1 ;;; tpu-edt.el --- Emacs emulating TPU emulating EDT
3 ;; Copyright (C) 1993, 1994, 1995, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007 Free Software Foundation, Inc.
6 ;; Author: Rob Riepel <riepel@networking.stanford.edu>
7 ;; Maintainer: Rob Riepel <riepel@networking.stanford.edu>
9 ;; Keywords: emulations
11 ;; This file is part of GNU Emacs.
13 ;; GNU Emacs is free software; you can redistribute it and/or modify
14 ;; it under the terms of the GNU General Public License as published by
15 ;; the Free Software Foundation; either version 3, or (at your option)
18 ;; GNU Emacs is distributed in the hope that it will be useful,
19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ;; GNU General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs; see the file COPYING. If not, write to the
25 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
26 ;; Boston, MA 02110-1301, USA.
28 ;; TPU-edt is based on tpu.el by Jeff Kowalski and Bob Covey.
32 ;; %% TPU-edt -- Emacs emulating TPU emulating EDT
37 ;; % Differences Between TPU-edt and DEC TPU/edt
39 ;; % Customizing TPU-edt using the Emacs Initialization File
40 ;; % Regular Expressions in TPU-edt
45 ;; TPU-edt emulates the popular DEC VMS editor EDT (actually, it emulates
46 ;; DEC TPU's EDT emulation, hence the name TPU-edt). TPU-edt features the
47 ;; following TPU/edt functionality:
55 ;; . Rectangular cut and paste
56 ;; . Multiple windows and buffers
57 ;; . TPU line-mode REPLACE command
58 ;; . Wild card search and substitution
59 ;; . Configurable through an initialization file
60 ;; . History recall of search strings, file names, and commands
62 ;; Please note that TPU-edt does NOT emulate TPU. It emulates TPU's EDT
63 ;; emulation. Very few TPU line-mode commands are supported.
65 ;; TPU-edt, like its VMS cousin, works on VT-series terminals with DEC
66 ;; style keyboards. VT terminal emulators, including xterm with the
67 ;; appropriate key translations, work just fine too.
69 ;; TPU-edt works with X-windows. This is accomplished through a TPU-edt X
70 ;; key map. The TPU-edt module tpu-mapper creates this map and stores it
71 ;; in a file. Tpu-mapper will be run automatically the first time you
72 ;; invoke the X-windows version of emacs, or you can run it by hand. See
73 ;; the commentary in tpu-mapper.el for details.
76 ;; %% Differences Between TPU-edt and DEC TPU/edt
78 ;; In some cases, Emacs doesn't support text highlighting, so selected
79 ;; regions are not shown in inverse video. Emacs uses the concept of "the
80 ;; mark". The mark is set at one end of a selected region; the cursor is
81 ;; at the other. In cases where the selected region cannot be shown in
82 ;; inverse video an at sign (@) appears in the mode line when mark is set.
83 ;; The native emacs command ^X^X (Control-X twice) exchanges the cursor
84 ;; with the mark; this provides a handy way to find the location of the
87 ;; In TPU the cursor can be either bound or free. Bound means the cursor
88 ;; cannot wander outside the text of the file being edited. Free means
89 ;; the arrow keys can move the cursor past the ends of lines. Free is the
90 ;; default mode in TPU; bound is the only mode in EDT. Bound is the only
91 ;; mode in the base version of TPU-edt; optional extensions add an
92 ;; approximation of free mode, see the commentary in tpu-extras.el for
95 ;; Like TPU, emacs uses multiple buffers. Some buffers are used to hold
96 ;; files you are editing; other "internal" buffers are used for emacs' own
97 ;; purposes (like showing you help). Here are some commands for dealing
100 ;; Gold-B moves to next buffer, including internal buffers
101 ;; Gold-N moves to next buffer containing a file
102 ;; Gold-M brings up a buffer menu (like TPU "show buffers")
104 ;; Emacs is very fond of throwing up new windows. Dealing with all these
105 ;; windows can be a little confusing at first, so here are a few commands
108 ;; Gold-Next_Scr moves to the next window on the screen
109 ;; Gold-Prev_Scr moves to the previous window on the screen
110 ;; Gold-TAB also moves to the next window on the screen
112 ;; Control-x 1 deletes all but the current window
113 ;; Control-x 0 deletes the current window
115 ;; Note that the buffers associated with deleted windows still exist!
117 ;; Like TPU, TPU-edt has a "command" function, invoked with Gold-KP7 or
118 ;; Do. Most of the commands available are emacs commands. Some TPU
119 ;; commands are available, they are: replace, exit, quit, include, and
120 ;; Get (unfortunately, "get" is an internal emacs function, so we are
121 ;; stuck with "Get" - to make life easier, Get is available as Gold-g).
123 ;; TPU-edt supports the recall of commands, file names, and search
124 ;; strings. The history of strings recalled differs slightly from
125 ;; TPU/edt, but it is still very convenient.
127 ;; Help is available! The traditional help keys (Help and PF2) display
128 ;; a small help file showing the default keypad layout, control key
129 ;; functions, and Gold key functions. Pressing any key inside of help
130 ;; splits the screen and prints a description of the function of the
131 ;; pressed key. Gold-PF2 invokes the native emacs help, with its
132 ;; zillions of options.
134 ;; Thanks to emacs, TPU-edt has some extensions that may make your life
135 ;; easier, or at least more interesting. For example, Gold-r toggles
136 ;; TPU-edt rectangular mode. In rectangular mode, Remove and Insert work
137 ;; on rectangles. Likewise, Gold-* toggles TPU-edt regular expression
138 ;; mode. In regular expression mode Find, Find Next, and the line-mode
139 ;; replace command work with regular expressions. [A regular expression
140 ;; is a pattern that denotes a set of strings; like VMS wildcards.]
142 ;; Emacs also gives TPU-edt the undo and occur functions. Undo does
143 ;; what it says; it undoes the last change. Multiple undos in a row
144 ;; undo multiple changes. For your convenience, undo is available on
145 ;; Gold-u. Occur shows all the lines containing a specific string in
146 ;; another window. Moving to that window, and typing ^C^C (Control-C
147 ;; twice) on a particular line moves you back to the original window
148 ;; at that line. Occur is on Gold-o.
150 ;; Finally, as you edit, remember that all the power of emacs is at
151 ;; your disposal. It really is a fantastic tool. You may even want to
152 ;; take some time and read the emacs tutorial; perhaps not to learn the
153 ;; native emacs key bindings, but to get a feel for all the things
154 ;; emacs can do for you. The emacs tutorial is available from the
155 ;; emacs help function: "Gold-PF2 t"
158 ;; %% Starting TPU-edt
160 ;; All you have to do to start TPU-edt, is turn it on. This can be
161 ;; done from the command line when running emacs.
163 ;; prompt> emacs -f tpu-edt
165 ;; If you've already started emacs, turn on TPU-edt using the tpu-edt
166 ;; command. First press `M-x' (that's usually `ESC' followed by `x')
167 ;; and type `tpu-edt' followed by a carriage return.
169 ;; If you like TPU-edt and want to use it all the time, you can start
170 ;; TPU-edt using the emacs initialization file, .emacs. Simply create
171 ;; a .emacs file in your home directory containing the line:
175 ;; That's all you need to do to start TPU-edt.
178 ;; %% Customizing TPU-edt using the Emacs Initialization File
180 ;; The following is a sample emacs initialization file. It shows how to
181 ;; invoke TPU-edt, and how to customize it.
183 ;; ; .emacs - a sample emacs initialization file
188 ;; ; Set scroll margins 10% (top) and 15% (bottom).
189 ;; (tpu-set-scroll-margins "10%" "15%")
191 ;; ; Load the vtxxx terminal control functions.
192 ;; (load "vt-control" t)
194 ;; ; TPU-edt treats words like EDT; here's how to add word separators.
195 ;; ; Note that backslash (\) and double quote (") are quoted with '\'.
196 ;; (tpu-add-word-separators "]\\[-_,.\"=+()'/*#:!&;$")
198 ;; ; Emacs is happy to save files without a final newline; other Unix
199 ;; ; programs hate that! Here we make sure that files end with newlines.
200 ;; (setq require-final-newline t)
202 ;; ; Emacs uses Control-s and Control-q. Problems can occur when using
203 ;; ; emacs on terminals that use these codes for flow control (Xon/Xoff
204 ;; ; flow control). These lines disable emacs' use of these characters.
205 ;; (global-unset-key "\C-s")
206 ;; (global-unset-key "\C-q")
208 ;; ; The emacs universal-argument function is very useful.
209 ;; ; This line maps universal-argument to Gold-PF1.
210 ;; (define-key tpu-gold-map [kp_f1] 'universal-argument) ; Gold-PF1
212 ;; ; Make KP7 move by paragraphs, instead of pages.
213 ;; (define-key tpu-global-map [kf_7] 'tpu-paragraph) ; KP7
215 ;; ; Repeat the preceding mappings for X-windows.
218 ;; (define-key tpu-global-map [kp_7] 'tpu-paragraph) ; KP7
219 ;; (define-key tpu-gold-map [kp_f1] 'universal-argument))) ; GOLD-PF1
221 ;; ; Display the TPU-edt version.
225 ;; %% Regular Expressions in TPU-edt
227 ;; Gold-* toggles TPU-edt regular expression mode. In regular expression
228 ;; mode, find, find next, replace, and substitute accept emacs regular
229 ;; expressions. A complete list of emacs regular expressions can be found
230 ;; using the emacs "info" command (it's somewhat like the VMS help
231 ;; command). Try the following sequence of commands:
233 ;; DO info <enter info mode>
234 ;; m emacs <select the "emacs" topic>
235 ;; m regexs <select the "regular expression" topic>
237 ;; Type "q" to quit out of info mode.
239 ;; There is a problem in regular expression mode when searching for empty
240 ;; strings, like beginning-of-line (^) and end-of-line ($). When searching
241 ;; for these strings, find-next may find the current string, instead of the
242 ;; next one. This can cause global replace and substitute commands to loop
243 ;; forever in the same location. For this reason, commands like
245 ;; replace "^" "> " <add "> " to beginning of line>
246 ;; replace "$" "00711" <add "00711" to end of line>
248 ;; may not work properly.
250 ;; Commands like those above are very useful for adding text to the
251 ;; beginning or end of lines. They might work on a line-by-line basis, but
252 ;; go into an infinite loop if the "all" response is specified. If the
253 ;; goal is to add a string to the beginning or end of a particular set of
254 ;; lines TPU-edt provides functions to do this.
256 ;; Gold-^ Add a string at BOL in region or buffer
257 ;; Gold-$ Add a string at EOL in region or buffer
259 ;; There is also a TPU-edt interface to the native emacs string replacement
260 ;; commands. Gold-/ invokes this command. It accepts regular expressions
261 ;; if TPU-edt is in regular expression mode. Given a repeat count, it will
262 ;; perform the replacement without prompting for confirmation.
264 ;; This command replaces empty strings correctly, however, it has its
265 ;; drawbacks. As a native emacs command, it has a different interface
266 ;; than the emulated TPU commands. Also, it works only in the forward
267 ;; direction, regardless of the current TPU-edt direction.
271 ;; We shouldn't use vt100 ESC sequences since it is uselessly fighting
272 ;; against function-key-map. Better use real key names.
276 (eval-when-compile (require 'cl
))
277 ;; we use picture-mode functions
281 "Emacs emulating TPU emulating EDT."
287 ;;; Version Information
289 (defconst tpu-version
"4.5" "TPU-edt version number.")
293 ;;; User Configurable Variables
295 (defcustom tpu-have-ispell t
296 "If non-nil (default), TPU-edt uses ispell for spell checking."
