X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d22699b5ebc820af126478d8ef5da4385cef940b..ce7208d49d5ce2ca1dc0b3b83f14f1d04f29c4bf:/src/common/string.cpp diff --git a/src/common/string.cpp b/src/common/string.cpp index 47729557c6..b0bc3a1864 100644 --- a/src/common/string.cpp +++ b/src/common/string.cpp @@ -1,18 +1,15 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: string.cpp +// Name: src/common/string.cpp // Purpose: wxString class -// Author: Vadim Zeitlin +// Author: Vadim Zeitlin, Ryan Norton // Modified by: // Created: 29/01/98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// (c) 2004 Ryan Norton +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ - #pragma implementation "string.h" -#endif - /* * About ref counting: * 1) all empty strings use g_strEmpty, nRefs = -1 (set in Init()) @@ -28,37 +25,22 @@ #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" -#if wxUSE_THREADS - #include -#endif + #include "wx/string.h" + #include "wx/intl.h" + #include "wx/thread.h" #endif #include +#include #include #include #ifdef __SALFORDC__ - #include -#endif - -#if wxUSE_WCSRTOMBS - #include // for wcsrtombs(), see comments where it's used -#endif // GNU - -#ifdef WXSTRING_IS_WXOBJECT - IMPLEMENT_DYNAMIC_CLASS(wxString, wxObject) -#endif //WXSTRING_IS_WXOBJECT - -#if wxUSE_UNICODE -#undef wxUSE_EXPERIMENTAL_PRINTF -#define wxUSE_EXPERIMENTAL_PRINTF 1 + #include #endif // allocating extra space for each string consumes more memory but speeds up @@ -70,14 +52,21 @@ // static class variables definition // --------------------------------------------------------------------------- -#ifdef wxSTD_STRING_COMPATIBILITY - const size_t wxString::npos = wxSTRING_MAXLEN; -#endif // wxSTD_STRING_COMPATIBILITY +#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) @@ -85,98 +74,32 @@ static const struct { wxStringData data; wxChar dummy; -} g_strEmpty = { {-1, 0, 0}, _T('\0') }; +} g_strEmpty = { {-1, 0, 0}, wxT('\0') }; // empty C style string: points to 'string data' byte of g_strEmpty -extern const wxChar WXDLLEXPORT *g_szNul = &g_strEmpty.dummy; - -// ---------------------------------------------------------------------------- -// conditional compilation -// ---------------------------------------------------------------------------- - -#if !defined(__WXSW__) && wxUSE_UNICODE - #ifdef wxUSE_EXPERIMENTAL_PRINTF - #undef wxUSE_EXPERIMENTAL_PRINTF - #endif - #define wxUSE_EXPERIMENTAL_PRINTF 1 -#endif +extern const wxChar WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dummy; -// we want to find out if the current platform supports vsnprintf()-like -// function: for Unix this is done with configure, for Windows we test the -// compiler explicitly. -#ifdef __WXMSW__ - #ifdef __VISUALC__ - #define wxVsnprintf _vsnprintf - #endif -#else // !Windows - #ifdef HAVE_VSNPRINTF - #define wxVsnprintf vsnprintf - #endif -#endif // Windows/!Windows - -#ifndef wxVsnprintf - // in this case we'll use vsprintf() (which is ANSI and thus should be - // always available), but it's unsafe because it doesn't check for buffer - // size - so give a warning - #define wxVsnprintf(buffer,len,format,argptr) vsprintf(buffer,format, argptr) - - #if defined(__VISUALC__) - #pragma message("Using sprintf() because no snprintf()-like function defined") - #elif defined(__GNUG__) && !defined(__UNIX__) - #warning "Using sprintf() because no snprintf()-like function defined" - #elif defined(__MWERKS__) - #warning "Using sprintf() because no snprintf()-like function defined" - #endif //compiler -#endif // no vsnprintf - -#ifdef _AIX - // AIX has vsnprintf, but there's no prototype in the system headers. - extern "C" int vsnprintf(char* str, size_t n, const char* format, va_list ap); #endif // ---------------------------------------------------------------------------- // global functions // ---------------------------------------------------------------------------- -#if defined(wxSTD_STRING_COMPATIBILITY) && wxUSE_STD_IOSTREAM +#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 -istream& operator>>(istream& is, wxString& WXUNUSED(str)) +wxSTD ostream& operator<<(wxSTD ostream& os, const wxString& 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); +#ifdef __BORLANDC__ + os << str.mb_str(); +#else + os << str.c_str(); #endif - return is; + return os; } -#endif //std::string compatibility +#endif // wxUSE_STD_IOSTREAM // ---------------------------------------------------------------------------- // private classes @@ -188,15 +111,15 @@ istream& operator>>(istream& is, wxString& WXUNUSED(str)) class Averager { public: - Averager(const char *sz) { m_sz = sz; m_nTotal = m_nCount = 0; } + Averager(const wxChar *sz) { m_sz = sz; m_nTotal = m_nCount = 0; } ~Averager() - { printf("wxString: average %s = %f\n", m_sz, ((float)m_nTotal)/m_nCount); } + { 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 char *m_sz; + const wxChar *m_sz; } g_averageLength("allocation size"), g_averageSummandLength("summand length"), g_averageConcatHit("hit probability in concat"), @@ -207,114 +130,83 @@ istream& operator>>(istream& is, wxString& WXUNUSED(str)) #define STATISTICS_ADD(av, val) #endif // WXSTRING_STATISTICS +#if !wxUSE_STL + // =========================================================================== -// wxString class core +// wxStringData class deallocation // =========================================================================== -// --------------------------------------------------------------------------- -// construction -// --------------------------------------------------------------------------- - -// constructs string of copies of character -wxString::wxString(wxChar ch, size_t nLength) +#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() { - Init(); - - if ( nLength > 0 ) { - AllocBuffer(nLength); - -#if wxUSE_UNICODE - // memset only works on char - for (size_t n=0; n 0 ) { // trailing '\0' is written in AllocBuffer() - AllocBuffer(nLength); - memcpy(m_pchData, psz + nPos, nLength*sizeof(wxChar)); + if ( !AllocBuffer(nLength) ) { + wxFAIL_MSG( _T("out of memory in wxStringBase::InitWith") ); + return; + } + wxTmemcpy(m_pchData, psz + nPos, nLength); } } -#ifdef wxSTD_STRING_COMPATIBILITY - // poor man's iterators are "void *" pointers -wxString::wxString(const void *pStart, const void *pEnd) -{ - InitWith((const wxChar *)pStart, 0, - (const wxChar *)pEnd - (const wxChar *)pStart); -} - -#endif //std::string compatibility - -#if wxUSE_UNICODE - -// from multibyte string -wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength) +wxStringBase::wxStringBase(const void *pStart, const void *pEnd) { - // first get necessary size - size_t nLen = psz ? conv.MB2WC((wchar_t *) NULL, psz, 0) : 0; - - // nLength is number of *Unicode* characters here! - if ((nLen != (size_t)-1) && (nLen > nLength)) - nLen = nLength; - - // empty? - if ( (nLen != 0) && (nLen != (size_t)-1) ) { - AllocBuffer(nLen); - conv.MB2WC(m_pchData, psz, nLen); + if ( pEnd >= pStart ) + { + InitWith((const wxChar *)pStart, 0, + (const wxChar *)pEnd - (const wxChar *)pStart); } - else { + else + { + wxFAIL_MSG( _T("pStart is not before pEnd") ); Init(); } } -#else - -#if wxUSE_WCHAR_T -// from wide string -wxString::wxString(const wchar_t *pwz) +wxStringBase::wxStringBase(size_type n, wxChar ch) { - // first get necessary size - size_t nLen = pwz ? wxWC2MB((char *) NULL, pwz, 0) : 0; - - // empty? - if ( (nLen != 0) && (nLen != (size_t)-1) ) { - AllocBuffer(nLen); - wxWC2MB(m_pchData, pwz, nLen); - } - else { - Init(); - } + Init(); + append(n, ch); } -#endif - -#endif // --------------------------------------------------------------------------- // memory allocation // --------------------------------------------------------------------------- // allocates memory needed to store a C string of length nLen -void wxString::AllocBuffer(size_t nLen) +bool wxStringBase::AllocBuffer(size_t nLen) { - wxASSERT( nLen > 0 ); // - wxASSERT( nLen <= INT_MAX-1 ); // max size (enough room for 1 extra) + // 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); @@ -323,1331 +215,1869 @@ void wxString::AllocBuffer(size_t nLen) // 2) sizeof(wxStringData) for housekeeping info wxStringData* pData = (wxStringData*) malloc(sizeof(wxStringData) + (nLen + EXTRA_ALLOC + 1)*sizeof(wxChar)); + + 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] = _T('\0'); + m_pchData[nLen] = wxT('\0'); + return true; } // must be called before changing this string -void wxString::CopyBeforeWrite() +bool wxStringBase::CopyBeforeWrite() { wxStringData* pData = GetStringData(); if ( pData->IsShared() ) { pData->Unlock(); // memory not freed because shared size_t nLen = pData->nDataLength; - AllocBuffer(nLen); - memcpy(m_pchData, pData->data(), nLen*sizeof(wxChar)); + if ( !AllocBuffer(nLen) ) { + // allocation failures are handled by the caller + return false; + } + wxTmemcpy(m_pchData, pData->data(), nLen); } wxASSERT( !GetStringData()->IsShared() ); // we must be the only owner + + return true; } // must be called before replacing contents of this string -void wxString::AllocBeforeWrite(size_t nLen) +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() || (nLen > pData->nAllocLength) ) { + if ( pData->IsShared() || pData->IsEmpty() ) { // can't work with old buffer, get new one pData->Unlock(); - AllocBuffer(nLen); + if ( !AllocBuffer(nLen) ) { + // allocation failures are handled by the caller + return false; + } } else { - // update the string length - pData->nDataLength = nLen; + if ( nLen > pData->nAllocLength ) { + // realloc the buffer instead of calling malloc() again, this is more + // efficient + STATISTICS_ADD(Length, nLen); + + nLen += EXTRA_ALLOC; + + pData = (wxStringData*) + realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); + + if ( pData == NULL ) { + // allocation failures are handled by the caller + // keep previous data since reallocation failed + return false; + } + + pData->nAllocLength = nLen; + m_pchData = pData->data(); + } } wxASSERT( !GetStringData()->IsShared() ); // we must be the only owner + + // it doesn't really matter what the string length is as it's going to be + // overwritten later but, for extra safety, set it to 0 for now as we may + // have some junk in m_pchData + GetStringData()->nDataLength = 0; + + return true; +} + +wxStringBase& wxStringBase::append(size_t n, wxChar ch) +{ + 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; +} + +void wxStringBase::resize(size_t nSize, wxChar ch) +{ + 