* regcomp.c (optimize_node_left): include equal on the condition of for-loop.

This bug also affects original Oniguruma. [ruby-core:27247]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26143 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Mon Dec 21 17:51:44 2009  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regcomp.c (optimize_node_left): include equal on the condition of for-loop.
+	  This bug also affects original Oniguruma. [ruby-core:27247]
+
 Mon Dec 21 10:03:33 2009  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* regcomp.c (print_enc_string): follow enclen's change.

regcomp.c

@@ -4792,7 +4792,7 @@ optimize_node_left(Node* node, NodeOptInfo* opt, OptEnv* env)
 	  copy_node_opt_info(opt, &nopt);
 	  if (nopt.exb.len > 0) {
 	    if (nopt.exb.reach_end) {
-	      for (i = 2; i < qn->lower &&
+	      for (i = 2; i <= qn->lower &&
 		          ! is_full_opt_exact_info(&opt->exb); i++) {
 		concat_opt_exact_info(&opt->exb, &nopt.exb, env->enc);
 	      }