lyx_mirror/src/encoding.C
Georg Baum 8e6e970d7b Next step of true unicode filenames: Use support::FileName instead of
std::string at many places (not all yet).


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16069 a592a061-630c-0410-9148-cb99ea01b6c8
2006-11-26 21:30:39 +00:00

319 lines
7.5 KiB
C

/**
* \file encoding.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author Dekel Tsur
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "encoding.h"
#include "debug.h"
#include "lyxlex.h"
#include "lyxrc.h"
#include "support/filename.h"
namespace lyx {
#ifndef CXX_GLOBAL_CSTD
using std::strtol;
#endif
using std::endl;
using std::string;
Encodings encodings;
namespace {
char_type arabic_table2[63][4] = {
{0x41, 0x41, 0x41, 0x41}, // 0xc1 = hamza
{0x42, 0xa1, 0x42, 0xa1}, // 0xc2 = ligature madda on alef
{0x43, 0xa2, 0x43, 0xa2}, // 0xc3 = ligature hamza on alef
{0x44, 0xa3, 0x44, 0xa3}, // 0xc4 = ligature hamza on waw
{0x45, 0xa4, 0x45, 0xa4}, // 0xc5 = ligature hamza under alef
{0x46, 0xf9, 0xf8, 0xa0}, // 0xc6 = ligature hamza on ya
{0x47, 0xa5, 0x47, 0xa5}, // 0xc7 = alef
{0x48, 0xae, 0xac, 0xad}, // 0xc8 = baa
{0x49, 0xb1, 0x49, 0xb1}, // 0xc9 = taa marbuta
{0x4a, 0xb4, 0xb2, 0xb3}, // 0xca = taa
{0x4b, 0xb7, 0xb5, 0xb6}, // 0xcb = thaa
{0x4c, 0xba, 0xb8, 0xb9}, // 0xcc = jeem
{0x4d, 0xbd, 0xbb, 0xbc}, // 0xcd = haa
{0x4e, 0xc0, 0xbe, 0xbf}, // 0xce = khaa
{0x4f, 0xa6, 0x4f, 0xa6}, // 0xcf = dal
{0x50, 0xa7, 0x50, 0xa7}, // 0xd0 = thal
{0x51, 0xa8, 0x51, 0xa8}, // 0xd1 = ra
{0x52, 0xa9, 0x52, 0xa9}, // 0xd2 = zain
{0x53, 0xc3, 0xc1, 0xc2}, // 0xd3 = seen
{0x54, 0xc6, 0xc4, 0xc5}, // 0xd4 = sheen
{0x55, 0xc9, 0xc7, 0xc8}, // 0xd5 = sad
{0x56, 0xcc, 0xca, 0xcb}, // 0xd6 = dad
{0x57, 0xcf, 0xcd, 0xce}, // 0xd7 = tah
{0x58, 0xd2, 0xd0, 0xd1}, // 0xd8 = zah
{0x59, 0xd5, 0xd3, 0xd4}, // 0xd9 = ain
{0x5a, 0xd8, 0xd6, 0xd7}, // 0xda = ghain
{0,0,0,0}, // 0xdb
{0,0,0,0}, // 0xdc
{0,0,0,0}, // 0xdd
{0,0,0,0}, // 0xde
{0,0,0,0}, // 0xdf
{0,0,0,0}, // 0xe0
{0x61, 0xdb, 0xd9, 0xda}, // 0xe1 = fa
{0x62, 0xde, 0xdc, 0xdd}, // 0xe2 = qaf
{0x63, 0xe1, 0xdf, 0xe0}, // 0xe3 = kaf
{0x64, 0xe4, 0xe2, 0xe3}, // 0xe4 = lam
{0x65, 0xe7, 0xe5, 0xe6}, // 0xe5 = meem
{0x66, 0xea, 0xe8, 0xe9}, // 0xe6 = noon
{0x67, 0xed, 0xeb, 0xec}, // 0xe7 = ha
{0x68, 0xaa, 0x68, 0xaa}, // 0xe8 = waw
{0x69, 0xab, 0x69, 0xab}, // 0xe9 = alef maksura
{0x6a, 0xf0, 0xee, 0xef}, // 0xea = ya
{0x6b, 0x6b, 0x6b, 0x6b}, // 0xeb = fathatan
{0x6c, 0x6c, 0x6c, 0x6c}, // 0xec = dammatan
