code.delx.au - gnu-emacs/blob - 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 distributed in the hope that it will be useful,
  10 ;; but WITHOUT ANY WARRANTY.  No author or distributor
  11 ;; accepts responsibility to anyone for the consequences of using it
  12 ;; or for whether it serves any particular purpose or works at all,
  13 ;; unless he says so in writing.  Refer to the GNU Emacs General Public
  14 ;; License for full details.
  15
  16 ;; Everyone is granted permission to copy, modify and redistribute
  17 ;; this file, but only under the conditions described in the
  18 ;; GNU Emacs General Public License.   A copy of this license is
  19 ;; supposed to have been given to you along with GNU Emacs so you
  20 ;; can know your rights and responsibilities.  It should be in a
  21 ;; file named COPYING.  Among other things, the copyright notice
  22 ;; and this notice must be preserved on all copies.
  23
  24 ;;; Commentary:
  25
  26 ;; This emulates WordStar, with a major mode.
  27
  28 ;;; Code:
  29
  30 (defvar wordstar-mode-map nil "")
  31 (defvar wordstar-C-j-map nil "")
  32 (defvar wordstar-C-k-map nil "")
  33 (defvar wordstar-C-o-map nil "")
  34 (defvar wordstar-C-q-map nil "")
  35
  36 (if wordstar-mode-map
  37     ()
  38   (setq wordstar-mode-map (make-keymap))
  39   ;;  (setq wordstar-C-j-map (make-keymap)) ; later, perhaps
  40   (setq wordstar-C-k-map (make-keymap))
  41   (setq wordstar-C-o-map (make-keymap))
  42   (setq wordstar-C-q-map (make-keymap))
  43
  44   (define-key wordstar-mode-map "\C-a" 'backward-word)
  45   (define-key wordstar-mode-map "\C-b" 'fill-paragraph)
  46   (define-key wordstar-mode-map "\C-c" 'scroll-up)
  47   (define-key wordstar-mode-map "\C-d" 'forward-char)
  48   (define-key wordstar-mode-map "\C-e" 'previous-line)
  49   (define-key wordstar-mode-map "\C-f" 'forward-word)
  50   (define-key wordstar-mode-map "\C-g" 'delete-char)
  51   (define-key wordstar-mode-map "\C-h" 'backward-char)
  52   (define-key wordstar-mode-map "\C-i" 'indent-for-tab-command)
  53   (define-key wordstar-mode-map "\C-j" 'help-for-help)
  54   (define-key wordstar-mode-map "\C-k" wordstar-C-k-map)
  55   (define-key wordstar-mode-map "\C-l" 'ws-repeat-search)
  56   (define-key wordstar-mode-map "\C-n" 'open-line)
  57   (define-key wordstar-mode-map "\C-o" wordstar-C-o-map)
  58   (define-key wordstar-mode-map "\C-p" 'quoted-insert)
  59   (define-key wordstar-mode-map "\C-q" wordstar-C-q-map)
  60   (define-key wordstar-mode-map "\C-r" 'scroll-down)
  61   (define-key wordstar-mode-map "\C-s" 'backward-char)
  62   (define-key wordstar-mode-map "\C-t" 'kill-word)
  63   (define-key wordstar-mode-map "\C-u" 'keyboard-quit)
  64   (define-key wordstar-mode-map "\C-v" 'overwrite-mode)
  65   (define-key wordstar-mode-map "\C-w" 'scroll-down-line)
  66   (define-key wordstar-mode-map "\C-x" 'next-line)
  67   (define-key wordstar-mode-map "\C-y" 'kill-complete-line)
  68   (define-key wordstar-mode-map "\C-z" 'scroll-up-line)
  69
  70   ;; wordstar-C-k-map
  71
