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-;;; guile-scheme.el --- Guile Scheme editing mode
-
-;; Copyright (C) 2001 Free Software Foundation, Inc.
-
-;; 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., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-
-;; Put the following lines in your ~/.emacs:
-;;
-;; (require 'guile-scheme)
-;; (setq initial-major-mode 'scheme-interaction-mode)
-
-;;; Code:
-
-(require 'guile)
-(require 'scheme)
-
-(defgroup guile-scheme nil
- "Editing Guile-Scheme code"
- :group 'lisp)
-
-(defvar guile-scheme-syntax-keywords
- '((begin 0) (if 1) (cond 0) (case 1) (do 2)
- quote syntax lambda and or else delay receive use-modules
- (match 1) (match-lambda 0) (match-lambda* 0)
- (let scheme-let-indent) (let* 1) (letrec 1) (and-let* 1)
- (let-syntax 1) (letrec-syntax 1) (syntax-rules 1) (syntax-case 2)))
-
-(defvar guile-scheme-special-procedures
- '((catch 1) (lazy-catch 1) (stack-catch 1)
- map for-each (dynamic-wind 3)))
-
-;; set indent functions
-(dolist (x (append guile-scheme-syntax-keywords
- guile-scheme-special-procedures))
- (when (consp x)
- (put (car x) 'scheme-indent-function (cadr x))))
-
-(defconst guile-scheme-font-lock-keywords
- (eval-when-compile
- (list
- (list (concat "(\\(define\\*?\\("
- ;; Function names.
- "\\(\\|-public\\|-method\\|-generic\\)\\|"
- ;; Macro names, as variable names.
- "\\(-syntax\\|-macro\\)\\|"
- ;; Others
- "-\\sw+\\)\\)\\>"
- ;; Any whitespace and declared object.
- "\\s *(?\\(\\sw+\\)?")
- '(1 font-lock-keyword-face)
- '(5 (cond ((match-beginning 3) font-lock-function-name-face)
- ((match-beginning 4) font-lock-variable-name-face)
- (t font-lock-type-face)) nil t))
- (list (concat
- "(" (regexp-opt
- (mapcar (lambda (e)
- (prin1-to-string (if (consp e) (car e) e)))
- (append guile-scheme-syntax-keywords
- guile-scheme-special-procedures)) 'words))
- '(1 font-lock-keyword-face))
- '("<\\sw+>" . font-lock-type-face)
- '("\\<:\\sw+\\>" . font-lock-builtin-face)
- ))
- "Expressions to highlight in Guile Scheme mode.")
-
-
-;;;
-;;; Guile Scheme mode
-;;;
-
-(defvar guile-scheme-mode-map nil
- "Keymap for Guile Scheme mode.
-All commands in `lisp-mode-shared-map' are inherited by this map.")
-
-(unless guile-scheme-mode-map
- (let ((map (make-sparse-keymap "Guile-Scheme")))
- (setq guile-scheme-mode-map map)
- (cond ((boundp 'lisp-mode-shared-map)
- (set-keymap-parent map lisp-mode-shared-map))
- ((boundp 'shared-lisp-mode-map)
- (set-keymap-parent map shared-lisp-mode-map)))
- (define-key map [menu-bar] (make-sparse-keymap))
- (define-key map [menu-bar guile-scheme] (cons "Guile-Scheme" map))
- (define-key map [uncomment-region]
- '("Uncomment Out Region" . (lambda (beg end)
- (interactive "r")
- (comment-region beg end '(4)))))
- (define-key map [comment-region] '("Comment Out Region" . comment-region))
- (define-key map [indent-region] '("Indent Region" . indent-region))
- (define-key map [indent-line] '("Indent Line" . lisp-indent-line))
- (define-key map "\e\C-i" 'guile-scheme-complete-symbol)
- (define-key map "\e\C-x" 'guile-scheme-eval-define)
- (define-key map "\C-x\C-e" 'guile-scheme-eval-last-sexp)
- (define-key map "\C-c\C-b" 'guile-scheme-eval-buffer)
- (define-key map "\C-c\C-r" 'guile-scheme-eval-region)
- (define-key map "\C-c:" 'guile-scheme-eval-expression)
- (define-key map "\C-c\C-a" 'guile-scheme-apropos)
- (define-key map "\C-c\C-d" 'guile-scheme-describe)
- (define-key map "\C-c\C-k" 'guile-scheme-kill-process)
-
- (put 'comment-region 'menu-enable 'mark-active)
- (put 'uncomment-region 'menu-enable 'mark-active)
- (put 'indent-region 'menu-enable 'mark-active)))
-
-(defcustom guile-scheme-mode-hook nil
- "Normal hook run when entering `guile-scheme-mode'."
- :type 'hook
- :group 'guile-scheme)
-
-;;;###autoload
-(defun guile-scheme-mode ()
- "Major mode for editing Guile Scheme code.
-Editing commands are similar to those of `scheme-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)
- (setq mode-name "Guile Scheme")
- (setq major-mode 'guile-scheme-mode)
- (use-local-map guile-scheme-mode-map)
- (scheme-mode-variables)
- (setq mode-line-process
- '(:eval (if (processp guile-scheme-adapter)
- (format " [%s]" guile-scheme-command)
- "")))
- (setq font-lock-defaults
- '((guile-scheme-font-lock-keywords)
- nil t (("+-*/.<>=!?$%_&~^:@" . "w")) beginning-of-defun
- (font-lock-mark-block-function . mark-defun)))
- (run-hooks 'guile-scheme-mode-hook))
-
-
-;;;
-;;; Scheme interaction mode
-;;;
-
-(defvar scheme-interaction-mode-map ()
- "Keymap for Scheme Interaction mode.
