From: K.Kosako <kkosako0@gmail.com>
Date: Sun, 25 Aug 2019 08:58:10 +0000 (+0900)
Subject: add EMPTY_STATUS_CHECK flag into quantifier node
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5b27fc2c7e6ebcfd033c82bf9e905ea17de3e6fb;p=onig

add EMPTY_STATUS_CHECK flag into quantifier node
---

diff --git a/src/regcomp.c b/src/regcomp.c
index c14a124..f57b8f6 100644
--- a/src/regcomp.c
+++ b/src/regcomp.c
@@ -3332,8 +3332,11 @@ set_empty_status_check_trav(Node* node, ScanEnv* env)
       for (i = 0; i < br->back_num; i++) {
 	Node* ernode = mem_env[backs[i]].empty_repeat_node;
 	if (IS_NOT_NULL(ernode)) {
-	  if (! is_ancestor_node(ernode, node))
+	  if (! is_ancestor_node(ernode, node)) {
+	    MEM_STATUS_LIMIT_ON(env->reg->empty_status_mem, backs[i]);
+	    NODE_STATUS_ADD(ernode, EMPTY_STATUS_CHECK);
 	    NODE_STATUS_ADD(mem_env[backs[i]].mem_node, EMPTY_STATUS_CHECK);
+	  }
 	}
       }
     }