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emacs/lisp/progmodes/inf-lisp.el
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;;; inf-lisp.el --- an inferior-lisp mode
;; Copyright (C) 1988, 1993, 1994, 2001, 2002, 2003, 2004, 2005, 2006, 2007
;; Free Software Foundation, Inc.
;; Author: Olin Shivers <shivers@cs.cmu.edu>
;; Keywords: processes, lisp
;; 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, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; 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 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?
;;; Code:
(require 'comint)
(require 'lisp-mode)
(defgroup inferior-lisp nil
"Run an outside Lisp in an Emacs buffer."
:group 'lisp
:version "22.1")
;;;###autoload
(defcustom inferior-lisp-filter-regexp
"\\`\\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.)"
:type 'regexp
:group 'inferior-lisp)
(defvar inferior-lisp-mode-map nil)
(unless inferior-lisp-mode-map
(setq inferior-lisp-mode-map (copy-keymap comint-mode-map))
(set-keymap-parent inferior-lisp-mode-map lisp-mode-shared-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))
;;; These commands augment Lisp mode, so you can process Lisp code in
;;; the source files.
(define-key lisp-mode-map "\M-\C-x" 'lisp-eval-defun) ; Gnu convention
(define-key lisp-mode-map "\C-x\C-e" 'lisp-eval-last-sexp) ; Gnu convention
(define-key lisp-mode-map "\C-c\C-e" 'lisp-eval-defun)
(define-key lisp-mode-map "\C-c\C-r" 'lisp-eval-region)
(define-key lisp-mode-map "\C-c\C-c" 'lisp-compile-defun)
(define-key lisp-mode-map "\C-c\C-z" 'switch-to-lisp)
(define-key lisp-mode-map "\C-c\C-l" 'lisp-load-file)
(define-key lisp-mode-map "\C-c\C-k" 'lisp-compile-file) ; "kompile" file
(define-key lisp-mode-map "\C-c\C-a" 'lisp-show-arglist)
(define-key lisp-mode-map "\C-c\C-d" 'lisp-describe-sym)
(define-key lisp-mode-map "\C-c\C-f" 'lisp-show-function-documentation)
(define-key lisp-mode-map "\C-c\C-v" 'lisp-show-variable-documentation)
;;; This function exists for backwards compatibility.
;;; Previous versions of this package bound commands to C-c <letter>
;;; bindings, which is not allowed by the gnumacs standard.
;;; "This function binds many inferior-lisp commands to C-c <letter> bindings,
;;;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:
;;; (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-cr" 'lisp-eval-region-and-go)
(define-key lisp-mode-map "\C-cc" 'lisp-compile-defun-and-go)
(define-key lisp-mode-map "\C-cz" 'switch-to-lisp)
(define-key lisp-mode-map "\C-cl" 'lisp-load-file)
(define-key lisp-mode-map "\C-ck" 'lisp-compile-file)
(define-key lisp-mode-map "\C-ca" 'lisp-show-arglist)
(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-cd" 'lisp-describe-sym)
(define-key inferior-lisp-mode-map "\C-cf" 'lisp-show-function-documentation)
(define-key inferior-lisp-mode-map "\C-cv"
'lisp-show-variable-documentation))
;;;###autoload
(defcustom inferior-lisp-program "lisp"
"*Program name for invoking an inferior Lisp in Inferior Lisp mode."
:type 'string
:group 'inferior-lisp)
;;;###autoload
(defcustom inferior-lisp-load-command "(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\"
produces cosmetically superior output for this application,
but it works only in Common Lisp."
:type 'string
:group 'inferior-lisp)
;;;###autoload
(defcustom inferior-lisp-prompt "^[^> \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
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]*>:\\\\) *\"
kcl: \"^>+ *\"
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.
MULTIPLE PROCESS SUPPORT
===========================================================================
To run multiple Lisp processes, you start the first up
with \\[inferior-lisp]. It will be in a buffer named `*inferior-lisp*'.
