lisp/tmm.el

   1 ;;; tmm.el --- text mode access to menu-bar
   2
   3 ;; Copyright (C) 1994, 1995, 1996, 2000, 2001, 2002, 2003,
   4 ;;   2004, 2005, 2006, 2007 Free Software Foundation, Inc.
   5
   6 ;; Author: Ilya Zakharevich <ilya@math.mps.ohio-state.edu>
   7 ;; Maintainer: FSF
   8 ;; Keywords: convenience
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 3, or (at your option)
  15 ;; any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  25 ;; Boston, MA 02110-1301, USA.
  26
  27 ;;; Commentary:
  28
  29 ;; This package provides text mode access to the menu bar.
  30
  31 ;;; Code:
  32
  33 (require 'electric)
  34
  35 (defgroup tmm nil
  36   "Text mode access to menu-bar."
  37   :prefix "tmm-"
  38   :group 'menu)
  39
  40 ;;; The following will be localized, added only to pacify the compiler.
  41 (defvar tmm-short-cuts)
  42 (defvar tmm-old-mb-map nil)
  43 (defvar tmm-old-comp-map)
  44 (defvar tmm-c-prompt nil)
  45 (defvar tmm-km-list)
  46 (defvar tmm-next-shortcut-digit)
  47 (defvar tmm-table-undef)
  48
  49 ;;;###autoload (define-key global-map "\M-`" 'tmm-menubar)
  50 ;;;###autoload (define-key global-map [f10] 'tmm-menubar)
  51 ;;;###autoload (define-key global-map [menu-bar mouse-1] 'tmm-menubar-mouse)
  52
  53 ;;;###autoload
  54 (defun tmm-menubar (&optional x-position)
  55   "Text-mode emulation of looking and choosing from a menubar.
  56 See the documentation for `tmm-prompt'.
  57 X-POSITION, if non-nil, specifies a horizontal position within the menu bar;
  58 we make that menu bar item (the one at that position) the default choice."
  59   (interactive)
  60   (run-hooks 'menu-bar-update-hook)
  61   ;; Obey menu-bar-final-items; put those items last.
  62   (let ((menu-bar (tmm-get-keybind [menu-bar]))
  63         menu-bar-item)
  64     (let ((list menu-bar-final-items))
  65       (while list
  66         (let ((item (car list)))
  67           ;; ITEM is the name of an item that we want to put last.
  68           ;; Find it in MENU-BAR and move it to the end.
  69           (let ((this-one (assq item menu-bar)))
  70             (setq menu-bar (append (delq this-one menu-bar)
  71                                    (list this-one)))))
  72         (setq list (cdr list))))
  73     (if x-position
  74         (let ((tail menu-bar) (column 0)
  75               this-one name visible)
  76           (while (and tail (<= column x-position))
  77             (setq this-one (car tail))
  78             (if (and (consp this-one)
  79                      (consp (cdr this-one))
  80                      (setq name  ;simple menu
  81                            (cond ((stringp (nth 1  this-one))
  82                                   (nth 1  this-one))
  83                                  ;extended menu
  84                                  ((stringp (nth 2 this-one))
  85                                   (setq visible (plist-get
  86                                                  (nthcdr 4 this-one) :visible))
  87                                   (unless (and visible (not (eval visible)))
  88                                     (nth 2 this-one))))))
  89                 (setq column (+ column (length name) 1)))
  90             (setq tail (cdr tail)))
  91           (setq menu-bar-item (car this-one))))
  92     (tmm-prompt menu-bar nil menu-bar-item)))
  93
  94 ;;;###autoload
  95 (defun tmm-menubar-mouse (event)
  96   "Text-mode emulation of looking and choosing from a menubar.
  97 This command is used when you click the mouse in the menubar
  98 on a console which has no window system but does have a mouse.
  99 See the documentation for `tmm-prompt'."
 100   (interactive "e")
 101   (tmm-menubar (car (posn-x-y (event-start event)))))
 102
 103 (defcustom tmm-mid-prompt "==>"
 104   "*String to insert between shortcut and menu item.
 105 If nil, there will be no shortcuts. It should not consist only of spaces,
 106 or else the correct item might not be found in the `*Completions*' buffer."
 107   :type 'string
 108   :group 'tmm)
 109
 110 (defvar tmm-mb-map nil
 111   "A place to store minibuffer map.")
 112
 113 (defcustom tmm-completion-prompt
 114   "Press PageUp key to reach this buffer from the minibuffer.
