mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-29 11:02:01 +00:00
470 lines
21 KiB
EmacsLisp
470 lines
21 KiB
EmacsLisp
;;; tpu-doc.el --- Documentation for TPU-edt
|
|
|
|
;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
|
|
|
|
;; Author: Rob Riepel <riepel@networking.stanford.edu>
|
|
;; Maintainer: Rob Riepel <riepel@networking.stanford.edu>
|
|
;; Keywords: emulations
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software; you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation; either version 2, or (at your option)
|
|
;; any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs; see the file COPYING. If not, write to
|
|
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
|
|
;; This is documentation for the TPU-edt editor for GNU emacs. Major
|
|
;; sections of this document are separated with lines that begin with
|
|
;; ";; %% <topic>", where <topic> is what is discussed in that section.
|
|
|
|
|
|
;; %% Contents
|
|
|
|
;; % Introduction
|
|
;; % Terminal Support
|
|
;; % X-windows Support
|
|
;; % Differences Between TPU-edt and the Real Thing
|
|
;; % Starting TPU-edt
|
|
;; % TPU-edt Default Editing Keypad, Control and Gold Key Bindings
|
|
;; % Optional TPU-edt Extensions
|
|
;; % Customizing TPU-edt using the Emacs Initialization File
|
|
;; % Compiling TPU-edt
|
|
;; % Regular expressions in TPU-edt
|
|
;; % Etcetera
|
|
|
|
|
|
;; %% Introduction
|
|
|
|
;; TPU-edt is based on tpu.el by Jeff Kowalski and Bob Covey. TPU-edt
|
|
;; endeavors to be even more like TPU's EDT emulation than the original
|
|
;; tpu.el. Considerable effort has been expended to that end. Still,
|
|
;; emacs is emacs and there are differences between TPU-edt and the
|
|
;; real thing. Please read the "Differences Between TPU-edt and the
|
|
;; Real Thing" and "Starting TPU-edt" sections before running TPU-edt.
|
|
|
|
|
|
;; %% Terminal Support
|
|
|
|
;; TPU-edt, like it's VMS cousin, works on VT-series terminals with
|
|
;; DEC style keyboards. VT terminal emulators, including xterm with
|
|
;; the appropriate key translations, work just fine too.
|
|
|
|
|
|
;; %% X-windows Support
|
|
|
|
;; Starting with version 19 of emacs, TPU-edt works with X-windows.
|
|
;; This is accomplished through a TPU-edt X keymap. The emacs lisp
|
|
;; program tpu-mapper.el creates this map and stores it in a file.
|
|
;; Tpu-mapper will be run automatically the first time you invoke
|
|
;; the X-windows version of emacs, or you can run it by hand. See
|
|
;; the commentary in tpu-mapper.el for details.
|
|
|
|
|
|
;; %% Differences Between TPU-edt and the Real Thing (not Coke (r))
|
|
|
|
;; Emacs (version 18.58) doesn't support text highlighting, so selected
|
|
;; regions are not shown in inverse video. Emacs uses the concept of
|
|
;; "the mark". The mark is set at one end of a selected region; the
|
|
;; cursor is at the other. The letter "M" appears in the mode line
|
|
;; when the mark is set. The native emacs command ^X^X (Control-X
|
|
;; twice) exchanges the cursor with the mark; this provides a handy
|
|
;; way to find the location of the mark.
|
|
|
|
;; In TPU the cursor can be either bound or free. Bound means the
|
|
;; cursor cannot wander outside the text of the file being edited.
|
|
;; Free means the arrow keys can move the cursor past the ends of
|
|
;; lines. Free is the default mode in TPU; bound is the only mode
|
|
;; in EDT. Bound is the only mode in the base version of TPU-edt;
|
|
;; optional extensions add an approximation of free mode.
|
|
|
|
;; Like TPU, emacs uses multiple buffers. Some buffers are used to
|
|
;; hold files you are editing; other "internal" buffers are used for
|
|
;; emacs' own purposes (like showing you help). Here are some commands
|
|
;; for dealing with buffers.
|
|
|
|
;; Gold-B moves to next buffer, including internal buffers
|
|
;; Gold-N moves to next buffer containing a file
|
|
;; Gold-M brings up a buffer menu (like TPU "show buffers")
|
|
|
|
;; Emacs is very fond of throwing up new windows. Dealing with all
|
|
;; these windows can be a little confusing at first, so here are a few
|
|
;; commands to that may help:
|
|
|
|
;; Gold-Next_Scr moves to the next window on the screen
|
|
;; Gold-Prev_Scr moves to the previous window on the screen
|
|
;; Gold-TAB also moves to the next window on the screen
|
|
|
|
;; Control-x 1 deletes all but the current window
|
|
;; Control-x 0 deletes the current window
|
|
|
|
;; Note that the buffers associated with deleted windows still exist!
