lisp/emulation/ws-mode.el

   1 ;;; ws-mode.el --- WordStar emulation mode for GNU Emacs
   2
   3 ;; Copyright (C) 1991 Free Software Foundation, Inc.
   4
   5 ;; Author: Juergen Nickelsen <nickel@cs.tu-berlin.de>
   6 ;; Version: 0.7
   7 ;; Keywords: emulations
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 ;; Boston, MA 02111-1307, USA.
  25
  26 ;;; Commentary:
  27
  28 ;; This emulates WordStar, with a major mode.
  29
  30 ;;; Code:
  31
  32 (defvar wordstar-mode-map nil "")
  33 (defvar wordstar-C-j-map nil "")
  34 (defvar wordstar-C-k-map nil "")
  35 (defvar wordstar-C-o-map nil "")
  36 (defvar wordstar-C-q-map nil "")
  37
  38 (if wordstar-mode-map
  39     ()
  40   (setq wordstar-mode-map (make-keymap))
  41   ;;  (setq wordstar-C-j-map (make-keymap)) ; later, perhaps
  42   (setq wordstar-C-k-map (make-keymap))
  43   (setq wordstar-C-o-map (make-keymap))
  44   (setq wordstar-C-q-map (make-keymap))
  45
  46   (define-key wordstar-mode-map "\C-a" 'backward-word)
  47   (define-key wordstar-mode-map "\C-b" 'fill-paragraph)
  48   (define-key wordstar-mode-map "\C-c" 'scroll-up)
  49   (define-key wordstar-mode-map "\C-d" 'forward-char)
  50   (define-key wordstar-mode-map "\C-e" 'previous-line)
  51   (define-key wordstar-mode-map "\C-f" 'forward-word)
  52   (define-key wordstar-mode-map "\C-g" 'delete-char)
  53   (define-key wordstar-mode-map "\C-h" 'backward-char)
  54   (define-key wordstar-mode-map "\C-i" 'indent-for-tab-command)
  55   (define-key wordstar-mode-map "\C-j" 'help-for-help)
  56   (define-key wordstar-mode-map "\C-k" wordstar-C-k-map)
  57   (define-key wordstar-mode-map "\C-l" 'ws-repeat-search)
  58   (define-key wordstar-mode-map "\C-n" 'open-line)
  59   (define-key wordstar-mode-map "\C-o" wordstar-C-o-map)
  60   (define-key wordstar-mode-map "\C-p" 'quoted-insert)
  61   (define-key wordstar-mode-map "\C-q" wordstar-C-q-map)
  62   (define-key wordstar-mode-map "\C-r" 'scroll-down)
  63   (define-key wordstar-mode-map "\C-s" 'backward-char)
  64   (define-key wordstar-mode-map "\C-t" 'kill-word)
  65   (define-key wordstar-mode-map "\C-u" 'keyboard-quit)
  66   (define-key wordstar-mode-map "\C-v" 'overwrite-mode)
  67   (define-key wordstar-mode-map "\C-w" 'scroll-down-line)
  68   (define-key wordstar-mode-map "\C-x" 'next-line)
  69   (define-key wordstar-mode-map "\C-y" 'kill-complete-line)
  70   (define-key wordstar-mode-map "\C-z" 'scroll-up-line)
  71
  72   ;; wordstar-C-k-map
  73
  74   (define-key wordstar-C-k-map " " ())
  75   (define-key wordstar-C-k-map "0" 'ws-set-marker-0)
  76   (define-key wordstar-C-k-map "1" 'ws-set-marker-1)
  77   (define-key wordstar-C-k-map "2" 'ws-set-marker-2)
  78   (define-key wordstar-C-k-map "3" 'ws-set-marker-3)
  79   (define-key wordstar-C-k-map "4" 'ws-set-marker-4)
  80   (define-key wordstar-C-k-map "5" 'ws-set-marker-5)
  81   (define-key wordstar-C-k-map "6" 'ws-set-marker-6)
