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emacs/lisp/emulation/ws-mode.el
Glenn Morris 8b72699e88 Add 2008 to copyright years.
2008-01-07 01:14:52 +00:00

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;;; ws-mode.el --- WordStar emulation mode for GNU Emacs
;; Copyright (C) 1991, 2001, 2002, 2003, 2004, 2005,
;; 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Juergen Nickelsen <nickel@cs.tu-berlin.de>
;; Version: 0.7
;; Keywords: emulations
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This emulates WordStar, with a major mode.
;;; Code:
(defvar wordstar-mode-map nil "")
(defvar wordstar-C-j-map nil "")
(defvar wordstar-C-k-map nil "")
(defvar wordstar-C-o-map nil "")
(defvar wordstar-C-q-map nil "")
(if wordstar-mode-map
()
(setq wordstar-mode-map (make-keymap))
;; (setq wordstar-C-j-map (make-keymap)) ; later, perhaps
(setq wordstar-C-k-map (make-keymap))
(setq wordstar-C-o-map (make-keymap))
(setq wordstar-C-q-map (make-keymap))
(define-key wordstar-mode-map "\C-a" 'backward-word)
(define-key wordstar-mode-map "\C-b" 'fill-paragraph)
(define-key wordstar-mode-map "\C-c" 'scroll-up)
(define-key wordstar-mode-map "\C-d" 'forward-char)
(define-key wordstar-mode-map "\C-e" 'previous-line)
(define-key wordstar-mode-map "\C-f" 'forward-word)
(define-key wordstar-mode-map "\C-g" 'delete-char)
(define-key wordstar-mode-map "\C-h" 'backward-char)
(define-key wordstar-mode-map "\C-i" 'indent-for-tab-command)
(define-key wordstar-mode-map "\C-j" 'help-for-help)
(define-key wordstar-mode-map "\C-k" wordstar-C-k-map)
(define-key wordstar-mode-map "\C-l" 'ws-repeat-search)
(define-key wordstar-mode-map "\C-n" 'open-line)
(define-key wordstar-mode-map "\C-o" wordstar-C-o-map)
(define-key wordstar-mode-map "\C-p" 'quoted-insert)
(define-key wordstar-mode-map "\C-q" wordstar-C-q-map)
(define-key wordstar-mode-map "\C-r" 'scroll-down)
(define-key wordstar-mode-map "\C-s" 'backward-char)
(define-key wordstar-mode-map "\C-t" 'kill-word)
(define-key wordstar-mode-map "\C-u" 'keyboard-quit)
(define-key wordstar-mode-map "\C-v" 'overwrite-mode)
(define-key wordstar-mode-map "\C-w" 'scroll-down-line)
(define-key wordstar-mode-map "\C-x" 'next-line)
(define-key wordstar-mode-map "\C-y" 'kill-complete-line)
(define-key wordstar-mode-map "\C-z" 'scroll-up-line)
;; wordstar-C-k-map
(define-key wordstar-C-k-map " " ())
(define-key wordstar-C-k-map "0" 'ws-set-marker-0)
(define-key wordstar-C-k-map "1" 'ws-set-marker-1)
(define-key wordstar-C-k-map "2" 'ws-set-marker-2)
(define-key wordstar-C-k-map "3" 'ws-set-marker-3)
(define-key wordstar-C-k-map "4" 'ws-set-marker-4)
(define-key wordstar-C-k-map "5" 'ws-set-marker-5)
(define-key wordstar-C-k-map "6" 'ws-set-marker-6)
