2 commits

Author	SHA1	Message	Date
Alex Shinn	ef4372a2cd	fix for iset-prune! to return an empty iset instead of #f	2012-06-24 23:20:00 -07:00
Alex Shinn	c903a73921	adding ascii and full unicode char-set libraries based on isets	2012-06-17 19:36:17 +09:00