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+++ /dev/null
-/*
- * Copyright (C) 2005-2008 Team XBMC
- * http://www.xbmc.org
- *
- * A port of Mohammed Yousif's C Arabic shaping code
- * Ported by Nibras Al-shaiba
- *
- * This Program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This Program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with XBMC; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- */
-
-#ifdef _WIN32
-#pragma comment(lib, "libfribidi.lib")
-#endif
-
-#include <stdlib.h>
-#include "ArabicShaping.h"
-
-#define NIL 0x0000
-
-#define MAP_LENGTH 37
-#define COMB_MAP_LENGTH 4
-#define TRANS_CHARS_LENGTH 39
-
-typedef struct
-{
- FriBidiChar code;
- FriBidiChar mIsolated;
- FriBidiChar mInitial;
- FriBidiChar mMedial;
- FriBidiChar mFinal;
-} CharRep;
-
-typedef struct
-{
- FriBidiChar code[2];
- FriBidiChar mIsolated;
- FriBidiChar mInitial;
- FriBidiChar mMedial;
- FriBidiChar mFinal;
-} CombCharRep;
-
-CharRep charsMap[MAP_LENGTH] =
-{
- { 0x0621, 0xFE80, NIL, NIL, NIL }, /* HAMZA */
- { 0x0622, 0xFE81, NIL, NIL, 0xFE82 }, /* ALEF_MADDA */
- { 0x0623, 0xFE83, NIL, NIL, 0xFE84 }, /* ALEF_HAMZA_ABOVE */
- { 0x0624, 0xFE85, NIL, NIL, 0xFE86 }, /* WAW_HAMZA */
- { 0x0625, 0xFE87, NIL, NIL, 0xFE88 }, /* ALEF_HAMZA_BELOW */
- { 0x0626, 0xFE89, 0xFE8B, 0xFE8C, 0xFE8A }, /* YEH_HAMZA */
- { 0x0627, 0xFE8D, NIL, NIL, 0xFE8E }, /* ALEF */
- { 0x0628, 0xFE8F, 0xFE91, 0xFE92, 0xFE90 }, /* BEH */
- { 0x0629, 0xFE93, NIL, NIL, 0xFE94 }, /* TEH_MARBUTA */
- { 0x062A, 0xFE95, 0xFE97, 0xFE98, 0xFE96 }, /* TEH */
- { 0x062B, 0xFE99, 0xFE9B, 0xFE9C, 0xFE9A }, /* THEH */
- { 0x062C, 0xFE9D, 0xFE9F, 0xFEA0, 0xFE9E }, /* JEEM */
- { 0x062D, 0xFEA1, 0xFEA3, 0xFEA4, 0xFEA2 }, /* HAH */
- { 0x062E, 0xFEA5, 0xFEA7, 0xFEA8, 0xFEA6 }, /* KHAH */
- { 0x062F, 0xFEA9, NIL, NIL, 0xFEAA }, /* DAL */
- { 0x0630, 0xFEAB, NIL, NIL, 0xFEAC }, /* THAL */
- { 0x0631, 0xFEAD, NIL, NIL, 0xFEAE }, /* REH */
- { 0x0632, 0xFEAF, NIL, NIL, 0xFEB0 }, /* ZAIN */
- { 0x0633, 0xFEB1, 0xFEB3, 0xFEB4, 0xFEB2 }, /* SEEN */
- { 0x0634, 0xFEB5, 0xFEB7, 0xFEB8, 0xFEB6 }, /* SHEEN */
- { 0x0635, 0xFEB9, 0xFEBB, 0xFEBC, 0xFEBA }, /* SAD */
- { 0x0636, 0xFEBD, 0xFEBF, 0xFEC0, 0xFEBE }, /* DAD */
- { 0x0637, 0xFEC1, 0xFEC3, 0xFEC4, 0xFEC2 }, /* TAH */
- { 0x0638, 0xFEC5, 0xFEC7, 0xFEC8, 0xFEC6 }, /* ZAH */
- { 0x0639, 0xFEC9, 0xFECB, 0xFECC, 0xFECA }, /* AIN */
- { 0x063A, 0xFECD, 0xFECF, 0xFED0, 0xFECE }, /* GHAIN */
- { 0x0640, 0x0640, NIL, NIL, NIL }, /* TATWEEL */
- { 0x0641, 0xFED1, 0xFED3, 0xFED4, 0xFED2 }, /* FEH */
- { 0x0642, 0xFED5, 0xFED7, 0xFED8, 0xFED6 }, /* QAF */
- { 0x0643, 0xFED9, 0xFEDB, 0xFEDC, 0xFEDA }, /* KAF */
- { 0x0644, 0xFEDD, 0xFEDF, 0xFEE0, 0xFEDE }, /* LAM */
- { 0x0645, 0xFEE1, 0xFEE3, 0xFEE4, 0xFEE2 }, /* MEEM */
