--- a/progs/parser-combinators/comb2.sc	Tue Nov 02 14:40:06 2021 +0000
+++ b/progs/parser-combinators/comb2.sc	Thu Nov 11 15:58:22 2021 +0000
@@ -14,6 +14,8 @@
 // it allows writing nested patterns as
 // case x ~ y ~ z => ...
 
+
+
 case class ~[+A, +B](x: A, y: B)
 
 // constraint for the input