mhosken 7a0c5e1ca2 Add fea generation support (#776)
* First round of adding fea output

No format tests but all test files give reasonable output so far.

* Get existing tests working

* Initial tests that work for fea2fea

* Get more tests working

Bug fixes and re-layout some tests to compare with fea2fea output.
Ranges and name parameters are not optimised yet.

* Handle vertical default values in fea2fea

* Hide fea2fea differences in lookupflags

* No reduce() in py3 so use a for loop
2016-12-20 11:10:29 +01:00

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# OpenType Feature File specification, section 5.f.i, example 1
# "Specifying a Chain Sub rule and marking sub-runs"
# http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html
languagesystem latn dflt;
lookup CNTXT_LIGS {
sub f i by f_i;
sub c t by c_t;
} CNTXT_LIGS;
lookup CNTXT_SUB {
sub n by n.end;
sub s by s.end;
} CNTXT_SUB;
feature test {
sub [a e i o u] f' lookup CNTXT_LIGS i' n' lookup CNTXT_SUB;
sub [a e i o u] c' lookup CNTXT_LIGS t' s' lookup CNTXT_SUB;
} test;