1<?xml version="1.0"?> 2<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" 3 "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [ 4 <!ENTITY % local.common.attrib "xmlns:xi CDATA #FIXED 'http://www.w3.org/2003/XInclude'"> 5 <!ENTITY version SYSTEM "version.xml"> 6]> 7<book id="index"> 8 <bookinfo> 9 <title>HarfBuzz Manual</title> 10 <abstract> 11 <title>HarfBuzz</title> 12 <graphic fileref="HarfBuzz.png" format="PNG" align="center"/> 13 <para> 14 HarfBuzz is a text shaping library. Using the HarfBuzz library allows 15 programs to convert a sequence of Unicode input into 16 properly formatted and positioned glyph output—for any writing 17 system and language. 18 </para> 19 20 <para> 21 The canonical source-code tree is available at 22 <ulink url="https://github.com/harfbuzz/harfbuzz">github.com/harfbuzz/harfbuzz</ulink>. 23 See <xref linkend="download" endterm="download.title"/> for 24 release tarballs. 25 </para> 26 </abstract> 27 </bookinfo> 28 29 <part id="user-manual"> 30 <title>User's manual</title> 31 <xi:include href="usermanual-what-is-harfbuzz.xml"/> 32 <xi:include href="usermanual-install-harfbuzz.xml"/> 33 <xi:include href="usermanual-getting-started.xml"/> 34 <xi:include href="usermanual-shaping-concepts.xml"/> 35 <xi:include href="usermanual-object-model.xml"/> 36 <xi:include href="usermanual-buffers-language-script-and-direction.xml"/> 37 <xi:include href="usermanual-fonts-and-faces.xml"/> 38 <xi:include href="usermanual-opentype-features.xml"/> 39 <xi:include href="usermanual-clusters.xml"/> 40 <xi:include href="usermanual-utilities.xml"/> 41 <xi:include href="usermanual-integration.xml"/> 42 </part> 43 44 <part id="reference-manual"> 45 <partinfo> 46 <releaseinfo> 47 This document is for HarfBuzz &version;. 48 <!--The latest version of this documentation can be found on-line at 49 <ulink role="online-location" url="http://[SERVER]/libharfbuzz/index.html">http://[SERVER]/libharfbuzz/</ulink>.--> 50 </releaseinfo> 51 </partinfo> 52 53 <title>Reference manual</title> 54 <chapter id="core-api"> 55 <title>Core API</title> 56 <xi:include href="xml/hb-blob.xml"/> 57 <xi:include href="xml/hb-buffer.xml"/> 58 <xi:include href="xml/hb-common.xml"/> 59 <xi:include href="xml/hb-deprecated.xml"/> 60 <xi:include href="xml/hb-face.xml"/> 61 <xi:include href="xml/hb-font.xml"/> 62 <xi:include href="xml/hb-map.xml"/> 63 <xi:include href="xml/hb-set.xml"/> 64 <xi:include href="xml/hb-shape-plan.xml"/> 65 <xi:include href="xml/hb-shape.xml"/> 66 <xi:include href="xml/hb-unicode.xml"/> 67 <xi:include href="xml/hb-version.xml"/> 68 </chapter> 69 70 <chapter id="opentype-api"> 71 <title>OpenType API</title> 72 <xi:include href="xml/hb-ot-color.xml"/> 73 <xi:include href="xml/hb-ot-font.xml"/> 74 <xi:include href="xml/hb-ot-layout.xml"/> 75 <xi:include href="xml/hb-ot-math.xml"/> 76 <xi:include href="xml/hb-ot-meta.xml"/> 77 <xi:include href="xml/hb-ot-metrics.xml"/> 78 <xi:include href="xml/hb-ot-name.xml"/> 79 <xi:include href="xml/hb-ot-shape.xml"/> 80 <xi:include href="xml/hb-ot-var.xml"/> 81 </chapter> 82 83 <chapter id="apple-advanced-typography-api"> 84 <title>Apple Advanced Typography API</title> 85 <xi:include href="xml/hb-aat-layout.xml"/> 86 </chapter> 87 88 <chapter id="integration-api"> 89 <title>Integration API</title> 90 <xi:include href="xml/hb-coretext.xml"/> 91 <xi:include href="xml/hb-ft.xml"/> 92 <xi:include href="xml/hb-glib.xml"/> 93 <xi:include href="xml/hb-graphite2.xml"/> 94 <xi:include href="xml/hb-icu.xml"/> 95 <xi:include href="xml/hb-uniscribe.xml"/> 96 <xi:include href="xml/hb-gdi.xml"/> 97 <xi:include href="xml/hb-directwrite.xml"/> 98 </chapter> 99 100 <!