Now default shaper is truly no-op.pull/10/merge
Behdad Esfahbod
11 years ago
parent
6300cd7253
commit
f14bb7de63
5 changed files with 251 additions and 162 deletions
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/*
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* Copyright © 2010,2012 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping 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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* Google Author(s): Behdad Esfahbod |
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*/ |
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#include "hb-ot-shape-complex-private.hh" |
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static bool |
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compose_hebrew (const hb_ot_shape_normalize_context_t *c, |
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hb_codepoint_t a, |
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hb_codepoint_t b, |
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hb_codepoint_t *ab) |
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{ |
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/* Hebrew presentation-form shaping.
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* https://bugzilla.mozilla.org/show_bug.cgi?id=728866
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* Hebrew presentation forms with dagesh, for characters 0x05D0..0x05EA; |
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* Note that some letters do not have a dagesh presForm encoded. |
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*/ |
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static const hb_codepoint_t sDageshForms[0x05EA - 0x05D0 + 1] = { |
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0xFB30, /* ALEF */ |
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0xFB31, /* BET */ |
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0xFB32, /* GIMEL */ |
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0xFB33, /* DALET */ |
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0xFB34, /* HE */ |
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0xFB35, /* VAV */ |
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0xFB36, /* ZAYIN */ |
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0x0000, /* HET */ |
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0xFB38, /* TET */ |
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0xFB39, /* YOD */ |
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0xFB3A, /* FINAL KAF */ |
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0xFB3B, /* KAF */ |
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0xFB3C, /* LAMED */ |
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0x0000, /* FINAL MEM */ |
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0xFB3E, /* MEM */ |
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0x0000, /* FINAL NUN */ |
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0xFB40, /* NUN */ |
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0xFB41, /* SAMEKH */ |
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0x0000, /* AYIN */ |
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0xFB43, /* FINAL PE */ |
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0xFB44, /* PE */ |
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0x0000, /* FINAL TSADI */ |
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0xFB46, /* TSADI */ |
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0xFB47, /* QOF */ |
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0xFB48, /* RESH */ |
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0xFB49, /* SHIN */ |
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0xFB4A /* TAV */ |
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}; |
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bool found = c->unicode->compose (a, b, ab); |
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if (!found) |
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{ |
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/* Special-case Hebrew presentation forms that are excluded from
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* standard normalization, but wanted for old fonts. */ |
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switch (b) { |
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case 0x05B4: /* HIRIQ */ |
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if (a == 0x05D9) { /* YOD */ |
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*ab = 0xFB1D; |
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found = true; |
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} |
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break; |
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case 0x05B7: /* patah */ |
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if (a == 0x05F2) { /* YIDDISH YOD YOD */ |
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*ab = 0xFB1F; |
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found = true; |
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} else if (a == 0x05D0) { /* ALEF */ |
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*ab = 0xFB2E; |
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found = true; |
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} |
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break; |
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case 0x05B8: /* QAMATS */ |
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if (a == 0x05D0) { /* ALEF */ |
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*ab = 0xFB2F; |
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found = true; |
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} |
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break; |
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case 0x05B9: /* HOLAM */ |
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if (a == 0x05D5) { /* VAV */ |
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*ab = 0xFB4B; |
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found = true; |
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} |
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break; |
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case 0x05BC: /* DAGESH */ |
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if (a >= 0x05D0 && a <= 0x05EA) { |
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*ab = sDageshForms[a - 0x05D0]; |
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found = (*ab != 0); |
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} else if (a == 0xFB2A) { /* SHIN WITH SHIN DOT */ |
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*ab = 0xFB2C; |
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found = true; |
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} else if (a == 0xFB2B) { /* SHIN WITH SIN DOT */ |
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*ab = 0xFB2D; |
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found = true; |
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} |
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break; |
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case 0x05BF: /* RAFE */ |
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switch (a) { |
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case 0x05D1: /* BET */ |
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*ab = 0xFB4C; |
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found = true; |
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break; |
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case 0x05DB: /* KAF */ |
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*ab = 0xFB4D; |
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found = true; |
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break; |
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case 0x05E4: /* PE */ |
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*ab = 0xFB4E; |
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found = true; |
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break; |
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} |
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break; |
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case 0x05C1: /* SHIN DOT */ |
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if (a == 0x05E9) { /* SHIN */ |
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*ab = 0xFB2A; |
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found = true; |
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} else if (a == 0xFB49) { /* SHIN WITH DAGESH */ |
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*ab = 0xFB2C; |
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found = true; |
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} |
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break; |
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case 0x05C2: /* SIN DOT */ |
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if (a == 0x05E9) { /* SHIN */ |
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*ab = 0xFB2B; |
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found = true; |
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} else if (a == 0xFB49) { /* SHIN WITH DAGESH */ |
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*ab = 0xFB2D; |
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found = true; |
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} |
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break; |
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} |
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} |
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return found; |
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} |
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const hb_ot_complex_shaper_t _hb_ot_complex_shaper_hebrew = |
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{ |
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"hebrew", |
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NULL, /* collect_features */ |
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NULL, /* override_features */ |
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NULL, /* data_create */ |
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NULL, /* data_destroy */ |
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NULL, /* preprocess_text */ |
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HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT, |
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NULL, /* decompose */ |
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compose_hebrew, |
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NULL, /* setup_masks */ |
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HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT, |
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true, /* fallback_position */ |
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}; |
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@ -0,0 +1,61 @@ |
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/*
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* Copyright © 2010,2012 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
||||
* 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 |
||||
* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
||||
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
||||
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
||||
* 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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* Google Author(s): Behdad Esfahbod |
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*/ |
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#include "hb-ot-shape-complex-private.hh" |
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static const hb_tag_t tibetan_features[] = |
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{ |
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HB_TAG('a','b','v','s'), |
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HB_TAG('b','l','w','s'), |
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HB_TAG('a','b','v','m'), |
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HB_TAG('b','l','w','m'), |
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HB_TAG_NONE |
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}; |
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static void |
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collect_features_tibetan (hb_ot_shape_planner_t *plan) |
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{ |
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for (const hb_tag_t *script_features = tibetan_features; script_features && *script_features; script_features++) |
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plan->map.add_global_bool_feature (*script_features); |
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} |
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const hb_ot_complex_shaper_t _hb_ot_complex_shaper_tibetan = |
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{ |
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"default", |
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collect_features_tibetan, |
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NULL, /* override_features */ |
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NULL, /* data_create */ |
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NULL, /* data_destroy */ |
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NULL, /* preprocess_text */ |
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HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT, |
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NULL, /* decompose */ |
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NULL, /* compose */ |
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NULL, /* setup_masks */ |
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HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT, |
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true, /* fallback_position */ |
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}; |
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