lisp/emulation/edt-mapper.el

   1 ;;; edt-mapper.el --- create an EDT LK-201 map file for X-Windows Emacs
   2
   3 ;; Copyright (C) 1994-1995, 2000-2012  Free Software Foundation, Inc.
   4
   5 ;; Author: Kevin Gallagher <Kevin.Gallagher@boeing.com>
   6 ;; Maintainer: Kevin Gallagher <Kevin.Gallagher@boeing.com>
   7 ;; Keywords: emulations
   8 ;; Package: edt
   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 of the License, or
  15 ;; (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.
  24
  25 ;;; Commentary:
  26 ;;
  27
  28 ;;  [Part of the GNU Emacs EDT Emulation.]
  29
  30 ;;  This emacs lisp program can be used to create an emacs lisp file
  31 ;;  that defines the mapping of the user's keyboard to the LK-201
  32 ;;  keyboard function keys and keypad keys (around which EDT has been
  33 ;;  designed).  Please read the "Usage" AND "Known Problems" sections
  34 ;;  below before attempting to run this program.  (The design of this
  35 ;;  file, edt-mapper.el, was heavily influenced by tpu-mapper.el.)
  36
  37 ;;  Version 4.0 contains the following enhancements:
  38
  39 ;;  1.  If you access a workstation using an X Server, note that the
  40 ;;      initialization file generated by edt-mapper.el will now
  41 ;;      contain the name of the X Server vendor.  This is a
  42 ;;      convenience for those who have access to their Unix account
  43 ;;      from more than one type of X Server.  Since different X
  44 ;;      Servers typically require different EDT emulation
  45 ;;      initialization files, edt-mapper.el will now generate these
  46 ;;      different initialization files and save them with different
  47 ;;      names.
  48
  49 ;;  2.  Also, edt-mapper.el is now capable of binding an ASCII key
  50 ;;      sequence, providing the ASCII key sequence prefix is already
  51 ;;      known by Emacs to be a prefix.  As a result, some
  52 ;;      terminal/keyboard/window system configurations, which don't
  53 ;;      have a complete set of sensible function key map bindings, can
  54 ;;      still be configured for EDT Emulation.
  55
  56
  57 ;;  Usage:
  58
  59 ;;  Simply load this file into emacs (version 19 or higher)
  60 ;;  using the following command.
  61
  62 ;;    emacs -q -l edt-mapper.el
  63
  64 ;;  The "-q" option prevents loading of your .emacs file (commands
  65 ;;  therein might confuse this program).
  66
  67 ;;  An instruction screen showing the typical LK-201 terminal
  68 ;;  functions keys will be displayed, and you will be prompted to
  69 ;;  press the keys on your keyboard which you want to emulate the
  70 ;;  corresponding LK-201 keys.
  71
  72 ;;  Finally, you will be prompted for the name of the file to store
  73 ;;  the key definitions.  If you chose the default, it will be found
  74 ;;  and loaded automatically when the EDT emulation is started.  If
  75 ;;  you specify a different file name, you will need to set the
  76 ;;  variable "edt-keys-file" before starting the EDT emulation.
  77 ;;  Here's how you might go about doing that in your .emacs file.
  78
  79 ;;    (setq edt-keys-file (expand-file-name "~/.my-emacs-keys"))
  80
  81
  82 ;;  Known Problems:
  83
  84 ;;  Sometimes, edt-mapper will ignore a key you press, and just
  85 ;;  continue to prompt for the same key.  This can happen when your
  86 ;;  window manager sucks up the key and doesn't pass it on to emacs,
  87 ;;  or it could be an emacs bug.  Either way, there's nothing that
  88 ;;  edt-mapper can do about it.  You must press RETURN, to skip the
  89 ;;  current key and continue.  Later, you and/or your local Emacs guru
  90 ;;  can try to figure out why the key is being ignored.
  91
  92 ;;; History:
  93 ;;
  94
  95 ;;  Version 4.0    2000    Added 2 New Features
  96
  97 ;;; Code:
  98
  99 ;;;
 100 ;;;  Decide Emacs Variant, GNU Emacs or XEmacs (aka Lucid Emacs).