 115 Alternatively, you can use Up/Down keys (or your History keys) to change
 116 the item in the minibuffer, and press RET when you are done, or press the
 117 marked letters to pick up your choice.  Type C-g or ESC ESC ESC to cancel.
 118 "
 119   "*Help text to insert on the top of the completion buffer.
 120 To save space, you can set this to nil,
 121 in which case the standard introduction text is deleted too."
 122   :type '(choice string (const nil))
 123   :group 'tmm)
 124
 125 (defcustom tmm-shortcut-style '(downcase upcase)
 126   "*What letters to use as menu shortcuts.
 127 Must be either one of the symbols `downcase' or `upcase',
 128 or else a list of the two in the order you prefer."
 129   :type '(choice (const downcase)
 130                  (const upcase)
 131                  (repeat (choice (const downcase) (const upcase))))
 132   :group 'tmm)
 133
 134 (defcustom tmm-shortcut-words 2
 135   "*How many successive words to try for shortcuts, nil means all.
 136 If you use only one of `downcase' or `upcase' for `tmm-shortcut-style',
 137 specify nil for this variable."
 138   :type '(choice integer (const nil))
 139   :group 'tmm)
 140
 141 (defface tmm-inactive
 142   '((t :inherit shadow))
 143   "Face used for inactive menu items."
 144   :group 'tmm)
 145
 146 ;;;###autoload
 147 (defun tmm-prompt (menu &optional in-popup default-item)
 148   "Text-mode emulation of calling the bindings in keymap.
 149 Creates a text-mode menu of possible choices.  You can access the elements
 150 in the menu in two ways:
 151    *)  via history mechanism from minibuffer;
 152    *)  Or via completion-buffer that is automatically shown.
 153 The last alternative is currently a hack, you cannot use mouse reliably.
 154
 155 MENU is like the MENU argument to `x-popup-menu': either a
 156 keymap or an alist of alists.
 157 DEFAULT-ITEM, if non-nil, specifies an initial default choice.
 158 Its value should be an event that has a binding in MENU."
 159   ;; If the optional argument IN-POPUP is t,
 160   ;; then MENU is an alist of elements of the form (STRING . VALUE).
 161   ;; That is used for recursive calls only.
 162   (let ((gl-str "Menu bar")  ;; The menu bar itself is not a menu keymap
 163                                         ; so it doesn't have a name.
 164         tmm-km-list out history history-len tmm-table-undef tmm-c-prompt
 165         tmm-old-mb-map tmm-old-comp-map tmm-short-cuts
 166         chosen-string choice
 167         (not-menu (not (keymapp menu))))
 168     (run-hooks 'activate-menubar-hook)
 169     ;; Compute tmm-km-list from MENU.
 170     ;; tmm-km-list is an alist of (STRING . MEANING).
 171     ;; It has no other elements.
 172     ;; The order of elements in tmm-km-list is the order of the menu bar.
 173     (mapc (lambda (elt)
 174             (if (stringp elt)
 175                 (setq gl-str elt)
 176               (and (listp elt) (tmm-get-keymap elt not-menu))))
 177             menu)
 178     ;; Choose an element of tmm-km-list; put it in choice.
 179     (if (and not-menu (= 1 (length tmm-km-list)))
 180         ;; If this is the top-level of an x-popup-menu menu,
 181         ;; and there is just one pane, choose that one silently.
 182         ;; This way we only ask the user one question,
 183         ;; for which element of that pane.
 184         (setq choice (cdr (car tmm-km-list)))
 185       (unless tmm-km-list
 186         (error "Empty menu reached"))
 187       (and tmm-km-list
 188            (let ((index-of-default 0))
 189              (if tmm-mid-prompt
 190                  (setq tmm-km-list (tmm-add-shortcuts tmm-km-list))
 191                t)
 192              ;; Find the default item's index within the menu bar.
 193              ;; We use this to decide the initial minibuffer contents
 194              ;; and initial history position.
 195              (if default-item
 196                  (let ((tail menu) visible)
 197                    (while (and tail
 198                                (not (eq (car-safe (car tail)) default-item)))
 199                      ;; Be careful to count only the elements of MENU
 200                      ;; that actually constitute menu bar items.
