| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Fri, 14 May 2010 16:40:13 +0300 | |
| changeset 22 | 79de32ba3296 |
| parent 3 | 41300fa6a67c |
| permissions | -rw-r--r-- |
| 0 | 1 |
/* |
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* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) |
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* |
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* This is part of HarfBuzz, an OpenType Layout engine library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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*/ |
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||
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#include "harfbuzz-shaper.h" |
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#include "harfbuzz-shaper-private.h" |
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#include <assert.h> |
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#include <stdio.h> |
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#define FLAG(x) (1 << (x)) |
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static HB_Bool isLetter(HB_UChar16 ucs) |
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{
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const int test = FLAG(HB_Letter_Uppercase) | |
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FLAG(HB_Letter_Lowercase) | |
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FLAG(HB_Letter_Titlecase) | |
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FLAG(HB_Letter_Modifier) | |
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FLAG(HB_Letter_Other); |
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return FLAG(HB_GetUnicodeCharCategory(ucs)) & test; |
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} |
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||
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static HB_Bool isMark(HB_UChar16 ucs) |
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{
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const int test = FLAG(HB_Mark_NonSpacing) | |
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FLAG(HB_Mark_SpacingCombining) | |
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FLAG(HB_Mark_Enclosing); |
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return FLAG(HB_GetUnicodeCharCategory(ucs)) & test; |
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} |
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||
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enum Form {
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Invalid = 0x0, |
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UnknownForm = Invalid, |
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Consonant, |
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Nukta, |
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Halant, |
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Matra, |
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VowelMark, |
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StressMark, |
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IndependentVowel, |
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LengthMark, |
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Control, |
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Other |
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}; |
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static const unsigned char indicForms[0xe00-0x900] = {
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// Devangari |
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Invalid, VowelMark, VowelMark, VowelMark, |
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IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
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||
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IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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77 |
||
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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82 |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, UnknownForm, UnknownForm, |
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Nukta, Other, Matra, Matra, |
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87 |
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Matra, Matra, Matra, Matra, |
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Matra, Matra, Matra, Matra, |
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Matra, Matra, Matra, Matra, |
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Matra, Halant, UnknownForm, UnknownForm, |
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92 |
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Other, StressMark, StressMark, StressMark, |
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StressMark, UnknownForm, UnknownForm, UnknownForm, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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97 |
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IndependentVowel, IndependentVowel, VowelMark, VowelMark, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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||
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Consonant, |
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Consonant, Consonant /* ??? */, Consonant, Consonant, |
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||
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// Bengali |
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Invalid, VowelMark, VowelMark, VowelMark, |
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Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, Invalid, Invalid, IndependentVowel, |
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113 |
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IndependentVowel, Invalid, Invalid, IndependentVowel, |
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IndependentVowel, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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118 |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Invalid, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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123 |
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Consonant, Invalid, Consonant, Invalid, |
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Invalid, Invalid, Consonant, Consonant, |
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Consonant, Consonant, UnknownForm, UnknownForm, |
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Nukta, Other, Matra, Matra, |
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128 |
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Matra, Matra, Matra, Matra, |
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Matra, Invalid, Invalid, Matra, |
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Matra, Invalid, Invalid, Matra, |
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Matra, Halant, Consonant, UnknownForm, |
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133 |
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Invalid, Invalid, Invalid, Invalid, |
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Invalid, Invalid, Invalid, VowelMark, |
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Invalid, Invalid, Invalid, Invalid, |
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Consonant, Consonant, Invalid, Consonant, |
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138 |
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IndependentVowel, IndependentVowel, VowelMark, VowelMark, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Consonant, Consonant, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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148 |
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// Gurmukhi |
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Invalid, VowelMark, VowelMark, VowelMark, |
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Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, IndependentVowel, IndependentVowel, Invalid, |
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Invalid, Invalid, Invalid, IndependentVowel, |
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154 |
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IndependentVowel, Invalid, Invalid, IndependentVowel, |
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IndependentVowel, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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159 |
||
160 |
Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Invalid, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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164 |
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Consonant, Invalid, Consonant, Consonant, |
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Invalid, Consonant, Consonant, Invalid, |
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Consonant, Consonant, UnknownForm, UnknownForm, |
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Nukta, Other, Matra, Matra, |
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169 |
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Matra, Matra, Matra, Invalid, |
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Invalid, Invalid, Invalid, Matra, |
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Matra, Invalid, Invalid, Matra, |
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Matra, Halant, UnknownForm, UnknownForm, |
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174 |
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Invalid, Invalid, Invalid, Invalid, |