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 } // allocate enough memory for nLen characters -void wxString::Alloc(size_t nLen) +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)); + pData = (wxStringData *) + malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); + + if ( pData == NULL ) { + // allocation failure handled by caller + return false; + } + pData->nRefs = 1; pData->nDataLength = 0; pData->nAllocLength = nLen; m_pchData = pData->data(); // data starts after wxStringData - m_pchData[0u] = _T('\0'); + m_pchData[0u] = wxT('\0'); } else if ( pData->IsShared() ) { pData->Unlock(); // memory not freed because shared size_t nOldLen = pData->nDataLength; - AllocBuffer(nLen); - memcpy(m_pchData, pData->data(), nOldLen*sizeof(wxChar)); + if ( !AllocBuffer(nLen) ) { + // allocation failure handled by caller + return false; + } + // +1 to copy the terminator, too + memcpy(m_pchData, pData->data(), (nOldLen+1)*sizeof(wxChar)); + GetStringData()->nDataLength = nOldLen; } else { nLen += EXTRA_ALLOC; - wxStringData *p = (wxStringData *) + pData = (wxStringData *) realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar)); - if ( p == NULL ) { - // @@@ what to do on memory error? - return; + if ( pData == NULL ) { + // allocation failure handled by caller + // keep previous data since reallocation failed + return false; } // 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) - p->nAllocLength = nLen; - m_pchData = p->data(); + pData->nAllocLength = nLen; + m_pchData = pData->data(); } } //else: we've already got enough + return true; } -// shrink to minimal size (releasing extra memory) -void wxString::Shrink() +wxStringBase::iterator wxStringBase::begin() { - wxStringData *pData = GetStringData(); - - // this variable is unused in release build, so avoid the compiler warning by - // just not declaring it -#ifdef __WXDEBUG__ - void *p = -#endif - realloc(pData, sizeof(wxStringData) + (pData->nDataLength + 1)*sizeof(wxChar)); - - wxASSERT( p != NULL ); // can't free memory? - wxASSERT( p == pData ); // we're decrementing the size - block shouldn't move! + if (length() > 0) + CopyBeforeWrite(); + return m_pchData; } -// get the pointer to writable buffer of (at least) nLen bytes -wxChar *wxString::GetWriteBuf(size_t nLen) +wxStringBase::iterator wxStringBase::end() { - AllocBeforeWrite(nLen); - - wxASSERT( GetStringData()->nRefs == 1 ); - GetStringData()->Validate(FALSE); - - return m_pchData; + if (length() > 0) + CopyBeforeWrite(); + return m_pchData + length(); } -// put string back in a reasonable state after GetWriteBuf -void wxString::UngetWriteBuf() +wxStringBase::iterator wxStringBase::erase(iterator it) { - GetStringData()->nDataLength = wxStrlen(m_pchData); - GetStringData()->Validate(TRUE); + size_type idx = it - begin(); + erase(idx, 1); + return begin() + idx; } -// --------------------------------------------------------------------------- -// data access -// --------------------------------------------------------------------------- - -// all functions are inline in string.h - -// --------------------------------------------------------------------------- -// assignment operators -// --------------------------------------------------------------------------- - -// helper function: does real copy -void wxString::AssignCopy(size_t nSrcLen, const wxChar *pszSrcData) +wxStringBase& wxStringBase::erase(size_t nStart, size_t nLen) { - if ( nSrcLen == 0 ) { - Reinit(); - } - else { - AllocBeforeWrite(nSrcLen); - memcpy(m_pchData, pszSrcData, nSrcLen*sizeof(wxChar)); - GetStringData()->nDataLength = nSrcLen; - m_pchData[nSrcLen] = _T('\0'); - } + 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; } -// assigns one string to another -wxString& wxString::operator=(const wxString& stringSrc) +wxStringBase& wxStringBase::insert(size_t nPos, const wxChar *sz, size_t n) { - wxASSERT( stringSrc.GetStringData()->IsValid() ); + wxASSERT( nPos <= length() ); - // 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(); + 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") ); } - } - return *this; -} + 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'; -// assigns a single character -wxString& wxString::operator=(wxChar ch) -{ - AssignCopy(1, &ch); - return *this; + return *this; } -// assigns C string -wxString& wxString::operator=(const wxChar *psz) +void wxStringBase::swap(wxStringBase& str) { - AssignCopy(wxStrlen(psz), psz); - return *this; + wxChar* tmp = str.m_pchData; + str.m_pchData = m_pchData; + m_pchData = tmp; } -#if !wxUSE_UNICODE - -// same as 'signed char' variant -wxString& wxString::operator=(const unsigned char* psz) +size_t wxStringBase::find(const wxStringBase& str, size_t nStart) const { - *this = (const char *)psz; - return *this; -} + // deal with the special case of empty string first + const size_t nLen = length(); + const size_t nLenOther = str.length(); -#if wxUSE_WCHAR_T -wxString& wxString::operator=(const wchar_t *pwz) -{ - wxString str(pwz); - *this = str; - return *this; -} -#endif + if ( !nLenOther ) + { + // empty string is a substring of anything + return 0; + } -#endif + if ( !nLen ) + { + // the other string is non empty so can't be our substring + return npos; + } -// --------------------------------------------------------------------------- -// string concatenation -// --------------------------------------------------------------------------- + wxASSERT( str.GetStringData()->IsValid() ); + wxASSERT( nStart <= nLen ); -// add something to this string -void wxString::ConcatSelf(int nSrcLen, const wxChar *pszSrcData) -{ - STATISTICS_ADD(SummandLength, nSrcLen); + const wxChar * const other = str.c_str(); - // concatenating an empty string is a NOP - if ( nSrcLen > 0 ) { - wxStringData *pData = GetStringData(); - size_t nLen = pData->nDataLength; - size_t nNewLen = nLen + nSrcLen; + // anchor + const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart, + *other, + nLen - nStart); - // alloc new buffer if current is too small - if ( pData->IsShared() ) { - STATISTICS_ADD(ConcatHit, 0); + if ( !p ) + return npos; - // we have to allocate another buffer - wxStringData* pOldData = GetStringData(); - AllocBuffer(nNewLen); - memcpy(m_pchData, pOldData->data(), nLen*sizeof(wxChar)); - pOldData->Unlock(); - } - else if ( nNewLen > pData->nAllocLength ) { - STATISTICS_ADD(ConcatHit, 0); + while ( p - c_str() + nLenOther <= nLen && wxTmemcmp(p, other, nLenOther) ) + { + p++; - // we have to grow the buffer - Alloc(nNewLen); - } - else { - STATISTICS_ADD(ConcatHit, 1); + // anchor again + p = (const wxChar*)wxTmemchr(p, *other, nLen - (p - c_str())); - // the buffer is already big enough + if ( !p ) + return npos; } - // should be enough space - wxASSERT( nNewLen <= GetStringData()->nAllocLength ); - - // fast concatenation - all is done in our buffer - memcpy(m_pchData + nLen, pszSrcData, nSrcLen*sizeof(wxChar)); - - m_pchData[nNewLen] = _T('\0'); // put terminating '\0' - GetStringData()->nDataLength = nNewLen; // and fix the length - } - //else: the string to append was empty + return p - c_str() + nLenOther <= nLen ? p - c_str() : npos; } -/* - * concatenation functions come in 5 flavours: - * string + string - * char + string and string + char - * C str + string and string + C str - */ +size_t wxStringBase::find(const wxChar* sz, size_t nStart, size_t n) const +{ + return find(wxStringBase(sz, n), nStart); +} -wxString operator+(const wxString& string1, const wxString& string2) +size_t wxStringBase::find(wxChar ch, size_t nStart) const { - wxASSERT( string1.GetStringData()->IsValid() ); - wxASSERT( string2.GetStringData()->IsValid() ); + wxASSERT( nStart <= length() ); - wxString s = string1; - s += string2; + const wxChar *p = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart); - return s; + return p == NULL ? npos : p - c_str(); } -wxString operator+(const wxString& string, wxChar ch) +size_t wxStringBase::rfind(const wxStringBase& str, size_t nStart) const { - wxASSERT( string.GetStringData()->IsValid() ); + wxASSERT( str.GetStringData()->IsValid() ); + wxASSERT( nStart == npos || nStart <= length() ); - wxString s = string; - s += ch; + if ( length() >= str.length() ) + { + // avoids a corner case later + if ( length() == 0 && str.length() == 0 ) + return 0; - return s; -} + // "top" is the point where search starts from + size_t top = length() - str.length(); -wxString operator+(wxChar ch, const wxString& string) -{ - wxASSERT( string.GetStringData()->IsValid() ); + if ( nStart == npos ) + nStart = length() - 1; + if ( nStart < top ) + top = nStart; - wxString s = ch; - s += string; + const wxChar *cursor = c_str() + top; + do + { + if ( wxTmemcmp(cursor, str.c_str(), + str.length()) == 0 ) + { + return cursor - c_str(); + } + } while ( cursor-- > c_str() ); + } - return s; + return npos; } -wxString operator+(const wxString& string, const wxChar *psz) +size_t wxStringBase::rfind(const wxChar* sz, size_t nStart, size_t n) const { - wxASSERT( string.GetStringData()->IsValid() ); - - wxString s; - s.Alloc(wxStrlen(psz) + string.Len()); - s = string; - s += psz; - - return s; + return rfind(wxStringBase(sz, n), nStart); } -wxString operator+(const wxChar *psz, const wxString& string) +size_t wxStringBase::rfind(wxChar ch, size_t nStart) const { - wxASSERT( string.GetStringData()->IsValid() ); + if ( nStart == npos ) + { + nStart = length(); + } + else + { + wxASSERT( nStart <= length() ); + } - wxString s; - s.Alloc(wxStrlen(psz) + string.Len()); - s = psz; - s += string; + 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 s; + return npos; } -// =========================================================================== -// other common string functions -// =========================================================================== +size_t wxStringBase::find_first_of(const wxChar* sz, size_t nStart) const +{ + wxASSERT(nStart <= length()); -// --------------------------------------------------------------------------- -// simple sub-string extraction -// --------------------------------------------------------------------------- + size_t len = wxStrlen(sz); -// helper function: clone the data attached to this string -void wxString::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) const -{ - if ( nCopyLen == 0 ) { - dest.Init(); - } - else { - dest.AllocBuffer(nCopyLen); - memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(wxChar)); - } + 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; } -// extract