Mercurial > octave
view scripts/miscellaneous/delete.m @ 32047:e3de59065cf1
inputParser.m: Re-architect internal data structures for 60% speed improvement.
Key idea is to replace Parameter and Switch structs with name field containing
a nested struct (def, val fields) with a struct array that has fields "name",
"def", and "val". This makes it possible to eliminate for loops.
* NEWS.9.md: Announce performance improvement.
* inputParser.m: Declare "Parameter" and "Switch" properties as struct arrays.
Add new private property "last_idx" which caches the last Parameter or Switch
lookup.
* inputParser.m (addRequired): Adjust input validation to use numel() now
rather than numfields().
* inputParser.m (addOptional): Adjust input validation to use numel() now
rather than numfields().
* inputParser.m (addParameter): Change code to add new Parameter to a struct
array.
* inputParser.m (addSwitch): Change code to add new Switch to a struct
array.
* inputParser.m (parse): Adjust initialization of internal variables
ParameterNames and SwitchNames to match new data structure.
Use last_idx to simplify call to validate_arg() for Parameters.
* inputParser.m (validate_arg): Move creation of error message
to code path when error has been found---No need to do it for every
function call. Don't capture "exception" variable in try/catch as
it is no longer used.
* inputParser.m (is_argname): Cache "last_idx" if match was found.
* inputParser.m (add_missing): Replace call to setdiff() with in-place
code which can take advantage of implicit knowledge to eliminate calls
to unique and input validation. Replace for loop with cell2struct/struct2cell
combination.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 21 Apr 2023 11:01:40 -0700 |
parents | 597f3ee61a48 |
children | 2e484f9f1f18 |
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######################################################################## ## ## Copyright (C) 2004-2023 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} delete @var{file} ## @deftypefnx {} {} delete @var{file1} @var{file2} @dots{} ## @deftypefnx {} {} delete (@var{file}) ## @deftypefnx {} {} delete (@var{file1}, @var{file2}, @dots{}) ## @deftypefnx {} {} delete (@var{handle}) ## Delete the named file or graphics handle. ## ## @var{file} may contain globbing patterns such as @samp{*}. Multiple files ## to be deleted may be specified in the same function call. ## ## @var{handle} may be a scalar or vector of graphic handles to delete. ## ## Programming Note: Deleting graphics objects is the proper way to remove ## features from a plot without clearing the entire figure. ## @seealso{clf, cla, unlink, rmdir} ## @end deftypefn function delete (varargin) if (nargin == 0) print_usage (); endif if (iscellstr (varargin)) for arg = varargin if (ispc ()) files = __wglob__ (arg{1}); else files = glob (arg{1}); endif if (isempty (files)) warning ("Octave:delete:no-such-file", ... "delete: no such file: %s", arg{1}); endif for i = 1:length (files) file = files{i}; [err, msg] = unlink (file); if (err) warning ("Octave:delete:unlink-error", ... "delete: %s: %s", file, msg); endif endfor endfor elseif (isscalar (varargin) && all (ishghandle (varargin{1}(:)))) ## Delete a graphics object. __go_delete__ (varargin{1}); else error ("Octave:delete:unsupported-object", ... "delete: first argument must be a filename or graphics handle"); endif endfunction %!test %! unwind_protect %! file = tempname (); %! tmp_var = pi; %! save (file, "tmp_var"); %! assert (exist (file, "file")); %! delete (file); %! assert (! exist (file, "file")); %! unwind_protect_cleanup %! sts = unlink (file); %! end_unwind_protect %!test %! unwind_protect %! hf = figure ("visible", "off"); %! hl = plot (1:10); %! assert (get (gca, "children"), hl); %! delete (hl); %! assert (get (gca, "children"), zeros (0,1)); %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect ## Test input validation %!error <Invalid call> delete () %!error <first argument must be a filename> delete (struct ())