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comparison macro.h @ 27:722a45b4028b

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Add define command for defining macros Macros are parsed when they are defined with the D command and can subsequently be used as arguments for other commands. Handle out of memory errors directly in tok.c.
author Guido Berhoerster <guido+pwm@berhoerster.name>
date Mon, 25 Sep 2017 21:21:25 +0200
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26:5bdea77d0c1d 27:722a45b4028b
1 /*
2 * Copyright (C) 2017 Guido Berhoerster <guido+pwm@berhoerster.name>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24 #ifndef MACRO_H
25 #define MACRO_H
26
27 #include "tok.h"
28
29 enum macro_err {
30 MACRO_ERR_OK,
31 MACRO_ERR_INVALID_NAME = -1,
32 MACRO_ERR_UNDEFINED_MACRO = -2,
33 MACRO_ERR_RECURSIVE = -3
34 };
35
36 struct macro_head;
37 struct macro_entry;
38
39 void macro_init(struct macro_head **);
40 void macro_destroy(struct macro_head *);
41 enum macro_err macro_parse(const char *, size_t, union tok **,
42 struct macro_head *, struct macro_entry **);
43 void macro_add(struct macro_head *, struct macro_entry *);
44 int macro_expand_macros(struct macro_head *, size_t, union tok **,
45 int *, char ***);
46
47 #endif /* !MACRO_H */