 101 ;;;  Determine Window System, and X Server Vendor (if appropriate).
 102 ;;;
 103 (defconst edt-window-system (if (featurep 'xemacs) (console-type) window-system)
 104   "Indicates window system \(in GNU Emacs\) or console type \(in XEmacs\).")
 105
 106 (declare-function x-server-vendor "xfns.c" (&optional terminal))
 107
 108 (defconst edt-xserver (when (eq edt-window-system 'x)
 109                         ;; The Cygwin window manager has a `/' in its
 110                         ;; name, which breaks the generated file name of
 111                         ;; the custom key map file.  Replace `/' with a
 112                         ;; `-' to work around that.
 113                         (if (featurep 'xemacs)
 114                             (replace-in-string (x-server-vendor) "[ /]" "-")
 115                           (replace-regexp-in-string "[ /]" "-"
 116                                                     (x-server-vendor))))
 117   "Indicates X server vendor name, if applicable.")
 118
 119
 120 ;;;
 121 ;;;  Key variables
 122 ;;;
 123 (defvar edt-key nil)
 124 (defvar edt-enter nil)
 125 (defvar edt-return nil)
 126 (defvar edt-key-seq nil)
 127 (defvar edt-enter-seq nil)
 128 (defvar edt-return-seq nil)
 129 (defvar edt-term nil)
 130
 131 ;; To silence the byte-compiler
 132 (defvar EDT-key-name)
 133 (defvar edt-save-function-key-map)
 134
 135 ;;;
 136 ;;;  Determine Terminal Type (if appropriate).
 137 ;;;
 138
 139 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 140     (setq edt-term nil)
 141   (setq edt-term (getenv "TERM")))
 142
 143 ;;;
 144 ;;; Implements a workaround for a feature that was added to simple.el.
 145 ;;;
 146 ;;; Many function keys have no Emacs functions assigned to them by
 147 ;;; default. A subset of these are typically assigned functions in the
 148 ;;; EDT emulation. This includes all the keypad keys and a some others
 149 ;;; like Delete.
 150 ;;;
 151 ;;; Logic in simple.el maps some of these unassigned function keys to
 152 ;;; ordinary typing keys.  Where this is the case, a call to
 153 ;;; read-key-sequence, below, does not return the name of the function
 154 ;;; key pressed by the user but, instead, it returns the name of the
 155 ;;; key to which it has been mapped.  It needs to know the name of the
 156 ;;; key pressed by the user. As a workaround, we assign a function to
 157 ;;; each of the unassigned function keys of interest, here.  These
 158 ;;; assignments override the mapping to other keys and are only
 159 ;;; temporary since, when edt-mapper is finished executing, it causes
 160 ;;; Emacs to exit.
 161 ;;;
 162
 163 (mapc
 164  (lambda (function-key)
 165    (if (not (lookup-key (current-global-map) function-key))
 166        (define-key (current-global-map) function-key 'forward-char)))
 167  '([kp-0] [kp-1] [kp-2] [kp-3] [kp-4]
 168    [kp-5] [kp-6] [kp-7] [kp-8] [kp-9]
 169    [kp-space]
 170    [kp-tab]
 171    [kp-enter]
 172    [kp-multiply]
 173    [kp-add]
 174    [kp-separator]
 175    [kp-subtract]
 176    [kp-decimal]
 177    [kp-divide]
 178    [kp-equal]
 179    [backspace]
 180    [delete]
 181    [tab]
 182    [linefeed]
 183    [clear]))
 184
 185 ;;;
 186 ;;;  Make sure the window is big enough to display the instructions,
 187 ;;;  except where window cannot be re-sized.
