/////////////////////////////////////////////////////////////////////////////
// Name: strconv.cpp
// Purpose: Unicode conversion classes
-// Author: Ove Kaaven, Robert Roebling, Vadim Zeitlin
+// Author: Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
-// Copyright: (c) 1999 Ove Kaaven, Robert Roebling, Vadim Zeitlin
+// Copyright: (c) 1999 Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
#ifdef __GNUG__
#pragma implementation "strconv.h"
#endif
#pragma hdrstop
#endif
+#ifdef __WXMSW__
+ #include "wx/msw/private.h"
+#endif
+
+#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
-#ifdef __SALFORDC__
- #include <clib.h>
-#endif
#include "wx/debug.h"
#include "wx/strconv.h"
+#include "wx/intl.h"
+#include "wx/log.h"
-//----------------------------------------------------------------------------
-// wxConvCurrent
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc;
-#if !wxUSE_WCHAR_T
-//----------------------------------------------------------------------------
-// stand-ins in absence of wchar_t
-//----------------------------------------------------------------------------
-WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile;
+// ============================================================================
+// implementation
+// ============================================================================
-#else
+#if wxUSE_WCHAR_T
+
+#ifdef __SALFORDC__
+ #include <clib.h>
+#endif
+
+#ifdef HAVE_ICONV_H
+ #include <iconv.h>
+#endif
+
+#ifdef __WXMSW__
+ #include <windows.h>
+#endif
+
+#define BSWAP_UCS4(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT32_SWAP_ALWAYS(str[_c]); }
+#define BSWAP_UTF16(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT16_SWAP_ALWAYS(str[_c]); }
+
+// under Unix SIZEOF_WCHAR_T is defined by configure, but under other platforms
+// it might be not defined - assume the most common value
+#ifndef SIZEOF_WCHAR_T
+ #define SIZEOF_WCHAR_T 2
+#endif // !defined(SIZEOF_WCHAR_T)
+
+#if SIZEOF_WCHAR_T == 4
+ #define WC_NAME "UCS4"
+ #define WC_BSWAP BSWAP_UCS4
+ #ifdef WORDS_BIGENDIAN
+ #define WC_NAME_BEST "UCS-4BE"
+ #else
+ #define WC_NAME_BEST "UCS-4LE"
+ #endif
+#elif SIZEOF_WCHAR_T == 2
+ #define WC_NAME "UTF16"
+ #define WC_BSWAP BSWAP_UTF16
+ #define WC_UTF16
+ #ifdef WORDS_BIGENDIAN
+ #define WC_NAME_BEST "UTF-16BE"
+ #else
+ #define WC_NAME_BEST "UTF-16LE"
+ #endif
+#else // sizeof(wchar_t) != 2 nor 4
+ // I don't know what to do about this
+ #error "Weird sizeof(wchar_t): please report your platform details to wx-users mailing list"
+#endif
+
+
+#ifdef WC_UTF16
+
+static size_t encode_utf16(wxUint32 input, wchar_t *output)
+{
+ if (input<=0xffff)
+ {
+ if (output) *output++ = input;
+ return 1;
+ }
+ else if (input>=0x110000)
+ {
+ return (size_t)-1;
+ }
+ else
+ {
+ if (output)
+ {
+ *output++ = (input >> 10)+0xd7c0;
+ *output++ = (input&0x3ff)+0xdc00;
+ }
+ return 2;
+ }
+}
-//----------------------------------------------------------------------------
+static size_t decode_utf16(const wchar_t* input, wxUint32& output)
+{
+ if ((*input<0xd800) || (*input>0xdfff))
+ {
+ output = *input;
+ return 1;
+ }
+ else if ((input[1]<0xdc00) || (input[1]>=0xdfff))
+ {
+ output = *input;
+ return (size_t)-1;
+ }
+ else
+ {
+ output = ((input[0] - 0xd7c0) << 10) + (input[1] - 0xdc00);
+ return 2;
+ }
+}
+
+#endif // WC_UTF16
+
+// ----------------------------------------------------------------------------
// wxMBConv
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
WXDLLEXPORT_DATA(wxMBConv) wxConvLibc;
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;