 201                      (if (and (consp (car tail))
 202                               (or (stringp (car-safe (cdr (car tail))))
 203                                   (and
 204                                    (eq (car-safe (cdr (car tail))) 'menu-item)
 205                                    (progn
 206                                      (setq visible
 207                                            (plist-get
 208                                             (nthcdr 4 (car tail)) :visible))
 209                                      (or (not visible) (eval visible))))))
 210                          (setq index-of-default (1+ index-of-default)))
 211                      (setq tail (cdr tail)))))
 212              (let ((prompt (concat "^." (regexp-quote tmm-mid-prompt))))
 213                (setq history
 214                      (reverse (delq nil
 215                                     (mapcar
 216                                      (lambda (elt)
 217                                        (if (string-match prompt (car elt))
 218                                            (car elt)))
 219                                      tmm-km-list)))))
 220              (setq history-len (length history))
 221              (setq history (append history history history history))
 222              (setq tmm-c-prompt (nth (- history-len 1 index-of-default) history))
 223              (add-hook 'minibuffer-setup-hook 'tmm-add-prompt)
 224              (if default-item
 225                  (setq out (car (nth index-of-default tmm-km-list)))
 226                (save-excursion
 227                  (unwind-protect
 228                      (setq out
 229                            (completing-read
 230                             (concat gl-str
 231                                     " (up/down to change, PgUp to menu): ")
 232                             tmm-km-list nil t nil
 233                             (cons 'history
 234                                   (- (* 2 history-len) index-of-default))))
 235                    (save-excursion
 236                      (remove-hook 'minibuffer-setup-hook 'tmm-add-prompt)
 237                      (if (get-buffer "*Completions*")
 238                          (progn
 239                            (set-buffer "*Completions*")
 240                            (use-local-map tmm-old-comp-map)
 241                            (bury-buffer (current-buffer))))))))))
 242       (setq choice (cdr (assoc out tmm-km-list)))
 243       (and (null choice)
 244            (> (length out) (length tmm-c-prompt))
 245            (string= (substring out 0 (length tmm-c-prompt)) tmm-c-prompt)
 246            (setq out (substring out (length tmm-c-prompt))
 247                  choice (cdr (assoc out tmm-km-list))))
 248       (and (null choice) out
 249            (setq out (try-completion out tmm-km-list)
 250                  choice (cdr (assoc  out tmm-km-list)))))
 251     ;; CHOICE is now (STRING . MEANING).  Separate the two parts.
 252     (setq chosen-string (car choice))
 253     (setq choice (cdr choice))
 254     (cond (in-popup
 255            ;; We just did the inner level of a -popup menu.
 256            choice)
 257           ;; We just did the outer level.  Do the inner level now.
 258           (not-menu (tmm-prompt choice t))
 259           ;; We just handled a menu keymap and found another keymap.
 260           ((keymapp choice)
 261            (if (symbolp choice)
 262                (setq choice (indirect-function choice)))
 263            (condition-case nil
 264                (require 'mouse)
 265              (error nil))
 266            (condition-case nil
 267                (x-popup-menu nil choice) ; Get the shortcuts
 268              (error nil))
 269            (tmm-prompt choice))
 270           ;; We just handled a menu keymap and found a command.
 271           (choice
 272            (if chosen-string
 273                (progn
 274                  (setq last-command-event chosen-string)
 275                  (call-interactively choice))
 276              choice)))))
 277
 278 (defun tmm-add-shortcuts (list)
 279   "Adds shortcuts to cars of elements of the list.
 280 Takes a list of lists with a string as car, returns list with
 281 shortcuts added to these cars.
 282 Stores a list of all the shortcuts in the free variable `tmm-short-cuts'."
 283   (let ((tmm-next-shortcut-digit ?0))
 284     (mapcar 'tmm-add-one-shortcut (reverse list))))
 285
 286 (defsubst tmm-add-one-shortcut (elt)
 287 ;; uses the free vars tmm-next-shortcut-digit and tmm-short-cuts
 288   (cond
 289    ((eq (cddr elt) 'ignore)
 290     (cons (concat " " (make-string (length tmm-mid-prompt) ?\-)
 291                   (car elt))
 292           (cdr elt)))
 293    (t
 294     (let* ((str (car elt))
 295            (paren (string-match "(" str))
 296            (pos 0) (word 0) char)
 297       (catch 'done                             ; ??? is this slow?
 298         (while (and (or (not tmm-shortcut-words)   ; no limit on words
 299                         (< word tmm-shortcut-words)) ; try n words
 300                     (setq pos (string-match "\\w+" str pos)) ; get next word
 301                     (not (and paren (> pos paren)))) ; don't go past "(binding.."
