# HG changeset patch
# User Sergey Plotnikov
# Date 1394570678 -3600
# Node ID 2ce1f1966fc3d2cef13b830f4ae94e76dad07b6b
# Parent  02a61d7c2de06d2a9ee5eea206ae62591364b5ec
textscan.m: Fix undefined whitespace error with empty format input (bug #41824).

* textscan.m: Define whitespace variable even when format string is empty.
Add %!test for behavior.

diff -r 02a61d7c2de0 -r 2ce1f1966fc3 scripts/io/textscan.m
--- a/scripts/io/textscan.m	Thu Mar 20 21:57:14 2014 -0700
+++ b/scripts/io/textscan.m	Tue Mar 11 21:44:38 2014 +0100
@@ -1,4 +1,4 @@
-## Copyright (C) 2010-2013 Ben Abbott
+## Copyright (C) 2010-2014 Ben Abbott
 ##
 ## This file is part of Octave.
 ##
@@ -135,6 +135,7 @@
     if (! (isempty (args{ipos+1}) && has_str_fmt))
       args{ipos+1} = unique ([" ", args{ipos+1}]);
     endif
+    whitespace = args{ipos+1};
   endif
 
   if (! any (strcmpi (args, "delimiter")))
@@ -661,3 +662,7 @@
 %! unlink (f);
 %! assert (msg1, lasterr);
 
+%% Bug #41824
+%!test
+%! assert (textscan ("123", "", "whitespace", " "){:}, 123);
+