 188 ;;;
 189
 190 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 191     (set-frame-size (selected-frame) 80 36))
 192
 193 ;;;
 194 ;;;  Create buffers - Directions and Keys
 195 ;;;
 196 (if (not (get-buffer "Directions")) (generate-new-buffer "Directions"))
 197 (if (not (get-buffer "Keys")) (generate-new-buffer "Keys"))
 198
 199 ;;;
 200 ;;;  Put header in the Keys buffer
 201 ;;;
 202 (set-buffer "Keys")
 203 (insert "\
 204 ;;
 205 ;;  Key definitions for the EDT emulation within GNU Emacs
 206 ;;
 207
 208 (defconst *EDT-keys*
 209   '(
 210 ")
 211
 212 ;;;
 213 ;;;   Display directions
 214 ;;;
 215 (switch-to-buffer "Directions")
 216 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 217     (insert "
 218                                   EDT MAPPER
 219
 220     You will be asked to press keys to create a custom mapping (under a
 221     Window Manager) of your keypad keys and function keys so that they can
 222     emulate the LK-201 keypad and function keys or the subset of keys found
 223     on a VT-100 series terminal keyboard.  (The LK-201 keyboard is the
 224     standard keyboard attached to VT-200 series terminals, and above.)
 225
 226     Sometimes, edt-mapper will ignore a key you press, and just continue to
 227     prompt for the same key.  This can happen when your window manager sucks
 228     up the key and doesn't pass it on to Emacs, or it could be an Emacs bug.
 229     Either way, there's nothing that edt-mapper can do about it.  You must
 230     press RETURN, to skip the current key and continue.  Later, you and/or
 231     your local system guru can try to figure out why the key is being ignored.
 232
 233     Start by pressing the RETURN key, and continue by pressing the keys
 234     specified in the mini-buffer.  If you want to entirely omit a key,
 235     because your keyboard does not have a corresponding key, for example,
 236     just press RETURN at the prompt.
 237
 238 ")
 239   (insert "
 240                                   EDT MAPPER
 241
 242     You will be asked to press keys to create a custom mapping of your
 243     keypad keys and function keys so that they can emulate the LK-201
 244     keypad and function keys or the subset of keys found on a VT-100
 245     series terminal keyboard.  (The LK-201 keyboard is the standard
 246     keyboard attached to VT-200 series terminals, and above.)
 247
 248     If you are using a real LK-201 keyboard, you should map the keys
 249     exactly as they are on the keyboard.
 250
 251     Start by pressing the RETURN key, and continue by pressing the keys
 252     specified in the mini-buffer.  If you want to entirely omit a key,
 253     because your keyboard does not have a corresponding key, for example,
 254     just press RETURN at the prompt.
 255
 256 "))
 257
 258 (delete-other-windows)
 259
 260 ;;;
 261 ;;;  Save <CR> for future reference.
 262 ;;;
 263 ;;;  For GNU Emacs, running in a Window System, first hide bindings in
 264 ;;;  function-key-map.
 265 ;;;
 266 (cond
 267  ((featurep 'xemacs)
 268   (setq edt-return-seq (read-key-sequence "Hit carriage-return <CR> to continue "))
 269   (setq edt-return (concat "[" (format "%s" (event-key (aref edt-return-seq 0))) "]")))
 270  (t
 271   (if edt-window-system
 272       (progn
 273         (setq edt-save-function-key-map function-key-map)
 274         (setq function-key-map (make-sparse-keymap))))
 275   (setq edt-return (read-key-sequence "Hit carriage-return <CR> to continue "))))
 276
 277 ;;;
 278 ;;;  Remove prefix-key bindings to F1 and F2 in global-map so they can be
 279 ;;;  bound in the EDT Emulation mode.
 280 ;;;
 281 (global-unset-key [f1])
 282 (global-unset-key [f2])
 283
 284 ;;;
 285 ;;;   Display Keypad Diagram and Begin Prompting for Keys
 286 ;;;
 287 (set-buffer "Directions")
 288 (delete-region (point-min) (point-max))
 289 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 290     (insert "