300 (defcustom tpu-kill-buffers-silently nil
301 "If non-nil, TPU-edt kills modified buffers without asking."
305 (defcustom tpu-percent-scroll
75
306 "Percentage of the screen to scroll for next/previous screen commands."
310 (defcustom tpu-pan-columns
16
311 "Number of columns the tpu-pan functions scroll left or right."
321 (let ((map (make-keymap)))
322 ;; Previously we used escape sequences here. We now instead presume
323 ;; that term/*.el does its job to map the escape sequence to the right
326 (define-key map
[up] 'tpu-move-to-beginning) ; up-arrow
327 (define-key map [down] 'tpu-move-to-end) ; down-arrow
328 (define-key map [right] 'end-of-line) ; right-arrow
329 (define-key map [left] 'beginning-of-line) ; left-arrow
331 ;; (define-key map [find] nil) ; Find
332 ;; (define-key map [insert] nil) ; Insert Here
333 (define-key map [delete] 'tpu-store-text) ; Remove
334 (define-key map [select] 'tpu-unselect) ; Select
335 (define-key map [prior] 'tpu-previous-window) ; Prev Screen
336 (define-key map [next] 'tpu-next-window) ; Next Screen
338 ;; (define-key map [f1] nil) ; F1
339 ;; (define-key map [f2] nil) ; F2
340 ;; (define-key map [f3] nil) ; F3
341 ;; (define-key map [f4] nil) ; F4
342 ;; (define-key map [f5] nil) ; F5
343 ;; (define-key map [f6] nil) ; F6
344 ;; (define-key map [f7] nil) ; F7
345 ;; (define-key map [f8] nil) ; F8
346 ;; (define-key map [f9] nil) ; F9
347 ;; (define-key map [f10] nil) ; F10
348 ;; (define-key map [f11] nil) ; F11
349 ;; (define-key map [f12] nil) ; F12
350 ;; (define-key map [f13] nil) ; F13
351 ;; (define-key map [f14] nil) ; F14
352 (define-key map [help] 'describe-bindings) ; HELP
353 ;; (define-key map [menu] nil) ; DO
354 (define-key map [f17] 'tpu-drop-breadcrumb) ; F17
355 ;; (define-key map [f18] nil) ; F18
356 ;; (define-key map [f19] nil) ; F19
357 ;; (define-key map [f20] nil) ; F20
359 (define-key map [kp-f1] 'keyboard-quit) ; PF1
360 (define-key map [kp-f2] 'help-for-help) ; PF2
361 (define-key map [kp-f3] 'tpu-search) ; PF3
362 (define-key map [kp-f4] 'tpu-undelete-lines) ; PF4
363 (define-key map [kp-0] 'open-line) ; KP0
364 (define-key map [kp-1] 'tpu-change-case) ; KP1
365 (define-key map [kp-2] 'tpu-delete-to-eol) ; KP2
366 (define-key map [kp-3] 'tpu-special-insert) ; KP3
367 (define-key map [kp-4] 'tpu-move-to-end) ; KP4
368 (define-key map [kp-5] 'tpu-move-to-beginning) ; KP5
369 (define-key map [kp-6] 'tpu-paste) ; KP6
370 (define-key map [kp-7] 'execute-extended-command) ; KP7
371 (define-key map [kp-8] 'tpu-fill) ; KP8
372 (define-key map [kp-9] 'tpu-replace) ; KP9
373 (define-key map [kp-subtract] 'tpu-undelete-words) ; KP-
374 (define-key map [kp-separator] 'tpu-undelete-char) ; KP,
375 (define-key map [kp-decimal] 'tpu-unselect) ; KP.
376 (define-key map [kp-enter] 'tpu-substitute) ; KPenter
379 (define-key map "\C-A" 'tpu-toggle-overwrite-mode) ; ^A
380 ;; (define-key map "\C-B" nil) ; ^B
381 ;; (define-key map "\C-C" nil) ; ^C
382 ;; (define-key map "\C-D" nil) ; ^D
383 ;; (define-key map "\C-E" nil) ; ^E
384 (define-key map "\C-F" 'set-visited-file-name) ; ^F
385 (define-key map "\C-g" 'keyboard-quit) ; safety first
386 (define-key map "\C-h" 'delete-other-windows) ; BS
387 (define-key map "\C-i" 'other-window) ; TAB
388 ;; (define-key map "\C-J" nil) ; ^J
389 (define-key map "\C-K" 'tpu-define-macro-key) ; ^K
390 (define-key map "\C-l" 'downcase-region) ; ^L
391 ;; (define-key map "\C-M" nil) ; ^M
392 ;; (define-key map "\C-N" nil) ; ^N
393 ;; (define-key map "\C-O" nil) ; ^O
394 ;; (define-key map "\C-P" nil) ; ^P
395 ;; (define-key map "\C-Q" nil) ; ^Q
396 ;; (define-key map "\C-R" nil) ; ^R
397 ;; (define-key map "\C-S" nil) ; ^S
398 (define-key map "\C-T" 'tpu-toggle-control-keys) ; ^T
399 (define-key map "\C-u" 'upcase-region) ; ^U
400 ;; (define-key map "\C-V" nil) ; ^V
401 (define-key map "\C-w" 'tpu-write-current-buffers) ; ^W
402 ;; (define-key map "\C-X" nil) ; ^X
403 ;; (define-key map "\C-Y" nil) ; ^Y
404 ;; (define-key map "\C-Z" nil) ; ^Z
405 (define-key map " " 'undo) ; SPC
406 ;; (define-key map "!" nil) ; !
407 ;; (define-key map "#" nil) ; #
408 (define-key map "$" 'tpu-add-at-eol) ; $
409 (define-key map "%" 'tpu-goto-percent) ; %
410 ;; (define-key map "&" nil) ; &
411 ;; (define-key map "(" nil) ; (
412 ;; (define-key map ")" nil) ; )
413 (define-key map "*" 'tpu-toggle-regexp) ; *
414 ;; (define-key map "+" nil) ; +
415 (define-key map "," 'tpu-goto-breadcrumb) ; ,
416 (define-key map "-" 'negative-argument) ; -
417 (define-key map "." 'tpu-drop-breadcrumb) ; .
418 (define-key map "/" 'tpu-emacs-replace) ; /
419 (define-key map "0" 'digit-argument) ; 0
420 (define-key map "1" 'digit-argument) ; 1
421 (define-key map "2" 'digit-argument) ; 2
422 (define-key map "3" 'digit-argument) ; 3
423 (define-key map "4" 'digit-argument) ; 4
424 (define-key map "5" 'digit-argument) ; 5
425 (define-key map "6" 'digit-argument) ; 6
426 (define-key map "7" 'digit-argument) ; 7
427 (define-key map "8" 'digit-argument) ; 8
428 (define-key map "9" 'digit-argument) ; 9
429 ;; (define-key map ":" nil) ; :
430 (define-key map ";" 'tpu-trim-line-ends) ; ;
431 ;; (define-key map "<" nil) ; <
432 ;; (define-key map "=" nil) ; =
433 ;; (define-key map ">" nil) ; >
434 (define-key map "?" 'tpu-spell-check) ; ?
435 ;; (define-key map "A" 'tpu-toggle-newline-and-indent) ; A
436 ;; (define-key map "B" 'tpu-next-buffer) ; B
437 ;; (define-key map "C" 'repeat-complex-command) ; C
438 ;; (define-key map "D" 'shell-command) ; D
439 ;; (define-key map "E" 'tpu-exit) ; E
440 ;; (define-key map "F" 'tpu-cursor-free-mode) ; F
441 ;; (define-key map "G" 'tpu-get) ; G
442 ;; (define-key map "H" nil) ; H
443 ;; (define-key map "I" 'tpu-include) ; I
444 ;; (define-key map "K" 'tpu-kill-buffer) ; K
445 (define-key map "L" 'tpu-what-line) ; L
446 ;; (define-key map "M" 'buffer-menu) ; M
447 ;; (define-key map "N" 'tpu-next-file-buffer) ; N
448 ;; (define-key map "O" 'occur) ; O
449 (define-key map "P" 'lpr-buffer) ; P
450 ;; (define-key map "Q" 'tpu-quit) ; Q
451 ;; (define-key map "R" 'tpu-toggle-rectangle) ; R
452 ;; (define-key map "S" 'replace) ; S
453 ;; (define-key map "T" 'tpu-line-to-top-of-window) ; T
454 ;; (define-key map "U" 'undo) ; U
455 ;; (define-key map "V" 'tpu-version) ; V
456 ;; (define-key map "W" 'save-buffer) ; W
457 ;; (define-key map "X" 'tpu-save-all-buffers-kill-emacs) ; X
458 ;; (define-key map "Y" 'copy-region-as-kill) ; Y
459 ;; (define-key map "Z" 'suspend-emacs) ; Z
460 (define-key map "[" 'blink-matching-open) ; [
461 ;; (define-key map "\\" nil) ; \
462 (define-key map "]" 'blink-matching-open) ; ]
463 (define-key map "^" 'tpu-add-at-bol) ; ^
464 (define-key map "_" 'split-window-vertically) ; -
465 (define-key map "`" 'what-line) ; `
466 (define-key map "a" 'tpu-toggle-newline-and-indent) ; a
467 (define-key map "b" 'tpu-next-buffer) ; b
468 (define-key map "c" 'repeat-complex-command) ; c
469 (define-key map "d" 'shell-command) ; d
470 (define-key map "e" 'tpu-exit) ; e
471 (define-key map "f" 'tpu-cursor-free-mode) ; f
472 (define-key map "g" 'tpu-get) ; g
473 ;; (define-key map "h" nil) ; h
474 (define-key map "i" 'tpu-include) ; i
475 (define-key map "k" 'tpu-kill-buffer) ; k
476 (define-key map "l" 'goto-line) ; l
477 (define-key map "m" 'buffer-menu) ; m
478 (define-key map "n" 'tpu-next-file-buffer) ; n
479 (define-key map "o" 'occur) ; o
480 (define-key map "p" 'lpr-region) ; p
481 (define-key map "q" 'tpu-quit) ; q
482 (define-key map "r" 'tpu-toggle-rectangle) ; r
483 (define-key map "s" 'replace) ; s
484 (define-key map "t" 'tpu-line-to-top-of-window) ; t
485 (define-key map "u" 'undo) ; u
486 (define-key map "v" 'tpu-version) ; v
487 (define-key map "w" 'save-buffer) ; w
488 (define-key map "x" 'tpu-save-all-buffers-kill-emacs) ; x
489 (define-key map "y" 'copy-region-as-kill) ; y
490 (define-key map "z" 'suspend-emacs) ; z
491 ;; (define-key map "{" nil) ; {
492 (define-key map "|" 'split-window-horizontally) ; |
493 ;; (define-key map "}" nil) ; }
494 (define-key map "~" 'exchange-point-and-mark) ; ~
495 (define-key map "\177" 'delete-window) ; <X]
497 "Maps the function keys on the VT100 keyboard preceded by PF1.
498 GOLD is the ASCII 7-bit escape sequence <ESC>OP.")
499 (define-obsolete-variable-alias 'GOLD-map 'tpu-gold-map "23.1")
501 (defvar tpu-global-map
502 (let ((map (make-sparse-keymap)))
504 ;; Previously defined in CSI-map. We now presume that term/*.el does
505 ;; its job to map the escape sequence to the right key-symbol.
