Mercurial > projects > pwm

annotate macro.c @ 35:2a8298bafec2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Try to use $HOME for the user's home directory
author Guido Berhoerster <guido+pwm@berhoerster.name>
date Tue, 06 Aug 2019 11:21:04 +0200
parents 722a45b4028b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
27
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
1 /*
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
2 * Copyright (C) 2017 Guido Berhoerster <guido+pwm@berhoerster.name>
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
3 *
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
4 * Permission is hereby granted, free of charge, to any person obtaining
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
5 * a copy of this software and associated documentation files (the
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
6 * "Software"), to deal in the Software without restriction, including
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
7 * without limitation the rights to use, copy, modify, merge, publish,
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
8 * distribute, sublicense, and/or sell copies of the Software, and to
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
9 * permit persons to whom the Software is furnished to do so, subject to
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
10 * the following conditions:
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
11 *
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
12 * The above copyright notice and this permission notice shall be included
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
13 * in all copies or substantial portions of the Software.
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
14 *
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
22 */
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
23
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
24 #include "compat.h"
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
25
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
26 #include <ctype.h>
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
27 #ifdef HAVE_QUEUE_H
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
28 #include <sys/queue.h>
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
29 #endif /* HAVE_QUEUE_H */
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
30 #include <stdlib.h>
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
31 #include <string.h>
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
32
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
33 #include "macro.h"
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
34 #include "tok.h"
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
35 #include "util.h"
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
36
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
37 TAILQ_HEAD(macro_head, macro_entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
38
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
39 struct macro_entry {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
40 TAILQ_ENTRY(macro_entry) entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
41 char *name;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
42 int argc;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
43 char **argv;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
44 };
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
45
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
46 static struct macro_entry *
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
47 match_macro(struct macro_head *head, const char *name)
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
48 {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
49 struct macro_entry *entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
50
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
51 TAILQ_FOREACH(entry, head, entry) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
52 if (strcmp(entry->name, name) == 0) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
53 return (entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
54 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
55 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
56
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
57 return (NULL);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
58 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
59
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
60 void
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
61 macro_init(struct macro_head **headp)
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
62 {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
63 struct macro_head *head;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
64
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
65 head = xmalloc(sizeof (struct macro_head));
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
66 TAILQ_INIT(head);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
67 *headp = head;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
68 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
69
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
70 static void
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
71 free_macro_entry(struct macro_entry *entry)
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
72 {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
73 int i;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
74
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
75 if (entry == NULL) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
76 return;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
77 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
78
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
79 free(entry->name);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
80 for (i = 0; i < entry->argc; i++) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
81 free(entry->argv[i]);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
82 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
83 free(entry->argv);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
84 free(entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
85 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
86
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
87 void
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
88 macro_destroy(struct macro_head *head)
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
89 {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
90 struct macro_entry *entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
91 struct macro_entry *tmp_entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
92
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
93 if (head == NULL) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
94 return;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
95 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
96
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
97 TAILQ_FOREACH_SAFE(entry, head, entry, tmp_entry) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
98 TAILQ_REMOVE(head, entry, entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
99 free_macro_entry(entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
100 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
101 free(head);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
102 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
103
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
104 enum macro_err
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
105 macro_parse(const char *name, size_t tokenc, union tok **tokenv,
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
106 struct macro_head *head, struct macro_entry **macro_entryp)
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
107 {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
108 const char *p = name;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
109 int argc;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
110 char **argv;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
111 struct macro_entry *entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
112
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
113 /* validate macro name */
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
114 for (p = name; *p != '\0'; p++) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
115 /*
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
116 * macro names must contain only ASCII alphanumeric characters
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
117 * and underscores
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
118 */
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
119 if (!isascii(*p) || (!isalnum(*p) && (*p != '_'))) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
120 return (MACRO_ERR_INVALID_NAME);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
121 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
122 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
123
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
124 /* expand macros */
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
125 if (macro_expand_macros(head, tokenc, tokenv, &argc, &argv) != 0) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
126 return (MACRO_ERR_UNDEFINED_MACRO);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
127 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
128
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
129 /* create macro */
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
130 entry = xmalloc(sizeof (struct macro_entry));
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
131 entry->name = xstrdup(name);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
132 entry->argc = argc;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
133 entry->argv = argv;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
134 *macro_entryp = entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
135
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
136 return (MACRO_ERR_OK);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
137 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
138
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
139 void
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
140 macro_add(struct macro_head *head, struct macro_entry *entry)
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
141 {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
142 struct macro_entry *old_entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
143
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
144 /* remove existing macro with the same name */
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
145 old_entry = match_macro(head, entry->name);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
146 if (old_entry != NULL) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
147 TAILQ_REMOVE(head, old_entry, entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
148 free_macro_entry(old_entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
149 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
150
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
151 TAILQ_INSERT_TAIL(head, entry, entry);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
152 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
153
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
154 int
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
155 macro_expand_macros(struct macro_head *head, size_t tokenc, union tok **tokenv,
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
156 int *argcp, char ***argvp)
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
157 {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
158 int retval = -1;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
159 char **argv = NULL;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
160 int argc = 0;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
161 size_t argv_size = tokenc + 1;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
162 size_t i;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
163 struct macro_entry *entry;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
164 int j;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
165
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
166 argv = xmalloc(argv_size * sizeof (char *));
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
167 argv[0] = NULL;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
168
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
169 for (i = 0; i < tokenc; i++) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
170 switch (tokenv[i]->any.type) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
171 case TOK_ARG:
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
172 argv[argc++] = xstrdup(tokenv[i]->arg.value);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
173 argv[argc] = NULL;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
174 break;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
175 case TOK_MACRO:
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
176 entry = match_macro(head, tokenv[i]->macro.name);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
177 if (entry == NULL) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
178 goto out;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
179 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
180 argv_size += entry->argc;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
181 argv = xrealloc(argv, argv_size * sizeof (char *));
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
182 for (j = 0; j < entry->argc; j++) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
183 argv[argc++] = xstrdup(entry->argv[j]);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
184 argv[argc] = NULL;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
185 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
186 break;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
187 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
188 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
189 *argvp = argv;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
190 *argcp = argc;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
191 retval = 0;
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
192
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
193 out:
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
194 if (retval != 0) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
195 for (j = 0; j < argc; j++) {
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
196 free(argv[j]);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
197 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
198 free(argv);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
199 }
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
200
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
201 return (retval);
722a45b4028b Add define command for defining macros
Guido Berhoerster <guido+pwm@berhoerster.name>
parents:
diff changeset
202 }