(require 'picture)
(defgroup tpu nil
"Emacs emulating TPU emulating EDT."
:prefix "tpu-"
:group 'emulations)
(defconst tpu-version "4.5" "TPU-edt version number.")
(defcustom tpu-have-ispell t
"*If non-nil (default), TPU-edt uses ispell for spell checking."
:type 'boolean
:group 'tpu)
(defcustom tpu-kill-buffers-silently nil
"*If non-nil, TPU-edt kills modified buffers without asking."
:type 'boolean
:group 'tpu)
(defcustom tpu-percent-scroll 75
"*Percentage of the screen to scroll for next/previous screen commands."
:type 'integer
:group 'tpu)
(defcustom tpu-pan-columns 16
"*Number of columns the tpu-pan functions scroll left or right."
:type 'integer
:group 'tpu)
(defconst tpu-lucid-emacs-p
(string-match "Lucid" emacs-version)
"Non-nil if we are running Lucid Emacs.")
(defvar CSI-map
(let ((map (make-sparse-keymap)))
(define-key map "A" 'tpu-previous-line) (define-key map "B" 'tpu-next-line) (define-key map "D" 'tpu-backward-char) (define-key map "C" 'tpu-forward-char)
(define-key map "1~" 'tpu-search) (define-key map "2~" 'tpu-paste) (define-key map "3~" 'tpu-cut) (define-key map "4~" 'tpu-select) (define-key map "5~" 'tpu-scroll-window-down) (define-key map "6~" 'tpu-scroll-window-up)
(define-key map "11~" 'nil) (define-key map "12~" 'nil) (define-key map "13~" 'nil) (define-key map "14~" 'nil) (define-key map "15~" 'nil) (define-key map "17~" 'nil) (define-key map "18~" 'nil) (define-key map "19~" 'nil) (define-key map "20~" 'nil) (define-key map "21~" 'tpu-exit) (define-key map "23~" 'tpu-insert-escape) (define-key map "24~" 'tpu-next-beginning-of-line) (define-key map "25~" 'tpu-delete-previous-word) (define-key map "26~" 'tpu-toggle-overwrite-mode) (define-key map "28~" 'tpu-help) (define-key map "29~" 'execute-extended-command) (define-key map "31~" 'tpu-goto-breadcrumb) (define-key map "32~" 'nil) (define-key map "33~" 'nil) (define-key map "34~" 'nil) map)
"Maps the CSI function keys on the VT100 keyboard.
CSI is DEC's name for the sequence <ESC>[.")
(defvar GOLD-CSI-map
(let ((map (make-sparse-keymap)))
(define-key map "A" 'tpu-move-to-beginning) (define-key map "B" 'tpu-move-to-end) (define-key map "C" 'end-of-line) (define-key map "D" 'beginning-of-line)
(define-key map "1~" 'nil) (define-key map "2~" 'nil) (define-key map "3~" 'tpu-store-text) (define-key map "4~" 'tpu-unselect) (define-key map "5~" 'tpu-previous-window) (define-key map "6~" 'tpu-next-window)
(define-key map "11~" 'nil) (define-key map "12~" 'nil) (define-key map "13~" 'nil) (define-key map "14~" 'nil) (define-key map "16~" 'nil) (define-key map "17~" 'nil) (define-key map "18~" 'nil) (define-key map "19~" 'nil) (define-key map "20~" 'nil) (define-key map "21~" 'nil) (define-key map "23~" 'nil) (define-key map "24~" 'nil) (define-key map "25~" 'nil) (define-key map "26~" 'nil) (define-key map "28~" 'describe-bindings) (define-key map "29~" 'nil) (define-key map "31~" 'tpu-drop-breadcrumb) (define-key map "32~" 'nil) (define-key map "33~" 'nil) (define-key map "34~" 'nil) map)
"Maps the function keys on the VT100 keyboard preceded by GOLD-CSI.")
(defvar GOLD-SS3-map
(let ((map (make-sparse-keymap)))
(define-key map "A" 'tpu-move-to-beginning) (define-key map "B" 'tpu-move-to-end) (define-key map "C" 'end-of-line) (define-key map "D" 'beginning-of-line)
(define-key map "P" 'keyboard-quit) (define-key map "Q" 'help-for-help) (define-key map "R" 'tpu-search) (define-key map "S" 'tpu-undelete-lines) (define-key map "p" 'open-line) (define-key map "q" 'tpu-change-case) (define-key map "r" 'tpu-delete-to-eol) (define-key map "s" 'tpu-special-insert) (define-key map "t" 'tpu-move-to-end) (define-key map "u" 'tpu-move-to-beginning) (define-key map "v" 'tpu-paste) (define-key map "w" 'execute-extended-command) (define-key map "x" 'tpu-fill) (define-key map "y" 'tpu-replace) (define-key map "m" 'tpu-undelete-words) (define-key map "l" 'tpu-undelete-char) (define-key map "n" 'tpu-unselect) (define-key map "M" 'tpu-substitute) map)
"Maps the function keys on the VT100 keyboard preceded by GOLD-SS3.")
(defvar GOLD-map
(let ((map (make-keymap)))
(define-key map "\e[" GOLD-CSI-map) (define-key map "\eO" GOLD-SS3-map) (define-key map "\C-A" 'tpu-toggle-overwrite-mode) (define-key map "\C-B" 'nil) (define-key map "\C-C" 'nil) (define-key map "\C-D" 'nil) (define-key map "\C-E" 'nil) (define-key map "\C-F" 'set-visited-file-name) (define-key map "\C-g" 'keyboard-quit) (define-key map "\C-h" 'delete-other-windows) (define-key map "\C-i" 'other-window) (define-key map "\C-J" 'nil) (define-key map "\C-K" 'tpu-define-macro-key) (define-key map "\C-l" 'downcase-region) (define-key map "\C-M" 'nil) (define-key map "\C-N" 'nil) (define-key map "\C-O" 'nil) (define-key map "\C-P" 'nil) (define-key map "\C-Q" 'nil) (define-key map "\C-R" 'nil) (define-key map "\C-S" 'nil) (define-key map "\C-T" 'tpu-toggle-control-keys) (define-key map "\C-u" 'upcase-region) (define-key map "\C-V" 'nil) (define-key map "\C-w" 'tpu-write-current-buffers) (define-key map "\C-X" 'nil) (define-key map "\C-Y" 'nil) (define-key map "\C-Z" 'nil) (define-key map " " 'undo) (define-key map "!" 'nil) (define-key map "#" 'nil) (define-key map "$" 'tpu-add-at-eol) (define-key map "%" 'tpu-goto-percent) (define-key map "&" 'nil) (define-key map "(" 'nil) (define-key map ")" 'nil) (define-key map "*" 'tpu-toggle-regexp) (define-key map "+" 'nil) (define-key map "," 'tpu-goto-breadcrumb) (define-key map "-" 'negative-argument) (define-key map "." 'tpu-drop-breadcrumb) (define-key map "/" 'tpu-emacs-replace) (define-key map "0" 'digit-argument) (define-key map "1" 'digit-argument) (define-key map "2" 'digit-argument) (define-key map "3" 'digit-argument) (define-key map "4" 'digit-argument) (define-key map "5" 'digit-argument) (define-key map "6" 'digit-argument) (define-key map "7" 'digit-argument) (define-key map "8" 'digit-argument) (define-key map "9" 'digit-argument) (define-key map ":" 'nil) (define-key map ";" 'tpu-trim-line-ends) (define-key map "<" 'nil) (define-key map "=" 'nil) (define-key map ">" 'nil) (define-key map "?" 'tpu-spell-check) (define-key map "A" 'tpu-toggle-newline-and-indent) (define-key map "B" 'tpu-next-buffer) (define-key map "C" 'repeat-complex-command) (define-key map "D" 'shell-command) (define-key map "E" 'tpu-exit) (define-key map "F" 'tpu-set-cursor-free) (define-key map "G" 'tpu-get) (define-key map "H" 'nil) (define-key map "I" 'tpu-include) (define-key map "K" 'tpu-kill-buffer) (define-key map "L" 'tpu-what-line) (define-key map "M" 'buffer-menu) (define-key map "N" 'tpu-next-file-buffer) (define-key map "O" 'occur) (define-key map "P" 'lpr-buffer) (define-key map "Q" 'tpu-quit) (define-key map "R" 'tpu-toggle-rectangle) (define-key map "S" 'replace) (define-key map "T" 'tpu-line-to-top-of-window) (define-key map "U" 'undo) (define-key map "V" 'tpu-version) (define-key map "W" 'save-buffer) (define-key map "X" 'tpu-save-all-buffers-kill-emacs) (define-key map "Y" 'copy-region-as-kill) (define-key map "Z" 'suspend-emacs) (define-key map "[" 'blink-matching-open) (define-key map "\\" 'nil) (define-key map "]" 'blink-matching-open) (define-key map "^" 'tpu-add-at-bol) (define-key map "_" 'split-window-vertically) (define-key map "`" 'what-line) (define-key map "a" 'tpu-toggle-newline-and-indent) (define-key map "b" 'tpu-next-buffer) (define-key map "c" 'repeat-complex-command) (define-key map "d" 'shell-command) (define-key map "e" 'tpu-exit) (define-key map "f" 'tpu-set-cursor-free) (define-key map "g" 'tpu-get) (define-key map "h" 'nil) (define-key map "i" 'tpu-include) (define-key map "k" 'tpu-kill-buffer) (define-key map "l" 'goto-line) (define-key map "m" 'buffer-menu) (define-key map "n" 'tpu-next-file-buffer) (define-key map "o" 'occur) (define-key map "p" 'lpr-region) (define-key map "q" 'tpu-quit) (define-key map "r" 'tpu-toggle-rectangle) (define-key map "s" 'replace) (define-key map "t" 'tpu-line-to-top-of-window) (define-key map "u" 'undo) (define-key map "v" 'tpu-version) (define-key map "w" 'save-buffer) (define-key map "x" 'tpu-save-all-buffers-kill-emacs) (define-key map "y" 'copy-region-as-kill) (define-key map "z" 'suspend-emacs) (define-key map "{" 'nil) (define-key map "|" 'split-window-horizontally) (define-key map "}" 'nil) (define-key map "~" 'exchange-point-and-mark) (define-key map "\177" 'delete-window) map)
"Maps the function keys on the VT100 keyboard preceded by PF1.
