Behdad Esfahbod
10 years ago
parent
fd74b939b1
commit
e0eabd7f67
2 changed files with 329 additions and 0 deletions
@ -0,0 +1,169 @@ |
|||||||
|
/* |
||||||
|
* Copyright © 2015 Mozilla Foundation. |
||||||
|
* Copyright © 2015 Google, Inc. |
||||||
|
* |
||||||
|
* This is part of HarfBuzz, a text shaping library. |
||||||
|
* |
||||||
|
* Permission is hereby granted, without written agreement and without |
||||||
|
* license or royalty fees, to use, copy, modify, and distribute this |
||||||
|
* software and its documentation for any purpose, provided that the |
||||||
|
* above copyright notice and the following two paragraphs appear in |
||||||
|
* all copies of this software. |
||||||
|
* |
||||||
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
||||||
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
||||||
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
||||||
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
||||||
|
* DAMAGE. |
||||||
|
* |
||||||
|
* 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 |
||||||
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
||||||
|
* |
||||||
|
* Mozilla Author(s): Jonathan Kew |
||||||
|
* Google Author(s): Behdad Esfahbod |
||||||
|
*/ |
||||||
|
|
||||||
|
#ifndef HB_OT_SHAPE_COMPLEX_USE_MACHINE_HH |
||||||
|
#define HB_OT_SHAPE_COMPLEX_USE_MACHINE_HH |
||||||
|
|
||||||
|
#include "hb-private.hh" |
||||||
|
|
||||||
|
%%{ |
||||||
|
machine use_syllable_machine; |
||||||
|
alphtype unsigned char; |
||||||
|
write data; |
||||||
|
}%% |
||||||
|
|
||||||
|
%%{ |
||||||
|
|
||||||
|
# Same order as enum use_category_t. Not sure how to avoid duplication. |
||||||
|
|
||||||
|
O = 0; # OTHER |
||||||
|
|
||||||
|
B = 1; # BASE |
||||||
|
IV = 2; # BASE_VOWEL |
||||||
|
IND = 3; # BASE_IND |
||||||
|
N = 4; # BASE_NUM |
||||||
|
GB = 5; # BASE_OTHER |
||||||
|
CGJ = 6; # CGJ |
||||||
|
#F = 7; # CONS_FINAL |
||||||
|
FM = 8; # CONS_FINAL_MOD |
||||||
|
#M = 9; # CONS_MED |
||||||
|
#CM = 10; # CONS_MOD |
||||||
|
SUB = 11; # CONS_SUB |
||||||
|
H = 12; # HALANT |
||||||
|
HN = 13; # HALANT_NUM |
||||||
|
ZWNJ = 14; # Zero width non-joiner |
||||||
|
ZWJ = 15; # Zero width joiner |
||||||
|
WJ = 16; # Word joiner |
||||||
|
Rsv = 17; # Reserved characters |
||||||
|
R = 18; # REPHA |
||||||
|
S = 19; # SYM |
||||||
|
#SM = 20; # SYM_MOD |
||||||
|
VS = 21; # VARIATION_SELECTOR |
||||||
|
#V = 22; # VOWEL |
||||||
|
#VM = 23; # VOWEL_MOD |
||||||
|
|
||||||
|
FAbv = 24; # CONS_FINAL_ABOVE |
||||||
|
FBlw = 25; # CONS_FINAL_BELOW |
||||||
|
FPst = 26; # CONS_FINAL_POST |
||||||
|
MAbv = 27; # CONS_MED_ABOVE |
||||||
|
MBlw = 28; # CONS_MED_BELOW |
||||||
|
MPst = 29; # CONS_MED_POST |
||||||
|
MPre = 30; # CONS_MED_PRE |
||||||
|
CMAbv = 31; # CONS_MOD_ABOVE |
||||||
|
CMBlw = 32; # CONS_MOD_BELOW |
||||||
|
VAbv = 33; # VOWEL_ABOVE / VOWEL_ABOVE_BELOW / VOWEL_ABOVE_BELOW_POST / VOWEL_ABOVE_POST |
||||||
|
VBlw = 34; # VOWEL_BELOW / VOWEL_BELOW_POST |
||||||
|
VPst = 35; # VOWEL_POST UIPC = Right |
||||||
|
VPre = 36; # VOWEL_PRE / VOWEL_PRE_ABOVE / VOWEL_PRE_ABOVE_POST / VOWEL_PRE_POST |
||||||
|
VMAbv = 37; # VOWEL_MOD_ABOVE |
||||||
|
VMBlw = 38; # VOWEL_MOD_BELOW |
||||||
|
VMPst = 39; # VOWEL_MOD_POST |
||||||
|
VMPre = 40; # VOWEL_MOD_PRE |
||||||
|
SMAbv = 41; # SYM_MOD_ABOVE |
||||||
|
SMBlw = 42; # SYM_MOD_BELOW |
||||||
|
|
||||||
|
|
||||||
|
consonant_modifiers = CMAbv* CMBlw* ((H B | SUB) VS? CMAbv? CMBlw*)*; |