  82   (define-key wordstar-C-k-map "7" 'ws-set-marker-7)
  83   (define-key wordstar-C-k-map "8" 'ws-set-marker-8)
  84   (define-key wordstar-C-k-map "9" 'ws-set-marker-9)
  85   (define-key wordstar-C-k-map "b" 'ws-begin-block)
  86   (define-key wordstar-C-k-map "\C-b" 'ws-begin-block)
  87   (define-key wordstar-C-k-map "c" 'ws-copy-block)
  88   (define-key wordstar-C-k-map "\C-c" 'ws-copy-block)
  89   (define-key wordstar-C-k-map "d" 'save-buffers-kill-emacs)
  90   (define-key wordstar-C-k-map "\C-d" 'save-buffers-kill-emacs)
  91   (define-key wordstar-C-k-map "f" 'find-file)
  92   (define-key wordstar-C-k-map "\C-f" 'find-file)
  93   (define-key wordstar-C-k-map "h" 'ws-show-markers)
  94   (define-key wordstar-C-k-map "\C-h" 'ws-show-markers)
  95   (define-key wordstar-C-k-map "i" 'ws-indent-block)
  96   (define-key wordstar-C-k-map "\C-i" 'ws-indent-block)
  97   (define-key wordstar-C-k-map "k" 'ws-end-block)
  98   (define-key wordstar-C-k-map "\C-k" 'ws-end-block)
  99   (define-key wordstar-C-k-map "p" 'ws-print-block)
 100   (define-key wordstar-C-k-map "\C-p" 'ws-print-block)
 101   (define-key wordstar-C-k-map "q" 'kill-emacs)
 102   (define-key wordstar-C-k-map "\C-q" 'kill-emacs)
 103   (define-key wordstar-C-k-map "r" 'insert-file)
 104   (define-key wordstar-C-k-map "\C-r" 'insert-file)
 105   (define-key wordstar-C-k-map "s" 'save-some-buffers)
 106   (define-key wordstar-C-k-map "\C-s" 'save-some-buffers)
 107   (define-key wordstar-C-k-map "t" 'ws-mark-word)
 108   (define-key wordstar-C-k-map "\C-t" 'ws-mark-word)
 109   (define-key wordstar-C-k-map "u" 'ws-exdent-block)
 110   (define-key wordstar-C-k-map "\C-u" 'keyboard-quit)
 111   (define-key wordstar-C-k-map "v" 'ws-move-block)
 112   (define-key wordstar-C-k-map "\C-v" 'ws-move-block)
 113   (define-key wordstar-C-k-map "w" 'ws-write-block)
 114   (define-key wordstar-C-k-map "\C-w" 'ws-write-block)
 115   (define-key wordstar-C-k-map "x" 'save-buffers-kill-emacs)
 116   (define-key wordstar-C-k-map "\C-x" 'save-buffers-kill-emacs)
 117   (define-key wordstar-C-k-map "y" 'ws-delete-block)
 118   (define-key wordstar-C-k-map "\C-y" 'ws-delete-block)
 119
 120   ;; wordstar-C-j-map not yet implemented
 121
 122   ;; wordstar-C-o-map
 123
 124   (define-key wordstar-C-o-map " " ())
 125   (define-key wordstar-C-o-map "c" 'wordstar-center-line)
 126   (define-key wordstar-C-o-map "\C-c" 'wordstar-center-line)
 127   (define-key wordstar-C-o-map "b" 'switch-to-buffer)
 128   (define-key wordstar-C-o-map "\C-b" 'switch-to-buffer)
 129   (define-key wordstar-C-o-map "j" 'justify-current-line)
 130   (define-key wordstar-C-o-map "\C-j" 'justify-current-line)
 131   (define-key wordstar-C-o-map "k" 'kill-buffer)
 132   (define-key wordstar-C-o-map "\C-k" 'kill-buffer)
 133   (define-key wordstar-C-o-map "l" 'list-buffers)
 134   (define-key wordstar-C-o-map "\C-l" 'list-buffers)
