# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1454828638 18000
# Node ID 7be1f58f9dd72519917abcf2c460abfe6472bda3
# Parent  f7d1050b9b5331433ace013874a3659ae962211d
don't strip pipe character from command in drawnow function

* graphics.cc (Fdrawnow): Don't strip pipe character in command before
passing to toolkit print function.  Only check first character in
command string for pipe character.

diff -r f7d1050b9b53 -r 7be1f58f9dd7 libinterp/corefcn/graphics.cc
--- a/libinterp/corefcn/graphics.cc	Sat Feb 06 18:22:32 2016 -0800
+++ b/libinterp/corefcn/graphics.cc	Sun Feb 07 02:03:58 2016 -0500
@@ -10763,26 +10763,17 @@
 
           file = args(1).xstring_value ("drawnow: FILE must be a string");
 
-          size_t pos_p = file.find_first_of ("|");
-          size_t pos_c = file.find_first_not_of ("| ");
-
-          if (pos_p == std::string::npos &&
-              pos_c == std::string::npos)
+          if (file.empty ())
             error ("drawnow: empty output ''");
-          else if (pos_c == std::string::npos)
+          else if (file.length () == 1 && file[0] == '|')
             error ("drawnow: empty pipe '|'");
-          else if (pos_p != std::string::npos && pos_p < pos_c)
-            {
-              // Strip leading pipe character
-              file = file.substr (pos_c);
-            }
-          else
+          else if (file[0] != '|')
             {
               size_t pos = file.find_last_of (file_ops::dir_sep_chars ());
 
               if (pos != std::string::npos)
                 {
-                  std::string dirname = file.substr (pos_c, pos+1);
+                  std::string dirname = file.substr (0, pos+1);
 
                   file_stat fs (dirname);