||||||
|
medial_consonants = MPre? MAbv? MBlw? MPst?; |
||||||
|
dependent_vowels = VPre* VAbv* VBlw* VPst*; |
||||||
|
vowel_modifiers = VMPre* VMAbv* VMBlw* VMPst*; |
||||||
|
final_consonants = FAbv* FBlw* FPst* FM?; |
||||||
|
|
||||||
|
virama_terminated_cluster = |
||||||
|
R? (B | GB | IV) VS? |
||||||
|
consonant_modifiers |
||||||
|
H |
||||||
|
; |
||||||
|
consonant_cluster = |
||||||
|
R? (B | GB) VS? |
||||||
|
consonant_modifiers |
||||||
|
medial_consonants |
||||||
|
dependent_vowels |
||||||
|
vowel_modifiers |
||||||
|
final_consonants |
||||||
|
; |
||||||
|
vowel_cluster = |
||||||
|
R? (IV) VS? |
||||||
|
consonant_modifiers |
||||||
|
medial_consonants |
||||||
|
vowel_modifiers |
||||||
|
final_consonants |
||||||
|
; |
||||||
|
|
||||||
|
number_joiner_terminated_cluster = N VS? (H N VS?)* H; |
||||||
|
numeral_cluster = N VS? (H N VS?)*; |
||||||
|
symbol_cluster = S VS? SMAbv* SMBlw*; |
||||||
|
independent_cluster = (IND | O | Rsv | WJ) VS?; |
||||||
|
|
||||||
|
main := |* |
||||||
|
independent_cluster => { found_syllable (independent_cluster); }; |
||||||
|
virama_terminated_cluster => { found_syllable (virama_terminated_cluster); }; |
||||||
|
consonant_cluster => { found_syllable (consonant_cluster); }; |
||||||
|
vowel_cluster => { found_syllable (vowel_cluster); }; |
||||||
|
number_joiner_terminated_cluster => { found_syllable (number_joiner_terminated_cluster); }; |
||||||
|
numeral_cluster => { found_syllable (numeral_cluster); }; |
||||||
|
symbol_cluster => { found_syllable (symbol_cluster); }; |
||||||
|
*|; |
||||||
|
|
||||||
|
|
||||||
|
}%% |
||||||
|
|
||||||
|
#define found_syllable(syllable_type) \ |
||||||
|
HB_STMT_START { \ |
||||||
|
if (0) fprintf (stderr, "syllable %d..%d %s\n", last, p+1, #syllable_type); \ |
||||||
|
for (unsigned int i = last; i < p+1; i++) \ |
||||||
|
info[i].syllable() = (syllable_serial << 4) | syllable_type; \ |
||||||
|
last = p+1; \ |
||||||
|
syllable_serial++; \ |
||||||
|
if (unlikely (syllable_serial == 16)) syllable_serial = 1; \ |
||||||
|
} HB_STMT_END |
||||||
|
|
||||||
|
static void |
||||||
|
find_syllables (hb_buffer_t *buffer) |
||||||
|
{ |
||||||
|
unsigned int p, pe, eof, ts HB_UNUSED, te HB_UNUSED, act HB_UNUSED; |
||||||
|
int cs; |
||||||
|
hb_glyph_info_t *info = buffer->info; |
||||||
|
%%{ |
||||||
|
write init; |
||||||
|
getkey info[p].use_category(); |
||||||
|
}%% |
||||||
|
|
||||||
|
p = 0; |
||||||
|
pe = eof = buffer->len; |
||||||
|
|
||||||
|
unsigned int last = 0; |
||||||
|
unsigned int syllable_serial = 1; |
||||||
|
%%{ |
||||||
|
write exec; |
||||||
|
}%% |
||||||
|
} |
||||||
|
|
||||||
|
#undef found_syllable |
||||||
|
|
||||||
|
#endif /* HB_OT_SHAPE_COMPLEX_USE_MACHINE_HH */ |
||||||
@ -0,0 +1,160 @@ |
|||||||
|
/*
|
||||||
|
* Copyright © 2015 Mozilla Foundation. |
||||||
|
* Copyright © 2015 Google, Inc. |
||||||
|
* |
||||||
|
* This is part of HarfBuzz, a text shaping library. |
||||||
|
* |
||||||
|
* Permission is hereby granted, without written agreement and without |
||||||
|
* license or royalty fees, to use, copy, modify, and distribute this |
||||||
|
* software and its documentation for any purpose, provided that the |
||||||
|
* above copyright notice and the following two paragraphs appear in |
||||||
|
* all copies of this software. |
||||||
|
* |
||||||
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