(define-key wordstar-C-k-map "7" 'ws-set-marker-7)
(define-key wordstar-C-k-map "8" 'ws-set-marker-8)
(define-key wordstar-C-k-map "9" 'ws-set-marker-9)
(define-key wordstar-C-k-map "b" 'ws-begin-block)
(define-key wordstar-C-k-map "\C-b" 'ws-begin-block)
(define-key wordstar-C-k-map "c" 'ws-copy-block)
(define-key wordstar-C-k-map "\C-c" 'ws-copy-block)
(define-key wordstar-C-k-map "d" 'save-buffers-kill-emacs)
(define-key wordstar-C-k-map "\C-d" 'save-buffers-kill-emacs)
(define-key wordstar-C-k-map "f" 'find-file)
(define-key wordstar-C-k-map "\C-f" 'find-file)
(define-key wordstar-C-k-map "h" 'ws-show-markers)
(define-key wordstar-C-k-map "\C-h" 'ws-show-markers)
(define-key wordstar-C-k-map "i" 'ws-indent-block)
(define-key wordstar-C-k-map "\C-i" 'ws-indent-block)
(define-key wordstar-C-k-map "k" 'ws-end-block)
(define-key wordstar-C-k-map "\C-k" 'ws-end-block)
(define-key wordstar-C-k-map "p" 'ws-print-block)
(define-key wordstar-C-k-map "\C-p" 'ws-print-block)
(define-key wordstar-C-k-map "q" 'kill-emacs)
(define-key wordstar-C-k-map "\C-q" 'kill-emacs)
(define-key wordstar-C-k-map "r" 'insert-file)
(define-key wordstar-C-k-map "\C-r" 'insert-file)
(define-key wordstar-C-k-map "s" 'save-some-buffers)
(define-key wordstar-C-k-map "\C-s" 'save-some-buffers)
(define-key wordstar-C-k-map "t" 'ws-mark-word)
(define-key wordstar-C-k-map "\C-t" 'ws-mark-word)
(define-key wordstar-C-k-map "u" 'ws-exdent-block)
(define-key wordstar-C-k-map "\C-u" 'keyboard-quit)
(define-key wordstar-C-k-map "v" 'ws-move-block)
(define-key wordstar-C-k-map "\C-v" 'ws-move-block)
(define-key wordstar-C-k-map "w" 'ws-write-block)
(define-key wordstar-C-k-map "\C-w" 'ws-write-block)
(define-key wordstar-C-k-map "x" 'save-buffers-kill-emacs)
(define-key wordstar-C-k-map "\C-x" 'save-buffers-kill-emacs)
(define-key wordstar-C-k-map "y" 'ws-delete-block)
(define-key wordstar-C-k-map "\C-y" 'ws-delete-block)
;; wordstar-C-j-map not yet implemented
;; wordstar-C-o-map
(define-key wordstar-C-o-map " " ())
(define-key wordstar-C-o-map "c" 'wordstar-center-line)
(define-key wordstar-C-o-map "\C-c" 'wordstar-center-line)
(define-key wordstar-C-o-map "b" 'switch-to-buffer)
(define-key wordstar-C-o-map "\C-b" 'switch-to-buffer)
(define-key wordstar-C-o-map "j" 'justify-current-line)
(define-key wordstar-C-o-map "\C-j" 'justify-current-line)
(define-key wordstar-C-o-map "k" 'kill-buffer)
(define-key wordstar-C-o-map "\C-k" 'kill-buffer)
(define-key wordstar-C-o-map "l" 'list-buffers)
(define-key wordstar-C-o-map "\C-l" 'list-buffers)
(define-key wordstar-C-o-map "m" 'auto-fill-mode)
(define-key wordstar-C-o-map "\C-m" 'auto-fill-mode)
(define-key wordstar-C-o-map "r" 'set-fill-column)
