fonttools/Tests/feaLib/data/spec5h1.fea

# OpenType Feature File specification, section 5.h, example 1.
# http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html

languagesystem DFLT dflt;

feature test {
#test-fea2fea: rsub [a e n] d' by d.alt;
    reversesub [a e n] d' by d.alt;
} test;