xref: /netbsd-src/external/bsd/tmux/dist/cmd-list-keys.c (revision 1b9578b8c2c1f848eeb16dabbfd7d1f0d9fdefbd)
1 /* $Id: cmd-list-keys.c,v 1.1.1.1 2011/03/10 09:15:37 jmmv Exp $ */
2 
3 /*
4  * Copyright (c) 2007 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 <string.h>
22 
23 #include "tmux.h"
24 
25 /*
26  * List key bindings.
27  */
28 
29 int	cmd_list_keys_exec(struct cmd *, struct cmd_ctx *);
30 
31 int	cmd_list_keys_table(struct cmd *, struct cmd_ctx *);
32 
33 const struct cmd_entry cmd_list_keys_entry = {
34 	"list-keys", "lsk",
35 	"[-t key-table]",
36 	0, "",
37 	cmd_target_init,
38 	cmd_target_parse,
39 	cmd_list_keys_exec,
40 	cmd_target_free,
41 	cmd_target_print
42 };
43 
44 int
45 cmd_list_keys_exec(struct cmd *self, struct cmd_ctx *ctx)
46 {
47 	struct cmd_target_data	*data = self->data;
48 	struct key_binding	*bd;
49 	const char		*key;
50 	char			 tmp[BUFSIZ];
51 	size_t			 used;
52 	int			 width, keywidth;
53 
54 	if (data->target != NULL)
55 		return (cmd_list_keys_table(self, ctx));
56 
57 	width = 0;
58 	SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
59 		key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
60 		if (key == NULL)
61 			continue;
62 
63 		keywidth = strlen(key) + 1;
64 		if (!(bd->key & KEYC_PREFIX))
65 			keywidth += 2;
66 		if (keywidth > width)
67 			width = keywidth;
68 	}
69 
70 	SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
71 		key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
72 		if (key == NULL)
73 			continue;
74 		used = xsnprintf(tmp, sizeof tmp, "%*s: ", width, key);
75 		if (used >= sizeof tmp)
76 			continue;
77 
78 		if (!(bd->key & KEYC_PREFIX)) {
79 			used = strlcat(tmp, "(no prefix) ", sizeof tmp);
80 			if (used >= sizeof tmp)
81 				continue;
82 		}
83 		if (bd->can_repeat) {
84 			used = strlcat(tmp, "(repeat) ", sizeof tmp);
85 			if (used >= sizeof tmp)
86 				continue;
87 		}
88 		cmd_list_print(bd->cmdlist, tmp + used, (sizeof tmp) - used);
89 		ctx->print(ctx, "%s", tmp);
90 	}
91 
92 	return (0);
93 }
94 
95 int
96 cmd_list_keys_table(struct cmd *self, struct cmd_ctx *ctx)
97 {
98 	struct cmd_target_data		*data = self->data;
99 	const struct mode_key_table	*mtab;
100 	struct mode_key_binding		*mbind;
101 	const char			*key, *cmdstr, *mode;
102 	int			 	 width, keywidth;
103 
104 	if ((mtab = mode_key_findtable(data->target)) == NULL) {
105 		ctx->error(ctx, "unknown key table: %s", data->target);
106 		return (-1);
107 	}
108 
109 	width = 0;
110 	SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
111 		key = key_string_lookup_key(mbind->key);
112 		if (key == NULL)
113 			continue;
114 
115 		keywidth = strlen(key) + 1;
116 		if (keywidth > width)
117 			width = keywidth;
118 	}
119 
120 	SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
121 		key = key_string_lookup_key(mbind->key);
122 		if (key == NULL)
123 			continue;
124 
125 		mode = "";
126 		if (mbind->mode != 0)
127 			mode = "(command mode) ";
128 		cmdstr = mode_key_tostring(mtab->cmdstr, mbind->cmd);
129 		if (cmdstr != NULL)
130 			ctx->print(ctx, "%*s: %s%s", width, key, mode, cmdstr);
131 	}
132 
133 	return (0);
134 }
135