From 9ac0263c2fca2f45f85e372108328097aeadfed6 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 14 Jul 2010 09:22:39 +0000
Subject: [PATCH] * regexec.c (match_at): add end point to enclen's argument.  
 This only effect on compilinig with -DONIG_DEBUG_MATCH.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28637 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 5 +++++
 regexec.c | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 15995f29ee..a923349259 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jul 14 18:18:05 2010  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regexec.c (match_at): add end point to enclen's argument.
+	  This only effect on compilinig with -DONIG_DEBUG_MATCH.
+
 Tue Jul 13 21:34:17 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/readline/readline.c: libedit is missing declaration of
diff --git a/regexec.c b/regexec.c
index c011480ec8..24422b1671 100644
--- a/regexec.c
+++ b/regexec.c
@@ -1300,13 +1300,13 @@ match_at(regex_t* reg, const UChar* str, const UChar* end,
   s = (UChar* )sstart;
   while (1) {
 #ifdef ONIG_DEBUG_MATCH
-    {
+    if (s) {
       UChar *q, *bp, buf[50];
       int len;
       fprintf(stderr, "%4d> \"", (int )(s - str));
       bp = buf;
       for (i = 0, q = s; i < 7 && q < end; i++) {
-	len = enclen(encode, q);
+	len = enclen(encode, q, end);
 	while (len-- > 0) *bp++ = *q++;
       }
       if (q < end) { xmemcpy(bp, "...\"", 4); bp += 4; }