 135   (define-key wordstar-C-o-map "m" 'auto-fill-mode)
 136   (define-key wordstar-C-o-map "\C-m" 'auto-fill-mode)
 137   (define-key wordstar-C-o-map "r" 'set-fill-column)
 138   (define-key wordstar-C-o-map "\C-r" 'set-fill-column)
 139   (define-key wordstar-C-o-map "\C-u" 'keyboard-quit)
 140   (define-key wordstar-C-o-map "wd" 'delete-other-windows)
 141   (define-key wordstar-C-o-map "wh" 'split-window-horizontally)
 142   (define-key wordstar-C-o-map "wo" 'other-window)
 143   (define-key wordstar-C-o-map "wv" 'split-window-vertically)
 144
 145   ;; wordstar-C-q-map
 146   (define-key wordstar-C-q-map " " ())
 147   (define-key wordstar-C-q-map "0" 'ws-find-marker-0)
 148   (define-key wordstar-C-q-map "1" 'ws-find-marker-1)
 149   (define-key wordstar-C-q-map "2" 'ws-find-marker-2)
 150   (define-key wordstar-C-q-map "3" 'ws-find-marker-3)
 151   (define-key wordstar-C-q-map "4" 'ws-find-marker-4)
 152   (define-key wordstar-C-q-map "5" 'ws-find-marker-5)
 153   (define-key wordstar-C-q-map "6" 'ws-find-marker-6)
 154   (define-key wordstar-C-q-map "7" 'ws-find-marker-7)
 155   (define-key wordstar-C-q-map "8" 'ws-find-marker-8)
 156   (define-key wordstar-C-q-map "9" 'ws-find-marker-9)
 157   (define-key wordstar-C-q-map "a" 'ws-query-replace)
 158   (define-key wordstar-C-q-map "\C-a" 'ws-query-replace)
 159   (define-key wordstar-C-q-map "b" 'ws-goto-block-begin)
 160   (define-key wordstar-C-q-map "\C-b" 'ws-goto-block-begin)
 161   (define-key wordstar-C-q-map "c" 'end-of-buffer)
 162   (define-key wordstar-C-q-map "\C-c" 'end-of-buffer)
 163   (define-key wordstar-C-q-map "d" 'end-of-line)
 164   (define-key wordstar-C-q-map "\C-d" 'end-of-line)
 165   (define-key wordstar-C-q-map "f" 'ws-search)
 166   (define-key wordstar-C-q-map "\C-f" 'ws-search)
 167   (define-key wordstar-C-q-map "k" 'ws-goto-block-end)
 168   (define-key wordstar-C-q-map "\C-k" 'ws-goto-block-end)
 169   (define-key wordstar-C-q-map "l" 'ws-undo)
 170   (define-key wordstar-C-q-map "\C-l" 'ws-undo)
 171   (define-key wordstar-C-q-map "p" 'ws-last-cursorp)
 172   (define-key wordstar-C-q-map "\C-p" 'ws-last-cursorp)
 173   (define-key wordstar-C-q-map "r" 'beginning-of-buffer)
 174   (define-key wordstar-C-q-map "\C-r" 'beginning-of-buffer)
 175   (define-key wordstar-C-q-map "s" 'beginning-of-line)
 176   (define-key wordstar-C-q-map "\C-s" 'beginning-of-line)
 177   (define-key wordstar-C-q-map "\C-u" 'keyboard-quit)
 178   (define-key wordstar-C-q-map "w" 'ws-last-error)
 179   (define-key wordstar-C-q-map "\C-w" 'ws-last-error)
 180   (define-key wordstar-C-q-map "y" 'ws-kill-eol)
 181   (define-key wordstar-C-q-map "\C-y" 'ws-kill-eol)
 182   (define-key wordstar-C-q-map "\177" 'ws-kill-bol))
 183
 184 ;;;###autoload
 185 (defun wordstar-mode ()
 186   "Major mode with WordStar-like key bindings.
 187
 188 BUGS:
 189  - Help menus with WordStar commands (C-j just calls help-for-help)
