;;; scheme.el --- Scheme (and DSSSL) editing mode
-;; Copyright (C) 1986, 87, 88, 97, 1998 Free Software Foundation, Inc.
+;; Copyright (C) 1986, 1987, 1988, 1997, 1998, 2005
+;; Free Software Foundation, Inc.
;; Author: Bill Rozas <jinx@martigny.ai.mit.edu>
;; Adapted-by: Dave Love <d.love@dl.ac.uk>
\f
(require 'lisp-mode)
-(defvar scheme-mode-syntax-table nil)
-(if (not scheme-mode-syntax-table)
- (let ((i 0))
- (setq scheme-mode-syntax-table (make-syntax-table))
- (set-syntax-table scheme-mode-syntax-table)
-
- ;; Default is atom-constituent.
- (while (< i 256)
- (modify-syntax-entry i "_ ")
- (setq i (1+ i)))
-
- ;; Word components.
- (setq i ?0)
- (while (<= i ?9)
- (modify-syntax-entry i "w ")
- (setq i (1+ i)))
- (setq i ?A)
- (while (<= i ?Z)
- (modify-syntax-entry i "w ")
- (setq i (1+ i)))
- (setq i ?a)
- (while (<= i ?z)
- (modify-syntax-entry i "w ")
- (setq i (1+ i)))
-
- ;; Whitespace
- (modify-syntax-entry ?\t " ")
- (modify-syntax-entry ?\n "> ")
- (modify-syntax-entry ?\f " ")
- (modify-syntax-entry ?\r " ")
- (modify-syntax-entry ? " ")
-
- ;; These characters are delimiters but otherwise undefined.
- ;; Brackets and braces balance for editing convenience.
- (modify-syntax-entry ?\[ "(] ")
- (modify-syntax-entry ?\] ")[ ")
- (modify-syntax-entry ?{ "(} ")
- (modify-syntax-entry ?} "){ ")
- (modify-syntax-entry ?\| " 23")
-
- ;; Other atom delimiters
- (modify-syntax-entry ?\( "() ")
- (modify-syntax-entry ?\) ")( ")
- (modify-syntax-entry ?\; "< ")
- (modify-syntax-entry ?\" "\" ")
- (modify-syntax-entry ?' " p")
- (modify-syntax-entry ?` " p")
-
- ;; Special characters
- (modify-syntax-entry ?, "_ p")
- (modify-syntax-entry ?@ "_ p")
- (modify-syntax-entry ?# "_ p14")
- (modify-syntax-entry ?\\ "\\ ")))
+(defvar scheme-mode-syntax-table
+ (let ((st (make-syntax-table))
+ (i 0))
+
+ ;; Default is atom-constituent.
+ (while (< i 256)
+ (modify-syntax-entry i "_ " st)
+ (setq i (1+ i)))
+
+ ;; Word components.
+ (setq i ?0)
+ (while (<= i ?9)
+ (modify-syntax-entry i "w " st)
+ (setq i (1+ i)))
+ (setq i ?A)
+ (while (<= i ?Z)
+ (modify-syntax-entry i "w " st)
+ (setq i (1+ i)))
+ (setq i ?a)
+ (while (<= i ?z)
+ (modify-syntax-entry i "w " st)
+ (setq i (1+ i)))
+
+ ;; Whitespace
+ (modify-syntax-entry ?\t " " st)
+ (modify-syntax-entry ?\n "> " st)
+ (modify-syntax-entry ?\f " " st)
+ (modify-syntax-entry ?\r " " st)
+ (modify-syntax-entry ? " " st)
+
+ ;; These characters are delimiters but otherwise undefined.
+ ;; Brackets and braces balance for editing convenience.
+ (modify-syntax-entry ?\[ "(] " st)
+ (modify-syntax-entry ?\] ")[ " st)
+ (modify-syntax-entry ?{ "(} " st)
+ (modify-syntax-entry ?} "){ " st)
+ (modify-syntax-entry ?\| " 23" st)
+
+ ;; Other atom delimiters
+ (modify-syntax-entry ?\( "() " st)
+ (modify-syntax-entry ?\) ")( " st)
+ (modify-syntax-entry ?\; "< " st)
+ (modify-syntax-entry ?\" "\" " st)
+ (modify-syntax-entry ?' "' " st)
+ (modify-syntax-entry ?` "' " st)
+
+ ;; Special characters
+ (modify-syntax-entry ?, "' " st)
+ (modify-syntax-entry ?@ "' " st)
+ (modify-syntax-entry ?# "' 14" st)
+ (modify-syntax-entry ?\\ "\\ " st)
+ st))
\f
(defvar scheme-mode-abbrev-table nil)
(define-abbrev-table 'scheme-mode-abbrev-table ())
(setq outline-regexp ";;; \\|(....")
(make-local-variable 'comment-start)
(setq 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 font-lock-defaults
'((scheme-font-lock-keywords
scheme-font-lock-keywords-1 scheme-font-lock-keywords-2)
- nil t (("+-*/.<>=!?$%_&~^:" . "w")) beginning-of-defun
- (font-lock-mark-block-function . mark-defun))))
+ nil t (("+-*/.<>=!?$%_&~^:#" . "w")) beginning-of-defun
+ (font-lock-mark-block-function . mark-defun)
+ (font-lock-syntactic-face-function . lisp-font-lock-syntactic-face-function))))
(defvar scheme-mode-line-process "")
-(defvar scheme-mode-map nil
- "Keymap for Scheme mode.