string of length nCount starting at nFirst -wxString wxString::Mid(size_t nFirst, size_t nCount) const +size_t wxStringBase::find_first_of(const wxChar* sz, size_t nStart, + size_t n) const { - wxStringData *pData = GetStringData(); - size_t nLen = pData->nDataLength; - - // default value of nCount is wxSTRING_MAXLEN and means "till the end" - if ( nCount == wxSTRING_MAXLEN ) - { - 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; - } - - wxString dest; - AllocCopy(dest, nCount, nFirst); - - return dest; + return find_first_of(wxStringBase(sz, n), nStart); } -// extract nCount last (rightmost) characters -wxString wxString::Right(size_t nCount) const +size_t wxStringBase::find_last_of(const wxChar* sz, size_t nStart) const { - if ( nCount > (size_t)GetStringData()->nDataLength ) - nCount = GetStringData()->nDataLength; + if ( nStart == npos ) + { + nStart = length() - 1; + } + else + { + wxASSERT_MSG( nStart <= length(), + _T("invalid index in find_last_of()") ); + } - wxString dest; - AllocCopy(dest, nCount, GetStringData()->nDataLength - nCount); - return dest; -} + size_t len = wxStrlen(sz); -// get all characters after the last occurence of ch -// (returns the whole string if ch not found) -wxString wxString::AfterLast(wxChar ch) const -{ - wxString str; - int iPos = Find(ch, TRUE); - if ( iPos == wxNOT_FOUND ) - str = *this; - else - str = c_str() + iPos + 1; + for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p ) + { + if ( wxTmemchr(sz, *p, len) ) + return p - c_str(); + } - return str; + return npos; } -// extract nCount first (leftmost) characters -wxString wxString::Left(size_t nCount) const +size_t wxStringBase::find_last_of(const wxChar* sz, size_t nStart, + size_t n) const { - if ( nCount > (size_t)GetStringData()->nDataLength ) - nCount = GetStringData()->nDataLength; - - wxString dest; - AllocCopy(dest, nCount, 0); - return dest; + return find_last_of(wxStringBase(sz, n), nStart); } -// get all characters before the first occurence of ch -// (returns the whole string if ch not found) -wxString wxString::BeforeFirst(wxChar ch) const +size_t wxStringBase::find_first_not_of(const wxChar* sz, size_t nStart) const { - wxString str; - for ( const wxChar *pc = m_pchData; *pc != _T('\0') && *pc != ch; pc++ ) - str += *pc; + if ( nStart == npos ) + { + nStart = length(); + } + else + { + wxASSERT( nStart <= length() ); + } - return str; -} + size_t len = wxStrlen(sz); -/// get all characters before the last occurence of ch -/// (returns empty string if ch not found) -wxString wxString::BeforeLast(wxChar ch) const -{ - wxString str; - int iPos = Find(ch, TRUE); - if ( iPos != wxNOT_FOUND && iPos != 0 ) - str = wxString(c_str(), iPos); + size_t i; + for(i = nStart; i < this->length(); ++i) + { + if (!wxTmemchr(sz, *(c_str() + i), len)) + break; + } - return str; + if(i == this->length()) + return npos; + else + return i; } -/// get all characters after the first occurence of ch -/// (returns empty string if ch not found) -wxString wxString::AfterFirst(wxChar ch) const +size_t wxStringBase::find_first_not_of(const wxChar* sz, size_t nStart, + size_t n) const { - wxString str; - int iPos = Find(ch); - if ( iPos != wxNOT_FOUND ) - str = c_str() + iPos + 1; - - return str; + return find_first_not_of(wxStringBase(sz, n), nStart); } -// 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 wxStringBase::find_first_not_of(wxChar ch, size_t nStart) const { - size_t uiCount = 0; // count of replacements made + wxASSERT( nStart <= length() ); - size_t uiOldLen = wxStrlen(szOld); + for ( const wxChar *p = c_str() + nStart; *p; p++ ) + { + if ( *p != ch ) + return p - c_str(); + } - wxString strTemp; - const wxChar *pCurrent = m_pchData; - const wxChar *pSubstr; - while ( *pCurrent != _T('\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; + return npos; +} - strTemp += pCurrent; // copy the rest - break; // exit the loop +size_t wxStringBase::find_last_not_of(const wxChar* sz, size_t nStart) const +{ + if ( nStart == npos ) + { + nStart = length() - 1; + } + else + { + wxASSERT( nStart <= length() ); } - else { - // take chars before match - strTemp.ConcatSelf(pSubstr - pCurrent, pCurrent); - strTemp += szNew; - pCurrent = pSubstr + uiOldLen; // restart after match - uiCount++; + size_t len = wxStrlen(sz); - // stop now? - if ( !bReplaceAll ) { - strTemp += pCurrent; // copy the rest - break; // exit the loop - } + for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p ) + { + if ( !wxTmemchr(sz, *p,len) ) + return p - c_str(); } - } - // only done if there were replacements, otherwise would have returned above - *this = strTemp; - - return uiCount; + return npos; } -bool wxString::IsAscii() const +size_t wxStringBase::find_last_not_of(const wxChar* sz, size_t nStart, + size_t n) const { - const wxChar *s = (const wxChar*) *this; - while(*s){ - if(!isascii(*s)) return(FALSE); - s++; - } - return(TRUE); + return find_last_not_of(wxStringBase(sz, n), nStart); } -bool wxString::IsWord() const +size_t wxStringBase::find_last_not_of(wxChar ch, size_t nStart) const { - const wxChar *s = (const wxChar*) *this; - while(*s){ - if(!wxIsalpha(*s)) return(FALSE); - s++; - } - return(TRUE); -} + if ( nStart == npos ) + { + nStart = length() - 1; + } + else + { + wxASSERT( nStart <= length() ); + } -bool wxString::IsNumber() const -{ - const wxChar *s = (const wxChar*) *this; - while(*s){ - if(!wxIsdigit(*s)) return(FALSE); - s++; - } - return(TRUE); + for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p ) + { + if ( *p != ch ) + return p - c_str(); + } + + return npos; } -wxString wxString::Strip(stripType w) const +wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, + const wxChar *sz) { - wxString s = *this; - if ( w & leading ) s.Trim(FALSE); - if ( w & trailing ) s.Trim(TRUE); - return s; -} + wxASSERT_MSG( nStart <= length(), + _T("index out of bounds in wxStringBase::replace") ); + size_t strLen = length() - nStart; + nLen = strLen < nLen ? strLen : nLen; -// --------------------------------------------------------------------------- -// case conversion -// --------------------------------------------------------------------------- + wxStringBase strTmp; + strTmp.reserve(length()); // micro optimisation to avoid multiple mem allocs -wxString& wxString::MakeUpper() -{ - CopyBeforeWrite(); + //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]); - for ( wxChar *p = m_pchData; *p; p++ ) - *p = (wxChar)wxToupper(*p); + //its safe to do the full version here because + //sz must be a normal c string + strTmp.append(sz); + for(size_t i2 = nStart + nLen; i2 < length(); ++i2) + strTmp.append(1, this->c_str()[i2]); + + swap(strTmp); return *this; } -wxString& wxString::MakeLower() +wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, + size_t nCount, wxChar ch) { - CopyBeforeWrite(); - - for ( wxChar *p = m_pchData; *p; p++ ) - *p = (wxChar)wxTolower(*p); + return replace(nStart, nLen, wxStringBase(nCount, ch).c_str()); +} - return *this; +wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, + const wxStringBase& str, + size_t nStart2, size_t nLen2) +{ + return replace(nStart, nLen, str.substr(nStart2, nLen2)); } -// --------------------------------------------------------------------------- -// trimming and padding -// --------------------------------------------------------------------------- +wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen, + const wxChar* sz, size_t nCount) +{ + return replace(nStart, nLen, wxStringBase(sz, nCount).c_str()); +} -// trims spaces (in the sense of isspace) from left or right side -wxString& wxString::Trim(bool bFromRight) +wxStringBase wxStringBase::substr(size_t nStart, size_t nLen) const { - // first check if we're going to modify the string at all - if ( !IsEmpty() && - ( - (bFromRight && wxIsspace(GetChar(Len() - 1))) || - (!bFromRight && wxIsspace(GetChar(0u))) - ) - ) - { - // ok, there is at least one space to trim - CopyBeforeWrite(); + if ( nLen == npos ) + nLen = length() - nStart; + return wxStringBase(*this, nStart, nLen); +} - if ( bFromRight ) - { - // find last non-space character - wxChar *psz = m_pchData + GetStringData()->nDataLength - 1; - while ( wxIsspace(*psz) && (psz >= m_pchData) ) - psz--; +// assigns one string to another +wxStringBase& wxStringBase::operator=(const wxStringBase& stringSrc) +{ + wxASSERT( stringSrc.GetStringData()->IsValid() ); - // truncate at trailing space start - *++psz = _T('\0'); - GetStringData()->nDataLength = psz - m_pchData; + // don't copy string over itself + if ( m_pchData != stringSrc.m_pchData ) { + if ( stringSrc.GetStringData()->IsEmpty() ) { + Reinit(); } - else - { - // find first non-space character - const wxChar *psz = m_pchData; - while ( wxIsspace(*psz) ) - psz++; - - // fix up data and length - int nDataLength = GetStringData()->nDataLength - (psz - (const wxChar*) m_pchData); - memmove(m_pchData, psz, (nDataLength + 1)*sizeof(wxChar)); - GetStringData()->nDataLength = nDataLength; + else { + // adjust references + GetStringData()->Unlock(); + m_pchData = stringSrc.m_pchData; + GetStringData()->Lock(); } } return *this; } -// adds nCount characters chPad to the string from either side -wxString& wxString::Pad(size_t nCount, wxChar chPad, bool bFromRight) +// assigns a single character +wxStringBase& wxStringBase::operator=(wxChar ch) { - wxString s(chPad, nCount); - - if ( bFromRight ) - *this += s; - else - { - s += *this; - *this = s; + if ( !AssignCopy(1, &ch) ) { + wxFAIL_MSG( _T("out of memory in wxStringBase::operator=(wxChar)") ); } - return *this; } -// truncate the string -wxString& wxString::Truncate(size_t uiLen) +// assigns C string +wxStringBase& wxStringBase::operator=(const wxChar *psz) { - if ( uiLen < Len() ) { - CopyBeforeWrite(); - - *(m_pchData + uiLen) = _T('\0'); - GetStringData()->nDataLength = uiLen; + if ( !AssignCopy(wxStrlen(psz), psz) ) { + wxFAIL_MSG( _T("out of memory in wxStringBase::operator=(const wxChar *)") ); } - //else: nothing to do, string is already short enough - return *this; } -// --------------------------------------------------------------------------- -// finding (return wxNOT_FOUND if not found and index otherwise) -// --------------------------------------------------------------------------- - -// find a character -int wxString::Find(wxChar ch, bool bFromEnd) const -{ - const wxChar *psz = bFromEnd ? wxStrrchr(m_pchData, ch) : wxStrchr(m_pchData, ch); - - return (psz == NULL) ? wxNOT_FOUND : psz - (const wxChar*) m_pchData; -} - -// find a sub-string (like strstr) -int wxString::Find(const wxChar *pszSub) const +// helper function: does real copy +bool wxStringBase::AssignCopy(size_t nSrcLen, const wxChar *pszSrcData) { - const wxChar *psz = wxStrstr(m_pchData, pszSub); - - return (psz == NULL) ? wxNOT_FOUND : psz - (const wxChar*) m_pchData; + 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; } // --------------------------------------------------------------------------- -// stream-like operators +// string concatenation // --------------------------------------------------------------------------- -wxString& wxString::operator<<(int i) -{ - wxString res; - res.Printf(_T("%d"), i); - return (*this) << res; -} - -wxString& wxString::operator<<(float f) +// add something to this string +bool wxStringBase::ConcatSelf(size_t nSrcLen, const wxChar *pszSrcData, + size_t nMaxLen) { - wxString res; - res.Printf(_T("%f"), f); - - return (*this) << res; -} + STATISTICS_ADD(SummandLength, nSrcLen); -wxString& wxString::operator<<(double d) -{ - wxString res; - res.Printf(_T("%g"), d); + nSrcLen = nSrcLen < nMaxLen ? nSrcLen : nMaxLen; - return (*this) << res; -} + // concatenating an empty string is a NOP + if ( nSrcLen > 0 ) { + wxStringData *pData = GetStringData(); + size_t nLen = pData->nDataLength; + size_t nNewLen = nLen + nSrcLen; -// --------------------------------------------------------------------------- -// formatted output -// --------------------------------------------------------------------------- -int wxString::Printf(const wxChar *pszFormat, ...) -{ - va_list argptr; - va_start(argptr, pszFormat); + // alloc new buffer if current is too small + if ( pData->IsShared() ) { + STATISTICS_ADD(ConcatHit, 0); - int iLen = PrintfV(pszFormat, argptr); + // 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); - va_end(argptr); + reserve(nNewLen); + // we have to grow the buffer + if ( capacity() < nNewLen ) { + // allocation failure handled by caller + return false; + } + } + else { + STATISTICS_ADD(ConcatHit, 1); - return iLen; -} + // the buffer is already big enough + } -int wxString::PrintfV(const wxChar* pszFormat, va_list argptr) -{ - // static buffer to avoid dynamic memory allocation each time - char s_szScratch[1024]; // using static buffer causes internal compiler err -#if 0 -#if wxUSE_THREADS - // protect the static buffer - static wxCriticalSection critsect; - wxCriticalSectionLocker lock(critsect); -#endif -#endif + // should be enough space + wxASSERT( nNewLen <= GetStringData()->nAllocLength ); -#if wxUSE_EXPERIMENTAL_PRINTF -// the new implementation - - Reinit(); - for (size_t n = 0; pszFormat[n]; n++) - if (pszFormat[n] == _T('%')) { - static char s_szFlags[256] = "%"; - size_t flagofs = 1; - bool adj_left = FALSE, in_prec = FALSE, - prec_dot = FALSE, done = FALSE; - int ilen = 0; - size_t min_width = 0, max_width = wxSTRING_MAXLEN; - do { -#define CHECK_PREC if (in_prec && !prec_dot) { s_szFlags[flagofs++] = '.'; prec_dot = TRUE; } - switch (pszFormat[++n]) { - case _T('\0'): - done = TRUE; - break; - case _T('%'): - *this += _T('%'); - done = TRUE; - break; - case _T('#'): - case _T('0'): - case _T(' '): - case _T('+'): - case _T('\''): - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - break; - case _T('-'): - CHECK_PREC - adj_left = TRUE; - s_szFlags[flagofs++] = pszFormat[n]; - break; - case _T('.'): - CHECK_PREC - in_prec = TRUE; - prec_dot = FALSE; - max_width = 0; - // dot will be auto-added to s_szFlags if non-negative number follows - break; - case _T('h'): - ilen = -1; - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - break; - case _T('l'): - ilen = 1; - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - break; - case _T('q'): - case _T('L'): - ilen = 2; - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - break; - case _T('Z'): - ilen = 3; - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - break; - case _T('*'): - { - int len = va_arg(argptr, int); - if (in_prec) { - if (len<0) break; - CHECK_PREC - max_width = len; - } else { - if (len<0) { - adj_left = !adj_left; - s_szFlags[flagofs++] = '-'; - len = -len; - } - min_width = len; - } - flagofs += ::sprintf(s_szFlags+flagofs,"%d",len); - } - break; - case _T('1'): case _T('2'): case _T('3'): - case _T('4'): case _T('5'): case _T('6'): - case _T('7'): case _T('8'): case _T('9'): - { - int len = 0; - CHECK_PREC - while ((pszFormat[n]>=_T('0')) && (pszFormat[n]<=_T('9'))) { - s_szFlags[flagofs++] = pszFormat[n]; - len = len*10 + (pszFormat[n] - _T('0')); - n++; - } - if (in_prec) max_width = len; - else min_width = len; - n--; // the main loop pre-increments n again - } - break; - case _T('d'): - case _T('i'): - case _T('o'): - case _T('u'): - case _T('x'): - case _T('X'): - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - s_szFlags[flagofs] = '\0'; - if (ilen == 0 ) { - int val = va_arg(argptr, int); - ::sprintf(s_szScratch, s_szFlags, val); - } - else if (ilen == -1) { - short int val = va_arg(argptr, short int); - ::sprintf(s_szScratch, s_szFlags, val); - } - else if (ilen == 1) { - long int val = va_arg(argptr, long int); - ::sprintf(s_szScratch, s_szFlags, val); - } - else if (ilen == 2) { -#if SIZEOF_LONG_LONG - long long int val = va_arg(argptr, long long int); - ::sprintf(s_szScratch, s_szFlags, val); -#else - long int val = va_arg(argptr, long int); - ::sprintf(s_szScratch, s_szFlags, val); -#endif - } - else if (ilen == 3) { - size_t val = va_arg(argptr, size_t); - ::sprintf(s_szScratch, s_szFlags, val); - } - *this += wxString(s_szScratch); - done = TRUE; - break; - case _T('e'): - case _T('E'): - case _T('f'): - case _T('g'): - case _T('G'): - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - s_szFlags[flagofs] = '\0'; - if (ilen == 2) { - long double val = va_arg(argptr, long double); - ::sprintf(s_szScratch, s_szFlags, val); - } else { - double val = va_arg(argptr, double); - ::sprintf(s_szScratch, s_szFlags, val); - } - *this += wxString(s_szScratch); - done = TRUE; - break; - case _T('p'): - { - void *val = va_arg(argptr, void *); - CHECK_PREC - s_szFlags[flagofs++] = pszFormat[n]; - s_szFlags[flagofs] = '\0'; - ::sprintf(s_szScratch, s_szFlags, val); - *this += wxString(s_szScratch); - done = TRUE; - } - break; - case _T('c'): - { - wxChar val = va_arg(argptr, int); - // we don't need to honor padding here, do we? - *this += val; - done = TRUE; - } - break; - case _T('s'): - if (ilen == -1) { - // wx extension: we'll let %hs mean non-Unicode strings - char *val = va_arg(argptr, char *); -#if wxUSE_UNICODE - // ASCII->Unicode constructor handles max_width right - wxString s(val, wxConvLibc, max_width); -#else - size_t len = wxSTRING_MAXLEN; - if (val) { - for (len = 0; val[len] && (len= 1) { - long int *val = va_arg(argptr, long int *); - *val = Len(); - } - done = TRUE; - break; - default: - if (wxIsalpha(pszFormat[n])) - // probably some flag not taken care of here yet - s_szFlags[flagofs++] = pszFormat[n]; - else { - // bad format - *this += _T('%'); // just to pass the glibc tst-printf.c - n--; - done = TRUE; - } - break; - } -#undef CHECK_PREC - } while (!done); - } else *this += pszFormat[n]; + // fast concatenation - all is done in our buffer + memcpy(m_pchData + nLen, pszSrcData, nSrcLen*sizeof(wxChar)); -#else - // NB: wxVsnprintf() may return either less than the buffer size or -1 if there - // is not enough place depending on implementation - int iLen = wxVsnprintf(s_szScratch, WXSIZEOF(s_szScratch), pszFormat, argptr); - char *buffer; - if ( iLen < (int)WXSIZEOF(s_szScratch) ) { - buffer = s_szScratch; + m_pchData[nNewLen] = wxT('\0'); // put terminating '\0' + GetStringData()->nDataLength = nNewLen; // and fix the length } - else { - int size = WXSIZEOF(s_szScratch) * 2; - buffer = (char *)malloc(size); - while ( buffer != NULL ) { - iLen = wxVsnprintf(buffer, WXSIZEOF(s_szScratch), pszFormat, argptr); - if ( iLen < size ) { - // ok, there was enough space - break; - } + //else: the string to append was empty + return true; +} - // still not enough, double it again - buffer = (char *)realloc(buffer, size *= 2); - } +// --------------------------------------------------------------------------- +// simple sub-string extraction +// --------------------------------------------------------------------------- - if ( !buffer ) { - // out of memory - return -1; - } +// helper function: clone the data attached to this string +bool wxStringBase::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) 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; +} - wxString s(buffer); - *this = s; +#endif // !wxUSE_STL - if ( buffer != s_szScratch ) - free(buffer); +#if !wxUSE_STL || !defined(HAVE_STD_STRING_COMPARE) + +#if !wxUSE_STL + #define STRINGCLASS wxStringBase +#else + #define STRINGCLASS wxString #endif - return Len(); +static inline int wxDoCmp(const wxChar* s1, size_t l1, + const wxChar* s2, size_t l2) +{ + if( l1 == l2 ) + return wxTmemcmp(s1, s2, l1); + else if( l1 < l2 ) + { + int ret = wxTmemcmp(s1, s2, l1); + return ret == 0 ? -1 : ret; + } + else + { + int ret = wxTmemcmp(s1, s2, l2); + return ret == 0 ? +1 : ret; + } +} + +int STRINGCLASS::compare(const wxStringBase& str) const +{ + return ::wxDoCmp(data(), length(), str.data(), str.length()); } -// ---------------------------------------------------------------------------- -// misc other operations -// ---------------------------------------------------------------------------- -bool wxString::Matches(const wxChar *pszMask) const +int STRINGCLASS::compare(size_t nStart, size_t nLen, + const wxStringBase& str) const { - // check char by char - const wxChar *pszTxt; - for ( pszTxt = c_str(); *pszMask != _T('\0'); pszMask++, pszTxt++ ) { - switch ( *pszMask ) { - case _T('?'): - if ( *pszTxt == _T('\0') ) - return FALSE; + wxASSERT(nStart <= length()); + size_type strLen = length() - nStart; + nLen = strLen < nLen ? strLen : nLen; + return ::wxDoCmp(data() + nStart, nLen, str.data(), str.length()); +} - pszTxt++; - pszMask++; - break; +int STRINGCLASS::compare(size_t nStart, size_t nLen, + const wxStringBase& str, + size_t nStart2, size_t nLen2) const +{ + wxASSERT(nStart <= length()); + wxASSERT(nStart2 <= str.length()); + size_type strLen = length() - nStart, + strLen2 = str.length() - nStart2; + nLen = strLen < nLen ? strLen : nLen; + nLen2 = strLen2 < nLen2 ? strLen2 : nLen2; + return ::wxDoCmp(data() + nStart, nLen, str.data() + nStart2, nLen2); +} - case _T('*'): - { - // ignore special chars immediately following this one - while ( *pszMask == _T('*') || *pszMask == _T('?') ) - pszMask++; +int STRINGCLASS::compare(const wxChar* sz) const +{ + size_t nLen = wxStrlen(sz); + return ::wxDoCmp(data(), length(), sz, nLen); +} - // if there is nothing more, match - if ( *pszMask == _T('\0') ) - return TRUE; +int STRINGCLASS::compare(size_t nStart, size_t nLen, + const wxChar* sz, size_t nCount) const +{ + wxASSERT(nStart <= length()); + size_type strLen = length() - nStart; + nLen = strLen < nLen ? strLen : nLen; + if( nCount == npos ) + nCount = wxStrlen(sz); - // are there any other metacharacters in the mask? - size_t uiLenMask; - const wxChar *pEndMask = wxStrpbrk(pszMask, _T("*?")); + return ::wxDoCmp(data() + nStart, nLen, sz, nCount); +} - if ( pEndMask != NULL ) { - // we have to match the string between two metachars - uiLenMask = pEndMask - pszMask; - } - else { - // we have to match the remainder of the string - uiLenMask = wxStrlen(pszMask); - } +#undef STRINGCLASS - wxString strToMatch(pszMask, uiLenMask); - const wxChar* pMatch = wxStrstr(pszTxt, strToMatch); - if ( pMatch == NULL ) - return FALSE; +#endif // !wxUSE_STL || !defined(HAVE_STD_STRING_COMPARE) - // -1 to compensate "++" in the loop - pszTxt = pMatch + uiLenMask - 1; - pszMask += uiLenMask - 1; - } - break; +// =========================================================================== +// wxString class core +// =========================================================================== - default: - if ( *pszMask != *pszTxt ) - return FALSE; - break; - } - } +// --------------------------------------------------------------------------- +// construction and conversion +// --------------------------------------------------------------------------- - // match only if nothing left - return *pszTxt == _T('\0'); -} +#if wxUSE_UNICODE -// Count the number of chars -int wxString::Freq(wxChar ch) const +// from multibyte string +wxString::wxString(const char *psz, const wxMBConv& conv, size_t nLength) { - int count = 0; - int len = Len(); - for (int i = 0; i < len; i++) + // anything to do? + if ( psz && nLength != 0 ) { - if (GetChar(i) == ch) - count ++; + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } + + size_t nLenWide; + wxWCharBuffer wbuf = conv.cMB2WC(psz, nLength, &nLenWide); + + if ( nLenWide ) + assign(wbuf, nLenWide); } - return count; } -// convert to upper case, return the copy of the string -wxString wxString::Upper() const -{ wxString s(*this); return s.MakeUpper(); } - -// convert to lower case, return the copy of the string -wxString wxString::Lower() const { wxString s(*this); return s.MakeLower(); } +//Convert wxString in Unicode mode to a multi-byte string +const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const +{ + return conv.cWC2MB(c_str(), length() + 1 /* size, not length */, NULL); +} -int wxString::sprintf(const wxChar *pszFormat, ...) - { - va_list argptr; - va_start(argptr, pszFormat); - int iLen = PrintfV(pszFormat, argptr); - va_end(argptr); - return iLen; - } +#else // ANSI -// --------------------------------------------------------------------------- -// standard C++ library string functions -// --------------------------------------------------------------------------- -#ifdef wxSTD_STRING_COMPATIBILITY +#if wxUSE_WCHAR_T -wxString& wxString::insert(size_t nPos, const wxString& str) +// from wide string +wxString::wxString(const wchar_t *pwz, const wxMBConv& conv, size_t nLength) { - wxASSERT( str.GetStringData()->IsValid() ); - wxASSERT( nPos <= Len() ); - - if ( !str.IsEmpty() ) { - wxString strTmp; - wxChar *pc = strTmp.GetWriteBuf(Len() + str.Len()); - wxStrncpy(pc, c_str(), nPos); - wxStrcpy(pc + nPos, str); - wxStrcpy(pc + nPos + str.Len(), c_str() + nPos); - strTmp.UngetWriteBuf(); - *this = strTmp; - } + // anything to do? + if ( pwz && nLength != 0 ) + { + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } - return *this; + size_t nLenMB; + wxCharBuffer buf = conv.cWC2MB(pwz, nLength, &nLenMB); + + if ( nLenMB ) + assign(buf, nLenMB); + } } -size_t wxString::find(const wxString& str, size_t nStart) const +//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 { - wxASSERT( str.GetStringData()->IsValid() ); - wxASSERT( nStart <= Len() ); + return conv.cMB2WC(c_str(), length() + 1 /* size, not length */, NULL); +} - const wxChar *p = wxStrstr(c_str() + nStart, str); +#endif // wxUSE_WCHAR_T - return p == NULL ? npos : p - c_str(); -} +#endif // Unicode/ANSI -// VC++ 1.5 can't cope with the default argument in the header. -#if !defined(__VISUALC__) || defined(__WIN32__) -size_t wxString::find(const wxChar* sz, size_t nStart, size_t n) const +// shrink to minimal size (releasing extra memory) +bool wxString::Shrink() { - return find(wxString(sz, n == npos ? 0 : n), nStart); + wxString tmp(begin(), end()); + swap(tmp); + return tmp.length() == length(); } -#endif // VC++ 1.5 -// Gives a duplicate symbol (presumably a case-insensitivity problem) -#if !defined(__BORLANDC__) -size_t wxString::find(wxChar ch, size_t nStart) const +#if !wxUSE_STL +// get the pointer to writable buffer of (at least) nLen bytes +wxChar *wxString::GetWriteBuf(size_t nLen) { - wxASSERT( nStart <= Len() ); + if ( !AllocBeforeWrite(nLen) ) { + // allocation failure handled by caller + return NULL; + } - const wxChar *p = wxStrchr(c_str() + nStart, ch); + wxASSERT( GetStringData()->nRefs == 1 ); + GetStringData()->Validate(false); - return p == NULL ? npos : p - c_str(); + return m_pchData; } -#endif -size_t wxString::rfind(const wxString& str, size_t nStart) const +// put string back in a reasonable state after GetWriteBuf +void wxString::UngetWriteBuf() { - wxASSERT( str.GetStringData()->IsValid() ); - wxASSERT( nStart <= Len() ); - - // TODO could be made much quicker than that - const wxChar *p = c_str() + (nStart == npos ? Len() : nStart); - while ( p >= c_str() + str.Len() ) { - if ( wxStrncmp(p - str.Len(), str, str.Len()) == 0 ) - return p - str.Len() - c_str(); - p--; - } - - return npos; + GetStringData()->nDataLength = wxStrlen(m_pchData); + GetStringData()->Validate(true); } -// VC++ 1.5 can't cope with the default argument in the header. -#if !defined(__VISUALC__) || defined(__WIN32__) -size_t wxString::rfind(const wxChar* sz, size_t nStart, size_t n) const +void wxString::UngetWriteBuf(size_t nLen) { - return rfind(wxString(sz, n == npos ? 0 : n), nStart); + GetStringData()->nDataLength = nLen; + GetStringData()->Validate(true); } +#endif -size_t wxString::rfind(wxChar ch, size_t nStart) const -{ - if ( nStart == npos ) - { - nStart = Len(); - } - else - { - wxASSERT( nStart <= Len() ); - } +// --------------------------------------------------------------------------- +// data access +// --------------------------------------------------------------------------- + +// all functions are inline in string.h - const wxChar *p = wxStrrchr(c_str(), ch); +// --------------------------------------------------------------------------- +// assignment operators +// --------------------------------------------------------------------------- - if ( p == NULL ) - return npos; +#if !wxUSE_UNICODE - size_t result = p - c_str(); - return ( result > nStart ) ? npos : result; +// same as 'signed char' variant +wxString& wxString::operator=(const unsigned char* psz) +{ + *this = (const char *)psz; + return *this; } -#endif // VC++ 1.5 -size_t wxString::find_first_of(const wxChar* sz, size_t nStart) const +#if wxUSE_WCHAR_T +wxString& wxString::operator=(const wchar_t *pwz) { - const wxChar *start = c_str() + nStart; - const wxChar *firstOf = wxStrpbrk(start, sz); - if ( firstOf ) - return firstOf - start; - else - return npos; + 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 wxString::find_last_of(const wxChar* sz, size_t nStart) const +wxString operator+(const wxString& str1, const wxString& str2) { - if ( nStart == npos ) - { - nStart = Len(); - } - else - { - wxASSERT( nStart <= Len() ); - } +#if !wxUSE_STL + wxASSERT( str1.GetStringData()->IsValid() ); + wxASSERT( str2.GetStringData()->IsValid() ); +#endif - for ( const wxChar *p = c_str() + length() - 1; p >= c_str(); p-- ) - { - if ( wxStrchr(sz, *p) ) - return p - c_str(); - } + wxString s = str1; + s += str2; - return npos; + return s; } -size_t wxString::find_first_not_of(const wxChar* sz, size_t nStart) const +wxString operator+(const wxString& str, wxChar ch) { - if ( nStart == npos ) - { - nStart = Len(); - } - else - { - wxASSERT( nStart <= Len() ); - } +#if !wxUSE_STL + wxASSERT( str.GetStringData()->IsValid() ); +#endif - size_t nAccept = wxStrspn(c_str() + nStart, sz); - if ( nAccept >= length() - nStart ) - return npos; - else - return nAccept; + wxString s = str; + s += ch; + + return s; } -size_t wxString::find_first_not_of(wxChar ch, size_t nStart) const +wxString operator+(wxChar ch, const wxString& str) { - wxASSERT( nStart <= Len() ); +#if !wxUSE_STL + wxASSERT( str.GetStringData()->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 wxString::find_last_not_of(const wxChar* sz, size_t nStart) const +wxString operator+(const wxString& str, const wxChar *psz) { - if ( nStart == npos ) - { - nStart = Len(); - } - else - { - wxASSERT( nStart <= Len() ); - } +#if !wxUSE_STL + wxASSERT( str.GetStringData()->IsValid() ); +#endif - for ( const wxChar *p = c_str() + nStart - 1; p >= c_str(); p-- ) - { - if ( !wxStrchr(sz, *p) ) - return p - c_str(); + wxString s; + if ( !s.Alloc(wxStrlen(psz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); } + s += str; + s += psz; - return npos; + return s; } -size_t wxString::find_last_not_of(wxChar ch, size_t nStart) const +wxString operator+(const wxChar *psz, const wxString& str) { - if ( nStart == npos ) - { - nStart = Len(); - } +#if !wxUSE_STL + wxASSERT( str.GetStringData()->IsValid() ); +#endif + + wxString s; + if ( !s.Alloc(wxStrlen(psz) + str.length()) ) { + wxFAIL_MSG( _T("out of memory in wxString::operator+") ); + } + s = psz; + s += str; + + return s; +} + +// =========================================================================== +// other common string functions +// =========================================================================== + +int wxString::Cmp(const wxString& s) const +{ + return compare(s); +} + +int wxString::Cmp(const wxChar* psz) const +{ + return compare(psz); +} + +static inline int wxDoCmpNoCase(const wxChar* s1, size_t l1, + const wxChar* s2, size_t l2) +{ + size_t i; + + 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 { - wxASSERT( nStart <= Len() ); + 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; } +} + +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); + + return wxDoCmpNoCase(data(), length(), psz, nLen); +} + + +#if wxUSE_UNICODE - for ( const wxChar *p = c_str() + nStart - 1; p >= c_str(); p-- ) +#ifdef __MWERKS__ +#ifndef __SCHAR_MAX__ +#define __SCHAR_MAX__ 127 +#endif +#endif + +wxString wxString::FromAscii(const char *ascii) +{ + if (!ascii) + return wxEmptyString; + + size_t len = strlen( ascii ); + wxString res; + + if ( len ) { - if ( *p != ch ) - return p - c_str(); + wxStringBuffer buf(res, len); + + wchar_t *dest = buf; + + for ( ;; ) + { + if ( (*dest++ = (wchar_t)(unsigned char)*ascii++) == L'\0' ) + break; + } + } + + return res; +} + +wxString wxString::FromAscii(const char ascii) +{ + // What do we do with '\0' ? + + wxString res; + res += (wchar_t)(unsigned char) ascii; + + return res; +} + +const wxCharBuffer wxString::ToAscii() const +{ + // this will allocate enough space for the terminating NUL too + wxCharBuffer buffer(length()); + + + char *dest = buffer.data(); + + const wchar_t *pwc = c_str(); + for ( ;; ) + { + *dest++ = (char)(*pwc > SCHAR_MAX ? wxT('_') : *pwc); + + // the output string can't have embedded NULs anyhow, so we can safely + // stop at first of them even if we do have any + if ( !