- { 0x0646, 0xFEE5, 0xFEE7, 0xFEE8, 0xFEE6 }, /* NOON */
- { 0x0647, 0xFEE9, 0xFEEB, 0xFEEC, 0xFEEA }, /* HEH */
- { 0x0648, 0xFEED, NIL, NIL, 0xFEEE }, /* WAW */
- //{ 0x0649, 0xFEEF, 0xFBE8, 0xFBE9, 0xFEF0 }, /* ALEF_MAKSURA */
- { 0x0649, 0xFEEF, NIL, NIL, 0xFEF0 }, /* ALEF_MAKSURA */
- { 0x064A, 0xFEF1, 0xFEF3, 0xFEF4, 0xFEF2 } /* YEH */
-};
-
-CombCharRep combCharsMap[COMB_MAP_LENGTH] =
-{
- { { 0x0644, 0x0622 }, 0xFEF5, NIL, NIL, 0xFEF6 }, /* LAM_ALEF_MADDA */
- { { 0x0644, 0x0623 }, 0xFEF7, NIL, NIL, 0xFEF8 }, /* LAM_ALEF_HAMZA_ABOVE */
- { { 0x0644, 0x0625 }, 0xFEF9, NIL, NIL, 0xFEFA }, /* LAM_ALEF_HAMZA_BELOW */
- { { 0x0644, 0x0627 }, 0xFEFB, NIL, NIL, 0xFEFC } /* LAM_ALEF */
-};
-
-FriBidiChar transChars[TRANS_CHARS_LENGTH] =
-{
- 0x0610, /* ARABIC SIGN SALLALLAHOU ALAYHE WASSALLAM */
- 0x0612, /* ARABIC SIGN ALAYHE ASSALLAM */
- 0x0613, /* ARABIC SIGN RADI ALLAHOU ANHU */
- 0x0614, /* ARABIC SIGN TAKHALLUS */
- 0x0615, /* ARABIC SMALL HIGH TAH */
- 0x064B, /* ARABIC FATHATAN */
- 0x064C, /* ARABIC DAMMATAN */
- 0x064D, /* ARABIC KASRATAN */
- 0x064E, /* ARABIC FATHA */
- 0x064F, /* ARABIC DAMMA */
- 0x0650, /* ARABIC KASRA */
- 0x0651, /* ARABIC SHADDA */
- 0x0652, /* ARABIC SUKUN */
- 0x0653, /* ARABIC MADDAH ABOVE */
- 0x0654, /* ARABIC HAMZA ABOVE */
- 0x0655, /* ARABIC HAMZA BELOW */
- 0x0656, /* ARABIC SUBSCRIPT ALEF */
- 0x0657, /* ARABIC INVERTED DAMMA */
- 0x0658, /* ARABIC MARK NOON GHUNNA */
- 0x0670, /* ARABIC LETTER SUPERSCRIPT ALEF */
- 0x06D6, /* ARABIC SMALL HIGH LIGATURE SAD WITH LAM WITH ALEF MAKSURA */
- 0x06D7, /* ARABIC SMALL HIGH LIGATURE QAF WITH LAM WITH ALEF MAKSURA */
- 0x06D8, /* ARABIC SMALL HIGH MEEM INITIAL FORM */
- 0x06D9, /* ARABIC SMALL HIGH LAM ALEF */
- 0x06DA, /* ARABIC SMALL HIGH JEEM */
- 0x06DB, /* ARABIC SMALL HIGH THREE DOTS */
- 0x06DC, /* ARABIC SMALL HIGH SEEN */
- 0x06DF, /* ARABIC SMALL HIGH ROUNDED ZERO */
- 0x06E0, /* ARABIC SMALL HIGH UPRIGHT RECTANGULAR ZERO */
- 0x06E1, /* ARABIC SMALL HIGH DOTLESS HEAD OF KHAH */
- 0x06E2, /* ARABIC SMALL HIGH MEEM ISOLATED FORM */
- 0x06E3, /* ARABIC SMALL LOW SEEN */
- 0x06E4, /* ARABIC SMALL HIGH MADDA */
- 0x06E7, /* ARABIC SMALL HIGH YEH */
- 0x06E8, /* ARABIC SMALL HIGH NOON */
- 0x06EA, /* ARABIC EMPTY CENTRE LOW STOP */
- 0x06EB, /* ARABIC EMPTY CENTRE HIGH STOP */
- 0x06EC, /* ARABIC ROUNDED HIGH STOP WITH FILLED CENTRE */
- 0x06ED /* ARABIC SMALL LOW MEEM */
-};
-
-static fribidi_boolean CharacterMapContains(FriBidiChar c)
-{
- for (int i = 0; i < MAP_LENGTH; i++)
- {
- if (charsMap[i].code == c)
- return true;
- }
-
- return false;
-}
-
-static CharRep GetCharRep(FriBidiChar c)
-{
- for (int i = 0; i < MAP_LENGTH; i++)
- {
- if (charsMap[i].code == c)
- return charsMap[i];
- }
-
