#endif // Win32
+// ============================================================================
+// wxCharacterSet and derived classes
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxCharacterSet is the ABC for the classes below
+// ----------------------------------------------------------------------------
+
class wxCharacterSet
{
public:
const wxChar*cname;
};
+// ----------------------------------------------------------------------------
+// ID_CharSet: implementation of wxCharacterSet using an existing wxMBConv
+// ----------------------------------------------------------------------------
+
class ID_CharSet : public wxCharacterSet
{
public:
- ID_CharSet(const wxChar *name,wxMBConv *cnv)
+ ID_CharSet(const wxChar *name, wxMBConv *cnv)
: wxCharacterSet(name), work(cnv) {}
size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
};
-#ifdef HAVE_ICONV_H
+// ============================================================================
+// The classes doing conversion using the iconv_xxx() functions
+// ============================================================================
-bool g_wcNeedsSwap = FALSE;
-static const char *g_wcCharset = NULL;
+#ifdef HAVE_ICONV_H
// VS: glibc 2.1.3 is broken in that iconv() conversion to/from UCS4 fails with E2BIG
// if output buffer is _exactly_ as big as needed. Such case is (unless there's
#define ICONV_FAILED(cres, bufLeft) (cres == (size_t)-1)
#endif
+#ifdef WX_ICONV_TAKES_CHAR
+ #define ICONV_CHAR_CAST(x) (char **)x
+#else
+ #define ICONV_CHAR_CAST(x) (const char **)x
+#endif
+
+// ----------------------------------------------------------------------------
+// IC_CharSet: encapsulates an iconv character set
+// ----------------------------------------------------------------------------
+
class IC_CharSet : public wxCharacterSet
{
public:
- IC_CharSet(const wxChar *name)
- : wxCharacterSet(name)
+ IC_CharSet(const wxChar *name);
+ virtual ~IC_CharSet();
+
+ virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n);
+ virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n);
+
+ bool usable() const
+ { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+
+protected:
+ // the iconv handlers used to translate from multibyte to wide char and in
+ // the other direction
+ iconv_t m2w,
+ w2m;
+
+private:
+ // the name (for iconv_open()) of a wide char charset - if none is
+ // available on this machine, it will remain NULL
+ static const char *ms_wcCharsetName;
+
+ // true if the wide char encoding we use (i.e. ms_wcCharsetName) has
+ // different endian-ness than the native one
+ static bool ms_wcNeedsSwap = FALSE;
+};
+
+const char *IC_CharSet::ms_wcCharsetName = NULL;
+
+IC_CharSet::IC_CharSet(const wxChar *name)
+ : wxCharacterSet(name)
+{
+ // check for charset that represents wchar_t:
+ if (ms_wcCharsetName == NULL)
{
- // check for charset that represents wchar_t:
- if (g_wcCharset == NULL)
- {
- g_wcNeedsSwap = FALSE;
+ ms_wcNeedsSwap = FALSE;
- // try charset with explicit bytesex info (e.g. "UCS-4LE"):
- g_wcCharset = WC_NAME_BEST;
