428 lines
12 KiB
C++
428 lines
12 KiB
C++
|
|
#line 1 "hb-ot-shaper-khmer-machine.rl"
|
|
/*
|
|
* Copyright © 2011,2012 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.
|
|
*
|
|
* Google Author(s): Behdad Esfahbod
|
|
*/
|
|
|
|
#ifndef HB_OT_SHAPER_KHMER_MACHINE_HH
|
|
#define HB_OT_SHAPER_KHMER_MACHINE_HH
|
|
|
|
#include "hb.hh"
|
|
|
|
#include "hb-ot-layout.hh"
|
|
#include "hb-ot-shaper-indic.hh"
|
|
|
|
/* buffer var allocations */
|
|
#define khmer_category() ot_shaper_var_u8_category() /* khmer_category_t */
|
|
|
|
using khmer_category_t = unsigned;
|
|
|
|
#define K_Cat(Cat) khmer_syllable_machine_ex_##Cat
|
|
|
|
enum khmer_syllable_type_t {
|
|
khmer_consonant_syllable,
|
|
khmer_broken_cluster,
|
|
khmer_non_khmer_cluster,
|
|
};
|
|
|
|
|
|
#line 52 "hb-ot-shaper-khmer-machine.hh"
|
|
#define khmer_syllable_machine_ex_C 1u
|
|
#define khmer_syllable_machine_ex_DOTTEDCIRCLE 11u
|
|
#define khmer_syllable_machine_ex_H 4u
|
|
#define khmer_syllable_machine_ex_PLACEHOLDER 10u
|
|
#define khmer_syllable_machine_ex_Ra 15u
|
|
#define khmer_syllable_machine_ex_Robatic 25u
|
|
#define khmer_syllable_machine_ex_V 2u
|
|
#define khmer_syllable_machine_ex_VAbv 20u
|
|
#define khmer_syllable_machine_ex_VBlw 21u
|
|
#define khmer_syllable_machine_ex_VPre 22u
|
|
#define khmer_syllable_machine_ex_VPst 23u
|
|
#define khmer_syllable_machine_ex_Xgroup 26u
|
|
#define khmer_syllable_machine_ex_Ygroup 27u
|
|
#define khmer_syllable_machine_ex_ZWJ 6u
|
|
#define khmer_syllable_machine_ex_ZWNJ 5u
|
|
|
|
|
|
#line 70 "hb-ot-shaper-khmer-machine.hh"
|
|
static const unsigned char _khmer_syllable_machine_trans_keys[] = {
|
|
5u, 26u, 5u, 26u, 1u, 15u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u,
|
|
5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 1u, 15u, 5u, 26u, 5u, 26u,
|
|
5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 1u, 27u, 4u, 27u, 1u, 15u,
|
|
4u, 27u, 4u, 27u, 27u, 27u, 4u, 27u, 4u, 27u, 4u, 27u, 4u, 27u, 4u, 27u,
|
|
4u, 27u, 1u, 15u, 4u, 27u, 4u, 27u, 27u, 27u, 4u, 27u, 4u, 27u, 4u, 27u,
|
|
4u, 27u, 4u, 27u, 5u, 26u, 0
|
|
};
|
|
|
|
static const char _khmer_syllable_machine_key_spans[] = {
|
|
22, 22, 15, 22, 22, 22, 22, 22,
|
|
22, 22, 22, 22, 22, 15, 22, 22,
|
|
22, 22, 22, 22, 22, 27, 24, 15,
|
|
24, 24, 1, 24, 24, 24, 24, 24,
|
|
24, 15, 24, 24, 1, 24, 24, 24,
|
|
24, 24, 22
|
|
};
|
|
|
|
static const short _khmer_syllable_machine_index_offsets[] = {
|
|
0, 23, 46, 62, 85, 108, 131, 154,
|
|
177, 200, 223, 246, 269, 292, 308, 331,
|
|
354, 377, 400, 423, 446, 469, 497, 522,
|
|
538, 563, 588, 590, 615, 640, 665, 690,
|
|
715, 740, 756, 781, 806, 808, 833, 858,
|
|
883, 908, 933
|
|
};
|
|
|
|
static const char _khmer_syllable_machine_indicies[] = {
|
|
1, 1, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 2,
|
|
0, 0, 0, 0, 3, 4, 0, 1,
|
|
1, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 4, 0, 5, 5,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 5, 0, 1, 1,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 2, 0, 0,
|
|
0, 0, 0, 4, 0, 6, 6, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 2, 0, 7, 7, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 8, 0, 9, 9, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 2, 0, 0, 0, 0, 0,
