;;; inf-lisp.el --- an inferior-lisp mode
-;;; Copyright (C) 1988, 1993 Free Software Foundation, Inc.
+
+;; Copyright (C) 1988, 1993-1994, 2001-2011 Free Software Foundation, Inc.
;; Author: Olin Shivers <shivers@cs.cmu.edu>
;; Keywords: processes, lisp
-;;; This file is part of GNU Emacs.
+;; 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 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.
+;; 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.
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
-;;; Hacked from tea.el by Olin Shivers (shivers@cs.cmu.edu). 8/88
-
-;;; This file defines a a lisp-in-a-buffer package (inferior-lisp
-;;; mode) built on top of comint mode. This version is more
-;;; featureful, robust, and uniform than the Emacs 18 version. The
-;;; key bindings are also more compatible with the bindings of Hemlock
-;;; and Zwei (the Lisp Machine emacs).
-
-;;; Since this mode is built on top of the general command-interpreter-in-
-;;; a-buffer mode (comint mode), it shares a common base functionality,
-;;; and a common set of bindings, with all modes derived from comint mode.
-;;; This makes these modes easier to use.
-
-;;; For documentation on the functionality provided by comint mode, and
-;;; the hooks available for customising it, see the file comint.el.
-;;; For further information on inferior-lisp mode, see the comments below.
-
-;;; Needs fixin:
-;;; The load-file/compile-file default mechanism could be smarter -- it
-;;; doesn't know about the relationship between filename extensions and
-;;; whether the file is source or executable. If you compile foo.lisp
-;;; with compile-file, then the next load-file should use foo.bin for
-;;; the default, not foo.lisp. This is tricky to do right, particularly
-;;; because the extension for executable files varies so much (.o, .bin,
-;;; .lbin, .mo, .vo, .ao, ...).
-;;;
-;;; It would be nice if inferior-lisp (and inferior scheme, T, ...) modes
-;;; had a verbose minor mode wherein sending or compiling defuns, etc.
-;;; would be reflected in the transcript with suitable comments, e.g.
-;;; ";;; redefining fact". Several ways to do this. Which is right?
-;;;
-;;; When sending text from a source file to a subprocess, the process-mark can
-;;; move off the window, so you can lose sight of the process interactions.
-;;; Maybe I should ensure the process mark is in the window when I send
-;;; text to the process? Switch selectable?
+;; Hacked from tea.el by Olin Shivers (shivers@cs.cmu.edu). 8/88
+
+;; This file defines a lisp-in-a-buffer package (inferior-lisp mode)
+;; built on top of comint mode. This version is more featureful,
+;; robust, and uniform than the Emacs 18 version. The key bindings are
+;; also more compatible with the bindings of Hemlock and Zwei (the
+;; Lisp Machine emacs).
+
+;; Since this mode is built on top of the general command-interpreter-in-
+;; a-buffer mode (comint mode), it shares a common base functionality,
+;; and a common set of bindings, with all modes derived from comint mode.
+;; This makes these modes easier to use.
+
+;; For documentation on the functionality provided by comint mode, and
+;; the hooks available for customizing it, see the file comint.el.
+;; For further information on inferior-lisp mode, see the comments below.
+
+;; Needs fixin:
+;; The load-file/compile-file default mechanism could be smarter -- it
+;; doesn't know about the relationship between filename extensions and
+;; whether the file is source or executable. If you compile foo.lisp
+;; with compile-file, then the next load-file should use foo.bin for
+;; the default, not foo.lisp. This is tricky to do right, particularly
+;; because the extension for executable files varies so much (.o, .bin,
+;; .lbin, .mo, .vo, .ao, ...).
+;;
+;; It would be nice if inferior-lisp (and inferior scheme, T, ...) modes
+;; had a verbose minor mode wherein sending or compiling defuns, etc.
+;; would be reflected in the transcript with suitable comments, e.g.
+;; ";;; redefining fact". Several ways to do this. Which is right?
+;;
+;; When sending text from a source file to a subprocess, the process-mark can
+;; move off the window, so you can lose sight of the process interactions.