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Invalid, UnknownForm, UnknownForm, UnknownForm, |
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Invalid, Consonant, Consonant, Consonant, |
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Consonant, Invalid, Consonant, Invalid, |
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179 |
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Other, Other, Invalid, Invalid, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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184 |
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StressMark, StressMark, Consonant, Consonant, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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189 |
||
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// Gujarati |
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Invalid, VowelMark, VowelMark, VowelMark, |
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Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, IndependentVowel, Invalid, IndependentVowel, |
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195 |
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IndependentVowel, IndependentVowel, Invalid, IndependentVowel, |
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IndependentVowel, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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200 |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Invalid, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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205 |
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Consonant, Invalid, Consonant, Consonant, |
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Invalid, Consonant, Consonant, Consonant, |
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Consonant, Consonant, UnknownForm, UnknownForm, |
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Nukta, Other, Matra, Matra, |
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210 |
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Matra, Matra, Matra, Matra, |
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Matra, Matra, Invalid, Matra, |
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Matra, Matra, Invalid, Matra, |
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Matra, Halant, UnknownForm, UnknownForm, |
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215 |
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Other, UnknownForm, UnknownForm, UnknownForm, |
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UnknownForm, UnknownForm, UnknownForm, UnknownForm, |
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UnknownForm, UnknownForm, UnknownForm, UnknownForm, |
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UnknownForm, UnknownForm, UnknownForm, UnknownForm, |
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220 |
||
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IndependentVowel, IndependentVowel, VowelMark, VowelMark, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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225 |
||
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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230 |
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// Oriya |
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Invalid, VowelMark, VowelMark, VowelMark, |
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Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
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IndependentVowel, Invalid, Invalid, IndependentVowel, |
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236 |
||
237 |
IndependentVowel, Invalid, Invalid, IndependentVowel, |
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IndependentVowel, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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241 |
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242 |
Consonant, Consonant, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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Consonant, Invalid, Consonant, Consonant, |
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Consonant, Consonant, Consonant, Consonant, |
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246 |
||
247 |
Consonant, Invalid, Consonant, Consonant, |
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Invalid, Consonant, Consonant, Consonant, |
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Consonant, Consonant, UnknownForm, UnknownForm, |
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Nukta, Other, Matra, Matra, |
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251 |
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Matra, Matra, Matra, Matra, |
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Invalid, Invalid, Invalid, Matra, |
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Matra, Invalid, Invalid, Matra, |
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Matra, Halant, UnknownForm, UnknownForm, |
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256 |
||
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Other, Invalid, Invalid, Invalid, |
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Invalid, UnknownForm, LengthMark, LengthMark, |
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259 |
Invalid, Invalid, Invalid, Invalid, |
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260 |
Consonant, Consonant, Invalid, Consonant, |
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261 |
||
262 |
IndependentVowel, IndependentVowel, Invalid, Invalid, |
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263 |
Invalid, Invalid, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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266 |
||
267 |
Other, Consonant, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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Other, Other, Other, Other, |
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271 |
||
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//Tamil |
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273 |
Invalid, Invalid, VowelMark, Other, |
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274 |
Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
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275 |
IndependentVowel, IndependentVowel, IndependentVowel, Invalid, |
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276 |
Invalid, Invalid, IndependentVowel, IndependentVowel, |
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277 |
||
278 |
IndependentVowel, Invalid, IndependentVowel, IndependentVowel, |
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279 |
IndependentVowel, Consonant, Invalid, Invalid, |
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280 |
Invalid, Consonant, Consonant, Invalid, |
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281 |
Consonant, Invalid, Consonant, Consonant, |
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282 |
||
283 |
Invalid, Invalid, Invalid, Consonant, |
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284 |
Consonant, Invalid, Invalid, Invalid, |
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285 |
Consonant, Consonant, Consonant, Invalid, |
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286 |
Invalid, Invalid, Consonant, Consonant, |
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287 |
||
288 |
Consonant, Consonant, Consonant, Consonant, |
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289 |
Consonant, Consonant, Consonant, Consonant, |
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290 |
Consonant, Consonant, UnknownForm, UnknownForm, |
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291 |
Invalid, Invalid, Matra, Matra, |
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292 |
||
293 |
Matra, Matra, Matra, Invalid, |
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294 |
Invalid, Invalid, Matra, Matra, |
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295 |
Matra, Invalid, Matra, Matra, |
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296 |
Matra, Halant, Invalid, Invalid, |
|
297 |
||
298 |
Invalid, Invalid, Invalid, Invalid, |
|
299 |
Invalid, Invalid, Invalid, LengthMark, |
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300 |
Invalid, Invalid, Invalid, Invalid, |
|
301 |
Invalid, Invalid, Invalid, Invalid, |
|
302 |
||
303 |
Invalid, Invalid, Invalid, Invalid, |
|
304 |
Invalid, Invalid, Other, Other, |
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305 |
Other, Other, Other, Other, |
|
306 |
Other, Other, Other, Other, |
|
307 |
||
308 |
Other, Other, Other, Other, |
|
309 |
Other, Other, Other, Other, |
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310 |
Other, Other, Other, Other, |
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311 |
Other, Other, Other, Other, |
|
312 |
||
313 |
// Telugu |
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314 |
Invalid, VowelMark, VowelMark, VowelMark, |
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315 |
Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
|
316 |
IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
|
317 |
IndependentVowel, Invalid, IndependentVowel, IndependentVowel, |
|
318 |
||
319 |
IndependentVowel, Invalid, IndependentVowel, IndependentVowel, |
|
320 |
IndependentVowel, Consonant, Consonant, Consonant, |
|
321 |
Consonant, Consonant, Consonant, Consonant, |
|
322 |
Consonant, Consonant, Consonant, Consonant, |
|
323 |
||
324 |
Consonant, Consonant, Consonant, Consonant, |
|
325 |
Consonant, Consonant, Consonant, Consonant, |
|
326 |
Consonant, Invalid, Consonant, Consonant, |
|
327 |
Consonant, Consonant, Consonant, Consonant, |
|
328 |
||
329 |