Rename this buffer with \\[rename-buffer]. You may now start up a new
process with another \\[inferior-lisp]. It will be in a new buffer,
named `*inferior-lisp*'. You can switch between the different process
buffers with \\[switch-to-buffer].
Commands that send text from source buffers to Lisp processes --
like `lisp-eval-defun' or `lisp-show-arglist' -- have to choose a process
to send to, when you have more than one Lisp process around. This
is determined by the global variable `inferior-lisp-buffer'. Suppose you
have three inferior Lisps running:
Buffer Process
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,
what process do you send it to?
- 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'.
This process selection is performed by function `inferior-lisp-proc'.
Whenever \\[inferior-lisp] fires up a new process, it resets
`inferior-lisp-buffer' to be the new process's buffer. If you only run
one process, this does the right thing. If you run multiple
processes, you can change `inferior-lisp-buffer' to another process
buffer with \\[set-variable].")
;;;###autoload
(defvar inferior-lisp-mode-hook '()
"*Hook for customising Inferior Lisp mode.")
(put 'inferior-lisp-mode 'mode-class 'special)
(defun inferior-lisp-mode ()
"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-load-command' can customize this mode for different Lisp
interpreters.
For information on running multiple processes in multiple buffers, see
documentation for variable `inferior-lisp-buffer'.
\\{inferior-lisp-mode-map}
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.
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:\\<inferior-lisp-mode-map>
\\[comint-send-input] after the end of the process' output sends the text from the
end of process to 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.
\\[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.
\\[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)
(delay-mode-hooks
(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"))
(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))
(run-mode-hooks 'inferior-lisp-mode-hook))
(defun lisp-get-old-input ()
"Return a string containing the sexp ending at point."
(save-excursion
(let ((end (point)))
(backward-sexp)
(buffer-substring (point) end))))
(defun lisp-input-filter (str)
"t if STR does not match `inferior-lisp-filter-regexp'."
(not (string-match inferior-lisp-filter-regexp str)))
;;;###autoload
(defun inferior-lisp (cmd)
"Run an inferior Lisp process, input and output via buffer `*inferior-lisp*'.
If there is a process already running in `*inferior-lisp*', just switch
to that buffer.
With argument, allows you to edit the command line (default is value
of `inferior-lisp-program'). Runs the hooks from
`inferior-lisp-mode-hook' (after the `comint-mode-hook' is run).
\(Type \\[describe-mode] in the process buffer for a list of commands.)"
(interactive (list (if current-prefix-arg
(read-string "Run lisp: " inferior-lisp-program)
inferior-lisp-program)))
(if (not (comint-check-proc "*inferior-lisp*"))
(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*")
(pop-to-buffer "*inferior-lisp*"))
;;;###autoload (add-hook 'same-window-buffer-names "*inferior-lisp*")
;;;###autoload
(defalias 'run-lisp 'inferior-lisp)
(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."
(interactive "r\nP")
(comint-send-region (inferior-lisp-proc) start end)
(comint-send-string (inferior-lisp-proc) "\n")
(if and-go (switch-to-lisp t)))
(defun lisp-eval-defun (&optional and-go)
"Send the current defun to the inferior Lisp process.
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 ((end (point)))
(beginning-of-defun)
(lisp-eval-region (point) end)))
(if and-go (switch-to-lisp t)))
(defun lisp-eval-last-sexp (&optional and-go)
"Send the previous sexp to the inferior Lisp process.
Prefix argument means switch to the Lisp buffer afterwards."
(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)))
(if and-go (switch-to-lisp t)))
(defun lisp-compile-defun (&optional and-go)
"Compile the current defun in the inferior Lisp process.
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)))
(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-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))))
;;; Now that lisp-compile/eval-defun/region takes an optional prefix arg,
;;; these commands are redundant. But they are kept around for the user
;;; to bind if he wishes, for backwards functionality, and because it's
;;; easier to type C-c e than C-u C-c C-e.
(defun lisp-eval-region-and-go (start end)
"Send the current region to the inferior Lisp, and switch to its buffer."
