-;;; cmuscheme.el --- Scheme process in a buffer. Adapted from tea.el.
+;;; cmuscheme.el --- Scheme process in a buffer. Adapted from tea.el
-;; Copyright (C) 1988, 1994, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1988, 1994, 1997, 2004 Free Software Foundation, Inc.
;; Author: Olin Shivers <olin.shivers@cs.cmu.edu>
;; Maintainer: FSF
;; character to the scheme process. Cmuscheme mode does *not* provide this
;; functionality. If you are a cscheme user, you may prefer to use the
;; xscheme.el/cscheme -emacs interaction.
-;;
+;;
;; Here's a summary of the pros and cons, as I see them.
;; xscheme: Tightly integrated with inferior cscheme process! A few commands
;; not in cmuscheme. But. Integration is a bit of a hack. Input
;; history only keeps the immediately prior input. Bizarre
;; keybindings.
-;;
+;;
;; cmuscheme: Not tightly integrated with inferior cscheme process. But.
;; Carefully integrated functionality with the entire suite of
;; comint-derived CMU process modes. Keybindings reminiscent of
;; Zwei and Hemlock. Good input history. A few commands not in
;; xscheme.
-;;
+;;
;; It's a tradeoff. Pay your money; take your choice. If you use a Scheme
;; that isn't Cscheme, of course, there isn't a choice. Xscheme.el is *very*
;; Cscheme-specific; you must use cmuscheme.el. Interested parties are
;; invited to port xscheme functionality on top of comint mode...
+;;; CHANGE LOG
+;;; ===========================================================================
+;;; 8/88 Olin
+;;; Created.
+;;;
+;;; 2/15/89 Olin
+;;; Removed -emacs flag from process invocation. It's only useful for
+;;; cscheme, and makes cscheme assume it's running under xscheme.el,
+;;; which messes things up royally. A bug.
+;;;
+;;; 5/22/90 Olin
+;;; - Upgraded to use comint-send-string and comint-send-region.
+;;; - run-scheme now offers to let you edit the command line if
+;;; you invoke it with a prefix-arg. M-x scheme is redundant, and
+;;; has been removed.
+;;; - Explicit references to process "scheme" have been replaced with
+;;; (scheme-proc). This allows better handling of multiple process bufs.
+;;; - Added scheme-send-last-sexp, bound to C-x C-e. A gnu convention.
+;;; - Have not added process query facility a la cmulisp.el's lisp-show-arglist
+;;; and friends, but interested hackers might find a useful application
+;;; of this facility.
+;;;
+;;; 3/12/90 Olin
+;;; - scheme-load-file and scheme-compile-file no longer switch-to-scheme.
+;;; Tale suggested this.
+
;;; Code:
(require 'scheme)
(require 'comint)
+
+(defgroup cmuscheme nil
+ "Run a scheme process in a buffer."
+ :group 'scheme)
+
;;; INFERIOR SCHEME MODE STUFF
;;;============================================================================
-(defvar inferior-scheme-mode-hook nil
- "*Hook for customising inferior-scheme mode.")
-(defvar inferior-scheme-mode-map nil)
+(defcustom inferior-scheme-mode-hook nil
+ "*Hook for customising inferior-scheme mode."
+ :type 'hook
+ :group 'cmuscheme)
-(cond ((not inferior-scheme-mode-map)
- (setq inferior-scheme-mode-map
- (copy-keymap comint-mode-map))
- (define-key inferior-scheme-mode-map "\M-\C-x" ;gnu convention
- 'scheme-send-definition)
- (define-key inferior-scheme-mode-map "\C-x\C-e" 'scheme-send-last-sexp)
- (define-key inferior-scheme-mode-map "\C-c\C-l" 'scheme-load-file)
- (define-key inferior-scheme-mode-map "\C-c\C-k" 'scheme-compile-file)
- (scheme-mode-commands inferior-scheme-mode-map)))
+(defvar inferior-scheme-mode-map
+ (let ((m (make-sparse-keymap)))
+ (define-key m "\M-\C-x" 'scheme-send-definition) ;gnu convention
+ (define-key m "\C-x\C-e" 'scheme-send-last-sexp)
+ (define-key m "\C-c\C-l" 'scheme-load-file)
+ (define-key m "\C-c\C-k" 'scheme-compile-file)
+ (scheme-mode-commands m)
+ m))
;; Install the process communication commands in the scheme-mode keymap.