506 (define-key map [find] 'tpu-search) ; Find
507 (define-key map [insert] 'tpu-paste) ; Insert Here
508 (define-key map [delete] 'tpu-cut) ; Remove
509 (define-key map [select] 'tpu-select) ; Select
510 (define-key map [prior] 'tpu-scroll-window-down) ; Prev Screen
511 (define-key map [next] 'tpu-scroll-window-up) ; Next Screen
513 ;; (define-key map [f1] nil) ; F1
514 ;; (define-key map [f2] nil) ; F2
515 ;; (define-key map [f3] nil) ; F3
516 ;; (define-key map [f4] nil) ; F4
517 ;; (define-key map [f5] nil) ; F5
518 ;; (define-key map [f6] nil) ; F6
519 ;; (define-key map [f7] nil) ; F7
520 ;; (define-key map [f8] nil) ; F8
521 ;; (define-key map [f9] nil) ; F9
522 (define-key map [f10] 'tpu-exit) ; F10
523 (define-key map [f11] 'tpu-insert-escape) ; F11 (ESC)
524 (define-key map [f12] 'tpu-next-beginning-of-line) ; F12 (BS)
525 (define-key map [f13] 'tpu-delete-previous-word) ; F13 (LF)
526 (define-key map [f14] 'tpu-toggle-overwrite-mode) ; F14
527 (define-key map [help] 'tpu-help) ; HELP
528 (define-key map [menu] 'execute-extended-command) ; DO
529 (define-key map [f17] 'tpu-goto-breadcrumb) ; F17
530 ;; (define-key map [f18] nil) ; F18
531 ;; (define-key map [f19] nil) ; F19
532 ;; (define-key map [f20] nil) ; F20
535 ;; Previously defined in SS3-map. We now presume that term/*.el does
536 ;; its job to map the escape sequence to the right key-symbol.
537 (define-key map [kp-f1] tpu-gold-map) ; GOLD map
539 (define-key map [up] 'tpu-previous-line
) ; up
540 (define-key map
[down] 'tpu-next-line) ; down
541 (define-key map [right] 'tpu-forward-char) ; right
542 (define-key map [left] 'tpu-backward-char) ; left
544 (define-key map [kp-f2] 'tpu-help) ; PF2
545 (define-key map [kp-f3] 'tpu-search-again) ; PF3
546 (define-key map [kp-f4] 'tpu-delete-current-line) ; PF4
547 (define-key map [kp-0] 'tpu-line) ; KP0
548 (define-key map [kp-1] 'tpu-word) ; KP1
549 (define-key map [kp-2] 'tpu-end-of-line) ; KP2
550 (define-key map [kp-3] 'tpu-char) ; KP3
551 (define-key map [kp-4] 'tpu-advance-direction) ; KP4
552 (define-key map [kp-5] 'tpu-backup-direction) ; KP5
553 (define-key map [kp-6] 'tpu-cut) ; KP6
554 (define-key map [kp-7] 'tpu-page) ; KP7
555 (define-key map [kp-8] 'tpu-scroll-window) ; KP8
556 (define-key map [kp-9] 'tpu-append-region) ; KP9
557 (define-key map [kp-subtract] 'tpu-delete-current-word) ; KP-
558 (define-key map [kp-separator] 'tpu-delete-current-char) ; KP,
559 (define-key map [kp-decimal] 'tpu-select) ; KP.
560 (define-key map [kp-enter] 'newline) ; KPenter
563 "TPU-edt global keymap.")
569 (defvar tpu-last-replaced-text ""
570 "Last text deleted by a TPU-edt replace command.")
571 (defvar tpu-last-deleted-region ""
572 "Last text deleted by a TPU-edt remove command.")
573 (defvar tpu-last-deleted-lines ""
574 "Last text deleted by a TPU-edt line-delete command.")
575 (defvar tpu-last-deleted-words ""
576 "Last text deleted by a TPU-edt word-delete command.")
577 (defvar tpu-last-deleted-char ""
578 "Last character deleted by a TPU-edt character-delete command.")
580 (defvar tpu-searching-forward t
581 "If non-nil, TPU-edt is searching in the forward direction.")
582 (defvar tpu-search-last-string ""
583 "Last text searched for by the TPU-edt search commands.")
584 (defvar tpu-search-overlay (make-overlay 1 1)
585 "Search highlight overlay.")
586 (overlay-put tpu-search-overlay 'face 'bold)
588 (defvar tpu-replace-overlay (make-overlay 1 1)
589 "Replace highlight overlay.")
590 (overlay-put tpu-replace-overlay 'face 'highlight)
592 (defvar tpu-regexp-p nil
593 "If non-nil, TPU-edt uses regexp search and replace routines.")
594 (defvar tpu-rectangular-p nil
595 "If non-nil, TPU-edt removes and inserts rectangles.")
596 (defvar tpu-advance t
597 "True when TPU-edt is operating in the forward direction.")
598 (defvar tpu-reverse nil
599 "True when TPU-edt is operating in the backward direction.")
600 (defvar tpu-control-keys nil
601 "If non-nil, control keys are set to perform TPU functions.")
602 (defvar tpu-xkeys-file nil
603 "File containing TPU-edt X key map.")
605 (defvar tpu-rectangle-string nil
606 "Mode line string to identify rectangular mode.")
607 (defvar tpu-direction-string nil
608 "Mode line string to identify current direction.")
610 (defvar tpu-add-at-bol-hist nil
611 "History variable for tpu-edt-add-at-bol function.")
612 (defvar tpu-add-at-eol-hist nil
613 "History variable for tpu-edt-add-at-eol function.")
614 (defvar tpu-regexp-prompt-hist nil
615 "History variable for search and replace functions.")
619 ;;; Buffer Local Variables
621 (defvar tpu-newline-and-indent-p nil
622 "If non-nil, Return produces a newline and indents.")
623 (make-variable-buffer-local 'tpu-newline-and-indent-p)
625 (defvar tpu-newline-and-indent-string nil
626 "Mode line string to identify AutoIndent mode.")
627 (make-variable-buffer-local 'tpu-newline-and-indent-string)
629 (defvar tpu-saved-delete-func nil
630 "Saved value of the delete key.")
631 (make-variable-buffer-local 'tpu-saved-delete-func)
633 (defvar tpu-buffer-local-map nil
634 "TPU-edt buffer local key map.")
635 (make-variable-buffer-local 'tpu-buffer-local-map)
639 ;;; Mode Line - Modify the mode line to show the following
642 ;;; o Direction of motion.
643 ;;; o Active rectangle mode.
644 ;;; o Active auto indent mode.
646 (defvar tpu-original-mm-alist minor-mode-alist)
648 (defvar tpu-mark-flag "")
649 (make-variable-buffer-local 'tpu-mark-flag)
651 (defun tpu-set-mode-line (for-tpu)
652 "Set ``minor-mode-alist'' for TPU-edt, or reset it to default Emacs."
653 (let ((entries '((tpu-newline-and-indent-p tpu-newline-and-indent-string)
654 (tpu-rectangular-p tpu-rectangle-string)
655 (tpu-direction-string tpu-direction-string)
656 (tpu-mark-flag tpu-mark-flag))))
657 (dolist (entry entries)
659 (add-to-list 'minor-mode-alist entry)
660 (setq minor-mode-alist (remove entry minor-mode-alist))))))
662 (defun tpu-update-mode-line nil
663 "Make sure mode-line in the current buffer reflects all changes."
664 (setq tpu-mark-flag (if transient-mark-mode "" (if (tpu-mark) " @" " ")))
665 (force-mode-line-update))
667 (cond ((featurep 'xemacs)
668 (add-hook 'zmacs-deactivate-region-hook 'tpu-update-mode-line)
669 (add-hook 'zmacs-activate-region-hook 'tpu-update-mode-line))
671 (add-hook 'activate-mark-hook 'tpu-update-mode-line)
672 (add-hook 'deactivate-mark-hook 'tpu-update-mode-line)))
680 ;;; Used in: Replace, Substitute, Store-Text, Cut/Remove,
681 ;;; Append, and Change-Case
683 (defvar tpu-match-beginning-mark (make-marker))
684 (defvar tpu-match-end-mark (make-marker))
686 (defun tpu-set-match nil
687 "Set markers at match beginning and end."
688 ;; Add one to beginning mark so it stays with the first character of
689 ;; the string even if characters are added just before the string.
690 (setq tpu-match-beginning-mark (copy-marker (match-beginning 0) t))
691 (setq tpu-match-end-mark (copy-marker (match-end 0))))
693 (defun tpu-unset-match nil
694 "Unset match beginning and end markers."
695 (set-marker tpu-match-beginning-mark nil)
696 (set-marker tpu-match-end-mark nil))
698 (defun tpu-match-beginning nil
699 "Returns the location of the last match beginning."
700 (marker-position tpu-match-beginning-mark))
702 (defun tpu-match-end nil
703 "Returns the location of the last match end."
704 (marker-position tpu-match-end-mark))
706 (defun tpu-check-match nil
707 "Returns t if point is between tpu-match markers.
708 Otherwise sets the tpu-match markers to nil and returns nil."
709 ;; make sure 1- marker is in this buffer
710 ;; 2- point is at or after beginning marker
711 ;; 3- point is before ending marker, or in the case of
712 ;; zero length regions (like bol, or eol) that the
713 ;; beginning, end, and point are equal.
715 (equal (marker-buffer tpu-match-beginning-mark) (current-buffer))
716 (>= (point) (marker-position tpu-match-beginning-mark))
718 (< (point) (marker-position tpu-match-end-mark))
719 (and (= (marker-position tpu-match-beginning-mark)
720 (marker-position tpu-match-end-mark))
721 (= (marker-position tpu-match-end-mark) (point))))) t)
723 (tpu-unset-match) nil)))
725 (defun tpu-show-match-markers nil
726 "Show the values of the match markers."
728 (if (markerp tpu-match-beginning-mark)
729 (message "(%s, %s) in %s -- current %s in %s"
730 (marker-position tpu-match-beginning-mark)
731 (marker-position tpu-match-end-mark)
732 (marker-buffer tpu-match-end-mark)
733 (point) (current-buffer))))
739 (defun tpu-caar (thingy) (car (car thingy)))
740 (defun tpu-cadr (thingy) (car (cdr thingy)))
742 (defvar zmacs-regions)
745 "TPU-edt version of the mark function.
746 Return the appropriate value of the mark for the current
748 (cond ((featurep 'xemacs) (mark (not zmacs-regions)))
749 (t (and mark-active (mark (not transient-mark-mode))))))
751 (defun tpu-set-mark (pos)
752 "TPU-edt version of the `set-mark' function.
753 Sets the mark at POS and activates the region according to the
754 current version of Emacs."
756 ;; We use a separate `if' for the fboundp so the byte-compiler notices it
757 ;; and doesn't complain about the subsequent call.
758 (if (fboundp 'zmacs-activate-region) (if pos (zmacs-activate-region))))
760 (defun tpu-string-prompt (prompt history-symbol)
761 "Read a string with PROMPT."
762 (read-from-minibuffer prompt nil nil nil history-symbol))
764 (defvar tpu-last-answer nil "Most recent response to tpu-y-or-n-p.")
766 (defun tpu-y-or-n-p (prompt &optional not-yes)
767 "Prompt for a y or n answer with positive default.
768 Optional second argument NOT-YES changes default to negative.
769 Like Emacs `y-or-n-p', but also accepts space as y and DEL as n."
770 (message "%s[%s]" prompt (if not-yes "n" "y"))
774 (let ((ans (read-char)))
775 (cond ((or (= ans ?y) (= ans ?Y) (= ans ?\ ))
776 (setq tpu-last-answer t))
777 ((or (= ans ?n) (= ans ?N) (= ans ?\C-?))
