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, 2000-2016 Free Software Foundation, Inc.
   4
   5 ;; Author: Kevin Gallagher <kevin.gal@verizon.net>
   6 ;; Maintainer: Kevin Gallagher <kevin.gal@verizon.net>
   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 init 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 init 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 ;; Otherwise it just hangs.  This seems preferable.
 100 (if noninteractive
 101     (error "edt-mapper cannot be loaded in batch mode"))
 102
 103 ;;;
 104 ;;;  Decide Emacs Variant, GNU Emacs or XEmacs (aka Lucid Emacs).
 105 ;;;  Determine Window System, and X Server Vendor (if appropriate).
 106 ;;;
 107 (defconst edt-window-system (if (featurep 'xemacs) (console-type) window-system)
 108   "Indicates window system (in GNU Emacs) or console type (in XEmacs).")
 109
 110 (declare-function x-server-vendor "xfns.c" (&optional terminal))
 111
 112 (defconst edt-xserver (when (eq edt-window-system 'x)
 113                         ;; The Cygwin window manager has a `/' in its
 114                         ;; name, which breaks the generated file name of
 115                         ;; the custom key map file.  Replace `/' with a
 116                         ;; `-' to work around that.
 117                         (if (featurep 'xemacs)
 118                             (replace-in-string (x-server-vendor) "[ /]" "-")
 119                           (replace-regexp-in-string "[ /]" "-"
 120                                                     (x-server-vendor))))
 121   "Indicates X server vendor name, if applicable.")
 122
 123
 124 ;;;
 125 ;;;  Key variables
 126 ;;;
 127 (defvar edt-key nil)
 128 (defvar edt-enter nil)
 129 (defvar edt-return nil)
 130 (defvar edt-key-seq nil)
 131 (defvar edt-enter-seq nil)
 132 (defvar edt-return-seq nil)
 133 (defvar edt-term nil)
 134
 135 ;; To silence the byte-compiler
 136 (defvar EDT-key-name)
 137 (defvar edt-save-function-key-map)
 138
 139 ;;;
 140 ;;;  Determine Terminal Type (if appropriate).
 141 ;;;
 142
 143 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 144     (setq edt-term nil)
 145   (setq edt-term (getenv "TERM")))
 146
 147 ;;;
 148 ;;; Implements a workaround for a feature that was added to simple.el.
 149 ;;;
 150 ;;; Many function keys have no Emacs functions assigned to them by
 151 ;;; default. A subset of these are typically assigned functions in the
 152 ;;; EDT emulation. This includes all the keypad keys and a some others
 153 ;;; like Delete.
 154 ;;;
 155 ;;; Logic in simple.el maps some of these unassigned function keys to
 156 ;;; ordinary typing keys.  Where this is the case, a call to
 157 ;;; read-key-sequence, below, does not return the name of the function
 158 ;;; key pressed by the user but, instead, it returns the name of the
 159 ;;; key to which it has been mapped.  It needs to know the name of the
 160 ;;; key pressed by the user. As a workaround, we assign a function to
 161 ;;; each of the unassigned function keys of interest, here.  These
 162 ;;; assignments override the mapping to other keys and are only
 163 ;;; temporary since, when edt-mapper is finished executing, it causes
 164 ;;; Emacs to exit.
 165 ;;;
 166
 167 (mapc
 168  (lambda (function-key)
 169    (if (not (lookup-key (current-global-map) function-key))
 170        (define-key (current-global-map) function-key 'forward-char)))
 171  '([kp-0] [kp-1] [kp-2] [kp-3] [kp-4]
 172    [kp-5] [kp-6] [kp-7] [kp-8] [kp-9]
 173    [kp-space]
 174    [kp-tab]
 175    [kp-enter]
 176    [kp-multiply]
 177    [kp-add]
 178    [kp-separator]
 179    [kp-subtract]
 180    [kp-decimal]
 181    [kp-divide]
 182    [kp-equal]
 183    [backspace]
 184    [delete]
 185    [tab]
 186    [linefeed]
 187    [clear]))
 188
 189 ;;;
 190 ;;;  Make sure the window is big enough to display the instructions,
 191 ;;;  except where window cannot be re-sized.