||||||
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
||||||
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
||||||
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
||||||
|
* DAMAGE. |
||||||
|
* |
||||||
|
* 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 |
||||||
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
||||||
|
* |
||||||
|
* Mozilla Author(s): Jonathan Kew |
||||||
|
* Google Author(s): Behdad Esfahbod |
||||||
|
*/ |
||||||
|
|
||||||
|
#ifndef HB_OT_SHAPE_COMPLEX_USE_PRIVATE_HH |
||||||
|
#define HB_OT_SHAPE_COMPLEX_USE_PRIVATE_HH |
||||||
|
|
||||||
|
#include "hb-private.hh" |
||||||
|
|
||||||
|
|
||||||
|
#include "hb-ot-shape-complex-private.hh" |
||||||
|
|
||||||
|
|
||||||
|
#define USE_TABLE_ELEMENT_TYPE uint16_t |
||||||
|
|
||||||
|
/* Cateories used in the Universal Shaping Engine spec:
|
||||||
|
* https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm
|
||||||
|
*/ |
||||||
|
/* Note: This enum is duplicated in the -machine.rl source file.
|
||||||
|
* Not sure how to avoid duplication. */ |
||||||
|
enum use_category_t { |
||||||
|
USE_O = 0, /* OTHER */ |
||||||
|
|
||||||
|
USE_B = 1, /* BASE */ |
||||||
|
USE_IV = 2, /* BASE_VOWEL */ |
||||||
|
USE_IND = 3, /* BASE_IND */ |
||||||
|
USE_N = 4, /* BASE_NUM */ |
||||||
|
USE_GB = 5, /* BASE_OTHER */ |
||||||
|
USE_CGJ = 6, /* CGJ */ |
||||||
|
// USE_F = 7, /* CONS_FINAL */
|
||||||
|
USE_FM = 8, /* CONS_FINAL_MOD */ |
||||||
|
// USE_M = 9, /* CONS_MED */
|
||||||
|
// USE_CM = 10, /* CONS_MOD */
|
||||||
|
USE_SUB = 11, /* CONS_SUB */ |
||||||
|
USE_H = 12, /* HALANT */ |
||||||
|
USE_HN = 13, /* HALANT_NUM */ |
||||||
|
USE_ZWNJ = 14, /* Zero width non-joiner */ |
||||||
|
USE_ZWJ = 15, /* Zero width joiner */ |
||||||
|
USE_WJ = 16, /* Word joiner */ |
||||||
|
USE_Rsv = 17, /* Reserved characters */ |
||||||
|
USE_R = 18, /* REPHA */ |
||||||
|
USE_S = 19, /* SYM */ |
||||||
|
// USE_SM = 20, /* SYM_MOD */
|
||||||
|
USE_VS = 21, /* VARIATION_SELECTOR */ |
||||||
|
// USE_V = 22, /* VOWEL */
|
||||||
|
// USE_VM = 23, /* VOWEL_MOD */
|
||||||
|
|
||||||
|
USE_FAbv = 24, /* CONS_FINAL_ABOVE */ |
||||||
|
USE_FBlw = 25, /* CONS_FINAL_BELOW */ |
||||||
|
USE_FPst = 26, /* CONS_FINAL_POST */ |
||||||
|
USE_MAbv = 27, /* CONS_MED_ABOVE */ |
||||||
|
USE_MBlw = 28, /* CONS_MED_BELOW */ |
||||||
|
USE_MPst = 29, /* CONS_MED_POST */ |
||||||
|
USE_MPre = 30, /* CONS_MED_PRE */ |
||||||
|
USE_CMAbv = 31, /* CONS_MOD_ABOVE */ |
||||||
|
USE_CMBlw = 32, /* CONS_MOD_BELOW */ |
||||||
|
USE_VAbv = 33, /* VOWEL_ABOVE / VOWEL_ABOVE_BELOW / VOWEL_ABOVE_BELOW_POST / VOWEL_ABOVE_POST */ |
||||||
|
USE_VBlw = 34, /* VOWEL_BELOW / VOWEL_BELOW_POST */ |
||||||
|
USE_VPst = 35, /* VOWEL_POST UIPC = Right */ |
||||||
|
USE_VPre = 36, /* VOWEL_PRE / VOWEL_PRE_ABOVE / VOWEL_PRE_ABOVE_POST / VOWEL_PRE_POST */ |
||||||
|
USE_VMAbv = 37, /* VOWEL_MOD_ABOVE */ |
||||||
|
USE_VMBlw = 38, /* VOWEL_MOD_BELOW */ |
||||||
|
USE_VMPst = 39, /* VOWEL_MOD_POST */ |
||||||
|
USE_VMPre = 40, /* VOWEL_MOD_PRE */ |
||||||
|
USE_SMAbv = 41, /* SYM_MOD_ABOVE */ |
||||||
|
USE_SMBlw = 42 /* SYM_MOD_BELOW */ |
||||||
|
}; |
||||||
|
|
||||||
|
/* Categories used in IndicSyllabicCategory.txt from UCD. */ |
||||||
|
enum indic_syllabic_category_t |
||||||
|
{ |
||||||
|
INDIC_SYLLABIC_CATEGORY_AVAGRAHA, |
||||||
|
INDIC_SYLLABIC_CATEGORY_BINDU, |
||||||
|