  72   (define-key wordstar-C-k-map " " ())
  73   (define-key wordstar-C-k-map "0" 'ws-set-marker-0)
  74   (define-key wordstar-C-k-map "1" 'ws-set-marker-1)
  75   (define-key wordstar-C-k-map "2" 'ws-set-marker-2)
  76   (define-key wordstar-C-k-map "3" 'ws-set-marker-3)
  77   (define-key wordstar-C-k-map "4" 'ws-set-marker-4)
  78   (define-key wordstar-C-k-map "5" 'ws-set-marker-5)
  79   (define-key wordstar-C-k-map "6" 'ws-set-marker-6)
  80   (define-key wordstar-C-k-map "7" 'ws-set-marker-7)
  81   (define-key wordstar-C-k-map "8" 'ws-set-marker-8)
  82   (define-key wordstar-C-k-map "9" 'ws-set-marker-9)
  83   (define-key wordstar-C-k-map "b" 'ws-begin-block)
  84   (define-key wordstar-C-k-map "\C-b" 'ws-begin-block)
  85   (define-key wordstar-C-k-map "c" 'ws-copy-block)
  86   (define-key wordstar-C-k-map "\C-c" 'ws-copy-block)
  87   (define-key wordstar-C-k-map "d" 'save-buffers-kill-emacs)
  88   (define-key wordstar-C-k-map "\C-d" 'save-buffers-kill-emacs)
  89   (define-key wordstar-C-k-map "f" 'find-file)
  90   (define-key wordstar-C-k-map "\C-f" 'find-file)
  91   (define-key wordstar-C-k-map "h" 'ws-show-markers)
  92   (define-key wordstar-C-k-map "\C-h" 'ws-show-markers)
  93   (define-key wordstar-C-k-map "i" 'ws-indent-block)
  94   (define-key wordstar-C-k-map "\C-i" 'ws-indent-block)
  95   (define-key wordstar-C-k-map "k" 'ws-end-block)
  96   (define-key wordstar-C-k-map "\C-k" 'ws-end-block)
  97   (define-key wordstar-C-k-map "p" 'ws-print-block)
  98   (define-key wordstar-C-k-map "\C-p" 'ws-print-block)
  99   (define-key wordstar-C-k-map "q" 'kill-emacs)
 100   (define-key wordstar-C-k-map "\C-q" 'kill-emacs)
 101   (define-key wordstar-C-k-map "r" 'insert-file)
 102   (define-key wordstar-C-k-map "\C-r" 'insert-file)
 103   (define-key wordstar-C-k-map "s" 'save-some-buffers)
 104   (define-key wordstar-C-k-map "\C-s" 'save-some-buffers)
 105   (define-key wordstar-C-k-map "t" 'ws-mark-word)
 106   (define-key wordstar-C-k-map "\C-t" 'ws-mark-word)
 107   (define-key wordstar-C-k-map "u" 'ws-exdent-block)
 108   (define-key wordstar-C-k-map "\C-u" 'keyboard-quit)
 109   (define-key wordstar-C-k-map "v" 'ws-move-block)
 110   (define-key wordstar-C-k-map "\C-v" 'ws-move-block)
 111   (define-key wordstar-C-k-map "w" 'ws-write-block)
 112   (define-key wordstar-C-k-map "\C-w" 'ws-write-block)
 113   (define-key wordstar-C-k-map "x" 'save-buffers-kill-emacs)
 114   (define-key wordstar-C-k-map "\C-x" 'save-buffers-kill-emacs)
 115   (define-key wordstar-C-k-map "y" 'ws-delete-block)
 116   (define-key wordstar-C-k-map "\C-y" 'ws-delete-block)
 117
 118   ;; wordstar-C-j-map not yet implemented
 119
 120   ;; wordstar-C-o-map
 121
 122   (define-key wordstar-C-o-map " " ())
 123   (define-key wordstar-C-o-map "c" 'center-line)
 124   (define-key wordstar-C-o-map "\C-c" 'center-line)
 125   (define-key wordstar-C-o-map "b" 'switch-to-buffer)
 126   (define-key wordstar-C-o-map "\C-b" 'switch-to-buffer)
 127   (define-key wordstar-C-o-map "j" 'justify-current-line)
 128   (define-key wordstar-C-o-map "\C-j" 'justify-current-line)