--chapter id="object-tree"> 101 <title>Object Hierarchy</title> 102 <xi:include href="xml/tree_index.sgml"/> 103 </chapter--> 104 105 <index id="api-index-full"><title>API Index</title><xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include></index> 106 <index id="deprecated-api-index" role="deprecated"><title>Index of deprecated API</title><xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include></index> 107 108 <index id="api-index-2-7-3" role="2.7.3"><title>Index of new symbols in 2.7.3</title><xi:include href="xml/api-index-2.7.3.xml"><xi:fallback /></xi:include></index> 109 <index id="api-index-2-6-8" role="2.6.8"><title>Index of new symbols in 2.6.8</title><xi:include href="xml/api-index-2.6.8.xml"><xi:fallback /></xi:include></index> 110 <index id="api-index-2-6-5" role="2.6.5"><title>Index of new symbols in 2.6.5</title><xi:include href="xml/api-index-2.6.5.xml"><xi:fallback /></xi:include></index> 111 <index id="api-index-2-6-3" role="2.6.3"><title>Index of new symbols in 2.6.3</title><xi:include href="xml/api-index-2.6.3.xml"><xi:fallback /></xi:include></index> 112 <index id="api-index-2-6-0" role="2.6.0"><title>Index of new symbols in 2.6.0</title><xi:include href="xml/api-index-2.6.0.xml"><xi:fallback /></xi:include></index> 113 <index id="api-index-2-5-0" role="2.5.0"><title>Index of new symbols in 2.5.0</title><xi:include href="xml/api-index-2.5.0.xml"><xi:fallback /></xi:include></index> 114 <index id="api-index-2-4-0" role="2.4.0"><title>Index of new symbols in 2.4.0</title><xi:include href="xml/api-index-2.4.0.xml"><xi:fallback /></xi:include></index> 115 <index id="api-index-2-3-0" role="2.3.0"><title>Index of new symbols in 2.3.0</title><xi:include href="xml/api-index-2.3.0.xml"><xi:fallback /></xi:include></index> 116 <index id="api-index-2-2-0" role="2.2.0"><title>Index of new symbols in 2.2.0</title><xi:include href="xml/api-index-2.2.0.xml"><xi:fallback /></xi:include></index> 117 <index id="api-index-2-1-0" role="2.1.0"><title>Index of new symbols in 2.1.0</title><xi:include href="xml/api-index-2.1.0.xml"><xi:fallback /></xi:include></index> 118 <index id="api-index-2-0-0" role="2.0.0"><title>Index of new symbols in 2.0.0</title><xi:include href="xml/api-index-2.0.0.xml"><xi:fallback /></xi:include></index> 119 <index id="api-index-1-9-0" role="1.9.0"><title>Index of new symbols in 1.9.0</title><xi:include href="xml/api-index-1.9.0.xml"><xi:fallback /></xi:include></index> 120 <index id="api-index-1-8-6" role="1.8.6"><title>Index of new symbols in 1.8.6</title><xi:include href="xml/api-index-1.8.6.xml"><xi:fallback /></xi:include></index> 121 <index id="api-index-1-8-5" role="1.8.5"><title>Index of new symbols in 1.8.5</title><xi:include href="xml/api-index-1.8.5.xml"><xi:fallback /></xi:include></index> 122 <index id="api-index-1-8-1" role="1.8.1"><title>Index of new symbols in 1.8.1</title><xi:include href="xml/api-index-1.8.1.xml"><xi:fallback /></xi:include></index> 123 <index id="api-index-1-8-0" role="1.8.0"><title>Index of new symbols in 1.8.0</title><xi:include href="xml/api-index-1.8.0.xml"><xi:fallback /></xi:include></index> 124 <index id="api-index-1-7-7" role="1.7.7"><title>Index of new symbols in 1.7.7</title><xi:include href="xml/api-index-1.7.7.xml"><xi:fallback /></xi:include></index> 125 <index id="api-index-1-7-5" role="1.7.5"><title>Index of new symbols in 1.7.5</title><xi:include href="xml/api-index-1.7.5.xml"><xi:fallback /></xi:include></index> 126 <index id="api-index-1-7-2" role="1.7.2"><title>Index of new symbols in 1.7.2</title><xi:include href="xml/api-index-1.7.2.xml"><xi:fallback /></xi:include></index> 127 <index id="api-index-1-6-0" role="1.6.0"><title>Index of new symbols in 1.6.0</title><xi:include href="xml/api-index-1.6.0.xml"><xi:fallback /></xi:include></index> 128 <index id="api-index-1-5-0" role="1.5.0"><title>Index of new symbols in 1.5.0</title><xi:include href="xml/api-index-1.5.0.xml"><xi:fallback /></xi:include></index> 129 <index id="api-index-1-4-3" role="1.4.3"><title>Index of new symbols in 1.4.3</title><xi:include href="xml/api-index-1.4.3.xml"><xi:fallback /></xi:include></index> 130 <index id="api-index-1-4-2" role="1.4.2"><title>Index of new symbols in 1.4.2</title><xi:include href="xml/api-index-1.4.2.xml"><xi:fallback /></xi:include></index> 131 <index id="api-index-1-4-0" role="1.4.0"><title>Index of new symbols in 1.4.0</title><xi:include href="xml/api-index-1.4.0.xml"><xi:fallback /></xi:include></index> 132 <index id="api-index-1-3-3" role="1.3.3"><title>Index of new symbols in 1.3.3</title><xi:include href="xml/api-index-1.3.3.xml"><xi:fallback /></xi:include></index> 133 <index id="api-index-1-2-3" role="1.2.3"><title>Index of new symbols in 1.2.3</title><xi:include href="xml/api-index-1.2.3.xml"><xi:fallback /></xi:include></index> 134 <index id="api-index-1-1-3" role="1.1.3"><title>Index of new symbols in 1.1.3</title><xi:include href="xml/api-index-1.1.3.xml"><xi:fallback /></xi:include></index> 135 <index id="api-index-1-1-2" role="1.1.2"><title>Index of new symbols in 1.1.2</title><xi:include href="xml/api-index-1.1.2.xml"><xi:fallback /></xi:include></index> 136 <index id="api-index-1-0-5" role="1.0.5"><title>Index of new symbols in 1.0.5</title><xi:include href="xml/api-index-1.0.5.xml"><xi:fallback /></xi:include></index> 137 <index id="api-index-0-9-42" role="0.9.42"><title>Index of new symbols in 0.9.42</title><xi:include href="xml/api-index-0.9.42.xml"><xi:fallback /></xi:include></index> 138 <index id="api-index-0-9-41" role="0.9.41"><title>Index of new symbols in 0.9.41</title><xi:include href="xml/api-index-0.9.41.xml"><xi:fallback /></xi:include></index> 139 <index id="api-index-0-9-39" role="0.9.39"><title>Index of new symbols in 0.9.39</title><xi:include href="xml/api-index-0.9.39.xml"><xi:fallback /></xi:include></index> 140 <index id="api-index-0-9-38" role="0.9.38"><title>Index of new symbols in 0.9.38</title><xi:include href="xml/api-index-0.9.38.xml"><xi:fallback /></xi:include></index> 141 <index id="api-index-0-9-33" role="0.9.33"><title>Index of new symbols in 0.9.33</title><xi:include href="xml/api-index-0.9.33.xml"><xi:fallback /></xi:include></index> 142 <index id="api-index-0-9-31" role="0.9.31"><title>Index of new symbols in 0.9.31</title><xi:include href="xml/api-index-0.9.31.xml"><xi:fallback /></xi:include></index> 143 <index id="api-index-0-9-30" role="0.9.30"><title>Index of new symbols in 0.9.30</title><xi:include href="xml/api-index-0.9.30.xml"><xi:fallback /></xi:include></index> 