- m2w = iconv_open(g_wcCharset, wxConvLibc.cWX2MB(name));
+ // try charset with explicit bytesex info (e.g. "UCS-4LE"):
+ ms_wcCharsetName = WC_NAME_BEST;
+ m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
+ if (m2w == (iconv_t)-1)
+ {
+ // try charset w/o bytesex info (e.g. "UCS4")
+ // and check for bytesex ourselves:
+ ms_wcCharsetName = WC_NAME;
+ m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
+
+ // last bet, try if it knows WCHAR_T pseudo-charset
if (m2w == (iconv_t)-1)
{
- // try charset w/o bytesex info (e.g. "UCS4")
- // and check for bytesex ourselves:
- g_wcCharset = WC_NAME;
- m2w = iconv_open(g_wcCharset, wxConvLibc.cWX2MB(name));
+ ms_wcCharsetName = "WCHAR_T";
+ m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
+ }
- // last bet, try if it knows WCHAR_T pseudo-charset
- if (m2w == (iconv_t)-1)
- {
- g_wcCharset = "WCHAR_T";
- m2w = iconv_open(g_wcCharset, wxConvLibc.cWX2MB(name));
- }
-
- if (m2w != (iconv_t)-1)
+ if (m2w != (iconv_t)-1)
+ {
+ char buf[2], *bufPtr;
+ wchar_t wbuf[2], *wbufPtr;
+ size_t insz, outsz;
+ size_t res;
+
+ buf[0] = 'A';
+ buf[1] = 0;
+ wbuf[0] = 0;
+ insz = 2;
+ outsz = SIZEOF_WCHAR_T * 2;
+ wbufPtr = wbuf;
+ bufPtr = buf;
+
+ res = iconv(m2w, ICONV_CHAR_CAST(&bufPtr), &insz,
+ (char**)&wbufPtr, &outsz);
+
+ if (ICONV_FAILED(res, insz))
{
- char buf[2], *bufPtr;
- wchar_t wbuf[2], *wbufPtr;
- size_t insz, outsz;
- size_t res;
-
- buf[0] = 'A';
- buf[1] = 0;
- wbuf[0] = 0;
- insz = 2;
- outsz = SIZEOF_WCHAR_T * 2;
- wbufPtr = wbuf;
- bufPtr = buf;
-
- #ifdef WX_ICONV_TAKES_CHAR
- res = iconv(m2w, (char**)&bufPtr, &insz, (char**)&wbufPtr, &outsz);
- #else
- res = iconv(m2w, (const char**)&bufPtr, &insz, (char**)&wbufPtr, &outsz);
- #endif
- if (ICONV_FAILED(res, insz))
- {
- g_wcCharset = NULL;
- wxLogLastError(wxT("iconv"));
- wxLogError(_("Convertion to charset '%s' doesn't work."), name);
- }
- else
- {
- g_wcNeedsSwap = (wbuf[0] != (wchar_t)buf[0]);
- }
+ ms_wcCharsetName = NULL;
+ wxLogLastError(wxT("iconv"));
+ wxLogError(_("Convertion to charset '%s' doesn't work."), name);
}
else
{
- g_wcCharset = NULL;
- wxLogError(_("Don't know how to convert to/from charset '%s'."), name);
+ ms_wcNeedsSwap = wbuf[0] != (wchar_t)buf[0];
}
}
- wxLogTrace(wxT("strconv"), wxT("wchar_t charset is '%s', needs swap: %i"), g_wcCharset, g_wcNeedsSwap);
+ else
+ {
+ ms_wcCharsetName = NULL;
+ wxLogError(_("Impossible to convert to/from charset '%s'."), name);
+ }
}
- else
- m2w = iconv_open(g_wcCharset, wxConvLibc.cWX2MB(name));
-
- w2m = iconv_open(wxConvLibc.cWX2MB(name), g_wcCharset);
+ wxLogTrace(wxT("strconv"), wxT("wchar_t charset is '%s', needs swap: %i"), ms_wcCharsetName, ms_wcNeedsSwap);
}
-
- ~IC_CharSet()
+ else // we already have ms_wcCharsetName
{
- if ( m2w != (iconv_t)-1 )
- iconv_close(m2w);
- if ( w2m != (iconv_t)-1 )
- iconv_close(w2m);
+ m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
}
- size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+ // NB: don't ever pass NULL to iconv_open(), it may crash!