 129   (define-key wordstar-C-o-map "k" 'kill-buffer)
 130   (define-key wordstar-C-o-map "\C-k" 'kill-buffer)
 131   (define-key wordstar-C-o-map "l" 'list-buffers)
 132   (define-key wordstar-C-o-map "\C-l" 'list-buffers)
 133   (define-key wordstar-C-o-map "m" 'auto-fill-mode)
 134   (define-key wordstar-C-o-map "\C-m" 'auto-fill-mode)
 135   (define-key wordstar-C-o-map "r" 'set-fill-column)
 136   (define-key wordstar-C-o-map "\C-r" 'set-fill-column)
 137   (define-key wordstar-C-o-map "\C-u" 'keyboard-quit)
 138   (define-key wordstar-C-o-map "wd" 'delete-other-windows)
 139   (define-key wordstar-C-o-map "wh" 'split-window-horizontally)
 140   (define-key wordstar-C-o-map "wo" 'other-window)
 141   (define-key wordstar-C-o-map "wv" 'split-window-vertically)
 142
 143   ;; wordstar-C-q-map
 144   (define-key wordstar-C-q-map " " ())
 145   (define-key wordstar-C-q-map "0" 'ws-find-marker-0)
 146   (define-key wordstar-C-q-map "1" 'ws-find-marker-1)
 147   (define-key wordstar-C-q-map "2" 'ws-find-marker-2)
 148   (define-key wordstar-C-q-map "3" 'ws-find-marker-3)
 149   (define-key wordstar-C-q-map "4" 'ws-find-marker-4)
 150   (define-key wordstar-C-q-map "5" 'ws-find-marker-5)
 151   (define-key wordstar-C-q-map "6" 'ws-find-marker-6)
 152   (define-key wordstar-C-q-map "7" 'ws-find-marker-7)
 153   (define-key wordstar-C-q-map "8" 'ws-find-marker-8)
 154   (define-key wordstar-C-q-map "9" 'ws-find-marker-9)
 155   (define-key wordstar-C-q-map "a" 'ws-query-replace)
 156   (define-key wordstar-C-q-map "\C-a" 'ws-query-replace)
 157   (define-key wordstar-C-q-map "b" 'ws-goto-block-begin)
 158   (define-key wordstar-C-q-map "\C-b" 'ws-goto-block-begin)
 159   (define-key wordstar-C-q-map "c" 'end-of-buffer)
 160   (define-key wordstar-C-q-map "\C-c" 'end-of-buffer)
 161   (define-key wordstar-C-q-map "d" 'end-of-line)
 162   (define-key wordstar-C-q-map "\C-d" 'end-of-line)
 163   (define-key wordstar-C-q-map "f" 'ws-search)
 164   (define-key wordstar-C-q-map "\C-f" 'ws-search)
 165   (define-key wordstar-C-q-map "k" 'ws-goto-block-end)
 166   (define-key wordstar-C-q-map "\C-k" 'ws-goto-block-end)
 167   (define-key wordstar-C-q-map "l" 'ws-undo)
 168   (define-key wordstar-C-q-map "\C-l" 'ws-undo)
 169   (define-key wordstar-C-q-map "p" 'ws-last-cursorp)
 170   (define-key wordstar-C-q-map "\C-p" 'ws-last-cursorp)
 171   (define-key wordstar-C-q-map "r" 'beginning-of-buffer)
 172   (define-key wordstar-C-q-map "\C-r" 'beginning-of-buffer)
 173   (define-key wordstar-C-q-map "s" 'beginning-of-line)
 174   (define-key wordstar-C-q-map "\C-s" 'beginning-of-line)
 175   (define-key wordstar-C-q-map "\C-u" 'keyboard-quit)
 176   (define-key wordstar-C-q-map "w" 'ws-last-error)
 177   (define-key wordstar-C-q-map "\C-w" 'ws-last-error)
 178   (define-key wordstar-C-q-map "y" 'ws-kill-eol)
 179   (define-key wordstar-C-q-map "\C-y" 'ws-kill-eol)
 180   (define-key wordstar-C-q-map "\177" 'ws-kill-bol))
 181
 182 (defun wordstar-mode ()
 183   "Major mode with WordStar-like key bindings.