- }
- else
+ }
+ else
return wxWCharBuffer((wchar_t *) NULL);
}
const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *psz) const
{
- if (psz)
+ if (psz)
{
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
+ }
+ else
return wxCharBuffer((char *) NULL);
}
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// standard file conversion
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
WXDLLEXPORT_DATA(wxMBConvFile) wxConvFile;
return wxWC2MB(buf, psz, n);
}
-#ifdef __WXGTK12__
-
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// standard gdk conversion
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+
+#ifdef __WXGTK12__
WXDLLEXPORT_DATA(wxMBConvGdk) wxConvGdk;
size_t wxMBConvGdk::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;
- }
+ 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;
+ }
}
size_t wxMBConvGdk::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;
+ 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;
}
+
#endif // GTK > 1.0
// ----------------------------------------------------------------------------
return 0;
}
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// UTF-8
-//----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8;
-static unsigned long utf8_max[]={0x7f,0x7ff,0xffff,0x1fffff,0x3ffffff,0x7fffffff,0xffffffff};
+static wxUint32 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<n))) {
- unsigned char cc=*psz++, fc=cc;
- unsigned cnt;
- for (cnt=0; fc&0x80; cnt++) fc<<=1;
- if (!cnt) {
- // plain ASCII char
- if (buf) *buf++=cc;
- len++;
- } else {
- cnt--;
- if (!cnt) {
- // invalid UTF-8 sequence
- return (size_t)-1;
- } else {
- unsigned ocnt=cnt-1;
- unsigned long res=cc&(0x3f>>cnt);
- while (cnt--) {
- cc = *psz++;
- if ((cc&0xC0)!=0x80) {
- // invalid UTF-8 sequence
- return (size_t)-1;
- }
- res=(res<<6)|(cc&0x3f);
+ size_t len = 0;
+
+ while (*psz && ((!buf) || (len < n)))
+ {
+ unsigned char cc = *psz++, fc = cc;
+ unsigned cnt;
+ for (cnt = 0; fc & 0x80; cnt++)
+ fc <<= 1;
+ if (!cnt)
+ {
+ // plain ASCII char
+ if (buf)
+ *buf++ = cc;
+ len++;
}
- if (res<=utf8_max[ocnt]) {
- // illegal UTF-8 encoding
- return (size_t)-1;
+ else
+ {
+ cnt--;
+ if (!cnt)
+ {
+ // invalid UTF-8 sequence
+ return (size_t)-1;
+ }
+ else
+ {
+ unsigned ocnt = cnt - 1;
+ wxUint32 res = cc & (0x3f >> 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;
+ }
+#ifdef WC_UTF16
+ size_t pa = encode_utf16(res, buf);
+ if (pa == (size_t)-1)
+ return (size_t)-1;
+ if (buf)
+ buf += pa;
+ len += pa;
+#else
+ if (buf)
+ *buf++ = res;
+ len++;
+#endif
+ }
}
- if (buf) *buf++=res;
- len++;
- }
}
- }
- if (buf && (len<n)) *buf = 0;
- return len;
+ if (buf && (len < n))
+ *buf = 0;
+ return len;
}
size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
- size_t len = 0;
-
- while (*psz && ((!buf) || (len<n))) {
- unsigned long cc=(*psz++)&0x7fffffff;
- unsigned cnt;
- for (cnt=0; cc>utf8_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 && (len<n)) *buf = 0;
- return len;
+ size_t len = 0;
+
+ while (*psz && ((!buf) || (len < n)))
+ {
+ wxUint32 cc;
+#ifdef WC_UTF16
+ size_t pa = decode_utf16(psz, cc);
+ psz += (pa == (size_t)-1) ? 1 : pa;
+#else
+ cc=(*psz++) & 0x7fffffff;
+#endif
+ unsigned cnt;
+ for (cnt = 0; cc > utf8_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 && (len<n)) *buf = 0;
+ return len;
}
// ----------------------------------------------------------------------------
// specified character set
// ----------------------------------------------------------------------------
-#ifndef WX_PRECOMP