 291
 292           PRESS THE KEY SPECIFIED IN THE MINIBUFFER BELOW.
 293
 294     Here's a picture of the standard LK-201 keypad for reference:
 295
 296           _______________________    _______________________________
 297          | HELP  |      DO       |  |  F17  |  F18  |  F19  |  F20  |
 298          |       |               |  |       |       |       |       |
 299          |_______|_______________|  |_______|_______|_______|_______|
 300           _______________________    _______________________________
 301          | FIND  |INSERT |REMOVE |  |  PF1  |  PF2  |  PF3  |  PF4  |
 302          |       |       |       |  |       |       |       |       |
 303          |_______|_______|_______|  |_______|_______|_______|_______|
 304          |SELECT |PREVIOU| NEXT  |  |  KP7  |  KP8  |  KP9  |  KP-  |
 305          |       |       |       |  |       |       |       |       |
 306          |_______|_______|_______|  |_______|_______|_______|_______|
 307                  |   UP  |          |  KP4  |  KP5  |  KP6  |  KP,  |
 308                  |       |          |       |       |       |       |
 309           _______|_______|_______   |_______|_______|_______|_______|
 310          |  LEFT |  DOWN | RIGHT |  |  KP1  |  KP2  |  KP3  |       |
 311          |       |       |       |  |       |       |       |       |
 312          |_______|_______|_______|  |_______|_______|_______|  KPE  |
 313                                     |      KP0      |  KPP  |       |
 314                                     |               |       |       |
 315                                     |_______________|_______|_______|
 316
 317          REMEMBER:  JUST PRESS RETURN TO SKIP MAPPING A KEY.
 318
 319 ")
 320   (progn
 321     (insert "
 322     GENERATING A CUSTOM CONFIGURATION FILE FOR TERMINAL TYPE:  ")
 323     (insert (format "%s." edt-term))
 324     (insert "
 325
 326           PRESS THE KEY SPECIFIED IN THE MINIBUFFER BELOW.
 327
 328           _______________________    _______________________________
 329          | HELP  |      DO       |  |  F17  |  F18  |  F19  |  F20  |
 330          |_______|_______________|  |_______|_______|_______|_______|
 331           _______________________    _______________________________
 332          | FIND  |INSERT |REMOVE |  |  PF1  |  PF2  |  PF3  |  PF4  |
 333          |_______|_______|_______|  |_______|_______|_______|_______|
 334          |SELECT |PREVIOU| NEXT  |  |  KP7  |  KP8  |  KP9  |  KP-  |
 335          |_______|_______|_______|  |_______|_______|_______|_______|
 336                  |   UP  |          |  KP4  |  KP5  |  KP6  |  KP,  |
 337           _______|_______|_______   |_______|_______|_______|_______|
 338          |  LEFT |  DOWN | RIGHT |  |  KP1  |  KP2  |  KP3  |       |
 339          |_______|_______|_______|  |_______|_______|_______|  KPE  |
 340                                     |      KP0      |  KPP  |       |
 341                                     |_______________|_______|_______|
 342
 343          REMEMBER:  JUST PRESS RETURN TO SKIP MAPPING A KEY.")))
 344
 345
 346 ;;;
 347 ;;;  Key mapping functions
 348 ;;;
 349 (defun edt-map-key (ident descrip)
 350   (interactive)
 351   (if (featurep 'xemacs)
 352       (progn
 353         (setq edt-key-seq (read-key-sequence (format "Press %s%s: " ident descrip)))
 354         (setq edt-key (concat "[" (format "%s" (event-key (aref edt-key-seq 0))) "]"))
 355         (cond ((not (equal edt-key edt-return))
 356                (set-buffer "Keys")
 357                (insert (format "    (\"%s\" . %s)\n" ident edt-key))
 358                (set-buffer "Directions"))
 359               ;; bogosity to get next prompt to come up, if the user hits <CR>!
 360               ;; check periodically to see if this is still needed...
 361               (t
 362                (set-buffer "Keys")
 363                (insert (format "    (\"%s\" . \"\" )\n" ident))
 364                (set-buffer "Directions"))))
 365     (setq edt-key (read-key-sequence (format "Press %s%s: " ident descrip)))
 366     (cond ((not (equal edt-key edt-return))
 367            (set-buffer "Keys")
 368            (insert (if (vectorp edt-key)
 369                        (format "    (\"%s\" . %s)\n" ident edt-key)
 370                      (format "    (\"%s\" . \"%s\")\n" ident edt-key)))
 371            (set-buffer "Directions"))
 372           ;; bogosity to get next prompt to come up, if the user hits <CR>!
