/*
* Create an Identity-* CMap (for both 1 and 2-byte encodings)
*/
fz_error
pdf_newidentitycmap(pdf_cmap **cmapp, int wmode, int bytes)
{
fz_error error;
pdf_cmap *cmap;
error = pdf_newcmap(&cmap);
if (error)
return fz_rethrow(error, "cannot create cmap");
sprintf(cmap->cmapname, "Identity-%c", wmode ? 'V' : 'H');
error = pdf_addcodespace(cmap, 0x0000, 0xffff, bytes);
if (error) {
pdf_dropcmap(cmap);
return fz_rethrow(error, "cannot add code space");
}
error = pdf_maprangetorange(cmap, 0x0000, 0xffff, 0);
if (error) {
pdf_dropcmap(cmap);
return fz_rethrow(error, "cannot map <0000> to <ffff>");
}
error = pdf_sortcmap(cmap);
if (error) {
pdf_dropcmap(cmap);
return fz_rethrow(error, "cannot sort cmap");
}
pdf_setwmode(cmap, wmode);
*cmapp = cmap;
return fz_okay;
}
/*
* Create an Identity-* CMap (for both 1 and 2-byte encodings)
*/
pdf_cmap *
pdf_newidentitycmap(int wmode, int bytes)
{
pdf_cmap *cmap = pdf_newcmap();
sprintf(cmap->cmapname, "Identity-%c", wmode ? 'V' : 'H');
pdf_addcodespace(cmap, 0x0000, 0xffff, bytes);
pdf_maprangetorange(cmap, 0x0000, 0xffff, 0);
pdf_sortcmap(cmap);
pdf_setwmode(cmap, wmode);
return cmap;
}
static fz_error parsecodespacerange(pdf_cmap *cmap, fz_stream *file)
{
fz_error error;
char buf[256];
pdf_token_e tok;
int len;
int lo, hi;
while (1)
{
error = lexcmap(&tok, file, buf, sizeof buf, &len);
if (error)
return fz_rethrow(error, "syntaxerror in cmap");
if (tok == TENDCODESPACERANGE)
return fz_okay;
else if (tok == PDF_TSTRING)
{
lo = codefromstring(buf, len);
error = lexcmap(&tok, file, buf, sizeof buf, &len);
if (error)
return fz_rethrow(error, "syntaxerror in cmap");
if (tok == PDF_TSTRING)
{
hi = codefromstring(buf, len);
pdf_addcodespace(cmap, lo, hi, len);
}
else break;
}
else break;
}
return fz_throw("expected string or endcodespacerange");
}