- #include "wx/dynarray.h"
- #include "wx/filefn.h"
- #include "wx/textfile.h"
- #include "wx/tokenzr.h"
- #include "wx/utils.h"
-#endif
+WXDLLEXPORT_DATA(wxCSConv) wxConvLocal((const wxChar *)NULL);
+
+#include "wx/encconv.h"
+#include "wx/fontmap.h"
+
+// TODO: add some tables here
+// - perhaps common encodings to common codepages (for Win32)
+// - perhaps common encodings to objects ("UTF8" -> wxConvUTF8)
+// - move wxEncodingConverter meat in here
+
+#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+
+#if wxUSE_GUI
+
+// VZ: the new version of wxCharsetToCodepage() is more politically correct
+// and should work on other Windows versions as well but the old version is
+// still needed for !wxUSE_FONTMAP || !wxUSE_GUI case
+
+extern long wxEncodingToCodepage(wxFontEncoding encoding)
+{
+ // translate encoding into the Windows CHARSET
+ wxNativeEncodingInfo natveEncInfo;
+ if ( !wxGetNativeFontEncoding(encoding, &natveEncInfo) )
+ return -1;
+
+ // translate CHARSET to code page
+ CHARSETINFO csetInfo;
+ if ( !::TranslateCharsetInfo((DWORD *)(DWORD)natveEncInfo.charset,
+ &csetInfo,
+ TCI_SRCCHARSET) )
+ {
+ wxLogLastError(_T("TranslateCharsetInfo(TCI_SRCCHARSET)"));
+
+ return -1;
+ }
+
+ return csetInfo.ciACP;
+}
+
+#if wxUSE_FONTMAP
+
+extern long wxCharsetToCodepage(const wxChar *name)
+{
+ // first get the font encoding for this charset
+ if ( !name )
+ return -1;
+
+ wxFontEncoding enc = wxTheFontMapper->CharsetToEncoding(name, FALSE);
+ if ( enc == wxFONTENCODING_SYSTEM )
+ return -1;
+
+ // the use the helper function
+ return wxEncodingToCodepage(enc);
+}
+
+#endif // wxUSE_FONTMAP
+
+#endif // wxUSE_GUI
+
+// include old wxCharsetToCodepage() by OK if needed
+#if !wxUSE_GUI || !wxUSE_FONTMAP
+
+#include "wx/msw/registry.h"
+
+// this should work if Internet Exploiter is installed
+extern long wxCharsetToCodepage(const wxChar *name)
+{
+ if (!name)
+ return GetACP();
+
+ long CP=-1;
+
+ wxString cn(name);
+ do {
+ wxString path(wxT("MIME\\Database\\Charset\\"));
+ path += cn;
+ wxRegKey key(wxRegKey::HKCR, path);
+
+ if (!key.Exists()) break;
+
+ // 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;
+
+ // no encoding, see if it's an alias
+ if (!key.HasValue(wxT("AliasForCharset")) ||
+ !key.QueryValue(wxT("AliasForCharset"), cn)) break;
+ } while (1);
+
+ return CP;
+}
+
+#endif // !wxUSE_GUI || !wxUSE_FONTMAP
+
+#endif // Win32
class wxCharacterSet
{
public:
- wxArrayString names;
- wchar_t *data;
+ 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;
};
-WX_DECLARE_OBJARRAY(wxCharacterSet, wxCSArray);
-#include "wx/arrimpl.cpp"
-WX_DEFINE_OBJARRAY(wxCSArray);
+class ID_CharSet : public wxCharacterSet
+{
+public:
+ ID_CharSet(const wxChar *name,wxMBConv *cnv)
+ : wxCharacterSet(name), work(cnv) {}
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+ { return work ? work->MB2WC(buf,psz,n) : (size_t)-1; }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+ { return work ? work->WC2MB(buf,psz,n) : (size_t)-1; }
+
+ bool usable()
+ { return work!=NULL; }
+public:
+ wxMBConv*work;
+};
+
+
+#ifdef HAVE_ICONV_H
-static wxCSArray wxCharsets;
+bool g_wcNeedsSwap = FALSE;
+static const char *g_wcCharset = NULL;
-static void wxLoadCharacterSets(void)
+// 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
+// yet another bug in glibc) the only case when iconv() returns with (size_t)-1
+// (which means error) and says there are 0 bytes left in the input buffer --
+// when _real_ error occurs, bytes-left-in-input buffer is non-zero. Hence,
+// this alternative test for iconv() failure.
