+++ /dev/null
-/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2010, 2011, 2015, 2016 Free Software Foundation, Inc.
-
- This program 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.
-
- This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-
-#include <stdlib.h>
-
-#include "data/dataset.h"
-#include "data/dictionary.h"
-#include "data/variable.h"
-#include "language/command.h"
-#include "language/lexer/lexer.h"
-#include "language/lexer/variable-parser.h"
-#include "libpspp/message.h"
-#include "libpspp/str.h"
-
-#include "gl/xalloc.h"
-
-#include "gettext.h"
-#define _(msgid) gettext (msgid)
-
-int
-cmd_rename_variables (struct lexer *lexer, struct dataset *ds)
-{
- struct variable **vars_to_be_renamed = NULL;
- size_t n_vars_to_be_renamed = 0;
-
- char **new_names = NULL;
- size_t n_new_names = 0;
-
- char *err_name;
-
- int status = CMD_CASCADING_FAILURE;
-
- if (proc_make_temporary_transformations_permanent (ds))
- lex_ofs_error (lexer, 0, lex_ofs (lexer) - 1,
- _("%s may not be used after %s. "
- "Temporary transformations will be made permanent."),
- "RENAME VARS", "TEMPORARY");
-
- do
- {
- int opts = PV_APPEND | PV_NO_DUPLICATE;
-
- if (!lex_match (lexer, T_LPAREN))
- opts |= PV_SINGLE;
- int start_ofs = lex_ofs (lexer);
- if (!parse_variables (lexer, dataset_dict (ds),
- &vars_to_be_renamed, &n_vars_to_be_renamed, opts))
- {
- goto lossage;
- }
- if (!lex_force_match (lexer, T_EQUALS))
- {
- goto lossage;
- }
- if (!parse_DATA_LIST_vars (lexer, dataset_dict (ds),
- &new_names, &n_new_names, opts))
- {
- goto lossage;
- }
- int end_ofs = lex_ofs (lexer) - 1;
- if (n_new_names != n_vars_to_be_renamed)
- {
- lex_ofs_error (lexer, start_ofs, end_ofs,
- _("Differing number of variables in old name list "
- "(%zu) and in new name list (%zu)."),
- n_vars_to_be_renamed, n_new_names);
- goto lossage;
- }
- if (!(opts & PV_SINGLE) && !lex_force_match (lexer, T_RPAREN))
- {
- goto lossage;
- }
- }
- while (lex_token (lexer) != T_ENDCMD);
-
- if (!dict_rename_vars (dataset_dict (ds),
- vars_to_be_renamed, new_names, n_new_names,
- &err_name))
- {
- lex_ofs_error (lexer, 2, lex_ofs (lexer) - 1,
- _("Renaming would duplicate variable name %s."), err_name);
- goto lossage;
- }
-
- status = CMD_SUCCESS;
-
- lossage:
- free (vars_to_be_renamed);
- if (new_names != NULL)
- {
- size_t i;
- for (i = 0; i < n_new_names; ++i)
- free (new_names[i]);
- free (new_names);
- }
- return status;
-}