 190    are not implemented
 191  - Options for search and replace
 192  - Show markers (C-k h) is somewhat strange
 193  - Search and replace (C-q a) is only available in forward direction
 194
 195 No key bindings beginning with ESC are installed, they will work
 196 Emacs-like.
 197
 198 The key bindings are:
 199
 200   C-a           backward-word
 201   C-b           fill-paragraph
 202   C-c           scroll-up-line
 203   C-d           forward-char
 204   C-e           previous-line
 205   C-f           forward-word
 206   C-g           delete-char
 207   C-h           backward-char
 208   C-i           indent-for-tab-command
 209   C-j           help-for-help
 210   C-k           ordstar-C-k-map
 211   C-l           ws-repeat-search
 212   C-n           open-line
 213   C-p           quoted-insert
 214   C-r           scroll-down-line
 215   C-s           backward-char
 216   C-t           kill-word
 217   C-u           keyboard-quit
 218   C-v           overwrite-mode
 219   C-w           scroll-down
 220   C-x           next-line
 221   C-y           kill-complete-line
 222   C-z           scroll-up
 223
 224   C-k 0         ws-set-marker-0
 225   C-k 1         ws-set-marker-1
 226   C-k 2         ws-set-marker-2
 227   C-k 3         ws-set-marker-3
 228   C-k 4         ws-set-marker-4
 229   C-k 5         ws-set-marker-5
 230   C-k 6         ws-set-marker-6
 231   C-k 7         ws-set-marker-7
 232   C-k 8         ws-set-marker-8
 233   C-k 9         ws-set-marker-9
 234   C-k b         ws-begin-block
 235   C-k c         ws-copy-block
 236   C-k d         save-buffers-kill-emacs
 237   C-k f         find-file
 238   C-k h         ws-show-markers
 239   C-k i         ws-indent-block
 240   C-k k         ws-end-block
 241   C-k p         ws-print-block
 242   C-k q         kill-emacs
 243   C-k r         insert-file
 244   C-k s         save-some-buffers
 245   C-k t         ws-mark-word
 246   C-k u         ws-exdent-block
 247   C-k C-u       keyboard-quit
 248   C-k v         ws-move-block
 249   C-k w         ws-write-block
 250   C-k x         kill-emacs
 251   C-k y         ws-delete-block
 252
 253   C-o c         wordstar-center-line
 254   C-o b         switch-to-buffer
 255   C-o j         justify-current-line
 256   C-o k         kill-buffer
 257   C-o l         list-buffers
 258   C-o m         auto-fill-mode
 259   C-o r         set-fill-column
 260   C-o C-u       keyboard-quit
 261   C-o wd        delete-other-windows
 262   C-o wh        split-window-horizontally
 263   C-o wo        other-window
 264   C-o wv        split-window-vertically
 265
 266   C-q 0         ws-find-marker-0
 267   C-q 1         ws-find-marker-1
 268   C-q 2         ws-find-marker-2
 269   C-q 3         ws-find-marker-3
 270   C-q 4         ws-find-marker-4
 271   C-q 5         ws-find-marker-5
 272   C-q 6         ws-find-marker-6
 273   C-q 7         ws-find-marker-7
 274   C-q 8         ws-find-marker-8
 275   C-q 9         ws-find-marker-9
 276   C-q a         ws-query-replace
 277   C-q b         ws-to-block-begin
 278   C-q c         end-of-buffer
 279   C-q d         end-of-line
 280   C-q f         ws-search
 281   C-q k         ws-to-block-end
 282   C-q l         ws-undo
 283   C-q p         ws-last-cursorp
 284   C-q r         beginning-of-buffer
 285   C-q C-u       keyboard-quit
 286   C-q w         ws-last-error
 287   C-q y         ws-kill-eol
 288   C-q DEL       ws-kill-bol
 289 "
 290   (interactive)
 291   (kill-all-local-variables)
 292   (use-local-map wordstar-mode-map)
 293   (setq mode-name "WordStar")
 294   (setq major-mode 'wordstar-mode))
 295
 296
 297 (defun wordstar-center-paragraph ()
 298   "Center each line in the paragraph at or after point.
 299 See `wordstar-center-line' for more info."
 300   (interactive)
 301   (save-excursion
 302     (forward-paragraph)
 303     (or (bolp) (newline 1))
 304     (let ((end (point)))
 305       (backward-paragraph)
 306       (wordstar-center-region (point) end))))
 307
 308 (defun wordstar-center-region (from to)
 309   "Center each line starting in the region.
 310 See `wordstar-center-line' for more info."
 311   (interactive "r")
 312   (if (> from to)
 313       (let ((tem to))
 314         (setq to from from tem)))
 315   (save-excursion
 316     (save-restriction
 317       (narrow-to-region from to)
 318       (goto-char from)
 319       (while (not (eobp))
 320         (wordstar-center-line)
 321         (forward-line 1)))))
 322
 323 (defun wordstar-center-line ()
 324   "Center the line point is on, within the width specified by `fill-column'.