+;; Maybe I should ensure the process mark is in the window when I send
+;; text to the process? Switch selectable?
;;; Code:
(require 'lisp-mode)
\f
+(defgroup inferior-lisp nil
+ "Run an outside Lisp in an Emacs buffer."
+ :group 'lisp
+ :version "22.1")
+
;;;###autoload
-(defvar inferior-lisp-filter-regexp "\\`\\s *\\(:\\(\\w\\|\\s_\\)\\)?\\s *\\'"
+(defcustom inferior-lisp-filter-regexp
+ (purecopy "\\`\\s *\\(:\\(\\w\\|\\s_\\)\\)?\\s *\\'")
"*What not to save on inferior Lisp's input history.
Input matching this regexp is not saved on the input history in Inferior Lisp
-mode. Default is whitespace followed by 0 or 1 single-letter colon-keyword
-(as in :a, :c, etc.)")
-
-(defvar inferior-lisp-mode-map nil)
-(cond ((not inferior-lisp-mode-map)
- (setq inferior-lisp-mode-map
- (copy-keymap comint-mode-map))
- (setq inferior-lisp-mode-map
- (nconc inferior-lisp-mode-map shared-lisp-mode-map))
- (define-key inferior-lisp-mode-map "\C-x\C-e" 'lisp-eval-last-sexp)
- (define-key inferior-lisp-mode-map "\C-c\C-l" 'lisp-load-file)
- (define-key inferior-lisp-mode-map "\C-c\C-k" 'lisp-compile-file)
- (define-key inferior-lisp-mode-map "\C-c\C-a" 'lisp-show-arglist)
- (define-key inferior-lisp-mode-map "\C-c\C-d" 'lisp-describe-sym)
- (define-key inferior-lisp-mode-map "\C-c\C-f"
- 'lisp-show-function-documentation)
- (define-key inferior-lisp-mode-map "\C-c\C-v"
- 'lisp-show-variable-documentation)))
+mode. Default is whitespace followed by 0 or 1 single-letter colon-keyword
+\(as in :a, :c, etc.)"
+ :type 'regexp
+ :group 'inferior-lisp)
+
+(defvar inferior-lisp-mode-map
+ (let ((map (copy-keymap comint-mode-map)))
+ (set-keymap-parent map lisp-mode-shared-map)
+ (define-key map "\C-x\C-e" 'lisp-eval-last-sexp)
+ (define-key map "\C-c\C-l" 'lisp-load-file)
+ (define-key map "\C-c\C-k" 'lisp-compile-file)
+ (define-key map "\C-c\C-a" 'lisp-show-arglist)
+ (define-key map "\C-c\C-d" 'lisp-describe-sym)
+ (define-key map "\C-c\C-f" 'lisp-show-function-documentation)
+ (define-key map "\C-c\C-v" 'lisp-show-variable-documentation)
+ map))
;;; These commands augment Lisp mode, so you can process Lisp code in
;;; the source files.
;;;where they are more accessible. C-c <letter> bindings are reserved for the
;;;user, so these bindings are non-standard. If you want them, you should
;;;have this function called by the inferior-lisp-load-hook:
-;;; (setq inferior-lisp-load-hook '(inferior-lisp-install-letter-bindings))
+;;; (add-hook 'inferior-lisp-load-hook 'inferior-lisp-install-letter-bindings)
;;;You can modify this function to install just the bindings you want."
(defun inferior-lisp-install-letter-bindings ()
(define-key lisp-mode-map "\C-ce" 'lisp-eval-defun-and-go)
(define-key lisp-mode-map "\C-cd" 'lisp-describe-sym)
(define-key lisp-mode-map "\C-cf" 'lisp-show-function-documentation)
(define-key lisp-mode-map "\C-cv" 'lisp-show-variable-documentation)
-
+
(define-key inferior-lisp-mode-map "\C-cl" 'lisp-load-file)
(define-key inferior-lisp-mode-map "\C-ck" 'lisp-compile-file)
(define-key inferior-lisp-mode-map "\C-ca" 'lisp-show-arglist)
(define-key inferior-lisp-mode-map "\C-cv"
'lisp-show-variable-documentation))
-
;;;###autoload
-(defvar inferior-lisp-program "lisp"
- "*Program name for invoking an inferior Lisp with for Inferior Lisp mode.")
