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   5 <title>Part II. Reference manual: HarfBuzz Manual</title>
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  22 <div class="part">
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  24 <div><h1 class="title">
  25 <a name="id-1.3"></a>Part II. Reference manual</h1></div>
  26 <div><p class="releaseinfo">
  27         This document is for HarfBuzz 2.3.1
  28 .
  29
  30       </p></div>
  31 </div></div>
  32 <div class="toc">
  33 <p><b>Table of Contents</b></p>
  34 <dl class="toc">
  35 <dt><span class="chapter"><a href="ch09.html">Core API</a></span></dt>
  36 <dd><dl>
  37 <dt>
  38 <span class="refentrytitle"><a href="harfbuzz-hb-blob.html">hb-blob</a></span><span class="refpurpose"> — Binary data containers</span>
  39 </dt>
  40 <dt>
  41 <span class="refentrytitle"><a href="harfbuzz-hb-buffer.html">hb-buffer</a></span><span class="refpurpose"> — Input and output buffers</span>
  42 </dt>
  43 <dt>
  44 <span class="refentrytitle"><a href="harfbuzz-hb-common.html">hb-common</a></span><span class="refpurpose"> — Common data types</span>
  45 </dt>
  46 <dt>
  47 <span class="refentrytitle"><a href="harfbuzz-hb-deprecated.html">hb-deprecated</a></span><span class="refpurpose"> — Deprecated API</span>
  48 </dt>
  49 <dt>
  50 <span class="refentrytitle"><a href="harfbuzz-hb-face.html">hb-face</a></span><span class="refpurpose"> — Font face objects</span>
  51 </dt>
  52 <dt>
  53 <span class="refentrytitle"><a href="harfbuzz-hb-font.html">hb-font</a></span><span class="refpurpose"> — Font objects</span>
  54 </dt>
  55 <dt>
  56 <span class="refentrytitle"><a href="harfbuzz-hb-map.html">hb-map</a></span><span class="refpurpose"> — Object representing integer to integer mapping</span>
  57 </dt>
  58 <dt>
  59 <span class="refentrytitle"><a href="harfbuzz-hb-set.html">hb-set</a></span><span class="refpurpose"> — Object representing a set of integers</span>
  60 </dt>
  61 <dt>
  62 <span class="refentrytitle"><a href="harfbuzz-hb-shape-plan.html">hb-shape-plan</a></span><span class="refpurpose"> — Object representing a shaping plan</span>
  63 </dt>
  64 <dt>
  65 <span class="refentrytitle"><a href="harfbuzz-hb-shape.html">hb-shape</a></span><span class="refpurpose"> — Conversion of text strings into positioned glyphs</span>
  66 </dt>
  67 <dt>
  68 <span class="refentrytitle"><a href="harfbuzz-hb-unicode.html">hb-unicode</a></span><span class="refpurpose"> — Unicode character property access</span>
  69 </dt>
  70 <dt>
  71 <span class="refentrytitle"><a href="harfbuzz-hb-version.html">hb-version</a></span><span class="refpurpose"> — Information about the version of HarfBuzz in use</span>
  72 </dt>
  73 </dl></dd>
  74 <dt><span class="chapter"><a href="ch10.html">OpenType API</a></span></dt>
  75 <dd><dl>
  76 <dt>
  77 <span class="refentrytitle"><a href="harfbuzz-hb-ot-color.html">hb-ot-color</a></span><span class="refpurpose"> — OpenType Color Fonts</span>
  78 </dt>
  79 <dt>
  80 <span class="refentrytitle"><a href="harfbuzz-hb-ot-font.html">hb-ot-font</a></span><span class="refpurpose"> — OpenType font implementation</span>
  81 </dt>
  82 <dt>
  83 <span class="refentrytitle"><a href="harfbuzz-hb-ot-layout.html">hb-ot-layout</a></span><span class="refpurpose"> — OpenType Layout</span>
  84 </dt>
  85 <dt>
