From: handa <handa>
Date: Fri, 16 Jan 2009 09:23:41 +0000 (+0000)
Subject: *** empty log message ***
X-Git-Url: http://git.chise.org/gitweb/?a=commitdiff_plain;h=8390a457e2cc9f50e97c551dfd6d6244ac6970c5;p=m17n%2Fm17n-lib-cs.git

*** empty log message ***
---

diff --git a/MText.cs b/MText.cs
index 836c4f4..1fbb3f0 100644
--- a/MText.cs
+++ b/MText.cs
@@ -313,14 +313,27 @@ namespace M17N.Core
 	this.depth = 1;
       }
 
-      public MInterval Copy (int start, int end, MInterval interval)
+      private MInterval find (int pos)
       {
-	MInterval new_interval;
+	if (pos < total_start || total_end < pos)
+	  return null;
+	if (pos < Start)
+	  return left.find (pos);
+	if (End < pos)
+	  return right.find (pos);
+	return this;
+      }
+
+      public MInterval Copy (int start, int end)
+      {
+	MInterval interval_start = find (start);
+	MInterval interval_end = find (end);
+	MInterval interval;
 
 	start = adjust_position (start, true);
 	end  = adjust_position (end, true);
-	new_interval = new MInterval (start, end, interval.stack);
-	return new_interval;
+	interval = new MInterval (start, end, stack);
+	return interval;
       }
 
       private MInterval Copy ()