 184
 185 BUGS:
 186  - Help menus with WordStar commands (C-j just calls help-for-help)
 187    are not implemented
 188  - Options for search and replace
 189  - Show markers (C-k h) is somewhat strange
 190  - Search and replace (C-q a) is only available in forward direction
 191
 192 No key bindings beginning with ESC are installed, they will work
 193 Emacs-like.
 194
 195 The key bindings are:
 196
 197   C-a           backward-word
 198   C-b           fill-paragraph
 199   C-c           scroll-up-line
 200   C-d           forward-char
 201   C-e           previous-line
 202   C-f           forward-word
 203   C-g           delete-char
 204   C-h           backward-char
 205   C-i           indent-for-tab-command
 206   C-j           help-for-help
 207   C-k           ordstar-C-k-map
 208   C-l           ws-repeat-search
 209   C-n           open-line
 210   C-p           quoted-insert
 211   C-r           scroll-down-line
 212   C-s           backward-char
 213   C-t           kill-word
 214   C-u           keyboard-quit
 215   C-v           overwrite-mode
 216   C-w           scroll-down
 217   C-x           next-line
 218   C-y           kill-complete-line
 219   C-z           scroll-up
 220
 221   C-k 0         ws-set-marker-0
 222   C-k 1         ws-set-marker-1
 223   C-k 2         ws-set-marker-2
 224   C-k 3         ws-set-marker-3
 225   C-k 4         ws-set-marker-4
 226   C-k 5         ws-set-marker-5
 227   C-k 6         ws-set-marker-6
 228   C-k 7         ws-set-marker-7
 229   C-k 8         ws-set-marker-8
 230   C-k 9         ws-set-marker-9
 231   C-k b         ws-begin-block
 232   C-k c         ws-copy-block
 233   C-k d         save-buffers-kill-emacs
 234   C-k f         find-file
 235   C-k h         ws-show-markers
 236   C-k i         ws-indent-block
 237   C-k k         ws-end-block
 238   C-k p         ws-print-block
 239   C-k q         kill-emacs
 240   C-k r         insert-file
 241   C-k s         save-some-buffers
 242   C-k t         ws-mark-word
 243   C-k u         ws-exdent-block
 244   C-k C-u       keyboard-quit
 245   C-k v         ws-move-block
 246   C-k w         ws-write-block
 247   C-k x         kill-emacs
 248   C-k y         ws-delete-block
 249
 250   C-o c         center-line
 251   C-o b         switch-to-buffer
 252   C-o j         justify-current-line
 253   C-o k         kill-buffer
 254   C-o l         list-buffers
 255   C-o m         auto-fill-mode
 256   C-o r         set-fill-column
 257   C-o C-u       keyboard-quit
 258   C-o wd        delete-other-windows
 259   C-o wh        split-window-horizontally
 260   C-o wo        other-window
 261   C-o wv        split-window-vertically
 262
 263   C-q 0         ws-find-marker-0
 264   C-q 1         ws-find-marker-1
 265   C-q 2         ws-find-marker-2
 266   C-q 3         ws-find-marker-3
 267   C-q 4         ws-find-marker-4
 268   C-q 5         ws-find-marker-5
 269   C-q 6         ws-find-marker-6
 270   C-q 7         ws-find-marker-7
 271   C-q 8         ws-find-marker-8
 272   C-q 9         ws-find-marker-9
 273   C-q a         ws-query-replace
 274   C-q b         ws-to-block-begin
 275   C-q c         end-of-buffer
 276   C-q d         end-of-line
 277   C-q f         ws-search
 278   C-q k         ws-to-block-end
 279   C-q l         ws-undo
 280   C-q p         ws-last-cursorp
 281   C-q r         beginning-of-buffer
 282   C-q C-u       keyboard-quit
 283   C-q w         ws-last-error
 284   C-q y         ws-kill-eol
 285   C-q DEL       ws-kill-bol
 286 "
 287   (interactive)
 288   (kill-all-local-variables)
 289   (use-local-map wordstar-mode-map)
 290   (setq mode-name "WordStar")
 291   (setq major-mode 'wordstar-mode))
 292
 293
 294 (defun center-paragraph ()
 295   "Center each line in the paragraph at or after point.
 296 See center-line for more info."
 297   (interactive)
 298   (save-excursion
 299     (forward-paragraph)
 300     (or (bolp) (newline 1))
 301     (let ((end (point)))
 302       (backward-paragraph)
 303       (center-region (point) end))))
 304
 305 (defun center-region (from to)
 306   "Center each line starting in the region.
