From: handa <handa>
Date: Fri, 2 Sep 2005 06:01:57 +0000 (+0000)
Subject: (mtext__adjust_plist_for_change): Pay attention for
X-Git-Tag: REL-1-3-0~211
X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a75163911116292e7e1b8811a8f41c1d200286a;p=m17n%2Fm17n-lib.git

(mtext__adjust_plist_for_change): Pay attention for
the case that head is NULL.
---

diff --git a/src/textprop.c b/src/textprop.c
index 3d84043..e2abb67 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -1448,19 +1448,22 @@ mtext__adjust_plist_for_change (MText *mt, int pos, int len1, int len2)
 	  MTextProperty *prop;
 	  int i;
 
-	  if (head->start == pos2)
-	    head = head->prev;
-	  while (tail != head)
+	  if (head)
 	    {
-	      for (i = 0; i < tail->nprops; i++)
+	      if (head->start == pos2)
+		head = head->prev;
+	      while (tail != head)
 		{
-		  prop = tail->stack[i];
-		  if (prop->start == tail->start)
-		    prop->start += diff, prop->end += diff;
+		  for (i = 0; i < tail->nprops; i++)
+		    {
+		      prop = tail->stack[i];
+		      if (prop->start == tail->start)
+			prop->start += diff, prop->end += diff;
+		    }
+		  tail->start += diff;
+		  tail->end += diff;
+		  tail = tail->prev;
 		}
-	      tail->start += diff;
-	      tail->end += diff;
-	      tail = tail->prev;
 	    }
 	  for (i = 0; i < tail->nprops; i++)
 	    tail->stack[i]->end += diff;