{0x6d, 0x6d, 0x6d, 0x6d}, // 0xed = kasratan
{0x6e, 0x6e, 0x6e, 0x6e}, // 0xee = fatha
{0x6f, 0x6f, 0x6f, 0x6f}, // 0xef = damma
{0x70, 0x70, 0x70, 0x70}, // 0xf0 = kasra
{0x71, 0x71, 0x71, 0x71}, // 0xf1 = shadda
{0x72, 0x72, 0x72, 0x72}, // 0xf2 = sukun
{0,0,0,0}, // 0xf3
{0,0,0,0}, // 0xf4
{0,0,0,0}, // 0xf5
{0,0,0,0}, // 0xf6
{0,0,0,0}, // 0xf7
{0,0,0,0}, // 0xf8
{0,0,0,0}, // 0xf9
{0,0,0,0}, // 0xfa
{0,0,0,0}, // 0xfb
{0,0,0,0}, // 0xfc
{0,0,0,0}, // 0xfd
{0,0,0,0}, // 0xfe
{0,0,0,0}, // 0xff
};
char_type arabic_table[63][2] = {
{0xc1, 0xc1}, // 0xc1 = hamza
{0xc2, 0xc2}, // 0xc2 = ligature madda on alef
{0xc3, 0xc3}, // 0xc3 = ligature hamza on alef
{0xc4, 0xc4}, // 0xc4 = ligature hamza on waw
{0xc5, 0xc5}, // 0xc5 = ligature hamza under alef
{0xc6, 0xc0}, // 0xc6 = ligature hamza on ya
{0xc7, 0xc7}, // 0xc7 = alef
{0xc8, 0xeb}, // 0xc8 = baa
{0xc9, 0xc9}, // 0xc9 = taa marbuta
{0xca, 0xec}, // 0xca = taa
{0xcb, 0xed}, // 0xcb = thaa
{0xcc, 0xee}, // 0xcc = jeem
{0xcd, 0xef}, // 0xcd = haa
{0xce, 0xf0}, // 0xce = khaa
{0xcf, 0xcf}, // 0xcf = dal
{0xd0, 0xd0}, // 0xd0 = thal
{0xd1, 0xd1}, // 0xd1 = ra
{0xd2, 0xd2}, // 0xd2 = zain
{0xd3, 0xf1}, // 0xd3 = seen
{0xd4, 0xf2}, // 0xd4 = sheen
{0xd5, 0xf3}, // 0xd5 = sad
{0xd6, 0xf4}, // 0xd6 = dad
{0xd7, 0xd7}, // 0xd7 = tah
{0xd8, 0xd8}, // 0xd8 = zah
{0xd9, 0xf5}, // 0xd9 = ain
{0xda, 0xf6}, // 0xda = ghain
{0,0}, // 0xdb
{0,0}, // 0xdc
{0,0}, // 0xdd
{0,0}, // 0xde
{0,0}, // 0xdf
{0,0}, // 0xe0
{0xe1, 0xf7}, // 0xe1 = fa
{0xe2, 0xf8}, // 0xe2 = qaf
{0xe3, 0xf9}, // 0xe3 = kaf
{0xe4, 0xfa}, // 0xe4 = lam
{0xe5, 0xfb}, // 0xe5 = meem
{0xe6, 0xfc}, // 0xe6 = noon
{0xe7, 0xfd}, // 0xe7 = ha
{0xe8, 0xe8}, // 0xe8 = waw
{0xe9, 0xe9}, // 0xe9 = alef maksura
{0xea, 0xfe}, // 0xea = ya
{0xa8, 0xa8}, // 0xeb = fathatan
{0xa9, 0xa9}, // 0xec = dammatan
{0xaa, 0xaa}, // 0xed = kasratan
{0xab, 0xab}, // 0xee = fatha
{0xac, 0xac}, // 0xef = damma
{0xad, 0xad}, // 0xf0 = kasra
{0xae, 0xae}, // 0xf1 = shadda
{0xaf, 0xaf}, // 0xf2 = sukun
{0,0}, // 0xf3
{0,0}, // 0xf4
{0,0}, // 0xf5
{0,0}, // 0xf6
{0,0}, // 0xf7
{0,0}, // 0xf8
{0,0}, // 0xf9
{0,0}, // 0xfa
{0,0}, // 0xfb
{0,0}, // 0xfc
{0,0}, // 0xfd
{0,0}, // 0xfe
{0,0} // 0xff
};
char_type const arabic_start = 0xc1;
} // namespace anon
bool Encodings::isComposeChar_hebrew(char_type c)
{
return c <= 0xd2 && c >= 0xc0 &&
c != 0xce && c != 0xd0;
}
// Special Arabic letters are ones that do not get connected from left
