5 Commits

Author	SHA1	Message	Date
Connor Olding	b80fb49a22	allow _ in expr vars; tweak number matching	2016-12-01 10:31:55 -08:00
Connor Olding	63644df1bc	lex the same number syntax in expressions	2016-12-01 10:19:09 -08:00
Connor Olding	6bae5647c8	fix parsing of 0 in expressions	2016-11-27 21:25:57 -08:00
Connor Olding	ab493693a9	add support for variables in expressions	2016-11-27 21:17:42 -08:00
Connor Olding	cdc0f8edb2	add a barebones expression parser ... at the moment, this probably only works in directives. some of the operators are still unimplemented, and the errors are poor. there will be support for accessing variables in the future.	2016-10-14 09:27:19 -07:00