 373           ;; check periodically to see if this is still needed...
 374           (t
 375            (set-buffer "Keys")
 376            (insert (format "    (\"%s\" . \"\" )\n" ident))
 377            (set-buffer "Directions"))))
 378   edt-key)
 379
 380 (set-buffer "Keys")
 381 (insert "
 382 ;;
 383 ;;  Arrows
 384 ;;
 385 ")
 386 (set-buffer "Directions")
 387
 388 (edt-map-key "UP"     " - The Up Arrow Key")
 389 (edt-map-key "DOWN"   " - The Down Arrow Key")
 390 (edt-map-key "LEFT"   " - The Left Arrow Key")
 391 (edt-map-key "RIGHT"  " - The Right Arrow Key")
 392
 393
 394 (set-buffer "Keys")
 395 (insert "
 396 ;;
 397 ;;  PF keys
 398 ;;
 399 ")
 400 (set-buffer "Directions")
 401
 402 (edt-map-key "PF1"  " - The PF1 (GOLD) Key")
 403 (edt-map-key "PF2"  " - The Keypad PF2 Key")
 404 (edt-map-key "PF3"  " - The Keypad PF3 Key")
 405 (edt-map-key "PF4"  " - The Keypad PF4 Key")
 406
 407 (set-buffer "Keys")
 408 (insert "
 409 ;;
 410 ;;  KP0-9 KP- KP, KPP and KPE
 411 ;;
 412 ")
 413 (set-buffer "Directions")
 414
 415 (edt-map-key "KP0"      " - The Keypad 0 Key")
 416 (edt-map-key "KP1"      " - The Keypad 1 Key")
 417 (edt-map-key "KP2"      " - The Keypad 2 Key")
 418 (edt-map-key "KP3"      " - The Keypad 3 Key")
 419 (edt-map-key "KP4"      " - The Keypad 4 Key")
 420 (edt-map-key "KP5"      " - The Keypad 5 Key")
 421 (edt-map-key "KP6"      " - The Keypad 6 Key")
 422 (edt-map-key "KP7"      " - The Keypad 7 Key")
 423 (edt-map-key "KP8"      " - The Keypad 8 Key")
 424 (edt-map-key "KP9"      " - The Keypad 9 Key")
 425 (edt-map-key "KP-"      " - The Keypad - Key")
 426 (edt-map-key "KP,"      " - The Keypad , Key")
 427 (edt-map-key "KPP"      " - The Keypad . Key")
 428 (edt-map-key "KPE"      " - The Keypad Enter Key")
 429 ;; Save the enter key
 430 (setq edt-enter edt-key)
 431 (setq edt-enter-seq edt-key-seq)
 432
 433
 434 (set-buffer "Keys")
 435 (insert "
 436 ;;
 437 ;;  Editing keypad (FIND, INSERT, REMOVE)
 438 ;;                 (SELECT, PREVIOUS, NEXT)
 439 ;;
 440 ")
 441 (set-buffer "Directions")
 442
 443 (edt-map-key "FIND"      " - The Find key on the editing keypad")
 444 (edt-map-key "INSERT"    " - The Insert key on the editing keypad")
 445 (edt-map-key "REMOVE"    " - The Remove key on the editing keypad")
 446 (edt-map-key "SELECT"    " - The Select key on the editing keypad")
 447 (edt-map-key "PREVIOUS"  " - The Prev Scr key on the editing keypad")
 448 (edt-map-key "NEXT"      " - The Next Scr key on the editing keypad")
 449
 450 (set-buffer "Keys")
 451 (insert "
 452 ;;
 453 ;;  F1-14 Help Do F17-F20
 454 ;;
 455 ")
 456 (set-buffer "Directions")
 457
 458 (edt-map-key "F1"        " - F1 Function Key")
 459 (edt-map-key "F2"        " - F2 Function Key")
 460 (edt-map-key "F3"        " - F3 Function Key")
 461 (edt-map-key "F4"        " - F4 Function Key")
 462 (edt-map-key "F5"        " - F5 Function Key")
 463 (edt-map-key "F6"        " - F6 Function Key")
 464 (edt-map-key "F7"        " - F7 Function Key")
 465 (edt-map-key "F8"        " - F8 Function Key")
 466 (edt-map-key "F9"        " - F9 Function Key")