 325 This means adjusting the indentation to match
 326 the distance between the end of the text and `fill-column'."
 327   (interactive)
 328   (save-excursion
 329     (let (line-length)
 330       (beginning-of-line)
 331       (delete-horizontal-space)
 332       (end-of-line)
 333       (delete-horizontal-space)
 334       (setq line-length (current-column))
 335       (beginning-of-line)
 336       (indent-to
 337        (+ left-margin
 338           (/ (- fill-column left-margin line-length) 2))))))
 339
 340 (defun scroll-down-line ()
 341   "Scroll one line down."
 342   (interactive)
 343   (scroll-down 1))
 344
 345 (defun scroll-up-line ()
 346   "Scroll one line up."
 347   (interactive)
 348   (scroll-up 1))
 349
 350 ;;;;;;;;;;;
 351 ;; wordstar special variables:
 352
 353 (defvar ws-marker-0 nil "Position marker 0 in WordStar mode.")
 354 (defvar ws-marker-1 nil "Position marker 1 in WordStar mode.")
 355 (defvar ws-marker-2 nil "Position marker 2 in WordStar mode.")
 356 (defvar ws-marker-3 nil "Position marker 3 in WordStar mode.")
 357 (defvar ws-marker-4 nil "Position marker 4 in WordStar mode.")
 358 (defvar ws-marker-5 nil "Position marker 5 in WordStar mode.")
 359 (defvar ws-marker-6 nil "Position marker 6 in WordStar mode.")
 360 (defvar ws-marker-7 nil "Position marker 7 in WordStar mode.")
 361 (defvar ws-marker-8 nil "Position marker 8 in WordStar mode.")
 362 (defvar ws-marker-9 nil "Position marker 9 in WordStar mode.")
 363
 364 (defvar ws-block-begin-marker nil "Beginning of \"Block\" in WordStar mode.")
 365 (defvar ws-block-end-marker nil "End of \"Block\" in WordStar mode.")
 366
 367 (defvar ws-search-string nil "String of last search in WordStar mode.")
 368 (defvar ws-search-direction t
 369   "Direction of last search in WordStar mode. T if forward, NIL if backward.")
 370
 371 (defvar ws-last-cursorposition nil
 372   "Position before last search etc. in WordStar mode.")
 373
 374 (defvar ws-last-errormessage nil
 375   "Last error message issued by a WordStar mode function.")
 376
 377 ;;;;;;;;;;;
 378 ;; wordstar special functions:
 379
 380 (defun ws-error (string)
 381   "Report error of a WordStar special function. Error message is saved
 382 in ws-last-errormessage for recovery with C-q w."
 383   (setq ws-last-errormessage string)
 384   (error string))
 385
 386 (defun ws-set-marker-0 ()
 387   "In WordStar mode: Set marker 0 to current cursor position."
 388   (interactive)
 389   (setq ws-marker-0 (point-marker))
 390   (message "Marker 0 set"))
 391
 392 (defun ws-set-marker-1 ()
 393   "In WordStar mode: Set marker 1 to current cursor position."
 394   (interactive)
 395   (setq ws-marker-1 (point-marker))
 396   (message "Marker 1 set"))
 397
 398 (defun ws-set-marker-2 ()
 399   "In WordStar mode: Set marker 2 to current cursor position."
 400   (interactive)
 401   (setq ws-marker-2 (point-marker))
 402   (message "Marker 2 set"))
 403
 404 (defun ws-set-marker-3 ()
 405   "In WordStar mode: Set marker 3 to current cursor position."
 406   (interactive)
 407   (setq ws-marker-3 (point-marker))
 408   (message "Marker 3 set"))
 409
 410 (defun ws-set-marker-4 ()
 411   "In WordStar mode: Set marker 4 to current cursor position."
 412   (interactive)
 413   (setq ws-marker-4 (point-marker))
 414   (message "Marker 4 set"))
 415
 416 (defun ws-set-marker-5 ()
 417   "In WordStar mode: Set marker 5 to current cursor position."