INDIC_SYLLABIC_CATEGORY_BRAHMI_JOINING_NUMBER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CANTILLATION_MARK, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_DEAD, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_FINAL, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_HEAD_LETTER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_KILLER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_MEDIAL, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_PLACEHOLDER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_PRECEDING_REPHA, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_PREFIXED, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_SUBJOINED, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_SUCCEEDING_REPHA, |
||||||
|
INDIC_SYLLABIC_CATEGORY_CONSONANT_WITH_STACKER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_GEMINATION_MARK, |
||||||
|
INDIC_SYLLABIC_CATEGORY_INVISIBLE_STACKER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_JOINER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_MODIFYING_LETTER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_NON_JOINER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_NUKTA, |
||||||
|
INDIC_SYLLABIC_CATEGORY_NUMBER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_NUMBER_JOINER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_OTHER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_PURE_KILLER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_REGISTER_SHIFTER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_SYLLABLE_MODIFIER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_TONE_LETTER, |
||||||
|
INDIC_SYLLABIC_CATEGORY_TONE_MARK, |
||||||
|
INDIC_SYLLABIC_CATEGORY_VIRAMA, |
||||||
|
INDIC_SYLLABIC_CATEGORY_VISARGA, |
||||||
|
INDIC_SYLLABIC_CATEGORY_VOWEL, |
||||||
|
INDIC_SYLLABIC_CATEGORY_VOWEL_DEPENDENT, |
||||||
|
INDIC_SYLLABIC_CATEGORY_VOWEL_INDEPENDENT, |
||||||
|
}; |
||||||
|
|
||||||
|
/* Categories used in IndicPositionalCategory.txt from UCD */ |
||||||
|
enum indic_matra_category_t { |
||||||
|
INDIC_POSITIONAL_CATEGORY_BOTTOM, |
||||||
|
INDIC_POSITIONAL_CATEGORY_BOTTOM_AND_RIGHT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_LEFT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_LEFT_AND_RIGHT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_NOT_APPLICABLE, |
||||||
|
INDIC_POSITIONAL_CATEGORY_OVERSTRUCK, |
||||||
|
INDIC_POSITIONAL_CATEGORY_RIGHT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_TOP, |
||||||
|
INDIC_POSITIONAL_CATEGORY_TOP_AND_BOTTOM, |
||||||
|
INDIC_POSITIONAL_CATEGORY_TOP_AND_BOTTOM_AND_RIGHT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_TOP_AND_LEFT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_TOP_AND_LEFT_AND_RIGHT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_TOP_AND_RIGHT, |
||||||
|
INDIC_POSITIONAL_CATEGORY_VISUAL_ORDER_LEFT, |
||||||
|
}; |
||||||
|
|
||||||
|
/* Note: We use ASSERT_STATIC_EXPR_ZERO() instead of ASSERT_STATIC_EXPR() and the comma operation
|
||||||
|
* because gcc fails to optimize the latter and fills the table in at runtime. */ |
||||||
|
#define USE_COMBINE_CATEGORIES(S,P) \ |
||||||
|
(ASSERT_STATIC_EXPR_ZERO (S < 255 && P < 255) + \
|
||||||
|
((P << 8) | S)) |
||||||
|
|
||||||
|
HB_INTERNAL USE_TABLE_ELEMENT_TYPE |
||||||
|
hb_use_get_categories (hb_codepoint_t u); |
||||||
|
|
||||||
|
#endif /* HB_OT_SHAPE_COMPLEX_USE_PRIVATE_HH */ |
||||||
Loading…
Reference in new issue