+// [This bug does not appear in glibc 2.2.]
+#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 1
+#define ICONV_FAILED(cres, bufLeft) ((cres == (size_t)-1) && \
+ (errno != E2BIG || bufLeft != 0))
+#else
+#define ICONV_FAILED(cres, bufLeft) (cres == (size_t)-1)
+#endif
+
+class IC_CharSet : public wxCharacterSet
{
- static bool already_loaded = FALSE;
-
- if (already_loaded) return;
-
- already_loaded = TRUE;
-#if defined(__UNIX__) && wxUSE_TEXTFILE
- // search through files in /usr/share/i18n/charmaps
- wxString fname;
- for (fname = ::wxFindFirstFile(T("/usr/share/i18n/charmaps/*"));
- !fname.IsEmpty();
- fname = ::wxFindNextFile()) {
- wxTextFile cmap(fname);
- if (cmap.Open()) {
- wxCharacterSet *cset = new wxCharacterSet;
- wxString comchar,escchar;
- bool in_charset = FALSE;
-
- // wxFprintf(stderr,T("Loaded: %s\n"),fname.c_str());
-
- wxString line;
- for (line = cmap.GetFirstLine();
- !cmap.Eof();
- line = cmap.GetNextLine()) {
- // wxFprintf(stderr,T("line contents: %s\n"),line.c_str());
- wxStringTokenizer token(line);
- wxString cmd = token.GetNextToken();
- if (cmd == comchar) {
- if (token.GetNextToken() == T("alias"))
- cset->names.Add(token.GetNextToken());
+public:
+ 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 if (cmd == T("<code_set_name>"))
- cset->names.Add(token.GetNextToken());
- else if (cmd == T("<comment_char>"))
- comchar = token.GetNextToken();
- else if (cmd == T("<escape_char>"))
- escchar = token.GetNextToken();
- else if (cmd == T("<mb_cur_min>")) {
- delete cset;
- cset = (wxCharacterSet *) NULL;
- break; // we don't support multibyte charsets ourselves (yet)
+ 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 if (cmd == T("CHARMAP")) {
- cset->data = (wchar_t *)calloc(256, sizeof(wchar_t));
- in_charset = TRUE;
+ 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));
}
- else if (cmd == T("END")) {
- if (token.GetNextToken() == T("CHARMAP"))
- in_charset = FALSE;
+
+ 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;
}
- else if (in_charset) {
- // format: <NUL> /x00 <U0000> NULL (NUL)
- // <A> /x41 <U0041> 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("<U"))) {
- hex.MakeUpper(); uni.MakeUpper();
- int pos = ::wxHexToDec(hex.Mid(2,2));
- if (pos>=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]);
- }
- }
+
+ return res;
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+ {
+#if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)
+ size_t inbuf = std::wcslen(psz) * SIZEOF_WCHAR_T;
+#else
+ size_t inbuf = ::wcslen(psz) * SIZEOF_WCHAR_T;
+#endif
+ size_t outbuf = n;
+ size_t res, cres;
+
+ wchar_t *tmpbuf = 0;
+
+ 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;
+ }
+
+ 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 (cset) {
- cset->names.Shrink();
- wxCharsets.Add(cset);
- }
+
+ if (g_wcNeedsSwap)
+ {
+ free(tmpbuf);
+ }
+
+ 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;
}
- }
+
+ bool usable()
+ { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+
+protected:
+ iconv_t m2w, w2m;
+};
#endif
- wxCharsets.Shrink();
-}
-static wxCharacterSet *wxFindCharacterSet(const wxChar *charset)
+#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+class CP_CharSet : public wxCharacterSet
{
