external/bsd/tmux/dist/cmd-unbind-key.c

   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
  23 #include "tmux.h"
  24
  25 /*
  26  * Unbind key from command.
  27  */
  28
  29 enum cmd_retval  cmd_unbind_key_exec(struct cmd *, struct cmd_q *);
  30 enum cmd_retval  cmd_unbind_key_table(struct cmd *, struct cmd_q *, int);
  31
  32 const struct cmd_entry cmd_unbind_key_entry = {
  33         "unbind-key", "unbind",
  34         "acnt:", 0, 1,
  35         "[-acn] [-t key-table] key",
  36         0,
  37         NULL,
  38         cmd_unbind_key_exec
  39 };
  40
  41 enum cmd_retval
  42 cmd_unbind_key_exec(struct cmd *self, struct cmd_q *cmdq)
  43 {
  44         struct args             *args = self->args;
  45         struct key_binding      *bd;
  46         int                      key;
  47
  48         if (!args_has(args, 'a')) {
  49                 if (args->argc != 1) {
  50                         cmdq_error(cmdq, "missing key");
  51                         return (CMD_RETURN_ERROR);
  52                 }
  53                 key = key_string_lookup_string(args->argv[0]);
  54                 if (key == KEYC_NONE) {
  55                         cmdq_error(cmdq, "unknown key: %s", args->argv[0]);
  56                         return (CMD_RETURN_ERROR);
  57                 }
  58         } else {
  59                 if (args->argc != 0) {
  60                         cmdq_error(cmdq, "key given with -a");
  61                         return (CMD_RETURN_ERROR);
  62                 }
  63                 key = KEYC_NONE;
  64         }
  65
  66         if (args_has(args, 't'))
  67                 return (cmd_unbind_key_table(self, cmdq, key));
  68
  69         if (key == KEYC_NONE) {
  70                 while (!RB_EMPTY(&key_bindings)) {
  71                         bd = RB_ROOT(&key_bindings);
  72                         key_bindings_remove(bd->key);
  73                 }
  74                 return (CMD_RETURN_NORMAL);
  75         }
  76
  77         if (!args_has(args, 'n'))
  78                 key |= KEYC_PREFIX;
  79         key_bindings_remove(key);
  80         return (CMD_RETURN_NORMAL);
  81 }
  82
  83 enum cmd_retval
  84 cmd_unbind_key_table(struct cmd *self, struct cmd_q *cmdq, int key)
  85 {
  86         struct args                     *args = self->args;
  87         const char                      *tablename;
  88         const struct mode_key_table     *mtab;
  89         struct mode_key_binding         *mbind, mtmp;
  90
  91         tablename = args_get(args, 't');
  92         if ((mtab = mode_key_findtable(tablename)) == NULL) {
  93                 cmdq_error(cmdq, "unknown key table: %s", tablename);
  94                 return (CMD_RETURN_ERROR);
  95         }
  96
  97         if (key == KEYC_NONE) {
  98                 while (!RB_EMPTY(mtab->tree)) {
  99                         mbind = RB_ROOT(mtab->tree);
 100                         RB_REMOVE(mode_key_tree, mtab->tree, mbind);
 101                         free(mbind);
 102                 }
 103                 return (CMD_RETURN_NORMAL);
 104         }
 105
 106         mtmp.key = key;
 107         mtmp.mode = !!args_has(args, 'c');
 108         if ((mbind = RB_FIND(mode_key_tree, mtab->tree, &mtmp)) != NULL) {
 109                 RB_REMOVE(mode_key_tree, mtab->tree, mbind);
 110                 free(mbind);
 111         }
 112         return (CMD_RETURN_NORMAL);
 113 }