+++ /dev/null
-;;; kermit.el --- additions to shell mode for use with kermit -*- lexical-binding: t -*-
-
-;; Copyright (C) 1988, 2001-2025 Free Software Foundation, Inc.
-
-;; Author: Jeff Norden <jeff@colgate.csnet>
-;; Maintainer: emacs-devel@gnu.org
-;; Created: 15 Feb 1988
-;; Keywords: comm
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; I'm not sure, but I think somebody asked about running kermit under shell
-;; mode a while ago. Anyway, here is some code that I find useful. The result
-;; is that I can log onto machines with primitive operating systems (VMS and
-;; ATT system V :-), and still have the features of shell-mode available for
-;; command history, etc. It's also handy to be able to run a file transfer in
-;; an Emacs window. The transfer is in the "background", but you can also
-;; monitor or stop it easily.
-
-;; The ^\ key is bound to a function for sending escape sequences to kermit,
-;; and ^C^Q can be used to send any control characters needed thru to the
-;; system you connect to. A more serious problem is that some brain-dead
-;; systems will not recognize a ^J as an end-of-line character. So LFD is
-;; bound to a new function which acts just like CR usually does in shell-mode,
-;; but a ^M is sent as an end-of-line. Functions are also provided to swap the
-;; bindings of CR and LFD. I've also included a filter which will clean out
-;; any ^M's or ^@'s that get typed at you, but I don't really recommend it.
-;; There doesn't seem to be an acceptably fast way to do this via emacs-lisp.
-;; Invoking kermit by the command " kermit | tr -d '\015' " seems to work
-;; better (on my system anyway).
-
-;; Here's how I've been using this setup. We have several machines connected
-;; thru a fairly stupid terminal switch. If I want to connect to unix system,
-;; then I use the LFD key to talk to the switch, and ignore any ^M's in the
-;; buffer, and do a " stty -echo nl " after I log in. Then the only real
-;; difference from being in local shell-mode is that you need to type
-;; ^C^Q^C to send an interrupt, and ^C^Q^Z for a stop signal, etc. (since ^C^C
-;; just generates a local stop signal, which kermit ignores).
-;; To connect to a VMS system, I use a shell script to invoke kermit thru the
-;; tr filter, do "M-X kermit-send-cr", and then tell VMS that I'm on a
-;; half-duplex terminal.
-
-;; Some caveats:
-;; 1) Kermit under shell mode is a real pain if you don't have pty's. I
-;; recently discovered this on our 3b2/400. When kermit can't find a tty, it
-;; assumes it is supposed to be in remote mode. So the simple command "kermit"
-;; won't work in shell mode on such a system. You can get around this by using
-;; the -c (connect) command line option, which means you also have to specify a
-;; line and baud on the command line, as in "kermit -l /dev/tty53 -b 9600 -c".
-;; However, this will cause kermit to exit when the connection is closed. So
-;; in order to do a file transfer, you have to think ahead and add -r
-;; (receive) to the command line. This means that you can't use the server
-;; feature. The only fix I can see is to muck around with the source code for
-;; kermit, although this probably wouldn't be too hard. What is needed is an
-;; option to force kermit to be local, to use stdin and stdout for interactive
-;; speech, and to forget about cbreak mode.
-
-;; Please let me know if any bugs turn up.
-;; Feb 1988, Jeff Norden - jeff@colgate.csnet
-
-;;; Code:
-
-(require 'shell)
-
-(defgroup kermit nil
- "Kermit support."
- :group 'comm)
-
-(defcustom kermit-esc-char "\C-\\"
- "Kermit's escape char."
- :type 'string)
-
-(defun kermit-esc ()
- "For sending escape sequences to a kermit running in shell mode."
- (interactive)
- (process-send-string
- (get-buffer-process (current-buffer))
- (concat kermit-esc-char (char-to-string (read-char)))))
-
-(defun kermit-send-char ()
- "Send an arbitrary character to a program in shell mode."
- (interactive)
- (process-send-string
- (get-buffer-process (current-buffer))
- (char-to-string (read-char))))
-
-(define-key shell-mode-map "\C-\\" 'kermit-esc)
-(define-key shell-mode-map "\C-c\C-q" 'kermit-send-char)
-;; extra bindings for folks suffering form ^S/^Q braindamage:
-(define-key shell-mode-map "\C-c\\" 'kermit-esc)
-
-(defun kermit-send-input-cr ()
- "Like \\[comint-send-input] but end the line with carriage-return."