- CharRep nilRep = { NIL, NIL, NIL, NIL };
- return nilRep;
-}
-
-static CombCharRep GetCombCharRep(FriBidiChar c1, FriBidiChar c2)
-{
- int i = 0;
- for (i = 0; i < COMB_MAP_LENGTH; i++)
- {
- if (combCharsMap[i].code[0] == c1 && combCharsMap[i].code[1] == c2)
- return combCharsMap[i];
- }
- CombCharRep combNilRep =
- {
- { NIL, NIL }, NIL, NIL, NIL };
- return combNilRep;
-}
-
-static fribidi_boolean IsTransparent(FriBidiChar c)
-{
- int i = 0;
- for (i = 0; i < TRANS_CHARS_LENGTH; i++)
- {
- if (transChars[i] == c)
- return true;
- }
- return false;
-}
-
-FriBidiChar* shape_arabic(FriBidiChar * str, int len)
-{
- CharRep crep = { 0 };
- CombCharRep combcrep;
- FriBidiChar * shaped =
- (FriBidiChar *) malloc(sizeof(FriBidiChar) * (len + 1));
- int writeCount = 0;
- for (int i = 0; i < len; i++)
- {
- FriBidiChar current = str[i];
- if (CharacterMapContains(current))
- {
- FriBidiChar prev = NIL;
- FriBidiChar next = NIL;
- int prevID = i - 1;
- int nextID = i + 1;
-
- /*
- Transparent characters have no effect in the shaping process.
- So, ignore all the transparent characters that are BEFORE the
- current character.
- */
- for (; prevID >= 0; prevID--)
- if (!IsTransparent(str[prevID]))
- break;
-
- if ((prevID < 0) || !CharacterMapContains(prev = str[prevID]) || (!((crep
- = GetCharRep(prev)).mInitial != NIL) && !(crep.mMedial != NIL)))
- prev = NIL;
-
- /*
- Transparent characters have no effect in the shaping process.
- So, ignore all the transparent characters that are AFTER the
- current character.
- */
- for (; nextID < len; nextID++)
- if (!IsTransparent(str[nextID]))
- break;
-
- if ((nextID >= len) || !CharacterMapContains(next = str[nextID])
- || (!((crep = GetCharRep(next)).mMedial != NIL) && !((crep
- = GetCharRep(next)).mFinal != NIL) && (next != 0x0640)))
- next = NIL;
-
- /* Combinations */
- if (current == 0x0644 && next != NIL && (next == 0x0622 || next == 0x0623
- || next == 0x0625 || next == 0x0627))
- {
- combcrep = GetCombCharRep(current, next);
- if (prev != NIL)
- {
- shaped[writeCount++] = combcrep.mFinal;
- }
- else
- {
- shaped[writeCount++] = combcrep.mIsolated;
- }
- i++;
- continue;
- }
-
- crep = GetCharRep(current);
-
- /* Medial */
- if (prev != NIL && next != NIL && crep.mMedial != NIL)
- {
- shaped[writeCount++] = crep.mMedial;
- continue;
- /* Final */
- }
- else if (prev != NIL && crep.mFinal != NIL)
- {
- shaped[writeCount++] = crep.mFinal;
- continue;
- /* Initial */
- }
- else if (next != NIL && crep.mInitial != NIL)
- {
- shaped[writeCount++] = crep.mInitial;
- continue;
- }
- /* Isolated */
- shaped[writeCount++] = crep.mIsolated;
- }
- else
- {
- shaped[writeCount++] = current;
- }
- }
- shaped[writeCount] = NIL;
- return shaped;
-}
projects / vuplus_xbmc / commitdiff