GOLD is the ASCII 7-bit escape sequence <ESC>OP.")
(defvar SS3-map
(let ((map (make-sparse-keymap)))
(define-key map "P" GOLD-map) (define-key map "A" 'tpu-previous-line) (define-key map "B" 'tpu-next-line) (define-key map "C" 'tpu-forward-char) (define-key map "D" 'tpu-backward-char)
(define-key map "Q" 'tpu-help) (define-key map "R" 'tpu-search-again) (define-key map "S" 'tpu-delete-current-line) (define-key map "p" 'tpu-line) (define-key map "q" 'tpu-word) (define-key map "r" 'tpu-end-of-line) (define-key map "s" 'tpu-char) (define-key map "t" 'tpu-advance-direction) (define-key map "u" 'tpu-backup-direction) (define-key map "v" 'tpu-cut) (define-key map "w" 'tpu-page) (define-key map "x" 'tpu-scroll-window) (define-key map "y" 'tpu-append-region) (define-key map "m" 'tpu-delete-current-word) (define-key map "l" 'tpu-delete-current-char) (define-key map "n" 'tpu-select) (define-key map "M" 'newline) map)
"Maps the SS3 function keys on the VT100 keyboard.
SS3 is DEC's name for the sequence <ESC>O.")
(defvar tpu-global-map
(let ((map (make-sparse-keymap)))
(define-key map "\e[" CSI-map)
(define-key map "\eO" SS3-map)
map)
"TPU-edt global keymap.")
(and (not (boundp 'minibuffer-local-ns-map))
(defvar minibuffer-local-ns-map (make-sparse-keymap)
"Hack to give Lucid Emacs the same maps as ordinary Emacs."))
(defvar tpu-last-replaced-text ""
"Last text deleted by a TPU-edt replace command.")
(defvar tpu-last-deleted-region ""
"Last text deleted by a TPU-edt remove command.")
(defvar tpu-last-deleted-lines ""
"Last text deleted by a TPU-edt line-delete command.")
(defvar tpu-last-deleted-words ""
"Last text deleted by a TPU-edt word-delete command.")
(defvar tpu-last-deleted-char ""
"Last character deleted by a TPU-edt character-delete command.")
(defvar tpu-searching-forward t
"If non-nil, TPU-edt is searching in the forward direction.")
(defvar tpu-search-last-string ""
"Last text searched for by the TPU-edt search commands.")
(defvar tpu-search-overlay (make-overlay 1 1)
"Search highlight overlay.")
(overlay-put tpu-search-overlay 'face 'bold)
(defvar tpu-replace-overlay (make-overlay 1 1)
"Replace highlight overlay.")
(overlay-put tpu-replace-overlay 'face 'highlight)
(defvar tpu-regexp-p nil
"If non-nil, TPU-edt uses regexp search and replace routines.")
(defvar tpu-rectangular-p nil
"If non-nil, TPU-edt removes and inserts rectangles.")
(defvar tpu-advance t
"True when TPU-edt is operating in the forward direction.")
(defvar tpu-reverse nil
"True when TPU-edt is operating in the backward direction.")
(defvar tpu-control-keys nil
"If non-nil, control keys are set to perform TPU functions.")
(defvar tpu-xkeys-file nil
"File containing TPU-edt X key map.")
(defvar tpu-rectangle-string nil
"Mode line string to identify rectangular mode.")
(defvar tpu-direction-string nil
"Mode line string to identify current direction.")
(defvar tpu-add-at-bol-hist nil
"History variable for tpu-edt-add-at-bol function.")
(defvar tpu-add-at-eol-hist nil
"History variable for tpu-edt-add-at-eol function.")
(defvar tpu-regexp-prompt-hist nil
"History variable for search and replace functions.")
(defvar tpu-newline-and-indent-p nil
"If non-nil, Return produces a newline and indents.")
(make-variable-buffer-local 'tpu-newline-and-indent-p)
(defvar tpu-newline-and-indent-string nil
"Mode line string to identify AutoIndent mode.")
(make-variable-buffer-local 'tpu-newline-and-indent-string)
(defvar tpu-saved-delete-func nil
"Saved value of the delete key.")
(make-variable-buffer-local 'tpu-saved-delete-func)
(defvar tpu-buffer-local-map nil
"TPU-edt buffer local key map.")
(make-variable-buffer-local 'tpu-buffer-local-map)
(defvar tpu-original-mm-alist minor-mode-alist)
(defvar tpu-mark-flag "")
(make-variable-buffer-local 'tpu-mark-flag)
(defun tpu-set-mode-line (for-tpu)
"Set ``minor-mode-alist'' for TPU-edt, or reset it to default Emacs."
(let ((entries '((tpu-newline-and-indent-p tpu-newline-and-indent-string)
(tpu-rectangular-p tpu-rectangle-string)
(tpu-direction-string tpu-direction-string)
(tpu-mark-flag tpu-mark-flag))))
(dolist (entry entries)
(if for-tpu
(add-to-list 'minor-mode-alist entry)
(setq minor-mode-alist (remove entry minor-mode-alist))))))
(defun tpu-update-mode-line nil
"Make sure mode-line in the current buffer reflects all changes."
(setq tpu-mark-flag (if transient-mark-mode "" (if (tpu-mark) " @" " ")))
(force-mode-line-update))
(cond (tpu-lucid-emacs-p
(add-hook 'zmacs-deactivate-region-hook 'tpu-update-mode-line)
(add-hook 'zmacs-activate-region-hook 'tpu-update-mode-line))
(t
(add-hook 'activate-mark-hook 'tpu-update-mode-line)
(add-hook 'deactivate-mark-hook 'tpu-update-mode-line)))
(defvar tpu-match-beginning-mark (make-marker))
(defvar tpu-match-end-mark (make-marker))
(defun tpu-set-match nil
"Set markers at match beginning and end."
(setq tpu-match-beginning-mark (copy-marker (match-beginning 0) t))
(setq tpu-match-end-mark (copy-marker (match-end 0))))
(defun tpu-unset-match nil
"Unset match beginning and end markers."
(set-marker tpu-match-beginning-mark nil)
(set-marker tpu-match-end-mark nil))
(defun tpu-match-beginning nil
"Returns the location of the last match beginning."
(marker-position tpu-match-beginning-mark))
(defun tpu-match-end nil
"Returns the location of the last match end."
(marker-position tpu-match-end-mark))
(defun tpu-check-match nil
"Returns t if point is between tpu-match markers.
Otherwise sets the tpu-match markers to nil and returns nil."
(cond ((and
(equal (marker-buffer tpu-match-beginning-mark) (current-buffer))
(>= (point) (marker-position tpu-match-beginning-mark))
(or
(< (point) (marker-position tpu-match-end-mark))
(and (= (marker-position tpu-match-beginning-mark)
(marker-position tpu-match-end-mark))
(= (marker-position tpu-match-end-mark) (point))))) t)
(t
(tpu-unset-match) nil)))
(defun tpu-show-match-markers nil
"Show the values of the match markers."
(interactive)
(if (markerp tpu-match-beginning-mark)
(message "(%s, %s) in %s -- current %s in %s"
(marker-position tpu-match-beginning-mark)
(marker-position tpu-match-end-mark)
(marker-buffer tpu-match-end-mark)
(point) (current-buffer))))
(defun tpu-caar (thingy) (car (car thingy)))
(defun tpu-cadr (thingy) (car (cdr thingy)))
(defvar zmacs-regions)
(defun tpu-mark nil
"TPU-edt version of the mark function.
