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/* pango-arabic module
*
* (C) 2000 K. Koehler <koehler@or.uni-bonn.de>
*
* This file provides a mapping unicode <- langboxfont
*/
#include <stdio.h>
#include <glib.h>
#include "pango.h"
#include "pangox.h"
/* #define DEBUG */
#ifdef DEBUG
#include <stdio.h>
#endif
int
arabic_lboxinit(PangoFont *font,PangoXSubfont* lboxfonts)
{
static char *lbox_charsets0[] = {
"iso8859-6.8x",
};
PangoXSubfont *subfonts;
int *subfont_charsets;
int n_subfonts;
n_subfonts = pango_x_list_subfonts (font,lbox_charsets0,
1, &subfonts, &subfont_charsets);
if (n_subfonts > 0)
{
lboxfonts[0] = subfonts[0];
g_free (subfonts);
g_free (subfont_charsets);
}
else
{
g_free (subfonts);
g_free (subfont_charsets);
return 0;
}
return 1;
}
typedef struct {
gunichar unicodechar;
int charindex;
} fontentry;
static fontentry charmap [] =
{
{ 0xFE80,0xC1 }, /* HAMZA; handle seperately !!! */
{ 0xFE81,0xC2 }, /* ALIF MADDA */
{ 0xFE82,0xC2 },
{ 0xFE83,0xC3 }, /* ALIF HAMZA */
{ 0xFE84,0xC3 },
{ 0xFE85,0xC4 }, /* WAW HAMZA */
{ 0xFE86,0xC4 },
{ 0xFE87,0xC5 }, /* ALIF IHAMZA */
{ 0xFE88,0xC5 },
{ 0xFE89,0x9F }, /* YA HAMZA */
{ 0xFE8A,0xC6 },
{ 0xFE8B,0xC0 }, /* HMAZA-'pod' */
{ 0xFE8C,0xC0 },
{ 0xFE8D,0xC7 }, /* ALIF */
{ 0xFE8E,0xC7 },
{ 0xFE8F,0xC8 }, /* BA */
{ 0xFE90,0xC8 },
{ 0xFE91,0xEB },
{ 0xFE92,0xEB },
{ 0xFE93,0xC9 }, /* TA MARBUTA */
{ 0xFE94,0x8E },
{ 0xFE95,0xCA }, /* TA */
{ 0xFE96,0xCA },
{ 0xFE97,0xEC },
{ 0xFE98,0xEC },
{ 0xFE99,0xCB }, /* THA */
{ 0xFE9A,0xCB },
{ 0xFE9B,0xED },
{ 0xFE9C,0xED },
{ 0xFE9D,0xCC }, /* DJIM */
{ 0xFE9E,0xCC },
{ 0xFE9F,0xEE },
{ 0xFEA0,0xEE },
{ 0xFEA1,0xCD }, /* .HA */
{ 0xFEA2,0xCD },
{ 0xFEA3,0xEF },
{ 0xFEA4,0xEF },
{ 0xFEA5,0xCE }, /* CHA */
{ 0xFEA6,0xCE },
{ 0xFEA7,0xF0 },
{ 0xFEA8,0xF0 },
{ 0xFEA9,0xCF }, /* DAL */
{ 0xFEAA,0xCF },
{ 0xFEAB,0xD0 }, /* THAL */
{ 0xFEAC,0xD0 },
{ 0xFEAD,0xD1 }, /* RA */
{ 0xFEAE,0xD1 },
{ 0xFEAF,0xD2 }, /* ZAY */
{ 0xFEB0,0xD2 },
{ 0xFEB1,0xD3 }, /* SIN */
{ 0xFEB2,0x8F },
{ 0xFEB3,0xF1 },
{ 0xFEB4,0xF1 },
{ 0xFEB5,0xD4 }, /* SHIN */
{ 0xFEB2,0x90 },
{ 0xFEB3,0xF2 },
{ 0xFEB4,0xF2 },
{ 0xFEB9,0xD5 }, /* SAAD */
{ 0xFEBA,0x91 },
{ 0xFEBB,0xF3 },
{ 0xFEBC,0xF3 },
{ 0xFEBD,0xD6 }, /* DAAD */
{ 0xFEBE,0x92 },
{ 0xFEBF,0xF4 },
{ 0xFEC0,0xF4 },
{ 0xFEC1,0xD7 }, /* .TA */
{ 0xFEC2,0xD7 },
{ 0xFEC3,0x93 },
{ 0xFEC4,0x93 },
{ 0xFEC5,0xD8 }, /* .ZA */
{ 0xFEC6,0xD8 },
{ 0xFEC7,0x94 },
{ 0xFEC8,0x94 },
{ 0xFEC9,0xD9 }, /* AIN */