Consonant, Consonant, Consonant, Consonant, |
|
330 |
Invalid, Consonant, Consonant, Consonant, |
|
331 |
Consonant, Consonant, UnknownForm, UnknownForm, |
|
332 |
Invalid, Invalid, Matra, Matra, |
|
333 |
||
334 |
Matra, Matra, Matra, Matra, |
|
335 |
Matra, Invalid, Matra, Matra, |
|
336 |
Matra, Invalid, Matra, Matra, |
|
337 |
Matra, Halant, Invalid, Invalid, |
|
338 |
||
339 |
Invalid, Invalid, Invalid, Invalid, |
|
340 |
Invalid, LengthMark, Matra, Invalid, |
|
341 |
Invalid, Invalid, Invalid, Invalid, |
|
342 |
Invalid, Invalid, Invalid, Invalid, |
|
343 |
||
344 |
IndependentVowel, IndependentVowel, Invalid, Invalid, |
|
345 |
Invalid, Invalid, Other, Other, |
|
346 |
Other, Other, Other, Other, |
|
347 |
Other, Other, Other, Other, |
|
348 |
||
349 |
Other, Other, Other, Other, |
|
350 |
Other, Other, Other, Other, |
|
351 |
Other, Other, Other, Other, |
|
352 |
Other, Other, Other, Other, |
|
353 |
||
354 |
// Kannada |
|
355 |
Invalid, Invalid, VowelMark, VowelMark, |
|
356 |
Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
|
357 |
IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
|
358 |
IndependentVowel, Invalid, IndependentVowel, IndependentVowel, |
|
359 |
||
360 |
IndependentVowel, Invalid, IndependentVowel, IndependentVowel, |
|
361 |
IndependentVowel, Consonant, Consonant, Consonant, |
|
362 |
Consonant, Consonant, Consonant, Consonant, |
|
363 |
Consonant, Consonant, Consonant, Consonant, |
|
364 |
||
365 |
Consonant, Consonant, Consonant, Consonant, |
|
366 |
Consonant, Consonant, Consonant, Consonant, |
|
367 |
Consonant, Invalid, Consonant, Consonant, |
|
368 |
Consonant, Consonant, Consonant, Consonant, |
|
369 |
||
370 |
Consonant, Consonant, Consonant, Consonant, |
|
371 |
Invalid, Consonant, Consonant, Consonant, |
|
372 |
Consonant, Consonant, UnknownForm, UnknownForm, |
|
373 |
Nukta, Other, Matra, Matra, |
|
374 |
||
375 |
Matra, Matra, Matra, Matra, |
|
376 |
Matra, Invalid, Matra, Matra, |
|
377 |
Matra, Invalid, Matra, Matra, |
|
378 |
Matra, Halant, Invalid, Invalid, |
|
379 |
||
380 |
Invalid, Invalid, Invalid, Invalid, |
|
381 |
Invalid, LengthMark, LengthMark, Invalid, |
|
382 |
Invalid, Invalid, Invalid, Invalid, |
|
383 |
Invalid, Invalid, Consonant, Invalid, |
|
384 |
||
385 |
IndependentVowel, IndependentVowel, VowelMark, VowelMark, |
|
386 |
Invalid, Invalid, Other, Other, |
|
387 |
Other, Other, Other, Other, |
|
388 |
Other, Other, Other, Other, |
|
389 |
||
390 |
Other, Other, Other, Other, |
|
391 |
Other, Other, Other, Other, |
|
392 |
Other, Other, Other, Other, |
|
393 |
Other, Other, Other, Other, |
|
394 |
||
395 |
// Malayalam |
|
396 |
Invalid, Invalid, VowelMark, VowelMark, |
|
397 |
Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
|
398 |
IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
|
399 |
IndependentVowel, Invalid, IndependentVowel, IndependentVowel, |
|
400 |
||
401 |
IndependentVowel, Invalid, IndependentVowel, IndependentVowel, |
|
402 |
IndependentVowel, Consonant, Consonant, Consonant, |
|
403 |
Consonant, Consonant, Consonant, Consonant, |
|
404 |
Consonant, Consonant, Consonant, Consonant, |
|
405 |
||
406 |
Consonant, Consonant, Consonant, Consonant, |
|
407 |
Consonant, Consonant, Consonant, Consonant, |
|
408 |
Consonant, Invalid, Consonant, Consonant, |
|
409 |
Consonant, Consonant, Consonant, Consonant, |
|
410 |
||
411 |
Consonant, Consonant, Consonant, Consonant, |
|
412 |
Consonant, Consonant, Consonant, Consonant, |
|
413 |
Consonant, Consonant, UnknownForm, UnknownForm, |
|
414 |
Invalid, Invalid, Matra, Matra, |
|
415 |
||
416 |
Matra, Matra, Matra, Matra, |
|
417 |
Invalid, Invalid, Matra, Matra, |
|
418 |
Matra, Invalid, Matra, Matra, |
|
419 |
Matra, Halant, Invalid, Invalid, |
|
420 |
||
421 |
Invalid, Invalid, Invalid, Invalid, |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
422 |
Invalid, Invalid, Invalid, Matra, |
| 0 | 423 |
Invalid, Invalid, Invalid, Invalid, |
424 |
Invalid, Invalid, Invalid, Invalid, |
|
425 |
||
426 |
IndependentVowel, IndependentVowel, Invalid, Invalid, |
|
427 |
Invalid, Invalid, Other, Other, |
|
428 |
Other, Other, Other, Other, |
|
429 |
Other, Other, Other, Other, |
|
430 |
||
431 |
Other, Other, Other, Other, |
|
432 |
Other, Other, Other, Other, |
|
433 |
Other, Other, Other, Other, |
|
434 |
Other, Other, Other, Other, |
|
435 |
||
436 |
// Sinhala |
|
437 |
Invalid, Invalid, VowelMark, VowelMark, |
|
438 |
Invalid, IndependentVowel, IndependentVowel, IndependentVowel, |
|
439 |
IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
|
440 |
IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
|
441 |
||
442 |
IndependentVowel, IndependentVowel, IndependentVowel, IndependentVowel, |
|
443 |
IndependentVowel, IndependentVowel, IndependentVowel, Invalid, |
|
444 |
Invalid, Invalid, Consonant, Consonant, |
|
445 |
Consonant, Consonant, Consonant, Consonant, |
|
446 |
||
447 |
Consonant, Consonant, Consonant, Consonant, |
|
448 |
Consonant, Consonant, Consonant, Consonant, |
|
449 |
Consonant, Consonant, Consonant, Consonant, |
|
450 |
Consonant, Consonant, Consonant, Consonant, |
|
451 |
||
452 |
Consonant, Consonant, Invalid, Consonant, |
|
453 |
Consonant, Consonant, Consonant, Consonant, |
|
454 |
Consonant, Consonant, Consonant, Consonant, |
|
455 |
Invalid, Consonant, Invalid, Invalid, |
|
456 |
||
457 |
Consonant, Consonant, Consonant, Consonant, |
|
458 |
Consonant, Consonant, Consonant, Invalid, |
|
459 |
Invalid, Invalid, Halant, Invalid, |
|
460 |
Invalid, Invalid, Invalid, Matra, |
|
461 |
||
462 |
Matra, Matra, Matra, Matra, |
|
463 |
Matra, Invalid, Matra, Invalid, |
|
464 |
Matra, Matra, Matra, Matra, |
|
465 |
Matra, Matra, Matra, Matra, |
|
466 |
||
467 |
Invalid, Invalid, Invalid, Invalid, |
|
468 |
Invalid, Invalid, Invalid, Invalid, |
|
469 |
Invalid, Invalid, Invalid, Invalid, |
|
470 |
Invalid, Invalid, Invalid, Invalid, |
|
471 |
||
472 |
Invalid, Invalid, Matra, Matra, |
|
473 |
Other, Other, Other, Other, |
|
474 |
Other, Other, Other, Other, |
|
475 |
Other, Other, Other, Other, |
|
476 |
}; |
|
477 |
||
478 |
enum Position {
|
|
479 |
None, |
|
480 |
Pre, |
|
481 |
Above, |
|
482 |
Below, |
|
483 |
Post, |
|
484 |
Split, |
|
485 |
Base, |
|
486 |
Reph, |
|
487 |
Vattu, |
|
488 |
Inherit |
|
489 |
}; |
|
490 |
||
491 |
static const unsigned char indicPosition[0xe00-0x900] = {
|
|
492 |
// Devanagari |
|
493 |
None, Above, Above, Post, |
|
494 |
None, None, None, None, |
|
495 |
None, None, None, None, |
|
496 |
None, None, None, None, |
|
497 |
||
498 |
None, None, None, None, |
|
499 |
None, None, None, None, |
|
500 |
None, None, None, None, |
|
501 |
None, None, None, None, |
|
502 |
||
503 |
None, None, None, None, |
|
504 |
None, None, None, None, |
|
505 |
None, None, None, None, |
|
506 |
None, None, None, None, |
|
507 |
||
508 |
Below, None, None, None, |
|
509 |
None, None, None, None, |
|
510 |
None, None, None, None, |
|
511 |
None, None, Post, Pre, |
|
512 |
||
513 |
Post, Below, Below, Below, |
|
514 |
Below, Above, Above, Above, |
|
515 |
Above, Post, Post, Post, |
|
516 |
Post, None, None, None, |
|
517 |
||
518 |
None, Above, Below, Above, |
|
519 |
Above, None, None, None, |
|
520 |
None, None, None, None, |
|
521 |
None, None, None, None, |
|
522 |
||
523 |
None, None, Below, Below, |
|
524 |
None, None, None, None, |
|
525 |
None, None, None, None, |
|
526 |
None, None, None, None, |
|
527 |
||
528 |
None, None, None, None, |
|
529 |
None, None, None, None, |
|
530 |
None, None, None, None, |
|
531 |
None, None, None, None, |
|
532 |
||
533 |
// Bengali |
|
534 |
None, Above, Post, Post, |
|
535 |
None, None, None, None, |
|
536 |
None, None, None, None, |
|
537 |
None, None, None, None, |
|
538 |
||
539 |
None, None, None, None, |
|
540 |
None, None, None, None, |
|
541 |
None, None, None, None, |
|
542 |
None, None, None, None, |
|
543 |
||
544 |
None, None, None, None, |
|
545 |
None, None, None, None, |
|
546 |
None, None, None, None, |
|
547 |
Below, None, None, Post, |
|
548 |
||
549 |
Below, None, None, None, |
|
550 |
None, None, None, None, |
|
551 |
None, None, None, None, |
|
552 |
Below, None, Post, Pre, |
|
553 |
||
554 |
Post, Below, Below, Below, |
|
555 |
Below, None, None, Pre, |
|
556 |
Pre, None, None, Split, |
|
557 |
Split, Below, None, None, |
|
558 |
||
559 |
None, None, None, None, |
|
560 |
None, None, None, Post, |
|
561 |
None, None, None, None, |
|
562 |
None, None, None, None, |
|
563 |
||
564 |
None, None, Below, Below, |
|
565 |
None, None, None, None, |
|
566 |
None, None, None, None, |
|
567 |
None, None, None, None, |
|
568 |
||
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
569 |
Below, None, None, None, |
| 0 | 570 |
None, None, None, None, |
571 |
None, None, None, None, |
|
572 |
None, None, None, None, |
|
573 |
||
574 |
// Gurmukhi |
|
575 |
None, Above, Above, Post, |
|
576 |
None, None, None, None, |
|
577 |
None, None, None, None, |
|
578 |
None, None, None, None, |
|
579 |
||
580 |
None, None, None, None, |
|
581 |
None, None, None, None, |
|
582 |
None, None, None, None, |
|
583 |
None, None, None, None, |
|
584 |
||
585 |
None, None, None, None, |
|
586 |
None, None, None, None, |
|
587 |
None, None, None, None, |
|
588 |
None, None, None, Post, |
|
589 |
||
590 |
Below, None, None, None, |
|
591 |
None, Below, None, None, |
|
592 |
None, Below, None, None, |
|
593 |
Below, None, Post, Pre, |
|
594 |
||
595 |
Post, Below, Below, None, |
|
596 |
None, None, None, Above, |
|
597 |
Above, None, None, Above, |
|
598 |
Above, None, None, None, |
|
599 |
||
600 |
None, None, None, None, |
|
601 |
None, None, None, None, |
|
602 |
None, None, None, None, |
|
603 |
None, None, None, None, |
|
604 |
||
605 |
None, None, None, None, |
|
606 |
None, None, None, None, |
|
607 |
None, None, None, None, |
|
608 |
None, None, None, None, |