 302           (if (or (= pos 0)
 303                   (/= (aref str (1- pos)) ?.)) ; avoid file extensions
 304               (let ((shortcut-style
 305                      (if (listp tmm-shortcut-style) ; convert to list
 306                          tmm-shortcut-style
 307                        (list tmm-shortcut-style))))
 308                 (while shortcut-style ; try upcase and downcase variants
 309                   (setq char (funcall (car shortcut-style) (aref str pos)))
 310                   (if (not (memq char tmm-short-cuts)) (throw 'done char))
 311                   (setq shortcut-style (cdr shortcut-style)))))
 312           (setq word (1+ word))
 313           (setq pos (match-end 0)))
 314         (while (<= tmm-next-shortcut-digit ?9) ; no letter shortcut, pick a digit
 315           (setq char tmm-next-shortcut-digit)
 316           (setq tmm-next-shortcut-digit (1+ tmm-next-shortcut-digit))
 317           (if (not (memq char tmm-short-cuts)) (throw 'done char)))
 318         (setq char nil))
 319       (if char (setq tmm-short-cuts (cons char tmm-short-cuts)))
 320       (cons (concat (if char (concat (char-to-string char) tmm-mid-prompt)
 321                       ;; keep them lined up in columns
 322                       (make-string (1+ (length tmm-mid-prompt)) ?\s))
 323                     str)
 324             (cdr elt))))))
 325
 326 ;; This returns the old map.
 327 (defun tmm-define-keys (minibuffer)
 328   (let ((map (make-sparse-keymap)))
 329     (suppress-keymap map t)
 330     (mapc
 331      (lambda (c)
 332        (if (listp tmm-shortcut-style)
 333            (define-key map (char-to-string c) 'tmm-shortcut)
 334          ;; only one kind of letters are shortcuts, so map both upcase and
 335          ;; downcase input to the same
 336          (define-key map (char-to-string (downcase c)) 'tmm-shortcut)
 337          (define-key map (char-to-string (upcase c)) 'tmm-shortcut)))
 338      tmm-short-cuts)
 339     (if minibuffer
 340         (progn
 341           (define-key map [pageup] 'tmm-goto-completions)
 342           (define-key map [prior] 'tmm-goto-completions)
 343           (define-key map "\ev" 'tmm-goto-completions)
 344           (define-key map "\C-n" 'next-history-element)
 345           (define-key map "\C-p" 'previous-history-element)))
 346     (prog1 (current-local-map)
 347       (use-local-map (append map (current-local-map))))))
 348
 349 (defun tmm-completion-delete-prompt ()
 350   (set-buffer standard-output)
 351   (goto-char 1)
 352   (delete-region 1 (search-forward "Possible completions are:\n")))
 353
 354 (defun tmm-remove-inactive-mouse-face ()
 355   "Remove the mouse-face property from inactive menu items."
 356   (let ((inhibit-read-only t)
 357         (inactive-string
 358          (concat " " (make-string (length tmm-mid-prompt) ?\-)))
 359         next)
 360     (save-excursion
 361       (goto-char (point-min))
 362       (while (not (eobp))
 363         (setq next (next-single-char-property-change (point) 'mouse-face))
 364         (when (looking-at inactive-string)
 365           (remove-text-properties (point) next '(mouse-face))
 366           (add-text-properties (point) next '(face tmm-inactive)))
 367         (goto-char next)))
 368     (set-buffer-modified-p nil)))
 369
 370 (defun tmm-add-prompt ()
 371   (remove-hook 'minibuffer-setup-hook 'tmm-add-prompt)
 372   (add-hook 'minibuffer-exit-hook 'tmm-delete-map nil t)
 373   (unless tmm-c-prompt
 374     (error "No active menu entries"))
 375   (let ((win (selected-window)))
 376     (setq tmm-old-mb-map (tmm-define-keys t))
 377     ;; Get window and hide it for electric mode to get correct size
 378     (save-window-excursion
 379       (let ((completions
 380              (mapcar 'car minibuffer-completion-table)))
 381         (or tmm-completion-prompt
 382             (add-hook 'completion-setup-hook
 383                       'tmm-completion-delete-prompt 'append))
 384         (with-output-to-temp-buffer "*Completions*"
 385           (display-completion-list completions))
 386         (remove-hook 'completion-setup-hook 'tmm-completion-delete-prompt))
 387       (set-buffer "*Completions*")
 388       (tmm-remove-inactive-mouse-face)
 389       (when tmm-completion-prompt
 390         (let ((buffer-read-only nil))
 391           (goto-char (point-min))
 392           (insert tmm-completion-prompt))))
 393     (save-selected-window
 394       (other-window 1)                  ; Electric-pop-up-window does
 395                                         ; not work in minibuffer
 396       (Electric-pop-up-window "*Completions*")
 397       (with-current-buffer "*Completions*"
 398         (setq tmm-old-comp-map (tmm-define-keys nil))))
 399     (insert tmm-c-prompt)))
 400
 401 (defun tmm-delete-map ()
 402   (remove-hook 'minibuffer-exit-hook 'tmm-delete-map t)
 403   (if tmm-old-mb-map
 404       (use-local-map tmm-old-mb-map)))
 405
 406 (defun tmm-shortcut ()
 407   "Choose the shortcut that the user typed."
