;;; inf-lisp.el --- an inferior-lisp mode
-;;; Copyright (C) 1988 Free Software Foundation, Inc.
+
+;; Copyright (C) 1988, 1993, 1994 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 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.
+;; 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; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; 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?
-
-;; YOUR .EMACS FILE
-;;=============================================================================
-;; Some suggestions for your .emacs file.
-;;
-;; ; If inferior-lisp lives in some non-standard directory, you must tell emacs
-;; ; where to get it. This may or may not be necessary.
-;; (setq load-path (cons (expand-file-name "~jones/lib/emacs") load-path))
+;; 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, ...).
;;
-;; ; Autoload inferior-lisp from file inf-lisp.el
-;; (autoload 'inferior-lisp "inferior-lisp"
-;; "Run an inferior Lisp process."
-;; t)
+;; 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?
;;
-;; ; Define C-c t to run my favorite command in inferior-lisp mode:
-;; (setq inferior-lisp-load-hook
-;; '((lambda ()
-;; (define-key inferior-lisp-mode-map "\C-ct" 'favorite-cmd))))
-
-\f
-;;; Brief Command Documentation:
-;;;============================================================================
-;;; Comint Mode Commands: (common to inferior-lisp and all
-;;; comint-derived modes)
-;;;
-;;; m-p comint-previous-input Cycle backwards in input history
-;;; m-n comint-next-input Cycle forwards
-;;; m-c-r comint-previous-input-matching Search backwards in input history
-;;; return comint-send-input
-;;; c-a comint-bol Beginning of line; skip prompt.
-;;; c-d comint-delchar-or-maybe-eof Delete char unless at end of buff.
-;;; c-c c-u comint-kill-input ^u
-;;; c-c c-w backward-kill-word ^w
-;;; c-c c-c comint-interrupt-subjob ^c
-;;; c-c c-z comint-stop-subjob ^z
-;;; c-c c-\ comint-quit-subjob ^\
-;;; c-c c-o comint-kill-output Delete last batch of process output
-;;; c-c c-r comint-show-output Show last batch of process output
-;;; send-invisible Read line w/o echo & send to proc
-;;; comint-continue-subjob Useful if you accidentally suspend
-;;; top-level job.
-;;; comint-mode-hook is the comint mode hook.
-
-;;; Inferior Lisp Mode Commands:
-;;; c-m-x lisp-send-defun This binding is a gnu convention.
-;;; c-c c-l lisp-load-file Prompt for file name; tell Lisp to load it.
-;;; c-c c-k lisp-compile-file Prompt for file name; tell Lisp to kompile it.
-;;; Filename completion is available, of course.
-;;;
-;;; Additionally, these commands are added to the key bindings of Lisp mode:
-;;; c-m-x lisp-eval-defun This binding is a gnu convention.
-;;; c-c c-e lisp-eval-defun Send the current defun to Lisp process.
-;;; c-x c-e lisp-eval-last-sexp Send the previous sexp to Lisp process.
-;;; c-c c-r lisp-eval-region Send the current region to Lisp process.
-;;; c-c c-c lisp-compile-defun Compile the current defun in Lisp process.
-;;; c-c c-z switch-to-lisp Switch to the Lisp process buffer.
-;;; c-c c-l lisp-load-file (See above. In a Lisp file buffer, default
-;;; c-c c-k lisp-compile-file is to load/compile the current file.)
-;;; c-c c-d lisp-describe-sym Query Lisp for a symbol's description.
-;;; c-c c-a lisp-show-arglist Query Lisp for function's arglist.
-;;; c-c c-f lisp-show-function-documentation Query Lisp for a function's doc.
-;;; c-c c-v lisp-show-variable-documentation Query Lisp for a variable's doc.
-
-;;; inferior-lisp Fires up the Lisp process.
-;;; lisp-compile-region Compile all forms in the current region.
-;;;
-;;; Inferior Lisp Mode Variables:
-;;; inferior-lisp-filter-regexp Match this => don't get saved on input hist
-;;; inferior-lisp-program Name of Lisp program run-lisp executes
-;;; inferior-lisp-load-command Customises lisp-load-file
-;;; inferior-lisp-mode-hook
-;;; inferior-lisp-prompt Initialises comint-prompt-regexp.
-;;; Backwards compatibility.
-;;; lisp-source-modes Anything loaded into a buffer that's in
-;;; one of these modes is considered Lisp
-;;; source by lisp-load/compile-file.
-
-;;; Read the rest of this file for more information.
+;; 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:
\f
;;;###autoload
(defvar 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 :keyword
-(as in :a, :c, etc.)")
+ "*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
- (full-copy-sparse-keymap comint-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)
;;; 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:
+;;; (setq 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 ()
- "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:
- (setq inferior-lisp-load-hook '(inferior-lisp-install-letter-bindings))
-You can modify this function to install just the bindings you want."
-
(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)
;;;###autoload
(defvar inferior-lisp-program "lisp"
- "*Program name for invoking an inferior Lisp with `inferior-lisp'.")