Return the appropriate value of the mark for the current
version of Emacs."
(cond (tpu-lucid-emacs-p (mark (not zmacs-regions)))
(t (and mark-active (mark (not transient-mark-mode))))))
(defun tpu-set-mark (pos)
"TPU-edt version of the `set-mark' function.
Sets the mark at POS and activates the region according to the
current version of Emacs."
(set-mark pos)
(if (fboundp 'zmacs-activate-region) (if pos (zmacs-activate-region))))
(defun tpu-string-prompt (prompt history-symbol)
"Read a string with PROMPT."
(read-from-minibuffer prompt nil nil nil history-symbol))
(defvar tpu-last-answer nil "Most recent response to tpu-y-or-n-p.")
(defun tpu-y-or-n-p (prompt &optional not-yes)
"Prompt for a y or n answer with positive default.
Optional second argument NOT-YES changes default to negative.
Like Emacs `y-or-n-p', but also accepts space as y and DEL as n."
(message "%s[%s]" prompt (if not-yes "n" "y"))
(let ((doit t))
(while doit
(setq doit nil)
(let ((ans (read-char)))
(cond ((or (= ans ?y) (= ans ?Y) (= ans ?\ ))
(setq tpu-last-answer t))
((or (= ans ?n) (= ans ?N) (= ans ?\C-?))
(setq tpu-last-answer nil))
((= ans ?\r) (setq tpu-last-answer (not not-yes)))
(t
(setq doit t) (beep)
(message "Please answer y or n. %s[%s]"
prompt (if not-yes "n" "y")))))))
tpu-last-answer)
(defun tpu-local-set-key (key func)
"Replace a key in the TPU-edt local key map.
Create the key map if necessary."
(cond ((not (keymapp tpu-buffer-local-map))
(setq tpu-buffer-local-map (if (current-local-map)
(copy-keymap (current-local-map))
(make-sparse-keymap)))
(use-local-map tpu-buffer-local-map)))
(local-set-key key func))
(defun tpu-current-line nil
"Return the vertical position of point in the selected window.
Top line is 0. Counts each text line only once, even if it wraps."
(+ (count-lines (window-start) (point)) (if (= (current-column) 0) 1 0) -1))
(defvar tpu-breadcrumb-plist nil
"The set of user-defined markers (breadcrumbs), as a plist.")
(defun tpu-drop-breadcrumb (num)
"Drops a breadcrumb that can be returned to later with goto-breadcrumb."
(interactive "p")
(put tpu-breadcrumb-plist num (list (current-buffer) (point)))
(message "Mark %d set." num))
(defun tpu-goto-breadcrumb (num)
"Returns to a breadcrumb set with drop-breadcrumb."
(interactive "p")
(cond ((get tpu-breadcrumb-plist num)
(switch-to-buffer (car (get tpu-breadcrumb-plist num)))
(goto-char (tpu-cadr (get tpu-breadcrumb-plist num)))
(message "mark %d found." num))
(t
(message "mark %d not found." num))))
(defun tpu-change-case (num)
"Change the case of the character under the cursor or region.
Accepts a prefix argument of the number of characters to invert."
(interactive "p")
(cond ((tpu-mark)
(let ((beg (region-beginning)) (end (region-end)))
(while (> end beg)
(funcall (if (= (downcase (char-after beg)) (char-after beg))
'upcase-region 'downcase-region)
beg (1+ beg))
(setq beg (1+ beg)))
(tpu-unselect t)))
((tpu-check-match)
(let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
(while (> end beg)
(funcall (if (= (downcase (char-after beg)) (char-after beg))
'upcase-region 'downcase-region)
beg (1+ beg))
(setq beg (1+ beg)))
(tpu-unset-match)))
(t
(while (> num 0)
(funcall (if (= (downcase (following-char)) (following-char))
'upcase-region 'downcase-region)
(point) (1+ (point)))
(forward-char (if tpu-reverse -1 1))
(setq num (1- num))))))
(defun tpu-fill (num)
"Fill paragraph or marked region.
With argument, fill and justify."
(interactive "P")
(cond ((tpu-mark)
(fill-region (point) (tpu-mark) num)
(tpu-unselect t))
(t
(fill-paragraph num))))
(defun tpu-version nil
"Print the TPU-edt version number."
(interactive)
(message
"TPU-edt version %s by Rob Riepel (riepel@networking.stanford.edu)"
tpu-version))
(defun tpu-reset-screen-size (height width)
"Sets the screen size."
(interactive "nnew screen height: \nnnew screen width: ")
(set-frame-height (selected-frame) height)
(set-frame-width (selected-frame) width))
(defun tpu-toggle-newline-and-indent nil
"Toggle between 'newline and indent' and 'simple newline'."
(interactive)
(cond (tpu-newline-and-indent-p
(setq tpu-newline-and-indent-string "")
(setq tpu-newline-and-indent-p nil)
(tpu-local-set-key "\C-m" 'newline))
(t
(setq tpu-newline-and-indent-string " AutoIndent")
(setq tpu-newline-and-indent-p t)
(tpu-local-set-key "\C-m" 'newline-and-indent)))
(tpu-update-mode-line)
(and (interactive-p)
(message "Carriage return inserts a newline%s"
(if tpu-newline-and-indent-p " and indents." "."))))
(defun tpu-spell-check nil
"Checks the spelling of the region, or of the entire buffer if no
region is selected."
(interactive)
(cond (tpu-have-ispell
(if (tpu-mark) (ispell-region (tpu-mark) (point)) (ispell-buffer)))
(t
(if (tpu-mark) (spell-region (tpu-mark) (point)) (spell-buffer))))
(if (tpu-mark) (tpu-unselect t)))
(defun tpu-toggle-overwrite-mode nil
"Switches in and out of overwrite mode"
(interactive)
(cond (overwrite-mode
(tpu-local-set-key "\177" tpu-saved-delete-func)
(overwrite-mode 0))
(t
(setq tpu-saved-delete-func (local-key-binding "\177"))
(tpu-local-set-key "\177" 'picture-backward-clear-column)
(overwrite-mode 1))))
(defun tpu-special-insert (num)
"Insert a character or control code according to
its ASCII decimal value."
(interactive "P")
(if overwrite-mode (delete-char 1))
(insert (if num num 0)))
(defun tpu-quoted-insert (num)
"Read next input character and insert it.
This is useful for inserting control characters."
(interactive "*p")
(let ((char (read-char)) )
(if overwrite-mode (delete-char num))
(insert-char char num)))
(defun tpu-include (file)
"TPU-like include file"
(interactive "fInclude file: ")
(insert-file-contents file)
(message ""))
(defun tpu-get (file)
"TPU-like get file"
(interactive "FFile to get: ")
(find-file file find-file-wildcards))
(defun tpu-what-line nil
"Tells what line the point is on,
and the total number of lines in the buffer."
(interactive)
(if (eobp)
(message "You are at the End of Buffer. The last line is %d."
(count-lines 1 (point-max)))
(let* ((cur (count-lines 1 (1+ (point))))
(max (count-lines 1 (point-max)))
(pct (/ (* 100 (+ cur (/ max 200))) max)))
(message "You are on line %d out of %d (%d%%)." cur max pct))))
(defun tpu-exit nil
"Exit the way TPU does, save current buffer and ask about others."
(interactive)
(if (not (eq (recursion-depth) 0))
(exit-recursive-edit)
(progn (save-buffer) (save-buffers-kill-emacs))))
(defun tpu-quit nil
"Quit the way TPU does, ask to make sure changes should be abandoned."
(interactive)
(let ((list (buffer-list))
(working t))
(while (and list working)
(let ((buffer (car list)))
(if (and (buffer-file-name buffer) (buffer-modified-p buffer))
(if (tpu-y-or-n-p
"Modifications will not be saved, continue quitting? ")
(kill-emacs t) (setq working nil)))
(setq list (cdr list))))
(if working (kill-emacs t))))
(define-minor-mode tpu-edt-mode
"TPU/edt emulation."