 307 See center-line for more info."
 308   (interactive "r")
 309   (if (> from to)
 310       (let ((tem to))
 311         (setq to from from tem)))
 312   (save-excursion
 313     (save-restriction
 314       (narrow-to-region from to)
 315       (goto-char from)
 316       (while (not (eobp))
 317         (center-line)
 318         (forward-line 1)))))
 319
 320 (defun center-line ()
 321   "Center the line point is on, within the width specified by `fill-column'.
 322 This means adjusting the indentation to match
 323 the distance between the end of the text and `fill-column'."
 324   (interactive)
 325   (save-excursion
 326     (let (line-length)
 327       (beginning-of-line)
 328       (delete-horizontal-space)
 329       (end-of-line)
 330       (delete-horizontal-space)
 331       (setq line-length (current-column))
 332       (beginning-of-line)
 333       (indent-to
 334        (+ left-margin
 335           (/ (- fill-column left-margin line-length) 2))))))
 336
 337 (defun scroll-down-line ()
 338   "Scroll one line down."
 339   (interactive)
 340   (scroll-down 1))
 341
 342 (defun scroll-up-line ()
 343   "Scroll one line up."
 344   (interactive)
 345   (scroll-up 1))
 346
 347 ;;;;;;;;;;;
 348 ;; wordstar special variables:
 349
 350 (defvar ws-marker-0 nil "Position marker 0 in WordStar mode.")
 351 (defvar ws-marker-1 nil "Position marker 1 in WordStar mode.")
 352 (defvar ws-marker-2 nil "Position marker 2 in WordStar mode.")
 353 (defvar ws-marker-3 nil "Position marker 3 in WordStar mode.")
 354 (defvar ws-marker-4 nil "Position marker 4 in WordStar mode.")
 355 (defvar ws-marker-5 nil "Position marker 5 in WordStar mode.")
 356 (defvar ws-marker-6 nil "Position marker 6 in WordStar mode.")
 357 (defvar ws-marker-7 nil "Position marker 7 in WordStar mode.")
 358 (defvar ws-marker-8 nil "Position marker 8 in WordStar mode.")
 359 (defvar ws-marker-9 nil "Position marker 9 in WordStar mode.")
 360
 361 (defvar ws-block-begin-marker nil "Beginning of \"Block\" in WordStar mode.")
 362 (defvar ws-block-end-marker nil "End of \"Block\" in WordStar mode.")
 363
 364 (defvar ws-search-string nil "String of last search in WordStar mode.")
 365 (defvar ws-search-direction t
 366   "Direction of last search in WordStar mode. T if forward, NIL if backward.")
 367
 368 (defvar ws-last-cursorposition nil
 369   "Position before last search etc. in WordStar mode.")
 370
 371 (defvar ws-last-errormessage nil
 372   "Last error message issued by a WordStar mode function.")
 373
 374 ;;;;;;;;;;;
 375 ;; wordstar special functions:
 376
 377 (defun ws-error (string)
 378   "Report error of a WordStar special function. Error message is saved
 379 in ws-last-errormessage for recovery with C-q w."
 380   (setq ws-last-errormessage string)
 381   (error string))
 382
 383 (defun ws-set-marker-0 ()
 384   "In WordStar mode: Set marker 0 to current cursor position."
 385   (interactive)
 386   (setq ws-marker-0 (point-marker))
 387   (message "Marker 0 set"))
 388
 389 (defun ws-set-marker-1 ()
 390   "In WordStar mode: Set marker 1 to current cursor position."
 391   (interactive)
 392   (setq ws-marker-1 (point-marker))
 393   (message "Marker 1 set"))
 394
 395 (defun ws-set-marker-2 ()
 396   "In WordStar mode: Set marker 2 to current cursor position."
 397   (interactive)
 398   (setq ws-marker-2 (point-marker))
 399   (message "Marker 2 set"))
 400
 401 (defun ws-set-marker-3 ()
 402   "In WordStar mode: Set marker 3 to current cursor position."
 403   (interactive)
 404   (setq ws-marker-3 (point-marker))
 405   (message "Marker 3 set"))
 406
 407 (defun ws-set-marker-4 ()
 408   "In WordStar mode: Set marker 4 to current cursor position."
 409   (interactive)
 410   (setq ws-marker-4 (point-marker))
 411   (message "Marker 4 set"))
 412
 413 (defun ws-set-marker-5 ()
 414   "In WordStar mode: Set marker 5 to current cursor position."
