# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1284996062 14400
# Node ID 2538d03489cc4e7554858f44891e9c165d29b74d
# Parent  2ab8cc6dccedd2e3a3c7b3a4ea9e79ce2a884a2c
avoid infinite loop in regexp searches with PCRE

diff -r 2ab8cc6dcced -r 2538d03489cc src/ChangeLog
--- a/src/ChangeLog	Sun Sep 19 20:47:46 2010 -0400
+++ b/src/ChangeLog	Mon Sep 20 11:21:02 2010 -0400
@@ -1,3 +1,9 @@
+2010-09-20  John W. Eaton  <jwe@octave.org>
+
+	* DLD-FUNCTIONS/regexp.cc (octregexp_list) [HAVE_PCRE]:
+	Break from search loop if idx is at or beyond end of buffer
+	(bug #31056).
+
 2010-09-19  Ben Abbott <bpabbott@mac.com>
 
 	* graphics.h.in: Add displayname property to patch and surface objects.
diff -r 2ab8cc6dcced -r 2538d03489cc src/DLD-FUNCTIONS/regexp.cc
--- a/src/DLD-FUNCTIONS/regexp.cc	Sun Sep 19 20:47:46 2010 -0400
+++ b/src/DLD-FUNCTIONS/regexp.cc	Mon Sep 20 11:21:02 2010 -0400
@@ -486,7 +486,7 @@
               idx = ovector[1];
               sz++;
 
-              if (once)
+              if (once || idx >= buffer.length ())
                 break;
 
             }