|
609 |
||
610 |
Above, Above, None, None, |
|
611 |
None, None, None, None, |
|
612 |
None, None, None, None, |
|
613 |
None, None, None, None, |
|
614 |
||
615 |
// Gujarati |
|
616 |
None, Above, Above, Post, |
|
617 |
None, None, None, None, |
|
618 |
None, None, None, None, |
|
619 |
None, None, None, None, |
|
620 |
||
621 |
None, None, None, None, |
|
622 |
None, None, None, None, |
|
623 |
None, None, None, None, |
|
624 |
None, None, None, None, |
|
625 |
||
626 |
None, None, None, None, |
|
627 |
None, None, None, None, |
|
628 |
None, None, None, None, |
|
629 |
None, None, None, None, |
|
630 |
||
631 |
Below, None, None, None, |
|
632 |
None, None, None, None, |
|
633 |
None, None, None, None, |
|
634 |
None, None, Post, Pre, |
|
635 |
||
636 |
Post, Below, Below, Below, |
|
637 |
Below, Above, None, Above, |
|
638 |
Above, Post, None, Post, |
|
639 |
Post, None, None, None, |
|
640 |
||
641 |
None, None, None, None, |
|
642 |
None, None, None, None, |
|
643 |
None, None, None, None, |
|
644 |
None, None, None, None, |
|
645 |
||
646 |
None, None, Below, Below, |
|
647 |
None, None, None, None, |
|
648 |
None, None, None, None, |
|
649 |
None, None, None, None, |
|
650 |
||
651 |
None, None, None, None, |
|
652 |
None, None, None, None, |
|
653 |
None, None, None, None, |
|
654 |
None, None, None, None, |
|
655 |
||
656 |
// Oriya |
|
657 |
None, Above, Post, Post, |
|
658 |
None, None, None, None, |
|
659 |
None, None, None, None, |
|
660 |
None, None, None, None, |
|
661 |
||
662 |
None, None, None, None, |
|
663 |
None, None, None, None, |
|
664 |
None, None, None, None, |
|
665 |
None, None, None, None, |
|
666 |
||
667 |
None, None, None, None, |
|
668 |
Below, None, None, None, |
|
669 |
Below, None, None, None, |
|
670 |
Below, Below, Below, Post, |
|
671 |
||
672 |
Below, None, Below, Below, |
|
673 |
None, None, None, None, |
|
674 |
None, None, None, None, |
|
675 |
None, None, Post, Above, |
|
676 |
||
677 |
Post, Below, Below, Below, |
|
678 |
None, None, None, Pre, |
|
679 |
Split, None, None, Split, |
|
680 |
Split, None, None, None, |
|
681 |
||
682 |
None, None, None, None, |
|
683 |
None, None, Above, Post, |
|
684 |
None, None, None, None, |
|
685 |
None, None, None, Post, |
|
686 |
||
687 |
None, None, None, None, |
|
688 |
None, None, None, None, |
|
689 |
None, None, None, None, |
|
690 |
None, None, None, None, |
|
691 |
||
692 |
None, Below, None, None, |
|
693 |
None, None, None, None, |
|
694 |
None, None, None, None, |
|
695 |
None, None, None, None, |
|
696 |
||
697 |
// Tamil |
|
698 |
None, None, Above, None, |
|
699 |
None, None, None, None, |
|
700 |
None, None, None, None, |
|
701 |
None, None, None, None, |
|
702 |
||
703 |
None, None, None, None, |
|
704 |
None, None, None, None, |
|
705 |
None, None, None, None, |
|
706 |
None, None, None, None, |
|
707 |
||
708 |
None, None, None, None, |
|
709 |
None, None, None, None, |
|
710 |
None, None, None, None, |
|
711 |
None, None, None, None, |
|
712 |
||
713 |
None, None, None, None, |
|
714 |
None, None, None, None, |
|
715 |
None, None, None, None, |
|
716 |
None, None, Post, Post, |
|
717 |
||
718 |
Above, Below, Below, None, |
|
719 |
None, None, Pre, Pre, |
|
720 |
Pre, None, Split, Split, |
|
721 |
Split, Halant, None, None, |
|
722 |
||
723 |
None, None, None, None, |
|
724 |
None, None, None, Post, |
|
725 |
None, None, None, None, |
|
726 |
None, None, None, None, |
|
727 |
||
728 |
None, None, None, None, |
|
729 |
None, None, None, None, |
|
730 |
None, None, None, None, |
|
731 |
None, None, None, None, |
|
732 |
||
733 |
None, None, None, None, |
|
734 |
None, None, None, None, |
|
735 |
None, None, None, None, |
|
736 |
None, None, None, None, |
|
737 |
||
738 |
// Telugu |
|
739 |
None, Post, Post, Post, |
|
740 |
None, None, None, None, |
|
741 |
None, None, None, None, |
|
742 |
None, None, None, None, |
|
743 |
||
744 |
None, None, None, None, |
|
745 |
None, Below, Below, Below, |
|
746 |
Below, Below, Below, Below, |
|
747 |
Below, Below, Below, Below, |
|
748 |
||
749 |
Below, Below, Below, Below, |
|
750 |
Below, Below, Below, Below, |
|
751 |
Below, None, Below, Below, |
|
752 |
Below, Below, Below, Below, |
|
753 |
||
754 |
Below, None, Below, Below, |
|
755 |
None, Below, Below, Below, |
|
756 |
Below, Below, None, None, |
|
757 |
None, None, Post, Above, |
|
758 |
||
759 |
Above, Post, Post, Post, |
|
760 |
Post, None, Above, Above, |
|
761 |
Split, None, Post, Above, |
|
762 |
Above, Halant, None, None, |
|
763 |
||
764 |
None, None, None, None, |
|
765 |
None, Above, Below, None, |
|
766 |
None, None, None, None, |
|
767 |
None, None, None, None, |
|
768 |
||
769 |
None, None, None, None, |
|
770 |
None, None, None, None, |
|
771 |
None, None, None, None, |
|
772 |
None, None, None, None, |
|
773 |
||
774 |
None, None, None, None, |
|
775 |
None, None, None, None, |
|
776 |
None, None, None, None, |
|
777 |
None, None, None, None, |
|
778 |
||
779 |
// Kannada |
|
780 |
None, None, Post, Post, |
|
781 |
None, None, None, None, |
|
782 |
None, None, None, None, |
|
783 |
None, None, None, None, |
|
784 |
||
785 |
None, None, None, None, |
|
786 |
None, Below, Below, Below, |
|
787 |
Below, Below, Below, Below, |
|
788 |
Below, Below, Below, Below, |
|
789 |
||
790 |
Below, Below, Below, Below, |
|
791 |
Below, Below, Below, Below, |
|
792 |
Below, Below, Below, Below, |
|
793 |
Below, Below, Below, Below, |
|
794 |
||
795 |
Below, None, Below, Below, |
|
796 |
None, Below, Below, Below, |
|
797 |
Below, Below, None, None, |
|
798 |
None, None, Post, Above, |
|
799 |
||
800 |
Split, Post, Post, Post, |
|
801 |
Post, None, Above, Split, |
|
802 |
Split, None, Split, Split, |
|
803 |
Above, Halant, None, None, |
|
804 |
||
805 |
None, None, None, None, |
|
806 |
None, Post, Post, None, |
|
807 |
None, None, None, None, |
|
808 |
None, None, Below, None, |
|
809 |
||
810 |
None, None, Below, Below, |
|
811 |
None, None, None, None, |
|
812 |
None, None, None, None, |
|
813 |
None, None, None, None, |
|
814 |
||
815 |
None, None, None, None, |
|
816 |
None, None, None, None, |
|
817 |
None, None, None, None, |
|
818 |
None, None, None, None, |
|
819 |
||
820 |
// Malayalam |
|
821 |
None, None, Post, Post, |
|
822 |
None, None, None, None, |
|
823 |
None, None, None, None, |
|
824 |
None, None, None, None, |
|
825 |
||
826 |
None, None, None, None, |
|
827 |
None, None, None, None, |
|
828 |
None, None, None, None, |
|
829 |
None, None, None, None, |
|
830 |
||
831 |
None, None, None, None, |
|
832 |
None, None, None, None, |
|
833 |
None, None, None, None, |
|
834 |
None, None, None, Post, |
|
835 |
||
836 |
Post, None, Below, None, |
|
837 |
None, Post, None, None, |
|
838 |
None, None, None, None, |
|
839 |
None, None, Post, Post, |
|
840 |
||
841 |
Post, Post, Post, Post, |
|
842 |
None, None, Pre, Pre, |
|
843 |
Pre, None, Split, Split, |
|
844 |
Split, Halant, None, None, |
|
845 |
||
846 |
None, None, None, None, |
|
847 |
None, None, None, Post, |
|
848 |
None, None, None, None, |
|
849 |
None, None, None, None, |
|
850 |
||
851 |
None, None, None, None, |
|
852 |
None, None, None, None, |
|
853 |
None, None, None, None, |
|
854 |
None, None, None, None, |
|
855 |
||
856 |
None, None, None, None, |
|
857 |
None, None, None, None, |
|
858 |
None, None, None, None, |
|
859 |
None, None, None, None, |
|
860 |
||
861 |
// Sinhala |
|
862 |
None, None, Post, Post, |
|
863 |
None, None, None, None, |
|
864 |
None, None, None, None, |
|
865 |
None, None, None, None, |
|
866 |
||
867 |
None, None, None, None, |
|
868 |
None, None, None, None, |
|
869 |
None, None, None, None, |
|
870 |
None, None, None, None, |
|
871 |
||
872 |
None, None, None, None, |
|
873 |
None, None, None, None, |
|
874 |
None, None, None, None, |
|
875 |
None, None, None, None, |
|
876 |
||
877 |
None, None, None, None, |
|
878 |
None, None, None, None, |
|
879 |
None, None, None, None, |
|
880 |
None, None, None, None, |
|
881 |
||
882 |
None, None, None, None, |
|
883 |
None, None, None, None, |
|
884 |
None, None, None, None, |
|
885 |
None, None, None, Post, |
|
886 |
||
887 |
Post, Post, Above, Above, |
|
888 |
Below, None, Below, None, |
|
889 |
Post, Pre, Split, Pre, |
|
890 |
Split, Split, Split, Post, |
|
891 |
||
892 |
None, None, None, None, |
|
893 |
None, None, None, None, |
|
894 |
None, None, None, None, |
|
895 |
None, None, None, None, |
|
896 |
||
897 |
None, None, Post, Post, |
|
898 |
None, None, None, None, |
|
899 |
None, None, None, None, |
|
900 |
None, None, None, None |
|
901 |
}; |
|
902 |
||
903 |
static inline Form form(unsigned short uc) {
|
|
904 |
if (uc < 0x900 || uc > 0xdff) {
|
|
905 |
if (uc == 0x25cc) |
|
906 |
return Consonant; |
|
907 |
if (uc == 0x200c || uc == 0x200d) |
|
908 |
return Control; |
|
909 |
return Other; |
|
910 |
} |
|
911 |
return (Form)indicForms[uc-0x900]; |
|
912 |
} |
|
913 |
||
914 |
static inline Position indic_position(unsigned short uc) {
|
|
915 |
if (uc < 0x900 || uc > 0xdff) |
|
916 |
return None; |
|
917 |
return (Position) indicPosition[uc-0x900]; |
|
918 |
} |
|
919 |
||
920 |
||
921 |
enum IndicScriptProperties {
|
|
922 |
HasReph = 0x01, |
|
923 |
HasSplit = 0x02 |
|
924 |
}; |
|
925 |
||
926 |
const hb_uint8 scriptProperties[10] = {
|
|
927 |
// Devanagari, |
|
928 |
HasReph, |
|
929 |
// Bengali, |
|
930 |
HasReph|HasSplit, |
|
931 |
// Gurmukhi, |
|
932 |
0, |
|
933 |
// Gujarati, |
|
934 |
HasReph, |
|
935 |
// Oriya, |
|
936 |
HasReph|HasSplit, |
|
937 |
// Tamil, |
|
938 |
HasSplit, |
|
939 |
// Telugu, |
|
940 |
HasSplit, |
|
941 |
// Kannada, |
|
942 |
HasSplit|HasReph, |
|
943 |
// Malayalam, |
|
944 |
HasSplit, |
|
945 |
// Sinhala, |
|
946 |
HasSplit |
|
947 |
}; |
|
948 |
||
949 |
struct IndicOrdering {
|
|
950 |
Form form; |
|
951 |
Position position; |
|
952 |
}; |
|
953 |
||
