diff -r 6342d0570502 -r 2778715487a9 progs/tests/nullsub3.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/progs/tests/nullsub3.txt	Sat Apr 09 09:51:00 2016 +0100
@@ -0,0 +1,51 @@
+     1		(a*)*		a		(0,1)(0,1)
+     2		SAME		x		(0,0)(0,0)
+     3		SAME		aaaaaa		(0,6)(0,6)
+     4		SAME		aaaaaax		(0,6)(0,6)
+     5		(a*)+		a		(0,1)(0,1)
+     6		SAME		x		(0,0)(0,0)
+     7		SAME		aaaaaa		(0,6)(0,6)
+     8		SAME		aaaaaax		(0,6)(0,6)
+     9		(a+)*		a		(0,1)(0,1)
+    10		SAME		x		(0,0)(?,?)
+    11		SAME		aaaaaa		(0,6)(0,6)
+    12		SAME		aaaaaax		(0,6)(0,6)
+    13		(a+)+		a		(0,1)(0,1)
+    14		SAME		x		NOMATCH
+    15		SAME		aaaaaa		(0,6)(0,6)
+    16		SAME		aaaaaax		(0,6)(0,6)
+    17		([a]*)*		a		(0,1)(0,1)
+    18		SAME		x		(0,0)(0,0)
+    19		SAME		aaaaaa		(0,6)(0,6)
+    20		SAME		aaaaaax		(0,6)(0,6)
+    21		([a]*)+		a		(0,1)(0,1)
+    22		SAME		x		(0,0)(0,0)
+    23		SAME		aaaaaa		(0,6)(0,6)
+    24		SAME		aaaaaax		(0,6)(0,6)
+    25		([^b]*)*	a		(0,1)(0,1)
+    26		SAME		b		(0,0)(0,0)
+    27		SAME		aaaaaa		(0,6)(0,6)
+    28		SAME		aaaaaab		(0,6)(0,6)
+    29		([ab]*)*	a		(0,1)(0,1)
+    30		SAME		aaaaaa		(0,6)(0,6)
+    31		SAME		ababab		(0,6)(0,6)
+    32		SAME		bababa		(0,6)(0,6)
+    33		SAME		b		(0,1)(0,1)
+    34		SAME		bbbbbb		(0,6)(0,6)
+    35		SAME		aaaabcde	(0,5)(0,5)
+    36		([^a]*)*	b		(0,1)(0,1)
+    37		SAME		bbbbbb		(0,6)(0,6)
+    38		SAME		aaaaaa		(0,0)(0,0)
+    39		([^ab]*)*	ccccxx		(0,6)(0,6)
+    40		SAME		ababab		(0,0)(0,0)
+    41		((z)+|a)*	zabcde		(0,2)(1,2)(?,?)
+    42		(a)		aaa		(0,1)(0,1)
+    46		(a*)*(x)		x	(0,1)(0,0)(0,1)
+    47		(a*)*(x)		ax	(0,2)(0,1)(1,2)
+    48		(a*)*(x)		axa	(0,2)(0,1)(1,2)
+    49		(a*)+(x)		x	(0,1)(0,0)(0,1)
+    50		(a*)+(x)		ax	(0,2)(0,1)(1,2)
+    51		(a*)+(x)		axa	(0,2)(0,1)(1,2)
+    52		(a*){2}(x)		x	(0,1)(0,0)(0,1)
+    53		(a*){2}(x)		ax	(0,2)(1,1)(1,2)
+    54		(a*){2}(x)		axa	(0,2)(1,1)(1,2)