144 <index id="api-index-0-9-28" role="0.9.28"><title>Index of new symbols in 0.9.28</title><xi:include href="xml/api-index-0.9.28.xml"><xi:fallback /></xi:include></index> 145 <index id="api-index-0-9-26" role="0.9.26"><title>Index of new symbols in 0.9.26</title><xi:include href="xml/api-index-0.9.26.xml"><xi:fallback /></xi:include></index> 146 <index id="api-index-0-9-22" role="0.9.22"><title>Index of new symbols in 0.9.22</title><xi:include href="xml/api-index-0.9.22.xml"><xi:fallback /></xi:include></index> 147 <index id="api-index-0-9-21" role="0.9.21"><title>Index of new symbols in 0.9.21</title><xi:include href="xml/api-index-0.9.21.xml"><xi:fallback /></xi:include></index> 148 <index id="api-index-0-9-20" role="0.9.20"><title>Index of new symbols in 0.9.20</title><xi:include href="xml/api-index-0.9.20.xml"><xi:fallback /></xi:include></index> 149 <index id="api-index-0-9-11" role="0.9.11"><title>Index of new symbols in 0.9.11</title><xi:include href="xml/api-index-0.9.11.xml"><xi:fallback /></xi:include></index> 150 <index id="api-index-0-9-10" role="0.9.10"><title>Index of new symbols in 0.9.10</title><xi:include href="xml/api-index-0.9.10.xml"><xi:fallback /></xi:include></index> 151 <index id="api-index-0-9-8" role="0.9.8"><title>Index of new symbols in 0.9.8</title><xi:include href="xml/api-index-0.9.8.xml"><xi:fallback /></xi:include></index> 152 <index id="api-index-0-9-7" role="0.9.7"><title>Index of new symbols in 0.9.7</title><xi:include href="xml/api-index-0.9.7.xml"><xi:fallback /></xi:include></index> 153 <index id="api-index-0-9-5" role="0.9.5"><title>Index of new symbols in 0.9.5</title><xi:include href="xml/api-index-0.9.5.xml"><xi:fallback /></xi:include></index> 154 <index id="api-index-0-9-2" role="0.9.2"><title>Index of new symbols in 0.9.2</title><xi:include href="xml/api-index-0.9.2.xml"><xi:fallback /></xi:include></index> 155 <index id="api-index-0-6-0" role="0.6.0"><title>Index of new symbols in 0.6.0</title><xi:include href="xml/api-index-0.6.0.xml"><xi:fallback /></xi:include></index> 156 157 <xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include> 158 </part> 159 160 <note> 161 <para> 162 The current HarfBuzz codebase is versioned 2.x.x and is stable 163 and under active maintenance. This is what is used in latest 164 versions of Firefox, GNOME, ChromeOS, Chrome, LibreOffice, 165 XeTeX, Android, and KDE, among other places. 166 </para> 167 <para> 168 Prior to 2012, the original HarfBuzz codebase (which, these days, is 169 referred to as <emphasis>harfbuzz-old</emphasis>) was derived from code 170 in <ulink url="http://freetype.org/">FreeType</ulink>, 171 <ulink url="http://pango.org/">Pango</ulink>, and 172 <ulink url="http://qt-project.org/">Qt</ulink>. 173 It is <emphasis>not</emphasis> actively developed or maintained, and is 174 extremely buggy. All users of harfbuzz-old are encouraged to switch over 175 to the new HarfBuzz as soon as possible. 176 </para> 177 <para> 178 To make this distinction clearer in discussions, the current HarfBuzz 179 codebase is sometimes referred to as <emphasis>harfbuzz-ng</emphasis>. 180 </para> 181 <para> 182 For reference purposes, the harfbuzz-old source tree is archived 183 <ulink url="http://cgit.freedesktop.org/harfbuzz.old/">here</ulink>. 184 There are no release tarballs of harfbuzz-old whatsoever. 185 </para> 186 </note> 187 188</book> 189