Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/hb-ot-name.cc @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 /*
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2 * Copyright © 2018 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 #include "hb.hh"
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29 #ifndef HB_NO_NAME
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31 #include "hb-ot-name-table.hh"
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32
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33 #include "hb-utf.hh"
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34
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36 /**
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37 * SECTION:hb-ot-name
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38 * @title: hb-ot-name
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39 * @short_description: OpenType font name information
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40 * @include: hb-ot.h
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41 *
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42 * Functions for fetching name strings from OpenType fonts.
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43 **/
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44
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45
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46 /**
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47 * hb_ot_name_list_names:
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48 * @face: font face.
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49 * @num_entries: (out) (optional): number of returned entries.
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50 *
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51 * Enumerates all available name IDs and language combinations. Returned
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52 * array is owned by the @face and should not be modified. It can be
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53 * used as long as @face is alive.
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54 *
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55 * Returns: (transfer none) (array length=num_entries): Array of available name entries.
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56 * Since: 2.1.0
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57 **/
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58 const hb_ot_name_entry_t *
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59 hb_ot_name_list_names (hb_face_t *face,
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60 unsigned int *num_entries /* OUT */)
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61 {
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62 const OT::name_accelerator_t &name = *face->table.name;
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63 if (num_entries) *num_entries = name.names.length;
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64 return (const hb_ot_name_entry_t *) name.names;
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65 }
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66
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67 template <typename utf_t>
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68 static inline unsigned int
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69 hb_ot_name_get_utf (hb_face_t *face,
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70 hb_ot_name_id_t name_id,
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71 hb_language_t language,
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72 unsigned int *text_size /* IN/OUT */,
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73 typename utf_t::codepoint_t *text /* OUT */)
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74 {
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75 const OT::name_accelerator_t &name = *face->table.name;
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76
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77 if (!language)
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78 language = hb_language_from_string ("en", 2);
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80 unsigned int width;
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81 int idx = name.get_index (name_id, language, &width);
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82 if (idx != -1)
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83 {
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84 hb_bytes_t bytes = name.get_name (idx);
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85
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86 if (width == 2) /* UTF16-BE */
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87 return OT::hb_ot_name_convert_utf<hb_utf16_be_t, utf_t> (bytes, text_size, text);
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88
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89 if (width == 1) /* ASCII */
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90 return OT::hb_ot_name_convert_utf<hb_ascii_t, utf_t> (bytes, text_size, text);
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91 }
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92
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93 if (text_size)
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94 {
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95 if (*text_size)
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96 *text = 0;
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97 *text_size = 0;
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98 }
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99 return 0;
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100 }
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101
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102 /**
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103 * hb_ot_name_get_utf8:
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104 * @face: font face.
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105 * @name_id: OpenType name identifier to fetch.
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106 * @language: language to fetch the name for.
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107 * @text_size: (inout) (optional): input size of @text buffer, and output size of
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108 * text written to buffer.
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109 * @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
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110 *
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111 * Fetches a font name from the OpenType 'name' table.
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112 * If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
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113 * Returns string in UTF-8 encoding. A NUL terminator is always written
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114 * for convenience, and isn't included in the output @text_size.
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115 *
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116 * Returns: full length of the requested string, or 0 if not found.
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117 * Since: 2.1.0
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118 **/
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119 unsigned int
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120 hb_ot_name_get_utf8 (hb_face_t *face,
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121 hb_ot_name_id_t name_id,
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122 hb_language_t language,
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123 unsigned int *text_size /* IN/OUT */,
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124 char *text /* OUT */)
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125 {
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126 return hb_ot_name_get_utf<hb_utf8_t> (face, name_id, language, text_size,
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127 (hb_utf8_t::codepoint_t *) text);
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128 }
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129
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130 /**
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131 * hb_ot_name_get_utf16:
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132 * @face: font face.
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133 * @name_id: OpenType name identifier to fetch.
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134 * @language: language to fetch the name for.
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135 * @text_size: (inout) (optional): input size of @text buffer, and output size of
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136 * text written to buffer.
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137 * @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
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138 *
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139 * Fetches a font name from the OpenType 'name' table.
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140 * If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
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141 * Returns string in UTF-16 encoding. A NUL terminator is always written
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142 * for convenience, and isn't included in the output @text_size.
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143 *
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144 * Returns: full length of the requested string, or 0 if not found.
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145 * Since: 2.1.0
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146 **/
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147 unsigned int
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148 hb_ot_name_get_utf16 (hb_face_t *face,
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149 hb_ot_name_id_t name_id,
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150 hb_language_t language,
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151 unsigned int *text_size /* IN/OUT */,
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152 uint16_t *text /* OUT */)
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153 {
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154 return hb_ot_name_get_utf<hb_utf16_t> (face, name_id, language, text_size, text);
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155 }
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156
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157 /**
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158 * hb_ot_name_get_utf32:
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159 * @face: font face.
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160 * @name_id: OpenType name identifier to fetch.
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161 * @language: language to fetch the name for.
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162 * @text_size: (inout) (optional): input size of @text buffer, and output size of
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163 * text written to buffer.
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164 * @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
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165 *
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166 * Fetches a font name from the OpenType 'name' table.
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167 * If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
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168 * Returns string in UTF-32 encoding. A NUL terminator is always written
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169 * for convenience, and isn't included in the output @text_size.
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170 *
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171 * Returns: full length of the requested string, or 0 if not found.
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172 * Since: 2.1.0
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173 **/
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174 unsigned int
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175 hb_ot_name_get_utf32 (hb_face_t *face,
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176 hb_ot_name_id_t name_id,
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177 hb_language_t language,
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178 unsigned int *text_size /* IN/OUT */,
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179 uint32_t *text /* OUT */)
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180 {
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181 return hb_ot_name_get_utf<hb_utf32_t> (face, name_id, language, text_size, text);
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182 }
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183
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184 #endif