../3rdparty/harfbuzz/src/harfbuzz-hebrew.c

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1/* -
2 * Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies) -
3 * -
4 * This is part of HarfBuzz, an OpenType Layout engine library. -
5 * -
6 * Permission is hereby granted, without written agreement and without -
7 * license or royalty fees, to use, copy, modify, and distribute this -
8 * software and its documentation for any purpose, provided that the -
9 * above copyright notice and the following two paragraphs appear in -
10 * all copies of this software. -
11 * -
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR -
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES -
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN -
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH -
16 * DAMAGE. -
17 * -
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, -
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND -
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS -
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO -
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. -
23 */ -
24 -
25#include "harfbuzz-shaper.h" -
26#include "harfbuzz-shaper-private.h" -
27#include <assert.h> -
28 -
29/* -
30// Uniscribe also defines dlig for Hebrew, but we leave this out for now, as it's mostly -
31// ligatures one does not want in modern Hebrew (as lam-alef ligatures). -
32*/ -
33#ifndef NO_OPENTYPE -
34static const HB_OpenTypeFeature hebrew_features[] = { -
35 { HB_MAKE_TAG('c', 'c', 'm', 'p'), CcmpProperty }, -
36 {0, 0} -
37}; -
38#endif -
39 -
40/* Hebrew shaping. In the non opentype case we try to use the -
41 presentation forms specified for Hebrew. Especially for the -
42 ligatures with Dagesh this gives much better results than we could -
43 achieve manually. -
44*/ -
45HB_Bool HB_HebrewShape(HB_ShaperItem *shaper_item) -
46{ -
47 enum {
executed (the execution status of this line is deduced): enum {
-
48 Dagesh = 0x5bc,
executed (the execution status of this line is deduced): Dagesh = 0x5bc,
-
49 ShinDot = 0x5c1,
executed (the execution status of this line is deduced): ShinDot = 0x5c1,
-
50 SinDot = 0x5c2,
executed (the execution status of this line is deduced): SinDot = 0x5c2,
-
51 Patah = 0x5b7,
executed (the execution status of this line is deduced): Patah = 0x5b7,
-
52 Qamats = 0x5b8,
executed (the execution status of this line is deduced): Qamats = 0x5b8,
-
53 Holam = 0x5b9,
executed (the execution status of this line is deduced): Holam = 0x5b9,
-
54 Rafe = 0x5bf
executed (the execution status of this line is deduced): Rafe = 0x5bf
-
55 };
executed (the execution status of this line is deduced): };
-
56 -
57 assert(shaper_item->item.script == HB_Script_Hebrew);
executed (the execution status of this line is deduced): ((shaper_item->item.script == HB_Script_Hebrew) ? static_cast<void> (0) : __assert_fail ("shaper_item->item.script == HB_Script_Hebrew", "../3rdparty/harfbuzz/src/harfbuzz-hebrew.c", 57, __PRETTY_FUNCTION__));
-
58 -
59#ifndef NO_OPENTYPE -
60 if (HB_SelectScript(shaper_item, hebrew_features)) {
partially evaluated: HB_SelectScript(shaper_item, hebrew_features)
TRUEFALSE
yes
Evaluation Count:114
no
Evaluation Count:0
0-114
61 -
62 const int availableGlyphs = shaper_item->num_glyphs;
executed (the execution status of this line is deduced): const int availableGlyphs = shaper_item->num_glyphs;
-
63 if (!HB_ConvertStringToGlyphIndices(shaper_item))
partially evaluated: !HB_ConvertStringToGlyphIndices(shaper_item)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:114
0-114
64 return FALSE;
never executed: return 0;
0
65 -
66 HB_HeuristicSetGlyphAttributes(shaper_item);
executed (the execution status of this line is deduced): HB_HeuristicSetGlyphAttributes(shaper_item);
-
67 HB_OpenTypeShape(shaper_item, /*properties*/0);
executed (the execution status of this line is deduced): HB_OpenTypeShape(shaper_item, 0);
-
68 return HB_OpenTypePosition(shaper_item, availableGlyphs, /*doLogClusters*/TRUE);
executed: return HB_OpenTypePosition(shaper_item, availableGlyphs, (!0));
Execution Count:114
114
69 } -
70#endif -
71 -
72 { -
73 const HB_UChar16 *uc = shaper_item->string + shaper_item->item.pos;
never executed (the execution status of this line is deduced): const HB_UChar16 *uc = shaper_item->string + shaper_item->item.pos;
-
74 unsigned short *logClusters = shaper_item->log_clusters;
never executed (the execution status of this line is deduced): unsigned short *logClusters = shaper_item->log_clusters;