778 (setq tpu-last-answer nil))
779 ((= ans ?\r) (setq tpu-last-answer (not not-yes)))
782 (message "Please answer y or n. %s[%s]"
783 prompt (if not-yes "n" "y")))))))
786 (defun tpu-local-set-key (key func)
787 "Replace a key in the TPU-edt local key map.
788 Create the key map if necessary."
789 (cond ((not (keymapp tpu-buffer-local-map))
790 (setq tpu-buffer-local-map (if (current-local-map)
791 (copy-keymap (current-local-map))
792 (make-sparse-keymap)))
793 (use-local-map tpu-buffer-local-map)))
794 (local-set-key key func))
796 (defun tpu-current-line ()
797 "Return the vertical position of point in the selected window.
798 Top line is 0. Counts each text line only once, even if it wraps."
800 (cdr (nth 6 (posn-at-point)))
801 (if (eq (window-start) (point)) 0
802 (1- (count-screen-lines (window-start) (point) 'count-final-newline)))))
808 (defvar tpu-breadcrumb-plist nil
809 "The set of user-defined markers (breadcrumbs), as a plist.")
811 (defun tpu-drop-breadcrumb (num)
812 "Drops a breadcrumb that can be returned to later with goto-breadcrumb."
814 (put tpu-breadcrumb-plist num (list (current-buffer) (point)))
815 (message "Mark %d set." num))
817 (defun tpu-goto-breadcrumb (num)
818 "Returns to a breadcrumb set with drop-breadcrumb."
820 (cond ((get tpu-breadcrumb-plist num)
821 (switch-to-buffer (car (get tpu-breadcrumb-plist num)))
822 (goto-char (tpu-cadr (get tpu-breadcrumb-plist num)))
823 (message "mark %d found." num))
825 (message "mark %d not found." num))))
831 (defun tpu-change-case (num)
832 "Change the case of the character under the cursor or region.
833 Accepts a prefix argument of the number of characters to invert."
836 (let ((beg (region-beginning)) (end (region-end)))
838 (funcall (if (= (downcase (char-after beg)) (char-after beg))
839 'upcase-region 'downcase-region)
844 (let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
846 (funcall (if (= (downcase (char-after beg)) (char-after beg))
847 'upcase-region 'downcase-region)
853 (funcall (if (= (downcase (following-char)) (following-char))
854 'upcase-region 'downcase-region)
855 (point) (1+ (point)))
856 (forward-char (if tpu-reverse -1 1))
857 (setq num (1- num))))))
859 (defun tpu-fill (num)
860 "Fill paragraph or marked region.
861 With argument, fill and justify."
864 (fill-region (point) (tpu-mark) num)
867 (fill-paragraph num))))
869 (defun tpu-version nil
870 "Print the TPU-edt version number."
873 "TPU-edt version %s by Rob Riepel (riepel@networking.stanford.edu)"
876 (defun tpu-reset-screen-size (height width)
877 "Sets the screen size."
878 (interactive "nnew screen height: \nnnew screen width: ")
879 (set-frame-height (selected-frame) height)
880 (set-frame-width (selected-frame) width))
882 (defun tpu-toggle-newline-and-indent nil
883 "Toggle between 'newline and indent' and 'simple newline'."
885 (cond (tpu-newline-and-indent-p
886 (setq tpu-newline-and-indent-string "")
887 (setq tpu-newline-and-indent-p nil)
888 (tpu-local-set-key "\C-m" 'newline))
890 (setq tpu-newline-and-indent-string " AutoIndent")
891 (setq tpu-newline-and-indent-p t)
892 (tpu-local-set-key "\C-m" 'newline-and-indent)))
893 (tpu-update-mode-line)
895 (message "Carriage return inserts a newline%s"
896 (if tpu-newline-and-indent-p " and indents." "."))))
898 (defun tpu-spell-check nil
899 "Checks the spelling of the region, or of the entire buffer if no
902 (cond (tpu-have-ispell
903 (if (tpu-mark) (ispell-region (tpu-mark) (point)) (ispell-buffer)))
905 (if (tpu-mark) (spell-region (tpu-mark) (point)) (spell-buffer))))
906 (if (tpu-mark) (tpu-unselect t)))
908 (defun tpu-toggle-overwrite-mode nil
909 "Switches in and out of overwrite mode"
911 (cond (overwrite-mode
912 (tpu-local-set-key "\177" tpu-saved-delete-func)
915 (setq tpu-saved-delete-func (local-key-binding "\177"))
916 (tpu-local-set-key "\177" 'picture-backward-clear-column)
917 (overwrite-mode 1))))
919 (defun tpu-special-insert (num)
920 "Insert a character or control code according to
921 its ASCII decimal value."
923 (if overwrite-mode (delete-char 1))
924 (insert (if num num 0)))
926 (defun tpu-quoted-insert (num)
927 "Read next input character and insert it.
928 This is useful for inserting control characters."
930 (let ((char (read-char)) )
931 (if overwrite-mode (delete-char num))
932 (insert-char char num)))
936 ;;; TPU line-mode commands
938 (defun tpu-include (file)
939 "TPU-like include file"
940 (interactive "fInclude file: ")
941 (insert-file-contents file)
944 (defun tpu-get (file)
946 (interactive "FFile to get: ")
947 (find-file file find-file-wildcards))
949 (defun tpu-what-line nil
950 "Tells what line the point is on,
951 and the total number of lines in the buffer."
954 (message "You are at the End of Buffer. The last line is %d."
955 (count-lines 1 (point-max)))
956 (let* ((cur (count-lines 1 (1+ (point))))
957 (max (count-lines 1 (point-max)))
958 (pct (/ (* 100 (+ cur (/ max 200))) max)))
959 (message "You are on line %d out of %d (%d%%)." cur max pct))))
962 "Exit the way TPU does, save current buffer and ask about others."
964 (if (not (eq (recursion-depth) 0))
965 (exit-recursive-edit)
966 (progn (save-buffer) (save-buffers-kill-emacs))))
969 "Quit the way TPU does, ask to make sure changes should be abandoned."
971 (let ((list (buffer-list))
973 (while (and list working)
974 (let ((buffer (car list)))
975 (if (and (buffer-file-name buffer) (buffer-modified-p buffer))
977 "Modifications will not be saved, continue quitting? ")
978 (kill-emacs t) (setq working nil)))
979 (setq list (cdr list))))
980 (if working (kill-emacs t))))
984 ;;; Command and Function Aliases
987 (define-minor-mode tpu-edt-mode
990 (if tpu-edt-mode (tpu-edt-on) (tpu-edt-off)))
992 (defalias 'TPU-EDT-MODE 'tpu-edt-mode)
995 (defalias 'tpu-edt 'tpu-edt-on)
996 (defalias 'TPU-EDT 'tpu-edt-on)
998 ;; Note: The following functions have no `tpu-' prefix. This is unavoidable.
999 ;; The real TPU/edt editor has interactive commands with these names,
1000 ;; so tpu-edt.el users expect things like M-x exit RET and M-x help RET
1001 ;; to work. Therefore it really is necessary to define these functions,
1002 ;; even in cases where they redefine existing Emacs functions.
1004 (defalias 'exit 'tpu-exit)
1005 (defalias 'EXIT 'tpu-exit)
1007 (defalias 'Get 'tpu-get)
1008 (defalias 'GET 'tpu-get)
1010 (defalias 'include 'tpu-include)
1011 (defalias 'INCLUDE 'tpu-include)
1013 (defalias 'quit 'tpu-quit)
1014 (defalias 'QUIT 'tpu-quit)
1016 (defalias 'spell 'tpu-spell-check)
1017 (defalias 'SPELL 'tpu-spell-check)
1019 (defalias 'what\ line 'tpu-what-line)
1020 (defalias 'WHAT\ LINE 'tpu-what-line)
1022 (defalias 'replace 'tpu-lm-replace)
1023 (defalias 'REPLACE 'tpu-lm-replace)
1025 (defalias 'help 'tpu-help)
1026 (defalias 'HELP 'tpu-help)
1028 (defalias 'set\ cursor\ free 'tpu-set-cursor-free)
1029 (defalias 'SET\ CURSOR\ FREE 'tpu-set-cursor-free)
1031 (defalias 'set\ cursor\ bound 'tpu-set-cursor-bound)
1032 (defalias 'SET\ CURSOR\ BOUND 'tpu-set-cursor-bound)
1034 (defalias 'set\ scroll\ margins 'tpu-set-scroll-margins)
1035 (defalias 'SET\ SCROLL\ MARGINS 'tpu-set-scroll-margins)
1037 ;; Real TPU error messages end in periods.
1038 ;; Define this to avoid openly flouting Emacs coding standards.
1039 (defalias 'tpu-error 'error)
1045 (defvar tpu-help-keypad-map "\f
1046 _______________________ _______________________________
1047 | HELP | Do | | | | | |
1048 |KeyDefs| | | | | | |
1049 |_______|_______________| |_______|_______|_______|_______|
1050 _______________________ _______________________________
1051 | Find |Insert |Remove | | Gold | HELP |FndNxt | Del L |
1052 | | |Sto Tex| | key |E-Help | Find |Undel L|
1053 |_______|_______|_______| |_______|_______|_______|_______|
1054 |Select |Pre Scr|Nex Scr| | Page | Sect |Append | Del W |
1055 | Reset |Pre Win|Nex Win| | Do | Fill |Replace|Undel W|
1056 |_______|_______|_______| |_______|_______|_______|_______|
1057 |Move up| |Forward|Reverse|Remove | Del C |
1058 | Top | |Bottom | Top |Insert |Undel C|
1059 _______|_______|_______ |_______|_______|_______|_______|
1060 |Mov Lef|Mov Dow|Mov Rig| | Word | EOL | Char | |
1061 |StaOfLi|Bottom |EndOfLi| |ChngCas|Del EOL|SpecIns| Enter |
1062 |_______|_______|_______| |_______|_______|_______| |
1063 | Line |Select | Subs |
1064 | Open Line | Reset | |
1065 |_______________|_______|_______|
1068 (defvar tpu-help-text "
1069 \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
1073 ^A toggle insert and overwrite
1077 ^G Cancel current operation
1078 ^H beginning of line
1079 ^J delete previous word
1082 ^L insert page break
1083 ^R remember (during learn), re-center
1085 ^U delete to beginning of line
1090 ^X^X exchange point and mark - useful for checking region boundaries
1092 \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
1093 Gold-<key> Functions
1095 B Next Buffer - display the next buffer (all buffers)
1096 C Recall - edit and possibly repeat previous commands
1097 E Exit - save current buffer and ask about others
1098 G Get - load a file into a new edit buffer
1100 I Include - include a file in this buffer
1101 K Kill Buffer - abandon edits and delete buffer
1102 M Buffer Menu - display a list of all buffers
1103 N Next File Buffer - display next buffer containing a file
1105 O Occur - show following lines containing REGEXP
1106 Q Quit - exit without saving anything
1107 R Toggle rectangular mode for remove and insert
1108 S Search and substitute - line mode REPLACE command
1110 ^T Toggle control key bindings between TPU and Emacs
1111 U Undo - undo the last edit
1112 W Write - save current buffer
1113 X Exit - save all modified buffers and exit
1115 \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
1117 More extensive documentation on TPU-edt can be found in the `Commentary'
1118 section of tpu-edt.el. This section can be accessed through the standard
1119 Emacs help facility using the `p' option. Once you exit TPU-edt Help, one
1120 of the following key sequences is sure to get you there.