:global t
(if tpu-edt-mode (tpu-edt-on) (tpu-edt-off)))
(defalias 'TPU-EDT-MODE 'tpu-edt-mode)
(defalias 'tpu-edt 'tpu-edt-on)
(defalias 'TPU-EDT 'tpu-edt-on)
(defalias 'exit 'tpu-exit)
(defalias 'EXIT 'tpu-exit)
(defalias 'Get 'tpu-get)
(defalias 'GET 'tpu-get)
(defalias 'include 'tpu-include)
(defalias 'INCLUDE 'tpu-include)
(defalias 'quit 'tpu-quit)
(defalias 'QUIT 'tpu-quit)
(defalias 'spell 'tpu-spell-check)
(defalias 'SPELL 'tpu-spell-check)
(defalias 'what\ line 'tpu-what-line)
(defalias 'WHAT\ LINE 'tpu-what-line)
(defalias 'replace 'tpu-lm-replace)
(defalias 'REPLACE 'tpu-lm-replace)
(defalias 'help 'tpu-help)
(defalias 'HELP 'tpu-help)
(defalias 'set\ cursor\ free 'tpu-set-cursor-free)
(defalias 'SET\ CURSOR\ FREE 'tpu-set-cursor-free)
(defalias 'set\ cursor\ bound 'tpu-set-cursor-bound)
(defalias 'SET\ CURSOR\ BOUND 'tpu-set-cursor-bound)
(defalias 'set\ scroll\ margins 'tpu-set-scroll-margins)
(defalias 'SET\ SCROLL\ MARGINS 'tpu-set-scroll-margins)
(defalias 'tpu-error 'error)
(if (not (fboundp 'next-line-internal)) (fset 'next-line-internal 'line-move))
(defvar tpu-help-keypad-map "\f
_______________________ _______________________________
| HELP | Do | | | | | |
|KeyDefs| | | | | | |
|_______|_______________| |_______|_______|_______|_______|
_______________________ _______________________________
| Find |Insert |Remove | | Gold | HELP |FndNxt | Del L |
| | |Sto Tex| | key |E-Help | Find |Undel L|
|_______|_______|_______| |_______|_______|_______|_______|
|Select |Pre Scr|Nex Scr| | Page | Sect |Append | Del W |
| Reset |Pre Win|Nex Win| | Do | Fill |Replace|Undel W|
|_______|_______|_______| |_______|_______|_______|_______|
|Move up| |Forward|Reverse|Remove | Del C |
| Top | |Bottom | Top |Insert |Undel C|
_______|_______|_______ |_______|_______|_______|_______|
|Mov Lef|Mov Dow|Mov Rig| | Word | EOL | Char | |
|StaOfLi|Bottom |EndOfLi| |ChngCas|Del EOL|SpecIns| Enter |
|_______|_______|_______| |_______|_______|_______| |
| Line |Select | Subs |
| Open Line | Reset | |
|_______________|_______|_______|
")
(defvar tpu-help-text "
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\f
Control Characters
^A toggle insert and overwrite
^B recall
^E end of line
^G Cancel current operation
^H beginning of line
^J delete previous word
^K learn
^L insert page break
^R remember (during learn), re-center
^U delete to beginning of line
^V quote
^W refresh
^Z exit
^X^X exchange point and mark - useful for checking region boundaries
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\f
Gold-<key> Functions
B Next Buffer - display the next buffer (all buffers)
C Recall - edit and possibly repeat previous commands
E Exit - save current buffer and ask about others
G Get - load a file into a new edit buffer
I Include - include a file in this buffer
K Kill Buffer - abandon edits and delete buffer
M Buffer Menu - display a list of all buffers
N Next File Buffer - display next buffer containing a file
O Occur - show following lines containing REGEXP
Q Quit - exit without saving anything
R Toggle rectangular mode for remove and insert
S Search and substitute - line mode REPLACE command
^T Toggle control key bindings between TPU and Emacs
U Undo - undo the last edit
W Write - save current buffer
X Exit - save all modified buffers and exit
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\f
More extensive documentation on TPU-edt can be found in the `Commentary'
section of tpu-edt.el. This section can be accessed through the standard
Emacs help facility using the `p' option. Once you exit TPU-edt Help, one
of the following key sequences is sure to get you there.
^h p if you're not yet using TPU-edt
Gold-PF2 p if you're using TPU-edt
Alternatively, fire up Emacs help from the command prompt, with
M-x help-for-help <CR> p <CR>
Where `M-x' might be any of `Gold-KP7', 'Do', or 'ESC-x'.
When you successfully invoke this part of the Emacs help facility, you
will see a buffer named `*Finder*' listing a number of topics. Look for
tpu-edt under `emulations'.
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\f
*** No more help, use P to view previous screen")
(defvar tpu-help-enter (format "%s" "\eOM")) (defvar tpu-help-return (format "%s" "\r")) (defvar tpu-help-N "N") (defvar tpu-help-n "n") (defvar tpu-help-P "P") (defvar tpu-help-p "p")
(defun tpu-help nil
"Display TPU-edt help."
(interactive)
(save-window-excursion
(if (not (get-buffer "*TPU-edt Help*"))
(progn (generate-new-buffer "*TPU-edt Help*")
(switch-to-buffer "*TPU-edt Help*")
(insert tpu-help-keypad-map)
(insert tpu-help-text)
(setq buffer-read-only t)))
(switch-to-buffer "*TPU-edt Help*")
(delete-other-windows)
(tpu-move-to-beginning)
(forward-line 1)
(tpu-line-to-top-of-window)
(let ((key nil) (fkey nil) (split nil))
(while (not (equal tpu-help-return fkey))
(if split
(setq key
(read-key-sequence
"Press the key you want help on (RET=exit, ENTER=redisplay, N=next, P=prev): "))
(setq key
(read-key-sequence
"Press the key you want help on (RET to exit, N next screen, P prev screen): ")))
(setq fkey (format "%s" key))
(cond ((equal tpu-help-enter fkey)
(setq split nil)
(delete-other-windows))
((or (equal tpu-help-N fkey) (equal tpu-help-n fkey))
(cond (split
(condition-case nil
(scroll-other-window 8)
(error nil)))
(t
(forward-page)
(forward-line 1)
(tpu-line-to-top-of-window))))
((or (equal tpu-help-P fkey) (equal tpu-help-p fkey))
(cond (split
(condition-case nil
(scroll-other-window -8)
(error nil)))
(t
(forward-line -1)
(backward-page)
(forward-line 1)
(tpu-line-to-top-of-window))))
((not (equal tpu-help-return fkey))
(setq split t)
(describe-key key)
(if (not (key-binding key)) (sit-for 3))))))))
(defun tpu-insert-escape nil
"Inserts an escape character, and so becomes the escape-key alias."
(interactive)
(insert "\e"))
(defun tpu-insert-formfeed nil
"Inserts a formfeed character."
(interactive)
(insert "\C-L"))
(defvar tpu-saved-control-r nil "Saved value of Control-r.")
(defun tpu-end-define-macro-key (key)
"Ends the current macro definition"
(interactive "kPress the key you want to use to do what was just learned: ")
(end-kbd-macro nil)
(global-set-key key last-kbd-macro)
(global-set-key "\C-r" tpu-saved-control-r))
(defun tpu-define-macro-key nil
"Bind a set of keystrokes to a single key, or key combination."
(interactive)
(setq tpu-saved-control-r (global-key-binding "\C-r"))
(global-set-key "\C-r" 'tpu-end-define-macro-key)
(start-kbd-macro nil))
(defun tpu-kill-buffer nil
"Kills the current buffer. If tpu-kill-buffers-silently is non-nil,
kills modified buffers without asking."
(interactive)
(if tpu-kill-buffers-silently (set-buffer-modified-p nil))
(kill-buffer (current-buffer)))
(defun tpu-save-all-buffers-kill-emacs nil
"Save all buffers and exit Emacs."
(interactive)
(let ((delete-old-versions t))
(save-buffers-kill-emacs t)))
(defun tpu-write-current-buffers nil
"Save all modified buffers without exiting."
(interactive)
(save-some-buffers t))
(defun tpu-next-buffer nil
"Go to next buffer in ring."
(interactive)
(switch-to-buffer (car (reverse (buffer-list)))))
(defun tpu-next-file-buffer nil
"Go to next buffer in ring that is visiting a file or directory."
(interactive)
(let ((list (tpu-make-file-buffer-list (buffer-list))))
(setq list (delq (current-buffer) list))
(if (not list) (tpu-error "No other buffers."))
(switch-to-buffer (car (reverse list)))))
(defun tpu-make-file-buffer-list (buffer-list)
"Returns names from BUFFER-LIST excluding those beginning with a space or star."
(delq nil (mapcar '(lambda (b)
(if (or (= (aref (buffer-name b) 0) ? )
(= (aref (buffer-name b) 0) ?*)) nil b))
buffer-list)))
(defun tpu-next-window nil
"Move to the next window."
(interactive)
(if (one-window-p) (message "There is only one window on screen.")
(other-window 1)))
(defun tpu-previous-window nil
"Move to the previous window."
(interactive)
(if (one-window-p) (message "There is only one window on screen.")
(select-window (previous-window))))
(defun tpu-toggle-regexp nil
"Switches in and out of regular expression search and replace mode."
(interactive)
(setq tpu-regexp-p (not tpu-regexp-p))
(tpu-set-search)
(and (interactive-p)
(message "Regular expression search and substitute %sabled."
(if tpu-regexp-p "en" "dis"))))
(defun tpu-regexp-prompt (prompt)
"Read a string, adding 'RE' to the prompt if tpu-regexp-p is set."
