X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b040e242e708939264a00c742045e831d7fd8daf..395a670159b7751da633f8be9e5b4aff2ad55942:/src/common/strconv.cpp diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp index acc3f6481a..dd806d2c1c 100644 --- a/src/common/strconv.cpp +++ b/src/common/strconv.cpp @@ -5,8 +5,9 @@ // Modified by: // Created: 29/01/98 // RCS-ID: $Id$ -// Copyright: (c) 1999 Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik -// Licence: wxWindows license +// Copyright: (c) 1999 Ove Kaaven, Robert Roebling, Vaclav Slavik +// (c) 2000-2003 Vadim Zeitlin +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,7 +18,7 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "strconv.h" #endif @@ -28,55 +29,53 @@ #pragma hdrstop #endif +#ifndef WX_PRECOMP + #include "wx/intl.h" + #include "wx/log.h" +#endif // WX_PRECOMP + +#include "wx/strconv.h" + +#if wxUSE_WCHAR_T + #ifdef __WXMSW__ - #include "wx/msw/private.h" + #include "wx/msw/private.h" #endif +#ifndef __WXWINCE__ #include +#endif + #include #include #include - -#include "wx/debug.h" -#include "wx/strconv.h" -#include "wx/intl.h" -#include "wx/log.h" +#if defined(__WIN32__) && !defined(__WXMICROWIN__) + #define wxHAVE_WIN32_MB2WC +#endif // __WIN32__ but !__WXMICROWIN__ // ---------------------------------------------------------------------------- -// globals +// headers // ---------------------------------------------------------------------------- -WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc; - - -// ============================================================================ -// implementation -// ============================================================================ - -#if wxUSE_WCHAR_T - #ifdef __SALFORDC__ - #include + #include #endif #ifdef HAVE_ICONV - #include + #include #endif -#ifdef __WXMSW__ - #include -#endif +#include "wx/encconv.h" +#include "wx/fontmap.h" + +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- #define BSWAP_UCS4(str, len) { unsigned _c; for (_c=0; _c=0x110000) @@ -117,14 +123,14 @@ static size_t encode_utf16(wxUint32 input, wchar_t *output) { if (output) { - *output++ = (input >> 10)+0xd7c0; - *output++ = (input&0x3ff)+0xdc00; + *output++ = (wxUint16) ((input >> 10)+0xd7c0); + *output = (wxUint16) ((input&0x3ff)+0xdc00); } return 2; } } -static size_t decode_utf16(const wchar_t* input, wxUint32& output) +static size_t decode_utf16(const wxUint16* input, wxUint32& output) { if ((*input<0xd800) || (*input>0xdfff)) { @@ -143,119 +149,74 @@ static size_t decode_utf16(const wchar_t* input, wxUint32& output) } } -#endif // WC_UTF16 // ---------------------------------------------------------------------------- // wxMBConv // ---------------------------------------------------------------------------- -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 +wxMBConv::~wxMBConv() { - return wxWC2MB(buf, psz, n); + // nothing to do here } const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const { - if (psz) + if ( psz ) { - size_t nLen = MB2WC((wchar_t *) NULL, psz, 0); - if (nLen == (size_t)-1) - return wxWCharBuffer((wchar_t *) NULL); - wxWCharBuffer buf(nLen); - MB2WC((wchar_t *)(const wchar_t *) buf, psz, nLen); - return buf; + // calculate the length of the buffer needed first + size_t nLen = MB2WC(NULL, psz, 0); + if ( nLen != (size_t)-1 ) + { + // now do the actual conversion + wxWCharBuffer buf(nLen); + MB2WC(buf.data(), psz, nLen + 1); // with the trailing NUL + + return buf; + } } - else - return wxWCharBuffer((wchar_t *) NULL); + + wxWCharBuffer buf((wchar_t *)NULL); + + return buf; } -const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *psz) const +const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const { - if (psz) + if ( pwz ) { - size_t nLen = WC2MB((char *) NULL, psz, 0); - if (nLen == (size_t)-1) - return wxCharBuffer((char *) NULL); - wxCharBuffer buf(nLen); - WC2MB((char *)(const char *) buf, psz, nLen); - return buf; - } - else - return wxCharBuffer((char *) NULL); -} - -// ---------------------------------------------------------------------------- -// standard file conversion -// ---------------------------------------------------------------------------- + size_t nLen = WC2MB(NULL, pwz, 0); + if ( nLen != (size_t)-1 ) + { + wxCharBuffer buf(nLen+3); // space for a wxUint32 trailing zero + WC2MB(buf.data(), pwz, nLen + 4); -WXDLLEXPORT_DATA(wxMBConvFile) wxConvFile; + return buf; + } + } -// 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); -} + wxCharBuffer buf((char *)NULL); -size_t wxMBConvFile::WC2MB(char *buf, const wchar_t *psz, size_t n) const -{ - return wxWC2MB(buf, psz, n); + return buf; } // ---------------------------------------------------------------------------- -// standard gdk conversion +// wxMBConvLibc // ---------------------------------------------------------------------------- -#ifdef __WXGTK12__ - -WXDLLEXPORT_DATA(wxMBConvGdk) wxConvGdk; - -#include - -size_t wxMBConvGdk::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t wxMBConvLibc::MB2WC(wchar_t *buf, const char *psz, size_t n) const { - 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; - } + return wxMB2WC(buf, psz, n); } -size_t wxMBConvGdk::WC2MB(char *buf, const wchar_t *psz, size_t n) const +size_t wxMBConvLibc::WC2MB(char *buf, const wchar_t *psz, size_t n) const { - 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; + return wxWC2MB(buf, psz, n); } -#endif // GTK > 1.0 - // ---------------------------------------------------------------------------- // UTF-7 // ---------------------------------------------------------------------------- -WXDLLEXPORT_DATA(wxMBConvUTF7) wxConvUTF7; - #if 0 static char utf7_setD[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz" @@ -285,8 +246,6 @@ size_t wxMBConvUTF7::WC2MB(char * WXUNUSED(buf), // UTF-8 // ---------------------------------------------------------------------------- -WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8; - static wxUint32 utf8_max[]= { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff }; @@ -335,17 +294,18 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const return (size_t)-1; } #ifdef WC_UTF16 - size_t pa = encode_utf16(res, buf); + // cast is ok because wchar_t == wxUuint16 if WC_UTF16 + size_t pa = encode_utf16(res, (wxUint16 *)buf); if (pa == (size_t)-1) return (size_t)-1; if (buf) buf += pa; len += pa; -#else +#else // !WC_UTF16 if (buf) *buf++ = res; len++; -#endif +#endif // WC_UTF16/!WC_UTF16 } } } @@ -362,7 +322,8 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const { wxUint32 cc; #ifdef WC_UTF16 - size_t pa = decode_utf16(psz, cc); + // cast is ok for WC_UTF16 + size_t pa = decode_utf16((const wxUint16 *)psz, cc); psz += (pa == (size_t)-1) ? 1 : pa; #else cc=(*psz++) & 0x7fffffff; @@ -373,7 +334,7 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const { // plain ASCII char if (buf) - *buf++ = cc; + *buf++ = (char) cc; len++; } @@ -382,167 +343,484 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const len += cnt + 1; if (buf) { - *buf++ = (-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt)); + *buf++ = (char) ((-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt))); while (cnt--) - *buf++ = 0x80 | ((cc >> (cnt * 6)) & 0x3f); + *buf++ = (char) (0x80 | ((cc >> (cnt * 6)) & 0x3f)); } } } if (buf && (len wxConvUTF8) -// - move wxEncodingConverter meat in here +#ifdef WC_UTF16 -#if defined(__WIN32__) && !defined(__WXMICROWIN__) +// copy 16bit MB to 16bit String +size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const +{ + size_t len=0; + + while (*(wxUint16*)psz && (!buf || len < n)) + { + if (buf) + *buf++ = *(wxUint16*)psz; + len++; -#if wxUSE_GUI + psz += sizeof(wxUint16); + } + if (buf && lenCharsetToEncoding(name, FALSE); - if ( enc == wxFONTENCODING_SYSTEM ) - return -1; + while (*psz && (!buf || len < n)) + { + if (buf) + { + *buf++ = ((char*)psz)[1]; + *buf++ = ((char*)psz)[0]; + } + len += sizeof(wxUint16); + psz++; + } + if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0; - // the use the helper function - return wxEncodingToCodepage(enc); + return len; } -#endif // wxUSE_FONTMAP -#endif // wxUSE_GUI +#else // WC_UTF16 -// include old wxCharsetToCodepage() by OK if needed -#if !wxUSE_GUI || !wxUSE_FONTMAP -#include "wx/msw/registry.h" +// copy 16bit MB to 32bit String +size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const +{ + size_t len=0; + + while (*(wxUint16*)psz && (!buf || len < n)) + { + wxUint32 cc; + size_t pa=decode_utf16((wxUint16*)psz, cc); + if (pa == (size_t)-1) + return pa; + + if (buf) + *buf++ = cc; + len++; + psz += pa * sizeof(wxUint16); + } + if (buf && len 1) + { + *(wxUint16*)buf = cc[1]; + buf += sizeof(wxUint16); + } + } + + len += pa*sizeof(wxUint16); + psz++; + } + if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0; - wxString cn(name); - do { - wxString path(wxT("MIME\\Database\\Charset\\")); - path += cn; - wxRegKey key(wxRegKey::HKCR, path); + return len; +} + + +// swap 16bit MB to 32bit String +size_t wxMBConvUTF16swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const +{ + size_t len=0; + + while (*(wxUint16*)psz && (!buf || len < n)) + { + wxUint32 cc; + char tmp[4]; + tmp[0]=psz[1]; tmp[1]=psz[0]; + tmp[2]=psz[3]; tmp[3]=psz[2]; - if (!key.Exists()) break; + size_t pa=decode_utf16((wxUint16*)tmp, cc); + if (pa == (size_t)-1) + return pa; - // two cases: either there's an AliasForCharset string, - // or there are Codepage and InternetEncoding dwords. - // The InternetEncoding gives us the actual encoding, - // the Codepage just says which Windows character set to - // use when displaying the data. - if (key.HasValue(wxT("InternetEncoding")) && - key.QueryValue(wxT("InternetEncoding"), &CP)) break; + if (buf) + *buf++ = cc; - // no encoding, see if it's an alias - if (!key.HasValue(wxT("AliasForCharset")) || - !key.QueryValue(wxT("AliasForCharset"), cn)) break; - } while (1); + len++; + psz += pa * sizeof(wxUint16); + } + if (buf && len 1) + { + *buf++ = ((char*)cc)[3]; + *buf++ = ((char*)cc)[2]; + } + } + + len += pa*sizeof(wxUint16); + psz++; + } + if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0; + + return len; +} + +#endif // WC_UTF16 -// ============================================================================ -// wxCharacterSet and derived classes -// ============================================================================ // ---------------------------------------------------------------------------- -// wxCharacterSet is the ABC for the classes below +// UTF-32 // ---------------------------------------------------------------------------- -class wxCharacterSet +#ifdef WORDS_BIGENDIAN +#define wxMBConvUTF32straight wxMBConvUTF32BE +#define wxMBConvUTF32swap wxMBConvUTF32LE +#else +#define wxMBConvUTF32swap wxMBConvUTF32BE +#define wxMBConvUTF32straight wxMBConvUTF32LE +#endif + + +WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32LE) wxConvUTF32LE; +WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32BE) wxConvUTF32BE; + + +#ifdef WC_UTF16 + +// copy 32bit MB to 16bit String +size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const { -public: - wxCharacterSet(const wxChar*name) - : cname(name) {} - virtual ~wxCharacterSet() - {} - virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) - { return (size_t)-1; } - virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) - { return (size_t)-1; } - virtual bool usable() - { return FALSE; } -public: - const wxChar*cname; -}; + size_t len=0; -// ---------------------------------------------------------------------------- -// ID_CharSet: implementation of wxCharacterSet using an existing wxMBConv -// ---------------------------------------------------------------------------- + while (*(wxUint32*)psz && (!buf || len < n)) + { + wxUint16 cc[2]; + + size_t pa=encode_utf16(*(wxUint32*)psz, cc); + if (pa == (size_t)-1) + return pa; + + if (buf) + { + *buf++ = cc[0]; + if (pa > 1) + *buf++ = cc[1]; + } + len += pa; + psz += sizeof(wxUint32); + } + if (buf && lenMB2WC(buf,psz,n) : (size_t)-1; } + while (*psz && (!buf || len < n)) + { + wxUint32 cc; - size_t WC2MB(char *buf, const wchar_t *psz, size_t n) - { return work ? work->WC2MB(buf,psz,n) : (size_t)-1; } + // cast is ok for WC_UTF16 + size_t pa = decode_utf16((const wxUint16 *)psz, cc); + if (pa == (size_t)-1) + return pa; - bool usable() - { return work!=NULL; } -public: - wxMBConv*work; -}; + if (buf) + { + *(wxUint32*)buf = cc; + buf += sizeof(wxUint32); + } + len += sizeof(wxUint32); + psz += pa; + } + + if (buf && len<=n-sizeof(wxUint32)) + *(wxUint32*)buf=0; + + return len; +} + + + +// swap 32bit MB to 16bit String +size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const +{ + size_t len=0; + + while (*(wxUint32*)psz && (!buf || len < n)) + { + char tmp[4]; + tmp[0] = psz[3]; tmp[1] = psz[2]; + tmp[2] = psz[1]; tmp[3] = psz[0]; + + + wxUint16 cc[2]; + + size_t pa=encode_utf16(*(wxUint32*)tmp, cc); + if (pa == (size_t)-1) + return pa; + + if (buf) + { + *buf++ = cc[0]; + if (pa > 1) + *buf++ = cc[1]; + } + len += pa; + psz += sizeof(wxUint32); + } + + if (buf && len 0x530) - size_t inbuf = std::wcslen(psz) * SIZEOF_WCHAR_T; -#else - size_t inbuf = ::wcslen(psz) * SIZEOF_WCHAR_T; -#endif + size_t inbuf = wxWcslen(psz) * SIZEOF_WCHAR_T; size_t outbuf = n; size_t res, cres; @@ -774,6 +1058,12 @@ size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n) cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); res = n-outbuf; + + // NB: iconv was given only wcslen(psz) characters on input, and so + // it couldn't convert the trailing zero. Let's do it ourselves + // if there's some room left for it in the output buffer. + if (res < n) + buf[0] = 0; } else { @@ -807,45 +1097,80 @@ size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n) #endif // HAVE_ICONV + // ============================================================================ // Win32 conversion classes // ============================================================================ -#if defined(__WIN32__) && !defined(__WXMICROWIN__) -class CP_CharSet : public wxCharacterSet +#ifdef wxHAVE_WIN32_MB2WC + +// from utils.cpp +extern WXDLLIMPEXP_BASE long wxCharsetToCodepage(const wxChar *charset); +extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding); + +class wxMBConv_win32 : public wxMBConv { public: - CP_CharSet(const wxChar* name) - : wxCharacterSet(name) - { - m_CodePage = wxCharsetToCodepage(name); - } + wxMBConv_win32() + { + m_CodePage = CP_ACP; + } + + wxMBConv_win32(const wxChar* name) + { + m_CodePage = wxCharsetToCodepage(name); + } + + wxMBConv_win32(wxFontEncoding encoding) + { + m_CodePage = wxEncodingToCodepage(encoding); + } - size_t MB2WC(wchar_t *buf, const char *psz, size_t n) + size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const { - size_t len = - MultiByteToWideChar(m_CodePage, 0, psz, -1, buf, buf ? n : 0); - //VS: returns # of written chars for buf!=NULL and *size* - // needed buffer for buf==NULL - return len ? (buf ? len : len-1) : (size_t)-1; + const size_t len = ::MultiByteToWideChar + ( + m_CodePage, // code page + 0, // flags (none) + psz, // input string + -1, // its length (NUL-terminated) + buf, // output string + buf ? n : 0 // size of output buffer + ); + + // note that it returns count of written chars for buf != NULL and size + // of the needed buffer for buf == NULL so in either case the length of + // the string (which never includes the terminating NUL) is one less + return len ? len - 1 : (size_t)-1; } - size_t WC2MB(char *buf, const wchar_t *psz, size_t n) + size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const { - size_t len = WideCharToMultiByte(m_CodePage, 0, psz, -1, buf, - buf ? n : 0, NULL, NULL); - //VS: returns # of written chars for buf!