 415   (interactive)
 416   (setq ws-marker-5 (point-marker))
 417   (message "Marker 5 set"))
 418
 419 (defun ws-set-marker-6 ()
 420   "In WordStar mode: Set marker 6 to current cursor position."
 421   (interactive)
 422   (setq ws-marker-6 (point-marker))
 423   (message "Marker 6 set"))
 424
 425 (defun ws-set-marker-7 ()
 426   "In WordStar mode: Set marker 7 to current cursor position."
 427   (interactive)
 428   (setq ws-marker-7 (point-marker))
 429   (message "Marker 7 set"))
 430
 431 (defun ws-set-marker-8 ()
 432   "In WordStar mode: Set marker 8 to current cursor position."
 433   (interactive)
 434   (setq ws-marker-8 (point-marker))
 435   (message "Marker 8 set"))
 436
 437 (defun ws-set-marker-9 ()
 438   "In WordStar mode: Set marker 9 to current cursor position."
 439   (interactive)
 440   (setq ws-marker-9 (point-marker))
 441   (message "Marker 9 set"))
 442
 443 (defun ws-begin-block ()
 444   "In WordStar mode: Set block begin marker to current cursor position."
 445   (interactive)
 446   (setq ws-block-begin-marker (point-marker))
 447   (message "Block begin marker set"))
 448
 449 (defun ws-show-markers ()
 450   "In WordStar mode: Show block markers."
 451   (interactive)
 452   (if (or ws-block-begin-marker ws-block-end-marker)
 453       (save-excursion
 454         (if ws-block-begin-marker
 455             (let ()
 456               (goto-char ws-block-begin-marker)
 457               (message "Block begin marker")
 458               (sit-for 2))
 459           (message "Block begin marker not set")
 460           (sit-for 2))
 461         (if ws-block-end-marker
 462             (let ()
 463               (goto-char ws-block-end-marker)
 464               (message "Block end marker")
 465               (sit-for 2))
 466           (message "Block end marker not set"))
 467         (message ""))
 468     (message "Block markers not set")))
 469
 470
 471 (defun ws-indent-block ()
 472   "In WordStar mode: Indent block (not yet implemeted)."
 473   (interactive)
 474   (ws-error "Indent block not yet implemented"))
 475
 476 (defun ws-end-block ()
 477   "In WordStar mode: Set block end marker to current cursor position."
 478   (interactive)
 479   (setq ws-block-end-marker (point-marker))
 480   (message "Block end marker set"))
 481
 482 (defun ws-print-block ()
 483   "In WordStar mode: Print block."
 484   (interactive)
 485   (message "Don't do this. Write block to a file (C-k w) and print this file."))
 486
 487 (defun ws-mark-word ()
 488   "In WordStar mode: Mark current word as block."
 489   (interactive)
 490   (save-excursion
 491     (forward-word 1)
 492     (sit-for 1)
 493     (ws-end-block)
 494     (forward-word -1)
 495     (sit-for 1)
 496     (ws-begin-block)))
 497
 498 (defun ws-exdent-block ()
 499   "I don't know what this (C-k u) should do."
 500   (interactive)
 501   (ws-error "This won't be done -- not yet implemented."))
 502
 503 (defun ws-move-block ()
 504   "In WordStar mode: Move block to current cursor position."
 505   (interactive)
 506   (if (and ws-block-begin-marker ws-block-end-marker)
 507       (let ()
 508         (kill-region ws-block-begin-marker ws-block-end-marker)
 509         (yank)
 510         (save-excursion
 511           (goto-char (region-beginning))
 512           (setq ws-block-begin-marker (point-marker))
 513           (goto-char (region-end))
 514           (setq ws-block-end-marker (point-marker))))
 515     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 516                     (ws-block-end-marker "Block begin marker not set")
 517                     (t "Block markers not set")))))
 518
 519 (defun ws-write-block ()
 520   "In WordStar mode: Write block to file."
 521   (interactive)
 522   (if (and ws-block-begin-marker ws-block-end-marker)
 523       (let ((filename (read-file-name "Write block to file: ")))
 524         (write-region ws-block-begin-marker ws-block-end-marker filename))
 525     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 526                     (ws-block-end-marker "Block begin marker not set")
 527                     (t "Block markers not set")))))
 528
 529
 530 (defun ws-delete-block ()
 531   "In WordStar mode: Delete block."