1122 ^h p if you're not yet using TPU-edt
1123 Gold-PF2 p if you're using TPU-edt
1125 Alternatively, fire up Emacs help from the command prompt, with
1127 M-x help-for-help <CR> p <CR>
1129 Where `M-x' might be any of `Gold-KP7', 'Do', or 'ESC-x'.
1131 When you successfully invoke this part of the Emacs help facility, you
1132 will see a buffer named `*Finder*' listing a number of topics. Look for
1133 tpu-edt under `emulations'.
1135 \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
1137 *** No more help, use P to view previous screen")
1139 (defvar tpu-help-enter (format "%s" "\eOM")) ; tpu-help enter key symbol
1140 (defvar tpu-help-return (format "%s" "\r")) ; tpu-help enter key symbol
1141 (defvar tpu-help-N "N") ; tpu-help "N" symbol
1142 (defvar tpu-help-n "n") ; tpu-help "n" symbol
1143 (defvar tpu-help-P "P") ; tpu-help "P" symbol
1144 (defvar tpu-help-p "p") ; tpu-help "p" symbol
1147 "Display TPU-edt help."
1149 ;; Save current window configuration
1150 (save-window-excursion
1151 ;; Create and fill help buffer if necessary
1152 (if (not (get-buffer "*TPU-edt Help*"))
1153 (progn (generate-new-buffer "*TPU-edt Help*")
1154 (switch-to-buffer "*TPU-edt Help*")
1155 (insert tpu-help-keypad-map)
1156 (insert tpu-help-text)
1157 (setq buffer-read-only t)))
1159 ;; Display the help buffer
1160 (switch-to-buffer "*TPU-edt Help*")
1161 (delete-other-windows)
1162 (tpu-move-to-beginning)
1164 (tpu-line-to-top-of-window)
1166 ;; Prompt for keys to describe, based on screen state (split/not split)
1167 (let ((key nil) (fkey nil) (split nil))
1168 (while (not (equal tpu-help-return fkey))
1172 "Press the key you want help on (RET=exit, ENTER=redisplay, N=next, P=prev): "))
1175 "Press the key you want help on (RET to exit, N next screen, P prev screen): ")))
1177 ;; Process the read key
1179 ;; ENTER - Display just the help window
1180 ;; N or n - Next help or describe-key screen
1181 ;; P or p - Previous help or describe-key screen
1182 ;; RETURN - Exit from TPU-help
1183 ;; default - describe the key
1185 (setq fkey (format "%s" key))
1186 (cond ((equal tpu-help-enter fkey)
1188 (delete-other-windows))
1189 ((or (equal tpu-help-N fkey) (equal tpu-help-n fkey))
1192 (scroll-other-window 8)
1197 (tpu-line-to-top-of-window))))
1198 ((or (equal tpu-help-P fkey) (equal tpu-help-p fkey))
1201 (scroll-other-window -8)
1207 (tpu-line-to-top-of-window))))
1208 ((not (equal tpu-help-return fkey))
1211 ;; If the key is undefined, leave the
1212 ;; message in the mini-buffer for 3 seconds
1213 (if (not (key-binding key)) (sit-for 3))))))))
1219 (defun tpu-insert-escape nil
1220 "Inserts an escape character, and so becomes the escape-key alias."
1224 (defun tpu-insert-formfeed nil
1225 "Inserts a formfeed character."
1233 (defvar tpu-saved-control-r nil "Saved value of Control-r.")
1235 (defun tpu-end-define-macro-key (key)
1236 "Ends the current macro definition"
1237 (interactive "kPress the key you want to use to do what was just learned: ")
1239 (global-set-key key last-kbd-macro)
1240 (global-set-key "\C-r" tpu-saved-control-r))
1242 (defun tpu-define-macro-key nil
1243 "Bind a set of keystrokes to a single key, or key combination."
1245 (setq tpu-saved-control-r (global-key-binding "\C-r"))
1246 (global-set-key "\C-r" 'tpu-end-define-macro-key)
1247 (start-kbd-macro nil))
1251 ;;; Buffers and Windows
1253 (defun tpu-kill-buffer nil
1254 "Kills the current buffer. If tpu-kill-buffers-silently is non-nil,
1255 kills modified buffers without asking."
1257 (if tpu-kill-buffers-silently (set-buffer-modified-p nil))
1258 (kill-buffer (current-buffer)))
1260 (defun tpu-save-all-buffers-kill-emacs nil
1261 "Save all buffers and exit Emacs."
1263 (let ((delete-old-versions t))
1264 (save-buffers-kill-emacs t)))
1266 (defun tpu-write-current-buffers nil
1267 "Save all modified buffers without exiting."
1269 (save-some-buffers t))
1271 (defun tpu-next-buffer nil
1272 "Go to next buffer in ring."
1274 (switch-to-buffer (car (reverse (buffer-list)))))
1276 (defun tpu-next-file-buffer nil
1277 "Go to next buffer in ring that is visiting a file or directory."
1279 (let ((list (tpu-make-file-buffer-list (buffer-list))))
1280 (setq list (delq (current-buffer) list))
1281 (if (not list) (tpu-error "No other buffers."))
1282 (switch-to-buffer (car (reverse list)))))
1284 (defun tpu-make-file-buffer-list (buffer-list)
1285 "Returns names from BUFFER-LIST excluding those beginning with a space or star."
1286 (delq nil (mapcar '(lambda (b)
1287 (if (or (= (aref (buffer-name b) 0) ? )
1288 (= (aref (buffer-name b) 0) ?*)) nil b))
1291 (defun tpu-next-window nil
1292 "Move to the next window."
1294 (if (one-window-p) (message "There is only one window on screen.")
1297 (defun tpu-previous-window nil
1298 "Move to the previous window."
1300 (if (one-window-p) (message "There is only one window on screen.")
1301 (select-window (previous-window))))
1307 (defun tpu-toggle-regexp nil
1308 "Switches in and out of regular expression search and replace mode."
1310 (setq tpu-regexp-p (not tpu-regexp-p))
1312 (and (interactive-p)
1313 (message "Regular expression search and substitute %sabled."
1314 (if tpu-regexp-p "en" "dis"))))
1316 (defun tpu-regexp-prompt (prompt)
1317 "Read a string, adding 'RE' to the prompt if tpu-regexp-p is set."
1318 (let ((re-prompt (concat (if tpu-regexp-p "RE ") prompt)))
1319 (read-from-minibuffer re-prompt nil nil nil 'tpu-regexp-prompt-hist)))
1321 (defun tpu-search-highlight nil
1322 (if (tpu-check-match)
1323 (move-overlay tpu-search-overlay
1324 (tpu-match-beginning) (tpu-match-end) (current-buffer))
1325 (unless (equal (overlay-start tpu-search-overlay)
1326 (overlay-end tpu-search-overlay))
1327 (move-overlay tpu-search-overlay 1 1 (current-buffer)))))
1329 (defun tpu-search nil
1330 "Search for a string or regular expression.
1331 The search is performed in the current direction."
1334 (tpu-search-internal ""))
1336 (defun tpu-search-forward nil
1337 "Search for a string or regular expression.
1338 The search is begins in the forward direction."
1340 (setq tpu-searching-forward t)
1342 (tpu-search-internal ""))
1344 (defun tpu-search-reverse nil
1345 "Search for a string or regular expression.
1346 The search is begins in the reverse direction."
1348 (setq tpu-searching-forward nil)
1350 (tpu-search-internal ""))
1352 (defun tpu-search-again nil
1353 "Search for the same string or regular expression as last time.
1354 The search is performed in the current direction."
1356 (tpu-search-internal tpu-search-last-string))
1358 ;; tpu-set-search defines the search functions used by the TPU-edt internal
1359 ;; search function. It should be called whenever the direction changes, or
1360 ;; the regular expression mode is turned on or off. It can also be called
1361 ;; to ensure that the next search will be in the current direction. It is
1364 ;; tpu-advance tpu-backup
1365 ;; tpu-toggle-regexp tpu-toggle-search-direction (t)
1366 ;; tpu-search tpu-lm-replace
1367 ;; tpu-search-forward (t) tpu-search-reverse (t)
1368 ;; tpu-search-forward-exit (t) tpu-search-backward-exit (t)
1370 (defun tpu-set-search (&optional arg)
1371 "Set the search functions and set the search direction to the current
1372 direction. If an argument is specified, don't set the search direction."
1373 (if (not arg) (setq tpu-searching-forward tpu-advance))
1374 (cond (tpu-searching-forward
1376 (fset 'tpu-emacs-search 're-search-forward)
1377 (fset 'tpu-emacs-rev-search 're-search-backward))
1379 (fset 'tpu-emacs-search 'search-forward)
1380 (fset 'tpu-emacs-rev-search 'search-backward))))
1383 (fset 'tpu-emacs-search 're-search-backward)
1384 (fset 'tpu-emacs-rev-search 're-search-forward))
1386 (fset 'tpu-emacs-search 'search-backward)
1387 (fset 'tpu-emacs-rev-search 'search-forward))))))
1389 (defun tpu-search-internal (pat &optional quiet)
1390 "Search for a string or regular expression."
1391 (setq tpu-search-last-string
1392 (if (not (string= "" pat)) pat (tpu-regexp-prompt "Search: ")))
1397 (let ((case-fold-search
1398 (and case-fold-search (tpu-check-search-case tpu-search-last-string))))
1400 (cond ((tpu-emacs-search tpu-search-last-string nil t)
1401 (tpu-set-match) (goto-char (tpu-match-beginning)))
1404 (tpu-adjust-search t)
1405 (let ((found nil) (pos nil))
1407 (let ((tpu-searching-forward (not tpu-searching-forward)))
1409 (setq found (tpu-emacs-rev-search tpu-search-last-string nil t))
1410 (setq pos (match-beginning 0))))
1414 (cond ((tpu-y-or-n-p
1415 (format "Found in %s direction. Go there? "
1416 (if tpu-searching-forward "reverse" "forward")))
1417 (goto-char pos) (tpu-set-match)
1418 (tpu-toggle-search-direction))))
1423 "%sSearch failed: \"%s\""
1424 (if tpu-regexp-p "RE " "") tpu-search-last-string)))))))))
1426 (defalias 'tpu-search-internal-core (symbol-function 'tpu-search-internal))
1428 (defun tpu-check-search-case (string)
1429 "Returns t if string contains upper case."
1430 ;; if using regexp, eliminate upper case forms (\B \W \S.)
1432 (let ((pat (copy-sequence string)) (case-fold-search nil) (pos 0))
1433 (while (setq pos (string-match "\\\\\\\\" pat)) (aset pat (+ 1 pos) ?.))
1434 (while (setq pos (string-match "\\\\B" pat)) (aset pat (+ 1 pos) ?.))
1435 (while (setq pos (string-match "\\\\W" pat)) (aset pat (+ 1 pos) ?.))
1436 (while (setq pos (string-match "\\\\S." pat))
1437 (aset pat (+ 1 pos) ?.) (aset pat (+ 2 pos) ?.))
1438 (string-equal pat (downcase pat)))
1439 (string-equal string (downcase string))))
1441 (defun tpu-adjust-search (&optional arg)
1442 "For forward searches, move forward a character before searching,
1443 and backward a character after a failed search. Arg means end of search."
1444 (if tpu-searching-forward
1445 (cond (arg (if (not (bobp)) (forward-char -1)))
1446 (t (if (not (eobp)) (forward-char 1))))))
1448 (defun tpu-toggle-search-direction nil
1449 "Toggle the TPU-edt search direction.
1450 Used for reversing a search in progress."
1452 (setq tpu-searching-forward (not tpu-searching-forward))
1454 (and (interactive-p)
1455 (message "Searching %sward."
1456 (if tpu-searching-forward "for" "back"))))
1458 (defun tpu-search-forward-exit nil
1459 "Set search direction forward and exit minibuffer."