=NULL and *size* - // needed buffer for buf==NULL - return len ? (buf ? len : len-1) : (size_t)-1; + const size_t len = ::WideCharToMultiByte + ( + m_CodePage, // code page + 0, // flags (none) + psz, // input string + -1, // it is (wide) NUL-terminated + buf, // output buffer + buf ? n : 0, // and its size + NULL, // default "replacement" char + NULL // [out] was it used? + ); + + // see the comment above for the reason of "len - 1" + return len ? len - 1 : (size_t)-1; } - bool usable() + bool IsOk() const { return m_CodePage != -1; } public: long m_CodePage; }; -#endif // __WIN32__ + +#endif // wxHAVE_WIN32_MB2WC + // ============================================================================ // wxEncodingConverter based conversion classes @@ -853,21 +1178,36 @@ public: #if wxUSE_FONTMAP -class EC_CharSet : public wxCharacterSet +class wxMBConv_wxwin : public wxMBConv { +private: + void Init() + { + m_ok = m2w.Init(m_enc, wxFONTENCODING_UNICODE) && + w2m.Init(wxFONTENCODING_UNICODE, m_enc); + } + public: // temporarily just use wxEncodingConverter stuff, // so that it works while a better implementation is built - EC_CharSet(const wxChar* name) : wxCharacterSet(name), - enc(wxFONTENCODING_SYSTEM) + wxMBConv_wxwin(const wxChar* name) { if (name) - enc = wxTheFontMapper->CharsetToEncoding(name, FALSE); - m2w.Init(enc, wxFONTENCODING_UNICODE); - w2m.Init(wxFONTENCODING_UNICODE, enc); + m_enc = wxFontMapper::Get()->CharsetToEncoding(name, false); + else + m_enc = wxFONTENCODING_SYSTEM; + + Init(); } - size_t MB2WC(wchar_t *buf, const char *psz, size_t n) + wxMBConv_wxwin(wxFontEncoding enc) + { + m_enc = enc; + + Init(); + } + + size_t MB2WC(wchar_t *buf, const char *psz, size_t WXUNUSED(n)) const { size_t inbuf = strlen(psz); if (buf) @@ -875,97 +1215,97 @@ public: return inbuf; } - size_t WC2MB(char *buf, const wchar_t *psz, size_t n) + size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n)) const { -#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \ - || ( defined(__MWERKS__) && defined(__WXMSW__) ) - size_t inbuf = std::wcslen(psz); -#else - size_t inbuf = ::wcslen(psz); -#endif + const size_t inbuf = wxWcslen(psz); if (buf) w2m.Convert(psz,buf); return inbuf; } - bool usable() - { return (enc!=wxFONTENCODING_SYSTEM) && (enc!=wxFONTENCODING_DEFAULT); } + bool IsOk() const { return m_ok; } public: - wxFontEncoding enc; + wxFontEncoding m_enc; wxEncodingConverter m2w, w2m; + + // were we initialized successfully? + bool m_ok; + + DECLARE_NO_COPY_CLASS(wxMBConv_wxwin) }; #endif // wxUSE_FONTMAP -// ---------------------------------------------------------------------------- -// the function creating the wxCharacterSet for the specified charset on the -// current system, trying all possibilities -// ---------------------------------------------------------------------------- +// ============================================================================ +// wxCSConv implementation +// ============================================================================ -static wxCharacterSet *wxGetCharacterSet(const wxChar *name) +void wxCSConv::Init() { - wxCharacterSet *cset = NULL; - if (name) + m_name = NULL; + m_convReal = NULL; + m_deferred = true; +} + +wxCSConv::wxCSConv(const wxChar *charset) +{ + Init(); + + if ( charset ) { - if (wxStricmp(name, wxT("UTF8")) == 0 || wxStricmp(name, wxT("UTF-8")) == 0) - { - cset = new ID_CharSet(name, &wxConvUTF8); - } - else - { -#ifdef HAVE_ICONV - cset = new IC_CharSet(name); // may not take NULL -#endif - } + SetName(charset); } - if (cset && cset->usable()) - return cset; + m_encoding = wxFONTENCODING_SYSTEM; +} - if (cset) +wxCSConv::wxCSConv(wxFontEncoding encoding) +{ + if ( encoding == wxFONTENCODING_MAX || encoding == wxFONTENCODING_DEFAULT ) { - delete cset; - cset = NULL; - } + wxFAIL_MSG( _T("invalid encoding value in wxCSConv ctor") ); -#if defined(__WIN32__) && !defined(__WXMICROWIN__) - cset = new CP_CharSet(name); // may take NULL - if (cset->usable()) - return cset; + encoding = wxFONTENCODING_SYSTEM; + } - delete cset; -#endif // __WIN32__ + Init(); -#if wxUSE_FONTMAP - cset = new EC_CharSet(name); - if (cset->usable()) - return cset; -#endif // wxUSE_FONTMAP + m_encoding = encoding; +} - delete cset; - wxLogError(_("Unknown encoding '%s'!"), name); - return NULL; +wxCSConv::~wxCSConv() +{ + Clear(); } -// ============================================================================ -// wxCSConv implementation -// ============================================================================ +wxCSConv::wxCSConv(const wxCSConv& conv) + : wxMBConv() +{ + Init(); -wxCSConv::wxCSConv(const wxChar *charset) + SetName(conv.m_name); + m_encoding = conv.m_encoding; +} + +wxCSConv& wxCSConv::operator=(const wxCSConv& conv) { - m_name = (wxChar *)NULL; - m_cset = (wxCharacterSet *) NULL; - m_deferred = TRUE; + Clear(); - SetName(charset); + SetName(conv.m_name); + m_encoding = conv.m_encoding; + + return *this; } -wxCSConv::~wxCSConv() +void wxCSConv::Clear() { free(m_name); - delete m_cset; + delete m_convReal; + + m_name = NULL; + m_convReal = NULL; } void wxCSConv::SetName(const wxChar *charset) @@ -973,33 +1313,162 @@ void wxCSConv::SetName(const wxChar *charset) if (charset) { m_name = wxStrdup(charset); - m_deferred = TRUE; + m_deferred = true; + } +} + +wxMBConv *wxCSConv::DoCreate() const +{ + // check for the special case of ASCII or ISO8859-1 charset: as we have + // special knowledge of it anyhow, we don't need to create a special + // conversion object + if ( m_encoding == wxFONTENCODING_ISO8859_1 ) + { + // don't convert at all + return NULL; + } + + // we trust OS to do conversion better than we can so try external + // conversion methods first + // + // the full order is: + // 1. OS conversion (iconv() under Unix or Win32 API) + // 2. hard coded conversions for UTF + // 3. wxEncodingConverter as fall back + + // step (1) +#ifdef HAVE_ICONV +#if !wxUSE_FONTMAP + if ( m_name ) +#endif // !wxUSE_FONTMAP + { + wxString name(m_name); + +#if wxUSE_FONTMAP + if ( name.empty() ) + name = wxFontMapper::Get()->GetEncodingName(m_encoding); +#endif // wxUSE_FONTMAP + + wxMBConv_iconv *conv = new wxMBConv_iconv(name); + if ( conv->IsOk() ) + return conv; + + delete conv; + } +#endif // HAVE_ICONV + +#ifdef wxHAVE_WIN32_MB2WC + { + wxMBConv_win32 *conv = m_name ? new wxMBConv_win32(m_name) + : new wxMBConv_win32(m_encoding); + if ( conv->IsOk() ) + return conv; + + delete conv; + } +#endif // wxHAVE_WIN32_MB2WC + + // step (2) + wxFontEncoding enc = m_encoding; +#if wxUSE_FONTMAP + if ( enc == wxFONTENCODING_SYSTEM && m_name ) + { + // use "false" to suppress interactive dialogs -- we can be called from + // anywhere and popping up a dialog from here is the last thing we want to + // do + enc = wxFontMapper::Get()->CharsetToEncoding(m_name, false); + } +#endif // wxUSE_FONTMAP + + switch ( enc ) + { + case wxFONTENCODING_UTF7: + return new wxMBConvUTF7; + + case wxFONTENCODING_UTF8: + return new wxMBConvUTF8; + + case wxFONTENCODING_UTF16BE: + return new wxMBConvUTF16BE; + + case wxFONTENCODING_UTF16LE: + return new wxMBConvUTF16LE; + + case wxFONTENCODING_UTF32BE: + return new wxMBConvUTF32BE; + + case wxFONTENCODING_UTF32LE: + return new wxMBConvUTF32LE; + + default: + // nothing to do but put here to suppress gcc warnings + ; + } + + // step (3) +#if wxUSE_FONTMAP + { + wxMBConv_wxwin *conv = m_name ? new wxMBConv_wxwin(m_name) + : new wxMBConv_wxwin(m_encoding); + if ( conv->IsOk() ) + return conv; + + delete conv; + } +#endif // wxUSE_FONTMAP + + // NB: This is a hack to prevent deadlock. What could otherwise happen + // in