Glyphs may be removed with a feature using the
delete keyword (or its abbreviation:
Remove all occurrences of a glyph by writing its name after the
Glyphs may also be deleted contextually.
Mark the glyph to be deleted by adding a single quote (
') after its name.
Define the context by writing glyph names and classes before and after the marked glyph.
In the following example, tonos is only deleted when followed by Alpha:
delete tonos' Alpha;
delete keyword is not supported by standard AFDKO-based tools.
Alternatively, substitute a glyph by the special keyword
NULL to delete it.
This method also works when used with AFDKO tools outside of Glyphs.
sub tonos by NULL;
sub tonos' Alpha by NULL;