1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/* $OpenBSD: options.c,v 1.3 2009/09/21 07:00:09 nicm Exp $ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdarg.h>
#include <string.h>
#include "tmux.h"
/*
* Option handling; each option has a name, type and value and is stored in
* a splay tree.
*/
SPLAY_GENERATE(options_tree, options_entry, entry, options_cmp);
int
options_cmp(struct options_entry *o1, struct options_entry *o2)
{
return (strcmp(o1->name, o2->name));
}
void
options_init(struct options *oo, struct options *parent)
{
SPLAY_INIT(&oo->tree);
oo->parent = parent;
}
void
options_free(struct options *oo)
{
struct options_entry *o;
while (!SPLAY_EMPTY(&oo->tree)) {
o = SPLAY_ROOT(&oo->tree);
SPLAY_REMOVE(options_tree, &oo->tree, o);
xfree(o->name);
if (o->type == OPTIONS_STRING)
xfree(o->str);
xfree(o);
}
}
struct options_entry *
options_find1(struct options *oo, const char *name)
{
struct options_entry p;
p.name = (char *) name;
return (SPLAY_FIND(options_tree, &oo->tree, &p));
}
struct options_entry *
options_find(struct options *oo, const char *name)
{
struct options_entry *o, p;
p.name = (char *) name;
o = SPLAY_FIND(options_tree, &oo->tree, &p);
while (o == NULL) {
oo = oo->parent;
if (oo == NULL)
break;
o = SPLAY_FIND(options_tree, &oo->tree, &p);
}
return (o);
}
void
options_remove(struct options *oo, const char *name)
{
struct options_entry *o;
if ((o = options_find1(oo, name)) == NULL)
return;
SPLAY_REMOVE(options_tree, &oo->tree, o);
xfree(o->name);
if (o->type == OPTIONS_STRING)
xfree(o->str);
xfree(o);
}
void printflike3
options_set_string(struct options *oo, const char *name, const char *fmt, ...)
{
struct options_entry *o;
va_list ap;
if ((o = options_find1(oo, name)) == NULL) {
o = xmalloc(sizeof *o);
o->name = xstrdup(name);
SPLAY_INSERT(options_tree, &oo->tree, o);
} else if (o->type == OPTIONS_STRING)
xfree(o->str);
va_start(ap, fmt);
o->type = OPTIONS_STRING;
xvasprintf(&o->str, fmt, ap);
va_end(ap);
}
char *
options_get_string(struct options *oo, const char *name)
{
struct options_entry *o;
if ((o = options_find(oo, name)) == NULL)
fatalx("missing option");
if (o->type != OPTIONS_STRING)
fatalx("option not a string");
return (o->str);
}
void
options_set_number(struct options *oo, const char *name, long long value)
{
struct options_entry *o;
if ((o = options_find1(oo, name)) == NULL) {
o = xmalloc(sizeof *o);
o->name = xstrdup(name);
SPLAY_INSERT(options_tree, &oo->tree, o);
} else if (o->type == OPTIONS_STRING)
xfree(o->str);
o->type = OPTIONS_NUMBER;
o->num = value;
}
long long
options_get_number(struct options *oo, const char *name)
{
struct options_entry *o;
if ((o = options_find(oo, name)) == NULL)
fatalx("missing option");
if (o->type != OPTIONS_NUMBER)
fatalx("option not a number");
return (o->num);
}
|
