cmd-list-keys.c

   1 /* $OpenBSD$ */
   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 <string.h>
  22
  23 #include "tmux.h"
  24
  25 /*
  26  * List key bindings.
  27  */
  28
  29 enum cmd_retval  cmd_list_keys_exec(struct cmd *, struct cmd_q *);
  30 enum cmd_retval  cmd_list_keys_table(struct cmd *, struct cmd_q *);
  31
  32 const struct cmd_entry cmd_list_keys_entry = {
  33         "list-keys", "lsk",
  34         "t:", 0, 0,
  35         "[-t key-table]",
  36         0,
  37         NULL,
  38         cmd_list_keys_exec
  39 };
  40
  41 enum cmd_retval
  42 cmd_list_keys_exec(struct cmd *self, struct cmd_q *cmdq)
  43 {
  44         struct args             *args = self->args;
  45         struct key_binding      *bd;
  46         const char              *key;
  47         char                     tmp[BUFSIZ], flags[8];
  48         size_t                   used;
  49         int                      width, keywidth;
  50
  51         if (args_has(args, 't'))
  52                 return (cmd_list_keys_table(self, cmdq));
  53
  54         width = 0;
  55
  56         RB_FOREACH(bd, key_bindings, &key_bindings) {
  57                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  58                 if (key == NULL)
  59                         continue;
  60
  61                 keywidth = strlen(key);
  62                 if (!(bd->key & KEYC_PREFIX)) {
  63                         if (bd->can_repeat)
  64                                 keywidth += 4;
  65                         else
  66                                 keywidth += 3;
  67                 } else if (bd->can_repeat)
  68                         keywidth += 3;
  69                 if (keywidth > width)
  70                         width = keywidth;
  71         }
  72
  73         RB_FOREACH(bd, key_bindings, &key_bindings) {
  74                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  75                 if (key == NULL)
  76                         continue;
  77
  78                 *flags = '\0';
  79                 if (!(bd->key & KEYC_PREFIX)) {
  80                         if (bd->can_repeat)
  81                                 xsnprintf(flags, sizeof flags, "-rn ");
  82                         else
  83                                 xsnprintf(flags, sizeof flags, "-n ");
  84                 } else if (bd->can_repeat)
  85                         xsnprintf(flags, sizeof flags, "-r ");
  86
  87                 used = xsnprintf(tmp, sizeof tmp, "%s%*s ",
  88                     flags, (int) (width - strlen(flags)), key);
  89                 if (used >= sizeof tmp)
  90                         continue;
  91
  92                 cmd_list_print(bd->cmdlist, tmp + used, (sizeof tmp) - used);
  93                 cmdq_print(cmdq, "bind-key %s", tmp);
  94         }
  95
  96         return (CMD_RETURN_NORMAL);
  97 }
  98
  99 enum cmd_retval
 100 cmd_list_keys_table(struct cmd *self, struct cmd_q *cmdq)
 101 {
 102         struct args                     *args = self->args;
 103         const char                      *tablename;
 104         const struct mode_key_table     *mtab;
 105         struct mode_key_binding         *mbind;
 106         const char                      *key, *cmdstr, *mode;
 107         int                              width, keywidth, any_mode;
 108
 109         tablename = args_get(args, 't');
 110         if ((mtab = mode_key_findtable(tablename)) == NULL) {
 111                 cmdq_error(cmdq, "unknown key table: %s", tablename);
 112                 return (CMD_RETURN_ERROR);
 113         }
 114
 115         width = 0;
 116         any_mode = 0;
 117         RB_FOREACH(mbind, mode_key_tree, mtab->tree) {
 118                 key = key_string_lookup_key(mbind->key);
 119                 if (key == NULL)
 120                         continue;
 121
 122                 if (mbind->mode != 0)
 123                         any_mode = 1;
 124
 125                 keywidth = strlen(key);
 126                 if (keywidth > width)
 127                         width = keywidth;
 128         }
 129
 130         RB_FOREACH(mbind, mode_key_tree, mtab->tree) {
 131                 key = key_string_lookup_key(mbind->key);
 132                 if (key == NULL)
 133                         continue;
 134
 135                 mode = "";
 136                 if (mbind->mode != 0)
 137                         mode = "c";
 138                 cmdstr = mode_key_tostring(mtab->cmdstr, mbind->cmd);
 139                 if (cmdstr != NULL) {
 140                         cmdq_print(cmdq, "bind-key -%st %s%s %*s %s%s%s%s",
 141                             mode, any_mode && *mode == '\0' ? " " : "",
 142                             mtab->name, (int) width, key, cmdstr,
 143                             mbind->arg != NULL ? " \"" : "",
 144                             mbind->arg != NULL ? mbind->arg : "",
 145                             mbind->arg != NULL ? "\"": "");
 146                 }
 147         }
 148
 149         return (CMD_RETURN_NORMAL);
 150 }