1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2006, 2007, 2010, 2011, 2013 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "data/casereader.h"
22 #include "data/dataset.h"
23 #include "data/dictionary.h"
24 #include "language/command.h"
25 #include "language/lexer/variable-parser.h"
26 #include "libpspp/message.h"
29 #define _(msgid) gettext (msgid)
31 /* Performs DELETE VARIABLES command. */
33 cmd_delete_variables (struct lexer *lexer, struct dataset *ds)
35 struct variable **vars;
39 if (proc_make_temporary_transformations_permanent (ds))
40 msg (SE, _("DELETE VARIABLES may not be used after TEMPORARY. "
41 "Temporary transformations will be made permanent."));
43 if (!parse_variables (lexer, dataset_dict (ds), &vars, &var_cnt, PV_NONE))
45 if (var_cnt == dict_get_var_cnt (dataset_dict (ds)))
47 msg (SE, _("DELETE VARIABLES may not be used to delete all variables "
48 "from the active dataset dictionary. "
49 "Use NEW FILE instead."));
53 ok = casereader_destroy (proc_open_filtering (ds, false));
54 ok = proc_commit (ds) && ok;
57 dict_delete_vars (dataset_dict (ds), vars, var_cnt);
65 return CMD_CASCADING_FAILURE;