; n < m_nCount; n++ ) - { - if ( Item(n) != a[n] ) - return false; - } - - return true; -} - -#endif // !wxUSE_STL - -int wxCMPFUNC_CONV wxStringSortAscending(wxString* s1, wxString* s2) -{ - return s1->Cmp(*s2); -} - -int wxCMPFUNC_CONV wxStringSortDescending(wxString* s1, wxString* s2) -{ - return -s1->Cmp(*s2); -}