1461 (setq tpu-searching-forward t)
1465 (defun tpu-search-backward-exit nil
1466 "Set search direction backward and exit minibuffer."
1468 (setq tpu-searching-forward nil)
1474 ;;; Select / Unselect
1476 (defun tpu-select (&optional quiet)
1477 "Sets the mark to define one end of a region."
1480 (tpu-unselect quiet))
1482 (tpu-set-mark (point))
1483 (tpu-update-mode-line)
1484 (if (not quiet) (message "Move the text cursor to select text.")))))
1486 (defun tpu-unselect (&optional quiet)
1487 "Removes the mark to unselect the current region."
1490 (setq mark-ring nil)
1492 (tpu-update-mode-line)
1493 (if (not quiet) (message "Selection canceled.")))
1499 (defun tpu-toggle-rectangle nil
1500 "Toggle rectangular mode for remove and insert."
1502 (setq tpu-rectangular-p (not tpu-rectangular-p))
1503 (setq tpu-rectangle-string (if tpu-rectangular-p " Rect" ""))
1504 (tpu-update-mode-line)
1505 (and (interactive-p)
1506 (message "Rectangular cut and paste %sabled."
1507 (if tpu-rectangular-p "en" "dis"))))
1509 (defun tpu-arrange-rectangle nil
1510 "Adjust point and mark to mark upper left and lower right
1511 corners of a rectangle."
1512 (let ((mc (current-column))
1513 (pc (progn (exchange-point-and-mark) (current-column))))
1515 (cond ((> (point) (tpu-mark)) ; point on lower line
1516 (cond ((> pc mc) ; point @ lower-right
1517 (exchange-point-and-mark)) ; point -> upper-left
1519 (t ; point @ lower-left
1520 (move-to-column mc t) ; point -> lower-right
1521 (exchange-point-and-mark) ; point -> upper-right
1522 (move-to-column pc t)))) ; point -> upper-left
1524 (t ; point on upper line
1525 (cond ((> pc mc) ; point @ upper-right
1526 (move-to-column mc t) ; point -> upper-left
1527 (exchange-point-and-mark) ; point -> lower-left
1528 (move-to-column pc t) ; point -> lower-right
1529 (exchange-point-and-mark))))))) ; point -> upper-left
1531 (defun tpu-cut-text nil
1532 "Delete the selected region.
1533 The text is saved for the tpu-paste command."
1536 (cond (tpu-rectangular-p
1537 (tpu-arrange-rectangle)
1538 (picture-clear-rectangle (point) (tpu-mark) (not overwrite-mode))
1541 (setq tpu-last-deleted-region
1542 (buffer-substring (tpu-mark) (point)))
1543 (delete-region (tpu-mark) (point))
1546 (let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
1547 (setq tpu-last-deleted-region (buffer-substring beg end))
1548 (delete-region beg end)
1551 (tpu-error "No selection active."))))
1553 (defun tpu-store-text nil
1554 "Copy the selected region to the cut buffer without deleting it.
1555 The text is saved for the tpu-paste command."
1558 (cond (tpu-rectangular-p
1560 (tpu-arrange-rectangle)
1561 (setq picture-killed-rectangle
1562 (extract-rectangle (point) (tpu-mark))))
1565 (setq tpu-last-deleted-region
1566 (buffer-substring (tpu-mark) (point)))
1569 (setq tpu-last-deleted-region
1570 (buffer-substring (tpu-match-beginning) (tpu-match-end)))
1573 (tpu-error "No selection active."))))
1575 (defun tpu-cut (arg)
1576 "Copy selected region to the cut buffer. In the absence of an
1577 argument, delete the selected region too."
1579 (if arg (tpu-store-text) (tpu-cut-text)))
1581 (defun tpu-append-region (arg)
1582 "Append selected region to the tpu-cut buffer. In the absence of an
1583 argument, delete the selected region too."
1586 (let ((beg (region-beginning)) (end (region-end)))
1587 (setq tpu-last-deleted-region
1588 (concat tpu-last-deleted-region
1589 (buffer-substring beg end)))
1590 (if (not arg) (delete-region beg end))
1593 (let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
1594 (setq tpu-last-deleted-region
1595 (concat tpu-last-deleted-region
1596 (buffer-substring beg end)))
1597 (if (not arg) (delete-region beg end))
1600 (tpu-error "No selection active."))))
1602 (defun tpu-delete-current-line (num)
1603 "Delete one or specified number of lines after point.
1604 This includes the newline character at the end of each line.
1605 They are saved for the TPU-edt undelete-lines command."
1607 (let ((beg (point)))
1609 (if (not (eq (preceding-char) ?\n))
1611 (setq tpu-last-deleted-lines
1612 (buffer-substring beg (point)))
1613 (delete-region beg (point))))
1615 (defun tpu-delete-to-eol (num)
1616 "Delete text up to end of line.
1617 With argument, delete up to the Nth line-end past point.
1618 They are saved for the TPU-edt undelete-lines command."
1620 (let ((beg (point)))
1623 (setq tpu-last-deleted-lines
1624 (buffer-substring beg (point)))
1625 (delete-region beg (point))))
1627 (defun tpu-delete-to-bol (num)
1628 "Delete text back to beginning of line.
1629 With argument, delete up to the Nth line-end past point.
1630 They are saved for the TPU-edt undelete-lines command."
1632 (let ((beg (point)))
1633 (tpu-next-beginning-of-line num)
1634 (setq tpu-last-deleted-lines
1635 (buffer-substring (point) beg))
1636 (delete-region (point) beg)))
1638 (defun tpu-delete-current-word (num)
1639 "Delete one or specified number of words after point.
1640 They are saved for the TPU-edt undelete-words command."
1642 (let ((beg (point)))
1643 (tpu-forward-to-word num)
1644 (setq tpu-last-deleted-words
1645 (buffer-substring beg (point)))
1646 (delete-region beg (point))))
1648 (defun tpu-delete-previous-word (num)
1649 "Delete one or specified number of words before point.
1650 They are saved for the TPU-edt undelete-words command."
1652 (let ((beg (point)))
1653 (tpu-backward-to-word num)
1654 (setq tpu-last-deleted-words
1655 (buffer-substring (point) beg))
1656 (delete-region beg (point))))
1658 (defun tpu-delete-current-char (num)
1659 "Delete one or specified number of characters after point. The last
1660 character deleted is saved for the TPU-edt undelete-char command."
1662 (while (and (> num 0) (not (eobp)))
1663 (setq tpu-last-deleted-char (char-after (point)))
1664 (cond (overwrite-mode
1665 (picture-clear-column 1)
1669 (setq num (1- num))))
1673 ;;; Undelete / Paste
1675 (defun tpu-paste (num)
1676 "Insert the last region or rectangle of killed text.
1677 With argument reinserts the text that many times."
1680 (cond (tpu-rectangular-p
1681 (let ((beg (point)))
1683 (picture-yank-rectangle (not overwrite-mode))
1687 (insert tpu-last-deleted-region)))
1688 (setq num (1- num))))
1690 (defun tpu-undelete-lines (num)
1691 "Insert lines deleted by last TPU-edt line-deletion command.
1692 With argument reinserts lines that many times."
1694 (let ((beg (point)))
1696 (insert tpu-last-deleted-lines)
1697 (setq num (1- num)))
1700 (defun tpu-undelete-words (num)
1701 "Insert words deleted by last TPU-edt word-deletion command.
1702 With argument reinserts words that many times."
1704 (let ((beg (point)))
1706 (insert tpu-last-deleted-words)
1707 (setq num (1- num)))
1710 (defun tpu-undelete-char (num)
1711 "Insert character deleted by last TPU-edt character-deletion command.
1712 With argument reinserts the character that many times."
1715 (if overwrite-mode (prog1 (forward-char -1) (delete-char 1)))
1716 (insert tpu-last-deleted-char)
1718 (setq num (1- num))))
1722 ;;; Replace and Substitute
1724 (defun tpu-replace nil
1725 "Replace the selected region with the contents of the cut buffer."
1728 (let ((beg (region-beginning)) (end (region-end)))
1729 (setq tpu-last-replaced-text (buffer-substring beg end))
1730 (delete-region beg end)
1731 (insert tpu-last-deleted-region)
1734 (let ((beg (tpu-match-beginning)) (end (tpu-match-end)))
1735 (setq tpu-last-replaced-text (buffer-substring beg end))
1736 (replace-match tpu-last-deleted-region
1737 (not case-replace) (not tpu-regexp-p))
1740 (tpu-error "No selection active."))))
1742 (defun tpu-substitute (num)
1743 "Replace the selected region with the contents of the cut buffer, and
1744 repeat most recent search. A numeric argument serves as a repeat count.
1745 A negative argument means replace all occurrences of the search string."
1747 (cond ((or (tpu-mark) (tpu-check-match))
1748 (while (and (not (= num 0)) (or (tpu-mark) (tpu-check-match)))
1749 (let ((beg (point)))
1751 (if tpu-searching-forward (forward-char -1) (goto-char beg))
1752 (if (= num 1) (tpu-search-internal tpu-search-last-string)
1753 (tpu-search-internal-core tpu-search-last-string)))
1754 (setq num (1- num))))
1756 (tpu-error "No selection active."))))
1758 (defun tpu-lm-replace (from to)
1759 "Interactively search for OLD-string and substitute NEW-string."
1760 (interactive (list (tpu-regexp-prompt "Old String: ")
1761 (tpu-regexp-prompt "New String: ")))
1763 (let ((doit t) (strings 0))
1765 ;; Can't replace null strings
1766 (if (string= "" from) (tpu-error "No string to replace."))
1768 ;; Find the first occurrence
1770 (tpu-search-internal from t)
1772 ;; Loop on replace question - yes, no, all, last, or quit.
1774 (if (not (tpu-check-match)) (setq doit nil)
1776 (move-overlay tpu-replace-overlay
1777 (tpu-match-beginning) (tpu-match-end) (current-buffer))
1778 (message "Replace? Type Yes, No, All, Last, or Quit: ")
1779 (let ((ans (read-char)))
1781 (cond ((or (= ans ?y) (= ans ?Y) (= ans ?\r) (= ans ?\ ))
1782 (let ((beg (point)))
1783 (replace-match to (not case-replace) (not tpu-regexp-p))
1784 (setq strings (1+ strings))
1785 (if tpu-searching-forward (forward-char -1) (goto-char beg)))
1786 (tpu-search-internal from t))
1788 ((or (= ans ?n) (= ans ?N) (= ans ?\C-?))
1789 (tpu-search-internal from t))
1791 ((or (= ans ?a) (= ans ?A))
1793 (let ((beg (point)))
1794 (replace-match to (not case-replace) (not tpu-regexp-p))
1795 (setq strings (1+ strings))
1796 (if tpu-searching-forward (forward-char -1) (goto-char beg)))
1797 (tpu-search-internal-core from t)
1798 (while (tpu-check-match)
1799 (let ((beg (point)))
1800 (replace-match to (not case-replace) (not tpu-regexp-p))
1801 (setq strings (1+ strings))
1802 (if tpu-searching-forward (forward-char -1) (goto-char beg)))
1803 (tpu-search-internal-core from t)))
1806 ((or (= ans ?l) (= ans ?L))
1807 (let ((beg (point)))
1808 (replace-match to (not case-replace) (not tpu-regexp-p))
1809 (setq strings (1+ strings))
1810 (if tpu-searching-forward (forward-char -1) (goto-char beg)))
1813 ((or (= ans ?q) (= ans ?Q))
1815 (setq doit nil)))))))
1817 (move-overlay tpu-replace-overlay 1 1 (current-buffer))
1818 (message "Replaced %s occurrence%s." strings (if (not (= 1 strings)) "s" ""))))
1820 (defun tpu-emacs-replace (&optional dont-ask)
1821 "A TPU-edt interface to the Emacs replace functions. If TPU-edt is
1822 currently in regular expression mode, the Emacs regular expression
1823 replace functions are used. If an argument is supplied, replacements
1824 are performed without asking. Only works in forward direction."