(define-key wordstar-C-o-map "\C-r" 'set-fill-column)
(define-key wordstar-C-o-map "\C-u" 'keyboard-quit)
(define-key wordstar-C-o-map "wd" 'delete-other-windows)
(define-key wordstar-C-o-map "wh" 'split-window-horizontally)
(define-key wordstar-C-o-map "wo" 'other-window)
(define-key wordstar-C-o-map "wv" 'split-window-vertically)
;; wordstar-C-q-map
(define-key wordstar-C-q-map " " ())
(define-key wordstar-C-q-map "0" 'ws-find-marker-0)
(define-key wordstar-C-q-map "1" 'ws-find-marker-1)
(define-key wordstar-C-q-map "2" 'ws-find-marker-2)
(define-key wordstar-C-q-map "3" 'ws-find-marker-3)
(define-key wordstar-C-q-map "4" 'ws-find-marker-4)
(define-key wordstar-C-q-map "5" 'ws-find-marker-5)
(define-key wordstar-C-q-map "6" 'ws-find-marker-6)
(define-key wordstar-C-q-map "7" 'ws-find-marker-7)
(define-key wordstar-C-q-map "8" 'ws-find-marker-8)
(define-key wordstar-C-q-map "9" 'ws-find-marker-9)
(define-key wordstar-C-q-map "a" 'ws-query-replace)
(define-key wordstar-C-q-map "\C-a" 'ws-query-replace)
(define-key wordstar-C-q-map "b" 'ws-goto-block-begin)
(define-key wordstar-C-q-map "\C-b" 'ws-goto-block-begin)
(define-key wordstar-C-q-map "c" 'end-of-buffer)
(define-key wordstar-C-q-map "\C-c" 'end-of-buffer)
(define-key wordstar-C-q-map "d" 'end-of-line)
(define-key wordstar-C-q-map "\C-d" 'end-of-line)
(define-key wordstar-C-q-map "f" 'ws-search)
(define-key wordstar-C-q-map "\C-f" 'ws-search)
(define-key wordstar-C-q-map "k" 'ws-goto-block-end)
(define-key wordstar-C-q-map "\C-k" 'ws-goto-block-end)
(define-key wordstar-C-q-map "l" 'ws-undo)
(define-key wordstar-C-q-map "\C-l" 'ws-undo)
(define-key wordstar-C-q-map "p" 'ws-last-cursorp)
(define-key wordstar-C-q-map "\C-p" 'ws-last-cursorp)
(define-key wordstar-C-q-map "r" 'beginning-of-buffer)
(define-key wordstar-C-q-map "\C-r" 'beginning-of-buffer)
(define-key wordstar-C-q-map "s" 'beginning-of-line)
(define-key wordstar-C-q-map "\C-s" 'beginning-of-line)
(define-key wordstar-C-q-map "\C-u" 'keyboard-quit)
(define-key wordstar-C-q-map "w" 'ws-last-error)
(define-key wordstar-C-q-map "\C-w" 'ws-last-error)
(define-key wordstar-C-q-map "y" 'ws-kill-eol)
(define-key wordstar-C-q-map "\C-y" 'ws-kill-eol)
(define-key wordstar-C-q-map "\177" 'ws-kill-bol))
(put 'wordstar-mode 'mode-class 'special)
;;;###autoload
(defun wordstar-mode ()
"Major mode with WordStar-like key bindings.
BUGS:
- Help menus with WordStar commands (C-j just calls help-for-help)
are not implemented
- Options for search and replace
- Show markers (C-k h) is somewhat strange
- Search and replace (C-q a) is only available in forward direction
No key bindings beginning with ESC are installed, they will work
Emacs-like.
