1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@gnu.org>.
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 /* Expression parsing flags. */
28 EXPR_NUMBER = 0xf000, /* Number. */
29 EXPR_STRING, /* String. */
30 EXPR_BOOLEAN, /* Boolean (number limited to 0, 1, SYSMIS). */
38 struct expression *expr_parse (struct dictionary *, enum expr_type);
39 void expr_free (struct expression *);
41 double expr_evaluate_num (struct expression *, const struct ccase *,
43 void expr_evaluate_str (struct expression *, const struct ccase *,
44 int case_idx, char *dst, size_t dst_size);