- (interactive)
- (comint-send-input)
- (comint-send-string (get-buffer-process (current-buffer)) "\r"))
-
-;; This is backwards of what makes sense, but ...
-(define-key shell-mode-map "\n" 'kermit-send-input-cr)
-
-(defun kermit-default-cr ()
- "Make RETURN end the line with carriage-return and LFD end it with a newline.
-This is useful for talking to other systems on which carriage-return
-is the normal way to end a line."
- (interactive)
- (define-key shell-mode-map "\r" 'kermit-send-input-cr)
- (define-key shell-mode-map "\n" 'comint-send-input))
-
-(defun kermit-default-nl ()
- "Make RETURN end the line with a newline char. This is the default state.
-In this state, use LFD to send a line and end it with a carriage-return."
- (interactive)
- (define-key shell-mode-map "\n" 'kermit-send-input-cr)
- (define-key shell-mode-map "\r" 'comint-send-input))
-
-(defun kermit-clean-filter (proc str)
- "Strip ^M and ^@ characters from process output."
- (save-excursion
- (let ((beg (process-mark proc)))
- (set-buffer (process-buffer proc))
- (goto-char beg)
- (insert-before-markers str)
- (while (re-search-backward "[\r\C-a]+" beg t)
- (replace-match "")))))
-
-(defun kermit-clean-on ()
- "Delete all null characters and ^M's from the kermit output.
-Note that another (perhaps better) way to do this is to use the
-command `kermit | tr -d \\='\\015\\=''."
- (interactive)
- (set-process-filter (get-buffer-process (current-buffer))
- 'kermit-clean-filter))
-
-(defun kermit-clean-off ()
- "Cancel a previous `kermit-clean-on' command."
- (interactive)
- (set-process-filter (get-buffer-process (current-buffer)) nil))
-
-(provide 'kermit)
-
-;;; kermit.el ends here
--- /dev/null
+;;; kermit.el --- additions to shell mode for use with kermit -*- lexical-binding: t -*-
+
+;; Copyright (C) 1988, 2001-2025 Free Software Foundation, Inc.
+
+;; Author: Jeff Norden <jeff@colgate.csnet>
+;; Maintainer: emacs-devel@gnu.org
+;; Created: 15 Feb 1988
+;; Keywords: comm
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; I'm not sure, but I think somebody asked about running kermit under shell
+;; mode a while ago. Anyway, here is some code that I find useful. The result
+;; is that I can log onto machines with primitive operating systems (VMS and
+;; ATT system V :-), and still have the features of shell-mode available for
+;; command history, etc. It's also handy to be able to run a file transfer in
+;; an Emacs window. The transfer is in the "background", but you can also
+;; monitor or stop it easily.
+
+;; The ^\ key is bound to a function for sending escape sequences to kermit,
+;; and ^C^Q can be used to send any control characters needed thru to the
+;; system you connect to. A more serious problem is that some brain-dead
+;; systems will not recognize a ^J as an end-of-line character. So LFD is
+;; bound to a new function which acts just like CR usually does in shell-mode,
+;; but a ^M is sent as an end-of-line. Functions are also provided to swap the
+;; bindings of CR and LFD. I've also included a filter which will clean out
+;; any ^M's or ^@'s that get typed at you, but I don't really recommend it.
+;; There doesn't seem to be an acceptably fast way to do this via emacs-lisp.
+;; Invoking kermit by the command " kermit | tr -d '\015' " seems to work
+;; better (on my system anyway).
+
+;; Here's how I've been using this setup. We have several machines connected
+;; thru a fairly stupid terminal switch. If I want to connect to unix system,
+;; then I use the LFD key to talk to the switch, and ignore any ^M's in the
+;; buffer, and do a " stty -echo nl " after I log in. Then the only real
+;; difference from being in local shell-mode is that you need to type
+;; ^C^Q^C to send an interrupt, and ^C^Q^Z for a stop signal, etc. (since ^C^C
+;; just generates a local stop signal, which kermit ignores).
