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<title>HarfBuzz Manual: HarfBuzz Manual</title>
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<meta name="description" content="HarfBuzz HarfBuzz is an OpenType text shaping engine. The current HarfBuzz codebase, formerly known as harfbuzz-ng, is versioned 1.x.x and is stable and under active maintenance. This is what is used in latest versions of Firefox, GNOME, ChromeOS, Chrome, LibreOffice, XeTeX, Android, and KDE, among other places. The canonical source tree is available here. Also available on github. See for release tarballs. The old HarfBuzz codebase, these days known as harfbuzz-old, was derived from FreeType, Pango, and Qt and is available here. It is not actively developed or maintained, and is extremely buggy. All users are encouraged to switch over to the new HarfBuzz as soon as possible. There are no release tarballs of old HarfBuzz whatsoever.">
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<link rel="home" href="index.html" title="HarfBuzz Manual">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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HarfBuzz
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HarfBuzz is an OpenType
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text shaping engine.
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The current HarfBuzz codebase, formerly known as harfbuzz-ng, is
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versioned 1.x.x and is stable and under active maintenance. This is
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what is used in latest versions of Firefox, GNOME, ChromeOS, Chrome,
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LibreOffice, XeTeX, Android, and KDE, among other places. The canonical
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source tree is available
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here.
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Also available on
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github.
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See Download for release tarballs.
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The old HarfBuzz codebase, these days known as harfbuzz-old, was
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derived from FreeType,
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Pango, and
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Qt and is available
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here.
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It is not actively developed or maintained, and is extremely buggy. All
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users are encouraged to switch over to the new HarfBuzz as soon as
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possible. There are no release tarballs of old HarfBuzz whatsoever.
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I. User's manual
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What is Harfbuzz?
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Why do I need it?
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Why is it called Harfbuzz?
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Install Harfbuzz
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Download
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Building
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Hello, Harfbuzz
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- What Harfbuzz doesn't do
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Buffers, language, script and direction
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Creating and destroying buffers
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Adding text to the buffer
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Setting buffer properties
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What about the other scripts?
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Customizing Unicode functions
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Fonts and faces
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Using FreeType
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Using Harfbuzz's native OpenType implementation
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Using your own font functions
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Clusters
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A clustering example for levels 0 and 1
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Reordering in levels 0 and 1
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The distinction between levels 0 and 1
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Level 2
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Ligatures with combining marks
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Reordering
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Shaping and shape plans
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OpenType features
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Plans and caching
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II. Reference manual
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Harfbuzz API
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hb
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hb-common
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hb-unicode
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Buffers — Input and output buffers
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hb-blob
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hb-face
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hb-font
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Shaping — Conversion of text strings into positioned glyphs
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hb-version
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hb-deprecated
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hb-set
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hb-ot
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hb-ot-layout
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hb-ot-tag
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hb-ot-font
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hb-ot-shape
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hb-ot-math
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hb-shape-plan
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hb-glib
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hb-icu
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hb-ft
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hb-graphite2
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hb-uniscribe
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hb-coretext
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hb-gobject
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Object Hierarchy
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API Index
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Index of new symbols in 0.9.2
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Index of new symbols in 0.9.5
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Index of new symbols in 0.9.7
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Index of new symbols in 0.9.8
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Index of new symbols in 0.9.10
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Index of new symbols in 0.9.11
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Index of new symbols in 0.9.20
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Index of new symbols in 0.9.22
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Index of new symbols in 0.9.28
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Index of new symbols in 0.9.30
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Index of new symbols in 0.9.31
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Index of new symbols in 0.9.38
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Index of new symbols in 0.9.39
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Index of new symbols in 0.9.41
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Index of new symbols in 0.9.42
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Index of new symbols in 1.0.5
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Index of new symbols in 1.1.2
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Index of new symbols in 1.1.3
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Index of new symbols in 1.2.3
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Index of new symbols in 1.3.3
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Index of deprecated API
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Annotation Glossary
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