1827 (setq current-prefix-arg nil)
1829 (if tpu-regexp-p 'replace-regexp 'replace-string)))
1832 (if tpu-regexp-p 'query-replace-regexp 'query-replace)))))
1834 (defun tpu-add-at-bol (text)
1835 "Add text to the beginning of each line in a region,
1836 or each line in the entire buffer if no region is selected."
1838 (list (tpu-string-prompt "String to add: " 'tpu-add-at-bol-hist)))
1839 (if (string= "" text) (tpu-error "No string specified."))
1842 (if (> (point) (tpu-mark)) (exchange-point-and-mark))
1843 (while (and (< (point) (tpu-mark)) (re-search-forward "^" (tpu-mark) t))
1844 (if (< (point) (tpu-mark)) (replace-match text))))
1848 (goto-char (point-min))
1849 (while (and (re-search-forward "^" nil t) (not (eobp)))
1850 (replace-match text))))))
1852 (defun tpu-add-at-eol (text)
1853 "Add text to the end of each line in a region,
1854 or each line of the entire buffer if no region is selected."
1856 (list (tpu-string-prompt "String to add: " 'tpu-add-at-eol-hist)))
1857 (if (string= "" text) (tpu-error "No string specified."))
1860 (if (> (point) (tpu-mark)) (exchange-point-and-mark))
1861 (while (< (point) (tpu-mark))
1863 (if (<= (point) (tpu-mark)) (insert text))
1868 (goto-char (point-min))
1870 (end-of-line) (insert text) (forward-line))))))
1872 (defun tpu-trim-line-ends nil
1873 "Removes trailing whitespace from every line in the buffer."
1877 (goto-char (point-min))
1878 (while (re-search-forward "[ \t][ \t]*$" nil t)
1879 (delete-region (match-beginning 0) (match-end 0))))))
1883 ;;; Movement by character
1885 (defun tpu-char (num)
1886 "Move to the next character in the current direction.
1887 A repeat count means move that many characters."
1889 (if tpu-advance (tpu-forward-char num) (tpu-backward-char num)))
1891 (defun tpu-forward-char (num)
1892 "Move right ARG characters (left if ARG is negative)."
1896 (defun tpu-backward-char (num)
1897 "Move left ARG characters (right if ARG is negative)."
1899 (backward-char num))
1903 ;;; Movement by word
1905 (defvar tpu-word-separator-list '()
1906 "List of additional word separators.")
1907 (defvar tpu-skip-chars "^ \t"
1908 "Characters to skip when moving by word.
1909 Additional word separators are added to this string.")
1911 (defun tpu-word (num)
1912 "Move to the beginning of the next word in the current direction.
1913 A repeat count means move that many words."
1915 (if tpu-advance (tpu-forward-to-word num) (tpu-backward-to-word num)))
1917 (defun tpu-forward-to-word (num)
1918 "Move forward until encountering the beginning of a word.
1919 With argument, do this that many times."
1921 (while (and (> num 0) (not (eobp)))
1922 (let* ((beg (point))
1923 (end (prog2 (end-of-line) (point) (goto-char beg))))
1926 ((memq (char-after (point)) tpu-word-separator-list)
1928 (skip-chars-forward " \t" end))
1930 (skip-chars-forward tpu-skip-chars end)
1931 (skip-chars-forward " \t" end))))
1932 (setq num (1- num))))
1934 (defun tpu-backward-to-word (num)
1935 "Move backward until encountering the beginning of a word.
1936 With argument, do this that many times."
1938 (while (and (> num 0) (not (bobp)))
1939 (let* ((beg (point))
1940 (end (prog2 (beginning-of-line) (point) (goto-char beg))))
1943 ((memq (char-after (1- (point))) tpu-word-separator-list)
1946 (skip-chars-backward " \t" end)
1947 (skip-chars-backward tpu-skip-chars end)
1948 (if (and (not (bolp)) (= ? (char-syntax (char-after (point)))))
1949 (forward-char -1)))))
1950 (setq num (1- num))))
1952 (defun tpu-add-word-separators (separators)
1953 "Add new word separators for TPU-edt word commands."
1954 (interactive "sSeparators: ")
1955 (let* ((n 0) (length (length separators)))
1957 (let ((char (aref separators n))
1958 (ss (substring separators n (1+ n))))
1959 (cond ((not (memq char tpu-word-separator-list))
1960 (setq tpu-word-separator-list
1961 (append ss tpu-word-separator-list))
1963 (setq tpu-skip-chars (concat tpu-skip-chars "\\-")))
1965 (setq tpu-skip-chars (concat tpu-skip-chars "\\\\")))
1967 (setq tpu-skip-chars (concat tpu-skip-chars "\\^")))
1969 (setq tpu-skip-chars (concat tpu-skip-chars ss))))))
1972 (defun tpu-reset-word-separators nil
1973 "Reset word separators to default value."
1975 (setq tpu-word-separator-list nil)
1976 (setq tpu-skip-chars "^ \t"))
1978 (defun tpu-set-word-separators (separators)
1979 "Set new word separators for TPU-edt word commands."
1980 (interactive "sSeparators: ")
1981 (tpu-reset-word-separators)
1982 (tpu-add-word-separators separators))
1986 ;;; Movement by line
1988 (defun tpu-next-line (num)
1990 Prefix argument serves as a repeat count."
1993 (setq this-command 'next-line))
1995 (defun tpu-previous-line (num)
1996 "Move to previous line.
1997 Prefix argument serves as a repeat count."
2000 (setq this-command 'previous-line))
2002 (defun tpu-next-beginning-of-line (num)
2003 "Move to beginning of line; if at beginning, move to beginning of next line.
2004 Accepts a prefix argument for the number of lines to move."
2007 (forward-visible-line (- 1 num)))
2009 (defun tpu-end-of-line (num)
2010 "Move to the next end of line in the current direction.
2011 A repeat count means move that many lines."
2013 (if tpu-advance (tpu-next-end-of-line num) (tpu-previous-end-of-line num)))
2015 (defun tpu-next-end-of-line (num)
2016 "Move to end of line; if at end, move to end of next line.
2017 Accepts a prefix argument for the number of lines to move."
2022 (defun tpu-previous-end-of-line (num)
2024 Accepts a prefix argument for the number of lines to move."
2026 (end-of-line (- 1 num)))
2028 (defun tpu-current-end-of-line nil
2029 "Move point to end of current line."
2031 (let ((beg (point)))
2033 (if (= beg (point)) (message "You are already at the end of a line."))))
2035 (defun tpu-line (num)
2036 "Move to the beginning of the next line in the current direction.
2037 A repeat count means move that many lines."
2039 (if tpu-advance (tpu-forward-line num) (tpu-backward-line num)))
2041 (defun tpu-forward-line (num)
2042 "Move to beginning of next line.
2043 Prefix argument serves as a repeat count."
2047 (defun tpu-backward-line (num)
2048 "Move to beginning of previous line.
2049 Prefix argument serves as repeat count."
2051 (or (bolp) (>= 0 num) (setq num (- num 1)))
2052 (forward-line (- num)))
2056 ;;; Movement by paragraph
2058 (defun tpu-paragraph (num)
2059 "Move to the next paragraph in the current direction.
2060 A repeat count means move that many paragraphs."
2063 (tpu-next-paragraph num) (tpu-previous-paragraph num)))
2065 (defun tpu-next-paragraph (num)
2066 "Move to beginning of the next paragraph.
2067 Accepts a prefix argument for the number of paragraphs."
2070 (while (and (not (eobp)) (> num 0))
2071 (if (re-search-forward "^[ \t]*$" nil t)
2072 (if (re-search-forward "[^ \t\n]" nil t)
2073 (goto-char (match-beginning 0))
2074 (goto-char (point-max))))
2075 (setq num (1- num)))
2076 (beginning-of-line))
2079 (defun tpu-previous-paragraph (num)
2080 "Move to beginning of previous paragraph.
2081 Accepts a prefix argument for the number of paragraphs."
2084 (while (and (not (bobp)) (> num 0))
2085 (if (not (and (re-search-backward "^[ \t]*$" nil t)
2086 (re-search-backward "[^ \t\n]" nil t)
2087 (re-search-backward "^[ \t]*$" nil t)
2088 (progn (re-search-forward "[^ \t\n]" nil t)
2089 (goto-char (match-beginning 0)))))
2090 (goto-char (point-min)))
2091 (setq num (1- num)))
2092 (beginning-of-line))
2096 ;;; Movement by page
2098 (defun tpu-page (num)
2099 "Move to the next page in the current direction.
2100 A repeat count means move that many pages."
2102 (if tpu-advance (forward-page num) (backward-page num))
2103 (if (eobp) (recenter -1)))
2107 ;;; Scrolling and movement within the buffer
2109 (defun tpu-scroll-window (num)
2110 "Scroll the display to the next section in the current direction.
2111 A repeat count means scroll that many sections."
2113 (if tpu-advance (tpu-scroll-window-up num) (tpu-scroll-window-down num)))
2115 (defun tpu-scroll-window-down (num)
2116 "Scroll the display down to the next section.
2117 A repeat count means scroll that many sections."
2119 (let* ((beg (tpu-current-line))
2120 (height (1- (window-height)))
2121 (lines (* num (/ (* height tpu-percent-scroll) 100))))
2122 (line-move (- lines))
2123 (if (> lines beg) (recenter 0))))
2125 (defun tpu-scroll-window-up (num)
2126 "Scroll the display up to the next section.
2127 A repeat count means scroll that many sections."
2129 (let* ((beg (tpu-current-line))
2130 (height (1- (window-height)))
2131 (lines (* num (/ (* height tpu-percent-scroll) 100))))
2133 (if (>= (+ lines beg) height) (recenter -1))))
2135 (defun tpu-pan-right (num)
2136 "Pan right tpu-pan-columns (16 by default).
2137 Accepts a prefix argument for the number of tpu-pan-columns to scroll."
2139 (scroll-left (* tpu-pan-columns num)))
2141 (defun tpu-pan-left (num)
2142 "Pan left tpu-pan-columns (16 by default).
2143 Accepts a prefix argument for the number of tpu-pan-columns to scroll."
2145 (scroll-right (* tpu-pan-columns num)))
2147 (defun tpu-move-to-beginning nil
2148 "Move cursor to the beginning of buffer, but don't set the mark."
2150 (goto-char (point-min)))
2152 (defun tpu-move-to-end nil
2153 "Move cursor to the end of buffer, but don't set the mark."
2155 (goto-char (point-max))
2158 (defun tpu-goto-percent (perc)
2159 "Move point to ARG percentage of the buffer."
2160 (interactive "NGoto-percentage: ")
2161 (if (or (> perc 100) (< perc 0))
2162 (tpu-error "Percentage %d out of range 0 < percent < 100." perc)
2163 (goto-char (/ (* (point-max) perc) 100))))
2165 (defun tpu-beginning-of-window nil
2166 "Move cursor to top of window."
2168 (move-to-window-line 0))
2170 (defun tpu-end-of-window nil
2171 "Move cursor to bottom of window."
2173 (move-to-window-line -1))
2175 (defun tpu-line-to-bottom-of-window nil
2176 "Move the current line to the bottom of the window."
2180 (defun tpu-line-to-top-of-window nil
2181 "Move the current line to the top of the window."