+ "*Program name for invoking an inferior Lisp with for Inferior Lisp mode.")
;;;###autoload
(defvar 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
+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.")
;;;###autoload
-(defvar inferior-lisp-prompt "^[^> ]*>+:? *"
- "Regexp to recognise prompts in the inferior Lisp.
-Defaults to \"^[^> ]*>+:? *\", which works pretty good for Lucid, kcl,
-and franz. This variable is used to initialise comint-prompt-regexp in the
-inferior-lisp buffer.
+(defvar inferior-lisp-prompt "^[^> \n]*>+:? *"
+ "Regexp to recognise 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.
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.")
+(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")
+ "*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
+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.
+documentation for variable `inferior-lisp-buffer'.
\\{inferior-lisp-mode-map}
-Customisation: Entry to this mode runs the hooks on comint-mode-hook and
-inferior-lisp-mode-hook (in that order).
+Customisation: 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.
(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))
(run-hooks 'inferior-lisp-mode-hook))
(defun lisp-get-old-input ()
- "Snarf the sexp ending at point"
+ "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)
- "Don't save anything matching inferior-lisp-filter-regexp"
+ "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
+ "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).
+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" (car cmdlist) nil (cdr cmdlist)))
(inferior-lisp-mode)))
(setq inferior-lisp-buffer "*inferior-lisp*")
- (switch-to-buffer "*inferior-lisp*"))
+ (pop-to-buffer "*inferior-lisp*"))
+;;;###autoload (add-hook 'same-window-buffer-names "*inferior-lisp*")
-(fset 'run-lisp '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
(defun lisp-eval-region (start end &optional and-go)
"Send the current region to the inferior Lisp process.
-Prefix argument means switch-to-lisp afterwards."
+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")
(defun lisp-eval-defun (&optional and-go)
"Send the current defun to the inferior Lisp process.
-Prefix argument means switch-to-lisp afterwards."
+Prefix argument means switch to the Lisp buffer afterwards."
(interactive "P")
(save-excursion
(end-of-defun)
(defun lisp-eval-last-sexp (&optional and-go)
"Send the previous sexp to the inferior Lisp process.
-Prefix argument means switch-to-lisp afterwards."
+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-lisp afterwards."
+Prefix argument means switch to the Lisp buffer afterwards."
(interactive "r\nP")
(comint-send-string
(inferior-lisp-proc)
(defun lisp-compile-defun (&optional and-go)
"Compile the current defun in the inferior Lisp process.
-Prefix argument means switch-to-lisp afterwards."
+Prefix argument means switch to the Lisp buffer afterwards."
(interactive "P")
(save-excursion
(end-of-defun)
"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 process buffer. See variable 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,
;;; 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 the process buffer."
+ "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 the process buffer."
+ "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 the process buffer."
+ "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 the process buffer."
+ "Compile the current defun in the inferior Lisp, and switch to its buffer."
(interactive)
(lisp-compile-defun t))
(defvar lisp-prev-l/c-dir/file nil
- "Saves the (directory . file) pair used in the last lisp-load-file or
-lisp-compile-file command. Used for determining the default in the
-next one.")
+ "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.")
(defvar 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.
+considered a Lisp source file by `lisp-load-file' and `lisp-compile-file'.
Used by these commands to determine defaults.")
(defun lisp-load-file (file-name)
;;; 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.
-Nil if it can't find one."
+The value is nil if it can't find one."
(condition-case nil
(save-excursion
(save-restriction
(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."
+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."
+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)
- "Sends an query to the inferior Lisp for the arglist for function FN.
-See variable lisp-arglist-command."
+ "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."
+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)))
\f
-(defvar inferior-lisp-buffer nil "*The current inferior-lisp process buffer.
-
-MULTIPLE PROCESS SUPPORT
-===========================================================================
-Inf-lisp.el supports, in a fairly simple fashion, running multiple
-Lisp processes. 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 will do the right thing. If you run multiple
-processes, you can change inferior-lisp-buffer to another process
-buffer with \\[set-variable].
-
-More sophisticated approaches are, of course, possible. If you find yourself
-needing to switch back and forth between multiple processes frequently,
-you may wish to consider ilisp.el, a larger, more sophisticated package
-for running inferior Lisp processes. The approach taken here is for a
-minimal, simple implementation. Feel free to extend it.")
-
+;; "Returns the current inferior Lisp process.
+;; See variable `inferior-lisp-buffer'."
(defun inferior-lisp-proc ()
- "Returns the current inferior-lisp process. See variable inferior-lisp-buffer."
(let ((proc (get-buffer-process (if (eq major-mode 'inferior-lisp-mode)
(current-buffer)
inferior-lisp-buffer))))
(or proc
- (error "No current process. See variable inferior-lisp-buffer"))))
+ (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 inferior-lisp is loaded in.
+ "This hook is run when the library `inf-lisp' is loaded.
This is a good place to put keybindings.")
(run-hooks 'inferior-lisp-load-hook)