*pwc++ ) + break; + } + + return buffer; +} + +#endif // Unicode + +// extract string of length nCount starting at nFirst +wxString wxString::Mid(size_t nFirst, size_t nCount) const +{ + size_t nLen = length(); + + // 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; + } + + 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") ); + } + + return dest; +} + +// check that the string starts with prefix and return the rest of the string +// in the provided pointer if it is not NULL, otherwise return false +bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const +{ + wxASSERT_MSG( prefix, _T("invalid parameter in wxString::StartsWith") ); + + // first check if the beginning of the string matches the prefix: note + // that we don't have to check that we don't run out of this string as + // when we reach the terminating NUL, either prefix string ends too (and + // then it's ok) or we break out of the loop because there is no match + const wxChar *p = c_str(); + while ( *prefix ) + { + if ( *prefix++ != *p++ ) + { + // no match + return false; + } + } + + if ( rest ) + { + // put the rest of the string into provided pointer + *rest = p; + } + + 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 +{ + if ( nCount > length() ) + nCount = length(); + + wxString dest(*this, length() - nCount, nCount); + if ( dest.length() != nCount ) { + wxFAIL_MSG( _T("out of memory in wxString::Right") ); + } + return dest; +} + +// get all characters after the last occurence of ch +// (returns the whole string if ch not found) +wxString wxString::AfterLast(wxChar ch) const +{ + wxString str; + int iPos = Find(ch, true); + if ( iPos == wxNOT_FOUND ) + str = *this; + else + str = c_str() + iPos + 1; + + return str; +} + +// extract nCount first (leftmost) characters +wxString wxString::Left(size_t nCount) const +{ + if ( nCount > length() ) + nCount = length(); + + wxString dest(*this, 0, nCount); + if ( dest.length() != nCount ) { + wxFAIL_MSG( _T("out of memory in wxString::Left") ); + } + return dest; +} + +// get all characters before the first occurence of ch +// (returns the whole string if ch not found) +wxString wxString::BeforeFirst(wxChar ch) const +{ + int iPos = Find(ch); + if ( iPos == wxNOT_FOUND ) iPos = length(); + return wxString(*this, 0, iPos); +} + +/// get all characters before the last occurence of ch +/// (returns empty string if ch not found) +wxString wxString::BeforeLast(wxChar ch) const +{ + wxString str; + int iPos = Find(ch, true); + if ( iPos != wxNOT_FOUND && iPos != 0 ) + str = wxString(c_str(), iPos); + + return str; +} + +/// get all characters after the first occurence of ch +/// (returns empty string if ch not found) +wxString wxString::AfterFirst(wxChar ch) const +{ + wxString str; + int iPos = Find(ch); + if ( iPos != wxNOT_FOUND ) + str = c_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) +{ + // 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 uiOldLen = wxStrlen(szOld); + size_t uiNewLen = wxStrlen(szNew); + + size_t dwPos = 0; + + 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; + + // stop now? + if ( !bReplaceAll ) + break; // exit the loop + } + } + + return uiCount; +} + +bool wxString::IsAscii() const +{ + const wxChar *s = (const wxChar*) *this; + while(*s){ + if(!isascii(*s)) return(false); + s++; + } + return(true); +} + +bool wxString::IsWord() const +{ + const wxChar *s = (const wxChar*) *this; + while(*s){ + if(!wxIsalpha(*s)) return(false); + s++; + } + return(true); +} + +bool wxString::IsNumber() const +{ + const wxChar *s = (const wxChar*) *this; + if (wxStrlen(s)) + if ((s[0] == wxT('-')) || (s[0] == wxT('+'))) s++; + while(*s){ + if(!wxIsdigit(*s)) return(false); + s++; + } + return(true); +} + +wxString wxString::Strip(stripType w) const +{ + wxString s = *this; + if ( w & leading ) s.Trim(false); + if ( w & trailing ) s.Trim(true); + return s; +} + +// --------------------------------------------------------------------------- +// case conversion +// --------------------------------------------------------------------------- + +wxString& wxString::MakeUpper() +{ + for ( iterator it = begin(), en = end(); it != en; ++it ) + *it = (wxChar)wxToupper(*it); + + return *this; +} + +wxString& wxString::MakeLower() +{ + for ( iterator it = begin(), en = end(); it != en; ++it ) + *it = (wxChar)wxTolower(*it); + + return *this; +} + +// --------------------------------------------------------------------------- +// trimming and padding +// --------------------------------------------------------------------------- + +// some compilers (VC++ 6.0 not to name them) return true for a call to +// isspace('ê') in the C locale which seems to be broken to me, but we have to +// live with this by checking that the character is a 7 bit one - even if this +// may fail to detect some spaces (I don't know if Unicode doesn't have +// space-like symbols somewhere except in the first 128 chars), it is arguably +// still better than trimming away accented letters +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(length() - 1))) || + (!bFromRight && wxSafeIsspace(GetChar(0u))) + ) + ) + { + 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); + } + } + + 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); + + if ( bFromRight ) + *this += s; + else + { + s += *this; + swap(s); + } + + return *this; +} + +// truncate the string +wxString& wxString::Truncate(size_t uiLen) +{ + if ( uiLen < length() ) + { + erase(begin() + uiLen, end()); } + //else: nothing to do, string is already short enough + + return *this; +} + +// --------------------------------------------------------------------------- +// finding (return wxNOT_FOUND if not found and index otherwise) +// --------------------------------------------------------------------------- + +// find a character +int wxString::Find(wxChar ch, bool bFromEnd) const +{ + size_type idx = bFromEnd ? find_last_of(ch) : find_first_of(ch); + + 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); + + return (idx == npos) ? wxNOT_FOUND : (int)idx; +} + +// ---------------------------------------------------------------------------- +// conversion to numbers +// ---------------------------------------------------------------------------- + +// the implementation of all the functions below is exactly the same so factor +// it out +#ifndef __WATCOMC__ + +template +bool wxStringToIntType(const wxChar *start, + T *val, + int base, + T (*func)(const wxChar *, wxChar **, int)) +{ + wxCHECK_MSG( val, false, _T("NULL output pointer") ); + wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); + + errno = 0; + + wxChar *end; + *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 and no under/overflow occurred + return !*end && (end != start) && (errno != ERANGE); +} + +#define wxSTR2INT(val, b, func) return wxStringToIntType(c_str(), val, b, func) + +#else // __WATCOMC__ + +// FIXME, TODO, ASAP !!! - ugly trick to make release for Open Watcom possible +// without changing code flow for other compilers + +#define wxSTR2INT(val, base, func) \ + wxCHECK_MSG( val, false, _T("NULL output pointer") ); \ + wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") ); \ + \ + errno = 0; \ + \ + wxChar *end; \ + *val = (*func)(c_str(), &end, base); \ + \ + return !*end && (end != c_str()) && (errno != ERANGE) + +#endif // !__WATCOMC__/__WATCOMC__ + +bool wxString::ToLong(long *val, int base) const +{ + wxSTR2INT(val, base, wxStrtol); +} + +bool wxString::ToULong(unsigned long *val, int base) const +{ + wxSTR2INT(val, base, wxStrtoul); +} + +bool wxString::ToLongLong(wxLongLong_t *val, int base) const +{ +#ifdef wxHAS_STRTOLL + wxSTR2INT(val, base, wxStrtoll); +#else + // TODO: implement this ourselves + wxUnusedVar(val); + wxUnusedVar(base); + return false; +#endif // wxHAS_STRTOLL +} + +bool wxString::ToULongLong(wxULongLong_t *val, int base) const +{ +#ifdef wxHAS_STRTOLL + wxSTR2INT(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") ); + + errno = 0; + + 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 and no under/overflow occurred + return !