+(defcustom inferior-lisp-program (purecopy "lisp")
+ "*Program name for invoking an inferior Lisp in Inferior Lisp mode."
+ :type 'string
+ :group 'inferior-lisp)
;;;###autoload
-(defvar inferior-lisp-load-command "(load \"%s\")\n"
+(defcustom inferior-lisp-load-command (purecopy "(load \"%s\")\n")
"*Format-string for building a Lisp expression to load a file.
This format string should use `%s' to substitute a file name
and should result in a Lisp expression that will command the inferior Lisp
to load that file. The default works acceptably on most Lisps.
-The string \"(progn (load \\\"%s\\\" :verbose nil :print t) (values))\\\n\"
+The string \"(progn (load \\\"%s\\\" :verbose nil :print t) (values))\\n\"
produces cosmetically superior output for this application,
-but it works only in Common Lisp.")
+but it works only in Common Lisp."
+ :type 'string
+ :group 'inferior-lisp)
;;;###autoload
-(defvar inferior-lisp-prompt "^[^> \n]*>+:? *"
- "Regexp to recognise prompts in the Inferior Lisp mode.
+(defcustom inferior-lisp-prompt (purecopy "^[^> \n]*>+:? *")
+ "Regexp to recognize prompts in the Inferior Lisp mode.
Defaults to \"^[^> \\n]*>+:? *\", which works pretty good for Lucid, kcl,
-and franz. This variable is used to initialize `comint-prompt-regexp' in the
+and franz. This variable is used to initialize `comint-prompt-regexp' in the
Inferior Lisp buffer.
+This variable is only used if the variable
+`comint-use-prompt-regexp' is non-nil.
+
More precise choices:
-Lucid Common Lisp: \"^\\(>\\|\\(->\\)+\\) *\"
-franz: \"^\\(->\\|<[0-9]*>:\\) *\"
+Lucid Common Lisp: \"^\\\\(>\\\\|\\\\(->\\\\)+\\\\) *\"
+franz: \"^\\\\(->\\\\|<[0-9]*>:\\\\) *\"
kcl: \"^>+ *\"
-This is a fine thing to set in your .emacs file.")
+This is a fine thing to set in your .emacs file or through Custom."
+ :type 'regexp
+ :group 'inferior-lisp)
(defvar inferior-lisp-buffer nil "*The current inferior-lisp process buffer.
foo inferior-lisp
bar inferior-lisp<2>
*inferior-lisp* inferior-lisp<3>
-If you do a \\[lisp-eval-defun] command on some Lisp source code,
+If you do a \\[lisp-eval-defun] command on some Lisp source code,
what process do you send it to?
-- If you're in a process buffer (foo, bar, or *inferior-lisp*),
+- If you're in a process buffer (foo, bar, or *inferior-lisp*),
you send it to that process.
- If you're in some other buffer (e.g., a source file), you
send it to the process attached to buffer `inferior-lisp-buffer'.
;;;###autoload
(defvar inferior-lisp-mode-hook '()
- "*Hook for customising Inferior Lisp mode.")
+ "*Hook for customizing Inferior Lisp mode.")
+
+(put 'inferior-lisp-mode 'mode-class 'special)
-(defun inferior-lisp-mode ()
- "Major mode for interacting with an inferior Lisp process.
+(define-derived-mode inferior-lisp-mode comint-mode "Inferior Lisp"
+ "Major mode for interacting with an inferior Lisp process.
Runs a Lisp interpreter as a subprocess of Emacs, with Lisp I/O through an
Emacs buffer. Variable `inferior-lisp-program' controls which Lisp interpreter
is run. Variables `inferior-lisp-prompt', `inferior-lisp-filter-regexp' and
\\{inferior-lisp-mode-map}
-Customisation: Entry to this mode runs the hooks on `comint-mode-hook' and
+Customization: Entry to this mode runs the hooks on `comint-mode-hook' and
`inferior-lisp-mode-hook' (in that order).