  86 <span class="refentrytitle"><a href="harfbuzz-hb-ot-math.html">hb-ot-math</a></span><span class="refpurpose"> — OpenType Math information</span>
  87 </dt>
  88 <dt>
  89 <span class="refentrytitle"><a href="harfbuzz-hb-ot-name.html">hb-ot-name</a></span><span class="refpurpose"> — OpenType font name information</span>
  90 </dt>
  91 <dt>
  92 <span class="refentrytitle"><a href="harfbuzz-hb-ot-shape.html">hb-ot-shape</a></span><span class="refpurpose"> — OpenType shaping support</span>
  93 </dt>
  94 <dt>
  95 <span class="refentrytitle"><a href="harfbuzz-hb-ot-var.html">hb-ot-var</a></span><span class="refpurpose"> — OpenType Font Variations</span>
  96 </dt>
  97 </dl></dd>
  98 <dt><span class="chapter"><a href="ch11.html">Apple Advanced Typography API</a></span></dt>
  99 <dd><dl><dt>
 100 <span class="refentrytitle"><a href="harfbuzz-hb-aat-layout.html">hb-aat-layout</a></span><span class="refpurpose"> — Apple Advanced Typography Layout</span>
 101 </dt></dl></dd>
 102 <dt><span class="chapter"><a href="ch12.html">Integration API</a></span></dt>
 103 <dd><dl>
 104 <dt>
 105 <span class="refentrytitle"><a href="harfbuzz-hb-coretext.html">hb-coretext</a></span><span class="refpurpose"> — CoreText integration</span>
 106 </dt>
 107 <dt>
 108 <span class="refentrytitle"><a href="harfbuzz-hb-ft.html">hb-ft</a></span><span class="refpurpose"> — FreeType integration</span>
 109 </dt>
 110 <dt>
 111 <span class="refentrytitle"><a href="harfbuzz-hb-glib.html">hb-glib</a></span><span class="refpurpose"> — GLib integration</span>
 112 </dt>
 113 <dt>
 114 <span class="refentrytitle"><a href="harfbuzz-hb-gobject.html">hb-gobject</a></span><span class="refpurpose"> — GObject integration</span>
 115 </dt>
 116 <dt>
 117 <span class="refentrytitle"><a href="harfbuzz-hb-graphite2.html">hb-graphite2</a></span><span class="refpurpose"> — Graphite2 integration</span>
 118 </dt>
 119 <dt>
 120 <span class="refentrytitle"><a href="harfbuzz-hb-icu.html">hb-icu</a></span><span class="refpurpose"> — ICU integration</span>
 121 </dt>
 122 <dt>
 123 <span class="refentrytitle"><a href="harfbuzz-hb-uniscribe.html">hb-uniscribe</a></span><span class="refpurpose"> — Windows integration</span>
 124 </dt>
 125 </dl></dd>
 126 <dt><span class="index"><a href="api-index-full.html">API Index</a></span></dt>
 127 <dt><span class="index"><a href="deprecated-api-index.html">Index of deprecated API</a></span></dt>
 128 <dt><span class="index"><a href="api-index-2-1-0.html">Index of new symbols in 2.1.0</a></span></dt>
 129 <dt><span class="index"><a href="api-index-2-0-0.html">Index of new symbols in 2.0.0</a></span></dt>
 130 <dt><span class="index"><a href="api-index-1-9-0.html">Index of new symbols in 1.9.0</a></span></dt>
 131 <dt><span class="index"><a href="api-index-1-8-6.html">Index of new symbols in 1.8.6</a></span></dt>
 132 <dt><span class="index"><a href="api-index-1-8-5.html">Index of new symbols in 1.8.5</a></span></dt>
 133 <dt><span class="index"><a href="api-index-1-8-1.html">Index of new symbols in 1.8.1</a></span></dt>
 134 <dt><span class="index"><a href="api-index-1-8-0.html">Index of new symbols in 1.8.0</a></span></dt>
 135 <dt><span class="index"><a href="api-index-1-7-7.html">Index of new symbols in 1.7.7</a></span></dt>
 136 <dt><span class="index"><a href="api-index-1-7-5.html">Index of new symbols in 1.7.5</a></span></dt>
 137 <dt><span class="index"><a href="api-index-1-6-0.html">Index of new symbols in 1.6.0</a></span></dt>
