2 * This file is part of DisOrder
3 * Copyright (C) 2008 Richard Kettlewell
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.
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.
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
21 /** @file lib/macros.h
22 * @brief Macro expansion
30 /** @brief One node in a macro expansion parse tree */
32 /** @brief Next element or NULL at end of list */
35 /** @brief Node type, @ref MX_TEXT or @ref MX_EXPANSION. */
38 /** @brief Filename containing this node */
41 /** @brief Line number at start of this node */
44 /** @brief Plain text (if @p type is @ref MX_TEXT) */
47 /** @brief Expansion name (if @p type is @ref MX_EXPANSION) */
50 /** @brief Argument count (if @p type is @ref MX_EXPANSION) */
53 /** @brief Argument values, parsed recursively (or NULL if @p nargs is 0) */
54 const struct mx_node **args;
57 /** @brief Text node */
60 /** @brief Expansion node */
61 #define MX_EXPANSION 1
63 const struct mx_node *mx_parse(const char *filename,
67 char *mx_dump(const struct mx_node *m);
70 /** @brief Callback for simple expansions
71 * @param nargs Number of arguments
72 * @param args Pointer to array of arguments
73 * @param output Where to send output
75 * @return 0 on success, non-zero on error
77 typedef int mx_simple_callback(int nargs,
82 /** @brief Callback for magic expansions
83 * @param nargs Number of arguments
84 * @param args Pointer to array of arguments
85 * @param output Where to send output
87 * @return 0 on success, non-zero on error
89 typedef int mx_magic_callback(int nargs,
90 const struct mx_node **args,
94 void mx_register(const char *name,
97 mx_simple_callback *callback);
98 void mx_magic_register(const char *name,
101 mx_magic_callback *callback);
103 void mx_register_builtin(void);
105 int mx_expand_file(const char *path,
108 int mx_expand(const struct mx_node *m,
111 int mx_expandstr(const struct mx_node *m,
115 int mx_str2bool(const char *s);
116 const char *mx_bool2str(int n);
118 #endif /* MACROS_H */