You can send text to the inferior Lisp process from other buffers containing
-Lisp source.
- switch-to-lisp switches the current buffer to the Lisp process buffer.
- lisp-eval-defun sends the current defun to the Lisp process.
- lisp-compile-defun compiles the current defun.
- lisp-eval-region sends the current region to the Lisp process.
- lisp-compile-region compiles the current region.
+Lisp source.
+ `switch-to-lisp' switches the current buffer to the Lisp process buffer.
+ `lisp-eval-defun' sends the current defun to the Lisp process.
+ `lisp-compile-defun' compiles the current defun.
+ `lisp-eval-region' sends the current region to the Lisp process.
+ `lisp-compile-region' compiles the current region.
Prefixing the lisp-eval/compile-defun/region commands with
a \\[universal-argument] causes a switch to the Lisp process buffer after sending
the text.
-Commands:
-Return after the end of the process' output sends the text from the
+Commands:\\<inferior-lisp-mode-map>
+\\[comint-send-input] after the end of the process' output sends the text from the
end of process to point.
-Return before the end of the process' output copies the sexp ending at point
+\\[comint-send-input] before the end of the process' output copies the sexp ending at point
to the end of the process' output, and sends it.
-Delete converts tabs to spaces as it moves back.
-Tab indents for Lisp; with argument, shifts rest
+\\[comint-copy-old-input] copies the sexp ending at point to the end of the process' output,
+ allowing you to edit it before sending it.
+If `comint-use-prompt-regexp' is nil (the default), \\[comint-insert-input] on old input
+ copies the entire old input to the end of the process' output, allowing
+ you to edit it before sending it. When not used on old input, or if
+ `comint-use-prompt-regexp' is non-nil, \\[comint-insert-input] behaves according to
+ its global binding.
+\\[backward-delete-char-untabify] converts tabs to spaces as it moves back.
+\\[lisp-indent-line] indents for Lisp; with argument, shifts rest
of expression rigidly with the current line.
-C-M-q does Tab on each line starting within following expression.
+\\[indent-sexp] does \\[lisp-indent-line] on each line starting within following expression.
Paragraphs are separated only by blank lines. Semicolons start comments.
If you accidentally suspend your process, use \\[comint-continue-subjob]
to continue it."
- (interactive)
- (comint-mode)
(setq comint-prompt-regexp inferior-lisp-prompt)
- (setq major-mode 'inferior-lisp-mode)
- (setq mode-name "Inferior Lisp")
- (setq mode-line-process '(": %s"))
+ (setq mode-line-process '(":%s"))
(lisp-mode-variables t)
- (use-local-map inferior-lisp-mode-map) ;c-c c-k for "kompile" file
(setq comint-get-old-input (function lisp-get-old-input))
- (setq comint-input-filter (function lisp-input-filter))
- (setq comint-input-sentinel 'ignore)
- (run-hooks 'inferior-lisp-mode-hook))
+ (setq comint-input-filter (function lisp-input-filter)))
(defun lisp-get-old-input ()
"Return a string containing the sexp ending at point."
(read-string "Run lisp: " inferior-lisp-program)
inferior-lisp-program)))
(if (not (comint-check-proc "*inferior-lisp*"))
- (let ((cmdlist (inferior-lisp-args-to-list cmd)))
+ (let ((cmdlist (split-string cmd)))
(set-buffer (apply (function make-comint)
"inferior-lisp" (car cmdlist) nil (cdr cmdlist)))
(inferior-lisp-mode)))
(setq inferior-lisp-buffer "*inferior-lisp*")
- (switch-to-buffer "*inferior-lisp*"))
+ (pop-to-buffer-same-window "*inferior-lisp*"))
;;;###autoload
(defalias 'run-lisp 'inferior-lisp)
-;;; Break a string up into a list of arguments.
-;;; This will break if you have an argument with whitespace, as in
-;;; string = "-ab +c -x 'you lose'".