(let ((re-prompt (concat (if tpu-regexp-p "RE ") prompt)))
(read-from-minibuffer re-prompt nil nil nil 'tpu-regexp-prompt-hist)))
(defun tpu-search-highlight nil
(if (tpu-check-match)
(move-overlay tpu-search-overlay
(tpu-match-beginning) (tpu-match-end) (current-buffer))
(unless (equal (overlay-start tpu-search-overlay)
(overlay-end tpu-search-overlay))
(move-overlay tpu-search-overlay 1 1 (current-buffer)))))
(defun tpu-search nil
"Search for a string or regular expression.
The search is performed in the current direction."
(interactive)
(tpu-set-search)
(tpu-search-internal ""))
(defun tpu-search-forward nil
"Search for a string or regular expression.
The search is begins in the forward direction."
(interactive)
(setq tpu-searching-forward t)
(tpu-set-search t)
(tpu-search-internal ""))
(defun tpu-search-reverse nil
"Search for a string or regular expression.
The search is begins in the reverse direction."
(interactive)
(setq tpu-searching-forward nil)
(tpu-set-search t)
(tpu-search-internal ""))
(defun tpu-search-again nil
"Search for the same string or regular expression as last time.
The search is performed in the current direction."
(interactive)
(tpu-search-internal tpu-search-last-string))
(defun tpu-set-search (&optional arg)
"Set the search functions and set the search direction to the current
direction. If an argument is specified, don't set the search direction."
(if (not arg) (setq tpu-searching-forward tpu-advance))
(cond (tpu-searching-forward
(cond (tpu-regexp-p
(fset 'tpu-emacs-search 're-search-forward)
(fset 'tpu-emacs-rev-search 're-search-backward))
(t
(fset 'tpu-emacs-search 'search-forward)
(fset 'tpu-emacs-rev-search 'search-backward))))
(t
(cond (tpu-regexp-p
(fset 'tpu-emacs-search 're-search-backward)
(fset 'tpu-emacs-rev-search 're-search-forward))
(t
(fset 'tpu-emacs-search 'search-backward)
(fset 'tpu-emacs-rev-search 'search-forward))))))
(defun tpu-search-internal (pat &optional quiet)
"Search for a string or regular expression."
(setq tpu-search-last-string
(if (not (string= "" pat)) pat (tpu-regexp-prompt "Search: ")))
(tpu-unset-match)
(tpu-adjust-search)
(let ((case-fold-search
(and case-fold-search (tpu-check-search-case tpu-search-last-string))))
(cond ((tpu-emacs-search tpu-search-last-string nil t)
(tpu-set-match) (goto-char (tpu-match-beginning)))
(t
(tpu-adjust-search t)
(let ((found nil) (pos nil))
(save-excursion
(let ((tpu-searching-forward (not tpu-searching-forward)))
(tpu-adjust-search)
(setq found (tpu-emacs-rev-search tpu-search-last-string nil t))
(setq pos (match-beginning 0))))
(cond
(found
(cond ((tpu-y-or-n-p
(format "Found in %s direction. Go there? "
(if tpu-searching-forward "reverse" "forward")))
(goto-char pos) (tpu-set-match)
(tpu-toggle-search-direction))))
(t
(if (not quiet)
(message
"%sSearch failed: \"%s\""
(if tpu-regexp-p "RE " "") tpu-search-last-string)))))))))
(defalias 'tpu-search-internal-core (symbol-function 'tpu-search-internal))
(defun tpu-check-search-case (string)
"Returns t if string contains upper case."
(if tpu-regexp-p
(let ((pat (copy-sequence string)) (case-fold-search nil) (pos 0))
(while (setq pos (string-match "\\\\\\\\" pat)) (aset pat (+ 1 pos) ?.))
(while (setq pos (string-match "\\\\B" pat)) (aset pat (+ 1 pos) ?.))
(while (setq pos (string-match "\\\\W" pat)) (aset pat (+ 1 pos) ?.))
(while (setq pos (string-match "\\\\S." pat))
(aset pat (+ 1 pos) ?.) (aset pat (+ 2 pos) ?.))
(string-equal pat (downcase pat)))
(string-equal string (downcase string))))
(defun tpu-adjust-search (&optional arg)
"For forward searches, move forward a character before searching,
and backward a character after a failed search. Arg means end of search."
(if tpu-searching-forward
(cond (arg (if (not (bobp)) (forward-char -1)))
(t (if (not (eobp)) (forward-char 1))))))
(defun tpu-toggle-search-direction nil
"Toggle the TPU-edt search direction.
Used for reversing a search in progress."
(interactive)
(setq tpu-searching-forward (not tpu-searching-forward))
(tpu-set-search t)
(and (interactive-p)
(message "Searching %sward."
(if tpu-searching-forward "for" "back"))))
(defun tpu-search-forward-exit nil
"Set search direction forward and exit minibuffer."
(interactive)
(setq tpu-searching-forward t)
(tpu-set-search t)
(exit-minibuffer))
(defun tpu-search-backward-exit nil
"Set search direction backward and exit minibuffer."
(interactive)
(setq tpu-searching-forward nil)
(tpu-set-search t)
(exit-minibuffer))
(defun tpu-select (&optional quiet)
"Sets the mark to define one end of a region."
(interactive "P")
(cond ((tpu-mark)
(tpu-unselect quiet))
(t
(tpu-set-mark (point))
(tpu-update-mode-line)
(if (not quiet) (message "Move the text cursor to select text.")))))
(defun tpu-unselect (&optional quiet)
"Removes the mark to unselect the current region."
(interactive "P")
(deactivate-mark)
(setq mark-ring nil)
(tpu-set-mark nil)
(tpu-update-mode-line)
(if (not quiet) (message "Selection canceled.")))
(defun tpu-toggle-rectangle nil
"Toggle rectangular mode for remove and insert."
(interactive)
(setq tpu-rectangular-p (not tpu-rectangular-p))
(setq tpu-rectangle-string (if tpu-rectangular-p " Rect" ""))
(tpu-update-mode-line)
(and (interactive-p)
(message "Rectangular cut and paste %sabled."
(if tpu-rectangular-p "en" "dis"))))
(defun tpu-arrange-rectangle nil
"Adjust point and mark to mark upper left and lower right
corners of a rectangle."
(let ((mc (current-column))
(pc (progn (exchange-point-and-mark) (current-column))))
(cond ((> (point) (tpu-mark)) (cond ((> pc mc) (exchange-point-and-mark))
(t (move-to-column mc t) (exchange-point-and-mark) (move-to-column pc t))))
(t (cond ((> pc mc) (move-to-column mc t) (exchange-point-and-mark) (move-to-column pc t) (exchange-point-and-mark)))))))
(defun tpu-cut-text nil
"Delete the selected region.
The text is saved for the tpu-paste command."
(interactive)
(cond ((tpu-mark)
(cond (tpu-rectangular-p
(tpu-arrange-rectangle)
(picture-clear-rectangle (point) (tpu-mark) (not overwrite-mode))
(tpu-unselect t))
(t
(setq tpu-last-deleted-region
(buffer-substring (tpu-mark) (point)))
(delete-region (tpu-mark) (point))
(tpu-unselect t))))
((tpu-check-match)
(let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
(setq tpu-last-deleted-region (buffer-substring beg end))
(delete-region beg end)
(tpu-unset-match)))
(t
(tpu-error "No selection active."))))
(defun tpu-store-text nil
"Copy the selected region to the cut buffer without deleting it.
The text is saved for the tpu-paste command."
(interactive)
(cond ((tpu-mark)
(cond (tpu-rectangular-p
(save-excursion
(tpu-arrange-rectangle)
(setq picture-killed-rectangle
(extract-rectangle (point) (tpu-mark))))
(tpu-unselect t))
(t
(setq tpu-last-deleted-region
(buffer-substring (tpu-mark) (point)))
(tpu-unselect t))))
((tpu-check-match)
(setq tpu-last-deleted-region
(buffer-substring (tpu-match-beginning) (tpu-match-end)))
(tpu-unset-match))
(t
(tpu-error "No selection active."))))
(defun tpu-cut (arg)
"Copy selected region to the cut buffer. In the absence of an
argument, delete the selected region too."
(interactive "P")
(if arg (tpu-store-text) (tpu-cut-text)))
(defun tpu-append-region (arg)
"Append selected region to the tpu-cut buffer. In the absence of an
argument, delete the selected region too."
(interactive "P")
(cond ((tpu-mark)
(let ((beg (region-beginning)) (end (region-end)))
(setq tpu-last-deleted-region
(concat tpu-last-deleted-region
(buffer-substring beg end)))
(if (not arg) (delete-region beg end))
(tpu-unselect t)))
((tpu-check-match)
(let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
(setq tpu-last-deleted-region
(concat tpu-last-deleted-region
(buffer-substring beg end)))
(if (not arg) (delete-region beg end))
(tpu-unset-match)))
(t
(tpu-error "No selection active."))))
(defun tpu-delete-current-line (num)
"Delete one or specified number of lines after point.
