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annotate scripts/miscellaneous/run.m @ 7319:4a853a9138e7

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[project @ 2007-12-17 19:16:27 by jwe]
author jwe
date Mon, 17 Dec 2007 19:16:27 +0000
parents f084ba47812b
children 2f0920d1edd4
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1 ## Copyright (C) 2007 David Bateman
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} run (@var{f})
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21 ## @deftypefnx {Command} {} run @var{f}
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22 ## Run scripts in the current workspace that are not necessarily on the
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23 ## path. If @var{f} is the script to run, including its path, then @code{run}
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24 ## change the directory to the directory where @var{f} is found. @code{run}
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25 ## then executes the script, and returns to the original directory.
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26 ## @seealso{system}
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27 ## @end deftypefn
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28
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29 ## PKG_ADD: mark_as_command run
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30
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31 function run (s)
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32
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33 if (nargin != 1)
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34 print_usage ();
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35 endif
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36
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37 [d, f, ext] = fileparts (s);
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38 if (! isempty (d))
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39 if (exist (d, "dir"))
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40 wd = pwd ();
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41 unwind_protect
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42 cd (d);
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43 if (! exist (s, "file") || ! strcmp (ext, ".m"))
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44 error ("run: file must exist and be a valid Octave script file");
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45 endif
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46 evalin ("caller", [f, ";"], "rethrow (lasterror ())");
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47 unwind_protect_cleanup
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48 cd (wd);
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49 end_unwind_protect
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50 else
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51 error ("run: the path %s doesn't exist", d);
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52 endif
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53 else
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54 if (exist (f, "file"))
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55 evalin ("caller", [f, ";"], "rethrow (lasterror ())");
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56 else
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57 error ("run: %s not found", s);
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58 endif
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59 endif
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60 endfunction