Unicode build: wxConvLocal creation ends up being here + // because of some failure and logs the error. But wxLog will try to + // attach timestamp, for which it will need wxConvLocal (to convert + // time to char* and then wchar_t*), but that fails, tries to log + // error, but wxLog has a (already locked) critical section that + // guards static buffer. + static bool alreadyLoggingError = false; + if (!alreadyLoggingError) + { + alreadyLoggingError = true; + wxLogError(_("Cannot convert from the charset '%s'!"), + m_name ? m_name + : +#if wxUSE_FONTMAP + wxFontMapper::GetEncodingDescription(m_encoding).c_str() +#else // !wxUSE_FONTMAP + wxString::Format(_("encoding %s"), m_encoding).c_str() +#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP + ); + alreadyLoggingError = false; } + + return NULL; } -void wxCSConv::LoadNow() +void wxCSConv::CreateConvIfNeeded() const { - if (m_deferred) + if ( m_deferred ) { - if ( !m_name ) + wxCSConv *self = (wxCSConv *)this; // const_cast + +#if wxUSE_INTL + // if we don't have neither the name nor the encoding, use the default + // encoding for this system + if ( !m_name && m_encoding == wxFONTENCODING_SYSTEM ) { - wxString name = wxLocale::GetSystemEncodingName(); - if ( !name.empty() ) - SetName(name); + self->m_name = wxStrdup(wxLocale::GetSystemEncodingName()); } +#endif // wxUSE_INTL - // wxGetCharacterSet() complains about NULL name - m_cset = m_name ? wxGetCharacterSet(m_name) : NULL; - m_deferred = FALSE; + self->m_convReal = DoCreate(); + self->m_deferred = false; } } size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const { - ((wxCSConv *)this)->LoadNow(); // discard constness + CreateConvIfNeeded(); - if (m_cset) - return m_cset->MB2WC(buf, psz, n); + if (m_convReal) + return m_convReal->MB2WC(buf, psz, n); // latin-1 (direct) size_t len = strlen(psz); @@ -1015,35 +1484,65 @@ size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const { - ((wxCSConv *)this)->LoadNow(); // discard constness + CreateConvIfNeeded(); - if (m_cset) - return m_cset->WC2MB(buf, psz, n); + if (m_convReal) + return m_convReal->WC2MB(buf, psz, n); // latin-1 (direct) -#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \ - || ( defined(__MWERKS__) && defined(__WXMSW__) ) - size_t len=std::wcslen(psz); -#else - size_t len=::wcslen(psz); -#endif + const size_t len = wxWcslen(psz); if (buf) { for (size_t c = 0; c <= len; c++) - buf[c] = (psz[c] > 0xff) ? '?' : psz[c]; + { + if (psz[c] > 0xFF) + return (size_t)-1; + buf[c] = psz[c]; + } + } + else + { + for (size_t c = 0; c <= len; c++) + { + if (psz[c] > 0xFF) + return (size_t)-1; + } } return len; } -#else // !wxUSE_WCHAR_T - // ---------------------------------------------------------------------------- -// stand-ins in absence of wchar_t +// globals // ---------------------------------------------------------------------------- -WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile; +#ifdef __WINDOWS__ + static wxMBConv_win32 wxConvLibcObj; +#else + static wxMBConvLibc wxConvLibcObj; +#endif + +static wxCSConv wxConvLocalObj(wxFONTENCODING_SYSTEM); +static wxCSConv wxConvISO8859_1Obj(wxFONTENCODING_ISO8859_1); +static wxMBConvUTF7 wxConvUTF7Obj; +static wxMBConvUTF8 wxConvUTF8Obj; + + +WXDLLIMPEXP_DATA_BASE(wxMBConv&) wxConvLibc = wxConvLibcObj; +WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal = wxConvLocalObj; +WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1 = wxConvISO8859_1Obj; +WXDLLIMPEXP_DATA_BASE(wxMBConvUTF7&) wxConvUTF7 = wxConvUTF7Obj; +WXDLLIMPEXP_DATA_BASE(wxMBConvUTF8&) wxConvUTF8 = wxConvUTF8Obj; +WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = &wxConvLibcObj; + +#else // !wxUSE_WCHAR_T + +// stand-ins in absence of wchar_t +WXDLLIMPEXP_DATA_BASE(wxMBConv) wxConvLibc, + wxConvISO8859_1, + wxConvLocal, + wxConvUTF8; -#endif // wxUSE_WCHAR_T +#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T