(define-key scheme-mode-map "\M-\C-x" 'scheme-send-definition);gnu convention
(define-key map [switch]
'("Switch to Scheme" . switch-to-scheme))
(define-key map [com-def-go]
- '("Compile Definitiion & Go" . scheme-compile-definition-and-go))
+ '("Compile Definition & Go" . scheme-compile-definition-and-go))
(define-key map [com-def]
- '("Compile Definitiion" . scheme-compile-definition))
+ '("Compile Definition" . scheme-compile-definition))
(define-key map [send-def-go]
'("Evaluate Last Definition & Go" . scheme-send-definition-and-go))
(define-key map [send-def]
'("Evaluate Last Definition" . scheme-send-definition))
(define-key map [send-region-go]
'("Evaluate Region & Go" . scheme-send-region-and-go))
- (define-key map [send-region-go]
- '("Evaluate Region" . scheme-send-region))
(define-key map [send-region]
'("Evaluate Region" . scheme-send-region))
(define-key map [send-sexp]
(defvar scheme-buffer)
-(defun inferior-scheme-mode ()
+(define-derived-mode inferior-scheme-mode comint-mode "Inferior Scheme"
"Major mode for interacting with an inferior Scheme process.
The following commands are available:
inferior-scheme-mode-hook (in that order).
You can send text to the inferior Scheme process from other buffers containing
-Scheme source.
+Scheme source.
switch-to-scheme switches the current buffer to the Scheme process buffer.
scheme-send-definition sends the current definition to the Scheme process.
scheme-compile-definition compiles the current definition.
documentation for variable scheme-buffer.
Commands:
-Return after the end of the process' output sends the text from the
+Return 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
to the end of the process' output, and sends it.
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)
;; Customise in inferior-scheme-mode-hook
(setq comint-prompt-regexp "^[^>\n]*>+ *") ; OK for cscheme, oaklisp, T,...
(scheme-mode-variables)
- (setq major-mode 'inferior-scheme-mode)
- (setq mode-name "Inferior Scheme")
(setq mode-line-process '(":%s"))
- (use-local-map inferior-scheme-mode-map)
(setq comint-input-filter (function scheme-input-filter))
- (setq comint-get-old-input (function scheme-get-old-input))
- (run-hooks 'inferior-scheme-mode-hook))
+ (setq comint-get-old-input (function scheme-get-old-input)))
-(defvar inferior-scheme-filter-regexp "\\`\\s *\\S ?\\S ?\\s *\\'"
+(defcustom inferior-scheme-filter-regexp "\\`\\s *\\S ?\\S ?\\s *\\'"
"*Input matching this regexp are not saved on the history list.
-Defaults to a regexp ignoring all inputs of 0, 1, or 2 letters.")
+Defaults to a regexp ignoring all inputs of 0, 1, or 2 letters."
+ :type 'regexp
+ :group 'cmuscheme)
(defun scheme-input-filter (str)
- "Don't save anything matching inferior-scheme-filter-regexp"
+ "Don't save anything matching `inferior-scheme-filter-regexp'."
(not (string-match inferior-scheme-filter-regexp str)))
(defun scheme-get-old-input ()
- "Snarf the sexp ending at point"
+ "Snarf the sexp ending at point."
(save-excursion
(let ((end (point)))
(backward-sexp)
(scheme-args-to-list (substring string pos
(length string)))))))))
-(defvar scheme-program-name "scheme"
- "*Program invoked by the run-scheme command")
-
;;;###autoload
(defun run-scheme (cmd)
"Run an inferior Scheme process, input and output via buffer *scheme*.
(interactive)
(scheme-send-region (save-excursion (backward-sexp) (point)) (point)))
-(defvar scheme-compile-exp-command "(compile '%s)"
- "*Template for issuing commands to compile arbitrary Scheme expressions.")