 192 ;;;
 193
 194 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 195     (set-frame-size (selected-frame) 80 36))
 196
 197 ;;;
 198 ;;;  Create buffers - Directions and Keys
 199 ;;;
 200 (if (not (get-buffer "Directions")) (generate-new-buffer "Directions"))
 201 (if (not (get-buffer "Keys")) (generate-new-buffer "Keys"))
 202
 203 ;;;
 204 ;;;  Put header in the Keys buffer
 205 ;;;
 206 (set-buffer "Keys")
 207 (insert "\
 208 ;;
 209 ;;  Key definitions for the EDT emulation within GNU Emacs
 210 ;;
 211
 212 (defconst *EDT-keys*
 213   '(
 214 ")
 215
 216 ;;;
 217 ;;;   Display directions
 218 ;;;
 219 (switch-to-buffer "Directions")
 220 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 221     (insert "
 222                                   EDT MAPPER
 223
 224     You will be asked to press keys to create a custom mapping (under a
 225     Window Manager) of your keypad keys and function keys so that they can
 226     emulate the LK-201 keypad and function keys or the subset of keys found
 227     on a VT-100 series terminal keyboard.  (The LK-201 keyboard is the
 228     standard keyboard attached to VT-200 series terminals, and above.)
 229
 230     Sometimes, edt-mapper will ignore a key you press, and just continue to
 231     prompt for the same key.  This can happen when your window manager sucks
 232     up the key and doesn't pass it on to Emacs, or it could be an Emacs bug.
 233     Either way, there's nothing that edt-mapper can do about it.  You must
 234     press RETURN, to skip the current key and continue.  Later, you and/or
 235     your local system guru can try to figure out why the key is being ignored.
 236
 237     Start by pressing the RETURN key, and continue by pressing the keys
 238     specified in the mini-buffer.  If you want to entirely omit a key,
 239     because your keyboard does not have a corresponding key, for example,
 240     just press RETURN at the prompt.
 241
 242 ")
 243   (insert "
 244                                   EDT MAPPER
 245
 246     You will be asked to press keys to create a custom mapping of your
 247     keypad keys and function keys so that they can emulate the LK-201
 248     keypad and function keys or the subset of keys found on a VT-100
 249     series terminal keyboard.  (The LK-201 keyboard is the standard
 250     keyboard attached to VT-200 series terminals, and above.)
 251
 252     If you are using a real LK-201 keyboard, you should map the keys
 253     exactly as they are on the keyboard.
 254
 255     Start by pressing the RETURN key, and continue by pressing the keys
 256     specified in the mini-buffer.  If you want to entirely omit a key,
 257     because your keyboard does not have a corresponding key, for example,
 258     just press RETURN at the prompt.
 259
 260 "))
 261
 262 (delete-other-windows)
 263
 264 ;;;
 265 ;;;  Save <CR> for future reference.
 266 ;;;
 267 ;;;  For GNU Emacs, running in a Window System, first hide bindings in
 268 ;;;  function-key-map.
 269 ;;;
 270 (cond
 271  ((featurep 'xemacs)
 272   (setq edt-return-seq (read-key-sequence "Hit carriage-return <CR> to continue "))
 273   (setq edt-return (concat "[" (format "%s" (event-key (aref edt-return-seq 0))) "]")))
 274  (t
 275   (if edt-window-system
 276       (progn
 277         (setq edt-save-function-key-map function-key-map)
 278         (setq function-key-map (make-sparse-keymap))))
 279   (setq edt-return (read-key-sequence "Hit carriage-return <CR> to continue "))))
 280
 281 ;;;
 282 ;;;  Remove prefix-key bindings to F1 and F2 in global-map so they can be
 283 ;;;  bound in the EDT Emulation mode.
