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HarfBuzz

HarfBuzz
Developer(s) Behdad Esfahbod, Simon Hausmann, Martin Hosken, Jonathan Kew, Lars Knoll, Werner Lemberg, Owen Taylor, David Turner
Stable release 1.0.6 / 15 October 2015 (2015-10-15)
Written in C++
Operating system Microsoft Windows, Unix-like
Type Software development library
License MIT
Website //HarfBuzz/Software/wiki.orgfreedesktop

HarfBuzz (loose Latin transliteration of Persian: حرف‌باز, "Opentype")[1] is a software development library for text shaping, which is the process of converting Unicode text to glyph indices and positions. The most recent incarnation of HarfBuzz ("New HarfBuzz") targets various font technologies while the first version ("Old HarfBuzz") targeted only OpenType fonts.[2] New HarfBuzz provides only text shaping functionality and not text layout or rendering, which require other libraries. Pango (which incorporates HarfBuzz) can be used for higher-level text layout, and FreeType or Anti-Grain Geometry for text rendering.

The goals for New HarfBuzz, as set by the developers, are for HarfBuzz to be beautiful, robust, flexible, efficient, and portable. Some potential applications that are a good fit for HarfBuzz are: GUI toolkits, web browsers, word processors, designer tools, font design tools, terminal emulators, batch document processors, and TeX engines.[3]

Contents

  • History 1
  • Major users 2
  • Notes 3
  • External links 4

History

Behdad Esfahbod of HarfBuzz

HarfBuzz evolved from code that was originally part of the FreeType project. It was then developed separately in Qt and Pango. Then it was merged back into a common repository with an MIT license. This was Old HarfBuzz. Old HarfBuzz is no longer being developed, as the path going forward is New HarfBuzz. In 2013, Behdad Esfahbod won O'Reilly Open Source Award for his works on HarfBuzz.[4]

Major users

Both Qt and Pango currently use HarfBuzz; other standalone users include Firefox, Chromium (all platforms. used to be Linux only),[5] XeTeX and LibreOffice.[6]

Notes

  1. ^
  2. ^
  3. ^ HarfBuzz presentation slides from the Internationalization & Unicode Conference, October 2009.
  4. ^
  5. ^
  6. ^

External links

  • Official website
  • Harfbuzz API design discussion thread
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