954 |
static const IndicOrdering devanagari_order [] = {
|
|
955 |
{ Consonant, Below },
|
|
956 |
{ Matra, Below },
|
|
957 |
{ VowelMark, Below },
|
|
958 |
{ StressMark, Below },
|
|
959 |
{ Matra, Above },
|
|
960 |
{ Matra, Post },
|
|
961 |
{ Consonant, Reph },
|
|
962 |
{ VowelMark, Above },
|
|
963 |
{ StressMark, Above },
|
|
964 |
{ VowelMark, Post },
|
|
965 |
{ (Form)0, None }
|
|
966 |
}; |
|
967 |
||
968 |
static const IndicOrdering bengali_order [] = {
|
|
969 |
{ Consonant, Below },
|
|
970 |
{ Matra, Below },
|
|
971 |
{ Matra, Above },
|
|
972 |
{ Consonant, Reph },
|
|
973 |
{ VowelMark, Above },
|
|
974 |
{ Consonant, Post },
|
|
975 |
{ Matra, Post },
|
|
976 |
{ VowelMark, Post },
|
|
977 |
{ (Form)0, None }
|
|
978 |
}; |
|
979 |
||
980 |
static const IndicOrdering gurmukhi_order [] = {
|
|
981 |
{ Consonant, Below },
|
|
982 |
{ Matra, Below },
|
|
983 |
{ Matra, Above },
|
|
984 |
{ Consonant, Post },
|
|
985 |
{ Matra, Post },
|
|
986 |
{ VowelMark, Above },
|
|
987 |
{ (Form)0, None }
|
|
988 |
}; |
|
989 |
||
990 |
static const IndicOrdering tamil_order [] = {
|
|
991 |
{ Matra, Above },
|
|
992 |
{ Matra, Post },
|
|
993 |
{ VowelMark, Post },
|
|
994 |
{ (Form)0, None }
|
|
995 |
}; |
|
996 |
||
997 |
static const IndicOrdering telugu_order [] = {
|
|
998 |
{ Matra, Above },
|
|
999 |
{ Matra, Below },
|
|
1000 |
{ Matra, Post },
|
|
1001 |
{ Consonant, Below },
|
|
1002 |
{ Consonant, Post },
|
|
1003 |
{ VowelMark, Post },
|
|
1004 |
{ (Form)0, None }
|
|
1005 |
}; |
|
1006 |
||
1007 |
static const IndicOrdering kannada_order [] = {
|
|
1008 |
{ Matra, Above },
|
|
1009 |
{ Matra, Post },
|
|
1010 |
{ Consonant, Below },
|
|
1011 |
{ Consonant, Post },
|
|
1012 |
{ LengthMark, Post },
|
|
1013 |
{ Consonant, Reph },
|
|
1014 |
{ VowelMark, Post },
|
|
1015 |
{ (Form)0, None }
|
|
1016 |
}; |
|
1017 |
||
1018 |
static const IndicOrdering malayalam_order [] = {
|
|
1019 |
{ Consonant, Below },
|
|
1020 |
{ Matra, Below },
|
|
1021 |
{ Consonant, Reph },
|
|
1022 |
{ Consonant, Post },
|
|
1023 |
{ Matra, Post },
|
|
1024 |
{ VowelMark, Post },
|
|
1025 |
{ (Form)0, None }
|
|
1026 |
}; |
|
1027 |
||
1028 |
static const IndicOrdering sinhala_order [] = {
|
|
1029 |
{ Matra, Below },
|
|
1030 |
{ Matra, Above },
|
|
1031 |
{ Matra, Post },
|
|
1032 |
{ VowelMark, Post },
|
|
1033 |
{ (Form)0, None }
|
|
1034 |
}; |
|
1035 |
||
1036 |
static const IndicOrdering * const indic_order[] = {
|
|
1037 |
devanagari_order, // Devanagari |
|
1038 |
bengali_order, // Bengali |
|
1039 |
gurmukhi_order, // Gurmukhi |
|
1040 |
devanagari_order, // Gujarati |
|
1041 |
bengali_order, // Oriya |
|
1042 |
tamil_order, // Tamil |
|
1043 |
telugu_order, // Telugu |
|
1044 |
kannada_order, // Kannada |
|
1045 |
malayalam_order, // Malayalam |
|
1046 |
sinhala_order // Sinhala |
|
1047 |
}; |
|
1048 |
||
1049 |
||
1050 |
||
1051 |
// vowel matras that have to be split into two parts. |
|
1052 |
static const unsigned short split_matras[] = {
|
|
|
3
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1053 |
// matra, split1, split2, split3 |
| 0 | 1054 |
|
1055 |
// bengalis |
|
|
3
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1056 |
0x9cb, 0x9c7, 0x9be, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1057 |
0x9cc, 0x9c7, 0x9d7, 0x0, |
| 0 | 1058 |
// oriya |
|
3
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1059 |
0xb48, 0xb47, 0xb56, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1060 |
0xb4b, 0xb47, 0xb3e, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1061 |
0xb4c, 0xb47, 0xb57, 0x0, |
| 0 | 1062 |
// tamil |
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1063 |
0xbca, 0xbc6, 0xbbe, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1064 |
0xbcb, 0xbc7, 0xbbe, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1065 |
0xbcc, 0xbc6, 0xbd7, 0x0, |
| 0 | 1066 |
// telugu |
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1067 |
0xc48, 0xc46, 0xc56, 0x0, |
| 0 | 1068 |
// kannada |
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1069 |
0xcc0, 0xcbf, 0xcd5, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1070 |
0xcc7, 0xcc6, 0xcd5, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1071 |
0xcc8, 0xcc6, 0xcd6, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1072 |
0xcca, 0xcc6, 0xcc2, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1073 |
0xccb, 0xcc6, 0xcc2, 0xcd5, |
| 0 | 1074 |
// malayalam |
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1075 |
0xd4a, 0xd46, 0xd3e, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1076 |
0xd4b, 0xd47, 0xd3e, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1077 |
0xd4c, 0xd46, 0xd57, 0x0, |
| 0 | 1078 |
// sinhala |
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1079 |
0xdda, 0xdd9, 0xdca, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1080 |
0xddc, 0xdd9, 0xdcf, 0x0, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1081 |
0xddd, 0xdd9, 0xdcf, 0xdca, |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1082 |
0xdde, 0xdd9, 0xddf, 0x0, |
| 0 | 1083 |
0xffff |
1084 |
}; |
|
1085 |
||
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1086 |
static inline void splitMatra(unsigned short *reordered, int matra, int &len) |
| 0 | 1087 |
{
|
1088 |
unsigned short matra_uc = reordered[matra]; |
|
1089 |
//qDebug("matra=%d, reordered[matra]=%x", matra, reordered[matra]);
|
|
1090 |
||
1091 |
const unsigned short *split = split_matras; |
|
1092 |
while (split[0] < matra_uc) |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1093 |
split += 4; |
| 0 | 1094 |
|
1095 |
assert(*split == matra_uc); |
|
1096 |
++split; |
|
1097 |
||
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1098 |
int added_chars = split[2] == 0x0 ? 1 : 2; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1099 |
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1100 |
memmove(reordered + matra + added_chars, reordered + matra, (len-matra)*sizeof(unsigned short)); |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1101 |
reordered[matra] = split[0]; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1102 |
reordered[matra+1] = split[1]; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1103 |
if(added_chars == 2) |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1104 |
reordered[matra+2] = split[2]; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1105 |
len += added_chars; |
| 0 | 1106 |
} |
1107 |
||
1108 |
#ifndef NO_OPENTYPE |
|
1109 |
static const HB_OpenTypeFeature indic_features[] = {
|
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1110 |
{ HB_MAKE_TAG('l', 'o', 'c', 'a'), LocaProperty },
|
| 0 | 1111 |
{ HB_MAKE_TAG('c', 'c', 'm', 'p'), CcmpProperty },
|
1112 |
{ HB_MAKE_TAG('i', 'n', 'i', 't'), InitProperty },
|
|
1113 |
{ HB_MAKE_TAG('n', 'u', 'k', 't'), NuktaProperty },
|
|
1114 |
{ HB_MAKE_TAG('a', 'k', 'h', 'n'), AkhantProperty },
|
|
1115 |
{ HB_MAKE_TAG('r', 'p', 'h', 'f'), RephProperty },
|
|
1116 |
{ HB_MAKE_TAG('b', 'l', 'w', 'f'), BelowFormProperty },
|
|
1117 |
{ HB_MAKE_TAG('h', 'a', 'l', 'f'), HalfFormProperty },
|
|
1118 |
{ HB_MAKE_TAG('p', 's', 't', 'f'), PostFormProperty },
|
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1119 |
{ HB_MAKE_TAG('c', 'j', 'c', 't'), ConjunctFormProperty },
|
| 0 | 1120 |
{ HB_MAKE_TAG('v', 'a', 't', 'u'), VattuProperty },
|
1121 |
{ HB_MAKE_TAG('p', 'r', 'e', 's'), PreSubstProperty },
|
|
1122 |
{ HB_MAKE_TAG('b', 'l', 'w', 's'), BelowSubstProperty },
|
|
1123 |
{ HB_MAKE_TAG('a', 'b', 'v', 's'), AboveSubstProperty },
|
|
1124 |
{ HB_MAKE_TAG('p', 's', 't', 's'), PostSubstProperty },
|
|
1125 |
{ HB_MAKE_TAG('h', 'a', 'l', 'n'), HalantProperty },
|
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1126 |
{ HB_MAKE_TAG('c', 'a', 'l', 't'), IndicCaltProperty },
|
| 0 | 1127 |
{ 0, 0 }
|
1128 |
}; |
|
1129 |
#endif |
|
1130 |
||
1131 |
// #define INDIC_DEBUG |
|
1132 |
#ifdef INDIC_DEBUG |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1133 |
#define IDEBUG hb_debug |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1134 |
#include <stdarg.h> |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1135 |
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1136 |
static void hb_debug(const char *msg, ...) |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1137 |
{
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1138 |
va_list ap; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1139 |
va_start(ap, msg); // use variable arg list |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1140 |
vfprintf(stderr, msg, ap); |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1141 |
va_end(ap); |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1142 |
fprintf(stderr, "\n"); |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1143 |
} |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1144 |
|
| 0 | 1145 |
#else |
1146 |
#define IDEBUG if(0) printf |
|
1147 |
#endif |
|
1148 |
||
|
3
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1149 |
#if 0 //def INDIC_DEBUG |
| 0 | 1150 |
static QString propertiesToString(int properties) |
1151 |
{
|
|
1152 |
QString res; |
|
1153 |
properties = ~properties; |
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1154 |
if (properties & LocaProperty) |
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1155 |
res += "Loca "; |
| 0 | 1156 |
if (properties & CcmpProperty) |
1157 |
res += "Ccmp "; |
|
1158 |
if (properties & InitProperty) |
|
1159 |
res += "Init "; |
|
1160 |
if (properties & NuktaProperty) |
|
1161 |
res += "Nukta "; |
|
1162 |
if (properties & AkhantProperty) |
|
1163 |
res += "Akhant "; |
|
1164 |
if (properties & RephProperty) |
|
1165 |
res += "Reph "; |
|
1166 |
if (properties & PreFormProperty) |
|
1167 |
res += "PreForm "; |
|
1168 |
if (properties & BelowFormProperty) |
|
1169 |
res += "BelowForm "; |