2189 (defun tpu-advance-direction nil
2190 "Set TPU Advance mode so keypad commands move forward."
2192 (setq tpu-direction-string " Advance")
2193 (setq tpu-advance t)
2194 (setq tpu-reverse nil)
2196 (tpu-update-mode-line))
2198 (defun tpu-backup-direction nil
2199 "Set TPU Backup mode so keypad commands move backward."
2201 (setq tpu-direction-string " Reverse")
2202 (setq tpu-advance nil)
2203 (setq tpu-reverse t)
2205 (tpu-update-mode-line))
2207 (defun tpu-toggle-direction nil
2208 "Change the current TPU direction."
2210 (if tpu-advance (tpu-backup-direction) (tpu-advance-direction)))
2214 ;;; Minibuffer map additions to make KP_enter = RET
2216 ;; Standard Emacs settings under xterm in function-key-map map
2217 ;; "\eOM" to [kp-enter] and [kp-enter] to RET, but since the output of the map
2218 ;; is not fed back into the map, the key stays as kp-enter :-(.
2219 (define-key minibuffer-local-map [kp-enter] 'exit-minibuffer)
2220 ;; These are not necessary because they are inherited.
2221 ;; (define-key minibuffer-local-ns-map [kp-enter] 'exit-minibuffer)
2222 ;; (define-key minibuffer-local-completion-map [kp-enter] 'exit-minibuffer)
2223 (define-key minibuffer-local-must-match-map [kp-enter] 'minibuffer-complete-and-exit)
2227 ;;; Minibuffer map additions to set search direction
2229 (define-key minibuffer-local-map [kp-4] 'tpu-search-forward-exit) ;KP4
2230 (define-key minibuffer-local-map [kp-5] 'tpu-search-backward-exit) ;KP5
2234 ;;; Functions to set, reset, and toggle the control key bindings
2237 (defvar tpu-control-keys-map
2238 (let ((map (make-sparse-keymap)))
2239 (define-key map "\C-\\" 'quoted-insert) ; ^\
2240 (define-key map "\C-a" 'tpu-toggle-overwrite-mode) ; ^A
2241 (define-key map "\C-b" 'repeat-complex-command) ; ^B
2242 (define-key map "\C-e" 'tpu-current-end-of-line) ; ^E
2243 (define-key map "\C-h" 'tpu-next-beginning-of-line) ; ^H (BS)
2244 (define-key map "\C-j" 'tpu-delete-previous-word) ; ^J (LF)
2245 (define-key map "\C-k" 'tpu-define-macro-key) ; ^K
2246 (define-key map "\C-l" 'tpu-insert-formfeed) ; ^L (FF)
2247 (define-key map "\C-r" 'recenter) ; ^R
2248 (define-key map "\C-u" 'tpu-delete-to-bol) ; ^U
2249 (define-key map "\C-v" 'tpu-quoted-insert) ; ^V
2250 (define-key map "\C-w" 'redraw-display) ; ^W
2251 (define-key map "\C-z" 'tpu-exit) ; ^Z
2254 (defun tpu-set-control-keys ()
2255 "Set control keys to TPU style functions."
2256 (tpu-reset-control-keys 'tpu))
2258 (defun tpu-reset-control-keys (tpu-style)
2259 "Set control keys to TPU or Emacs style functions."
2260 (let ((parent (keymap-parent tpu-global-map)))
2262 (if (eq parent tpu-control-keys-map)
2263 nil ;All done already.
2264 ;; Insert tpu-control-keys-map in the global map.
2265 (set-keymap-parent tpu-control-keys-map parent)
2266 (set-keymap-parent tpu-global-map tpu-control-keys-map))
2267 (if (not (eq parent tpu-control-keys-map))
2268 nil ;All done already.
2269 ;; Remove tpu-control-keys-map from the global map.
2270 (set-keymap-parent tpu-global-map (keymap-parent parent))
2271 (set-keymap-parent tpu-control-keys-map nil)))
2272 (setq tpu-control-keys tpu-style)))
2274 (defun tpu-toggle-control-keys nil
2275 "Toggles control key bindings between TPU-edt and Emacs."
2277 (tpu-reset-control-keys (not tpu-control-keys))
2278 (and (interactive-p)
2279 (message "Control keys function with %s bindings."
2280 (if tpu-control-keys "TPU-edt" "Emacs"))))
2284 ;;; Emacs version 19 minibuffer history support
2286 (defun tpu-next-history-element (n)
2287 "Insert the next element of the minibuffer history into the minibuffer."
2289 (next-history-element n)
2290 (goto-char (point-max)))
2292 (defun tpu-previous-history-element (n)
2293 "Insert the previous element of the minibuffer history into the minibuffer."
2295 (previous-history-element n)
2296 (goto-char (point-max)))
2298 (defun tpu-arrow-history nil
2299 "Modify minibuffer maps to use arrows for history recall."
2301 (dolist (cur (where-is-internal 'tpu-previous-line))
2302 (define-key read-expression-map cur 'tpu-previous-history-element)
2303 (define-key minibuffer-local-map cur 'tpu-previous-history-element)
2304 ;; These are inherited anyway. --Stef
2305 ;; (define-key minibuffer-local-ns-map cur 'tpu-previous-history-element)
2306 ;; (define-key minibuffer-local-completion-map cur 'tpu-previous-history-element)
2307 ;; (define-key minibuffer-local-must-match-map cur 'tpu-previous-history-element)
2310 (dolist (cur (where-is-internal 'tpu-next-line))
2311 (define-key read-expression-map cur 'tpu-next-history-element)
2312 (define-key minibuffer-local-map cur 'tpu-next-history-element)
2313 ;; These are inherited anyway. --Stef
2314 ;; (define-key minibuffer-local-ns-map cur 'tpu-next-history-element)
2315 ;; (define-key minibuffer-local-completion-map cur 'tpu-next-history-element)
2316 ;; (define-key minibuffer-local-must-match-map cur 'tpu-next-history-element)
2321 ;;; Emacs version 19 X-windows key definition support
2323 (defun tpu-load-xkeys (file)
2324 "Load the TPU-edt X-windows key definitions FILE.
2325 If FILE is nil, try to load a default file. The default file names are
2326 `~/.tpu-lucid-keys' for Lucid emacs, and `~/.tpu-keys' for Emacs."
2327 (interactive "fX key definition file: ")
2329 (setq file (expand-file-name file)))
2331 (setq file (expand-file-name tpu-xkeys-file)))
2333 (setq file (convert-standard-filename
2334 (expand-file-name "~/.tpu-lucid-keys"))))
2336 (setq file (convert-standard-filename
2337 (expand-file-name "~/.tpu-keys")))
2338 (and (not (file-exists-p file))
2340 (convert-standard-filename
2341 (expand-file-name "~/.tpu-gnu-keys")))
2343 (convert-standard-filename
2344 (expand-file-name "~/.tpu-gnu-keys")) file))))
2345 (cond ((file-readable-p file)
2348 ;; FIXME: This used to force the user to build `file'. With the
2349 ;; new code, such a file is not even necessary, but we'll keep
2350 ;; a warning message.
2351 (message "%s not found: use tpu-mapper.el to create it"
2352 (abbreviate-file-name file)))))
2354 (defun tpu-copy-keyfile (oldname newname)
2355 "Copy the TPU-edt X key definitions file to the new default name."
2356 (interactive "fOld name: \nFNew name: ")
2357 (if (not (get-buffer "*TPU-Notice*")) (generate-new-buffer "*TPU-Notice*"))
2358 (set-buffer "*TPU-Notice*")
2363 The default name of the TPU-edt key definition file has changed
2364 from `~/.tpu-gnu-keys' to `~/.tpu-keys'. With your permission,
2365 your key definitions will be copied to the new file. If you'll
2366 never use older versions of Emacs, you can remove the old file.
2367 If the copy fails, you'll be asked if you want to create a new
2368 key definitions file. Do you want to copy your key definition
2371 (save-window-excursion
2372 (switch-to-buffer-other-window "*TPU-Notice*")
2373 (shrink-window-if-larger-than-buffer)
2374 (goto-char (point-min))
2376 (and (tpu-y-or-n-p "Copy key definitions to the new file now? ")
2377 (condition-case conditions
2378 (copy-file oldname newname)
2379 (tpu-error (message "Sorry, couldn't copy - %s." (cdr conditions)))))
2380 (kill-buffer "*TPU-Notice*")))
2382 (defvar tpu-edt-old-global-values nil)
2385 ;;; Start and Stop TPU-edt
2388 (defun tpu-edt-on ()
2389 "Turn on TPU/edt emulation."
2391 ;; To clean things up (and avoid cycles in the global map).
2393 ;; First, activate tpu-global-map, while protecting the original keymap.
2394 (set-keymap-parent tpu-global-map global-map)
2395 (setq global-map tpu-global-map)
2396 (use-global-map global-map)
2397 ;; Then do the normal TPU setup.
2398 (transient-mark-mode t)
2399 (add-hook 'post-command-hook 'tpu-search-highlight)
2400 (tpu-set-mode-line t)
2401 (tpu-advance-direction)
2402 ;; set page delimiter, display line truncation, and scrolling like TPU
2403 (dolist (varval '((page-delimiter . "\f")
2404 (truncate-lines . t)
2406 (push (cons (car varval) (default-value (car varval)))
2407 tpu-edt-old-global-values)
2408 (set-default (car varval) (cdr varval)))
2409 (tpu-set-control-keys)
2410 (and window-system (tpu-load-xkeys nil))
2412 ;; Then protect tpu-global-map from user modifications.
2413 (let ((map (make-sparse-keymap)))
2414 (set-keymap-parent map global-map)
2415 (setq global-map map)
2416 (use-global-map map))
2417 (setq tpu-edt-mode t))
2419 (defun tpu-edt-off ()
2420 "Turn off TPU/edt emulation. Note that the keypad is left on."
2422 (tpu-reset-control-keys nil)
2423 (remove-hook 'post-command-hook 'tpu-search-highlight)
2424 (tpu-set-mode-line nil)
2425 (while tpu-edt-old-global-values
2426 (let ((varval (pop tpu-edt-old-global-values)))
2427 (set-default (car varval) (cdr varval))))
2428 ;; Remove tpu-global-map from the global map.
2429 (let ((map global-map))
2431 (let ((parent (keymap-parent map)))
2432 (if (eq tpu-global-map parent)
2433 (set-keymap-parent map (keymap-parent parent))
2434 (setq map parent)))))
2435 (ignore-errors (ad-disable-regexp "\\`tpu-"))
2436 (setq tpu-edt-mode nil))
2439 ;;;### (autoloads (tpu-set-cursor-bound tpu-set-cursor-free tpu-set-scroll-margins
2440 ;;;;;; tpu-cursor-free-mode) "tpu-extras" "tpu-extras.el" "e0629234f1abe076917a303456b48329")
2441 ;;; Generated autoloads from tpu-extras.el
2443 (autoload 'tpu-cursor-free-mode "tpu-extras" "\
2444 Minor mode to allow the cursor to move freely about the screen.
2446 \(fn &optional ARG)" t nil)
2448 (autoload 'tpu-set-scroll-margins "tpu-extras" "\
2451 \(fn TOP BOTTOM)" t nil)
2453 (autoload 'tpu-set-cursor-free "tpu-extras" "\
2454 Allow the cursor to move freely about the screen.
2458 (autoload 'tpu-set-cursor-bound "tpu-extras" "\
2459 Constrain the cursor to the flow of the text.
2467 ;; arch-tag: f3dfe61c-2cbd-4f73-b9cc-eb215020b857
2468 ;;; tpu-edt.el ends here