- if (!charset) return (wxCharacterSet *)NULL;
- wxLoadCharacterSets();
- for (size_t n=0; n<wxCharsets.GetCount(); n++)
- if (wxCharsets[n].names.Index(charset) != wxNOT_FOUND)
- return &(wxCharsets[n]);
- return (wxCharacterSet *)NULL;
-}
+public:
+ CP_CharSet(const wxChar* name)
+ : wxCharacterSet(name)
+ {
+ m_CodePage = wxCharsetToCodepage(name);
+ }
-WXDLLEXPORT_DATA(wxCSConv) wxConvLocal((const wxChar *)NULL);
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+ {
+ 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;
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+ {
+ 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;
+ }
+
+ bool usable()
+ { return m_CodePage != -1; }
+
+public:
+ long m_CodePage;
+};
+#endif // __WIN32__
+
+#if wxUSE_FONTMAP
+
+class EC_CharSet : public wxCharacterSet
+{
+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)
+ {
+ if (name)
+ enc = wxTheFontMapper->CharsetToEncoding(name, FALSE);
+ m2w.Init(enc, wxFONTENCODING_UNICODE);
+ w2m.Init(wxFONTENCODING_UNICODE, enc);
+ }
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+ {
+ size_t inbuf = strlen(psz);
+ if (buf)
+ m2w.Convert(psz,buf);
+ return inbuf;
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+ {
+#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \
+ || ( defined(__MWERKS__) && defined(__WXMSW__) )
+ size_t inbuf = std::wcslen(psz);
+#else
+ size_t inbuf = ::wcslen(psz);
+#endif
+ if (buf)
+ w2m.Convert(psz,buf);
+
+ return inbuf;
+ }
+
+ bool usable()
+ { return (enc!=wxFONTENCODING_SYSTEM) && (enc!=wxFONTENCODING_DEFAULT); }
+
+public:
+ wxFontEncoding enc;
+ wxEncodingConverter m2w, w2m;
+};
+
+#endif // wxUSE_FONTMAP
+
+static wxCharacterSet *wxGetCharacterSet(const wxChar *name)
+{
+ wxCharacterSet *cset = NULL;
+ if (name)
+ {
+ if (wxStricmp(name, wxT("UTF8")) == 0 || wxStricmp(name, wxT("UTF-8")) == 0)
+ {
+ cset = new ID_CharSet(name, &wxConvUTF8);
+ }
+ else
+ {
+#ifdef HAVE_ICONV_H
+ cset = new IC_CharSet(name); // may not take NULL
+#endif
+ }
+ }
+
+ if (cset && cset->usable())
+ return cset;
+
+ if (cset)
+ {
+ delete cset;
+ cset = NULL;
+ }
+
+#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+ cset = new CP_CharSet(name); // may take NULL
+ if (cset->usable())
+ return cset;
+
+ delete cset;
+#endif // __WIN32__
+
+#if wxUSE_FONTMAP
+ cset = new EC_CharSet(name);
+ if (cset->usable())
+ return cset;
+#endif // wxUSE_FONTMAP
+
+ delete cset;
+ wxLogError(_("Unknown encoding '%s'!"), name);
+ return NULL;
+}
wxCSConv::wxCSConv(const wxChar *charset)
{
- m_name = (wxChar *) NULL;
- m_cset = (wxCharacterSet *) NULL;
- m_deferred = TRUE;
- SetName(charset);
+ m_name = (wxChar *)NULL;
+ m_cset = (wxCharacterSet *) NULL;
+ m_deferred = TRUE;
+
+ SetName(charset);
}
wxCSConv::~wxCSConv()
{
- if (m_name) free(m_name);
+ free(m_name);
+ delete m_cset;
}
void wxCSConv::SetName(const wxChar *charset)
{
- if (charset) {
-#ifdef __UNIX__
- // first, convert the character set name to standard form
- wxString codeset;
- if (wxString(charset,3).CmpNoCase(T("ISO")) == 0) {
- // make sure it's represented in the standard form: ISO_8859-1
- codeset = T("ISO_");
- charset += 3;
- if ((*charset == T('-')) || (*charset == T('_'))) charset++;
- if (wxStrlen(charset)>4) {