+ if ( ms_wcCharsetName )
{
- size_t inbuf = strlen(psz);
- size_t outbuf = n * SIZEOF_WCHAR_T;
- size_t res, cres;
- // VS: Use these instead of psz, buf because iconv() modifies its arguments:
- wchar_t *bufPtr = buf;
- const char *pszPtr = psz;
+ w2m = iconv_open(wxConvLibc.cWX2MB(name), ms_wcCharsetName);
+ }
+}
- if (buf)
- {
- // have destination buffer, convert there
-#ifdef WX_ICONV_TAKES_CHAR
- cres = iconv(m2w, (char**)&pszPtr, &inbuf, (char**)&bufPtr, &outbuf);
-#else
- cres = iconv(m2w, &pszPtr, &inbuf, (char**)&bufPtr, &outbuf);
-#endif
- res = n - (outbuf / SIZEOF_WCHAR_T);
+IC_CharSet::~IC_CharSet()
+{
+ if ( m2w != (iconv_t)-1 )
+ iconv_close(m2w);
+ if ( w2m != (iconv_t)-1 )
+ iconv_close(w2m);
+}
- if (g_wcNeedsSwap)
- {
- // convert to native endianness
- WC_BSWAP(buf /* _not_ bufPtr */, res)
- }
- }
- else
- {
- // no destination buffer... convert using temp buffer
- // to calculate destination buffer requirement
- wchar_t tbuf[8];
- res = 0;
- do {
- bufPtr = tbuf; outbuf = 8*SIZEOF_WCHAR_T;
-#ifdef WX_ICONV_TAKES_CHAR
- cres = iconv( m2w, (char**)&pszPtr, &inbuf, (char**)&bufPtr, &outbuf );
-#else
- cres = iconv( m2w, &pszPtr, &inbuf, (char**)&bufPtr, &outbuf );
-#endif
- res += 8-(outbuf/SIZEOF_WCHAR_T);
- } while ((cres==(size_t)-1) && (errno==E2BIG));
- }
+size_t IC_CharSet::MB2WC(wchar_t *buf, const char *psz, size_t n)
+{
+ size_t inbuf = strlen(psz);
+ size_t outbuf = n * SIZEOF_WCHAR_T;
+ size_t res, cres;
+ // VS: Use these instead of psz, buf because iconv() modifies its arguments:
+ wchar_t *bufPtr = buf;
+ const char *pszPtr = psz;
+
+ if (buf)
+ {
+ // have destination buffer, convert there
+ cres = iconv(m2w,
+ ICONV_CHAR_CAST(&pszPtr), &inbuf,
+ (char**)&bufPtr, &outbuf);
+ res = n - (outbuf / SIZEOF_WCHAR_T);
- if (ICONV_FAILED(cres, inbuf))
+ if (ms_wcNeedsSwap)
{
- //VS: it is ok if iconv fails, hence trace only
- wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
- return (size_t)-1;
+ // convert to native endianness
+ WC_BSWAP(buf /* _not_ bufPtr */, res)
}
-
- return res;
+ }
+ else
+ {
+ // no destination buffer... convert using temp buffer
+ // to calculate destination buffer requirement
+ wchar_t tbuf[8];
+ res = 0;
+ do {
+ bufPtr = tbuf;
+ outbuf = 8*SIZEOF_WCHAR_T;
+
+ cres = iconv(m2w,
+ ICONV_CHAR_CAST(&pszPtr), &inbuf,
+ (char**)&bufPtr, &outbuf );
+
+ res += 8-(outbuf/SIZEOF_WCHAR_T);
+ } while ((cres==(size_t)-1) && (errno==E2BIG));
}
- size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+ if (ICONV_FAILED(cres, inbuf))
{
+ //VS: it is ok if iconv fails, hence trace only
+ wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
+ return (size_t)-1;
+ }
+
+ return res;
+}
+
+size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n)
+{
#if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)
- size_t inbuf = std::wcslen(psz) * SIZEOF_WCHAR_T;
+ size_t inbuf = std::wcslen(psz) * SIZEOF_WCHAR_T;
#else
- size_t inbuf = ::wcslen(psz) * SIZEOF_WCHAR_T;
+ size_t inbuf = ::wcslen(psz) * SIZEOF_WCHAR_T;
#endif
- size_t outbuf = n;
- size_t res, cres;
-
- wchar_t *tmpbuf = 0;
+ size_t outbuf = n;
+ size_t res, cres;
- if (g_wcNeedsSwap)
- {
- // need to copy to temp buffer to switch endianness
- // this absolutely doesn't rock!