|
|
10, 0, 9, 9, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 10,
|
|
0, 11, 11, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
2, 0, 0, 0, 0, 0, 12, 0,
|
|
11, 11, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 12, 0, 1,
|
|
1, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 2, 0,
|
|
0, 0, 0, 13, 4, 0, 15, 15,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 16, 14, 14,
|
|
14, 14, 17, 18, 14, 15, 15, 19,
|
|
19, 19, 19, 19, 19, 19, 19, 19,
|
|
19, 19, 19, 19, 19, 19, 19, 19,
|
|
19, 19, 18, 19, 20, 20, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 20, 14, 15, 15, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 16, 14, 14, 14, 14,
|
|
14, 18, 14, 21, 21, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
16, 14, 22, 22, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 23,
|
|
14, 24, 24, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
16, 14, 14, 14, 14, 14, 25, 14,
|
|
24, 24, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 25, 14, 26,
|
|
26, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 16, 14,
|
|
14, 14, 14, 14, 27, 14, 26, 26,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 14, 14, 14, 14, 14,
|
|
14, 14, 14, 27, 14, 29, 29, 28,
|
|
30, 31, 31, 28, 28, 28, 13, 13,
|
|
28, 28, 28, 29, 28, 28, 28, 28,
|
|
16, 25, 27, 23, 28, 17, 18, 20,
|
|
28, 33, 34, 34, 32, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 2, 10, 12, 8, 32, 13, 4,
|
|
5, 32, 35, 35, 32, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
35, 32, 33, 36, 36, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 32, 2, 10, 12, 8, 32, 3,
|
|
4, 5, 32, 37, 38, 38, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 32, 32, 2, 10, 12, 8, 32,
|
|
32, 4, 5, 32, 5, 32, 37, 6,
|
|
6, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 8, 32, 32, 2, 5, 32, 37,
|
|
7, 7, 32, 32, 32, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 8, 5, 32,
|
|
37, 39, 39, 32, 32, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
2, 32, 32, 8, 32, 32, 10, 5,
|
|
32, 37, 40, 40, 32, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 2, 10, 32, 8, 32, 32, 12,
|
|
5, 32, 33, 38, 38, 32, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 32, 2, 10, 12, 8, 32, 32,
|
|
4, 5, 32, 33, 38, 38, 32, 32,
|
|
32, 32, 32, 32, 32, 32, 32, 32,
|
|
32, 32, 32, 2, 10, 12, 8, 32,
|
|
3, 4, 5, 32, 42, 42, 41, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 42, 41, 30, 43, 43, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 41, 41, 16, 25, 27, 23,
|
|
41, 17, 18, 20, 41, 44, 45, 45,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 41, 41, 41, 16, 25, 27,
|
|
23, 41, 41, 18, 20, 41, 20, 41,
|
|
44, 21, 21, 41, 41, 41, 41, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 41, 23, 41, 41, 16, 20,
|
|
41, 44, 22, 22, 41, 41, 41, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 23,
|
|
20, 41, 44, 46, 46, 41, 41, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 16, 41, 41, 23, 41, 41,
|
|
25, 20, 41, 44, 47, 47, 41, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 41, 16, 25, 41, 23, 41,
|
|
41, 27, 20, 41, 30, 45, 45, 41,
|
|
41, 41, 41, 41, 41, 41, 41, 41,
|
|
41, 41, 41, 41, 16, 25, 27, 23,