+;; To connect to a VMS system, I use a shell script to invoke kermit thru the
+;; tr filter, do "M-X kermit-send-cr", and then tell VMS that I'm on a
+;; half-duplex terminal.
+
+;; Some caveats:
+;; 1) Kermit under shell mode is a real pain if you don't have pty's. I
+;; recently discovered this on our 3b2/400. When kermit can't find a tty, it
+;; assumes it is supposed to be in remote mode. So the simple command "kermit"
+;; won't work in shell mode on such a system. You can get around this by using
+;; the -c (connect) command line option, which means you also have to specify a
+;; line and baud on the command line, as in "kermit -l /dev/tty53 -b 9600 -c".
+;; However, this will cause kermit to exit when the connection is closed. So
+;; in order to do a file transfer, you have to think ahead and add -r
+;; (receive) to the command line. This means that you can't use the server
+;; feature. The only fix I can see is to muck around with the source code for
+;; kermit, although this probably wouldn't be too hard. What is needed is an
+;; option to force kermit to be local, to use stdin and stdout for interactive
+;; speech, and to forget about cbreak mode.
+
+;; Please let me know if any bugs turn up.
+;; Feb 1988, Jeff Norden - jeff@colgate.csnet
+
+;;; Code:
+
+(require 'shell)
+
+(defgroup kermit nil
+ "Kermit support."
+ :group 'comm)
+
+(defcustom kermit-esc-char "\C-\\"
+ "Kermit's escape char."
+ :type 'string)
+
+(defun kermit-esc ()
+ "For sending escape sequences to a kermit running in shell mode."
+ (interactive)
+ (process-send-string
+ (get-buffer-process (current-buffer))
+ (concat kermit-esc-char (char-to-string (read-char)))))
+
+(defun kermit-send-char ()
+ "Send an arbitrary character to a program in shell mode."
+ (interactive)
+ (process-send-string
+ (get-buffer-process (current-buffer))
+ (char-to-string (read-char))))
+
+(define-key shell-mode-map "\C-\\" 'kermit-esc)
+(define-key shell-mode-map "\C-c\C-q" 'kermit-send-char)
+;; extra bindings for folks suffering form ^S/^Q braindamage:
+(define-key shell-mode-map "\C-c\\" 'kermit-esc)
+
+(defun kermit-send-input-cr ()
+ "Like \\[comint-send-input] but end the line with carriage-return."
+ (interactive)
+ (comint-send-input)
+ (comint-send-string (get-buffer-process (current-buffer)) "\r"))
+
+;; This is backwards of what makes sense, but ...
+(define-key shell-mode-map "\n" 'kermit-send-input-cr)
+
+(defun kermit-default-cr ()
+ "Make RETURN end the line with carriage-return and LFD end it with a newline.
+This is useful for talking to other systems on which carriage-return
+is the normal way to end a line."
+ (interactive)
+ (define-key shell-mode-map "\r" 'kermit-send-input-cr)
+ (define-key shell-mode-map "\n" 'comint-send-input))
+
+(defun kermit-default-nl ()
+ "Make RETURN end the line with a newline char. This is the default state.
+In this state, use LFD to send a line and end it with a carriage-return."
+ (interactive)
+ (define-key shell-mode-map "\n" 'kermit-send-input-cr)
+ (define-key shell-mode-map "\r" 'comint-send-input))
+
+(defun kermit-clean-filter (proc str)
+ "Strip ^M and ^@ characters from process output."
+ (save-excursion
+ (let ((beg (process-mark proc)))
+ (set-buffer (process-buffer proc))
+ (goto-char beg)
+ (insert-before-markers str)
+ (while (re-search-backward "[\r\C-a]+" beg t)
+ (replace-match "")))))
+
+(defun kermit-clean-on ()
+ "Delete all null characters and ^M's from the kermit output.
+Note that another (perhaps better) way to do this is to use the
+command `kermit | tr -d \\='\\015\\=''."
+ (interactive)
+ (set-process-filter (get-buffer-process (current-buffer))
+ 'kermit-clean-filter))
+
+(defun kermit-clean-off ()
+ "Cancel a previous `kermit-clean-on' command."
+ (interactive)
+ (set-process-filter (get-buffer-process (current-buffer)) nil))
+
+(provide 'kermit)
+
+;;; kermit.el ends here
projects / emacs.git / commitdiff