xref: /openbsd/usr.bin/tmux/cmd-bind-key.c (revision d8b32369)
1 /* $OpenBSD: cmd-bind-key.c,v 1.46 2021/08/27 17:25:55 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 args_parse_type	cmd_bind_key_args_parse(struct args *, u_int,
31 				    char **);
32 static enum cmd_retval		cmd_bind_key_exec(struct cmd *,
33 				    struct cmdq_item *);
34 
35 const struct cmd_entry cmd_bind_key_entry = {
36 	.name = "bind-key",
37 	.alias = "bind",
38 
39 	.args = { "nrN:T:", 1, -1, cmd_bind_key_args_parse },
40 	.usage = "[-nr] [-T key-table] [-N note] key "
41 	         "[command [arguments]]",
42 
43 	.flags = CMD_AFTERHOOK,
44 	.exec = cmd_bind_key_exec
45 };
46 
47 static enum args_parse_type
cmd_bind_key_args_parse(__unused struct args * args,__unused u_int idx,__unused char ** cause)48 cmd_bind_key_args_parse(__unused struct args *args, __unused u_int idx,
49     __unused char **cause)
50 {
51 	return (ARGS_PARSE_COMMANDS_OR_STRING);
52 }
53 
54 static enum cmd_retval
cmd_bind_key_exec(struct cmd * self,struct cmdq_item * item)55 cmd_bind_key_exec(struct cmd *self, struct cmdq_item *item)
56 {
57 	struct args		 *args = cmd_get_args(self);
58 	key_code		  key;
59 	const char		 *tablename, *note = args_get(args, 'N');
60 	struct cmd_parse_result	 *pr;
61 	int			  repeat;
62 	struct args_value	 *value;
63 	u_int			  count = args_count(args);
64 
65 	key = key_string_lookup_string(args_string(args, 0));
66 	if (key == KEYC_NONE || key == KEYC_UNKNOWN) {
67 		cmdq_error(item, "unknown key: %s", args_string(args, 0));
68 		return (CMD_RETURN_ERROR);
69 	}
70 
71 	if (args_has(args, 'T'))
72 		tablename = args_get(args, 'T');
73 	else if (args_has(args, 'n'))
74 		tablename = "root";
75 	else
76 		tablename = "prefix";
77 	repeat = args_has(args, 'r');
78 
79 	if (count == 1) {
80 		key_bindings_add(tablename, key, note, repeat, NULL);
81 		return (CMD_RETURN_NORMAL);
82 	}
83 
84 	value = args_value(args, 1);
85 	if (count == 2 && value->type == ARGS_COMMANDS) {
86 		key_bindings_add(tablename, key, note, repeat, value->cmdlist);
87 		value->cmdlist->references++;
88 		return (CMD_RETURN_NORMAL);
89 	}
90 
91 	if (count == 2)
92 		pr = cmd_parse_from_string(args_string(args, 1), NULL);
93 	else {
94 		pr = cmd_parse_from_arguments(args_values(args) + 1, count - 1,
95 		    NULL);
96 	}
97 	switch (pr->status) {
98 	case CMD_PARSE_ERROR:
99 		cmdq_error(item, "%s", pr->error);
100 		free(pr->error);
101 		return (CMD_RETURN_ERROR);
102 	case CMD_PARSE_SUCCESS:
103 		break;
104 	}
105 	key_bindings_add(tablename, key, note, repeat, pr->cmdlist);
106 	return (CMD_RETURN_NORMAL);
107 }
108