Both makeotf
and feaLib
now support NULL
special keyword to mean glyph deletion. But Glyphs 3 does not support it.
This is now implemented in the cutting edge 3099, also supporting the del
or delete
rule:
# deletes /b from the buffer if between /a and /c:
sub a b' c by NULL;
# same effect:
del a b' c;
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