 284 ;;;
 285 (global-unset-key [f1])
 286 (global-unset-key [f2])
 287
 288 ;;;
 289 ;;;   Display Keypad Diagram and Begin Prompting for Keys
 290 ;;;
 291 (set-buffer "Directions")
 292 (delete-region (point-min) (point-max))
 293 (if (and edt-window-system (not (eq edt-window-system 'tty)))
 294     (insert "
 295
 296           PRESS THE KEY SPECIFIED IN THE MINIBUFFER BELOW.
 297
 298     Here's a picture of the standard LK-201 keypad for reference:
 299
 300           ________________________    _______________________________
 301          | HELP  |      DO        |  |  F17  |  F18  |  F19  |  F20  |
 302          |       |                |  |       |       |       |       |
 303          |_______|________________|  |_______|_______|_______|_______|
 304           ________________________   _______________________________
 305          | FIND  |INSERT  |REMOVE |  |  PF1  |  PF2  |  PF3  |  PF4  |
 306          |       |        |       |  |       |       |       |       |
 307          |_______|________|_______|  |_______|_______|_______|_______|
 308          |SELECT |PREVIOUS|NEXT   |  |  KP7  |  KP8  |  KP9  |  KP-  |
 309          |       |        |       |  |       |       |       |       |
 310          |_______|________|_______|  |_______|_______|_______|_______|
 311                  |   UP   |          |  KP4  |  KP5  |  KP6  |  KP,  |
 312                  |        |          |       |       |       |       |
 313           _______|________|_______   |_______|_______|_______|_______|
 314          |  LEFT |  DOWN  | RIGHT |  |  KP1  |  KP2  |  KP3  |       |
 315          |       |        |       |  |       |       |       |       |
 316          |_______|________|_______|  |_______|_______|_______|  KPE  |
 317                                      |      KP0      |  KPP  |       |
 318                                      |               |       |       |
 319                                      |_______________|_______|_______|
 320
 321          REMEMBER:  JUST PRESS RETURN TO SKIP MAPPING A KEY.
 322
 323 ")
 324   (progn
 325     (insert "
 326     GENERATING A CUSTOM CONFIGURATION FILE FOR TERMINAL TYPE:  ")
 327     (insert (format "%s." edt-term))
 328     (insert "
 329
 330           PRESS THE KEY SPECIFIED IN THE MINIBUFFER BELOW.
 331
 332           ________________________    _______________________________
 333          | HELP  |       DO       |  |  F17  |  F18  |  F19  |  F20  |
 334          |_______|________________|  |_______|_______|_______|_______|
 335           ________________________    _______________________________
 336          | FIND  |INSERT  |REMOVE |  |  PF1  |  PF2  |  PF3  |  PF4  |
 337          |_______|________|_______|  |_______|_______|_______|_______|
 338          |SELECT |PREVIOUS| NEXT  |  |  KP7  |  KP8  |  KP9  |  KP-  |
 339          |_______|________|_______|  |_______|_______|_______|_______|
 340                  |   UP   |          |  KP4  |  KP5  |  KP6  |  KP,  |
 341           _______|________|_______   |_______|_______|_______|_______|
 342          |  LEFT |  DOWN  | RIGHT |  |  KP1  |  KP2  |  KP3  |       |
 343          |_______|________|_______|  |_______|_______|_______|  KPE  |
 344                                      |      KP0      |  KPP  |       |
 345                                      |_______________|_______|_______|
 346
 347          REMEMBER:  JUST PRESS RETURN TO SKIP MAPPING A KEY.")))
 348
 349
 350 ;;;
 351 ;;;  Key mapping functions
 352 ;;;
 353 (defun edt-map-key (ident descrip)
 354   (interactive)
 355   (if (featurep 'xemacs)
 356       (progn
 357         (setq edt-key-seq (read-key-sequence (format "Press %s%s: " ident descrip)))
 358         (setq edt-key (concat "[" (format "%s" (event-key (aref edt-key-seq 0))) "]"))
 359         (cond ((not (equal edt-key edt-return))
 360                (set-buffer "Keys")
 361                (insert (format "    (\"%s\" . %s)\n" ident edt-key))
 362                (set-buffer "Directions"))
 363               ;; bogosity to get next prompt to come up, if the user hits <CR>!
 364               ;; check periodically to see if this is still needed...
