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Annotation of embedaddon/tmux/cmd-unbind-key.c, revision 1.1

1.1     ! misho       1: /* $OpenBSD$ */
        !             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: 
        !            23: #include "tmux.h"
        !            24: 
        !            25: /*
        !            26:  * Unbind key from command.
        !            27:  */
        !            28: 
        !            29: static enum cmd_retval cmd_unbind_key_exec(struct cmd *, struct cmdq_item *);
        !            30: 
        !            31: const struct cmd_entry cmd_unbind_key_entry = {
        !            32:        .name = "unbind-key",
        !            33:        .alias = "unbind",
        !            34: 
        !            35:        .args = { "anT:", 0, 1 },
        !            36:        .usage = "[-an] [-T key-table] key",
        !            37: 
        !            38:        .flags = CMD_AFTERHOOK,
        !            39:        .exec = cmd_unbind_key_exec
        !            40: };
        !            41: 
        !            42: static enum cmd_retval
        !            43: cmd_unbind_key_exec(struct cmd *self, struct cmdq_item *item)
        !            44: {
        !            45:        struct args     *args = self->args;
        !            46:        key_code         key;
        !            47:        const char      *tablename;
        !            48: 
        !            49:        if (!args_has(args, 'a')) {
        !            50:                if (args->argc != 1) {
        !            51:                        cmdq_error(item, "missing key");
        !            52:                        return (CMD_RETURN_ERROR);
        !            53:                }
        !            54:                key = key_string_lookup_string(args->argv[0]);
        !            55:                if (key == KEYC_NONE || key == KEYC_UNKNOWN) {
        !            56:                        cmdq_error(item, "unknown key: %s", args->argv[0]);
        !            57:                        return (CMD_RETURN_ERROR);
        !            58:                }
        !            59:        } else {
        !            60:                if (args->argc != 0) {
        !            61:                        cmdq_error(item, "key given with -a");
        !            62:                        return (CMD_RETURN_ERROR);
        !            63:                }
        !            64:                key = KEYC_UNKNOWN;
        !            65:        }
        !            66: 
        !            67:        if (key == KEYC_UNKNOWN) {
        !            68:                tablename = args_get(args, 'T');
        !            69:                if (tablename == NULL) {
        !            70:                        key_bindings_remove_table("root");
        !            71:                        key_bindings_remove_table("prefix");
        !            72:                        return (CMD_RETURN_NORMAL);
        !            73:                }
        !            74:                if (key_bindings_get_table(tablename, 0) == NULL) {
        !            75:                        cmdq_error(item, "table %s doesn't exist", tablename);
        !            76:                        return (CMD_RETURN_ERROR);
        !            77:                }
        !            78:                key_bindings_remove_table(tablename);
        !            79:                return (CMD_RETURN_NORMAL);
        !            80:        }
        !            81: 
        !            82:        if (args_has(args, 'T')) {
        !            83:                tablename = args_get(args, 'T');
        !            84:                if (key_bindings_get_table(tablename, 0) == NULL) {
        !            85:                        cmdq_error(item, "table %s doesn't exist", tablename);
        !            86:                        return (CMD_RETURN_ERROR);
        !            87:                }
        !            88:        } else if (args_has(args, 'n'))
        !            89:                tablename = "root";
        !            90:        else
        !            91:                tablename = "prefix";
        !            92:        key_bindings_remove(tablename, key);
        !            93:        return (CMD_RETURN_NORMAL);
        !            94: }