-
75 HB_GlyphAttributes *attributes = shaper_item->attributes;
never executed (the execution status of this line is deduced): HB_GlyphAttributes *attributes = shaper_item->attributes;
-
76 -
77 HB_Bool haveGlyphs;
never executed (the execution status of this line is deduced): HB_Bool haveGlyphs;
-
78 int slen = 1;
never executed (the execution status of this line is deduced): int slen = 1;
-
79 int cluster_start = 0;
never executed (the execution status of this line is deduced): int cluster_start = 0;
-
80 hb_uint32 i;
never executed (the execution status of this line is deduced): hb_uint32 i;
-
81 -
82 HB_STACKARRAY(HB_UChar16, shapedChars, 2 * shaper_item->item.length);
never executed: shapedChars = (HB_UChar16 *)malloc((2 * shaper_item->item.length) * sizeof(HB_UChar16));
never evaluated: (2 * shaper_item->item.length) >= 512
0
83 *shapedChars = *uc;
never executed (the execution status of this line is deduced): *shapedChars = *uc;
-
84 logClusters[0] = 0;
never executed (the execution status of this line is deduced): logClusters[0] = 0;
-
85 -
86 for (i = 1; i < shaper_item->item.length; ++i) {
never evaluated: i < shaper_item->item.length
0
87 hb_uint16 base = shapedChars[cluster_start];
never executed (the execution status of this line is deduced): hb_uint16 base = shapedChars[cluster_start];
-
88 hb_uint16 shaped = 0;
never executed (the execution status of this line is deduced): hb_uint16 shaped = 0;
-
89 HB_Bool invalid = FALSE;
never executed (the execution status of this line is deduced): HB_Bool invalid = 0;
-
90 if (uc[i] == Dagesh) {
never evaluated: uc[i] == Dagesh
0
91 if (base >= 0x5d0
never evaluated: base >= 0x5d0
0
92 && base <= 0x5ea
never evaluated: base <= 0x5ea
0
93 && base != 0x5d7
never evaluated: base != 0x5d7
0
94 && base != 0x5dd
never evaluated: base != 0x5dd
0
95 && base != 0x5df
never evaluated: base != 0x5df
0
96 && base != 0x5e2
never evaluated: base != 0x5e2
0
97 && base != 0x5e5) {
never evaluated: base != 0x5e5
0
98 shaped = base - 0x5d0 + 0xfb30;
never executed (the execution status of this line is deduced): shaped = base - 0x5d0 + 0xfb30;
-
99 } else if (base == 0xfb2a || base == 0xfb2b /* Shin with Shin or Sin dot */) {
never executed: }
never evaluated: base == 0xfb2a
never evaluated: base == 0xfb2b
0
100 shaped = base + 2;
never executed (the execution status of this line is deduced): shaped = base + 2;
-
101 } else {
never executed: }
0
102 invalid = TRUE;
never executed (the execution status of this line is deduced): invalid = (!0);
-
103 }
never executed: }
0
104 } else if (uc[i] == ShinDot) {
never evaluated: uc[i] == ShinDot
0
105 if (base == 0x05e9)
never evaluated: base == 0x05e9
0
106 shaped = 0xfb2a;
never executed: shaped = 0xfb2a;
0
107 else if (base == 0xfb49)
never evaluated: base == 0xfb49
0
108 shaped = 0xfb2c;
never executed: shaped = 0xfb2c;
0
109 else -
110 invalid = TRUE;
never executed: invalid = (!0);
0
111 } else if (uc[i] == SinDot) {
never evaluated: uc[i] == SinDot
0
112 if (base == 0x05e9)
never evaluated: base == 0x05e9
0
113 shaped = 0xfb2b;
never executed: shaped = 0xfb2b;
0
114 else if (base == 0xfb49)
never evaluated: base == 0xfb49
0
115 shaped = 0xfb2d;
never executed: shaped = 0xfb2d;
0
116 else -
117 invalid = TRUE;
never executed: invalid = (!0);
0
118 } else if (uc[i] == Patah) {
never evaluated: uc[i] == Patah
0
119 if (base == 0x5d0)
never evaluated: base == 0x5d0
0
120 shaped = 0xfb2e;
never executed: shaped = 0xfb2e;
0
121 } else if (uc[i] == Qamats) {
never executed: }
never evaluated: uc[i] == Qamats
0
122 if (base == 0x5d0)
never evaluated: base == 0x5d0
0
123 shaped = 0xfb2f;
never executed: shaped = 0xfb2f;
0
124 } else if (uc[i] == Holam) {
never executed: }
never evaluated: uc[i] == Holam
0
125 if (base == 0x5d5)
never evaluated: base == 0x5d5
0
126 shaped = 0xfb4b;
never executed: shaped = 0xfb4b;
0
127 } else if (uc[i] == Rafe) {
never executed: }
never evaluated: uc[i] == Rafe
0
128 if (base == 0x5d1)
never evaluated: base == 0x5d1
0
129 shaped = 0xfb4c;
never executed: shaped = 0xfb4c;
0
130 else if (base == 0x5db)
never evaluated: base == 0x5db
0
131 shaped = 0xfb4d;
never executed: shaped = 0xfb4d;
0
132 else if (base == 0x5e4)
never evaluated: base == 0x5e4
0
133 shaped = 0xfb4e;
never executed: shaped = 0xfb4e;
0
134 } -
135 -
136 if (invalid) {
never evaluated: invalid
0
137 shapedChars[slen] = 0x25cc;
never executed (the execution status of this line is deduced): shapedChars[slen] = 0x25cc;
-