This includes the newline character at the end of each line.
They are saved for the TPU-edt undelete-lines command."
(interactive "p")
(let ((beg (point)))
(forward-line num)
(if (not (eq (preceding-char) ?\n))
(insert "\n"))
(setq tpu-last-deleted-lines
(buffer-substring beg (point)))
(delete-region beg (point))))
(defun tpu-delete-to-eol (num)
"Delete text up to end of line.
With argument, delete up to the Nth line-end past point.
They are saved for the TPU-edt undelete-lines command."
(interactive "p")
(let ((beg (point)))
(forward-char 1)
(end-of-line num)
(setq tpu-last-deleted-lines
(buffer-substring beg (point)))
(delete-region beg (point))))
(defun tpu-delete-to-bol (num)
"Delete text back to beginning of line.
With argument, delete up to the Nth line-end past point.
They are saved for the TPU-edt undelete-lines command."
(interactive "p")
(let ((beg (point)))
(tpu-next-beginning-of-line num)
(setq tpu-last-deleted-lines
(buffer-substring (point) beg))
(delete-region (point) beg)))
(defun tpu-delete-current-word (num)
"Delete one or specified number of words after point.
They are saved for the TPU-edt undelete-words command."
(interactive "p")
(let ((beg (point)))
(tpu-forward-to-word num)
(setq tpu-last-deleted-words
(buffer-substring beg (point)))
(delete-region beg (point))))
(defun tpu-delete-previous-word (num)
"Delete one or specified number of words before point.
They are saved for the TPU-edt undelete-words command."
(interactive "p")
(let ((beg (point)))
(tpu-backward-to-word num)
(setq tpu-last-deleted-words
(buffer-substring (point) beg))
(delete-region beg (point))))
(defun tpu-delete-current-char (num)
"Delete one or specified number of characters after point. The last
character deleted is saved for the TPU-edt undelete-char command."
(interactive "p")
(while (and (> num 0) (not (eobp)))
(setq tpu-last-deleted-char (char-after (point)))
(cond (overwrite-mode
(picture-clear-column 1)
(forward-char 1))
(t
(delete-char 1)))
(setq num (1- num))))
(defun tpu-paste (num)
"Insert the last region or rectangle of killed text.
With argument reinserts the text that many times."
(interactive "p")
(while (> num 0)
(cond (tpu-rectangular-p
(let ((beg (point)))
(save-excursion
(picture-yank-rectangle (not overwrite-mode))
(message ""))
(goto-char beg)))
(t
(insert tpu-last-deleted-region)))
(setq num (1- num))))
(defun tpu-undelete-lines (num)
"Insert lines deleted by last TPU-edt line-deletion command.
With argument reinserts lines that many times."
(interactive "p")
(let ((beg (point)))
(while (> num 0)
(insert tpu-last-deleted-lines)
(setq num (1- num)))
(goto-char beg)))
(defun tpu-undelete-words (num)
"Insert words deleted by last TPU-edt word-deletion command.
With argument reinserts words that many times."
(interactive "p")
(let ((beg (point)))
(while (> num 0)
(insert tpu-last-deleted-words)
(setq num (1- num)))
(goto-char beg)))
(defun tpu-undelete-char (num)
"Insert character deleted by last TPU-edt character-deletion command.
With argument reinserts the character that many times."
(interactive "p")
(while (> num 0)
(if overwrite-mode (prog1 (forward-char -1) (delete-char 1)))
(insert tpu-last-deleted-char)
(forward-char -1)
(setq num (1- num))))
(defun tpu-replace nil
"Replace the selected region with the contents of the cut buffer."
(interactive)
(cond ((tpu-mark)
(let ((beg (region-beginning)) (end (region-end)))
(setq tpu-last-replaced-text (buffer-substring beg end))
(delete-region beg end)
(insert tpu-last-deleted-region)
(tpu-unselect t)))
((tpu-check-match)
(let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
(setq tpu-last-replaced-text (buffer-substring beg end))
(replace-match tpu-last-deleted-region
(not case-replace) (not tpu-regexp-p))
(tpu-unset-match)))
(t
(tpu-error "No selection active."))))
(defun tpu-substitute (num)
"Replace the selected region with the contents of the cut buffer, and
repeat most recent search. A numeric argument serves as a repeat count.
A negative argument means replace all occurrences of the search string."
(interactive "p")
(cond ((or (tpu-mark) (tpu-check-match))
(while (and (not (= num 0)) (or (tpu-mark) (tpu-check-match)))
(let ((beg (point)))
(tpu-replace)
(if tpu-searching-forward (forward-char -1) (goto-char beg))
(if (= num 1) (tpu-search-internal tpu-search-last-string)
(tpu-search-internal-core tpu-search-last-string)))
(setq num (1- num))))
(t
(tpu-error "No selection active."))))
(defun tpu-lm-replace (from to)
"Interactively search for OLD-string and substitute NEW-string."
(interactive (list (tpu-regexp-prompt "Old String: ")
(tpu-regexp-prompt "New String: ")))
(let ((doit t) (strings 0))
(if (string= "" from) (tpu-error "No string to replace."))
(tpu-set-search)
(tpu-search-internal from t)
(while doit
(if (not (tpu-check-match)) (setq doit nil)
(progn
(move-overlay tpu-replace-overlay
(tpu-match-beginning) (tpu-match-end) (current-buffer))
(message "Replace? Type Yes, No, All, Last, or Quit: ")
(let ((ans (read-char)))
(cond ((or (= ans ?y) (= ans ?Y) (= ans ?\r) (= ans ?\ ))
(let ((beg (point)))
(replace-match to (not case-replace) (not tpu-regexp-p))
(setq strings (1+ strings))
(if tpu-searching-forward (forward-char -1) (goto-char beg)))
(tpu-search-internal from t))
((or (= ans ?n) (= ans ?N) (= ans ?\C-?))
(tpu-search-internal from t))
((or (= ans ?a) (= ans ?A))
(save-excursion
(let ((beg (point)))
(replace-match to (not case-replace) (not tpu-regexp-p))
(setq strings (1+ strings))
(if tpu-searching-forward (forward-char -1) (goto-char beg)))
(tpu-search-internal-core from t)
(while (tpu-check-match)
(let ((beg (point)))
(replace-match to (not case-replace) (not tpu-regexp-p))
(setq strings (1+ strings))
(if tpu-searching-forward (forward-char -1) (goto-char beg)))
(tpu-search-internal-core from t)))
(setq doit nil))
((or (= ans ?l) (= ans ?L))
(let ((beg (point)))
(replace-match to (not case-replace) (not tpu-regexp-p))
(setq strings (1+ strings))
(if tpu-searching-forward (forward-char -1) (goto-char beg)))
(setq doit nil))
((or (= ans ?q) (= ans ?Q))
(tpu-unset-match)
(setq doit nil)))))))
(move-overlay tpu-replace-overlay 1 1 (current-buffer))
(message "Replaced %s occurrence%s." strings (if (not (= 1 strings)) "s" ""))))
(defun tpu-emacs-replace (&optional dont-ask)
"A TPU-edt interface to the Emacs replace functions. If TPU-edt is
currently in regular expression mode, the Emacs regular expression
replace functions are used. If an argument is supplied, replacements
are performed without asking. Only works in forward direction."
(interactive "P")
(cond (dont-ask
(setq current-prefix-arg nil)
(call-interactively
(if tpu-regexp-p 'replace-regexp 'replace-string)))
(t
(call-interactively
(if tpu-regexp-p 'query-replace-regexp 'query-replace)))))
(defun tpu-add-at-bol (text)
"Add text to the beginning of each line in a region,
or each line in the entire buffer if no region is selected."
(interactive
(list (tpu-string-prompt "String to add: " 'tpu-add-at-bol-hist)))
(if (string= "" text) (tpu-error "No string specified."))
(cond ((tpu-mark)
(save-excursion
(if (> (point) (tpu-mark)) (exchange-point-and-mark))
(while (and (< (point) (tpu-mark)) (re-search-forward "^" (tpu-mark) t))
(if (< (point) (tpu-mark)) (replace-match text))))
(tpu-unselect t))
(t
(save-excursion
(goto-char (point-min))
(while (and (re-search-forward "^" nil t) (not (eobp)))
(replace-match text))))))
(defun tpu-add-at-eol (text)
"Add text to the end of each line in a region,
or each line of the entire buffer if no region is selected."
(interactive
(list (tpu-string-prompt "String to add: " 'tpu-add-at-eol-hist)))
(if (string= "" text) (tpu-error "No string specified."))
(cond ((tpu-mark)
(save-excursion
(if (> (point) (tpu-mark)) (exchange-point-and-mark))
(while (< (point) (tpu-mark))
(end-of-line)
(if (<= (point) (tpu-mark)) (insert text))
(forward-line)))
(tpu-unselect t))
(t
(save-excursion
(goto-char (point-min))
(while (not (eobp))
(end-of-line) (insert text) (forward-line))))))
(defun tpu-trim-line-ends nil
"Removes trailing whitespace from every line in the buffer."