 418   (interactive)
 419   (setq ws-marker-5 (point-marker))
 420   (message "Marker 5 set"))
 421
 422 (defun ws-set-marker-6 ()
 423   "In WordStar mode: Set marker 6 to current cursor position."
 424   (interactive)
 425   (setq ws-marker-6 (point-marker))
 426   (message "Marker 6 set"))
 427
 428 (defun ws-set-marker-7 ()
 429   "In WordStar mode: Set marker 7 to current cursor position."
 430   (interactive)
 431   (setq ws-marker-7 (point-marker))
 432   (message "Marker 7 set"))
 433
 434 (defun ws-set-marker-8 ()
 435   "In WordStar mode: Set marker 8 to current cursor position."
 436   (interactive)
 437   (setq ws-marker-8 (point-marker))
 438   (message "Marker 8 set"))
 439
 440 (defun ws-set-marker-9 ()
 441   "In WordStar mode: Set marker 9 to current cursor position."
 442   (interactive)
 443   (setq ws-marker-9 (point-marker))
 444   (message "Marker 9 set"))
 445
 446 (defun ws-begin-block ()
 447   "In WordStar mode: Set block begin marker to current cursor position."
 448   (interactive)
 449   (setq ws-block-begin-marker (point-marker))
 450   (message "Block begin marker set"))
 451
 452 (defun ws-show-markers ()
 453   "In WordStar mode: Show block markers."
 454   (interactive)
 455   (if (or ws-block-begin-marker ws-block-end-marker)
 456       (save-excursion
 457         (if ws-block-begin-marker
 458             (let ()
 459               (goto-char ws-block-begin-marker)
 460               (message "Block begin marker")
 461               (sit-for 2))
 462           (message "Block begin marker not set")
 463           (sit-for 2))
 464         (if ws-block-end-marker
 465             (let ()
 466               (goto-char ws-block-end-marker)
 467               (message "Block end marker")
 468               (sit-for 2))
 469           (message "Block end marker not set"))
 470         (message ""))
 471     (message "Block markers not set")))
 472
 473
 474 (defun ws-indent-block ()
 475   "In WordStar mode: Indent block (not yet implemented)."
 476   (interactive)
 477   (ws-error "Indent block not yet implemented"))
 478
 479 (defun ws-end-block ()
 480   "In WordStar mode: Set block end marker to current cursor position."
 481   (interactive)
 482   (setq ws-block-end-marker (point-marker))
 483   (message "Block end marker set"))
 484
 485 (defun ws-print-block ()
 486   "In WordStar mode: Print block."
 487   (interactive)
 488   (message "Don't do this. Write block to a file (C-k w) and print this file."))
 489
 490 (defun ws-mark-word ()
 491   "In WordStar mode: Mark current word as block."
 492   (interactive)
 493   (save-excursion
 494     (forward-word 1)
 495     (sit-for 1)
 496     (ws-end-block)
 497     (forward-word -1)
 498     (sit-for 1)
 499     (ws-begin-block)))
 500
 501 (defun ws-exdent-block ()
 502   "I don't know what this (C-k u) should do."
 503   (interactive)
 504   (ws-error "This won't be done -- not yet implemented."))
 505
 506 (defun ws-move-block ()
 507   "In WordStar mode: Move block to current cursor position."
 508   (interactive)
 509   (if (and ws-block-begin-marker ws-block-end-marker)
 510       (let ()
 511         (kill-region ws-block-begin-marker ws-block-end-marker)
 512         (yank)
 513         (save-excursion
 514           (goto-char (region-beginning))
 515           (setq ws-block-begin-marker (point-marker))
 516           (goto-char (region-end))
 517           (setq ws-block-end-marker (point-marker))))
 518     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 519                     (ws-block-end-marker "Block begin marker not set")
 520                     (t "Block markers not set")))))
 521
 522 (defun ws-write-block ()
 523   "In WordStar mode: Write block to file."
 524   (interactive)
 525   (if (and ws-block-begin-marker ws-block-end-marker)
 526       (let ((filename (read-file-name "Write block to file: ")))
 527         (write-region ws-block-begin-marker ws-block-end-marker filename))
 528     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 529                     (ws-block-end-marker "Block begin marker not set")
 530                     (t "Block markers not set")))))
 531
 532
 533 (defun ws-delete-block ()
 534   "In WordStar mode: Delete block."
