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annotate scripts/general/methods.m @ 16403:1de4ec2a856d

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Matlab compatibility for strsplit() * scripts/strings/strsplit.m: Matlab compatible version. * NEWS: Mention break in backward compatibility. * scripts/deprecated/javafields.m: Modify call to strsplit(). * scripts/deprecated/javamethods.m: ditto * scripts/general/fieldnames.m: ditto * scripts/general/int2str.m: ditto * scripts/general/methods.m: ditto * scripts/general/num2str.m: ditto * scripts/help/gen_doc_cache.m: ditto * scripts/help/help.m: ditto * scripts/help/lookfor.m: ditto * scripts/io/strread.m: ditto * scripts/java/javaclasspath.m: ditto * scripts/miscellaneous/compare_versions.m: ditto * scripts/miscellaneous/computer.m: ditto * scripts/miscellaneous/fact.m: ditto * scripts/miscellaneous/tar.m: ditto * scripts/miscellaneous/unpack.m: ditto * scripts/miscellaneous/what.m: ditto * scripts/miscellaneous/zip.m: ditto * scripts/pkg/private/configure_make.m: ditto * scripts/pkg/private/fix_depends.m: ditto * scripts/pkg/private/generate_lookfor_cache.m: ditto * scripts/pkg/private/list_forge_packages.m: ditto * scripts/pkg/private/unload_packages.m: ditto * scripts/pkg/private/write_index.m: ditto * scripts/plot/private/__file_filter__.m: ditto * scripts/plot/private/__fltk_file_filter__.m: ditto * scripts/plot/private/__go_draw_axes__.m: ditto * scripts/plot/private/__next_line_style__.m: ditto * scripts/strings/untabify.m: ditto * scripts/testfun/rundemos.m: ditto * scripts/testfun/runtests.m: ditto
author Ben Abbott <bpabbott@mac.com>
date Sun, 31 Mar 2013 19:19:04 -0400
parents 59b6c6aee042
children b7667fcb9fbc
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42cff4396de4 Add methods.m which extends methods() to work on Java objects.
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1 ## Copyright (C) 2012 Rik Wehbring
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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} {} methods (@var{obj})
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21 ## @deftypefnx {Function File} {} methods ("@var{classname}")
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22 ## @deftypefnx {Function File} {@var{mtds} =} methods (@dots{})
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23 ##
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24 ## Return a cell array containing the names of the methods for the
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25 ## object @var{obj} or the named class @var{classname}.
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26 ## @var{obj} may be an Octave class object or a Java object.
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27 ##
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28 ## @seealso{fieldnames}
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29 ## @end deftypefn
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30
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31 function mtds = methods (obj)
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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 if (isobject (obj))
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38 ## Call internal C++ function for Octave objects
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39 mtds_list = __methods__ (obj);
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40 elseif (ischar (obj))
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41 ## Could be a classname for an Octave class or Java class.
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42 ## Try Octave class first.
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43 mtds_list = __methods__ (obj);
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44 if (isempty (mtds_list))
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45 mtds_str = javaMethod ("getMethods", "org.octave.ClassHelper", obj);
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46 mtds_list = strsplit (mtds_str, ';', false);
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47 endif
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48 elseif (isjava (obj))
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49 ## FIXME: Function prototype that excepts java obj exists, but doesn't
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50 ## work if obj is java.lang.String. Convert obj to classname.
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51 obj = class (obj);
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52 mtds_str = javaMethod ("getMethods", "org.octave.ClassHelper", obj);
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53 mtds_list = strsplit (mtds_str, ';', false);
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54 else
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55 error ("methods: Invalid input argument");
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56 endif
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57
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58 if (nargout == 0)
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59 classname = ifelse (ischar (obj), obj, class (obj));
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60 printf ("Methods for class %s:\n", classname);
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61 disp (list_in_columns (mtds_list));
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62 else
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63 mtds = mtds_list;
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64 endif
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65
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66 endfunction
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67
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68
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69 ## test Octave classname
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70 %!test
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71 %! mtds = methods ("ftp");
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72 %! assert (mtds{1}, "ascii");
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73
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74 ## test Java classname
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75 %!testif HAVE_JAVA
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76 %! mtds = methods ("java.lang.Double");
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77 %! search = strfind (mtds, "java.lang.Double valueOf");
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78 %! assert (! isempty ([search{:}]));
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79