User's manual What is HarfBuzz? What is text shaping? Why do I need a shaping engine? What does HarfBuzz do? What HarfBuzz doesn't do Why is it called HarfBuzz? Installing HarfBuzz Downloading HarfBuzz Building HarfBuzz Building on Linux Building on Windows Building on macOS Configuration options Getting started with HarfBuzz An overview of the HarfBuzz shaping API Terminology A simple shaping example Shaping concepts Text shaping Script-specific shaping Shaping operations Unicode character categories Text runs OpenType shaping models Graphite shaping AAT shaping The HarfBuzz object model An overview of data types in HarfBuzz Objects in HarfBuzz Object lifecycle management User data Blobs Buffers, language, script and direction Creating and destroying buffers Adding text to the buffer Setting buffer properties Customizing Unicode functions Fonts, faces, and output Font and face objects Customizing font functions Font objects and HarfBuzz's native OpenType implementation Working with OpenType Variable Fonts Glyphs and rendering Shaping and shape plans Shaping and buffer output OpenType features Shaper selection Plans and caching Clusters Clusters and shaping Working with HarfBuzz clusters A clustering example for levels 0 and 1 Reordering in levels 0 and 1 The distinction between levels 0 and 1 Level 2 Ligatures with combining marks in level 2 Reordering in level 2 Other considerations in level 2 Utilities Command-line tools hb-shape hb-view hb-subset Common data types and APIs Platform Integration Guide GNOME integration, GLib, and GObject FreeType integration Cairo integration Uniscribe integration Core Text integration ICU integration Python bindings II.
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