138 attributes[slen].clusterStart = TRUE;
never executed (the execution status of this line is deduced): attributes[slen].clusterStart = (!0);
-
139 attributes[slen].mark = FALSE;
never executed (the execution status of this line is deduced): attributes[slen].mark = 0;
-
140 attributes[slen].combiningClass = 0;
never executed (the execution status of this line is deduced): attributes[slen].combiningClass = 0;
-
141 cluster_start = slen;
never executed (the execution status of this line is deduced): cluster_start = slen;
-
142 ++slen;
never executed (the execution status of this line is deduced): ++slen;
-
143 }
never executed: }
0
144 if (shaped) {
never evaluated: shaped
0
145 if (shaper_item->font->klass->canRender(shaper_item->font, (HB_UChar16 *)&shaped, 1)) {
never evaluated: shaper_item->font->klass->canRender(shaper_item->font, (HB_UChar16 *)&shaped, 1)
0
146 shapedChars[cluster_start] = shaped;
never executed (the execution status of this line is deduced): shapedChars[cluster_start] = shaped;
-
147 } else
never executed: }
0
148 shaped = 0;
never executed: shaped = 0;
0
149 } -
150 if (!shaped) {
never evaluated: !shaped
0
151 HB_CharCategory category;
never executed (the execution status of this line is deduced): HB_CharCategory category;
-
152 int cmb;
never executed (the execution status of this line is deduced): int cmb;
-
153 shapedChars[slen] = uc[i];
never executed (the execution status of this line is deduced): shapedChars[slen] = uc[i];
-
154 HB_GetUnicodeCharProperties(uc[i], &category, &cmb);
never executed (the execution status of this line is deduced): HB_GetUnicodeCharProperties(uc[i], &category, &cmb);
-
155 if (category != HB_Mark_NonSpacing) {
never evaluated: category != HB_Mark_NonSpacing
0
156 attributes[slen].clusterStart = TRUE;
never executed (the execution status of this line is deduced): attributes[slen].clusterStart = (!0);
-
157 attributes[slen].mark = FALSE;
never executed (the execution status of this line is deduced): attributes[slen].mark = 0;
-
158 attributes[slen].combiningClass = 0;
never executed (the execution status of this line is deduced): attributes[slen].combiningClass = 0;
-
159 attributes[slen].dontPrint = HB_IsControlChar(uc[i]);
never evaluated: uc[i] >= 0x200b
never evaluated: uc[i] <= 0x200f
never evaluated: uc[i] >= 0x2028
never evaluated: uc[i] <= 0x202f
never evaluated: uc[i] >= 0x206a
never evaluated: uc[i] <= 0x206f
0
160 cluster_start = slen;
never executed (the execution status of this line is deduced): cluster_start = slen;
-
161 } else {
never executed: }
0
162 attributes[slen].clusterStart = FALSE;
never executed (the execution status of this line is deduced): attributes[slen].clusterStart = 0;
-
163 attributes[slen].mark = TRUE;
never executed (the execution status of this line is deduced): attributes[slen].mark = (!0);
-
164 attributes[slen].combiningClass = cmb;
never executed (the execution status of this line is deduced): attributes[slen].combiningClass = cmb;
-
165 }
never executed: }
0
166 ++slen;
never executed (the execution status of this line is deduced): ++slen;
-
167 }
never executed: }
0
168 logClusters[i] = cluster_start;
never executed (the execution status of this line is deduced): logClusters[i] = cluster_start;
-
169 }
never executed: }
0
170 -
171 haveGlyphs = shaper_item->font->klass
never executed (the execution status of this line is deduced): haveGlyphs = shaper_item->font->klass
-
172 ->convertStringToGlyphIndices(shaper_item->font,
never executed (the execution status of this line is deduced): ->convertStringToGlyphIndices(shaper_item->font,
-
173 shapedChars, slen,
never executed (the execution status of this line is deduced): shapedChars, slen,
-
174 shaper_item->glyphs, &shaper_item->num_glyphs,
never executed (the execution status of this line is deduced): shaper_item->glyphs, &shaper_item->num_glyphs,
-
175 shaper_item->item.bidiLevel % 2);
never executed (the execution status of this line is deduced): shaper_item->item.bidiLevel % 2);
-
176 -
177 HB_FREE_STACKARRAY(shapedChars);
never executed: free(shapedChars);
never evaluated: stackshapedChars != shapedChars
0
178 -
179 if (!haveGlyphs)
never evaluated: !haveGlyphs
0
180 return FALSE;
never executed: return 0;
0
181 -
182 HB_HeuristicPosition(shaper_item);
never executed (the execution status of this line is deduced): HB_HeuristicPosition(shaper_item);
-
183 } -
184 -
185 return TRUE;
never executed: return (!0);
0
186} -
187 -
188 -
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