*end && (end != start) && (errno != ERANGE); +} + +// --------------------------------------------------------------------------- +// formatted output +// --------------------------------------------------------------------------- + +/* static */ +wxString wxString::Format(const wxChar *pszFormat, ...) +{ + va_list argptr; + va_start(argptr, pszFormat); + + wxString s; + s.PrintfV(pszFormat, argptr); + + va_end(argptr); + + return s; +} + +/* static */ +wxString wxString::FormatV(const wxChar *pszFormat, va_list argptr) +{ + wxString s; + s.PrintfV(pszFormat, argptr); + return s; +} + +int wxString::Printf(const wxChar *pszFormat, ...) +{ + va_list argptr; + va_start(argptr, pszFormat); + + int iLen = PrintfV(pszFormat, argptr); + + va_end(argptr); + + return iLen; +} + +int wxString::PrintfV(const wxChar* pszFormat, va_list argptr) +{ + int size = 1024; + + for ( ;; ) + { + 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); + int 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'); + + // 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 (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 + { + break; + } + } + + // we could have overshot + Shrink(); + + return length(); +} + +// ---------------------------------------------------------------------------- +// misc other operations +// ---------------------------------------------------------------------------- + +// returns true if the string matches the pattern which may contain '*' and +// '?' metacharacters (as usual, '?' matches any character and '*' any number +// of them) +bool wxString::Matches(const wxChar *pszMask) const +{ + // I disable this code as it doesn't seem to be faster (in fact, it seems + // to be much slower) than the old, hand-written code below and using it + // here requires always linking with libregex even if the user code doesn't + // use it +#if 0 // wxUSE_REGEX + // first translate the shell-like mask into a regex + wxString pattern; + pattern.reserve(wxStrlen(pszMask)); + + pattern += _T('^'); + while ( *pszMask ) + { + switch ( *pszMask ) + { + case _T('?'): + pattern += _T('.'); + break; + + case _T('*'): + pattern += _T(".*"); + break; + + case _T('^'): + case _T('.'): + case _T('$'): + case _T('('): + case _T(')'): + case _T('|'): + case _T('+'): + case _T('\\'): + // these characters are special in a RE, quote them + // (however note that we don't quote '[' and ']' to allow + // using them for Unix shell like matching) + pattern += _T('\\'); + // fall through + + default: + pattern += *pszMask; + } + + pszMask++; + } + pattern += _T('$'); + + // and now use it + return wxRegEx(pattern, wxRE_NOSUB | wxRE_EXTENDED).Matches(c_str()); +#else // !wxUSE_REGEX + // TODO: this is, of course, awfully inefficient... + + // the char currently being checked + const wxChar *pszTxt = c_str(); + + // the last location where '*' matched + const wxChar *pszLastStarInText = NULL; + const wxChar *pszLastStarInMask = NULL; + +match: + for ( ; *pszMask != wxT('\0'); pszMask++, pszTxt++ ) { + switch ( *pszMask ) { + case wxT('?'): + if ( *pszTxt == wxT('\0') ) + return false; + + // pszTxt and pszMask will be incremented in the loop statement + + break; + + case wxT('*'): + { + // remember where we started to be able to backtrack later + pszLastStarInText = pszTxt; + pszLastStarInMask = pszMask; + + // ignore special chars immediately following this one + // (should this be an error?) + while ( *pszMask == wxT('*') || *pszMask == wxT('?') ) + pszMask++; + + // if there is nothing more, match + if ( *pszMask == wxT('\0') ) + return true; + + // are there any other metacharacters in the mask? + size_t uiLenMask; + const wxChar *pEndMask = wxStrpbrk(pszMask, wxT("*?")); + + if ( pEndMask != NULL ) { + // we have to match the string between two metachars + uiLenMask = pEndMask - pszMask; + } + else { + // we have to match the remainder of the string + uiLenMask = wxStrlen(pszMask); + } + + wxString strToMatch(pszMask, uiLenMask); + const wxChar* pMatch = wxStrstr(pszTxt, strToMatch); + if ( pMatch == NULL ) + return false; + + // -1 to compensate "++" in the loop + pszTxt = pMatch + uiLenMask - 1; + pszMask += uiLenMask - 1; + } + break; - return npos; -} + default: + if ( *pszMask != *pszTxt ) + return false; + break; + } + } -wxString wxString::substr(size_t nStart, size_t nLen) const -{ - // npos means 'take all' - if ( nLen == npos ) - nLen = 0; + // match only if nothing left + if ( *pszTxt == wxT('\0') ) + return true; - wxASSERT( nStart + nLen <= Len() ); + // if we failed to match, backtrack if we can + if ( pszLastStarInText ) { + pszTxt = pszLastStarInText + 1; + pszMask = pszLastStarInMask; - return wxString(c_str() + nStart, nLen == npos ? 0 : nLen); -} + pszLastStarInText = NULL; -wxString& wxString::erase(size_t nStart, size_t nLen) -{ - wxString strTmp(c_str(), nStart); - if ( nLen != npos ) { - wxASSERT( nStart + nLen <= Len() ); + // don't bother resetting pszLastStarInMask, it's unnecessary - strTmp.append(c_str() + nStart + nLen); + goto match; } - *this = strTmp; - return *this; + return false; +#endif // wxUSE_REGEX/!wxUSE_REGEX } -wxString& wxString::replace(size_t nStart, size_t nLen, const wxChar *sz) +// Count the number of chars +int wxString::Freq(wxChar ch) const { - wxASSERT( nStart + nLen <= wxStrlen(sz) ); + int count = 0; + int len = length(); + for (int i = 0; i < len; i++) + { + if (GetChar(i) == ch) + count ++; + } + return count; +} - wxString strTmp; - if ( nStart != 0 ) - strTmp.append(c_str(), nStart); - strTmp += sz; - strTmp.append(c_str() + nStart + nLen); +// convert to upper case, return the copy of the string +wxString wxString::Upper() const +{ wxString s(*this); return s.MakeUpper(); } - *this = strTmp; - return *this; -} +// convert to lower case, return the copy of the string +wxString wxString::Lower() const { wxString s(*this); return s.MakeLower(); } -wxString& wxString::replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch) -{ - return replace(nStart, nLen, wxString(ch, nCount)); -} +int wxString::sprintf(const wxChar *pszFormat, ...) + { + va_list argptr; + va_start(argptr, pszFormat); + int iLen = PrintfV(pszFormat, argptr); + va_end(argptr); + return iLen; + } -wxString& wxString::replace(size_t nStart, size_t nLen, - const wxString& str, size_t nStart2, size_t nLen2) +// ============================================================================ +// ArrayString +// ============================================================================ + +#include "wx/arrstr.h" + +wxArrayString::wxArrayString(size_t sz, const wxChar** a) { - return replace(nStart, nLen, str.substr(nStart2, nLen2)); +#if !wxUSE_STL + Init(false); +#endif + for (size_t i=0; i < sz; i++) + Add(a[i]); } -wxString& wxString::replace(size_t nStart, size_t nLen, - const wxChar* sz, size_t nCount) +wxArrayString::wxArrayString(size_t sz, const wxString* a) { - return replace(nStart, nLen, wxString(sz, nCount)); +#if !wxUSE_STL + Init(false); +#endif + for (size_t i=0; i < sz; i++) + Add(a[i]); } -#endif //std::string compatibility +#if !wxUSE_STL -// ============================================================================ -// ArrayString -// ============================================================================ - -// size increment = max(50% of current size, ARRAY_MAXSIZE_INCREMENT) +// 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) +#define ARRAY_DEFAULT_INITIAL_SIZE (16) #endif #define STRING(p) ((wxString *)(&(p))) // ctor -wxArrayString::wxArrayString() +void wxArrayString::Init(bool autoSort) { m_nSize = m_nCount = 0; m_pItems = (wxChar **) NULL; + m_autoSort = autoSort; } // copy ctor wxArrayString::wxArrayString(const wxArrayString& src) { - m_nSize = - m_nCount = 0; - m_pItems = (wxChar **) NULL; + Init(src.m_autoSort); *this = src; } @@ -1658,45 +2088,50 @@ 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); - // we can't just copy the pointers here because otherwise we would share - // the strings with another array for ( size_t n = 0; n < src.m_nCount; n++ ) Add(src[n]); - - if ( m_nCount != 0 ) - memcpy(m_pItems, src.m_pItems, m_nCount*sizeof(wxChar *)); - - return *this; } // grow the array -void wxArrayString::Grow() +void wxArrayString::Grow(size_t nIncrement) { // only do it if no more place - if( m_nCount == m_nSize ) { - if( m_nSize == 0 ) { + 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 -#if defined(__VISAGECPP__) - int array_size = ARRAY_DEFAULT_INITIAL_SIZE; - wxASSERT( array_size != 0 ); -#else - wxASSERT( ARRAY_DEFAULT_INITIAL_SIZE != 0 ); -#endif - // add 50% but not too much - size_t nIncrement = m_nSize < ARRAY_DEFAULT_INITIAL_SIZE + size_t ndefIncrement = m_nSize < ARRAY_DEFAULT_INITIAL_SIZE ? ARRAY_DEFAULT_INITIAL_SIZE : m_nSize >> 1; - if ( nIncrement > ARRAY_MAXSIZE_INCREMENT ) - nIncrement = ARRAY_MAXSIZE_INCREMENT; + if ( ndefIncrement > ARRAY_MAXSIZE_INCREMENT ) + ndefIncrement = ARRAY_MAXSIZE_INCREMENT; + if ( nIncrement < ndefIncrement ) + nIncrement = ndefIncrement; m_nSize += nIncrement; wxChar **pNew = new wxChar *[m_nSize]; @@ -1745,11 +2180,14 @@ wxArrayString::~wxArrayString() wxDELETEA(m_pItems); } +void wxArrayString::reserve(size_t nSize) +{ + Alloc(nSize); +} + // pre-allocates memory (frees the previous data!) void wxArrayString::Alloc(size_t nSize) { - wxASSERT( nSize > 0 ); - // only if old buffer was not big enough if ( nSize > m_nSize ) { Free(); @@ -1776,23 +2214,73 @@ void wxArrayString::Shrink() } } +#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 ( bFromEnd ) { - if ( m_nCount > 0 ) { - size_t ui = m_nCount; - do { - if ( STRING(m_pItems[--ui])->IsSameAs(sz, bCase) ) - return ui; - } - while ( ui != 0 ); + 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 { - for( size_t ui = 0; ui < m_nCount; ui++ ) { - if( STRING(m_pItems[ui])->IsSameAs(sz, bCase) ) - return ui; + // 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; + } } } @@ -1800,46 +2288,123 @@ int wxArrayString::Index(const wxChar *sz, bool bCase, bool bFromEnd) const } // add item at the end -void wxArrayString::Add(const wxString& str) -{ - wxASSERT( str.GetStringData()->IsValid() ); +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); - Grow(); + for (size_t i = 0; i < nInsert; i++) + { + // the string data must not be deleted! + str.GetStringData()->Lock(); - // the string data must not be deleted! - str.GetStringData()->Lock(); - m_pItems[m_nCount++] = (wxChar *)str.c_str(); + // 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) +void wxArrayString::Insert(const wxString& str, size_t nIndex, size_t nInsert) { wxASSERT( str.GetStringData()->IsValid() ); - wxCHECK_RET( nIndex <= m_nCount, _("bad index in wxArrayString::Insert") ); + 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(); + Grow(nInsert); - memmove(&m_pItems[nIndex + 1], &m_pItems[nIndex], + memmove(&m_pItems[nIndex + nInsert], &m_pItems[nIndex], (m_nCount - nIndex)*sizeof(wxChar *)); - str.GetStringData()->Lock(); - m_pItems[nIndex] = (wxChar *)str.c_str(); + 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); - m_nCount++; + wxString s; + while ( m_nCount < count ) + m_pItems[m_nCount++] = (wxChar *)s.c_str(); } // removes item from array (by index) -void wxArrayString::Remove(size_t nIndex) +void wxArrayString::RemoveAt(size_t nIndex, size_t nRemove) { - wxCHECK_RET( nIndex <= m_nCount, _("bad index in wxArrayString::Remove") ); + 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 - Item(nIndex).GetStringData()->Unlock(); + for (size_t i = 0; i < nRemove; i++) + Item(nIndex + i).GetStringData()->Unlock(); - memmove(&m_pItems[nIndex], &m_pItems[nIndex + 1], - (m_nCount - nIndex - 1)*sizeof(wxChar *)); - m_nCount--; + memmove(&m_pItems[nIndex], &m_pItems[nIndex + nRemove], + (m_nCount - nIndex - nRemove)*sizeof(wxChar *)); + m_nCount -= nRemove; } // removes item from array (by value) @@ -1848,9 +2413,16 @@ void wxArrayString::Remove(const wxChar *sz) int iIndex = Index(sz); wxCHECK_RET( iIndex != wxNOT_FOUND, - _("removing inexistent element in wxArrayString::Remove") ); + wxT("removing inexistent element in wxArrayString::Remove") ); - Remove(iIndex); + RemoveAt(iIndex); +} + +void wxArrayString::assign(const_iterator first, const_iterator last) +{ + reserve(last - first); + for(; first != last; ++first) + push_back(*first); } // ---------------------------------------------------------------------------- @@ -1862,19 +2434,7 @@ void wxArrayString::Remove(const wxChar *sz) #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 @@ -1882,10 +2442,11 @@ 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; +static bool gs_sortAscending = true; // function which is called by quick sort -static int LINKAGEMODE wxStringCompareFunction(const void *first, const void *second) +extern "C" int wxC_CALLING_CONV // LINKAGEMODE +wxStringCompareFunction(const void *first, const void *second) { wxString *strFirst = (wxString *)first; wxString *strSecond = (wxString *)second; @@ -1895,7 +2456,7 @@ static int LINKAGEMODE wxStringCompareFunction(const void *first, const void *se } else { // maybe we should use wxStrcoll - int result = wxStrcmp(strFirst->c_str(), strSecond->c_str()); + int result = strFirst->Cmp(*strSecond); return gs_sortAscending ? result : -result; } @@ -1904,452 +2465,64 @@ static int LINKAGEMODE wxStringCompareFunction(const void *first, const void *se // 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; DoSort(); - END_SORT(); -} - -void wxArrayString::Sort(bool reverseOrder) -{ - START_SORT(); - - wxASSERT( !gs_compareFunction ); // must have been reset to NULL - gs_sortAscending = !reverseOrder; - - DoSort(); - - END_SORT(); -} - -void wxArrayString::DoSort() -{ - // 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); -} - -// ============================================================================ -// MBConv -// ============================================================================ - -WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc; -#if !wxUSE_WCHAR_T -WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile; -#endif - -#if wxUSE_WCHAR_T - -// ---------------------------------------------------------------------------- -// standard libc conversion -// ---------------------------------------------------------------------------- - -WXDLLEXPORT_DATA(wxMBConv) wxConvLibc; - -size_t wxMBConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const -{ - return wxMB2WC(buf, psz, n); -} - -size_t wxMBConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const -{ - return wxWC2MB(buf, psz, n); -} - -// ---------------------------------------------------------------------------- -// standard file conversion -// ---------------------------------------------------------------------------- - -WXDLLEXPORT_DATA(wxMBConvFile) wxConvFile; - -// just use the libc conversion for now -size_t wxMBConvFile::MB2WC(wchar_t *buf, const char *psz, size_t n) const -{ - return wxMB2WC(buf, psz, n); -} - -size_t wxMBConvFile::WC2MB(char *buf, const wchar_t *psz, size_t n) const -{ - return wxWC2MB(buf, psz, n); + // reset it to NULL so that Sort(bool) will work the next time + gs_compareFunction = NULL; } -// ---------------------------------------------------------------------------- -// standard gdk conversion -// ---------------------------------------------------------------------------- - -#ifdef __WXGTK12__ -WXDLLEXPORT_DATA(wxMBConvGdk) wxConvGdk; - -#include - -size_t wxMBConvGdk::MB2WC(wchar_t *buf, const char *psz, size_t n) const +extern "C" { - if (buf) { - return gdk_mbstowcs((GdkWChar *)buf, psz, n); - } else { - GdkWChar *nbuf = new GdkWChar[n=strlen(psz)]; - size_t len = gdk_mbstowcs(nbuf, psz, n); - delete [] nbuf; - return len; - } + typedef int (wxC_CALLING_CONV * wxStringCompareFn)(const void *first, + const void *second); } -size_t wxMBConvGdk::WC2MB(char *buf, const wchar_t *psz, size_t n) const +void wxArrayString::Sort(CompareFunction2 compareFunction) { - char *mbstr = gdk_wcstombs((GdkWChar *)psz); - size_t len = mbstr ? strlen(mbstr) : 0; - if (buf) { - if (len > n) len = n; - memcpy(buf, psz, len); - if (len < n) buf[len] = 0; - } - return len; + qsort(m_pItems, m_nCount, sizeof(wxChar *), (wxStringCompareFn)compareFunction); } -#endif // GTK > 1.0 - -// ---------------------------------------------------------------------------- -// UTF-7 -// ---------------------------------------------------------------------------- -WXDLLEXPORT_DATA(wxMBConvUTF7) wxConvUTF7; - -#if 0 -static char utf7_setD[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789'(),-./:?"; -static char utf7_setO[]="!\"#$%&*;<=>@[]^_`{|}"; -static char utf7_setB[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789+/"; -#endif - -// TODO: write actual implementations of UTF-7 here -size_t wxMBConvUTF7::MB2WC(wchar_t * WXUNUSED(buf), - const char * WXUNUSED(psz), - size_t WXUNUSED(n)) const +void wxArrayString::Sort(bool reverseOrder) { - return 0; + Sort(reverseOrder ? wxStringSortDescending : wxStringSortAscending); } -size_t wxMBConvUTF7::WC2MB(char * WXUNUSED(buf), - const wchar_t * WXUNUSED(psz), - size_t WXUNUSED(n)) const +void wxArrayString::DoSort() { - return 0; -} - -// ---------------------------------------------------------------------------- -// UTF-8 -// ---------------------------------------------------------------------------- + wxCHECK_RET( !m_autoSort, wxT("can't use this method with sorted arrays") ); -WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8; - -static unsigned long utf8_max[]={0x7f,0x7ff,0xffff,0x1fffff,0x3ffffff,0x7fffffff,0xffffffff}; - -size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const -{ - size_t len = 0; - - while (*psz && ((!buf) || (len>cnt); - while (cnt--) { - cc = *psz++; - if ((cc&0xC0)!=0x80) { - // invalid UTF-8 sequence - return (size_t)-1; - } - res=(res<<6)|(cc&0x3f); - } - if (res<=utf8_max[ocnt]) { - // illegal UTF-8 encoding - return (size_t)-1; - } - if (buf) *buf++=res; - len++; - } - } - } - if (buf && (lenutf8_max[cnt]; cnt++); - if (!cnt) { - // plain ASCII char - if (buf) *buf++=cc; - len++; - } else { - len+=cnt+1; - if (buf) { - *buf++=(-128>>cnt)|((cc>>(cnt*6))&(0x3f>>cnt)); - while (cnt--) - *buf++=0x80|((cc>>(cnt*6))&0x3f); - } - } - } - if (buf && (lennames.Add(token.GetNextToken()); - } - else if (cmd == _T("")) - cset->names.Add(token.GetNextToken()); - else if (cmd == _T("")) - comchar = token.GetNextToken(); - else if (cmd == _T("")) - escchar = token.GetNextToken(); - else if (cmd == _T("")) { - delete cset; - cset = (wxCharacterSet *) NULL; - break; // we don't support multibyte charsets ourselves (yet) - } - else if (cmd == _T("CHARMAP")) { - cset->data = (wchar_t *)calloc(256, sizeof(wchar_t)); - in_charset = TRUE; - } - else if (cmd == _T("END")) { - if (token.GetNextToken() == _T("CHARMAP")) - in_charset = FALSE; - } - else if (in_charset) { - // format: /x00 NULL (NUL) - // /x41 LATIN CAPITAL LETTER A - wxString hex = token.GetNextToken(); - // skip whitespace (why doesn't wxStringTokenizer do this?) - while (wxIsEmpty(hex) && token.HasMoreTokens()) hex = token.GetNextToken(); - wxString uni = token.GetNextToken(); - // skip whitespace again - while (wxIsEmpty(uni) && token.HasMoreTokens()) uni = token.GetNextToken(); - if ((hex.Len() > 2) && (wxString(hex.GetChar(0)) == escchar) && (hex.GetChar(1) == _T('x')) && - (uni.Left(2) == _T("=0) { - unsigned long uni1 = ::wxHexToDec(uni.Mid(2,2)); - unsigned long uni2 = ::wxHexToDec(uni.Mid(4,2)); - cset->data[pos] = (uni1 << 16) | uni2; - // wxFprintf(stderr,_T("char %02x mapped to %04x (%c)\n"),pos,cset->data[pos],cset->data[pos]); - } - } - } - } - if (cset) { - cset->names.Shrink(); - wxCharsets.Add(cset); - } + for ( size_t n = 0; n < m_nCount; n++ ) + { + if ( Item(n) != a[n] ) + return false; } - } -#endif - wxCharsets.Shrink(); -} - -static wxCharacterSet *wxFindCharacterSet(const wxChar *charset) -{ - if (!charset) return (wxCharacterSet *)NULL; - wxLoadCharacterSets(); - for (size_t n=0; n4) { - if (wxString(charset,4) == _T("8859")) { - codeset << _T("8859-"); - if (*charset == _T('-')) charset++; - } - } - } - codeset << charset; - codeset.MakeUpper(); - m_name = wxStrdup(codeset.c_str()); - m_deferred = TRUE; -#endif - } + return true; } -void wxCSConv::LoadNow() -{ -// wxPrintf(_T("Conversion request\n")); - if (m_deferred) { - if (!m_name) { -#ifdef __UNIX__ - wxChar *lang = wxGetenv(_T("LANG")); - wxChar *dot = lang ? wxStrchr(lang, _T('.')) : (wxChar *)NULL; - if (dot) SetName(dot+1); -#endif - } - m_cset = wxFindCharacterSet(m_name); - m_deferred = FALSE; - } -} +#endif // !wxUSE_STL -size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const +int wxCMPFUNC_CONV wxStringSortAscending(wxString* s1, wxString* s2) { - ((wxCSConv *)this)->LoadNow(); // discard constness - if (buf) { - if (m_cset) { - for (size_t c=0; cdata[(unsigned char)(psz[c])]; - } else { - // latin-1 (direct) - for (size_t c=0; cCmp(*s2); } -size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const +int wxCMPFUNC_CONV wxStringSortDescending(wxString* s1, wxString* s2) { - ((wxCSConv *)this)->LoadNow(); // discard constness - if (buf) { - if (m_cset) { - for (size_t c=0; cdata[n] != psz[c]); n++); - buf[c] = (n>0xff) ? '?' : n; - } - } else { - // latin-1 (direct) - for (size_t c=0; c0xff) ? '?' : psz[c]; - } - return n; - } - return wcslen(psz); + return -s1->Cmp(*s2); } - -#endif//wxUSE_WCHAR_T - -#if wxUSE_WCHAR_T -const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const - { - if (psz) { - size_t nLen = MB2WC((wchar_t *) NULL, psz, 0); - wxWCharBuffer buf(nLen); - MB2WC(WCSTRINGCAST buf, psz, nLen); - return buf; - } else return wxWCharBuffer((wchar_t *) NULL); - } - -const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *psz) const - { - if (psz) { - size_t nLen = WC2MB((char *) NULL, psz, 0); - wxCharBuffer buf(nLen); - WC2MB(MBSTRINGCAST buf, psz, nLen); - return buf; - } else return wxCharBuffer((char *) NULL); - } - -#endif//wxUSE_WCHAR_T -