Expand description
Glyph substitution (gsub) implementation.
The Glyph Substitution (GSUB) table provides data for substition of glyphs for appropriate rendering of scripts, such as cursively-connecting forms in Arabic script, or for advanced typographic effects, such as ligatures.
— https://docs.microsoft.com/en-us/typography/opentype/spec/gsub
Structs
Enums
Type indicating the features to use when shaping text.
Traits
merge is called during ligature substitution (i.e. merging of glyphs),
and determines how the RawGlyph.extra_data field should be merged
Functions
Perform glyph substitution according to the supplied features, script and language.