 532   (interactive)
 533   (if (and ws-block-begin-marker ws-block-end-marker)
 534       (let ()
 535         (kill-region ws-block-begin-marker ws-block-end-marker)
 536         (setq ws-block-end-marker nil)
 537         (setq ws-block-begin-marker nil))
 538     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 539                     (ws-block-end-marker "Block begin marker not set")
 540                     (t "Block markers not set")))))
 541
 542 (defun ws-find-marker-0 ()
 543   "In WordStar mode: Go to marker 0."
 544   (interactive)
 545   (if ws-marker-0
 546       (let ()
 547         (setq ws-last-cursorposition (point-marker))
 548         (goto-char ws-marker-0))
 549     (ws-error "Marker 0 not set")))
 550
 551 (defun ws-find-marker-1 ()
 552   "In WordStar mode: Go to marker 1."
 553   (interactive)
 554   (if ws-marker-1
 555       (let ()
 556         (setq ws-last-cursorposition (point-marker))
 557         (goto-char ws-marker-1))
 558     (ws-error "Marker 1 not set")))
 559
 560 (defun ws-find-marker-2 ()
 561   "In WordStar mode: Go to marker 2."
 562   (interactive)
 563   (if ws-marker-2
 564       (let ()
 565         (setq ws-last-cursorposition (point-marker))
 566         (goto-char ws-marker-2))
 567     (ws-error "Marker 2 not set")))
 568
 569 (defun ws-find-marker-3 ()
 570   "In WordStar mode: Go to marker 3."
 571   (interactive)
 572   (if ws-marker-3
 573       (let ()
 574         (setq ws-last-cursorposition (point-marker))
 575         (goto-char ws-marker-3))
 576     (ws-error "Marker 3 not set")))
 577
 578 (defun ws-find-marker-4 ()
 579   "In WordStar mode: Go to marker 4."
 580   (interactive)
 581   (if ws-marker-4
 582       (let ()
 583         (setq ws-last-cursorposition (point-marker))
 584         (goto-char ws-marker-4))
 585     (ws-error "Marker 4 not set")))
 586
 587 (defun ws-find-marker-5 ()
 588   "In WordStar mode: Go to marker 5."
 589   (interactive)
 590   (if ws-marker-5
 591       (let ()
 592         (setq ws-last-cursorposition (point-marker))
 593         (goto-char ws-marker-5))
 594     (ws-error "Marker 5 not set")))
 595
 596 (defun ws-find-marker-6 ()
 597   "In WordStar mode: Go to marker 6."
 598   (interactive)
 599   (if ws-marker-6
 600       (let ()
 601         (setq ws-last-cursorposition (point-marker))
 602         (goto-char ws-marker-6))
 603     (ws-error "Marker 6 not set")))
 604
 605 (defun ws-find-marker-7 ()
 606   "In WordStar mode: Go to marker 7."
 607   (interactive)
 608   (if ws-marker-7
 609       (let ()
 610         (setq ws-last-cursorposition (point-marker))
 611         (goto-char ws-marker-7))
 612     (ws-error "Marker 7 not set")))
 613
 614 (defun ws-find-marker-8 ()
 615   "In WordStar mode: Go to marker 8."
 616   (interactive)
 617   (if ws-marker-8
 618       (let ()
 619         (setq ws-last-cursorposition (point-marker))
 620         (goto-char ws-marker-8))
 621     (ws-error "Marker 8 not set")))
 622
 623 (defun ws-find-marker-9 ()
 624   "In WordStar mode: Go to marker 9."
 625   (interactive)
 626   (if ws-marker-9
 627       (let ()
 628         (setq ws-last-cursorposition (point-marker))
 629         (goto-char ws-marker-9))
 630     (ws-error "Marker 9 not set")))
 631
 632 (defun ws-goto-block-begin ()
 633   "In WordStar mode: Go to block begin marker."
 634   (interactive)
 635   (if ws-block-begin-marker
 636       (let ()
 637         (setq ws-last-cursorposition (point-marker))
 638         (goto-char ws-block-begin-marker))
 639     (ws-error "Block begin marker not set")))
 640
 641 (defun ws-search (string)
 642   "In WordStar mode: Search string, remember string for repetition."