The key bindings are:
C-a backward-word
C-b fill-paragraph
C-c scroll-up-line
C-d forward-char
C-e previous-line
C-f forward-word
C-g delete-char
C-h backward-char
C-i indent-for-tab-command
C-j help-for-help
C-k ordstar-C-k-map
C-l ws-repeat-search
C-n open-line
C-p quoted-insert
C-r scroll-down-line
C-s backward-char
C-t kill-word
C-u keyboard-quit
C-v overwrite-mode
C-w scroll-down
C-x next-line
C-y kill-complete-line
C-z scroll-up
C-k 0 ws-set-marker-0
C-k 1 ws-set-marker-1
C-k 2 ws-set-marker-2
C-k 3 ws-set-marker-3
C-k 4 ws-set-marker-4
C-k 5 ws-set-marker-5
C-k 6 ws-set-marker-6
C-k 7 ws-set-marker-7
C-k 8 ws-set-marker-8
C-k 9 ws-set-marker-9
C-k b ws-begin-block
C-k c ws-copy-block
C-k d save-buffers-kill-emacs
C-k f find-file
C-k h ws-show-markers
C-k i ws-indent-block
C-k k ws-end-block
C-k p ws-print-block
C-k q kill-emacs
C-k r insert-file
C-k s save-some-buffers
C-k t ws-mark-word
C-k u ws-exdent-block
C-k C-u keyboard-quit
C-k v ws-move-block
C-k w ws-write-block
C-k x kill-emacs
C-k y ws-delete-block
C-o c wordstar-center-line
C-o b switch-to-buffer
C-o j justify-current-line
C-o k kill-buffer
C-o l list-buffers
C-o m auto-fill-mode
C-o r set-fill-column
C-o C-u keyboard-quit
C-o wd delete-other-windows
C-o wh split-window-horizontally
C-o wo other-window
C-o wv split-window-vertically
C-q 0 ws-find-marker-0
C-q 1 ws-find-marker-1
C-q 2 ws-find-marker-2
C-q 3 ws-find-marker-3
C-q 4 ws-find-marker-4
C-q 5 ws-find-marker-5
C-q 6 ws-find-marker-6
C-q 7 ws-find-marker-7
C-q 8 ws-find-marker-8
C-q 9 ws-find-marker-9
C-q a ws-query-replace
C-q b ws-to-block-begin
C-q c end-of-buffer
C-q d end-of-line
C-q f ws-search
C-q k ws-to-block-end
C-q l ws-undo
C-q p ws-last-cursorp
C-q r beginning-of-buffer
C-q C-u keyboard-quit
C-q w ws-last-error
C-q y ws-kill-eol
C-q DEL ws-kill-bol
"
(interactive)
(kill-all-local-variables)
(use-local-map wordstar-mode-map)
(setq mode-name "WordStar")
(setq major-mode 'wordstar-mode)
(run-mode-hooks 'wordstar-mode-hook))
(defun wordstar-center-paragraph ()
"Center each line in the paragraph at or after point.
See `wordstar-center-line' for more info."
(interactive)
(save-excursion
(forward-paragraph)
(or (bolp) (newline 1))
(let ((end (point)))
(backward-paragraph)
(wordstar-center-region (point) end))))
(defun wordstar-center-region (from to)
"Center each line starting in the region.
See `wordstar-center-line' for more info."
(interactive "r")
(if (> from to)
(let ((tem to))
(setq to from from tem)))
(save-excursion
(save-restriction
(narrow-to-region from to)
(goto-char from)
(while (not (eobp))
(wordstar-center-line)
(forward-line 1)))))
(defun wordstar-center-line ()
"Center the line point is on, within the width specified by `fill-column'.
This means adjusting the indentation to match
the distance between the end of the text and `fill-column'."
(interactive)
(save-excursion
(let (line-length)
(beginning-of-line)
(delete-horizontal-space)
(end-of-line)
(delete-horizontal-space)
(setq line-length (current-column))
(beginning-of-line)
(indent-to
(+ left-margin
(/ (- fill-column left-margin line-length) 2))))))
(defun scroll-down-line ()
"Scroll one line down."
(interactive)
(scroll-down 1))
(defun scroll-up-line ()
"Scroll one line up."
(interactive)
(scroll-up 1))
;;;;;;;;;;;
;; wordstar special variables:
(defvar ws-marker-0 nil "Position marker 0 in WordStar mode.")
(defvar ws-marker-1 nil "Position marker 1 in WordStar mode.")
(defvar ws-marker-2 nil "Position marker 2 in WordStar mode.")
(defvar ws-marker-3 nil "Position marker 3 in WordStar mode.")
(defvar ws-marker-4 nil "Position marker 4 in WordStar mode.")