-All commands in `lisp-mode-shared-map' are inherited by this map.")
-
-(unless scheme-mode-map
- (let ((map (make-sparse-keymap "Scheme")))
- (setq scheme-mode-map (make-sparse-keymap))
- (set-keymap-parent scheme-mode-map lisp-mode-shared-map)
- (define-key scheme-mode-map [menu-bar] (make-sparse-keymap))
- (define-key scheme-mode-map [menu-bar scheme]
- (cons "Scheme" map))
+(defvar scheme-mode-map
+ (let ((smap (make-sparse-keymap))
+ (map (make-sparse-keymap "Scheme")))
+ (set-keymap-parent smap lisp-mode-shared-map)
+ (define-key smap [menu-bar scheme] (cons "Scheme" map))
(define-key map [run-scheme] '("Run Inferior Scheme" . run-scheme))
(define-key map [uncomment-region]
'("Uncomment Out Region" . (lambda (beg end)
(define-key map [indent-line] '("Indent Line" . lisp-indent-line))
(put 'comment-region 'menu-enable 'mark-active)
(put 'uncomment-region 'menu-enable 'mark-active)
- (put 'indent-region 'menu-enable 'mark-active)))
+ (put 'indent-region 'menu-enable 'mark-active)
+ smap)
+ "Keymap for Scheme mode.
+All commands in `lisp-mode-shared-map' are inherited by this map.")
;; Used by cmuscheme
(defun scheme-mode-commands (map)
if that value is non-nil."
(interactive)
(kill-all-local-variables)
- (scheme-mode-initialize)
- (scheme-mode-variables)
- (run-hooks 'scheme-mode-hook))
-
-(defun scheme-mode-initialize ()
(use-local-map scheme-mode-map)
(setq major-mode 'scheme-mode)
- (setq mode-name "Scheme"))
+ (setq mode-name "Scheme")
+ (scheme-mode-variables)
+ (run-mode-hooks 'scheme-mode-hook))
(defgroup scheme nil
"Editing Scheme code"
"do" "else" "for-each" "if" "lambda"
"let" "let*" "let-syntax" "letrec" "letrec-syntax"
;; Hannes Haug <hannes.haug@student.uni-tuebingen.de> wants:
- "and" "or" "delay"
+ "and" "or" "delay" "force"
;; Stefan Monnier <stefan.monnier@epfl.ch> says don't bother:
;;"quasiquote" "quote" "unquote" "unquote-splicing"
"map" "syntax" "syntax-rules") t)
"\\>") 1)
;;
+ ;; It wouldn't be Scheme w/o named-let.
+ '("(let\\s-+\\(\\sw+\\)"
+ (1 font-lock-function-name-face))
+ ;;
;; David Fox <fox@graphics.cs.nyu.edu> for SOS/STklos class specifiers.
'("\\<<\\sw+>\\>" . font-lock-type-face)
;;
- ;; Scheme `:' keywords as builtins.
- '("\\<:\\sw+\\>" . font-lock-builtin-face)
+ ;; Scheme `:' and `#:' keywords as builtins.
+ '("\\<#?:\\sw+\\>" . font-lock-builtin-face)
)))
"Gaudy expressions to highlight in Scheme modes.")
"Default expressions to highlight in Scheme modes.")
;;;###autoload
-(defun dsssl-mode ()
+(define-derived-mode dsssl-mode scheme-mode "DSSSL"
"Major mode for editing DSSSL code.
Editing commands are similar to those of `lisp-mode'.
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."
- (interactive)
- (kill-all-local-variables)
- (use-local-map scheme-mode-map)
- (scheme-mode-initialize)
(make-local-variable 'page-delimiter)
(setq page-delimiter "^;;;" ; ^L not valid SGML char
major-mode 'dsssl-mode
mode-name "DSSSL")
;; Insert a suitable SGML declaration into an empty buffer.
+ ;; FIXME: This should use `auto-insert-alist' instead.
(and (zerop (buffer-size))
(stringp dsssl-sgml-declaration)
(not buffer-read-only)
(insert dsssl-sgml-declaration))
- (scheme-mode-variables)
(setq font-lock-defaults '(dsssl-font-lock-keywords
nil t (("+-*/.<>=?$%_&~^:" . "w"))
beginning-of-defun
(set (make-local-variable 'imenu-case-fold-search) nil)
(setq imenu-generic-expression dsssl-imenu-generic-expression)
(set (make-local-variable 'imenu-syntax-alist)
- '(("+-*/.<>=?$%_&~^:" . "w")))
- (run-hooks 'scheme-mode-hook)
- (run-hooks 'dsssl-mode-hook))
+ '(("+-*/.<>=?$%_&~^:" . "w"))))
;; Extra syntax for DSSSL. This isn't separated from Scheme, but
;; shouldn't cause much trouble in scheme-mode.
(put 'let-syntax 'scheme-indent-function 1)
(put 'letrec-syntax 'scheme-indent-function 1)
(put 'syntax-rules 'scheme-indent-function 1)
-
+(put 'syntax-case 'scheme-indent-function 2) ; not r5rs
(put 'call-with-input-file 'scheme-indent-function 1)
(put 'with-input-from-file 'scheme-indent-function 1)
(provide 'scheme)
+;; arch-tag: a8f06bc1-ad11-42d2-9e36-ce651df37a90
;;; scheme.el ends here
HCoop / bpt / emacs.git / blobdiff