+(defcustom scheme-compile-exp-command "(compile '%s)"
+ "*Template for issuing commands to compile arbitrary Scheme expressions."
+ :type 'string
+ :group 'cmuscheme)
(defun scheme-compile-region (start end)
"Compile the current region in the inferior Scheme process.
(defun switch-to-scheme (eob-p)
"Switch to the scheme process buffer.
-With argument, positions cursor at end of buffer."
+With argument, position cursor at end of buffer."
(interactive "P")
(if (get-buffer scheme-buffer)
(pop-to-buffer scheme-buffer)
- (error "No current process buffer. See variable scheme-buffer."))
+ (error "No current process buffer. See variable `scheme-buffer'"))
(cond (eob-p
(push-mark)
(goto-char (point-max)))))
(switch-to-scheme t))
(defun scheme-send-definition-and-go ()
- "Send the current definition to the inferior Scheme.
+ "Send the current definition to the inferior Scheme.
Then switch to the process buffer."
(interactive)
(scheme-send-definition)
(switch-to-scheme t))
(defun scheme-compile-definition-and-go ()
- "Compile the current definition in the inferior Scheme.
+ "Compile the current definition in the inferior Scheme.
Then switch to the process buffer."
(interactive)
(scheme-compile-definition)
(switch-to-scheme t))
(defun scheme-compile-region-and-go (start end)
- "Compile the current region in the inferior Scheme.
+ "Compile the current region in the inferior Scheme.
Then switch to the process buffer."
(interactive "r")
(scheme-compile-region start end)
(switch-to-scheme t))
-(defvar scheme-source-modes '(scheme-mode)
+(defcustom scheme-source-modes '(scheme-mode)
"*Used to determine if a buffer contains Scheme source code.
If it's loaded into a buffer that is in one of these major modes, it's
-considered a scheme source file by scheme-load-file and scheme-compile-file.
-Used by these commands to determine defaults.")
+considered a scheme source file by `scheme-load-file' and `scheme-compile-file'.
+Used by these commands to determine defaults."
+ :type '(repeat function)
+ :group 'cmuscheme)
(defvar scheme-prev-l/c-dir/file nil
"Caches the last (directory . file) pair.
-Caches the last pair used in the last scheme-load-file or
-scheme-compile-file command. Used for determining the default in the
+Caches the last pair used in the last `scheme-load-file' or
+`scheme-compile-file' command. Used for determining the default in the
next one.")
(defun scheme-load-file (file-name)
- "Load a Scheme file into the inferior Scheme process."
+ "Load a Scheme file FILE-NAME into the inferior Scheme process."
(interactive (comint-get-source "Load Scheme file: " scheme-prev-l/c-dir/file
- scheme-source-modes t)) ; T because LOAD
+ scheme-source-modes t)) ; t because `load'
; needs an exact name
(comint-check-source file-name) ; Check to see if buffer needs saved.
(setq scheme-prev-l/c-dir/file (cons (file-name-directory file-name)
"\"\)\n")))
(defun scheme-compile-file (file-name)
- "Compile a Scheme file in the inferior Scheme process."
+ "Compile a Scheme file FILE-NAME in the inferior Scheme process."
(interactive (comint-get-source "Compile Scheme file: "
scheme-prev-l/c-dir/file
scheme-source-modes
- nil)) ; NIL because COMPILE doesn't
+ nil)) ; nil because COMPILE doesn't
; need an exact name.
(comint-check-source file-name) ; Check to see if buffer needs saved.
(setq scheme-prev-l/c-dir/file (cons (file-name-directory file-name)
MULTIPLE PROCESS SUPPORT
===========================================================================
Cmuscheme.el supports, in a fairly simple fashion, running multiple Scheme
-processes. To run multiple Scheme processes, you start the first up with
-\\[run-scheme]. It will be in a buffer named *scheme*. Rename this buffer
-with \\[rename-buffer]. You may now start up a new process with another
-\\[run-scheme]. It will be in a new buffer, named *scheme*. You can
+processes. To run multiple Scheme processes, you start the first up with
+\\[run-scheme]. It will be in a buffer named *scheme*. Rename this buffer
+with \\[rename-buffer]. You may now start up a new process with another
+\\[run-scheme]. It will be in a new buffer, named *scheme*. You can
switch between the different process buffers with \\[switch-to-buffer].