 365               (t
 366                (set-buffer "Keys")
 367                (insert (format "    (\"%s\" . \"\" )\n" ident))
 368                (set-buffer "Directions"))))
 369     (setq edt-key (read-key-sequence (format "Press %s%s: " ident descrip)))
 370     (cond ((not (equal edt-key edt-return))
 371            (set-buffer "Keys")
 372            (insert (if (vectorp edt-key)
 373                        (format "    (\"%s\" . %s)\n" ident edt-key)
 374                      (format "    (\"%s\" . \"%s\")\n" ident edt-key)))
 375            (set-buffer "Directions"))
 376           ;; bogosity to get next prompt to come up, if the user hits <CR>!
 377           ;; check periodically to see if this is still needed...
 378           (t
 379            (set-buffer "Keys")
 380            (insert (format "    (\"%s\" . \"\" )\n" ident))
 381            (set-buffer "Directions"))))
 382   edt-key)
 383
 384 (set-buffer "Keys")
 385 (insert "
 386 ;;
 387 ;;  Arrows
 388 ;;
 389 ")
 390 (set-buffer "Directions")
 391
 392 (edt-map-key "UP"     " - The Up Arrow Key")
 393 (edt-map-key "DOWN"   " - The Down Arrow Key")
 394 (edt-map-key "LEFT"   " - The Left Arrow Key")
 395 (edt-map-key "RIGHT"  " - The Right Arrow Key")
 396
 397
 398 (set-buffer "Keys")
 399 (insert "
 400 ;;
 401 ;;  PF keys
 402 ;;
 403 ")
 404 (set-buffer "Directions")
 405
 406 (edt-map-key "PF1"  " - The PF1 (GOLD) Key")
 407 (edt-map-key "PF2"  " - The Keypad PF2 Key")
 408 (edt-map-key "PF3"  " - The Keypad PF3 Key")
 409 (edt-map-key "PF4"  " - The Keypad PF4 Key")
 410
 411 (set-buffer "Keys")
 412 (insert "
 413 ;;
 414 ;;  KP0-9 KP- KP, KPP and KPE
 415 ;;
 416 ")
 417 (set-buffer "Directions")
 418
 419 (edt-map-key "KP0"      " - The Keypad 0 Key")
 420 (edt-map-key "KP1"      " - The Keypad 1 Key")
 421 (edt-map-key "KP2"      " - The Keypad 2 Key")
 422 (edt-map-key "KP3"      " - The Keypad 3 Key")
 423 (edt-map-key "KP4"      " - The Keypad 4 Key")
 424 (edt-map-key "KP5"      " - The Keypad 5 Key")
 425 (edt-map-key "KP6"      " - The Keypad 6 Key")
 426 (edt-map-key "KP7"      " - The Keypad 7 Key")
 427 (edt-map-key "KP8"      " - The Keypad 8 Key")
 428 (edt-map-key "KP9"      " - The Keypad 9 Key")
 429 (edt-map-key "KP-"      " - The Keypad - Key")
 430 (edt-map-key "KP,"      " - The Keypad , Key")
 431 (edt-map-key "KPP"      " - The Keypad . Key")
 432 (edt-map-key "KPE"      " - The Keypad Enter Key")
 433 ;; Save the enter key
 434 (setq edt-enter edt-key)
 435 (setq edt-enter-seq edt-key-seq)
 436
 437
 438 (set-buffer "Keys")
 439 (insert "
 440 ;;
 441 ;;  Editing keypad (FIND, INSERT, REMOVE)
 442 ;;                 (SELECT, PREVIOUS, NEXT)
 443 ;;
 444 ")
 445 (set-buffer "Directions")
 446
 447 (edt-map-key "FIND"      " - The Find key on the editing keypad")
 448 (edt-map-key "INSERT"    " - The Insert key on the editing keypad")
 449 (edt-map-key "REMOVE"    " - The Remove key on the editing keypad")
 450 (edt-map-key "SELECT"    " - The Select key on the editing keypad")
 451 (edt-map-key "PREVIOUS"  " - The Prev Scr key on the editing keypad")
 452 (edt-map-key "NEXT"      " - The Next Scr key on the editing keypad")
 453
 454 (set-buffer "Keys")
 455 (insert "
 456 ;;
 457 ;;  F1-14 Help Do F17-F20
 458 ;;
 459 ")
 460 (set-buffer "Directions")
 461
 462 (edt-map-key "F1"        " - F1 Function Key")
 463 (edt-map-key "F2"        " - F2 Function Key")
 464 (edt-map-key "F3"        " - F3 Function Key")