 643   (interactive "sSearch for: ")
 644   (message "Forward (f) or backward (b)")
 645   (let ((direction
 646          (read-char)))
 647     (cond ((equal (upcase direction) \070)
 648            (setq ws-search-string string)
 649            (setq ws-search-direction t)
 650            (setq ws-last-cursorposition (point-marker))
 651            (search-forward string))
 652           ((equal (upcase direction) \066)
 653            (setq ws-search-string string)
 654            (setq ws-search-direction nil)
 655            (setq ws-last-cursorposition (point-marker))
 656            (search-backward string))
 657           (t (keyboard-quit)))))
 658
 659 (defun ws-goto-block-end ()
 660   "In WordStar mode: Go to block end marker."
 661   (interactive)
 662   (if ws-block-end-marker
 663       (let ()
 664         (setq ws-last-cursorposition (point-marker))
 665         (goto-char ws-block-end-marker))
 666     (ws-error "Block end marker not set")))
 667
 668 (defun ws-undo ()
 669   "In WordStar mode: Undo and give message about undoing more changes."
 670   (interactive)
 671   (undo)
 672   (message "Repeat C-q l to undo more changes."))
 673
 674 (defun ws-goto-last-cursorposition ()
 675   "In WordStar mode: "
 676   (interactive)
 677   (if ws-last-cursorposition
 678       (let ()
 679         (setq ws-last-cursorposition (point-marker))
 680         (goto-char ws-last-cursorposition))
 681     (ws-error "No last cursor position available.")))
 682
 683 (defun ws-last-error ()
 684   "In WordStar mode: repeat last error message.
 685 This will only work for errors raised by WordStar mode functions."
 686   (interactive)
 687   (if ws-last-errormessage
 688       (message ws-last-errormessage)
 689     (message "No WordStar error yet.")))
 690
 691 (defun ws-kill-eol ()
 692   "In WordStar mode: Kill to end of line (like WordStar, not like Emacs)."
 693   (interactive)
 694   (let ((p (point)))
 695     (end-of-line)
 696     (kill-region p (point))))
 697
 698 (defun ws-kill-bol ()
 699   "In WordStar mode: Kill to beginning of line
 700 (like WordStar, not like Emacs)."
 701   (interactive)
 702   (let ((p (point)))
 703     (beginning-of-line)
 704     (kill-region (point) p)))
 705
 706 (defun kill-complete-line ()
 707   "Kill the complete line."
 708   (interactive)
 709   (beginning-of-line)
 710   (if (eobp) (error "End of buffer"))
 711   (let ((beg (point)))
 712     (forward-line 1)
 713     (kill-region beg (point))))
 714
 715 (defun ws-repeat-search ()
 716   "In WordStar mode: Repeat last search."
 717   (interactive)
 718   (setq ws-last-cursorposition (point-marker))
 719   (if ws-search-string
 720       (if ws-search-direction
 721           (search-forward ws-search-string)
 722         (search-backward ws-search-string))
 723     (ws-error "No search to repeat")))
 724
 725 (defun ws-query-replace (from to)
 726   "In WordStar mode: Search string, remember string for repetition."
 727   (interactive "sReplace:
 728 sWith: " )
 729   (setq ws-search-string from)
 730   (setq ws-search-direction t)
 731   (setq ws-last-cursorposition (point-marker))
 732   (query-replace from to))
 733
 734 (defun ws-copy-block ()
 735   "In WordStar mode: Copy block to current cursor position."
 736   (interactive)
 737   (if (and ws-block-begin-marker ws-block-end-marker)
 738       (let ()
 739         (copy-region-as-kill ws-block-begin-marker ws-block-end-marker)
 740         (yank)
 741         (save-excursion
 742           (goto-char (region-beginning))
 743           (setq ws-block-begin-marker (point-marker))
 744           (goto-char (region-end))
 745           (setq ws-block-end-marker (point-marker))))
 746     (ws-error (cond (ws-block-begin-marker "Block end marker not set")
 747                     (ws-block-end-marker "Block begin marker not set")
 748                     (t "Block markers not set")))))
 749
 750 ;;; ws-mode.el ends here