Commands that send text from source buffers to Scheme processes --
-like scheme-send-definition or scheme-compile-region -- have to choose a
-process to send to, when you have more than one Scheme process around. This
-is determined by the global variable scheme-buffer. Suppose you
+like `scheme-send-definition' or `scheme-compile-region' -- have to choose a
+process to send to, when you have more than one Scheme process around. This
+is determined by the global variable `scheme-buffer'. Suppose you
have three inferior Schemes running:
Buffer Process
foo scheme
If you do a \\[scheme-send-definition-and-go] command on some Scheme source
code, what process do you send it to?
-- If you're in a process buffer (foo, bar, or *scheme*),
+- If you're in a process buffer (foo, bar, or *scheme*),
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 scheme-buffer.
-This process selection is performed by function scheme-proc.
+ send it to the process attached to buffer `scheme-buffer'.
+This process selection is performed by function `scheme-proc'.
-Whenever \\[run-scheme] fires up a new process, it resets scheme-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
-scheme-buffer to another process buffer with \\[set-variable].
+Whenever \\[run-scheme] fires up a new process, it resets `scheme-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
+`scheme-buffer' to another process buffer with \\[set-variable].
-More sophisticated approaches are, of course, possible. If you find yourself
+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 and Scheme processes. The approach taken here is
-for a minimal, simple implementation. Feel free to extend it.")
+for running inferior Lisp and Scheme processes. The approach taken here is
+for a minimal, simple implementation. Feel free to extend it.")
(defun scheme-proc ()
- "Returns the current scheme process. See variable scheme-buffer."
+ "Return the current scheme process. See variable `scheme-buffer'."
(let ((proc (get-buffer-process (if (eq major-mode 'inferior-scheme-mode)
(current-buffer)
scheme-buffer))))
(or proc
- (error "No current process. See variable scheme-buffer"))))
+ (error "No current process. See variable `scheme-buffer'"))))
;;; Do the user's customisation...
-(defvar cmuscheme-load-hook nil
+(defcustom cmuscheme-load-hook nil
"This hook is run when cmuscheme is loaded in.
-This is a good place to put keybindings.")
-
-(run-hooks 'cmuscheme-load-hook)
+This is a good place to put keybindings."
+ :type 'hook
+ :group 'cmuscheme)
-
-;;; CHANGE LOG
-;;; ===========================================================================
-;;; 8/88 Olin
-;;; Created.
-;;;
-;;; 2/15/89 Olin
-;;; Removed -emacs flag from process invocation. It's only useful for
-;;; cscheme, and makes cscheme assume it's running under xscheme.el,
-;;; which messes things up royally. A bug.
-;;;
-;;; 5/22/90 Olin
-;;; - Upgraded to use comint-send-string and comint-send-region.
-;;; - run-scheme now offers to let you edit the command line if
-;;; you invoke it with a prefix-arg. M-x scheme is redundant, and
-;;; has been removed.
-;;; - Explicit references to process "scheme" have been replaced with
-;;; (scheme-proc). This allows better handling of multiple process bufs.
-;;; - Added scheme-send-last-sexp, bound to C-x C-e. A gnu convention.
-;;; - Have not added process query facility a la cmulisp.el's lisp-show-arglist
-;;; and friends, but interested hackers might find a useful application
-;;; of this facility.
-;;;
-;;; 3/12/90 Olin
-;;; - scheme-load-file and scheme-compile-file no longer switch-to-scheme.
-;;; Tale suggested this.
+(run-hooks 'cmuscheme-load-hook)
(provide 'cmuscheme)
+;; arch-tag: e8795f4a-c496-45a2-97b4-8e0f2a2c57d2
;;; cmuscheme.el ends here
HCoop / bpt / emacs.git / blobdiff