 467 (edt-map-key "F10"       " - F10 Function Key")
 468 (edt-map-key "F11"       " - F11 Function Key")
 469 (edt-map-key "F12"       " - F12 Function Key")
 470 (edt-map-key "F13"       " - F13 Function Key")
 471 (edt-map-key "F14"       " - F14 Function Key")
 472 (edt-map-key "HELP"      " - HELP Function Key")
 473 (edt-map-key "DO"        " - DO Function Key")
 474 (edt-map-key "F17"       " - F17 Function Key")
 475 (edt-map-key "F18"       " - F18 Function Key")
 476 (edt-map-key "F19"       " - F19 Function Key")
 477 (edt-map-key "F20"       " - F20 Function Key")
 478
 479 (set-buffer "Directions")
 480 (delete-region (point-min) (point-max))
 481 (insert "
 482                        ADDITIONAL FUNCTION KEYS
 483
 484     Your keyboard may have additional function keys which do not correspond
 485     to any LK-201 keys.  The EDT Emulation can be configured to recognize
 486     those keys, since you may wish to add your own key bindings to those keys.
 487
 488     For example, suppose your keyboard has a keycap marked \"Line Del\" and
 489     you wish to add it to the list of keys which can be customized by the EDT
 490     Emulation.  First, assign a unique single-word name to the key for use by
 491     the EDT Emulation, for example, \"linedel\".  Then, at the \"EDT Key
 492     Name:\" prompt, enter \"linedel\", followed by a press of the RETURN key.
 493     Finally, when prompted, press the \"Line Del\" key.  You now will be able
 494     to bind functions to \"linedel\" and \"Gold-linedel\" in edt-user.el in
 495     just the same way you can customize bindings of the LK-201 function and
 496     keypad keys.
 497
 498     When you are done, just press RETURN at the \"EDT Key Name:\" prompt.
 499 ")
 500 (switch-to-buffer "Directions")
 501 ;;;
 502 ;;;  Add support for extras keys
 503 ;;;
 504 (set-buffer "Keys")
 505 (insert "\
 506 ;;
 507 ;;  Extra Keys
 508 ;;
 509 ")
 510 ;;;
 511 ;;;  Restore function-key-map.
 512 ;;;
 513 (if (and edt-window-system (not (featurep 'xemacs)))
 514     (setq function-key-map edt-save-function-key-map))
 515 (setq EDT-key-name "")
 516 (while (not
 517         (string-equal (setq EDT-key-name (read-string "EDT Key Name: ")) ""))
 518   (edt-map-key EDT-key-name ""))
 519
 520 ;
 521 ; No more keys to add, so wrap up.
 522 ;
 523 (set-buffer "Keys")
 524 (insert "\
 525     )
 526   )
 527 ")
 528
 529 ;;;
 530 ;;;  Save the key mapping program
 531 ;;;
 532 ;;;
 533 ;;;  Save the key mapping file
 534 ;;;
 535 (let ((file (concat
 536              "~/.edt-" (if (featurep 'xemacs) "xemacs" "gnu")
 537              (if edt-term (concat "-" edt-term))
 538              (if edt-xserver (concat "-" edt-xserver))
 539              (if edt-window-system (concat "-" (upcase (symbol-name edt-window-system))))
 540              "-keys")))
 541   (set-visited-file-name
 542    (read-file-name (format "Save key mapping to file (default %s): " file) nil file)))
 543 (save-buffer)
 544
 545 (message "That's it!  Press any key to exit")
 546 (sit-for 600)
 547 (kill-emacs t)
 548
 549 ;;; edt-mapper.el ends here