 535   (interactive)
 536   (if (and ws-block-begin-marker ws-block-end-marker)
 537       (let ()
 538         (kill-region ws-block-begin-marker ws-block-end-marker)
 539         (setq ws-block-end-marker nil)
 540         (setq ws-block-begin-marker nil))
 541     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 542                     (ws-block-end-marker "Block begin marker not set")
 543                     (t "Block markers not set")))))
 544
 545 (defun ws-find-marker-0 ()
 546   "In WordStar mode: Go to marker 0."
 547   (interactive)
 548   (if ws-marker-0
 549       (let ()
 550         (setq ws-last-cursorposition (point-marker))
 551         (goto-char ws-marker-0))
 552     (ws-error "Marker 0 not set")))
 553
 554 (defun ws-find-marker-1 ()
 555   "In WordStar mode: Go to marker 1."
 556   (interactive)
 557   (if ws-marker-1
 558       (let ()
 559         (setq ws-last-cursorposition (point-marker))
 560         (goto-char ws-marker-1))
 561     (ws-error "Marker 1 not set")))
 562
 563 (defun ws-find-marker-2 ()
 564   "In WordStar mode: Go to marker 2."
 565   (interactive)
 566   (if ws-marker-2
 567       (let ()
 568         (setq ws-last-cursorposition (point-marker))
 569         (goto-char ws-marker-2))
 570     (ws-error "Marker 2 not set")))
 571
 572 (defun ws-find-marker-3 ()
 573   "In WordStar mode: Go to marker 3."
 574   (interactive)
 575   (if ws-marker-3
 576       (let ()
 577         (setq ws-last-cursorposition (point-marker))
 578         (goto-char ws-marker-3))
 579     (ws-error "Marker 3 not set")))
 580
 581 (defun ws-find-marker-4 ()
 582   "In WordStar mode: Go to marker 4."
 583   (interactive)
 584   (if ws-marker-4
 585       (let ()
 586         (setq ws-last-cursorposition (point-marker))
 587         (goto-char ws-marker-4))
 588     (ws-error "Marker 4 not set")))
 589
 590 (defun ws-find-marker-5 ()
 591   "In WordStar mode: Go to marker 5."
 592   (interactive)
 593   (if ws-marker-5
 594       (let ()
 595         (setq ws-last-cursorposition (point-marker))
 596         (goto-char ws-marker-5))
 597     (ws-error "Marker 5 not set")))
 598
 599 (defun ws-find-marker-6 ()
 600   "In WordStar mode: Go to marker 6."
 601   (interactive)
 602   (if ws-marker-6
 603       (let ()
 604         (setq ws-last-cursorposition (point-marker))
 605         (goto-char ws-marker-6))
 606     (ws-error "Marker 6 not set")))
 607
 608 (defun ws-find-marker-7 ()
 609   "In WordStar mode: Go to marker 7."
 610   (interactive)
 611   (if ws-marker-7
 612       (let ()
 613         (setq ws-last-cursorposition (point-marker))
 614         (goto-char ws-marker-7))
 615     (ws-error "Marker 7 not set")))
 616
 617 (defun ws-find-marker-8 ()
 618   "In WordStar mode: Go to marker 8."
 619   (interactive)
 620   (if ws-marker-8
 621       (let ()
 622         (setq ws-last-cursorposition (point-marker))
 623         (goto-char ws-marker-8))
 624     (ws-error "Marker 8 not set")))
 625
 626 (defun ws-find-marker-9 ()
 627   "In WordStar mode: Go to marker 9."
 628   (interactive)
 629   (if ws-marker-9
 630       (let ()
 631         (setq ws-last-cursorposition (point-marker))
 632         (goto-char ws-marker-9))
 633     (ws-error "Marker 9 not set")))
 634
 635 (defun ws-goto-block-begin ()
 636   "In WordStar mode: Go to block begin marker."
 637   (interactive)
 638   (if ws-block-begin-marker
 639       (let ()
 640         (setq ws-last-cursorposition (point-marker))
 641         (goto-char ws-block-begin-marker))
 642     (ws-error "Block begin marker not set")))
 643
 644 (defun ws-search (string)
 645   "In WordStar mode: Search string, remember string for repetition."
