1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2021 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/>. */
23 #include "libpspp/hmap.h"
24 #include "libpspp/str.h"
25 #include "language/lexer/token.h"
29 char *name; /* NULL for a positional parameter. */
30 struct tokens def; /* Default expansion. */
31 bool expand_arg; /* Macro-expand the argument? */
45 struct token enclose[2];
51 struct hmap_node hmap_node; /* Indexed by 'name'. */
54 struct macro_param *params;
61 void macro_destroy (struct macro *);
68 const struct macro *macro_set_find (const struct macro_set *,
71 struct macro_expander *macro_expander_create (const struct macro_set *);
72 void macro_expander_destroy (struct macro_expander *);
74 /* Add one token to the input to macro-expand. Returns:
76 -1: Advance one token without change.
78 >0: Expand the given number of tokens.
80 int macro_expander_add (struct macro_expander *, const struct token *);
81 int macro_expander_add_eof (struct macro_expander *);
83 void macro_expander_get_expansion (struct macro_expander *,
84 struct token **tokens, size_t *n);