xref: /openbsd-src/usr.bin/tmux/cmd-bind-key.c (revision 24bb5fcea3ed904bc467217bdaadb5dfc618d5bf)
1 /* $OpenBSD: cmd-bind-key.c,v 1.38 2020/09/08 10:19:19 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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 <stdlib.h>
22 #include <string.h>
23 
24 #include "tmux.h"
25 
26 /*
27  * Bind a key to a command.
28  */
29 
30 static enum cmd_retval	cmd_bind_key_exec(struct cmd *, struct cmdq_item *);
31 
32 const struct cmd_entry cmd_bind_key_entry = {
33 	.name = "bind-key",
34 	.alias = "bind",
35 
36 	.args = { "nrN:T:", 1, -1 },
37 	.usage = "[-nr] [-T key-table] [-N note] key "
38 	         "[command [arguments]]",
39 
40 	.flags = CMD_AFTERHOOK,
41 	.exec = cmd_bind_key_exec
42 };
43 
44 static enum cmd_retval
45 cmd_bind_key_exec(struct cmd *self, struct cmdq_item *item)
46 {
47 	struct args		 *args = cmd_get_args(self);
48 	key_code		  key;
49 	const char		 *tablename, *note = args_get(args, 'N');
50 	struct cmd_parse_result	 *pr;
51 	char			**argv = args->argv;
52 	int			  argc = args->argc, repeat;
53 
54 	key = key_string_lookup_string(argv[0]);
55 	if (key == KEYC_NONE || key == KEYC_UNKNOWN) {
56 		cmdq_error(item, "unknown key: %s", argv[0]);
57 		return (CMD_RETURN_ERROR);
58 	}
59 
60 	if (args_has(args, 'T'))
61 		tablename = args_get(args, 'T');
62 	else if (args_has(args, 'n'))
63 		tablename = "root";
64 	else
65 		tablename = "prefix";
66 	repeat = args_has(args, 'r');
67 
68 	if (argc != 1) {
69 		if (argc == 2)
70 			pr = cmd_parse_from_string(argv[1], NULL);
71 		else
72 			pr = cmd_parse_from_arguments(argc - 1, argv + 1, NULL);
73 		switch (pr->status) {
74 		case CMD_PARSE_EMPTY:
75 			cmdq_error(item, "empty command");
76 			return (CMD_RETURN_ERROR);
77 		case CMD_PARSE_ERROR:
78 			cmdq_error(item, "%s", pr->error);
79 			free(pr->error);
80 			return (CMD_RETURN_ERROR);
81 		case CMD_PARSE_SUCCESS:
82 			break;
83 		}
84 		key_bindings_add(tablename, key, note, repeat, pr->cmdlist);
85 	} else
86 		key_bindings_add(tablename, key, note, repeat, NULL);
87 	return (CMD_RETURN_NORMAL);
88 }
89