3 Commits

Author	SHA1	Message	Date
krasimir	be3dc0ef9e	now the datatype Tree is only internal. All API functions are working with Expr directly. Commands gt, gr, p and rf filter out the output via the typechecker	2009-09-08 08:40:28 +00:00
krasimir	54dbfeef48	hopefully complete and correct typechecker in PGF	2009-09-06 20:31:52 +00:00
krasimir	e5399f2d0e	refactor the PGF.Expr type and the evaluation of abstract expressions	2009-05-20 21:03:56 +00:00