From a77ea177fe6609137c677d2c33453467eaea30df Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 26 Feb 2012 14:32:54 +0000
Subject: * regparse.c (add_code_range_to_buf0): wrong condition of duplicated 
  warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 regparse.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'regparse.c')

diff --git a/regparse.c b/regparse.c
index 183d1fffdf..08ffa8060d 100644
--- a/regparse.c
+++ b/regparse.c
@@ -1776,13 +1776,18 @@ add_code_range_to_buf0(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePo
     else
       bound = x;
   }
+  /* data[(low-1)*2+1] << from <= data[low*2]
+   * data[(high-1)*2+1] <= to << data[high*2]
+   */
 
   inc_n = low + 1 - high;
   if (n + inc_n > ONIG_MAX_MULTI_BYTE_RANGES_NUM)
     return ONIGERR_TOO_MANY_MULTI_BYTE_RANGES;
 
   if (inc_n != 1) {
-    if (checkdup && to >= data[low*2]) CC_DUP_WARN(env);
+    if (checkdup && from <= data[low*2+1]
+	&& (data[low*2] <= from  || data[low*2+1] <= to))
+	CC_DUP_WARN(env);
     if (from > data[low*2])
       from = data[low*2];
     if (to < data[(high - 1)*2 + 1])
-- 
cgit v1.2.3