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author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-01-20 08:41:04 +0000 |
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committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-01-20 08:41:04 +0000 |
commit | f38c4c9950a17a4979870a6a5145761ab7315c1d (patch) | |
tree | 2b77a890a496d3c53ca504335c66a3027359442e /Build/source/libs/graphite2/graphite2-src/README.md | |
parent | 459cb70d5498e4eea62f42ddb5306183f1f5e539 (diff) |
graphite2 1.3.5
git-svn-id: svn://tug.org/texlive/trunk@39433 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/graphite2/graphite2-src/README.md')
-rw-r--r-- | Build/source/libs/graphite2/graphite2-src/README.md | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Build/source/libs/graphite2/graphite2-src/README.md b/Build/source/libs/graphite2/graphite2-src/README.md new file mode 100644 index 00000000000..2c4ecf58d8a --- /dev/null +++ b/Build/source/libs/graphite2/graphite2-src/README.md @@ -0,0 +1,32 @@ +# Graphite engine + +## What is Graphite? + +Graphite is a system that can be used to create “smart fonts” capable of displaying writing systems with various complex behaviors. A smart font contains not only letter shapes but also additional instructions indicating how to combine and position the letters in complex ways. + +Graphite was primarily developed to provide the flexibility needed for minority languages which often need to be written according to slightly different rules than well-known languages that use the same script. + +Examples of complex script behaviors Graphite can handle include: + +* contextual shaping +* ligatures +* reordering +* split glyphs +* bidirectionality +* stacking diacritics +* complex positioning +* shape aware kerning +* automatic diacritic collision avoidance + +See [examples of scripts with complex rendering](http://scripts.sil.org/CmplxRndExamples). + +## Graphite system overview +The Graphite system consists of: + +* A rule-based programming language [Graphite Description Language](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_devFont#gdl) (GDL) that can be used to describe the behavior of a writing system +* A compiler for that language +* A rendering engine that can serve as the layout component of a text-processing application + +Graphite renders TrueType fonts that have been extended by means of compiling a GDL program. + +Further technical information is available on the [Graphite technical overview](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_techAbout) page. |