(interactive "r")
(lisp-eval-region start end t))
(defun lisp-eval-defun-and-go ()
"Send the current defun to the inferior Lisp, and switch to its buffer."
(interactive)
(lisp-eval-defun t))
(defun lisp-compile-region-and-go (start end)
"Compile the current region in the inferior Lisp, and switch to its buffer."
(interactive "r")
(lisp-compile-region start end t))
(defun lisp-compile-defun-and-go ()
"Compile the current defun in the inferior Lisp, and switch to its buffer."
(interactive)
(lisp-compile-defun t))
;;; A version of the form in H. Shevis' soar-mode.el package. Less robust.
;;; (defun lisp-compile-sexp (start end)
;;; "Compile the s-expression bounded by START and END in the inferior lisp.
;;; If the sexp isn't a DEFUN form, it is evaluated instead."
;;; (cond ((looking-at "(defun\\s +")
;;; (goto-char (match-end 0))
;;; (let ((name-start (point)))
;;; (forward-sexp 1)
;;; (process-send-string "inferior-lisp"
;;; (format "(compile '%s #'(lambda "
;;; (buffer-substring name-start
;;; (point)))))
;;; (let ((body-start (point)))
;;; (goto-char start) (forward-sexp 1) ; Can't use end-of-defun.
;;; (process-send-region "inferior-lisp"
;;; (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."
;;; (interactive "r")
;;; (save-excursion
;;; (goto-char start) (end-of-defun) (beginning-of-defun) ; error check
;;; (if (< (point) start) (error "region begins in middle of defun"))
;;; (goto-char start)
;;; (let ((s start))
;;; (end-of-defun)
;;; (while (<= (point) end) ; Zip through
;;; (lisp-compile-sexp s (point)) ; compiling up defun-sized chunks.
;;; (setq s (point))
;;; (end-of-defun))
;;; (if (< s end) (lisp-compile-sexp s end)))))
;;;
;;; End of HS-style code
(defvar lisp-prev-l/c-dir/file nil
"Record last directory and file used in loading or compiling.
This holds a cons cell of the form `(DIRECTORY . FILE)'
describing the last `lisp-load-file' or `lisp-compile-file' command.")
(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."
: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
; 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)
(file-name-nondirectory file-name)))
(comint-send-string (inferior-lisp-proc)
(format inferior-lisp-load-command file-name))
(switch-to-lisp t))
(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
; 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)
(file-name-nondirectory file-name)))
(comint-send-string (inferior-lisp-proc) (concat "(compile-file \""
file-name
"\"\)\n"))
(switch-to-lisp t))
;;; Documentation functions: function doc, var doc, arglist, and
;;; describe symbol.
;;; ===========================================================================
;;; Command strings
;;; ===============
(defvar lisp-function-doc-command
"(let ((fn '%s))
(format t \"Documentation for ~a:~&~a\"
fn (documentation fn 'function))
(values))\n"
"Command to query inferior Lisp for a function's documentation.")
(defvar lisp-var-doc-command
"(let ((v '%s))
(format t \"Documentation for ~a:~&~a\"
v (documentation v 'variable))
(values))\n"
"Command to query inferior Lisp for a variable's documentation.")
(defvar lisp-arglist-command
"(let ((fn '%s))
(format t \"Arglist for ~a: ~a\" fn (arglist fn))
(values))\n"
"Command to query inferior Lisp for a function's arglist.")
(defvar lisp-describe-sym-command
"(describe '%s)\n"
"Command to query inferior Lisp for a variable's documentation.")
;;; Ancillary functions
;;; ===================
;;; Reads a string from the user.
(defun lisp-symprompt (prompt default)
(list (let* ((prompt (if default
(format "%s (default %s): " prompt default)
(concat prompt ": ")))
(ans (read-string prompt)))
(if (zerop (length ans)) default ans))))
;;; Adapted from function-called-at-point in help.el.
(defun lisp-fn-called-at-pt ()
"Returns the name of the function called in the current call.
The value is nil if it can't find one."