|
1170 |
if (properties & AboveFormProperty) |
|
1171 |
res += "AboveForm "; |
|
1172 |
if (properties & HalfFormProperty) |
|
1173 |
res += "HalfForm "; |
|
1174 |
if (properties & PostFormProperty) |
|
1175 |
res += "PostForm "; |
|
|
22
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Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1176 |
if (properties & ConjunctFormProperty) |
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1177 |
res += "PostForm "; |
| 0 | 1178 |
if (properties & VattuProperty) |
1179 |
res += "Vattu "; |
|
1180 |
if (properties & PreSubstProperty) |
|
1181 |
res += "PreSubst "; |
|
1182 |
if (properties & BelowSubstProperty) |
|
1183 |
res += "BelowSubst "; |
|
1184 |
if (properties & AboveSubstProperty) |
|
1185 |
res += "AboveSubst "; |
|
1186 |
if (properties & PostSubstProperty) |
|
1187 |
res += "PostSubst "; |
|
1188 |
if (properties & HalantProperty) |
|
1189 |
res += "Halant "; |
|
1190 |
if (properties & CligProperty) |
|
1191 |
res += "Clig "; |
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1192 |
if (properties & IndicCaltProperty) |
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1193 |
res += "Calt "; |
| 0 | 1194 |
return res; |
1195 |
} |
|
1196 |
#endif |
|
1197 |
||
1198 |
static bool indic_shape_syllable(HB_Bool openType, HB_ShaperItem *item, bool invalid) |
|
1199 |
{
|
|
1200 |
HB_Script script = item->item.script; |
|
1201 |
assert(script >= HB_Script_Devanagari && script <= HB_Script_Sinhala); |
|
1202 |
const unsigned short script_base = 0x0900 + 0x80*(script-HB_Script_Devanagari); |
|
1203 |
const unsigned short ra = script_base + 0x30; |
|
1204 |
const unsigned short halant = script_base + 0x4d; |
|
1205 |
const unsigned short nukta = script_base + 0x3c; |
|
1206 |
bool control = false; |
|
1207 |
||
1208 |
int len = (int)item->item.length; |
|
1209 |
IDEBUG(">>>>> indic shape: from=%d, len=%d invalid=%d", item->item.pos, item->item.length, invalid);
|
|
1210 |
||
1211 |
if ((int)item->num_glyphs < len+4) {
|
|
1212 |
item->num_glyphs = len+4; |
|
1213 |
return false; |
|
1214 |
} |
|
1215 |
||
1216 |
HB_STACKARRAY(HB_UChar16, reordered, len + 4); |
|
1217 |
HB_STACKARRAY(hb_uint8, position, len + 4); |
|
1218 |
||
1219 |
unsigned char properties = scriptProperties[script-HB_Script_Devanagari]; |
|
1220 |
||
1221 |
if (invalid) {
|
|
1222 |
*reordered = 0x25cc; |
|
1223 |
memcpy(reordered+1, item->string + item->item.pos, len*sizeof(HB_UChar16)); |
|
1224 |
len++; |
|
1225 |
} else {
|
|
1226 |
memcpy(reordered, item->string + item->item.pos, len*sizeof(HB_UChar16)); |
|
1227 |
} |
|
1228 |
if (reordered[len-1] == 0x200c) // zero width non joiner |
|
1229 |
len--; |
|
1230 |
||
1231 |
int i; |
|
1232 |
int base = 0; |
|
1233 |
int reph = -1; |
|
1234 |
||
1235 |
#ifdef INDIC_DEBUG |
|
1236 |
IDEBUG("original:");
|
|
1237 |
for (i = 0; i < len; i++) {
|
|
1238 |
IDEBUG(" %d: %4x", i, reordered[i]);
|
|
1239 |
} |
|
1240 |
#endif |
|
1241 |
||
1242 |
if (len != 1) {
|
|
1243 |
HB_UChar16 *uc = reordered; |
|
1244 |
bool beginsWithRa = false; |
|
1245 |
||
1246 |
// Rule 1: find base consonant |
|
1247 |
// |
|
1248 |
// The shaping engine finds the base consonant of the |
|
1249 |
// syllable, using the following algorithm: starting from the |
|
1250 |
// end of the syllable, move backwards until a consonant is |
|
1251 |
// found that does not have a below-base or post-base form |
|
1252 |
// (post-base forms have to follow below-base forms), or |
|
1253 |
// arrive at the first consonant. The consonant stopped at |
|
1254 |
// will be the base. |
|
1255 |
// |
|
1256 |
// * If the syllable starts with Ra + H (in a script that has |
|
1257 |
// 'Reph'), Ra is excluded from candidates for base |
|
1258 |
// consonants. |
|
1259 |
// |
|
1260 |
// * In Kannada and Telugu, the base consonant cannot be |
|
1261 |
// farther than 3 consonants from the end of the syllable. |
|
1262 |
// #### replace the HasReph property by testing if the feature exists in the font! |
|
1263 |
if (form(*uc) == Consonant || (script == HB_Script_Bengali && form(*uc) == IndependentVowel)) {
|
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1264 |
if ((properties & HasReph) && (len > 2) && |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1265 |
(*uc == ra || *uc == 0x9f0) && *(uc+1) == halant) |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1266 |
beginsWithRa = true; |
| 0 | 1267 |
|
1268 |
if (beginsWithRa && form(*(uc+2)) == Control) |
|
1269 |
beginsWithRa = false; |
|
1270 |
||
1271 |
base = (beginsWithRa ? 2 : 0); |
|
1272 |
IDEBUG(" length = %d, beginsWithRa = %d, base=%d", len, beginsWithRa, base);
|
|
1273 |
||
1274 |
int lastConsonant = 0; |
|
1275 |
int matra = -1; |
|
1276 |
// we remember: |
|
1277 |
// * the last consonant since we need it for rule 2 |
|
1278 |
// * the matras position for rule 3 and 4 |
|
1279 |
||
1280 |
// figure out possible base glyphs |
|
1281 |
memset(position, 0, len); |
|
1282 |
if (script == HB_Script_Devanagari || script == HB_Script_Gujarati) {
|
|
1283 |
bool vattu = false; |
|
1284 |
for (i = base; i < len; ++i) {
|
|
1285 |
position[i] = form(uc[i]); |
|
1286 |
if (position[i] == Consonant) {
|
|
1287 |
lastConsonant = i; |
|
1288 |
vattu = (!vattu && uc[i] == ra); |
|
1289 |
if (vattu) {
|
|
1290 |
IDEBUG("excluding vattu glyph at %d from base candidates", i);
|
|
1291 |
position[i] = Vattu; |
|
1292 |
} |
|
1293 |
} else if (position[i] == Matra) {
|
|
1294 |
matra = i; |
|
1295 |
} |
|
1296 |
} |
|
1297 |
} else {
|
|
1298 |
for (i = base; i < len; ++i) {
|
|
1299 |
position[i] = form(uc[i]); |
|
1300 |
if (position[i] == Consonant) |
|
1301 |
lastConsonant = i; |
|
1302 |
else if (matra < 0 && position[i] == Matra) |
|
1303 |
matra = i; |
|
1304 |
} |
|
1305 |
} |
|
1306 |
int skipped = 0; |
|
1307 |
Position pos = Post; |
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1308 |
for (i = len-1; i >= base; i--) {
|
| 0 | 1309 |
if (position[i] != Consonant && (position[i] != Control || script == HB_Script_Kannada)) |
1310 |
continue; |
|
1311 |
||
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1312 |
if (i < len-1 && position[i] == Control && position[i+1] == Consonant) {
|
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1313 |
base = i+1; |
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1314 |
break; |
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1315 |
} |
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1316 |
|
| 0 | 1317 |
Position charPosition = indic_position(uc[i]); |
1318 |
if (pos == Post && charPosition == Post) {
|
|
1319 |
pos = Post; |
|
1320 |
} else if ((pos == Post || pos == Below) && charPosition == Below) {
|
|
1321 |
if (script == HB_Script_Devanagari || script == HB_Script_Gujarati) |
|
1322 |
base = i; |
|
1323 |
pos = Below; |
|
1324 |
} else {
|
|
1325 |
base = i; |
|
1326 |
break; |
|
1327 |
} |
|
1328 |
if (skipped == 2 && (script == HB_Script_Kannada || script == HB_Script_Telugu)) {
|
|
1329 |
base = i; |
|
1330 |
break; |
|
1331 |
} |
|
1332 |
++skipped; |
|
1333 |
} |
|
1334 |
||
1335 |
IDEBUG(" base consonant at %d skipped=%d, lastConsonant=%d", base, skipped, lastConsonant);
|
|
1336 |
||
1337 |
// Rule 2: |
|
1338 |
// |
|
1339 |
// If the base consonant is not the last one, Uniscribe |
|
1340 |
// moves the halant from the base consonant to the last |
|
1341 |
// one. |
|
1342 |
if (lastConsonant > base) {
|
|
1343 |
int halantPos = 0; |
|
1344 |
if (uc[base+1] == halant) |
|
1345 |
halantPos = base + 1; |
|
1346 |
else if (uc[base+1] == nukta && uc[base+2] == halant) |
|
1347 |
halantPos = base + 2; |
|
1348 |
if (halantPos > 0) {
|
|
1349 |
IDEBUG(" moving halant from %d to %d!", base+1, lastConsonant);
|
|
1350 |
for (i = halantPos; i < lastConsonant; i++) |
|
1351 |
uc[i] = uc[i+1]; |
|
1352 |
uc[lastConsonant] = halant; |
|
1353 |
} |
|
1354 |
} |
|
1355 |
||
1356 |
// Rule 3: |
|
1357 |
// |
|
1358 |
// If the syllable starts with Ra + H, Uniscribe moves |
|
1359 |
// this combination so that it follows either: |
|
1360 |
||
1361 |
// * the post-base 'matra' (if any) or the base consonant |
|
1362 |
// (in scripts that show similarity to Devanagari, i.e., |
|
1363 |
// Devanagari, Gujarati, Bengali) |
|
1364 |
// * the base consonant (other scripts) |
|
1365 |
// * the end of the syllable (Kannada) |
|
1366 |
||
1367 |
Position matra_position = None; |
|
1368 |
if (matra > 0) |
|
1369 |
matra_position = indic_position(uc[matra]); |
|
1370 |
IDEBUG(" matra at %d with form %d, base=%d", matra, matra_position, base);
|
|
1371 |
||
1372 |
if (beginsWithRa && base != 0) {
|
|
1373 |
int toPos = base+1; |
|
1374 |
if (toPos < len && uc[toPos] == nukta) |
|
1375 |
toPos++; |
|
1376 |
if (toPos < len && uc[toPos] == halant) |
|
1377 |
toPos++; |
|
1378 |
if (toPos < len && uc[toPos] == 0x200d) |
|
1379 |
toPos++; |
|
1380 |
if (toPos < len-1 && uc[toPos] == ra && uc[toPos+1] == halant) |
|
1381 |
toPos += 2; |
|
1382 |
if (script == HB_Script_Devanagari || script == HB_Script_Gujarati || script == HB_Script_Bengali) {
|
|
1383 |
if (matra_position == Post || matra_position == Split) {
|
|
1384 |
toPos = matra+1; |
|
1385 |
matra -= 2; |
|
1386 |
} |
|
1387 |
} else if (script == HB_Script_Kannada) {
|
|
1388 |
toPos = len; |
|
1389 |
matra -= 2; |
|
1390 |
} |
|
1391 |
||
1392 |
IDEBUG("moving leading ra+halant to position %d", toPos);
|
|
1393 |
for (i = 2; i < toPos; i++) |
|
1394 |
uc[i-2] = uc[i]; |
|
1395 |
uc[toPos-2] = ra; |
|
1396 |
uc[toPos-1] = halant; |
|
1397 |
base -= 2; |
|
1398 |
if (properties & HasReph) |
|
1399 |
reph = toPos-2; |
|
1400 |
} |
|
1401 |
||
1402 |
// Rule 4: |
|
1403 |
||
1404 |
// Uniscribe splits two- or three-part matras into their |
|
1405 |
// parts. This splitting is a character-to-character |
|
1406 |
// operation). |
|
1407 |
// |
