--- a/progs/matcher/re1.sc Fri Oct 10 10:18:05 2025 +0100
+++ b/progs/matcher/re1.sc Fri Oct 10 12:26:29 2025 +0100
@@ -222,6 +222,7 @@
@main
def test4() = {
+ val r2 = SEQ(SEQ(CHAR('x'), CHAR('y')), CHAR('z'))
println(pp(r2))
println(pp(ders("x".toList, r2)))
println(pp(ders("xy".toList, r2)))