-(defun inferior-lisp-args-to-list (string)
- (let ((where (string-match "[ \t]" string)))
- (cond ((null where) (list string))
- ((not (= where 0))
- (cons (substring string 0 where)
- (inferior-lisp-args-to-list (substring string (+ 1 where)
- (length string)))))
- (t (let ((pos (string-match "[^ \t]" string)))
- (if (null pos)
- nil
- (inferior-lisp-args-to-list (substring string pos
- (length string)))))))))
-
(defun lisp-eval-region (start end &optional and-go)
"Send the current region to the inferior Lisp process.
Prefix argument means switch to the Lisp buffer afterwards."
(comint-send-string (inferior-lisp-proc) "\n")
(if and-go (switch-to-lisp t)))
-(defun lisp-eval-defun (&optional and-go)
+(defun lisp-compile-string (string)
+ "Send the string to the inferior Lisp process to be compiled and executed."
+ (comint-send-string
+ (inferior-lisp-proc)
+ (format "(funcall (compile nil (lambda () %s)))\n" string)))
+
+(defun lisp-eval-string (string)
+ "Send the string to the inferior Lisp process to be executed."
+ (comint-send-string (inferior-lisp-proc) (concat string "\n")))
+
+(defun lisp-do-defun (do-string do-region)
"Send the current defun to the inferior Lisp process.
-Prefix argument means switch to the Lisp buffer afterwards."
- (interactive "P")
+The actually processing is done by `do-string' and `do-region'
+ which determine whether the code is compiled before evaluation.
+DEFVAR forms reset the variables to the init values."
(save-excursion
(end-of-defun)
(skip-chars-backward " \t\n\r\f") ; Makes allegro happy
- (let ((end (point)))
+ (let ((end (point)) (case-fold-search t))
(beginning-of-defun)
- (lisp-eval-region (point) end)))
+ (if (looking-at "(defvar")
+ (funcall do-string
+ ;; replace `defvar' with `defparameter'
+ (concat "(defparameter "
+ (buffer-substring-no-properties (+ (point) 7) end)
+ "\n"))
+ (funcall do-region (point) end)))))
+
+(defun lisp-eval-defun (&optional and-go)
+ "Send the current defun to the inferior Lisp process.
+DEFVAR forms reset the variables to the init values.
+Prefix argument means switch to the Lisp buffer afterwards."
+ (interactive "P")
+ (lisp-do-defun 'lisp-eval-string 'lisp-eval-region)
(if and-go (switch-to-lisp t)))
(defun lisp-eval-last-sexp (&optional and-go)
(interactive "P")
(lisp-eval-region (save-excursion (backward-sexp) (point)) (point) and-go))
-;;; Common Lisp COMPILE sux.
(defun lisp-compile-region (start end &optional and-go)
"Compile the current region in the inferior Lisp process.
Prefix argument means switch to the Lisp buffer afterwards."
(interactive "r\nP")
- (comint-send-string
- (inferior-lisp-proc)
- (format "(funcall (compile nil `(lambda () (progn 'compile %s))))\n"
- (buffer-substring start end)))
+ (lisp-compile-string (buffer-substring-no-properties start end))
(if and-go (switch-to-lisp t)))
(defun lisp-compile-defun (&optional and-go)
"Compile the current defun in the inferior Lisp process.
+DEFVAR forms reset the variables to the init values.
Prefix argument means switch to the Lisp buffer afterwards."
(interactive "P")
- (save-excursion
- (end-of-defun)
- (skip-chars-backward " \t\n\r\f") ; Makes allegro happy
- (let ((e (point)))
- (beginning-of-defun)
- (lisp-compile-region (point) e)))
+ (lisp-do-defun 'lisp-compile-string 'lisp-compile-region)
(if and-go (switch-to-lisp t)))
(defun switch-to-lisp (eob-p)
"Switch to the inferior Lisp process buffer.
With argument, positions cursor at end of buffer."
(interactive "P")
- (if (get-buffer inferior-lisp-buffer)
- (pop-to-buffer inferior-lisp-buffer)
- (error "No current inferior Lisp buffer"))
- (cond (eob-p
+ (if (get-buffer-process inferior-lisp-buffer)
+ (let ((pop-up-frames
+ ;; Be willing to use another frame
+ ;; that already has the window in it.
