external/bsd/tmux/dist/cmd-bind-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 #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
  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
  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 }