 646   (interactive "sSearch for: ")
 647   (message "Forward (f) or backward (b)")
 648   (let ((direction
 649          (read-char)))
 650     (cond ((equal (upcase direction) ?F)
 651            (setq ws-search-string string)
 652            (setq ws-search-direction t)
 653            (setq ws-last-cursorposition (point-marker))
 654            (search-forward string))
 655           ((equal (upcase direction) ?B)
 656            (setq ws-search-string string)
 657            (setq ws-search-direction nil)
 658            (setq ws-last-cursorposition (point-marker))
 659            (search-backward string))
 660           (t (keyboard-quit)))))
 661
 662 (defun ws-goto-block-end ()
 663   "In WordStar mode: Go to block end marker."
 664   (interactive)
 665   (if ws-block-end-marker
 666       (let ()
 667         (setq ws-last-cursorposition (point-marker))
 668         (goto-char ws-block-end-marker))
 669     (ws-error "Block end marker not set")))
 670
 671 (defun ws-undo ()
 672   "In WordStar mode: Undo and give message about undoing more changes."
 673   (interactive)
 674   (undo)
 675   (message "Repeat C-q l to undo more changes."))
 676
 677 (defun ws-goto-last-cursorposition ()
 678   "In WordStar mode: "
 679   (interactive)
 680   (if ws-last-cursorposition
 681       (let ()
 682         (setq ws-last-cursorposition (point-marker))
 683         (goto-char ws-last-cursorposition))
 684     (ws-error "No last cursor position available.")))
 685
 686 (defun ws-last-error ()
 687   "In WordStar mode: repeat last error message.
 688 This will only work for errors raised by WordStar mode functions."
 689   (interactive)
 690   (if ws-last-errormessage
 691       (message ws-last-errormessage)
 692     (message "No WordStar error yet.")))
 693
 694 (defun ws-kill-eol ()
 695   "In WordStar mode: Kill to end of line (like WordStar, not like Emacs)."
 696   (interactive)
 697   (let ((p (point)))
 698     (end-of-line)
 699     (kill-region p (point))))
 700
 701 (defun ws-kill-bol ()
 702   "In WordStar mode: Kill to beginning of line
 703 \(like WordStar, not like Emacs)."
 704   (interactive)
 705   (let ((p (point)))
 706     (beginning-of-line)
 707     (kill-region (point) p)))
 708
 709 (defun kill-complete-line ()
 710   "Kill the complete line."
 711   (interactive)
 712   (beginning-of-line)
 713   (if (eobp) (error "End of buffer"))
 714   (let ((beg (point)))
 715     (forward-line 1)
 716     (kill-region beg (point))))
 717
 718 (defun ws-repeat-search ()
 719   "In WordStar mode: Repeat last search."
 720   (interactive)
 721   (setq ws-last-cursorposition (point-marker))
 722   (if ws-search-string
 723       (if ws-search-direction
 724           (search-forward ws-search-string)
 725         (search-backward ws-search-string))
 726     (ws-error "No search to repeat")))
 727
 728 (defun ws-query-replace (from to)
 729   "In WordStar mode: Search string, remember string for repetition."
 730   (interactive "sReplace:
 731 sWith: " )
 732   (setq ws-search-string from)
 733   (setq ws-search-direction t)
 734   (setq ws-last-cursorposition (point-marker))
 735   (query-replace from to))
 736
 737 (defun ws-copy-block ()
 738   "In WordStar mode: Copy block to current cursor position."
 739   (interactive)
 740   (if (and ws-block-begin-marker ws-block-end-marker)
 741       (let ()
 742         (copy-region-as-kill ws-block-begin-marker ws-block-end-marker)
 743         (yank)
 744         (save-excursion
 745           (goto-char (region-beginning))
 746           (setq ws-block-begin-marker (point-marker))
 747           (goto-char (region-end))
 748           (setq ws-block-end-marker (point-marker))))
 749     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 750                     (ws-block-end-marker "Block begin marker not set")
 751                     (t "Block markers not set")))))
 752
 753 ;;; ws-mode.el ends here