{ 0xFECA,0x96 },
{ 0xFECB,0xF5 },
{ 0xFECC,0x95 },
{ 0xFECD,0xDA }, /* RAIN */
{ 0xFECE,0x98 },
{ 0xFECF,0xF6 },
{ 0xFED0,0x97 },
{ 0xFED1,0xE1 }, /* FA */
{ 0xFED2,0xE1 },
{ 0xFED3,0xF7 },
{ 0xFED4,0x99 },
{ 0xFED5,0xE2 }, /* QAF */
{ 0xFED6,0xE2 },
{ 0xFED7,0xF8 },
{ 0xFEB8,0x9A },
{ 0xFED9,0xE3 }, /* KAF */
{ 0xFEDA,0xE3 },
{ 0xFEDB,0xF9 },
{ 0xFEDC,0x9B },
{ 0xFEDD,0xE4 }, /* LAM */
{ 0xFEDE,0xE4 },
{ 0xFEDF,0xFA },
{ 0xFEE0,0xFA },
{ 0xFEE1,0xE5 }, /* MIM */
{ 0xFEE2,0xE5 },
{ 0xFEE3,0xFB },
{ 0xFEE4,0xFB },
{ 0xFEE5,0xE6 }, /* NUN */
{ 0xFEE6,0xE6 },
{ 0xFEE7,0xFC },
{ 0xFEE8,0xFC },
{ 0xFEE9,0xE7 }, /* HA */
{ 0xFEEA,0x9D },
{ 0xFEEB,0xFD },
{ 0xFEEC,0x9C },
{ 0xFEED,0xE8 }, /* WAW */
{ 0xFEEE,0xE8 },
{ 0xFEEF,0x8D }, /* ALIF MAQSORA */
{ 0xFEF0,0xE9 },
{ 0xFEF1,0x9E }, /* YA */
{ 0xFEF2,0xEA },
{ 0xFEF3,0xFE },
{ 0xFEF4,0xFE }
};
void
arabic_lbox_recode(PangoXSubfont* subfont,int* glyph,int* glyph2,
PangoXSubfont* lboxfonts)
{
int letter=*glyph;
*subfont = lboxfonts[0];
if ((letter >= 0x660)&&(letter <= 0x669)) /* indic numeral */
{
*glyph = letter - 0x660 + 0xB0;
}
else if ((letter >= 0xFE80)&&(letter <= 0xFEF4))
{
#ifdef DEBUG
if (charmap[letter-0xFE80].unicodechar != letter)
{
fprintf(stderr,"[ar] lboxfont charmap table defect "
"%x comes out as %x ",
letter,charmap[letter-0xFE80].unicodechar);
}
#endif
*glyph = charmap[letter-0xFE80].charindex;
}
else if ((letter >= 0x64B)&&(letter <= 0x652))
{ /* a vowel */
*glyph = letter - 0x64B + 0xA8;
}
else if ((letter >= 0xFEF5)&&(letter <= 0xFEFC))
{ /* Lam-Alif. Langbox solved the problem in their own way ... */
#ifdef DEBUG
fprintf(stderr,"[ar] lbox-recoding chars %x",
letter);
#endif
if (!(letter % 2))
{
*glyph = 0xA6;
}
else
{
*glyph = 0xA5;
}
switch (letter)
{
case 0xFEF5 :
case 0xFEF6 : *glyph2 = 0xA2; break; /* Lam-Alif Madda */
case 0xFEF7 :
case 0xFEF8 : *glyph2 = 0xA3; break; /* Lam-Alif Hamza */
case 0xFEF9 :
case 0xFEFA : *glyph2 = 0xA4; break; /* Lam-Alif iHamza */
case 0xFEFB :
case 0xFEFC : *glyph2 = 0xA1; break; /* Lam-Alif */
}
}
else if (letter == 0x621)
{
*glyph = charmap[0].charindex;
}
else if (letter == 0x640)
{ /* tatweel */
*glyph = 0xE0;
}
else if (letter == 0x61F)
{ /* question mark */
*glyph = 0xBF;
}
else if (letter < 0xB0 )
{
*glyph = letter;
}
else
{
*glyph = 0x20; /* we don't have this thing -- use a space */
/* This has to be something that does not print anything !! */
}
}
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