|
1408 |
// Uniscribe describes some moving operations for these |
|
1409 |
// matras here. For shaping however all pre matras need |
|
1410 |
// to be at the beginning of the syllable, so we just move |
|
1411 |
// them there now. |
|
1412 |
if (matra_position == Split) {
|
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1413 |
splitMatra(uc, matra, len); |
| 0 | 1414 |
// Handle three-part matras (0xccb in Kannada) |
1415 |
matra_position = indic_position(uc[matra]); |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1416 |
} |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1417 |
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1418 |
if (matra_position == Pre) {
|
| 0 | 1419 |
unsigned short m = uc[matra]; |
1420 |
while (matra--) |
|
1421 |
uc[matra+1] = uc[matra]; |
|
1422 |
uc[0] = m; |
|
1423 |
base++; |
|
1424 |
} |
|
1425 |
} |
|
1426 |
||
1427 |
// Rule 5: |
|
1428 |
// |
|
1429 |
// Uniscribe classifies consonants and 'matra' parts as |
|
1430 |
// pre-base, above-base (Reph), below-base or post-base. This |
|
1431 |
// classification exists on the character code level and is |
|
1432 |
// language-dependent, not font-dependent. |
|
1433 |
for (i = 0; i < base; ++i) |
|
1434 |
position[i] = Pre; |
|
1435 |
position[base] = Base; |
|
1436 |
for (i = base+1; i < len; ++i) {
|
|
1437 |
position[i] = indic_position(uc[i]); |
|
1438 |
// #### replace by adjusting table |
|
1439 |
if (uc[i] == nukta || uc[i] == halant) |
|
1440 |
position[i] = Inherit; |
|
1441 |
} |
|
1442 |
if (reph > 0) {
|
|
1443 |
// recalculate reph, it might have changed. |
|
1444 |
for (i = base+1; i < len; ++i) |
|
1445 |
if (uc[i] == ra) |
|
1446 |
reph = i; |
|
1447 |
position[reph] = Reph; |
|
1448 |
position[reph+1] = Inherit; |
|
1449 |
} |
|
1450 |
||
1451 |
// all reordering happens now to the chars after the base |
|
1452 |
int fixed = base+1; |
|
1453 |
if (fixed < len && uc[fixed] == nukta) |
|
1454 |
fixed++; |
|
1455 |
if (fixed < len && uc[fixed] == halant) |
|
1456 |
fixed++; |
|
1457 |
if (fixed < len && uc[fixed] == 0x200d) |
|
1458 |
fixed++; |
|
1459 |
||
1460 |
#ifdef INDIC_DEBUG |
|
1461 |
for (i = fixed; i < len; ++i) |
|
1462 |
IDEBUG("position[%d] = %d, form=%d uc=%x", i, position[i], form(uc[i]), uc[i]);
|
|
1463 |
#endif |
|
1464 |
// we continuosly position the matras and vowel marks and increase the fixed |
|
1465 |
// until we reached the end. |
|
1466 |
const IndicOrdering *finalOrder = indic_order[script-HB_Script_Devanagari]; |
|
1467 |
||
1468 |
IDEBUG(" reordering pass:");
|
|
1469 |
IDEBUG(" base=%d fixed=%d", base, fixed);
|
|
1470 |
int toMove = 0; |
|
1471 |
while (finalOrder[toMove].form && fixed < len-1) {
|
|
1472 |
IDEBUG(" fixed = %d, toMove=%d, moving form %d with pos %d", fixed, toMove, finalOrder[toMove].form, finalOrder[toMove].position);
|
|
1473 |
for (i = fixed; i < len; i++) {
|
|
1474 |
// IDEBUG() << " i=" << i << "uc=" << hex << uc[i] << "form=" << form(uc[i]) |
|
1475 |
// << "position=" << position[i]; |
|
1476 |
if (form(uc[i]) == finalOrder[toMove].form && |
|
1477 |
position[i] == finalOrder[toMove].position) {
|
|
1478 |
// need to move this glyph |
|
1479 |
int to = fixed; |
|
1480 |
if (i < len-1 && position[i+1] == Inherit) {
|
|
1481 |
IDEBUG(" moving two chars from %d to %d", i, to);
|
|
1482 |
unsigned short ch = uc[i]; |
|
1483 |
unsigned short ch2 = uc[i+1]; |
|
1484 |
unsigned char pos = position[i]; |
|
1485 |
for (int j = i+1; j > to+1; j--) {
|
|
1486 |
uc[j] = uc[j-2]; |
|
1487 |
position[j] = position[j-2]; |
|
1488 |
} |
|
1489 |
uc[to] = ch; |
|
1490 |
uc[to+1] = ch2; |
|
1491 |
position[to] = pos; |
|
1492 |
position[to+1] = pos; |
|
1493 |
fixed += 2; |
|
1494 |
} else {
|
|
1495 |
IDEBUG(" moving one char from %d to %d", i, to);
|
|
1496 |
unsigned short ch = uc[i]; |
|
1497 |
unsigned char pos = position[i]; |
|
1498 |
for (int j = i; j > to; j--) {
|
|
1499 |
uc[j] = uc[j-1]; |
|
1500 |
position[j] = position[j-1]; |
|
1501 |
} |
|
1502 |
uc[to] = ch; |
|
1503 |
position[to] = pos; |
|
1504 |
fixed++; |
|
1505 |
} |
|
1506 |
} |
|
1507 |
} |
|
1508 |
toMove++; |
|
1509 |
} |
|
1510 |
||
1511 |
} |
|
1512 |
||
1513 |
if (reph > 0) {
|
|
1514 |
// recalculate reph, it might have changed. |
|
1515 |
for (i = base+1; i < len; ++i) |
|
1516 |
if (reordered[i] == ra) |
|
1517 |
reph = i; |
|
1518 |
} |
|
1519 |
||
1520 |
#ifndef NO_OPENTYPE |
|
1521 |
const int availableGlyphs = item->num_glyphs; |
|
1522 |
#endif |
|
1523 |
if (!item->font->klass->convertStringToGlyphIndices(item->font, |
|
1524 |
reordered, len, |
|
1525 |
item->glyphs, &item->num_glyphs, |
|
1526 |
item->item.bidiLevel % 2)) |
|
1527 |
goto error; |
|
1528 |
||
1529 |
||
1530 |
IDEBUG(" base=%d, reph=%d", base, reph);
|
|
1531 |
IDEBUG("reordered:");
|
|
1532 |
for (i = 0; i < len; i++) {
|
|
1533 |
item->attributes[i].mark = false; |
|
1534 |
item->attributes[i].clusterStart = false; |
|
1535 |
item->attributes[i].justification = 0; |
|
1536 |
item->attributes[i].zeroWidth = false; |
|
1537 |
IDEBUG(" %d: %4x", i, reordered[i]);
|
|
1538 |
} |
|
1539 |
||
1540 |
// now we have the syllable in the right order, and can start running it through open type. |
|
1541 |
||
1542 |
for (i = 0; i < len; ++i) |
|
1543 |
control |= (form(reordered[i]) == Control); |
|
1544 |
||
1545 |
#ifndef NO_OPENTYPE |
|
1546 |
if (openType) {
|
|
1547 |
||
1548 |
// we need to keep track of where the base glyph is for some |
|
1549 |
// scripts and use the cluster feature for this. This |
|
1550 |
// also means we have to correct the logCluster output from |
|
1551 |
// the open type engine manually afterwards. for indic this |
|
1552 |
// is rather simple, as all chars just point to the first |
|
1553 |
// glyph in the syllable. |
|
1554 |
HB_STACKARRAY(unsigned short, clusters, len); |
|
1555 |
HB_STACKARRAY(unsigned int, properties, len); |
|
1556 |
||
1557 |
for (i = 0; i < len; ++i) |
|
1558 |
clusters[i] = i; |
|
1559 |
||
1560 |
// features we should always apply |
|
1561 |
for (i = 0; i < len; ++i) |
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1562 |
properties[i] = ~(LocaProperty |
|
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1563 |
| CcmpProperty |
| 0 | 1564 |
| NuktaProperty |
1565 |
| VattuProperty |
|
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1566 |
| ConjunctFormProperty |
| 0 | 1567 |
| PreSubstProperty |
1568 |
| BelowSubstProperty |
|
1569 |
| AboveSubstProperty |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1570 |
| PostSubstProperty |
| 0 | 1571 |
| HalantProperty |
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1572 |
| IndicCaltProperty |
| 0 | 1573 |
| PositioningProperties); |
1574 |
||
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1575 |
// Loca always applies |
| 0 | 1576 |
// Ccmp always applies |
1577 |
// Init |
|
1578 |
if (item->item.pos == 0 |
|
1579 |
|| !(isLetter(item->string[item->item.pos-1]) || isMark(item->string[item->item.pos-1]))) |
|
1580 |
properties[0] &= ~InitProperty; |
|
1581 |
||
1582 |
// Nukta always applies |
|
1583 |
// Akhant |
|
1584 |
for (i = 0; i <= base; ++i) |
|
1585 |
properties[i] &= ~AkhantProperty; |
|
1586 |
// Reph |
|
1587 |
if (reph >= 0) {
|
|
1588 |
properties[reph] &= ~RephProperty; |
|
1589 |
properties[reph+1] &= ~RephProperty; |
|
1590 |
} |
|
1591 |
// BelowForm |
|
1592 |
for (i = base+1; i < len; ++i) |
|
1593 |
properties[i] &= ~BelowFormProperty; |
|
1594 |
||
1595 |
if (script == HB_Script_Devanagari || script == HB_Script_Gujarati) {
|
|
1596 |
// vattu glyphs need this aswell |
|
1597 |
bool vattu = false; |
|
1598 |
for (i = base-2; i > 1; --i) {
|
|
1599 |
if (form(reordered[i]) == Consonant) {
|
|
1600 |
vattu = (!vattu && reordered[i] == ra); |
|
1601 |
if (vattu) {
|
|
1602 |
IDEBUG("forming vattu ligature at %d", i);
|
|
1603 |
properties[i] &= ~BelowFormProperty; |
|
1604 |
properties[i+1] &= ~BelowFormProperty; |
|
1605 |
} |
|
1606 |
} |
|
1607 |
} |
|
1608 |
} |
|
1609 |
// HalfFormProperty |
|
1610 |
for (i = 0; i < base; ++i) |
|
1611 |
properties[i] &= ~HalfFormProperty; |
|
1612 |
if (control) {
|
|
1613 |
for (i = 2; i < len; ++i) {
|
|
1614 |
if (reordered[i] == 0x200d /* ZWJ */) {
|
|
1615 |
properties[i-1] &= ~HalfFormProperty; |
|
1616 |
properties[i-2] &= ~HalfFormProperty; |
|
1617 |
} else if (reordered[i] == 0x200c /* ZWNJ */) {
|
|
1618 |
properties[i-1] &= ~HalfFormProperty; |
|
1619 |
properties[i-2] &= ~HalfFormProperty; |
|
1620 |
} |
|
1621 |
} |
|
1622 |
} |
|
1623 |
// PostFormProperty |
|
1624 |
for (i = base+1; i < len; ++i) |
|
1625 |
properties[i] &= ~PostFormProperty; |
|
1626 |
// vattu always applies |
|
1627 |
// pres always applies |
|
1628 |
// blws always applies |
|
1629 |
// abvs always applies |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1630 |
// psts always applies |
| 0 | 1631 |
// halant always applies |
|
22
79de32ba3296
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
3
diff
changeset
|
1632 |
// calt always applies |
| 0 | 1633 |
|
1634 |
#ifdef INDIC_DEBUG |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1635 |
// {
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1636 |
// IDEBUG("OT properties:");
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1637 |
// for (int i = 0; i < len; ++i) |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1638 |
// qDebug(" i: %s", ::propertiesToString(properties[i]).toLatin1().data());
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1639 |
// } |
| 0 | 1640 |
#endif |
1641 |
||
1642 |
// initialize |
|
1643 |
item->log_clusters = clusters; |
|
1644 |
HB_OpenTypeShape(item, properties); |
|
1645 |
||
1646 |
int newLen = item->face->buffer->in_length; |
|
1647 |
HB_GlyphItem otl_glyphs = item->face->buffer->in_string; |
|
1648 |
||
1649 |
// move the left matra back to its correct position in malayalam and tamil |