// they are hamza, alef_madda, alef_hamza, waw_hamza, alef_hamza_under,
// alef, tah_marbota, dal, thal, rah, zai, wow, alef_maksoura
bool Encodings::is_arabic_special(char_type c)
{
return (c >= 0xc1 && c <= 0xc5) ||
c == 0xc7 || c == 0xc9 ||
c == 0xcf || c == 0xe8 ||
(c >= 0xd0 && c <= 0xd2) ||
c == 0xe9;
}
bool Encodings::isComposeChar_arabic(char_type c)
{
return c >= 0xeb && c <= 0xf2;
}
bool Encodings::is_arabic(char_type c)
{
return c >= arabic_start && arabic_table[c-arabic_start][0];
}
char_type Encodings::transformChar(char_type c,
Encodings::Letter_Form form)
{
if (!is_arabic(c))
return c;
if (lyxrc.font_norm_type == LyXRC::ISO_10646_1)
return arabic_table2[c-arabic_start][form];
else
return arabic_table[c-arabic_start][form >> 1];
}
Encoding const * Encodings::getFromLyXName(string const & name) const
{
EncodingList::const_iterator it = encodinglist.find(name);
if (it != encodinglist.end())
return &it->second;
else
return 0;
}
namespace {
class LaTeXNamesEqual : public std::unary_function<std::pair<std::string, Encoding>, bool> {
public:
LaTeXNamesEqual(string const & LaTeXName)
: LaTeXName_(LaTeXName) {}
bool operator()(std::pair<std::string, Encoding> const & encoding) const
{
return encoding.second.latexName() == LaTeXName_;
}
private:
string LaTeXName_;
};
} // namespace anon
Encoding const * Encodings::getFromLaTeXName(string const & name) const
{
EncodingList::const_iterator const it =
std::find_if(encodinglist.begin(), encodinglist.end(),
LaTeXNamesEqual(name));
if (it != encodinglist.end())
return &it->second;
else
return 0;
}
Encodings::Encodings()
{
}
void Encodings::read(support::FileName const & filename)
{
enum Encodingtags {
et_encoding = 1,
et_end,
et_last
};
struct keyword_item encodingtags[et_last - 1] = {
{ "encoding", et_encoding },
{ "end", et_end }
};
LyXLex lex(encodingtags, et_last - 1);
lex.setFile(filename);
while (lex.isOK()) {
switch (lex.lex()) {
case et_encoding:
{
lex.next();
string const name = lex.getString();
lex.next();
string const latexname = lex.getString();
lex.next();
string const iconvname = lex.getString();
lyxerr[Debug::INFO] << "Reading encoding " << name << endl;
encodinglist[name] = Encoding(name, latexname, iconvname);
if (lex.lex() != et_end)
lex.printError("Encodings::read: "
"missing end");
break;
}
case et_end:
lex.printError("Encodings::read: Misplaced end");
break;
case LyXLex::LEX_FEOF:
break;
default:
lex.printError("Encodings::read: "
"Unknown tag: `$$Token'");
break;
}
}
}
} // namespace lyx