- return 0;
-}
-
-// ----------------------------------------------------------------------------
-// UTF-8
-// ----------------------------------------------------------------------------
-
-WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8;
-
-static unsigned long 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);
- }
- if (res<=utf8_max[ocnt]) {
- // illegal UTF-8 encoding
- return (size_t)-1;
- }
- if (buf) *buf++=res;
- 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;
-}
-
-// ----------------------------------------------------------------------------
-// specified character set
-// ----------------------------------------------------------------------------
-
-class wxCharacterSet
-{
-public:
- wxArrayString names;
- wchar_t *data;
-};
-
-#ifndef WX_PRECOMP
- #include "wx/dynarray.h"
- #include "wx/filefn.h"
- #include "wx/textfile.h"
- #include "wx/tokenzr.h"
- #include "wx/utils.h"
-#endif
-
-WX_DECLARE_OBJARRAY(wxCharacterSet, wxCSArray);
-#include "wx/arrimpl.cpp"
-WX_DEFINE_OBJARRAY(wxCSArray);
-
-static wxCSArray wxCharsets;
-
-static void wxLoadCharacterSets(void)
-{
- 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());
- }
- 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 if (cmd == _T("CHARMAP")) {
- cset->data = (wchar_t *)calloc(256, sizeof(wchar_t));
- in_charset = TRUE;
- }
- else if (cmd == _T("END")) {
- if (token.GetNextToken() == _T("CHARMAP"))
- in_charset = FALSE;
- }
- 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]);
- }
- }
- }
- }
- if (cset) {
- cset->names.Shrink();
- wxCharsets.Add(cset);
- }
- }
- }
-#endif
- wxCharsets.Shrink();
-}
-
-static wxCharacterSet *wxFindCharacterSet(const wxChar *charset)
-{
- 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;
-}
projects / wxWidgets.git / blobdiff