|
|
|
|
;; Like TPU, TPU-edt has a "command" function, invoked with Gold-KP7 or
|
|
;; Do. Most of the commands available are emacs commands. Some TPU
|
|
;; commands are available, they are: replace, exit, quit, include, and
|
|
;; Get (unfortunately, "get" is an internal emacs function, so we are
|
|
;; stuck with "Get" - to make life easier, Get is available as Gold-g).
|
|
|
|
;; Support for recall of commands, file names, and search strings was
|
|
;; added to emacs in version 19. For version 18 of emacs, optional
|
|
;; extensions are available to add this recall capability (see "Optional
|
|
;; TPU-edt Extensions" below). The history of strings recalled in both
|
|
;; versions of emacs differs slightly from TPU/edt, but it is still very
|
|
;; convenient.
|
|
|
|
;; Help is available! The traditional help keys (Help and PF2) display
|
|
;; a three page help file showing the default keypad layout, control key
|
|
;; functions, and Gold key functions. Pressing any key inside of help
|
|
;; splits the screen and prints a description of the function of the
|
|
;; pressed key. Gold-PF2 invokes the native emacs help, with it's
|
|
;; zillions of options. Gold-Help shows all the current key bindings.
|
|
|
|
;; Thanks to emacs, TPU-edt has some extensions that may make your life
|
|
;; easier, or at least more interesting. For example, Gold-r toggles
|
|
;; TPU-edt rectangular mode. In rectangular mode, Remove and Insert work
|
|
;; on rectangles. Likewise, Gold-* toggles TPU-edt regular expression
|
|
;; mode. In regular expression mode Find, Find Next, and the line-mode
|
|
;; replace command work with regular expressions. [A regular expression
|
|
;; is a pattern that denotes a set of strings; like VMS wildcards.]
|
|
|
|
;; Emacs also gives TPU-edt the undo and occur functions. Undo does
|
|
;; what it says; it undoes the last change. Multiple undos in a row
|
|
;; undo multiple changes. For your convenience, undo is available on
|
|
;; Gold-u. Occur shows all the lines containing a specific string in
|
|
;; another window. Moving to that window, and typing ^C^C (Control-C
|
|
;; twice) on a particular line moves you back to the original window
|
|
;; at that line. Occur is on Gold-o.
|
|
|
|
;; Finally, as you edit, remember that all the power of emacs is at
|
|
;; your disposal. It really is a fantastic tool. You may even want to
|
|
;; take some time and read the emacs tutorial; perhaps not to learn the
|
|
;; native emacs key bindings, but to get a feel for all the things
|
|
;; emacs can do for you. The emacs tutorial is available from the
|
|
;; emacs help function: "Gold-PF2 t"
|
|
|
|
|
|
;; %% Starting TPU-edt
|
|
|
|
;; In order to use TPU-edt, the TPU-edt editor definitions, contained
|
|
;; in tpu-edt.el, need to be loaded when emacs is run. This can be
|
|
;; done in a couple of ways. The first is by explicitly requesting
|
|
;; loading of the TPU-edt emacs definition file on the command line:
|
|
|
|
;; prompt> emacs -l /path/to/definitions/tpu-edt.el
|
|
|
|
;; If TPU-edt is installed on your system, that is, if tpu-edt.el is in
|
|
;; a directory like /usr/local/emacs/lisp, along with dozens of other
|
|
;; .el files, you should be able to use the command:
|
|
|
|
;; prompt> emacs -l tpu-edt
|
|
|
|
;; If you like TPU-edt and want to use it all the time, you can load
|
|
;; the TPU-edt definitions using the emacs initialization file, .emacs.
|
|
;; Simply create a .emacs file in your home directory containing the
|
|
;; line:
|
|
|
|
;; (load "/path/to/definitions/tpu-edt")
|
|
|
|
;; or, if (as above) TPU-edt is installed on your system:
|
|
|
|
;; (load "tpu-edt")
|
|
|
|
;; Once TPU-edt has been loaded, you will be using an editor with the
|
|
;; interface shown in the next section (A section that is suitable for
|
|
;; cutting out of this document and pasting next to your terminal!).