(condition-case nil
(save-excursion
(save-restriction
(narrow-to-region (max (point-min) (- (point) 1000)) (point-max))
(backward-up-list 1)
(forward-char 1)
(let ((obj (read (current-buffer))))
(and (symbolp obj) obj))))
(error nil)))
;;; Adapted from variable-at-point in help.el.
(defun lisp-var-at-pt ()
(condition-case ()
(save-excursion
(forward-sexp -1)
(skip-chars-forward "'")
(let ((obj (read (current-buffer))))
(and (symbolp obj) obj)))
(error nil)))
;;; Documentation functions: fn and var doc, arglist, and symbol describe.
;;; ======================================================================
(defun lisp-show-function-documentation (fn)
"Send a command to the inferior Lisp to give documentation for function FN.
See variable `lisp-function-doc-command'."
(interactive (lisp-symprompt "Function doc" (lisp-fn-called-at-pt)))
(comint-proc-query (inferior-lisp-proc)
(format lisp-function-doc-command fn)))
(defun lisp-show-variable-documentation (var)
"Send a command to the inferior Lisp to give documentation for function FN.
See variable `lisp-var-doc-command'."
(interactive (lisp-symprompt "Variable doc" (lisp-var-at-pt)))
(comint-proc-query (inferior-lisp-proc) (format lisp-var-doc-command var)))
(defun lisp-show-arglist (fn)
"Send a query to the inferior Lisp for the arglist for function FN.
See variable `lisp-arglist-command'."
(interactive (lisp-symprompt "Arglist" (lisp-fn-called-at-pt)))
(comint-proc-query (inferior-lisp-proc) (format lisp-arglist-command fn)))
(defun lisp-describe-sym (sym)
"Send a command to the inferior Lisp to describe symbol SYM.
See variable `lisp-describe-sym-command'."
(interactive (lisp-symprompt "Describe" (lisp-var-at-pt)))
(comint-proc-query (inferior-lisp-proc)
(format lisp-describe-sym-command sym)))
;; "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)
(current-buffer)
inferior-lisp-buffer))))
(or proc
(error "No Lisp subprocess; see variable `inferior-lisp-buffer'"))))
;;; Do the user's customisation...
;;;===============================
(defvar inferior-lisp-load-hook nil
"This hook is run when the library `inf-lisp' is loaded.")
(run-hooks 'inferior-lisp-load-hook)
;;; CHANGE LOG
;;; ===========================================================================
;;; 7/21/92 Jim Blandy
;;; - Changed all uses of the cmulisp name or prefix to inferior-lisp;
;;; 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.
;;; 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.
;;; - Explicit references to process "cmulisp" have been replaced with
;;; (cmulisp-proc). This allows better handling of multiple process bufs.
;;; - Added process query and var/function/symbol documentation
;;; commands. Based on code written by Douglas Roberts.
;;; - Added lisp-eval-last-sexp, bound to C-x C-e.
;;;
;;; 9/20/90 Olin
;;; Added a save-restriction to lisp-fn-called-at-pt. This bug and fix
;;; reported by Lennart Staflin.
;;;
;;; 3/12/90 Olin
;;; - lisp-load-file and lisp-compile-file no longer switch-to-lisp.
;;; Tale suggested this.
;;; - Reversed this decision 7/15/91. You need the visual feedback.
;;;
;;; 7/25/91 Olin
;;; Changed all keybindings of the form C-c <letter>. These are
;;; 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
;;; cmulisp-install-letter-bindings
;;; function.
;;;
;;; 8/2/91 Olin
;;; - The lisp-compile/eval-defun/region commands now take a prefix arg,
;;; which means switch-to-lisp after sending the text to the Lisp process.
;;; This obsoletes all the -and-go commands. The -and-go commands are
;;; kept around for historical reasons, and because the user can bind
;;; them to key sequences shorter than C-u C-c C-<letter>.
;;; - If M-x cmulisp is invoked with a prefix arg, it allows you to
;;; edit the command line.
(provide 'inf-lisp)
;;; arch-tag: 5b74abc3-a085-4b91-8ab8-8da6899d3b92
;;; inf-lisp.el ends here