 408   (interactive)
 409   (let ((c last-command-char) s)
 410     (if (symbolp tmm-shortcut-style)
 411         (setq c (funcall tmm-shortcut-style c)))
 412     (if (memq c tmm-short-cuts)
 413         (if (equal (buffer-name) "*Completions*")
 414             (progn
 415               (goto-char (point-min))
 416               (re-search-forward
 417                (concat "\\(^\\|[ \t]\\)" (char-to-string c) tmm-mid-prompt))
 418               (choose-completion))
 419           ;; In minibuffer
 420           (delete-region (minibuffer-prompt-end) (point-max))
 421           (mapc (lambda (elt)
 422                   (if (string=
 423                        (substring (car elt) 0
 424                                   (min (1+ (length tmm-mid-prompt))
 425                                        (length (car elt))))
 426                        (concat (char-to-string c) tmm-mid-prompt))
 427                       (setq s (car elt))))
 428                   tmm-km-list)
 429           (insert s)
 430           (exit-minibuffer)))))
 431
 432 (defun tmm-goto-completions ()
 433   (interactive)
 434   (let ((prompt-end (minibuffer-prompt-end)))
 435     (setq tmm-c-prompt (buffer-substring prompt-end (point-max)))
 436     (delete-region prompt-end (point-max)))
 437   (switch-to-buffer-other-window "*Completions*")
 438   (search-forward tmm-c-prompt)
 439   (search-backward tmm-c-prompt))
 440
 441 (defun tmm-get-keymap (elt &optional in-x-menu)
 442   "Prepends (DOCSTRING EVENT BINDING) to free variable `tmm-km-list'.
 443 The values are deduced from the argument ELT, that should be an
 444 element of keymap, an `x-popup-menu' argument, or an element of
 445 `x-popup-menu' argument (when IN-X-MENU is not-nil).
 446 This function adds the element only if it is not already present.
 447 It uses the free variable `tmm-table-undef' to keep undefined keys."
 448   (let (km str cache plist filter visible enable (event (car elt)))
 449     (setq elt (cdr elt))
 450     (if (eq elt 'undefined)
 451         (setq tmm-table-undef (cons (cons event nil) tmm-table-undef))
 452       (unless (assoc event tmm-table-undef)
 453         (cond ((if (listp elt)
 454                    (or (keymapp elt) (eq (car elt) 'lambda))
 455                  (fboundp elt))
 456                (setq km elt))
 457
 458               ((if (listp (cdr-safe elt))
 459                    (or (keymapp (cdr-safe elt))
 460                        (eq (car (cdr-safe elt)) 'lambda))
 461                  (fboundp (cdr-safe elt)))
 462                (setq km (cdr elt))
 463                (and (stringp (car elt)) (setq str (car elt))))
 464
 465               ((if (listp (cdr-safe (cdr-safe elt)))
 466                    (or (keymapp (cdr-safe (cdr-safe elt)))
 467                        (eq (car (cdr-safe (cdr-safe elt))) 'lambda))
 468                  (fboundp (cdr-safe (cdr-safe elt))))
 469                (setq km (cdr (cdr elt)))
 470                (and (stringp (car elt)) (setq str (car elt)))
 471                (and str
 472                     (stringp (cdr (car (cdr elt)))) ; keyseq cache
 473                     (setq cache (cdr (car (cdr elt))))
 474                     cache (setq str (concat str cache))))
 475
 476               ((eq (car-safe elt) 'menu-item)
 477                ;; (menu-item TITLE COMMAND KEY ...)
