X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b1727cfef7e084b0ba52b69fbe948379d66981da..8ad31f9dfdb85a54cd080aac6957883f2f3e38e3:/src/common/string.cpp diff --git a/src/common/string.cpp b/src/common/string.cpp index af745047fe..04969d3246 100644 --- a/src/common/string.cpp +++ b/src/common/string.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: string.cpp +// Name: src/common/string.cpp // Purpose: wxString class // Author: Vadim Zeitlin, Ryan Norton // Modified by: @@ -25,26 +25,21 @@ #include "wx/wxprec.h" #ifdef __BORLANDC__ - #pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP - #include "wx/defs.h" - #include "wx/string.h" - #include "wx/intl.h" - #include "wx/thread.h" + #include "wx/string.h" + #include "wx/intl.h" + #include "wx/thread.h" #endif #include #include #include -#ifndef __WXMSW__ -#include -#endif - #ifdef __SALFORDC__ - #include + #include #endif // allocating extra space for each string consumes more memory but speeds up @@ -1010,114 +1005,58 @@ int STRINGCLASS::compare(size_t nStart, size_t nLen, #if wxUSE_UNICODE // from multibyte string -wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength) +wxString::wxString(const char *psz, const wxMBConv& conv, size_t nLength) { - // if nLength != npos, then we have to make a NULL-terminated copy - // of first nLength bytes of psz first because the input buffer to MB2WC - // must always be NULL-terminated: - wxCharBuffer inBuf((const char *)NULL); - if (nLength != npos) - { - wxASSERT( psz != NULL ); - wxCharBuffer tmp(nLength); - memcpy(tmp.data(), psz, nLength); - tmp.data()[nLength] = '\0'; - inBuf = tmp; - psz = inBuf.data(); - } - - // first get the size of the buffer we need - size_t nLen; - if ( psz ) - { - // calculate the needed size ourselves or use the provided one - if (nLength == npos) - nLen = strlen(psz); - else - nLen = nLength; - } - else - { - // nothing to convert - nLen = 0; - } - - // anything to do? - if ( (nLen != 0) && (nLen != (size_t)-1) ) + if ( psz && nLength != 0 ) { - //Convert string - size_t nRealSize; - wxWCharBuffer theBuffer = conv.cMB2WC(psz, nLen, &nRealSize); + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } + + size_t nLenWide; + wxWCharBuffer wbuf = conv.cMB2WC(psz, nLength, &nLenWide); - //Copy - if (nRealSize) - assign( theBuffer.data() , nRealSize - 1 ); + if ( nLenWide ) + assign(wbuf, nLenWide); } } //Convert wxString in Unicode mode to a multi-byte string -const wxCharBuffer wxString::mb_str(wxMBConv& conv) const +const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const { - size_t dwOutSize; - return conv.cWC2MB(c_str(), length(), &dwOutSize); + return conv.cWC2MB(c_str(), length() + 1 /* size, not length */, NULL); } #else // ANSI #if wxUSE_WCHAR_T + // from wide string -wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength) +wxString::wxString(const wchar_t *pwz, const wxMBConv& conv, size_t nLength) { - // if nLength != npos, then we have to make a NULL-terminated copy - // of first nLength chars of psz first because the input buffer to WC2MB - // must always be NULL-terminated: - wxWCharBuffer inBuf((const wchar_t *)NULL); - if (nLength != npos) - { - wxASSERT( pwz != NULL ); - wxWCharBuffer tmp(nLength); - memcpy(tmp.data(), pwz, nLength * sizeof(wchar_t)); - tmp.data()[nLength] = '\0'; - inBuf = tmp; - pwz = inBuf.data(); - } - - // first get the size of the buffer we need - size_t nLen; - if ( pwz ) - { - // calculate the needed size ourselves or use the provided one - if (nLength == npos) - nLen = wxWcslen(pwz); - else - nLen = nLength; - } - else - { - // nothing to convert - nLen = 0; - } - // anything to do? - if ( (nLen != 0) && (nLen != (size_t)-1) ) + if ( pwz && nLength != 0 ) { - //Convert string - size_t nRealSize; - wxCharBuffer theBuffer = conv.cWC2MB(pwz, nLen, &nRealSize); + if ( nLength == npos ) + { + nLength = wxNO_LEN; + } + + size_t nLenMB; + wxCharBuffer buf = conv.cWC2MB(pwz, nLength, &nLenMB); - //Copy - if (nRealSize) - assign( theBuffer.data() , nRealSize - 1 ); + if ( nLenMB ) + assign(buf, nLenMB); } } //Converts this string to a wide character string if unicode //mode is not enabled and wxUSE_WCHAR_T is enabled -const wxWCharBuffer wxString::wc_str(wxMBConv& conv) const +const wxWCharBuffer wxString::wc_str(const wxMBConv& conv) const { - size_t dwOutSize; - return conv.cMB2WC(c_str(), length(), &dwOutSize); + return conv.cMB2WC(c_str(), length() + 1 /* size, not length */, NULL); } #endif // wxUSE_WCHAR_T @@ -1455,6 +1394,27 @@ bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const return true; } + +// check that the string ends with suffix and return the rest of it in the +// provided pointer if it is not NULL, otherwise return false +bool wxString::EndsWith(const wxChar *suffix, wxString *rest) const +{ + wxASSERT_MSG( suffix, _T("invalid parameter in wxString::EndssWith") ); + + int start = length() - wxStrlen(suffix); + if ( start < 0 || wxStrcmp(c_str() + start, suffix) != 0 ) + return false; + + if ( rest ) + { + // put the rest of the string into provided pointer + rest->assign(*this, 0, start); + } + + return true; +} + + // extract nCount last (rightmost) characters wxString wxString::Right(size_t nCount) const { @@ -1817,7 +1777,7 @@ int wxString::PrintfV(const wxChar* pszFormat, va_list argptr) for ( ;; ) { wxStringBuffer tmp(*this, size + 1); - wxChar* buf = tmp; + wxChar *buf = tmp; if ( !buf ) { @@ -1840,14 +1800,20 @@ int wxString::PrintfV(const wxChar* pszFormat, va_list argptr) // 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 && len <= size ) + 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 ) + { + size = len; + } + else // ok, there was enough space { - // ok, there was enough space break; } - - // still not enough, double it again - size *= 2; } // we could have overshot