 465 (edt-map-key "F4"        " - F4 Function Key")
 466 (edt-map-key "F5"        " - F5 Function Key")
 467 (edt-map-key "F6"        " - F6 Function Key")
 468 (edt-map-key "F7"        " - F7 Function Key")
 469 (edt-map-key "F8"        " - F8 Function Key")
 470 (edt-map-key "F9"        " - F9 Function Key")
 471 (edt-map-key "F10"       " - F10 Function Key")
 472 (edt-map-key "F11"       " - F11 Function Key")
 473 (edt-map-key "F12"       " - F12 Function Key")
 474 (edt-map-key "F13"       " - F13 Function Key")
 475 (edt-map-key "F14"       " - F14 Function Key")
 476 (edt-map-key "HELP"      " - HELP Function Key")
 477 (edt-map-key "DO"        " - DO Function Key")
 478 (edt-map-key "F17"       " - F17 Function Key")
 479 (edt-map-key "F18"       " - F18 Function Key")
 480 (edt-map-key "F19"       " - F19 Function Key")
 481 (edt-map-key "F20"       " - F20 Function Key")
 482
 483 (set-buffer "Directions")
 484 (delete-region (point-min) (point-max))
 485 (insert "
 486                        ADDITIONAL FUNCTION KEYS
 487
 488     Your keyboard may have additional function keys which do not correspond
 489     to any LK-201 keys.  The EDT Emulation can be configured to recognize
 490     those keys, since you may wish to add your own key bindings to those keys.
 491
 492     For example, suppose your keyboard has a keycap marked \"Line Del\" and
 493     you wish to add it to the list of keys which can be customized by the EDT
 494     Emulation.  First, assign a unique single-word name to the key for use by
 495     the EDT Emulation, for example, \"linedel\".  Then, at the \"EDT Key
 496     Name:\" prompt, enter \"linedel\", followed by a press of the RETURN key.
 497     Finally, when prompted, press the \"Line Del\" key.  You now will be able
 498     to bind functions to \"linedel\" and \"Gold-linedel\" in edt-user.el in
 499     just the same way you can customize bindings of the LK-201 function and
 500     keypad keys.
 501
 502     When you are done, just press RETURN at the \"EDT Key Name:\" prompt.
 503 ")
 504 (switch-to-buffer "Directions")
 505 ;;;
 506 ;;;  Add support for extras keys
 507 ;;;
 508 (set-buffer "Keys")
 509 (insert "\
 510 ;;
 511 ;;  Extra Keys
 512 ;;
 513 ")
 514 ;;;
 515 ;;;  Restore function-key-map.
 516 ;;;
 517 (if (and edt-window-system (not (featurep 'xemacs)))
 518     (setq function-key-map edt-save-function-key-map))
 519 (setq EDT-key-name "")
 520 (while (not
 521         (string-equal (setq EDT-key-name (read-string "EDT Key Name: ")) ""))
 522   (edt-map-key EDT-key-name ""))
 523
 524 ;
 525 ; No more keys to add, so wrap up.
 526 ;
 527 (set-buffer "Keys")
 528 (insert "\
 529     )
 530   )
 531 ")
 532
 533 ;;;
 534 ;;;  Save the key mapping program
 535 ;;;
 536 ;;;
 537 ;;;  Save the key mapping file
 538 ;;;
 539 (let ((file (concat
 540              "~/.edt-" (if (featurep 'xemacs) "xemacs" "gnu")
 541              (if edt-term (concat "-" edt-term))
 542              (if edt-xserver (concat "-" edt-xserver))
 543              (if edt-window-system (concat "-" (upcase (symbol-name edt-window-system))))
 544              "-keys")))
 545   (set-visited-file-name
 546    (read-file-name (format "Save key mapping to file (default %s): " file) nil file)))
 547 (save-buffer)
 548
 549 (message "That's it!  Press any key to exit")
 550 (sit-for 600)
 551 (kill-emacs t)
 552
 553 ;;; edt-mapper.el ends here