(interactive)
(save-match-data
(save-excursion
(goto-char (point-min))
(while (re-search-forward "[ \t][ \t]*$" nil t)
(delete-region (match-beginning 0) (match-end 0))))))
(defun tpu-char (num)
"Move to the next character in the current direction.
A repeat count means move that many characters."
(interactive "p")
(if tpu-advance (tpu-forward-char num) (tpu-backward-char num)))
(defun tpu-forward-char (num)
"Move right ARG characters (left if ARG is negative)."
(interactive "p")
(forward-char num))
(defun tpu-backward-char (num)
"Move left ARG characters (right if ARG is negative)."
(interactive "p")
(backward-char num))
(defvar tpu-word-separator-list '()
"List of additional word separators.")
(defvar tpu-skip-chars "^ \t"
"Characters to skip when moving by word.
Additional word separators are added to this string.")
(defun tpu-word (num)
"Move to the beginning of the next word in the current direction.
A repeat count means move that many words."
(interactive "p")
(if tpu-advance (tpu-forward-to-word num) (tpu-backward-to-word num)))
(defun tpu-forward-to-word (num)
"Move forward until encountering the beginning of a word.
With argument, do this that many times."
(interactive "p")
(while (and (> num 0) (not (eobp)))
(let* ((beg (point))
(end (prog2 (end-of-line) (point) (goto-char beg))))
(cond ((eolp)
(forward-char 1))
((memq (char-after (point)) tpu-word-separator-list)
(forward-char 1)
(skip-chars-forward " \t" end))
(t
(skip-chars-forward tpu-skip-chars end)
(skip-chars-forward " \t" end))))
(setq num (1- num))))
(defun tpu-backward-to-word (num)
"Move backward until encountering the beginning of a word.
With argument, do this that many times."
(interactive "p")
(while (and (> num 0) (not (bobp)))
(let* ((beg (point))
(end (prog2 (beginning-of-line) (point) (goto-char beg))))
(cond ((bolp)
( forward-char -1))
((memq (char-after (1- (point))) tpu-word-separator-list)
(forward-char -1))
(t
(skip-chars-backward " \t" end)
(skip-chars-backward tpu-skip-chars end)
(if (and (not (bolp)) (= ? (char-syntax (char-after (point)))))
(forward-char -1)))))
(setq num (1- num))))
(defun tpu-add-word-separators (separators)
"Add new word separators for TPU-edt word commands."
(interactive "sSeparators: ")
(let* ((n 0) (length (length separators)))
(while (< n length)
(let ((char (aref separators n))
(ss (substring separators n (1+ n))))
(cond ((not (memq char tpu-word-separator-list))
(setq tpu-word-separator-list
(append ss tpu-word-separator-list))
(cond ((= char ?-)
(setq tpu-skip-chars (concat tpu-skip-chars "\\-")))
((= char ?\\)
(setq tpu-skip-chars (concat tpu-skip-chars "\\\\")))
((= char ?^)
(setq tpu-skip-chars (concat tpu-skip-chars "\\^")))
(t
(setq tpu-skip-chars (concat tpu-skip-chars ss))))))
(setq n (1+ n))))))
(defun tpu-reset-word-separators nil
"Reset word separators to default value."
(interactive)
(setq tpu-word-separator-list nil)
(setq tpu-skip-chars "^ \t"))
(defun tpu-set-word-separators (separators)
"Set new word separators for TPU-edt word commands."
(interactive "sSeparators: ")
(tpu-reset-word-separators)
(tpu-add-word-separators separators))
(defun tpu-next-line (num)
"Move to next line.
Prefix argument serves as a repeat count."
(interactive "p")
(next-line-internal num)
(setq this-command 'next-line))
(defun tpu-previous-line (num)
"Move to previous line.
Prefix argument serves as a repeat count."
(interactive "p")
(next-line-internal (- num))
(setq this-command 'previous-line))
(defun tpu-next-beginning-of-line (num)
"Move to beginning of line; if at beginning, move to beginning of next line.
Accepts a prefix argument for the number of lines to move."
(interactive "p")
(backward-char 1)
(forward-visible-line (- 1 num)))
(defun tpu-end-of-line (num)
"Move to the next end of line in the current direction.
A repeat count means move that many lines."
(interactive "p")
(if tpu-advance (tpu-next-end-of-line num) (tpu-previous-end-of-line num)))
(defun tpu-next-end-of-line (num)
"Move to end of line; if at end, move to end of next line.
Accepts a prefix argument for the number of lines to move."
(interactive "p")
(forward-char 1)
(end-of-line num))
(defun tpu-previous-end-of-line (num)
"Move EOL upward.
Accepts a prefix argument for the number of lines to move."
(interactive "p")
(end-of-line (- 1 num)))
(defun tpu-current-end-of-line nil
"Move point to end of current line."
(interactive)
(let ((beg (point)))
(end-of-line)
(if (= beg (point)) (message "You are already at the end of a line."))))
(defun tpu-line (num)
"Move to the beginning of the next line in the current direction.
A repeat count means move that many lines."
(interactive "p")
(if tpu-advance (tpu-forward-line num) (tpu-backward-line num)))
(defun tpu-forward-line (num)
"Move to beginning of next line.
Prefix argument serves as a repeat count."
(interactive "p")
(forward-line num))
(defun tpu-backward-line (num)
"Move to beginning of previous line.
Prefix argument serves as repeat count."
(interactive "p")
(or (bolp) (>= 0 num) (setq num (- num 1)))
(forward-line (- num)))
(defun tpu-paragraph (num)
"Move to the next paragraph in the current direction.
A repeat count means move that many paragraphs."
(interactive "p")
(if tpu-advance
(tpu-next-paragraph num) (tpu-previous-paragraph num)))
(defun tpu-next-paragraph (num)
"Move to beginning of the next paragraph.
Accepts a prefix argument for the number of paragraphs."
(interactive "p")
(beginning-of-line)
(while (and (not (eobp)) (> num 0))
(if (re-search-forward "^[ \t]*$" nil t)
(if (re-search-forward "[^ \t\n]" nil t)
(goto-char (match-beginning 0))
(goto-char (point-max))))
(setq num (1- num)))
(beginning-of-line))
(defun tpu-previous-paragraph (num)
"Move to beginning of previous paragraph.
Accepts a prefix argument for the number of paragraphs."
(interactive "p")
(end-of-line)
(while (and (not (bobp)) (> num 0))
(if (not (and (re-search-backward "^[ \t]*$" nil t)
(re-search-backward "[^ \t\n]" nil t)
(re-search-backward "^[ \t]*$" nil t)
(progn (re-search-forward "[^ \t\n]" nil t)
(goto-char (match-beginning 0)))))
(goto-char (point-min)))
(setq num (1- num)))
(beginning-of-line))
(defun tpu-page (num)
"Move to the next page in the current direction.
A repeat count means move that many pages."
(interactive "p")
(if tpu-advance (forward-page num) (backward-page num))
(if (eobp) (recenter -1)))
(defun tpu-scroll-window (num)
"Scroll the display to the next section in the current direction.
A repeat count means scroll that many sections."
(interactive "p")
(if tpu-advance (tpu-scroll-window-up num) (tpu-scroll-window-down num)))
(defun tpu-scroll-window-down (num)
"Scroll the display down to the next section.
A repeat count means scroll that many sections."
(interactive "p")
(let* ((beg (tpu-current-line))
(height (1- (window-height)))
(lines (* num (/ (* height tpu-percent-scroll) 100))))
(next-line-internal (- lines))
(if (> lines beg) (recenter 0))))
(defun tpu-scroll-window-up (num)
"Scroll the display up to the next section.
A repeat count means scroll that many sections."
(interactive "p")
(let* ((beg (tpu-current-line))
(height (1- (window-height)))
(lines (* num (/ (* height tpu-percent-scroll) 100))))
(next-line-internal lines)
(if (>= (+ lines beg) height) (recenter -1))))
(defun tpu-pan-right (num)
"Pan right tpu-pan-columns (16 by default).
Accepts a prefix argument for the number of tpu-pan-columns to scroll."
(interactive "p")
(scroll-left (* tpu-pan-columns num)))
(defun tpu-pan-left (num)
"Pan left tpu-pan-columns (16 by default).
Accepts a prefix argument for the number of tpu-pan-columns to scroll."
(interactive "p")
(scroll-right (* tpu-pan-columns num)))
(defun tpu-move-to-beginning nil
"Move cursor to the beginning of buffer, but don't set the mark."
(interactive)
(goto-char (point-min)))
(defun tpu-move-to-end nil
"Move cursor to the end of buffer, but don't set the mark."
(interactive)
(goto-char (point-max))
(recenter -1))
(defun tpu-goto-percent (perc)
"Move point to ARG percentage of the buffer."
