# OpenType Feature File specification, section 5.f.ii, example 3 | |
# "Specifying exceptions to the Chain Sub rule" | |
# http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html | |
feature test { | |
@LETTER = [a-z]; | |
ignore sub @LETTER a' n' d', a' n' d' @LETTER; | |
sub a' n' d' by a_n_d; | |
} test; |