- iconv_t m2w, w2m;
- IC_CharSet(const wxChar*name) : wxCharacterSet(name), m2w((iconv_t)-1), w2m((iconv_t)-1) {}
- ~IC_CharSet() {
- if (m2w!=(iconv_t)-1) iconv_close(m2w);
- if (w2m!=(iconv_t)-1) iconv_close(w2m);
- }
- void LoadM2W() { if (m2w==(iconv_t)-1) m2w=iconv_open(WC_NAME,wxConvLibc.cWX2MB(cname)); }
- void LoadW2M() { if (w2m==(iconv_t)-1) w2m=iconv_open(wxConvLibc.cWX2MB(cname),WC_NAME); }
- size_t MB2WC(wchar_t*buf, const char*psz, size_t n) {
- LoadM2W();
- size_t inbuf = strlen(psz);
- size_t outbuf = n*SIZEOF_WCHAR_T;
- size_t res, cres;
- fprintf(stderr,"IC Convert to WC using %s\n",(const char*)wxConvLibc.cWX2MB(cname));
- if (buf) {
- // have destination buffer, convert there
- cres = iconv(m2w,&psz,&inbuf,(char**)&buf,&outbuf);
- res = n-(outbuf/SIZEOF_WCHAR_T);
- // convert to native endianness
- WC_BSWAP(buf, res)
- } else {
- // no destination buffer... convert using temp buffer
- // to calculate destination buffer requirement
- wchar_t tbuf[8];
- res = 0;
- do {
- buf = tbuf; outbuf = 8*SIZEOF_WCHAR_T;
- cres = iconv(m2w,&psz,&inbuf,(char**)&buf,&outbuf);
- res += 8-(outbuf/SIZEOF_WCHAR_T);
- } while ((cres==(size_t)-1) && (errno==E2BIG));
- }
- if (cres==(size_t)-1) return (size_t)-1;
- return res;
- }
- size_t WC2MB(char*buf, const wchar_t*psz, size_t n) {
- LoadW2M();
+ IC_CharSet(const wxChar *name)
+ : wxCharacterSet(name)
+ {
+ // check for charset that represents wchar_t:
+ if (g_wcCharset == NULL)
+ {
+ g_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));
+
+ 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));
+
+ // 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)
+ {
+ 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]);
+ }
+ }
+ else
+ {
+ g_wcCharset = NULL;
+ wxLogError(_("Don't know how to convert to/from charset '%s'."), name);
+ }
+ }
+ wxLogTrace(wxT("strconv"), wxT("wchar_t charset is '%s', needs swap: %i"), g_wcCharset, g_wcNeedsSwap);
+ }
+ else
+ m2w = iconv_open(g_wcCharset, wxConvLibc.cWX2MB(name));
+
+ w2m = iconv_open(wxConvLibc.cWX2MB(name), g_wcCharset);
+ }
+
+ ~IC_CharSet()
+ {
+ if ( m2w != (iconv_t)-1 )
+ iconv_close(m2w);
+ if ( w2m != (iconv_t)-1 )
+ iconv_close(w2m);
+ }
+
+ size_t 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
+#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);
+
+ 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));
+ }
+
+ 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 WC2MB(char *buf, const wchar_t *psz, size_t n)
+ {
projects / wxWidgets.git / blobdiff