(interactive "NGoto-percentage: ")
(if (or (> perc 100) (< perc 0))
(tpu-error "Percentage %d out of range 0 < percent < 100." perc)
(goto-char (/ (* (point-max) perc) 100))))
(defun tpu-beginning-of-window nil
"Move cursor to top of window."
(interactive)
(move-to-window-line 0))
(defun tpu-end-of-window nil
"Move cursor to bottom of window."
(interactive)
(move-to-window-line -1))
(defun tpu-line-to-bottom-of-window nil
"Move the current line to the bottom of the window."
(interactive)
(recenter -1))
(defun tpu-line-to-top-of-window nil
"Move the current line to the top of the window."
(interactive)
(recenter 0))
(defun tpu-advance-direction nil
"Set TPU Advance mode so keypad commands move forward."
(interactive)
(setq tpu-direction-string " Advance")
(setq tpu-advance t)
(setq tpu-reverse nil)
(tpu-set-search)
(tpu-update-mode-line))
(defun tpu-backup-direction nil
"Set TPU Backup mode so keypad commands move backward."
(interactive)
(setq tpu-direction-string " Reverse")
(setq tpu-advance nil)
(setq tpu-reverse t)
(tpu-set-search)
(tpu-update-mode-line))
(defun tpu-toggle-direction nil
"Change the current TPU direction."
(interactive)
(if tpu-advance (tpu-backup-direction) (tpu-advance-direction)))
(define-key minibuffer-local-map [kp-enter] 'exit-minibuffer)
(define-key minibuffer-local-must-match-map [kp-enter] 'minibuffer-complete-and-exit)
(define-key minibuffer-local-map "\eOt" 'tpu-search-forward-exit) (define-key minibuffer-local-map "\eOu" 'tpu-search-backward-exit)
(defvar tpu-control-keys-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-\\" 'quoted-insert) (define-key map "\C-a" 'tpu-toggle-overwrite-mode) (define-key map "\C-b" 'repeat-complex-command) (define-key map "\C-e" 'tpu-current-end-of-line) (define-key map "\C-h" 'tpu-next-beginning-of-line) (define-key map "\C-j" 'tpu-delete-previous-word) (define-key map "\C-k" 'tpu-define-macro-key) (define-key map "\C-l" 'tpu-insert-formfeed) (define-key map "\C-r" 'recenter) (define-key map "\C-u" 'tpu-delete-to-bol) (define-key map "\C-v" 'tpu-quoted-insert) (define-key map "\C-w" 'redraw-display) (define-key map "\C-z" 'tpu-exit) map))
(defun tpu-set-control-keys ()
"Set control keys to TPU style functions."
(tpu-reset-control-keys 'tpu))
(defun tpu-reset-control-keys (tpu-style)
"Set control keys to TPU or Emacs style functions."
(let ((parent (keymap-parent tpu-global-map)))
(if tpu-style
(if (eq parent tpu-control-keys-map)
nil (set-keymap-parent tpu-control-keys-map parent)
(set-keymap-parent tpu-global-map tpu-control-keys-map))
(if (not (eq parent tpu-control-keys-map))
nil (set-keymap-parent tpu-global-map (keymap-parent parent))
(set-keymap-parent tpu-control-keys-map nil)))
(setq tpu-control-keys tpu-style)))
(defun tpu-toggle-control-keys nil
"Toggles control key bindings between TPU-edt and Emacs."
(interactive)
(tpu-reset-control-keys (not tpu-control-keys))
(and (interactive-p)
(message "Control keys function with %s bindings."
(if tpu-control-keys "TPU-edt" "Emacs"))))
(defun tpu-next-history-element (n)
"Insert the next element of the minibuffer history into the minibuffer."
(interactive "p")
(next-history-element n)
(goto-char (point-max)))
(defun tpu-previous-history-element (n)
"Insert the previous element of the minibuffer history into the minibuffer."
(interactive "p")
(previous-history-element n)
(goto-char (point-max)))
(defun tpu-arrow-history nil
"Modify minibuffer maps to use arrows for history recall."
(interactive)
(dolist (cur (where-is-internal 'tpu-previous-line))
(define-key read-expression-map cur 'tpu-previous-history-element)
(define-key minibuffer-local-map cur 'tpu-previous-history-element)
)
(dolist (cur (where-is-internal 'tpu-next-line))
(define-key read-expression-map cur 'tpu-next-history-element)
(define-key minibuffer-local-map cur 'tpu-next-history-element)
))
(defun tpu-load-xkeys (file)
"Load the TPU-edt X-windows key definitions FILE.
If FILE is nil, try to load a default file. The default file names are
`~/.tpu-lucid-keys' for Lucid emacs, and `~/.tpu-keys' for Emacs."
(interactive "fX key definition file: ")
(cond (file
(setq file (expand-file-name file)))
(tpu-xkeys-file
(setq file (expand-file-name tpu-xkeys-file)))
(tpu-lucid-emacs-p
(setq file (convert-standard-filename
(expand-file-name "~/.tpu-lucid-keys"))))
(t
(setq file (convert-standard-filename
(expand-file-name "~/.tpu-keys")))
(and (not (file-exists-p file))
(file-exists-p
(convert-standard-filename
(expand-file-name "~/.tpu-gnu-keys")))
(tpu-copy-keyfile
(convert-standard-filename
(expand-file-name "~/.tpu-gnu-keys")) file))))
(cond ((file-readable-p file)
(load-file file))
(t
(switch-to-buffer "*scratch*")
(erase-buffer)
(insert "
Ack!! You're running TPU-edt under X-windows without loading an
X key definition file. To create a TPU-edt X key definition
file, run the tpu-mapper.el program. It came with TPU-edt. It
even includes directions on how to use it! Perhaps it's lying
around here someplace. ")
(let ((file "tpu-mapper.el")
(found nil)
(path nil)
(search-list (append (list (expand-file-name ".")) load-path)))
(while (and (not found) search-list)
(setq path (concat (car search-list)
(if (string-match "/$" (car search-list)) "" "/")
file))
(if (and (file-exists-p path) (not (file-directory-p path)))
(setq found t))
(setq search-list (cdr search-list)))
(cond (found
(insert (format
"Ah yes, there it is, in \n\n %s \n\n" path))
(if (tpu-y-or-n-p "Do you want to run it now? ")
(load-file path)))
(t
(insert "Nope, I can't seem to find it. :-(\n\n")
(sit-for 120)))))))
(defun tpu-copy-keyfile (oldname newname)
"Copy the TPU-edt X key definitions file to the new default name."
(interactive "fOld name: \nFNew name: ")
(if (not (get-buffer "*TPU-Notice*")) (generate-new-buffer "*TPU-Notice*"))
(set-buffer "*TPU-Notice*")
(erase-buffer)
(insert "
NOTICE --
The default name of the TPU-edt key definition file has changed
from `~/.tpu-gnu-keys' to `~/.tpu-keys'. With your permission,
your key definitions will be copied to the new file. If you'll
never use older versions of Emacs, you can remove the old file.
If the copy fails, you'll be asked if you want to create a new
key definitions file. Do you want to copy your key definition
file now?
")
(save-window-excursion
(switch-to-buffer-other-window "*TPU-Notice*")
(shrink-window-if-larger-than-buffer)
(goto-char (point-min))
(beep)
(and (tpu-y-or-n-p "Copy key definitions to the new file now? ")
(condition-case conditions
(copy-file oldname newname)
(tpu-error (message "Sorry, couldn't copy - %s." (cdr conditions)))))
(kill-buffer "*TPU-Notice*")))
(defun tpu-edt-on ()
"Turn on TPU/edt emulation."
(interactive)
(set-keymap-parent tpu-global-map global-map)
(setq global-map tpu-global-map)
(use-global-map global-map)
(transient-mark-mode t)
(add-hook 'post-command-hook 'tpu-search-highlight)
(tpu-set-mode-line t)
(tpu-advance-direction)
(setq-default page-delimiter "\f")
(setq-default truncate-lines t)
(setq scroll-step 1)
(tpu-set-control-keys)
(and window-system (tpu-load-xkeys nil))
(tpu-arrow-history)
(let ((map (make-sparse-keymap)))
(set-keymap-parent map global-map)
(setq global-map map)
(use-global-map map))
(setq tpu-edt-mode t))
(defun tpu-edt-off ()
"Turn off TPU/edt emulation. Note that the keypad is left on."
(interactive)
(tpu-reset-control-keys nil)
(remove-hook 'post-command-hook 'tpu-search-highlight)
(tpu-set-mode-line nil)
(setq-default page-delimiter "^\f")
(setq-default truncate-lines nil)
(setq scroll-step 0)
(let ((map global-map))
(while map
(let ((parent (keymap-parent map)))
(if (eq tpu-global-map parent)
(set-keymap-parent map (keymap-parent parent))
(setq map parent)))))
(setq tpu-edt-mode nil))
(provide 'tpu-edt)