lyx_mirror/src/encoding.C
Angus Leeming 495a79fea6 Fix compiliation with Compaq cxx 6.3 and above.
Document a compilation HOWTO in INSTALL.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH-1_2_X@4407 a592a061-630c-0410-9148-cb99ea01b6c8
2002-06-17 10:25:27 +00:00

348 lines
11 KiB
C

/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich
* Copyright 1995-2001 The LyX Team.
*
* ====================================================== */
#include <config.h>
#ifdef __GNUG__
#pragma implementation
#endif
#include "encoding.h"
#include "debug.h"
#ifndef CXX_GLOBAL_CSTD
using std::strtol;
#endif
using std::endl;
Encodings encodings;
namespace {
Uchar tab_iso8859_1[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
};
#ifdef USE_UNICODE_FOR_SYMBOLS
Uchar tab_symbol[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x0020, 0x0021, 0x2200, 0x0023, 0x2203, 0x0025, 0x0026, 0x220b,
0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
// 0x2245, 0x0391, 0x0392, 0x03a7, 0x0394, 0x0395, 0x03a6, 0x0393,
// 0x0397, 0x0399, 0x03d1, 0x039a, 0x039b, 0x039c, 0x039d, 0x039f,
// 0x03a0, 0x0398, 0x03a1, 0x03a3, 0x03a4, 0x03a5, 0x03c2, 0x03a9,
// 0x039e, 0x03a8, 0x0396, 0x005b, 0x2234, 0x005d, 0x22a5, 0xffff,
0x2245, 0x0041, 0x0042, 0x0058, 0x0394, 0x0045, 0x03c2, 0x03a9,
0x0048, 0x0049, 0x03d1, 0x004b, 0x039b, 0x004d, 0x004e, 0x004f,
0x03a0, 0x0398, 0x0050, 0x03a3, 0x0054, 0x0059, 0x03c2, 0x03a9,
0x039e, 0x03a8, 0x005a, 0x005b, 0x2234, 0x005d, 0x22a5, 0xffff,
0xffff, 0x03b1, 0x03b2, 0x03c7, 0x03b4, 0x03b5, 0x03d5, 0x03b3,
0x03b7, 0x03b9, 0x03c6, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03bf,
0x03c0, 0x03b8, 0x03c1, 0x03c3, 0x03c4, 0x03c5, 0x03d6, 0x03c9,
0x03be, 0x03c8, 0x03b6, 0x007b, 0x007c, 0x007d, 0x007e, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0x03d2, 0x2032, 0x2264, 0x2215, 0x221e, 0xffff, 0x2663,
0x2666, 0x2665, 0x2660, 0x2194, 0x2190, 0x2191, 0x2192, 0x2193,
0x00b0, 0x00b1, 0x2033, 0x2265, 0x00d7, 0x221d, 0x2202, 0x2022,
0x00f7, 0x2260, 0x2261, 0x2248, 0x22ef, 0xffff, 0xffff, 0x21b5,
0x2135, 0x2111, 0x211c, 0x2118, 0x2297, 0x2295, 0x2205, 0x2229,
0x222a, 0x2283, 0x2287, 0x2284, 0x2282, 0x2286, 0x2208, 0x2209,
0x2220, 0x2207, 0x00ae, 0x00a9, 0x2122, 0x220f, 0x221a, 0x22c5,
0x00ac, 0x2227, 0x2228, 0x21d4, 0x21d0, 0x21d1, 0x21d2, 0x21d3,
0x2662, 0x2329, 0x00ae, 0x00a9, 0x2122, 0x2211, 0xffff, 0xffff,
0xffff, 0x2308, 0xffff, 0x230a, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0x232a, 0x222b, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0x2309, 0xffff, 0x230b, 0xffff, 0xffff, 0xffff, 0xffff
};
#endif
unsigned char arabic_table2[63][4] = {
{0x41, 0x41, 0x41, 0x41}, // 0xc1 = hamza
{0x42, 0xa1, 0x42, 0x42}, // 0xc2 = ligature madda on alef
{0x43, 0xa2, 0x43, 0x43}, // 0xc3 = ligature hamza on alef
{0x44, 0xa3, 0x44, 0x44}, // 0xc4 = ligature hamza on waw
{0x45, 0xa4, 0x45, 0x45}, // 0xc5 = ligature hamza under alef
{0xf9, 0xf9, 0xf8, 0xa0}, // 0xc6 = ligature hamza on ya
{0x47, 0xa5, 0xa5, 0xa5}, // 0xc7 = alef
{0x48, 0xae, 0xac, 0xad}, // 0xc8 = baa
{0x49, 0xb1, 0xaf, 0xb0}, // 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, 0xa6, 0xa6}, // 0xcf = dal
{0x50, 0xa7, 0xa7, 0xa7}, // 0xd0 = thal
{0x51, 0xa8, 0xa8, 0xa8}, // 0xd1 = ra
{0x52, 0xa9, 0xa9, 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, 0xaa, 0xaa}, // 0xe8 = waw
{0x69, 0xab, 0xab, 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
};
unsigned char 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
};
unsigned char const arabic_start = 0xc1;
} // namespace anon
bool Encodings::IsComposeChar_hebrew(unsigned char c)
{
return c <= 0xd2 && c >= 0xc0 &&
c != 0xce && c != 0xd0;
}
bool Encodings::IsComposeChar_arabic(unsigned char c)
{
return c >= 0xeb && c <= 0xf2;
}
bool Encodings::is_arabic(unsigned char c)
{
return c >= arabic_start && arabic_table[c-arabic_start][0];
}
unsigned char Encodings::TransformChar(unsigned char 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::getEncoding(string const & encoding) const
{
EncodingList::const_iterator it = encodinglist.find(encoding);
if (it != encodinglist.end())
return &it->second;
else
return 0;
}
Encodings::Encodings()
{
encodinglist["iso8859-1"] = Encoding("iso8859-1", "latin1", tab_iso8859_1);
symbol_encoding_ =
#ifdef USE_UNICODE_FOR_SYMBOLS
Encoding("symbol", "", tab_symbol);
#else
Encoding("symbol", "", tab_iso8859_1);
#endif
}
void Encodings::read(string 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();
lyxerr[Debug::INIT] << "Reading encoding " << name << endl;
Uchar table[256];
for (unsigned int i = 0; i < 256; ++i) {
lex.next();
string const tmp = lex.getString();
table[i] = ::strtol(tmp.c_str(), 0 , 16);
}
encodinglist[name] = Encoding(name, latexname, table);
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;
}
}
}