|
|
41, 41, 18, 20, 41, 15, 15, 48,
|
|
48, 48, 48, 48, 48, 48, 48, 48,
|
|
48, 48, 48, 48, 16, 48, 48, 48,
|
|
48, 48, 18, 48, 0
|
|
};
|
|
|
|
static const char _khmer_syllable_machine_trans_targs[] = {
|
|
21, 1, 27, 31, 25, 26, 4, 5,
|
|
28, 7, 29, 9, 30, 32, 21, 12,
|
|
37, 41, 35, 21, 36, 15, 16, 38,
|
|
18, 39, 20, 40, 21, 22, 33, 42,
|
|
21, 23, 10, 24, 0, 2, 3, 6,
|
|
8, 21, 34, 11, 13, 14, 17, 19,
|
|
21
|
|
};
|
|
|
|
static const char _khmer_syllable_machine_trans_actions[] = {
|
|
1, 0, 2, 2, 2, 0, 0, 0,
|
|
2, 0, 2, 0, 2, 2, 3, 0,
|
|
2, 4, 4, 5, 0, 0, 0, 2,
|
|
0, 2, 0, 2, 8, 2, 0, 9,
|
|
10, 0, 0, 2, 0, 0, 0, 0,
|
|
0, 11, 4, 0, 0, 0, 0, 0,
|
|
12
|
|
};
|
|
|
|
static const char _khmer_syllable_machine_to_state_actions[] = {
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 6, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0
|
|
};
|
|
|
|
static const char _khmer_syllable_machine_from_state_actions[] = {
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 7, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0
|
|
};
|
|
|
|
static const short _khmer_syllable_machine_eof_trans[] = {
|
|
1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 15, 20, 15, 15, 15,
|
|
15, 15, 15, 15, 15, 0, 33, 33,
|
|
33, 33, 33, 33, 33, 33, 33, 33,
|
|
33, 42, 42, 42, 42, 42, 42, 42,
|
|
42, 42, 49
|
|
};
|
|
|
|
static const int khmer_syllable_machine_start = 21;
|
|
static const int khmer_syllable_machine_first_final = 21;
|
|
static const int khmer_syllable_machine_error = -1;
|
|
|
|
static const int khmer_syllable_machine_en_main = 21;
|
|
|
|
|
|
#line 53 "hb-ot-shaper-khmer-machine.rl"
|
|
|
|
|
|
|
|
#line 102 "hb-ot-shaper-khmer-machine.rl"
|
|
|
|
|
|
#define found_syllable(syllable_type) \
|
|
HB_STMT_START { \
|
|
if (0) fprintf (stderr, "syllable %d..%d %s\n", ts, te, #syllable_type); \
|
|
for (unsigned int i = ts; i < te; i++) \
|
|
info[i].syllable() = (syllable_serial << 4) | syllable_type; \
|
|
syllable_serial++; \
|
|
if (unlikely (syllable_serial == 16)) syllable_serial = 1; \
|
|
} HB_STMT_END
|
|
|
|
inline void
|
|
find_syllables_khmer (hb_buffer_t *buffer)
|
|
{
|
|
unsigned int p, pe, eof, ts, te, act HB_UNUSED;
|
|
int cs;
|
|
hb_glyph_info_t *info = buffer->info;
|
|
|
|
#line 298 "hb-ot-shaper-khmer-machine.hh"
|
|
{
|
|
cs = khmer_syllable_machine_start;
|
|
ts = 0;
|
|
te = 0;
|
|
act = 0;
|
|
}
|
|
|
|
#line 122 "hb-ot-shaper-khmer-machine.rl"
|
|
|
|
|
|
p = 0;
|
|
pe = eof = buffer->len;
|
|
|
|
unsigned int syllable_serial = 1;
|
|
|
|
#line 314 "hb-ot-shaper-khmer-machine.hh"
|
|
{
|
|
int _slen;
|
|
int _trans;
|
|
const unsigned char *_keys;
|
|
const char *_inds;
|
|
if ( p == pe )
|
|
goto _test_eof;
|
|
_resume:
|
|
switch ( _khmer_syllable_machine_from_state_actions[cs] ) {
|
|
case 7:
|
|
#line 1 "NONE"
|
|
{ts = p;}
|
|
break;
|
|
#line 328 "hb-ot-shaper-khmer-machine.hh"
|
|
}
|
|
|
|
_keys = _khmer_syllable_machine_trans_keys + (cs<<1);
|
|
_inds = _khmer_syllable_machine_indicies + _khmer_syllable_machine_index_offsets[cs];
|
|
|
|
_slen = _khmer_syllable_machine_key_spans[cs];
|
|
_trans = _inds[ _slen > 0 && _keys[0] <=( info[p].khmer_category()) &&
|
|
( info[p].khmer_category()) <= _keys[1] ?