|
|
|
|
|
|
;; %% TPU-edt Default Editing Keypad, Control and Gold Key Bindings
|
|
;;
|
|
;; _______________________ _______________________________
|
|
;; | 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 | |
|
|
;; |_______________|_______|_______|
|
|
;; Control Characters
|
|
;;
|
|
;; ^A toggle insert and overwrite ^L insert page break
|
|
;; ^B recall ^R remember, re-center
|
|
;; ^E end of line ^U delete to beginning of line
|
|
;; ^G cancel current operation ^V quote
|
|
;; ^H beginning of line ^W refresh
|
|
;; ^J delete previous word ^Z exit
|
|
;; ^K learn ^X^X exchange point and mark
|
|
;;
|
|
;;
|
|
;; Gold-<key> Functions
|
|
;; -----------------------------------------------------------------
|
|
;; W Write - save current buffer
|
|
;; K Kill buffer - abandon edits and delete buffer
|
|
;;
|
|
;; E Exit - save current buffer and ask about others
|
|
;; X eXit - save all modified buffers and exit
|
|
;; Q Quit - exit without saving anything
|
|
;;
|
|
;; G Get - load a file into a new edit buffer
|
|
;; I Include - include a file in this buffer
|
|
;;
|
|
;; B next Buffer - display the next buffer (all buffers)
|
|
;; N Next file buffer - display next buffer containing a file
|
|
;; M buffer Menu - display a list of all buffers
|
|
;;
|
|
;; U Undo - undo the last edit
|
|
;; C Recall - edit and possibly repeat previous commands
|
|
;;
|
|
;; O Occur - show following lines containing REGEXP
|
|
;; S Search and substitute - line mode REPLACE command
|
|
;;
|
|
;; ? Spell check - check spelling in a region or entire buffer
|
|
;;
|
|
;; R Toggle Rectangular mode for remove and insert
|
|
;; * Toggle regular expression mode for search and substitute
|
|
;;
|
|
;; V Show TPU-edt version
|
|
;; -----------------------------------------------------------------
|
|
|
|
|
|
;; %% Optional TPU-edt Extensions
|
|
|
|
;; Several optional packages have been included in this distribution
|
|
;; of TPU-edt. The following is a brief description of each package.
|
|
;; See the {package}.el file for more detailed information and usage
|
|
;; instructions.
|
|
|
|
;; tpu-extras - TPU/edt scroll margins and free cursor mode.
|
|
;; tpu-recall - String, file name, and command history.
|
|
;; vt-control - VTxxx terminal width and keypad controls.
|
|
|
|
;; Packages are normally loaded from the emacs initialization file
|
|
;; (discussed below). If a package is not installed in the emacs
|
|
;; lisp directory, it can be loaded by specifying the complete path
|
|
;; to the package file. However, it is preferable to modify the
|
|
;; emacs load-path variable to include the directory where packages
|
|
;; are stored. This way, packages can be loaded by name, just as if
|
|
;; they were installed. The first part of the sample .emacs file
|
|
;; below shows how to make such a modification.
|
|
|
|
|
|
;; %% Customizing TPU-edt using the Emacs Initialization File
|
|
|
|
;; .emacs - a sample emacs initialization file
|
|
|
|
;; This is a sample emacs initialization file. It shows how to invoke
|
|
;; TPU-edt, and how to customize it.
|
|
|
|
;; The load-path is where emacs looks for files to fulfill load requests.
|
|
;; If TPU-edt is not installed in a standard emacs directory, the load-path
|
|
;; should be updated to include the directory where the TPU-edt files are
|
|
;; stored. Modify and un-comment the following section if TPU-ed is not
|
|
;; installed on your system - be sure to leave the double quotes!
|
|
|
|
;; (setq load-path
|
|
;; (append (list (expand-file-name "/path/to/tpu-edt/files"))
|
|
;; load-path))
|
|
|
|
;; Load TPU-edt
|
|
(load "tpu-edt")
|
|
|
|
;; Load the optional goodies - scroll margins, free cursor mode, command
|
|
;; and string recall. But don't complain if the file aren't available.
|
|
(load "tpu-extras" t)
|
|
(load "tpu-recall" t)
|
|
|
|
;; Uncomment this line to set scroll margins 10% (top) and 15% (bottom).
|
|
;(and (fboundp 'tpu-set-scroll-margins) (tpu-set-scroll-margins "10%" "15%"))
|
|
|
|
;; Load the vtxxx terminal control functions, but don't complain if
|
|
;; if the file is not found.