- if (wxString(charset,4) == T("8859")) {
- codeset << T("8859-");
- if (*charset == T('-')) charset++;
- }
- }
+ if (charset)
+ {
+ m_name = wxStrdup(charset);
+ m_deferred = TRUE;
}
- codeset << charset;
- codeset.MakeUpper();
- m_name = wxStrdup(codeset.c_str());
- m_deferred = TRUE;
-#endif
- }
}
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
+ if (m_deferred)
+ {
+ if ( !m_name )
+ {
+ wxString name = wxLocale::GetSystemEncodingName();
+ if ( !name.empty() )
+ SetName(name);
+ }
+
+ // wxGetCharacterSet() complains about NULL name
+ m_cset = m_name ? wxGetCharacterSet(m_name) : NULL;
+ m_deferred = FALSE;
}
- m_cset = wxFindCharacterSet(m_name);
- m_deferred = FALSE;
- }
}
size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
{
- ((wxCSConv *)this)->LoadNow(); // discard constness
- if (buf) {
- if (m_cset) {
- for (size_t c=0; c<n; c++)
- buf[c] = m_cset->data[(unsigned char)(psz[c])];
- } else {
- // latin-1 (direct)
- for (size_t c=0; c<n; c++)
- buf[c] = (unsigned char)(psz[c]);
- }
- return n;
- }
- return strlen(psz);
+ ((wxCSConv *)this)->LoadNow(); // discard constness
+
+ if (m_cset)
+ return m_cset->MB2WC(buf, psz, n);
+
+ // latin-1 (direct)
+ size_t len = strlen(psz);
+
+ if (buf)
+ {
+ for (size_t c = 0; c <= len; c++)
+ buf[c] = (unsigned char)(psz[c]);
+ }
+
+ return len;
}
size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
- ((wxCSConv *)this)->LoadNow(); // discard constness
- if (buf) {
- if (m_cset) {
- for (size_t c=0; c<n; c++) {
- size_t n;
- for (n=0; (n<256) && (m_cset->data[n] != psz[c]); n++);
- buf[c] = (n>0xff) ? '?' : n;
- }
- } else {
- // latin-1 (direct)
- for (size_t c=0; c<n; c++)
- buf[c] = (psz[c]>0xff) ? '?' : psz[c];
- }
- return n;
- }
- return wcslen(psz);
+ ((wxCSConv *)this)->LoadNow(); // discard constness
+
+ if (m_cset)
+ return m_cset->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
+ if (buf)
+ {
+ for (size_t c = 0; c <= len; c++)
+ buf[c] = (psz[c] > 0xff) ? '?' : psz[c];
+ }
+
+ return len;
}
+#ifdef HAVE_ICONV_H
+
+class IC_CharSetConverter
+{
+public:
+ IC_CharSetConverter(IC_CharSet *from, IC_CharSet *to)
+ {
+ cnv = iconv_open(wxConvLibc.cWX2MB(to->cname),
+ wxConvLibc.cWX2MB(from->cname));
+ }
+
+ ~IC_CharSetConverter()
+ {
+ if (cnv != (iconv_t)-1)
+ iconv_close(cnv);
+ }
+
+ size_t Convert(char *buf, const char *psz, size_t n)
+ {
+ 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
- //wxUSE_WCHAR_T
+ if (res == (size_t)-1)
+ return (size_t)-1;
+ return (n - outbuf);
+ }
+
+public:
+ iconv_t cnv;
+};
+
+#endif // HAVE_ICONV_H
+
+class EC_CharSetConverter
+{
+public:
+ EC_CharSetConverter(EC_CharSet* from,EC_CharSet* to)
+ { cnv.Init(from->enc,to->enc); }
+
+ size_t Convert(char* buf, const char* psz, size_t n)
+ {
+ size_t inbuf = strlen(psz);
+ if (buf) cnv.Convert(psz,buf);
+ return inbuf;
+ }
+
+public:
+ wxEncodingConverter cnv;
+};
+
+#else // !wxUSE_WCHAR_T
+
+// ----------------------------------------------------------------------------
+// stand-ins in absence of wchar_t
+// ----------------------------------------------------------------------------
+
+WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile;
+
+#endif // wxUSE_WCHAR_T
projects / wxWidgets.git / blobdiff