|
|
( info[p].khmer_category()) - _keys[0] : _slen ];
|
|
|
|
_eof_trans:
|
|
cs = _khmer_syllable_machine_trans_targs[_trans];
|
|
|
|
if ( _khmer_syllable_machine_trans_actions[_trans] == 0 )
|
|
goto _again;
|
|
|
|
switch ( _khmer_syllable_machine_trans_actions[_trans] ) {
|
|
case 2:
|
|
#line 1 "NONE"
|
|
{te = p+1;}
|
|
break;
|
|
case 8:
|
|
#line 98 "hb-ot-shaper-khmer-machine.rl"
|
|
{te = p+1;{ found_syllable (khmer_non_khmer_cluster); }}
|
|
break;
|
|
case 10:
|
|
#line 96 "hb-ot-shaper-khmer-machine.rl"
|
|
{te = p;p--;{ found_syllable (khmer_consonant_syllable); }}
|
|
break;
|
|
case 11:
|
|
#line 97 "hb-ot-shaper-khmer-machine.rl"
|
|
{te = p;p--;{ found_syllable (khmer_broken_cluster); buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_BROKEN_SYLLABLE; }}
|
|
break;
|
|
case 12:
|
|
#line 98 "hb-ot-shaper-khmer-machine.rl"
|
|
{te = p;p--;{ found_syllable (khmer_non_khmer_cluster); }}
|
|
break;
|
|
case 1:
|
|
#line 96 "hb-ot-shaper-khmer-machine.rl"
|
|
{{p = ((te))-1;}{ found_syllable (khmer_consonant_syllable); }}
|
|
break;
|
|
case 3:
|
|
#line 97 "hb-ot-shaper-khmer-machine.rl"
|
|
{{p = ((te))-1;}{ found_syllable (khmer_broken_cluster); buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_BROKEN_SYLLABLE; }}
|
|
break;
|
|
case 5:
|
|
#line 1 "NONE"
|
|
{ switch( act ) {
|
|
case 2:
|
|
{{p = ((te))-1;} found_syllable (khmer_broken_cluster); buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_BROKEN_SYLLABLE; }
|
|
break;
|
|
case 3:
|
|
{{p = ((te))-1;} found_syllable (khmer_non_khmer_cluster); }
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
#line 1 "NONE"
|
|
{te = p+1;}
|
|
#line 97 "hb-ot-shaper-khmer-machine.rl"
|
|
{act = 2;}
|
|
break;
|
|
case 9:
|
|
#line 1 "NONE"
|
|
{te = p+1;}
|
|
#line 98 "hb-ot-shaper-khmer-machine.rl"
|
|
{act = 3;}
|
|
break;
|
|
#line 398 "hb-ot-shaper-khmer-machine.hh"
|
|
}
|
|
|
|
_again:
|
|
switch ( _khmer_syllable_machine_to_state_actions[cs] ) {
|
|
case 6:
|
|
#line 1 "NONE"
|
|
{ts = 0;}
|
|
break;
|
|
#line 407 "hb-ot-shaper-khmer-machine.hh"
|
|
}
|
|
|
|
if ( ++p != pe )
|
|
goto _resume;
|
|
_test_eof: {}
|
|
if ( p == eof )
|
|
{
|
|
if ( _khmer_syllable_machine_eof_trans[cs] > 0 ) {
|
|
_trans = _khmer_syllable_machine_eof_trans[cs] - 1;
|
|
goto _eof_trans;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
#line 130 "hb-ot-shaper-khmer-machine.rl"
|
|
|
|
}
|
|
|
|
#undef found_syllable
|
|
|
|
#endif /* HB_OT_SHAPER_KHMER_MACHINE_HH */
|