- // (no, doing WC_BSWAP twice on the original buffer won't help, as it
- // could be in read-only memory, or be accessed in some other thread)
- tmpbuf=(wchar_t*)malloc((inbuf+1)*SIZEOF_WCHAR_T);
- memcpy(tmpbuf,psz,(inbuf+1)*SIZEOF_WCHAR_T);
- WC_BSWAP(tmpbuf, inbuf)
- psz=tmpbuf;
- }
+ wchar_t *tmpbuf = 0;
- if (buf)
- {
- // have destination buffer, convert there
-#ifdef WX_ICONV_TAKES_CHAR
- cres = iconv( w2m, (char**)&psz, &inbuf, &buf, &outbuf );
-#else
- cres = iconv( w2m, (const char**)&psz, &inbuf, &buf, &outbuf );
-#endif
- res = n-outbuf;
- }
- else
- {
- // no destination buffer... convert using temp buffer
- // to calculate destination buffer requirement
- char tbuf[16];
- res = 0;
- do {
- buf = tbuf; outbuf = 16;
-#ifdef WX_ICONV_TAKES_CHAR
- cres = iconv( w2m, (char**)&psz, &inbuf, &buf, &outbuf );
-#else
- cres = iconv( w2m, (const char**)&psz, &inbuf, &buf, &outbuf );
-#endif
- res += 16 - outbuf;
- } while ((cres==(size_t)-1) && (errno==E2BIG));
- }
+ if (ms_wcNeedsSwap)
+ {
+ // need to copy to temp buffer to switch endianness
+ // this absolutely doesn't rock!
+ // (no, doing WC_BSWAP twice on the original buffer won't help, as it
+ // could be in read-only memory, or be accessed in some other thread)
+ tmpbuf=(wchar_t*)malloc((inbuf+1)*SIZEOF_WCHAR_T);
+ memcpy(tmpbuf,psz,(inbuf+1)*SIZEOF_WCHAR_T);
+ WC_BSWAP(tmpbuf, inbuf)
+ psz=tmpbuf;
+ }
- if (g_wcNeedsSwap)
- {
- free(tmpbuf);
- }
+ if (buf)
+ {
+ // have destination buffer, convert there
+ cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
- if (ICONV_FAILED(cres, inbuf))
- {
- //VS: it is ok if iconv fails, hence trace only
- wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
- return (size_t)-1;
- }
+ res = n-outbuf;
+ }
+ else
+ {
+ // no destination buffer... convert using temp buffer
+ // to calculate destination buffer requirement
+ char tbuf[16];
+ res = 0;
+ do {
+ buf = tbuf; outbuf = 16;
+
+ cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
- return res;
+ res += 16 - outbuf;
+ } while ((cres==(size_t)-1) && (errno==E2BIG));
}
- bool usable()
- { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+ if (ms_wcNeedsSwap)
+ {
+ free(tmpbuf);
+ }
-protected:
- iconv_t m2w, w2m;
-};
-#endif
+ if (ICONV_FAILED(cres, inbuf))
+ {
+ //VS: it is ok if iconv fails, hence trace only
+ wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
+ return (size_t)-1;
+ }
+
+ return res;
+}
+
+#endif // HAVE_ICONV_H
+
+// ============================================================================
+// Win32 conversion classes
+// ============================================================================
#if defined(__WIN32__) && !defined(__WXMICROWIN__)
class CP_CharSet : public wxCharacterSet
};
#endif // __WIN32__
+// ============================================================================
+// wxEncodingConverter based conversion classes
+// ============================================================================
+
#if wxUSE_FONTMAP
class EC_CharSet : public wxCharacterSet
#endif // wxUSE_FONTMAP
+// ----------------------------------------------------------------------------
+// the function creating the wxCharacterSet for the specified charset on the
+// current system, trying all possibilities
+// ----------------------------------------------------------------------------
+
static wxCharacterSet *wxGetCharacterSet(const wxChar *name)
{
wxCharacterSet *cset = NULL;
return NULL;
}
+// ============================================================================
+// wxCSConv implementation
+// ============================================================================
+
wxCSConv::wxCSConv(const wxChar *charset)
{
m_name = (wxChar *)NULL;
return len;
}
+// VZ: are the classes below used at all??
+#if 0
+
#ifdef HAVE_ICONV_H
class IC_CharSetConverter
{
size_t inbuf = strlen(psz);
size_t outbuf = n;
-#ifdef WX_ICONV_TAKES_CHAR
- size_t res = iconv( cnv, (char**)&psz, &inbuf, &buf, &outbuf );
-#else
- size_t res = iconv( cnv, &psz, &inbuf, &buf, &outbuf );
-#endif
+ size_t res = iconv( cnv, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
if (res == (size_t)-1)
return (size_t)-1;
return (n - outbuf);
wxEncodingConverter cnv;
};
+#endif // 0
+
#else // !wxUSE_WCHAR_T
// ----------------------------------------------------------------------------
projects / wxWidgets.git / commitdiff