+ (or pop-up-frames
+ (get-buffer-window inferior-lisp-buffer t))))
+ (pop-to-buffer inferior-lisp-buffer))
+ (run-lisp inferior-lisp-program))
+ (when eob-p
(push-mark)
- (goto-char (point-max)))))
+ (goto-char (point-max))))
;;; Now that lisp-compile/eval-defun/region takes an optional prefix arg,
;;; (buffer-substring body-start (point))))
;;; (process-send-string "inferior-lisp" ")\n"))
;;; (t (lisp-eval-region start end)))))
-;;;
+;;;
;;; (defun lisp-compile-region (start end)
;;; "Each s-expression in the current region is compiled (if a DEFUN)
;;; or evaluated (if not) in the inferior lisp."
;;; (setq s (point))
;;; (end-of-defun))
;;; (if (< s end) (lisp-compile-sexp s end)))))
-;;;
+;;;
;;; End of HS-style code
This holds a cons cell of the form `(DIRECTORY . FILE)'
describing the last `lisp-load-file' or `lisp-compile-file' command.")
-(defvar lisp-source-modes '(lisp-mode)
+(defcustom lisp-source-modes '(lisp-mode)
"*Used to determine if a buffer contains Lisp source code.
If it's loaded into a buffer that is in one of these major modes, it's
considered a Lisp source file by `lisp-load-file' and `lisp-compile-file'.
-Used by these commands to determine defaults.")
+Used by these commands to determine defaults."
+ :type '(repeat symbol)
+ :group 'inferior-lisp)
(defun lisp-load-file (file-name)
"Load a Lisp file into the inferior Lisp process."
(interactive (comint-get-source "Load Lisp file: " lisp-prev-l/c-dir/file
- lisp-source-modes nil)) ; NIL because LOAD
+ lisp-source-modes nil)) ; nil because LOAD
; doesn't need an exact name
(comint-check-source file-name) ; Check to see if buffer needs saved.
(setq lisp-prev-l/c-dir/file (cons (file-name-directory file-name)
(defun lisp-compile-file (file-name)
"Compile a Lisp file in the inferior Lisp process."
(interactive (comint-get-source "Compile Lisp file: " lisp-prev-l/c-dir/file
- lisp-source-modes nil)) ; NIL = don't need
+ lisp-source-modes nil)) ; nil = don't need
; suffix .lisp
(comint-check-source file-name) ; Check to see if buffer needs saved.
(setq lisp-prev-l/c-dir/file (cons (file-name-directory file-name)
;; "Returns the current inferior Lisp process.
;; See variable `inferior-lisp-buffer'."
(defun inferior-lisp-proc ()
- (let ((proc (get-buffer-process (if (eq major-mode 'inferior-lisp-mode)
+ (let ((proc (get-buffer-process (if (derived-mode-p 'inferior-lisp-mode)
(current-buffer)
inferior-lisp-buffer))))
(or proc
(error "No Lisp subprocess; see variable `inferior-lisp-buffer'"))))
-;;; Do the user's customisation...
+;;; Do the user's customization...
;;;===============================
(defvar inferior-lisp-load-hook nil
- "This hook is run when the library `inf-lisp' is loaded.
-This is a good place to put keybindings.")
+ "This hook is run when the library `inf-lisp' is loaded.")
(run-hooks 'inferior-lisp-load-hook)
;;; this is now the official inferior lisp package. Use the global
;;; ChangeLog from now on.
;;; 5/24/90 Olin
-;;; - Split cmulisp and cmushell modes into separate files.
+;;; - Split cmulisp and cmushell modes into separate files.
;;; Not only is this a good idea, it's apparently the way it'll be rel 19.
;;; - Upgraded process sends to use comint-send-string instead of
;;; process-send-string.
;;; supposed to be reserved for the user to bind. This affected
;;; mainly the compile/eval-defun/region[-and-go] commands.
;;; This was painful, but necessary to adhere to the gnumacs standard.
-;;; For some backwards compatibility, see the
+;;; For some backwards compatibility, see the
;;; cmulisp-install-letter-bindings
;;; function.
;;;