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"
27 struct macro_expander;
31 bool positional; /* Is this a positional parameter? */
32 char *name; /* "!1" or "!name". */
33 struct tokens def; /* Default expansion. */
34 bool expand_arg; /* Macro-expand the argument? */
48 struct token enclose[2];
54 struct hmap_node hmap_node; /* Indexed by 'name'. */
57 struct macro_param *params;
60 struct substring body;
61 struct tokens body_tokens;
64 void macro_destroy (struct macro *);
71 struct macro_set *macro_set_create (void);
72 void macro_set_destroy (struct macro_set *);
73 const struct macro *macro_set_find (const struct macro_set *,
75 void macro_set_add (struct macro_set *, struct macro *);
78 macro_set_is_empty (const struct macro_set *set)
80 return hmap_is_empty (&set->macros);
83 /* Macro expansion. */
85 int macro_expander_create (const struct macro_set *,
87 struct macro_expander **);
88 void macro_expander_destroy (struct macro_expander *);
90 int macro_expander_add (struct macro_expander *, const struct token *);
92 void macro_expander_get_expansion (struct macro_expander *, struct tokens *);