 138 <dt><span class="index"><a href="api-index-1-5-0.html">Index of new symbols in 1.5.0</a></span></dt>
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 142 <dt><span class="index"><a href="api-index-1-3-3.html">Index of new symbols in 1.3.3</a></span></dt>
 143 <dt><span class="index"><a href="api-index-1-2-3.html">Index of new symbols in 1.2.3</a></span></dt>
 144 <dt><span class="index"><a href="api-index-1-1-3.html">Index of new symbols in 1.1.3</a></span></dt>
 145 <dt><span class="index"><a href="api-index-1-1-2.html">Index of new symbols in 1.1.2</a></span></dt>
 146 <dt><span class="index"><a href="api-index-1-0-5.html">Index of new symbols in 1.0.5</a></span></dt>
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 153 <dt><span class="index"><a href="api-index-0-9-28.html">Index of new symbols in 0.9.28</a></span></dt>
 154 <dt><span class="index"><a href="api-index-0-9-22.html">Index of new symbols in 0.9.22</a></span></dt>
 155 <dt><span class="index"><a href="api-index-0-9-20.html">Index of new symbols in 0.9.20</a></span></dt>
 156 <dt><span class="index"><a href="api-index-0-9-11.html">Index of new symbols in 0.9.11</a></span></dt>
 157 <dt><span class="index"><a href="api-index-0-9-10.html">Index of new symbols in 0.9.10</a></span></dt>
 158 <dt><span class="index"><a href="api-index-0-9-8.html">Index of new symbols in 0.9.8</a></span></dt>
 159 <dt><span class="index"><a href="api-index-0-9-7.html">Index of new symbols in 0.9.7</a></span></dt>
 160 <dt><span class="index"><a href="api-index-0-9-5.html">Index of new symbols in 0.9.5</a></span></dt>
 161 <dt><span class="index"><a href="api-index-0-9-2.html">Index of new symbols in 0.9.2</a></span></dt>
 162 <dt><span class="glossary"><a href="annotation-glossary.html">Annotation Glossary</a></span></dt>
 163 </dl>
 164 </div>
 165 <div class="note">
 166 <p>
 167         The current HarfBuzz codebase is versioned 2.x.x and is stable
 168         and under active maintenance. This is what is used in latest
 169         versions of Firefox, GNOME, ChromeOS, Chrome, LibreOffice,
 170         XeTeX, Android, and KDE, among other places.
 171       </p>
 172 <p>
 173         Prior to 2012, the original HarfBuzz codebase (which, these
 174         days, is referred to as <span class="emphasis"><em>harfbuzz-old</em></span>) was
 175         derived from code in <a class="ulink" href="http://freetype.org/" target="_top">FreeType</a>, <a class="ulink" href="http://pango.org/" target="_top">Pango</a>, and
 176         <a class="ulink" href="http://qt-project.org/" target="_top">Qt</a>.
 177         It is <span class="emphasis"><em>not</em></span> actively developed or
 178         maintained, and is extremely buggy. All users of harfbuzz-old
 179         are encouraged to switch over to the new HarfBuzz as soon as possible.
 180       </p>
 181 <p>
 182         To make this distinction clearer in discussions, the current
 183         HarfBuzz codebase is sometimes referred to as
 184         <span class="emphasis"><em>harfbuzz-ng</em></span>.
 185       </p>
 186 <p>
 187         For reference purposes, the harfbuzz-old source tree is archived
 188         <a class="ulink" href="http://cgit.freedesktop.org/harfbuzz.old/" target="_top">here</a>. There
 189         are no release tarballs of harfbuzz-old whatsoever.
 190       </p>
 191 </div>
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