Add RXf_UNBOUNDED_QUANTIFIER and regexp->maxlen

The flag tells us that a pattern may match an infinitely long string.

The new member in the regexp struct tells us how long the string might
be.

With these two items we can implement regexp based $/

1 files changed, 2 insertions, 0 deletions

diff --git a/regcomp.h b/regcomp.h
index 551f00d193..832ed3e542 100644
--- a/regcomp.h
+++ b/regcomp.h
@@ -582,6 +582,8 @@ struct regnode_ssc {
 #define REG_RUN_ON_COMMENT_SEEN             0x00000200
 #define REG_UNFOLDED_MULTI_SEEN             0x00000400
 #define REG_GOSTART_SEEN                    0x00000800
+#define REG_UNBOUNDED_QUANTIFIER_SEEN       0x00001000
+
 
 START_EXTERN_C