(defvar ws-marker-5 nil "Position marker 5 in WordStar mode.")
(defvar ws-marker-6 nil "Position marker 6 in WordStar mode.")
(defvar ws-marker-7 nil "Position marker 7 in WordStar mode.")
(defvar ws-marker-8 nil "Position marker 8 in WordStar mode.")
(defvar ws-marker-9 nil "Position marker 9 in WordStar mode.")
(defvar ws-block-begin-marker nil "Beginning of \"Block\" in WordStar mode.")
(defvar ws-block-end-marker nil "End of \"Block\" in WordStar mode.")
(defvar ws-search-string nil "String of last search in WordStar mode.")
(defvar ws-search-direction t
"Direction of last search in WordStar mode. t if forward, nil if backward.")
(defvar ws-last-cursorposition nil
"Position before last search etc. in WordStar mode.")
(defvar ws-last-errormessage nil
"Last error message issued by a WordStar mode function.")
;;;;;;;;;;;
;; wordstar special functions:
(defun ws-error (string)
"Report error of a WordStar special function. Error message is saved
in ws-last-errormessage for recovery with C-q w."
(setq ws-last-errormessage string)
(error string))
(defun ws-set-marker-0 ()
"In WordStar mode: Set marker 0 to current cursor position."
(interactive)
(setq ws-marker-0 (point-marker))
(message "Marker 0 set"))
(defun ws-set-marker-1 ()
"In WordStar mode: Set marker 1 to current cursor position."
(interactive)
(setq ws-marker-1 (point-marker))
(message "Marker 1 set"))
(defun ws-set-marker-2 ()
"In WordStar mode: Set marker 2 to current cursor position."
(interactive)
(setq ws-marker-2 (point-marker))
(message "Marker 2 set"))
(defun ws-set-marker-3 ()
"In WordStar mode: Set marker 3 to current cursor position."
(interactive)
(setq ws-marker-3 (point-marker))
(message "Marker 3 set"))
(defun ws-set-marker-4 ()
"In WordStar mode: Set marker 4 to current cursor position."
(interactive)
(setq ws-marker-4 (point-marker))
(message "Marker 4 set"))
(defun ws-set-marker-5 ()
"In WordStar mode: Set marker 5 to current cursor position."
(interactive)
(setq ws-marker-5 (point-marker))
(message "Marker 5 set"))
(defun ws-set-marker-6 ()
"In WordStar mode: Set marker 6 to current cursor position."
(interactive)
(setq ws-marker-6 (point-marker))
(message "Marker 6 set"))
(defun ws-set-marker-7 ()
"In WordStar mode: Set marker 7 to current cursor position."
(interactive)
(setq ws-marker-7 (point-marker))
(message "Marker 7 set"))
(defun ws-set-marker-8 ()
"In WordStar mode: Set marker 8 to current cursor position."
(interactive)
(setq ws-marker-8 (point-marker))
(message "Marker 8 set"))
(defun ws-set-marker-9 ()
"In WordStar mode: Set marker 9 to current cursor position."
(interactive)
(setq ws-marker-9 (point-marker))
(message "Marker 9 set"))
(defun ws-begin-block ()
"In WordStar mode: Set block begin marker to current cursor position."
(interactive)
(setq ws-block-begin-marker (point-marker))
(message "Block begin marker set"))
(defun ws-show-markers ()
"In WordStar mode: Show block markers."
(interactive)
(if (or ws-block-begin-marker ws-block-end-marker)
(save-excursion
(if ws-block-begin-marker
(let ()
(goto-char ws-block-begin-marker)
(message "Block begin marker")
(sit-for 2))
(message "Block begin marker not set")
(sit-for 2))
(if ws-block-end-marker
(let ()
(goto-char ws-block-end-marker)
(message "Block end marker")
(sit-for 2))
(message "Block end marker not set"))
(message ""))
(message "Block markers not set")))
(defun ws-indent-block ()
"In WordStar mode: Indent block (not yet implemented)."
