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1dcdf455 RK |
1 | /* |
2 | * This file is part of DisOrder | |
3 | * Copyright (C) 2008 Richard Kettlewell | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
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. | |
14 | * | |
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
18 | * USA | |
19 | */ | |
20 | ||
21 | /** @file lib/macros.h | |
22 | * @brief Macro expansion | |
23 | */ | |
24 | ||
25 | #ifndef MACROS_H | |
26 | #define MACROS_H | |
27 | ||
28 | /** @brief One node in a macro expansion parse tree */ | |
29 | struct mx_node { | |
30 | /** @brief Next element or NULL at end of list */ | |
31 | struct mx_node *next; | |
32 | ||
33 | /** @brief Node type, @ref MX_TEXT or @ref MX_EXPANSION. */ | |
34 | int type; | |
35 | ||
36 | /** @brief Filename containing this node */ | |
37 | const char *filename; | |
38 | ||
39 | /** @brief Line number at start of this node */ | |
40 | int line; | |
41 | ||
42 | /** @brief Plain text (if @p type is @ref MX_TEXT) */ | |
43 | char *text; | |
44 | ||
45 | /** @brief Expansion name (if @p type is @ref MX_EXPANSION) */ | |
46 | char *name; | |
47 | ||
48 | /** @brief Argument count (if @p type is @ref MX_EXPANSION) */ | |
49 | int nargs; | |
50 | ||
51 | /** @brief Argument values, parsed recursively (or NULL if @p nargs is 0) */ | |
52 | const struct mx_node **args; | |
53 | }; | |
54 | ||
55 | /** @brief Text node */ | |
56 | #define MX_TEXT 0 | |
57 | ||
58 | /** @brief Expansion node */ | |
59 | #define MX_EXPANSION 1 | |
60 | ||
61 | const struct mx_node *mx_parse(const char *filename, | |
62 | int line, | |
63 | const char *input, | |
64 | const char *end); | |
65 | ||
66 | #endif /* MACROS_H */ | |
67 | ||
68 | ||
69 | /* | |
70 | Local Variables: | |
71 | c-basic-offset:2 | |
72 | comment-column:40 | |
73 | fill-column:79 | |
74 | indent-tabs-mode:nil | |
75 | End: | |
76 | */ |