;;; scheme.el --- Scheme (and DSSSL) editing mode
-;; Copyright (C) 1986, 1987, 1988, 1997, 1998, 2001, 2002, 2003, 2004, 2005,
-;; 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 1986-1988, 1997-1998, 2001-2011 Free Software Foundation, Inc.
;; Author: Bill Rozas <jinx@martigny.ai.mit.edu>
;; Adapted-by: Dave Love <d.love@dl.ac.uk>
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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.
+;; 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
;; 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.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; for instance, at <URL:http://www.sil.org/sgml/related.html#dsssl>.]
;; All these Lisp-ish modes vary basically in details of the language
;; syntax they highlight/indent/index, but dsssl-mode uses "^;;;" as
-;; the page-delimiter since ^L isn't normally a legal SGML character.
+;; the page-delimiter since ^L isn't normally a valid SGML character.
;;
;; For interacting with a Scheme interpreter See also `run-scheme' in
;; the `cmuscheme' package and also the implementation-specific
;; Special characters
(modify-syntax-entry ?, "' " st)
(modify-syntax-entry ?@ "' " st)
- (modify-syntax-entry ?# "' 14b" st)
+ (modify-syntax-entry ?# "' 14" st)
(modify-syntax-entry ?\\ "\\ " st)
st))
\f
(defun scheme-mode-variables ()
(set-syntax-table scheme-mode-syntax-table)
(setq local-abbrev-table scheme-mode-abbrev-table)
- (make-local-variable 'paragraph-start)
- (setq paragraph-start (concat "$\\|" page-delimiter))
- (make-local-variable 'paragraph-separate)
- (setq paragraph-separate paragraph-start)
- (make-local-variable 'paragraph-ignore-fill-prefix)
- (setq paragraph-ignore-fill-prefix t)
- (make-local-variable 'fill-paragraph-function)
- (setq fill-paragraph-function 'lisp-fill-paragraph)
+ (set (make-local-variable 'paragraph-start) (concat "$\\|" page-delimiter))
+ (set (make-local-variable 'paragraph-separate) paragraph-start)
+ (set (make-local-variable 'paragraph-ignore-fill-prefix) t)
+ (set (make-local-variable 'fill-paragraph-function) 'lisp-fill-paragraph)
;; Adaptive fill mode gets in the way of auto-fill,
;; and should make no difference for explicit fill
;; because lisp-fill-paragraph should do the job.
- (make-local-variable 'adaptive-fill-mode)
- (setq adaptive-fill-mode nil)
- (make-local-variable 'normal-auto-fill-function)
- (setq normal-auto-fill-function 'lisp-mode-auto-fill)
- (make-local-variable 'indent-line-function)
- (setq indent-line-function 'lisp-indent-line)
- (make-local-variable 'parse-sexp-ignore-comments)
- (setq parse-sexp-ignore-comments t)
- (make-local-variable 'outline-regexp)
- (setq outline-regexp ";;; \\|(....")
- (make-local-variable 'comment-start)
- (setq comment-start ";")
+ (set (make-local-variable 'adaptive-fill-mode) nil)
+ (set (make-local-variable 'indent-line-function) 'lisp-indent-line)
+ (set (make-local-variable 'parse-sexp-ignore-comments) t)
+ (set (make-local-variable 'outline-regexp) ";;; \\|(....")
+ (set (make-local-variable 'comment-start) ";")
(set (make-local-variable 'comment-add) 1)
- (make-local-variable 'comment-start-skip)
;; Look within the line for a ; following an even number of backslashes
;; after either a non-backslash or the line beginning.
- (setq comment-start-skip "\\(\\(^\\|[^\\\\\n]\\)\\(\\\\\\\\\\)*\\);+[ \t]*")
- (make-local-variable 'comment-column)
- (setq comment-column 40)
- (make-local-variable 'parse-sexp-ignore-comments)
- (setq parse-sexp-ignore-comments t)
- (make-local-variable 'lisp-indent-function)
- (setq lisp-indent-function 'scheme-indent-function)
+ (set (make-local-variable 'comment-start-skip)
+ "\\(\\(^\\|[^\\\\\n]\\)\\(\\\\\\\\\\)*\\);+[ \t]*")
+ (set (make-local-variable 'font-lock-comment-start-skip) ";+ *")
+ (set (make-local-variable 'comment-column) 40)
+ (set (make-local-variable 'parse-sexp-ignore-comments) t)
+ (set (make-local-variable 'lisp-indent-function) 'scheme-indent-function)
(setq mode-line-process '("" scheme-mode-line-process))
(set (make-local-variable 'imenu-case-fold-search) t)
(setq imenu-generic-expression scheme-imenu-generic-expression)
(define-key map "\e\C-q" 'indent-sexp))
\f
;;;###autoload
-(defun scheme-mode ()
+(define-derived-mode scheme-mode prog-mode "Scheme"
"Major mode for editing Scheme code.
Editing commands are similar to those of `lisp-mode'.
\\{scheme-mode-map}
Entry to this mode calls the value of `scheme-mode-hook'
if that value is non-nil."
- (interactive)
- (kill-all-local-variables)
- (use-local-map scheme-mode-map)
- (setq major-mode 'scheme-mode)
- (setq mode-name "Scheme")
- (scheme-mode-variables)
- (run-mode-hooks 'scheme-mode-hook))
+ (scheme-mode-variables))
(defgroup scheme nil
"Editing Scheme code."
"call-with-input-file" "call-with-output-file" "case" "cond"
"do" "else" "for-each" "if" "lambda"
"let" "let*" "let-syntax" "letrec" "letrec-syntax"
+ ;; SRFI 11 usage comes up often enough.
+ "let-values" "let*-values"
;; Hannes Haug <hannes.haug@student.uni-tuebingen.de> wants:
"and" "or" "delay" "force"
;; Stefan Monnier <stefan.monnier@epfl.ch> says don't bother:
Entering this mode runs the hooks `scheme-mode-hook' and then
`dsssl-mode-hook' and inserts the value of `dsssl-sgml-declaration' if
that variable's value is a string."
- (make-local-variable 'page-delimiter)
- (setq page-delimiter "^;;;" ; ^L not valid SGML char
- major-mode 'dsssl-mode
- mode-name "DSSSL")
+ (set (make-local-variable 'page-delimiter) "^;;;") ; ^L not valid SGML char
;; Insert a suitable SGML declaration into an empty buffer.
;; FIXME: This should use `auto-insert-alist' instead.
(and (zerop (buffer-size))
(put 'let 'scheme-indent-function 'scheme-let-indent)
(put 'let* 'scheme-indent-function 1)
(put 'letrec 'scheme-indent-function 1)
+(put 'let-values 'scheme-indent-function 1) ; SRFI 11
+(put 'let*-values 'scheme-indent-function 1) ; SRFI 11
(put 'sequence 'scheme-indent-function 0) ; SICP, not r4rs
(put 'let-syntax 'scheme-indent-function 1)
(put 'letrec-syntax 'scheme-indent-function 1)
(provide 'scheme)
-;; arch-tag: a8f06bc1-ad11-42d2-9e36-ce651df37a90
;;; scheme.el ends here