(interactive)
(ws-error "Indent block not yet implemented"))
(defun ws-end-block ()
"In WordStar mode: Set block end marker to current cursor position."
(interactive)
(setq ws-block-end-marker (point-marker))
(message "Block end marker set"))
(defun ws-print-block ()
"In WordStar mode: Print block."
(interactive)
(message "Don't do this. Write block to a file (C-k w) and print this file."))
(defun ws-mark-word ()
"In WordStar mode: Mark current word as block."
(interactive)
(save-excursion
(forward-word 1)
(sit-for 1)
(ws-end-block)
(forward-word -1)
(sit-for 1)
(ws-begin-block)))
(defun ws-exdent-block ()
"I don't know what this (C-k u) should do."
(interactive)
(ws-error "This won't be done -- not yet implemented."))
(defun ws-move-block ()
"In WordStar mode: Move block to current cursor position."
(interactive)
(if (and ws-block-begin-marker ws-block-end-marker)
(let ()
(kill-region ws-block-begin-marker ws-block-end-marker)
(yank)
(save-excursion
(goto-char (region-beginning))
(setq ws-block-begin-marker (point-marker))
(goto-char (region-end))
(setq ws-block-end-marker (point-marker))))
(ws-error (cond (ws-block-begin-marker "Block end marker not set")
(ws-block-end-marker "Block begin marker not set")
(t "Block markers not set")))))
(defun ws-write-block ()
"In WordStar mode: Write block to file."
(interactive)
(if (and ws-block-begin-marker ws-block-end-marker)
(let ((filename (read-file-name "Write block to file: ")))
(write-region ws-block-begin-marker ws-block-end-marker filename))
(ws-error (cond (ws-block-begin-marker "Block end marker not set")
(ws-block-end-marker "Block begin marker not set")
(t "Block markers not set")))))
(defun ws-delete-block ()
"In WordStar mode: Delete block."
(interactive)
(if (and ws-block-begin-marker ws-block-end-marker)
(let ()
(kill-region ws-block-begin-marker ws-block-end-marker)
(setq ws-block-end-marker nil)
(setq ws-block-begin-marker nil))
(ws-error (cond (ws-block-begin-marker "Block end marker not set")
(ws-block-end-marker "Block begin marker not set")
(t "Block markers not set")))))
(defun ws-find-marker-0 ()
"In WordStar mode: Go to marker 0."
(interactive)
(if ws-marker-0
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-0))
(ws-error "Marker 0 not set")))
(defun ws-find-marker-1 ()
"In WordStar mode: Go to marker 1."
(interactive)
(if ws-marker-1
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-1))
(ws-error "Marker 1 not set")))
(defun ws-find-marker-2 ()
"In WordStar mode: Go to marker 2."
(interactive)
(if ws-marker-2
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-2))
(ws-error "Marker 2 not set")))
(defun ws-find-marker-3 ()
"In WordStar mode: Go to marker 3."
(interactive)
(if ws-marker-3
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-3))
(ws-error "Marker 3 not set")))
(defun ws-find-marker-4 ()
"In WordStar mode: Go to marker 4."
(interactive)
(if ws-marker-4
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-4))
(ws-error "Marker 4 not set")))
(defun ws-find-marker-5 ()
"In WordStar mode: Go to marker 5."
(interactive)
(if ws-marker-5
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-5))
(ws-error "Marker 5 not set")))
(defun ws-find-marker-6 ()
"In WordStar mode: Go to marker 6."
(interactive)
(if ws-marker-6
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-6))
(ws-error "Marker 6 not set")))
(defun ws-find-marker-7 ()
"In WordStar mode: Go to marker 7."
(interactive)
(if ws-marker-7
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-7))
(ws-error "Marker 7 not set")))
(defun ws-find-marker-8 ()
"In WordStar mode: Go to marker 8."
