xref: /minix/external/bsd/tmux/dist/cmd-bind-key.c (revision 0a6a1f1d)
1 /* Id */
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 <stdlib.h>
22 #include <string.h>
23 
24 #include "tmux.h"
25 
26 /*
27  * Bind a key to a command, this recurses through cmd_*.
28  */
29 
30 enum cmd_retval	 cmd_bind_key_exec(struct cmd *, struct cmd_q *);
31 
32 enum cmd_retval	 cmd_bind_key_table(struct cmd *, struct cmd_q *, int);
33 
34 const struct cmd_entry cmd_bind_key_entry = {
35 	"bind-key", "bind",
36 	"cnrt:", 1, -1,
37 	"[-cnr] [-t key-table] key command [arguments]",
38 	0,
39 	NULL,
40 	cmd_bind_key_exec
41 };
42 
43 enum cmd_retval
cmd_bind_key_exec(struct cmd * self,struct cmd_q * cmdq)44 cmd_bind_key_exec(struct cmd *self, struct cmd_q *cmdq)
45 {
46 	struct args	*args = self->args;
47 	char		*cause;
48 	struct cmd_list	*cmdlist;
49 	int		 key;
50 
51 	if (args_has(args, 't')) {
52 		if (args->argc != 2 && args->argc != 3) {
53 			cmdq_error(cmdq, "not enough arguments");
54 			return (CMD_RETURN_ERROR);
55 		}
56 	} else {
57 		if (args->argc < 2) {
58 			cmdq_error(cmdq, "not enough arguments");
59 			return (CMD_RETURN_ERROR);
60 		}
61 	}
62 
63 	key = key_string_lookup_string(args->argv[0]);
64 	if (key == KEYC_NONE) {
65 		cmdq_error(cmdq, "unknown key: %s", args->argv[0]);
66 		return (CMD_RETURN_ERROR);
67 	}
68 
69 	if (args_has(args, 't'))
70 		return (cmd_bind_key_table(self, cmdq, key));
71 
72 	cmdlist = cmd_list_parse(args->argc - 1, args->argv + 1, NULL, 0,
73 	    &cause);
74 	if (cmdlist == NULL) {
75 		cmdq_error(cmdq, "%s", cause);
76 		free(cause);
77 		return (CMD_RETURN_ERROR);
78 	}
79 
80 	if (!args_has(args, 'n'))
81 	    key |= KEYC_PREFIX;
82 	key_bindings_add(key, args_has(args, 'r'), cmdlist);
83 	return (CMD_RETURN_NORMAL);
84 }
85 
86 enum cmd_retval
cmd_bind_key_table(struct cmd * self,struct cmd_q * cmdq,int key)87 cmd_bind_key_table(struct cmd *self, struct cmd_q *cmdq, int key)
88 {
89 	struct args			*args = self->args;
90 	const char			*tablename;
91 	const struct mode_key_table	*mtab;
92 	struct mode_key_binding		*mbind, mtmp;
93 	enum mode_key_cmd		 cmd;
94 	const char			*arg;
95 
96 	tablename = args_get(args, 't');
97 	if ((mtab = mode_key_findtable(tablename)) == NULL) {
98 		cmdq_error(cmdq, "unknown key table: %s", tablename);
99 		return (CMD_RETURN_ERROR);
100 	}
101 
102 	cmd = mode_key_fromstring(mtab->cmdstr, args->argv[1]);
103 	if (cmd == MODEKEY_NONE) {
104 		cmdq_error(cmdq, "unknown command: %s", args->argv[1]);
105 		return (CMD_RETURN_ERROR);
106 	}
107 
108 	if (cmd != MODEKEYCOPY_COPYPIPE) {
109 		if (args->argc != 2) {
110 			cmdq_error(cmdq, "no argument allowed");
111 			return (CMD_RETURN_ERROR);
112 		}
113 		arg = NULL;
114 	} else {
115 		if (args->argc != 3) {
116 			cmdq_error(cmdq, "no argument given");
117 			return (CMD_RETURN_ERROR);
118 		}
119 		arg = args->argv[2];
120 	}
121 
122 	mtmp.key = key;
123 	mtmp.mode = !!args_has(args, 'c');
124 	if ((mbind = RB_FIND(mode_key_tree, mtab->tree, &mtmp)) == NULL) {
125 		mbind = xmalloc(sizeof *mbind);
126 		mbind->key = mtmp.key;
127 		mbind->mode = mtmp.mode;
128 		RB_INSERT(mode_key_tree, mtab->tree, mbind);
129 	}
130 	mbind->cmd = cmd;
131 	mbind->arg = arg != NULL ? xstrdup(arg) : NULL;
132 	return (CMD_RETURN_NORMAL);
133 }
134