 478                (setq plist (cdr-safe (cdr-safe (cdr-safe elt))))
 479                (when (consp (car-safe plist))
 480                  (setq plist (cdr-safe plist)))
 481                (setq km (nth 2 elt))
 482                (setq str (eval (nth 1 elt)))
 483                (setq filter (plist-get plist :filter))
 484                (if filter
 485                    (setq km (funcall filter km)))
 486                (setq visible (plist-get plist :visible))
 487                (if visible
 488                    (setq km (and (eval visible) km)))
 489                (setq enable (plist-get plist :enable))
 490                (if enable
 491                    (setq km (if (eval enable) km 'ignore)))
 492                (and str
 493                     (consp (nth 3 elt))
 494                     (stringp (cdr (nth 3 elt))) ; keyseq cache
 495                     (setq cache (cdr (nth 3 elt)))
 496                     cache
 497                     (setq str (concat str cache))))
 498
 499               ((if (listp (cdr-safe (cdr-safe (cdr-safe elt))))
 500                    (or (keymapp (cdr-safe (cdr-safe (cdr-safe elt))))
 501                        (eq (car (cdr-safe (cdr-safe (cdr-safe elt)))) 'lambda))
 502                  (fboundp (cdr-safe (cdr-safe (cdr-safe elt)))))
 503                                          ; New style of easy-menu
 504                (setq km (cdr (cdr (cdr elt))))
 505                (and (stringp (car elt)) (setq str (car elt)))
 506                (and str
 507                     (stringp (cdr (car (cdr (cdr elt))))) ; keyseq cache
 508                     (setq cache (cdr (car (cdr (cdr elt)))))
 509                     cache (setq str (concat str cache))))
 510
 511               ((stringp event)          ; x-popup or x-popup element
 512                (if (or in-x-menu (stringp (car-safe elt)))
 513                    (setq str event event nil km elt)
 514                  (setq str event event nil km (cons 'keymap elt))
 515                  ))))
 516       (and km (stringp km) (setq str km))
 517       ;; Verify that the command is enabled;
 518       ;; if not, don't mention it.
 519       (when (and km (symbolp km) (get km 'menu-enable))
 520           (setq km (if (eval (get km 'menu-enable)) km 'ignore)))
 521       (and km str
 522            (or (assoc str tmm-km-list)
 523                (push (cons str (cons event km)) tmm-km-list))))))
 524
 525 (defun tmm-get-keybind (keyseq)
 526   "Return the current binding of KEYSEQ, merging prefix definitions.
 527 If KEYSEQ is a prefix key that has local and global bindings,
 528 we merge them into a single keymap which shows the proper order of the menu.
 529 However, for the menu bar itself, the value does not take account
 530 of `menu-bar-final-items'."
 531   (let (allbind bind minorbind localbind globalbind)
 532     (setq bind (key-binding keyseq))
 533     ;; If KEYSEQ is a prefix key, then BIND is either nil
 534     ;; or a symbol defined as a keymap (which satisfies keymapp).
 535     (if (keymapp bind)
 536         (setq bind nil))
 537     ;; If we have a non-keymap definition, return that.
 538     (or bind
 539         (progn
 540           ;; Otherwise, it is a prefix, so make a list of the subcommands.
 541           ;; Make a list of all the bindings in all the keymaps.
 542           (setq minorbind (mapcar 'cdr (minor-mode-key-binding keyseq)))
 543           (setq localbind (local-key-binding keyseq))
 544           (setq globalbind (copy-sequence (cdr (global-key-binding keyseq))))
 545
 546           ;; If items have been redefined/undefined locally, remove them from
 547           ;; the global list.
 548           (dolist (minor minorbind)
 549             (dolist (item (cdr minor))
 550               (setq globalbind (assq-delete-all (car-safe item) globalbind))))
 551           (dolist (item (cdr localbind))
 552             (setq globalbind (assq-delete-all (car-safe item) globalbind)))
 553
 554           (setq globalbind (cons 'keymap globalbind))
 555           (setq allbind (cons globalbind (cons localbind minorbind)))
 556
 557           ;; Merge all the elements of ALLBIND into one keymap.
 558           (mapc (lambda (in)
 559                   (if (and (symbolp in) (keymapp in))
 560                       (setq in (symbol-function in)))
 561                   (and in (keymapp in)
 562                        (if (keymapp bind)
 563                            (setq bind (nconc bind (copy-sequence (cdr in))))
 564                          (setq bind (copy-sequence in)))))
 565                   allbind)
 566           ;; Return that keymap.
 567           bind))))
 568
 569 (add-hook 'calendar-load-hook (lambda () (require 'cal-menu)))
 570
 571 (provide 'tmm)
 572
 573 ;;; arch-tag: e7ddbdb6-4b95-4da3-afbe-ad6063d112f4
 574 ;;; tmm.el ends here