4 commits

Author	SHA1	Message	Date
Max Brunsfeld	0985fa3008	Collapse rules that contain only a single token	2014-01-05 01:19:32 -08:00
Max Brunsfeld	29c81167c0	Remove subclasses of Symbol for terminals and non-terminals	2014-01-04 15:01:06 -08:00
Max Brunsfeld	ed80d9cf52	Don’t allow duplicate rules when extracting tokens from grammars	2014-01-04 13:38:03 -08:00
Max Brunsfeld	44745b5179	Start work on pre-processing grammars	2014-01-03 01:02:24 -08:00