update packages

[CreaPhase.git] / octave_packages / m / testfun / rundemos.m

diff --git a/octave_packages/m/testfun/rundemos.m b/octave_packages/m/testfun/rundemos.m
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+## Copyright (C) 2008-2012 John W. Eaton
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn  {Function File} {} rundemos ()
+## @deftypefnx {Function File} {} rundemos (@var{directory})
+## Execute built-in demos for all function files in the specified directory.
+## If no directory is specified, operate on all directories in Octave's
+## search path for functions.
+## @seealso{runtests, path}
+## @end deftypefn
+
+## Author: jwe
+
+function rundemos (directory)
+
+  if (nargin == 0)
+    dirs = strsplit (path (), pathsep ());
+  elseif (nargin == 1)
+    if (is_absolute_filename (directory))
+      dirs = {directory};
+    else
+      directory = regexprep (directory, ['\',filesep(),'$'], "");
+      fullname = find_dir_in_path (directory);
+      if (! isempty (fullname))
+        dirs = {fullname};
+      else
+        error ("rundemos: DIRECTORY argument must be a valid pathname");
+      endif
+    endif
+  else
+    print_usage ();
+  endif
+
+  for i = 1:numel (dirs)
+    d = dirs{i};
+    run_all_demos (d);
+  endfor
+
+endfunction
+
+function run_all_demos (directory)
+  dirinfo = dir (directory);
+  flist = {dirinfo.name};
+  for i = 1:numel (flist)
+    f = flist{i};
+    if (length (f) > 2 && strcmp (f((end-1):end), ".m"))
+      f = fullfile (directory, f);
+      if (has_demos (f))
+        try
+          demo (f);
+        catch
+          printf ("error: %s\n\n", lasterror().message)
+        end_try_catch
+        if (i != numel (flist))
+          input ("Press <enter> to continue: ", "s");
+        endif
+      endif
+    endif
+  endfor
+endfunction
+
+function retval = has_demos (f)
+  fid = fopen (f);
+  if (f < 0)
+    error ("rundemos: fopen failed: %s", f);
+  else
+    str = fscanf (fid, "%s");
+    fclose (fid);
+    retval = findstr (str, "%!demo");
+  endif
+endfunction
+
+%!error rundemos ("foo", 1);