(interactive)
(if ws-marker-8
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-8))
(ws-error "Marker 8 not set")))
(defun ws-find-marker-9 ()
"In WordStar mode: Go to marker 9."
(interactive)
(if ws-marker-9
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-marker-9))
(ws-error "Marker 9 not set")))
(defun ws-goto-block-begin ()
"In WordStar mode: Go to block begin marker."
(interactive)
(if ws-block-begin-marker
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-block-begin-marker))
(ws-error "Block begin marker not set")))
(defun ws-search (string)
"In WordStar mode: Search string, remember string for repetition."
(interactive "sSearch for: ")
(message "Forward (f) or backward (b)")
(let ((direction
(read-char)))
(cond ((equal (upcase direction) ?F)
(setq ws-search-string string)
(setq ws-search-direction t)
(setq ws-last-cursorposition (point-marker))
(search-forward string))
((equal (upcase direction) ?B)
(setq ws-search-string string)
(setq ws-search-direction nil)
(setq ws-last-cursorposition (point-marker))
(search-backward string))
(t (keyboard-quit)))))
(defun ws-goto-block-end ()
"In WordStar mode: Go to block end marker."
(interactive)
(if ws-block-end-marker
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-block-end-marker))
(ws-error "Block end marker not set")))
(defun ws-undo ()
"In WordStar mode: Undo and give message about undoing more changes."
(interactive)
(undo)
(message "Repeat C-q l to undo more changes."))
(defun ws-goto-last-cursorposition ()
"In WordStar mode: "
(interactive)
(if ws-last-cursorposition
(let ()
(setq ws-last-cursorposition (point-marker))
(goto-char ws-last-cursorposition))
(ws-error "No last cursor position available.")))
(defun ws-last-error ()
"In WordStar mode: repeat last error message.
This will only work for errors raised by WordStar mode functions."
(interactive)
(if ws-last-errormessage
(message "%s" ws-last-errormessage)
(message "No WordStar error yet.")))
(defun ws-kill-eol ()
"In WordStar mode: Kill to end of line (like WordStar, not like Emacs)."
(interactive)
(let ((p (point)))
(end-of-line)
(kill-region p (point))))
(defun ws-kill-bol ()
"In WordStar mode: Kill to beginning of line
\(like WordStar, not like Emacs)."
(interactive)
(let ((p (point)))
(beginning-of-line)
(kill-region (point) p)))
(defun kill-complete-line ()
"Kill the complete line."
(interactive)
(beginning-of-line)
(if (eobp) (error "End of buffer"))
(let ((beg (point)))
(forward-line 1)
(kill-region beg (point))))
(defun ws-repeat-search ()
"In WordStar mode: Repeat last search."
(interactive)
(setq ws-last-cursorposition (point-marker))
(if ws-search-string
(if ws-search-direction
(search-forward ws-search-string)
(search-backward ws-search-string))
(ws-error "No search to repeat")))
(defun ws-query-replace (from to)
"In WordStar mode: Search string, remember string for repetition."
(interactive "sReplace:
sWith: " )
(setq ws-search-string from)
(setq ws-search-direction t)
(setq ws-last-cursorposition (point-marker))
(query-replace from to))
(defun ws-copy-block ()
"In WordStar mode: Copy block to current cursor position."
(interactive)
(if (and ws-block-begin-marker ws-block-end-marker)
(let ()
(copy-region-as-kill ws-block-begin-marker ws-block-end-marker)
(yank)
(save-excursion
(goto-char (region-beginning))
(setq ws-block-begin-marker (point-marker))
(goto-char (region-end))
(setq ws-block-end-marker (point-marker))))
(ws-error (cond (ws-block-begin-marker "Block end marker not set")
(ws-block-end-marker "Block begin marker not set")
(t "Block markers not set")))))
(provide 'ws-mode)
;;; arch-tag: 6dd864bf-2ccb-4d59-af6e-492eba2890a3
;;; ws-mode.el ends here
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