1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000 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/>. */
22 #include "data/val-type.h"
33 struct expression *expr_parse (struct lexer *, struct dataset *, enum val_type);
34 struct expression *expr_parse_bool (struct lexer *, struct dataset *);
35 struct expression *expr_parse_new_variable (
36 struct lexer *, struct dataset *,
37 const char *new_var_name, const struct msg_location *new_var_location);
38 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);
46 const struct operation *expr_get_function (size_t idx);
47 size_t expr_get_n_functions (void);
48 const char *expr_operation_get_name (const struct operation *);
49 const char *expr_operation_get_prototype (const struct operation *);
50 int expr_operation_get_n_args (const struct operation *);