|
1650 |
if ((script == HB_Script_Malayalam || script == HB_Script_Tamil) && (form(reordered[0]) == Matra)) {
|
|
1651 |
// qDebug("reordering matra, len=%d", newLen);
|
|
1652 |
// need to find the base in the shaped string and move the matra there |
|
1653 |
int basePos = 0; |
|
1654 |
while (basePos < newLen && (int)otl_glyphs[basePos].cluster <= base) |
|
1655 |
basePos++; |
|
1656 |
--basePos; |
|
1657 |
if (basePos < newLen && basePos > 1) {
|
|
1658 |
// qDebug("moving prebase matra to position %d in syllable newlen=%d", basePos, newLen);
|
|
1659 |
HB_GlyphItemRec m = otl_glyphs[0]; |
|
1660 |
--basePos; |
|
1661 |
for (i = 0; i < basePos; ++i) |
|
1662 |
otl_glyphs[i] = otl_glyphs[i+1]; |
|
1663 |
otl_glyphs[basePos] = m; |
|
1664 |
} |
|
1665 |
} |
|
1666 |
||
1667 |
HB_Bool positioned = HB_OpenTypePosition(item, availableGlyphs, false); |
|
1668 |
||
1669 |
HB_FREE_STACKARRAY(clusters); |
|
1670 |
HB_FREE_STACKARRAY(properties); |
|
1671 |
||
1672 |
if (!positioned) |
|
1673 |
goto error; |
|
1674 |
||
1675 |
if (control) {
|
|
1676 |
IDEBUG("found a control char in the syllable");
|
|
1677 |
hb_uint32 i = 0, j = 0; |
|
1678 |
while (i < item->num_glyphs) {
|
|
1679 |
if (form(reordered[otl_glyphs[i].cluster]) == Control) {
|
|
1680 |
++i; |
|
1681 |
if (i >= item->num_glyphs) |
|
1682 |
break; |
|
1683 |
} |
|
1684 |
item->glyphs[j] = item->glyphs[i]; |
|
1685 |
item->attributes[j] = item->attributes[i]; |
|
1686 |
++i; |
|
1687 |
++j; |
|
1688 |
} |
|
1689 |
item->num_glyphs = j; |
|
1690 |
} |
|
1691 |
||
1692 |
} else {
|
|
1693 |
HB_HeuristicPosition(item); |
|
1694 |
} |
|
1695 |
#endif // NO_OPENTYPE |
|
1696 |
item->attributes[0].clusterStart = true; |
|
1697 |
||
1698 |
HB_FREE_STACKARRAY(reordered); |
|
1699 |
HB_FREE_STACKARRAY(position); |
|
1700 |
||
1701 |
IDEBUG("<<<<<<");
|
|
1702 |
return true; |
|
1703 |
||
1704 |
error: |
|
1705 |
HB_FREE_STACKARRAY(reordered); |
|
1706 |
HB_FREE_STACKARRAY(position); |
|
1707 |
return false; |
|
1708 |
} |
|
1709 |
||
1710 |
/* syllables are of the form: |
|
1711 |
||
1712 |
(Consonant Nukta? Halant)* Consonant Matra? VowelMark? StressMark? |
|
1713 |
(Consonant Nukta? Halant)* Consonant Halant |
|
1714 |
IndependentVowel VowelMark? StressMark? |
|
1715 |
||
1716 |
We return syllable boundaries on invalid combinations aswell |
|
1717 |
*/ |
|
1718 |
static int indic_nextSyllableBoundary(HB_Script script, const HB_UChar16 *s, int start, int end, bool *invalid) |
|
1719 |
{
|
|
1720 |
*invalid = false; |
|
1721 |
IDEBUG("indic_nextSyllableBoundary: start=%d, end=%d", start, end);
|
|
1722 |
const HB_UChar16 *uc = s+start; |
|
1723 |
||
1724 |
int pos = 0; |
|
1725 |
Form state = form(uc[pos]); |
|
1726 |
IDEBUG("state[%d]=%d (uc=%4x)", pos, state, uc[pos]);
|
|
1727 |
pos++; |
|
1728 |
||
1729 |
if (state != Consonant && state != IndependentVowel) {
|
|
1730 |
if (state != Other) |
|
1731 |
*invalid = true; |
|
1732 |
goto finish; |
|
1733 |
} |
|
1734 |
||
1735 |
while (pos < end - start) {
|
|
1736 |
Form newState = form(uc[pos]); |
|
1737 |
IDEBUG("state[%d]=%d (uc=%4x)", pos, newState, uc[pos]);
|
|
1738 |
switch(newState) {
|
|
1739 |
case Control: |
|
1740 |
newState = state; |
|
1741 |
if (state == Halant && uc[pos] == 0x200d /* ZWJ */) |
|
1742 |
break; |
|
1743 |
// the control character should be the last char in the item |
|
1744 |
++pos; |
|
1745 |
goto finish; |
|
1746 |
case Consonant: |
|
1747 |
if (state == Halant && (script != HB_Script_Sinhala || uc[pos-1] == 0x200d /* ZWJ */)) |
|
1748 |
break; |
|
1749 |
goto finish; |
|
1750 |
case Halant: |
|
1751 |
if (state == Nukta || state == Consonant) |
|
1752 |
break; |
|
1753 |
// Bengali has a special exception allowing the combination Vowel_A/E + Halant + Ya |
|
1754 |
if (script == HB_Script_Bengali && pos == 1 && |
|
1755 |
(uc[0] == 0x0985 || uc[0] == 0x098f)) |
|
1756 |
break; |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1757 |
// Sinhala uses the Halant as a component of certain matras. Allow these, but keep the state on Matra. |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1758 |
if (script == HB_Script_Sinhala && state == Matra) {
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1759 |
++pos; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1760 |
continue; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1761 |
} |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1762 |
if (script == HB_Script_Malayalam && state == Matra && uc[pos-1] == 0x0d41) {
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1763 |
++pos; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1764 |
continue; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1765 |
} |
| 0 | 1766 |
goto finish; |
1767 |
case Nukta: |
|
1768 |
if (state == Consonant) |
|
1769 |
break; |
|
1770 |
goto finish; |
|
1771 |
case StressMark: |
|
1772 |
if (state == VowelMark) |
|
1773 |
break; |
|
1774 |
// fall through |
|
1775 |
case VowelMark: |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1776 |
if (state == Matra || state == LengthMark || state == IndependentVowel) |
| 0 | 1777 |
break; |
1778 |
// fall through |
|
1779 |
case Matra: |
|
1780 |
if (state == Consonant || state == Nukta) |
|
1781 |
break; |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1782 |
if (state == Matra) {
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1783 |
// ### needs proper testing for correct two/three part matras |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1784 |
break; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1785 |
} |
| 0 | 1786 |
// ### not sure if this is correct. If it is, does it apply only to Bengali or should |
1787 |
// it work for all Indic languages? |
|
1788 |
// the combination Independent_A + Vowel Sign AA is allowed. |
|
1789 |
if (script == HB_Script_Bengali && uc[pos] == 0x9be && uc[pos-1] == 0x985) |
|
1790 |
break; |
|
1791 |
if (script == HB_Script_Tamil && state == Matra) {
|
|
1792 |
if (uc[pos-1] == 0x0bc6 && |
|
1793 |
(uc[pos] == 0xbbe || uc[pos] == 0xbd7)) |
|
1794 |
break; |
|
1795 |
if (uc[pos-1] == 0x0bc7 && uc[pos] == 0xbbe) |
|
1796 |
break; |
|
1797 |
} |
|
1798 |
goto finish; |
|
1799 |
||
1800 |
case LengthMark: |
|
|
3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1801 |
if (state == Matra) {
|
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1802 |
// ### needs proper testing for correct two/three part matras |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1803 |
break; |
|
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1804 |
} |
| 0 | 1805 |
case IndependentVowel: |
1806 |
case Invalid: |
|
1807 |
case Other: |
|
1808 |
goto finish; |
|
1809 |
} |
|
1810 |
state = newState; |
|
1811 |
pos++; |
|
1812 |
} |
|
1813 |
finish: |
|
1814 |
return pos+start; |
|
1815 |
} |
|
1816 |
||
1817 |
HB_Bool HB_IndicShape(HB_ShaperItem *item) |
|
1818 |
{
|
|
1819 |
assert(item->item.script >= HB_Script_Devanagari && item->item.script <= HB_Script_Sinhala); |
|
1820 |
||
1821 |
HB_Bool openType = false; |
|
1822 |
#ifndef NO_OPENTYPE |
|
1823 |
openType = HB_SelectScript(item, indic_features); |
|
1824 |
#endif |
|
1825 |
unsigned short *logClusters = item->log_clusters; |
|
1826 |
||
1827 |
HB_ShaperItem syllable = *item; |
|
1828 |
int first_glyph = 0; |
|
1829 |
||
1830 |
int sstart = item->item.pos; |
|
1831 |
int end = sstart + item->item.length; |
|
1832 |
IDEBUG("indic_shape: from %d length %d", item->item.pos, item->item.length);
|
|
1833 |
while (sstart < end) {
|
|
1834 |
bool invalid; |
|
1835 |
int send = indic_nextSyllableBoundary(item->item.script, item->string, sstart, end, &invalid); |
|
1836 |
IDEBUG("syllable from %d, length %d, invalid=%s", sstart, send-sstart,
|
|
1837 |
invalid ? "true" : "false"); |
|
1838 |
syllable.item.pos = sstart; |
|
1839 |
syllable.item.length = send-sstart; |
|
1840 |
syllable.glyphs = item->glyphs + first_glyph; |
|
1841 |
syllable.attributes = item->attributes + first_glyph; |
|
1842 |
syllable.offsets = item->offsets + first_glyph; |
|
1843 |
syllable.advances = item->advances + first_glyph; |
|
1844 |
syllable.num_glyphs = item->num_glyphs - first_glyph; |
|
1845 |
if (!indic_shape_syllable(openType, &syllable, invalid)) {
|
|
1846 |
IDEBUG("syllable shaping failed, syllable requests %d glyphs", syllable.num_glyphs);
|
|
1847 |
item->num_glyphs += syllable.num_glyphs; |
|
1848 |
return false; |
|
1849 |
} |
|
1850 |
// fix logcluster array |
|
1851 |
IDEBUG("syllable:");
|
|
1852 |
hb_uint32 g; |
|
1853 |
for (g = first_glyph; g < first_glyph + syllable.num_glyphs; ++g) |
|
1854 |
IDEBUG(" %d -> glyph %x", g, item->glyphs[g]);
|
|
1855 |
IDEBUG(" logclusters:");
|
|
1856 |
int i; |
|
1857 |
for (i = sstart; i < send; ++i) {
|
|
1858 |
IDEBUG(" %d -> glyph %d", i, first_glyph);
|
|
1859 |
logClusters[i-item->item.pos] = first_glyph; |
|
1860 |
} |
|
1861 |
sstart = send; |
|
1862 |
first_glyph += syllable.num_glyphs; |
|
1863 |
} |
|
1864 |
item->num_glyphs = first_glyph; |
|
1865 |
return true; |
|
1866 |
} |
|
1867 |
||
1868 |
void HB_IndicAttributes(HB_Script script, const HB_UChar16 *text, hb_uint32 from, hb_uint32 len, HB_CharAttributes *attributes) |
|
1869 |
{
|
|
1870 |
int end = from + len; |
|
1871 |
const HB_UChar16 *uc = text + from; |
|
1872 |
attributes += from; |
|
1873 |
hb_uint32 i = 0; |
|
1874 |
while (i < len) {
|
|
1875 |
bool invalid; |
|
1876 |
hb_uint32 boundary = indic_nextSyllableBoundary(script, text, from+i, end, &invalid) - from; |
|
1877 |
attributes[i].charStop = true; |
|
1878 |
||
1879 |
if (boundary > len-1) boundary = len; |
|
1880 |
i++; |
|
1881 |
while (i < boundary) {
|
|
1882 |
attributes[i].charStop = false; |
|
1883 |
++uc; |
|
1884 |
++i; |
|
1885 |
} |
|
1886 |
assert(i == boundary); |
|
1887 |
} |
|
1888 |
||
1889 |
||
1890 |
} |
|
1891 |
||
1892 |