|
|
(load "vt-control" t)
|
|
|
|
;; TPU-edt treats words like EDT; here's how to add word separators.
|
|
;; Note that backslash (\) and double quote (") are quoted with '\'.
|
|
(tpu-add-word-separators "]\\[-_,.\"=+()'/*#:!&;$")
|
|
|
|
;; Emacs is happy to save files without a final newline; other Unix programs
|
|
;; hate that! This line will make sure that files end with newlines.
|
|
(setq require-final-newline t)
|
|
|
|
;; Emacs has the ability to automatically run code embedded in files
|
|
;; you edit. This line makes emacs ask if you want to run the code.
|
|
(if tpu-emacs19-p (setq enable-local-variables "ask")
|
|
(setq inhibit-local-variables t))
|
|
|
|
;; Emacs uses Control-s and Control-q. Problems can occur when using emacs
|
|
;; on terminals that use these codes for flow control (Xon/Xoff flow control).
|
|
;; These lines disable emacs' use of these characters.
|
|
(global-unset-key "\C-s")
|
|
(global-unset-key "\C-q")
|
|
|
|
;; top, bottom, bol, eol seem like a waste of Gold-arrow functions. The
|
|
;; following section re-maps up and down arrow keys to top and bottom of
|
|
;; screen, and left and right arrow keys to pan left and right (pan-left,
|
|
;; right moves the screen 16 characters left or right - try it, you'll
|
|
;; like it!).
|
|
|
|
;; Re-map the Gold-arrow functions
|
|
(define-key GOLD-CSI-map "A" 'tpu-beginning-of-window) ; up-arrow
|
|
(define-key GOLD-CSI-map "B" 'tpu-end-of-window) ; down-arrow
|
|
(define-key GOLD-CSI-map "C" 'tpu-pan-right) ; right-arrow
|
|
(define-key GOLD-CSI-map "D" 'tpu-pan-left) ; left-arrow
|
|
(define-key GOLD-SS3-map "A" 'tpu-beginning-of-window) ; up-arrow
|
|
(define-key GOLD-SS3-map "B" 'tpu-end-of-window) ; down-arrow
|
|
(define-key GOLD-SS3-map "C" 'tpu-pan-right) ; right-arrow
|
|
(define-key GOLD-SS3-map "D" 'tpu-pan-left) ; left-arrow
|
|
|
|
;; Re-map the Gold-arrow functions for X-windows TPU-edt (emacs version 19)
|
|
(cond
|
|
((and tpu-emacs19-p window-system)
|
|
(define-key GOLD-map [up] 'tpu-beginning-of-window) ; up-arrow
|
|
(define-key GOLD-map [down] 'tpu-end-of-window) ; down-arrow
|
|
(define-key GOLD-map [right] 'tpu-pan-right) ; right-arrow
|
|
(define-key GOLD-map [left] 'tpu-pan-left))) ; left-arrow
|
|
|
|
;; The emacs universal-argument function is very useful for native emacs
|
|
;; commands. This line maps universal-argument to Gold-PF1
|
|
(define-key GOLD-SS3-map "P" 'universal-argument) ; Gold-PF1
|
|
|
|
;; Make KP7 move by paragraphs, instead of pages.
|
|
(define-key SS3-map "w" 'tpu-paragraph) ; KP7
|
|
|
|
;; TPU-edt assumes you have the ispell spelling checker;
|
|
;; Un-comment this line if you don't.
|
|
;(setq tpu-have-spell nil)
|
|
|
|
;; Display the TPU-edt version.
