Annotation of src/usr.bin/tmux/options.c, Revision 1.12
1.12 ! nicm 1: /* $OpenBSD: options.c,v 1.11 2014/10/20 23:57:14 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
21: #include <stdarg.h>
1.8 nicm 22: #include <stdlib.h>
1.1 nicm 23: #include <string.h>
24:
25: #include "tmux.h"
26:
27: /*
28: * Option handling; each option has a name, type and value and is stored in
1.9 nicm 29: * a red-black tree.
1.1 nicm 30: */
31:
1.7 nicm 32: RB_GENERATE(options_tree, options_entry, entry, options_cmp);
1.1 nicm 33:
34: int
35: options_cmp(struct options_entry *o1, struct options_entry *o2)
36: {
37: return (strcmp(o1->name, o2->name));
38: }
39:
40: void
41: options_init(struct options *oo, struct options *parent)
42: {
1.7 nicm 43: RB_INIT(&oo->tree);
1.1 nicm 44: oo->parent = parent;
45: }
46:
47: void
48: options_free(struct options *oo)
49: {
50: struct options_entry *o;
51:
1.7 nicm 52: while (!RB_EMPTY(&oo->tree)) {
53: o = RB_ROOT(&oo->tree);
54: RB_REMOVE(options_tree, &oo->tree, o);
1.8 nicm 55: free(o->name);
1.1 nicm 56: if (o->type == OPTIONS_STRING)
1.8 nicm 57: free(o->str);
58: free(o);
1.1 nicm 59: }
60: }
61:
62: struct options_entry *
63: options_find1(struct options *oo, const char *name)
64: {
65: struct options_entry p;
66:
67: p.name = (char *) name;
1.7 nicm 68: return (RB_FIND(options_tree, &oo->tree, &p));
1.1 nicm 69: }
70:
71: struct options_entry *
72: options_find(struct options *oo, const char *name)
73: {
74: struct options_entry *o, p;
75:
76: p.name = (char *) name;
1.7 nicm 77: o = RB_FIND(options_tree, &oo->tree, &p);
1.1 nicm 78: while (o == NULL) {
79: oo = oo->parent;
80: if (oo == NULL)
81: break;
1.7 nicm 82: o = RB_FIND(options_tree, &oo->tree, &p);
1.1 nicm 83: }
84: return (o);
85: }
86:
1.2 nicm 87: void
1.1 nicm 88: options_remove(struct options *oo, const char *name)
89: {
90: struct options_entry *o;
91:
92: if ((o = options_find1(oo, name)) == NULL)
1.2 nicm 93: return;
1.1 nicm 94:
1.7 nicm 95: RB_REMOVE(options_tree, &oo->tree, o);
1.8 nicm 96: free(o->name);
1.1 nicm 97: if (o->type == OPTIONS_STRING)
1.8 nicm 98: free(o->str);
99: free(o);
1.1 nicm 100: }
101:
1.11 nicm 102: struct options_entry *
1.1 nicm 103: options_set_string(struct options *oo, const char *name, const char *fmt, ...)
104: {
105: struct options_entry *o;
106: va_list ap;
107:
108: if ((o = options_find1(oo, name)) == NULL) {
109: o = xmalloc(sizeof *o);
110: o->name = xstrdup(name);
1.7 nicm 111: RB_INSERT(options_tree, &oo->tree, o);
1.10 nicm 112: memcpy(&o->style, &grid_default_cell, sizeof o->style);
1.1 nicm 113: } else if (o->type == OPTIONS_STRING)
1.8 nicm 114: free(o->str);
1.1 nicm 115:
116: va_start(ap, fmt);
117: o->type = OPTIONS_STRING;
1.3 nicm 118: xvasprintf(&o->str, fmt, ap);
1.1 nicm 119: va_end(ap);
1.4 nicm 120: return (o);
1.1 nicm 121: }
122:
123: char *
124: options_get_string(struct options *oo, const char *name)
125: {
126: struct options_entry *o;
127:
128: if ((o = options_find(oo, name)) == NULL)
129: fatalx("missing option");
130: if (o->type != OPTIONS_STRING)
131: fatalx("option not a string");
1.3 nicm 132: return (o->str);
1.1 nicm 133: }
134:
1.4 nicm 135: struct options_entry *
1.1 nicm 136: options_set_number(struct options *oo, const char *name, long long value)
137: {
138: struct options_entry *o;
139:
140: if ((o = options_find1(oo, name)) == NULL) {
141: o = xmalloc(sizeof *o);
142: o->name = xstrdup(name);
1.7 nicm 143: RB_INSERT(options_tree, &oo->tree, o);
1.10 nicm 144: memcpy(&o->style, &grid_default_cell, sizeof o->style);
1.1 nicm 145: } else if (o->type == OPTIONS_STRING)
1.8 nicm 146: free(o->str);
1.1 nicm 147:
148: o->type = OPTIONS_NUMBER;
1.3 nicm 149: o->num = value;
1.4 nicm 150: return (o);
1.1 nicm 151: }
152:
153: long long
154: options_get_number(struct options *oo, const char *name)
155: {
156: struct options_entry *o;
157:
158: if ((o = options_find(oo, name)) == NULL)
159: fatalx("missing option");
160: if (o->type != OPTIONS_NUMBER)
161: fatalx("option not a number");
1.3 nicm 162: return (o->num);
1.10 nicm 163: }
164:
165: struct options_entry *
166: options_set_style(struct options *oo, const char *name, const char *value,
167: int append)
168: {
169: struct options_entry *o;
1.12 ! nicm 170: struct grid_cell tmpgc;
1.10 nicm 171:
1.12 ! nicm 172: o = options_find1(oo, name);
! 173: if (o == NULL || !append)
! 174: memcpy(&tmpgc, &grid_default_cell, sizeof tmpgc);
! 175: else
! 176: memcpy(&tmpgc, &o->style, sizeof tmpgc);
! 177:
! 178: if (style_parse(&grid_default_cell, &tmpgc, value) == -1)
! 179: return (NULL);
! 180:
! 181: if (o == NULL) {
1.10 nicm 182: o = xmalloc(sizeof *o);
183: o->name = xstrdup(name);
184: RB_INSERT(options_tree, &oo->tree, o);
185: } else if (o->type == OPTIONS_STRING)
186: free(o->str);
187:
188: o->type = OPTIONS_STYLE;
1.12 ! nicm 189: memcpy(&o->style, &tmpgc, sizeof o->style);
1.10 nicm 190: return (o);
191: }
192:
193: struct grid_cell *
194: options_get_style(struct options *oo, const char *name)
195: {
196: struct options_entry *o;
197:
198: if ((o = options_find(oo, name)) == NULL)
199: fatalx("missing option");
200: if (o->type != OPTIONS_STYLE)
201: fatalx("option not a style");
202: return (&o->style);
1.1 nicm 203: }
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