Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/hb-ot-layout-jstf-table.hh @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright © 2013 Google, Inc.
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3 *
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4 * This is part of HarfBuzz, a text shaping library.
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5 *
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6 * Permission is hereby granted, without written agreement and without
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7 * license or royalty fees, to use, copy, modify, and distribute this
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8 * software and its documentation for any purpose, provided that the
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9 * above copyright notice and the following two paragraphs appear in
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10 * all copies of this software.
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11 *
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12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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16 * DAMAGE.
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17 *
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18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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23 *
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24 * Google Author(s): Behdad Esfahbod
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25 */
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27 #ifndef HB_OT_LAYOUT_JSTF_TABLE_HH
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28 #define HB_OT_LAYOUT_JSTF_TABLE_HH
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30 #include "hb-open-type.hh"
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31 #include "hb-ot-layout-gpos-table.hh"
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34 namespace OT {
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37 /*
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38 * JstfModList -- Justification Modification List Tables
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39 */
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40
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41 typedef IndexArray JstfModList;
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42
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43
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44 /*
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45 * JstfMax -- Justification Maximum Table
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46 */
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47
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48 typedef List16OfOffset16To<PosLookup> JstfMax;
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49
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50
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51 /*
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52 * JstfPriority -- Justification Priority Table
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53 */
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54
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55 struct JstfPriority
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56 {
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57 bool sanitize (hb_sanitize_context_t *c) const
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58 {
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59 TRACE_SANITIZE (this);
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60 return_trace (c->check_struct (this) &&
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61 shrinkageEnableGSUB.sanitize (c, this) &&
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62 shrinkageDisableGSUB.sanitize (c, this) &&
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63 shrinkageEnableGPOS.sanitize (c, this) &&
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64 shrinkageDisableGPOS.sanitize (c, this) &&
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65 shrinkageJstfMax.sanitize (c, this) &&
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66 extensionEnableGSUB.sanitize (c, this) &&
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67 extensionDisableGSUB.sanitize (c, this) &&
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68 extensionEnableGPOS.sanitize (c, this) &&
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69 extensionDisableGPOS.sanitize (c, this) &&
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70 extensionJstfMax.sanitize (c, this));
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71 }
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72
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73 protected:
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74 Offset16To<JstfModList>
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75 shrinkageEnableGSUB; /* Offset to Shrinkage Enable GSUB
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76 * JstfModList table--from beginning of
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77 * JstfPriority table--may be NULL */
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78 Offset16To<JstfModList>
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79 shrinkageDisableGSUB; /* Offset to Shrinkage Disable GSUB
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80 * JstfModList table--from beginning of
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81 * JstfPriority table--may be NULL */
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82 Offset16To<JstfModList>
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83 shrinkageEnableGPOS; /* Offset to Shrinkage Enable GPOS
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84 * JstfModList table--from beginning of
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85 * JstfPriority table--may be NULL */
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86 Offset16To<JstfModList>
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87 shrinkageDisableGPOS; /* Offset to Shrinkage Disable GPOS
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88 * JstfModList table--from beginning of
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89 * JstfPriority table--may be NULL */
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90 Offset16To<JstfMax>
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91 shrinkageJstfMax; /* Offset to Shrinkage JstfMax table--
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92 * from beginning of JstfPriority table
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93 * --may be NULL */
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94 Offset16To<JstfModList>
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95 extensionEnableGSUB; /* Offset to Extension Enable GSUB
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96 * JstfModList table--from beginning of
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97 * JstfPriority table--may be NULL */
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98 Offset16To<JstfModList>
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99 extensionDisableGSUB; /* Offset to Extension Disable GSUB
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100 * JstfModList table--from beginning of
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101 * JstfPriority table--may be NULL */
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102 Offset16To<JstfModList>
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103 extensionEnableGPOS; /* Offset to Extension Enable GPOS
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104 * JstfModList table--from beginning of
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105 * JstfPriority table--may be NULL */
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106 Offset16To<JstfModList>
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107 extensionDisableGPOS; /* Offset to Extension Disable GPOS
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108 * JstfModList table--from beginning of
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109 * JstfPriority table--may be NULL */
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110 Offset16To<JstfMax>
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111 extensionJstfMax; /* Offset to Extension JstfMax table--
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112 * from beginning of JstfPriority table
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113 * --may be NULL */
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114
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115 public:
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116 DEFINE_SIZE_STATIC (20);
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117 };
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118
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119
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120 /*
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121 * JstfLangSys -- Justification Language System Table
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122 */
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123
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124 struct JstfLangSys : List16OfOffset16To<JstfPriority>