|
|
(tpu-version)
|
|
|
|
;; End of .emacs - a sample emacs initialization file
|
|
|
|
;; After initialization with the .emacs file shown above, the editing
|
|
;; keys have been re-mapped to look like this:
|
|
|
|
;; _______________________ _______________________________
|
|
;; | HELP | Do | | | | | |
|
|
;; |KeyDefs| | | | | | |
|
|
;; |_______|_______________| |_______|_______|_______|_______|
|
|
;; _______________________ _______________________________
|
|
;; | Find |Insert |Remove | | Gold | HELP |FndNxt | Del L |
|
|
;; | | |Sto Tex| | U Arg |E-Help | Find |Undel L|
|
|
;; |_______|_______|_______| |_______|_______|_______|_______|
|
|
;; |Select |Pre Scr|Nex Scr| |Paragra| Sect |Append | Del W |
|
|
;; | Reset |Pre Win|Nex Win| | Do | Fill |Replace|Undel W|
|
|
;; |_______|_______|_______| |_______|_______|_______|_______|
|
|
;; |Move up| |Forward|Reverse|Remove | Del C |
|
|
;; |Tscreen| |Bottom | Top |Insert |Undel C|
|
|
;; _______|_______|_______ |_______|_______|_______|_______|
|
|
;; |Mov Lef|Mov Dow|Mov Rig| | Word | EOL | Char | |
|
|
;; |PanLeft|Bscreen|PanRigh| |ChngCas|Del EOL|SpecIns| Enter |
|
|
;; |_______|_______|_______| |_______|_______|_______| |
|
|
;; | Line |Select | Subs |
|
|
;; | Open Line | Reset | |
|
|
;; |_______________|_______|_______|
|
|
|
|
;; Astute emacs hackers will realize that on systems where TPU-edt is
|
|
;; installed, this documentation file can be loaded to produce the above
|
|
;; editing keypad layout. In fact, to get all the changes in the sample
|
|
;; initialization file, you only need a one line initialization file:
|
|
|
|
;; (load "tpu-doc")
|
|
|
|
;; wow!
|
|
|
|
|
|
;; %% Compiling TPU-edt
|
|
|
|
;; It is not necessary to compile (byte-compile in emacs parlance)
|
|
;; TPU-edt to use it. However, byte-compiled code loads and runs
|
|
;; faster, and takes up less memory when loaded. To byte compile
|
|
;; TPU-edt, use the following command.
|
|
|
|
;; emacs -batch -f batch-byte-compile tpu-edt.el
|
|
|
|
;; This will produce a file named tpu-edt.elc. This new file can be
|
|
;; used in place of the original tpu-edt.el file. In commands where
|
|
;; the file type is not specified, emacs always attempts to use the
|
|
;; byte-compiled version before resorting to the source.
|
|
|
|
|
|
;; %% Regular expressions in TPU-edt
|
|
|
|
;; Gold-* toggles TPU-edt regular expression mode. In regular expression
|
|
;; mode, find, find next, replace, and substitute accept emacs regular
|
|
;; expressions. A complete list of emacs regular expressions can be
|
|
;; found using the emacs "info" command (it's somewhat like the VMS help
|
|
;; command). Try the following sequence of commands:
|
|
|
|
;; DO info <enter info mode>
|
|
;; m regex <select the "regular expression" topic>
|
|
;; m directives <select the "directives" topic>
|
|
|
|
;; Type "q" to quit out of info mode.
|
|
|
|
;; There is a problem in regular expression mode when searching for
|
|
;; empty strings, like beginning-of-line (^) and end-of-line ($).
|
|
;; When searching for these strings, find-next may find the current
|
|
;; string, instead of the next one. This can cause global replace and
|
|
;; substitute commands to loop forever in the same location. For this
|
|
;; reason, commands like
|
|
|
|
;; replace "^" "> " <add "> " to beginning of line>
|
|
;; replace "$" "00711" <add "00711" to end of line>
|
|
|
|
;; may not work properly.
|
|
|
|
;; Commands like those above are very useful for adding text to the
|
|
;; beginning or end of lines. They might work on a line-by-line basis,
|
|
;; but go into an infinite loop if the "all" response is specified. If
|
|
;; the goal is to add a string to the beginning or end of a particular
|
|
;; set of lines TPU-edt provides functions to do this.
|
|
|
|
;; Gold-^ Add a string at BOL in region or buffer
|
|
;; Gold-$ Add a string at EOL in region or buffer
|
|
|
|
;; There is also a TPU-edt interface to the native emacs string
|
|
;; replacement commands. Gold-/ invokes this command. It accepts
|
|
;; regular expressions if TPU-edt is in regular expression mode. Given
|
|
;; a repeat count, it will perform the replacement without prompting
|
|
;; for confirmation.
|
|
|
|
;; This command replaces empty strings correctly, however, it has its
|
|
;; drawbacks. As a native emacs command, it has a different interface
|
|
;; than the emulated TPU commands. Also, it works only in the forward
|
|
;; direction, regardless of the current TPU-edt direction.
|
|
|
|
|
|
;; %% Etcetera
|
|
|
|
;; That's TPU-edt in a nutshell...
|
|
|
|
;; Please send any bug reports, feature requests, or cookies to the
|
|
;; author, Rob Riepel, at the address shown by the tpu-version command
|
|
;; (Gold-V).
|
|
|
|
;; Share and enjoy... Rob Riepel 7/93
|
|
|
|
;;; tpu-doc.el ends here
|