* regcomp.c (optimize_node_left, set_optimize_info_from_tree): right

  handling for look behind anchor.

* regexec.c (onig_search): ditto.
  [Backport #8076]

this patch is derived from Onigmo base tree.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@39983 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/regexec.c b/regexec.c
index ee0a5fa2af..55c28178c4 100644
--- a/regexec.c
+++ b/regexec.c
@@ -3560,7 +3560,9 @@ onig_search(regex_t* reg, const UChar* str, const UChar* end,
       }
     }
     else if ((reg->anchor & ANCHOR_ANYCHAR_STAR_ML)) {
-      goto begin_position;
+      if (!(reg->anchor & ANCHOR_LOOK_BEHIND)) {
+	goto begin_position;
+      }
     }
   }
   else if (str == end) { /* empty string */