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125 {
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126 bool sanitize (hb_sanitize_context_t *c,
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127 const Record_sanitize_closure_t * = nullptr) const
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128 {
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129 TRACE_SANITIZE (this);
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130 return_trace (List16OfOffset16To<JstfPriority>::sanitize (c));
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131 }
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132 };
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133
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134
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135 /*
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136 * ExtenderGlyphs -- Extender Glyph Table
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137 */
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138
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139 typedef SortedArray16Of<HBGlyphID16> ExtenderGlyphs;
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140
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141
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142 /*
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143 * JstfScript -- The Justification Table
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144 */
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145
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146 struct JstfScript
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147 {
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148 unsigned int get_lang_sys_count () const
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149 { return langSys.len; }
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150 const Tag& get_lang_sys_tag (unsigned int i) const
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151 { return langSys.get_tag (i); }
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152 unsigned int get_lang_sys_tags (unsigned int start_offset,
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153 unsigned int *lang_sys_count /* IN/OUT */,
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154 hb_tag_t *lang_sys_tags /* OUT */) const
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155 { return langSys.get_tags (start_offset, lang_sys_count, lang_sys_tags); }
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156 const JstfLangSys& get_lang_sys (unsigned int i) const
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157 {
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158 if (i == Index::NOT_FOUND_INDEX) return get_default_lang_sys ();
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159 return this+langSys[i].offset;
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160 }
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161 bool find_lang_sys_index (hb_tag_t tag, unsigned int *index) const
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162 { return langSys.find_index (tag, index); }
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163
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164 bool has_default_lang_sys () const { return defaultLangSys != 0; }
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165 const JstfLangSys& get_default_lang_sys () const { return this+defaultLangSys; }
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166
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167 bool sanitize (hb_sanitize_context_t *c,
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168 const Record_sanitize_closure_t * = nullptr) const
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169 {
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170 TRACE_SANITIZE (this);
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171 return_trace (extenderGlyphs.sanitize (c, this) &&
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172 defaultLangSys.sanitize (c, this) &&
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173 langSys.sanitize (c, this));
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174 }
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175
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176 protected:
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177 Offset16To<ExtenderGlyphs>
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178 extenderGlyphs; /* Offset to ExtenderGlyph table--from beginning
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179 * of JstfScript table-may be NULL */
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180 Offset16To<JstfLangSys>
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181 defaultLangSys; /* Offset to DefaultJstfLangSys table--from
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182 * beginning of JstfScript table--may be Null */
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183 RecordArrayOf<JstfLangSys>
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184 langSys; /* Array of JstfLangSysRecords--listed
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185 * alphabetically by LangSysTag */
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186 public:
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187 DEFINE_SIZE_ARRAY (6, langSys);
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188 };
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189
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190
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191 /*
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192 * JSTF -- Justification
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193 * https://docs.microsoft.com/en-us/typography/opentype/spec/jstf
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194 */
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195
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196 struct JSTF
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197 {
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198 static constexpr hb_tag_t tableTag = HB_OT_TAG_JSTF;
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199
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200 unsigned int get_script_count () const
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201 { return scriptList.len; }
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202 const Tag& get_script_tag (unsigned int i) const
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203 { return scriptList.get_tag (i); }
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204 unsigned int get_script_tags (unsigned int start_offset,
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205 unsigned int *script_count /* IN/OUT */,
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206 hb_tag_t *script_tags /* OUT */) const
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207 { return scriptList.get_tags (start_offset, script_count, script_tags); }
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208 const JstfScript& get_script (unsigned int i) const
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209 { return this+scriptList[i].offset; }
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210 bool find_script_index (hb_tag_t tag, unsigned int *index) const
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211 { return scriptList.find_index (tag, index); }
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212
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213 bool sanitize (hb_sanitize_context_t *c) const
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214 {
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215 TRACE_SANITIZE (this);
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216 return_trace (version.sanitize (c) &&
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217 likely (version.major == 1) &&
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218 scriptList.sanitize (c, this));
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219 }
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220
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221 protected:
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222 FixedVersion<>version; /* Version of the JSTF table--initially set
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223 * to 0x00010000u */
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224 RecordArrayOf<JstfScript>
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225 scriptList; /* Array of JstfScripts--listed
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226 * alphabetically by ScriptTag */
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227 public:
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228 DEFINE_SIZE_ARRAY (6, scriptList);
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229 };
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230
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231
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232 } /* namespace OT */
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233
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234
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235 #endif /* HB_OT_LAYOUT_JSTF_TABLE_HH */