-All commands in `guile-scheme-mode-map' are inherited by this map.")
-
-(unless scheme-interaction-mode-map
- (let ((map (make-sparse-keymap)))
- (setq scheme-interaction-mode-map map)
- (set-keymap-parent map guile-scheme-mode-map)
- (define-key map "\C-j" 'guile-scheme-eval-print-last-sexp)
- ))
-
-(defvar scheme-interaction-mode-hook nil
- "Normal hook run when entering `scheme-interaction-mode'.")
-
-(defun scheme-interaction-mode ()
- "Major mode for evaluating Scheme expressions with Guile.
-
-\\{scheme-interaction-mode-map}"
- (interactive)
- (guile-scheme-mode)
- (use-local-map scheme-interaction-mode-map)
- (setq major-mode 'scheme-interaction-mode)
- (setq mode-name "Scheme Interaction")
- (run-hooks 'scheme-interaction-mode-hook))
-
-
-;;;
-;;; Guile Scheme adapter
-;;;
-
-(defvar guile-scheme-command "guile")
-(defvar guile-scheme-adapter nil)
-(defvar guile-scheme-module nil)
-
-(defun guile-scheme-adapter ()
- (if (and (processp guile-scheme-adapter)
- (eq (process-status guile-scheme-adapter) 'run))
- guile-scheme-adapter
- (setq guile-scheme-module nil)
- (setq guile-scheme-adapter
- (guile:make-adapter guile-scheme-command 'emacs-scheme-channel))))
-
-(defun guile-scheme-set-module ()
- "Set the current module based on buffer contents.
-If there is a (define-module ...) form, evaluate it.
-Otherwise, choose module (guile-user)."
- (save-excursion
- (let ((module (if (re-search-backward "^(define-module " nil t)
- (let ((start (match-beginning 0)))
- (goto-char start)
- (forward-sexp)
- (buffer-substring-no-properties start (point)))
- "(define-module (emacs-user))")))
- (unless (string= guile-scheme-module module)
- (prog1 (guile:eval module (guile-scheme-adapter))
- (setq guile-scheme-module module))))))
-
-(defun guile-scheme-eval-string (string)
- (guile-scheme-set-module)
- (guile:eval string (guile-scheme-adapter)))
-
-(defun guile-scheme-display-result (value flag)
- (if (string= value "#<unspecified>")
- (setq value "done"))
- (if flag
- (insert value)
- (message "%s" value)))
-
-
-;;;
-;;; Interactive commands
-;;;
-
-(defun guile-scheme-eval-expression (string)
- "Evaluate the expression in STRING and show value in echo area."
- (interactive "SGuile Scheme Eval: ")
- (guile-scheme-display-result (guile-scheme-eval-string string) nil))
-
-(defun guile-scheme-eval-region (start end)
- "Evaluate the region as Guile Scheme code."
- (interactive "r")
- (guile-scheme-eval-expression (buffer-substring-no-properties start end)))
-
-(defun guile-scheme-eval-buffer ()
- "Evaluate the current buffer as Guile Scheme code."
- (interactive)
- (guile-scheme-eval-expression (buffer-string)))
-
-(defun guile-scheme-eval-last-sexp (arg)
- "Evaluate sexp before point; show value in echo area.
-With argument, print output into current buffer."
- (interactive "P")
- (guile-scheme-display-result
- (guile-scheme-eval-string
- (buffer-substring-no-properties
- (point) (save-excursion (backward-sexp) (point)))) arg))
-
-(defun guile-scheme-eval-print-last-sexp ()
- "Evaluate sexp before point; print value into current buffer."
- (interactive)
- (let ((start (point)))
- (guile-scheme-eval-last-sexp t)
- (insert "\n")
- (save-excursion (goto-char start) (insert "\n"))))
-
-(defun guile-scheme-eval-define ()
- (interactive)
- (guile-scheme-eval-region (save-excursion (end-of-defun) (point))
- (save-excursion (beginning-of-defun) (point))))
-
-(defun guile-scheme-load-file (file)
- "Load a Guile Scheme file."
- (interactive "fGuile Scheme load file: ")
- (guile-scheme-eval-string (format "(load %s)" (expand-file-name file)))
- (message "done"))
-
-(guile-import guile-emacs-complete-alist)
-
-(defun guile-scheme-complete-symbol ()
- (interactive)
- (let* ((end (point))
- (start (save-excursion (skip-syntax-backward "w_") (point)))
- (pattern (buffer-substring-no-properties start end))
- (alist (guile-emacs-complete-alist pattern)))
- (goto-char end)
- (let ((completion (try-completion pattern alist)))
- (cond ((eq completion t))
- ((not completion)
- (message "Can't find completion for \"%s\"" pattern)
- (ding))
- ((not (string= pattern completion))
- (delete-region start end)
- (insert completion))
- (t
- (message "Making completion list...")
- (with-output-to-temp-buffer "*Completions*"
- (display-completion-list alist))
- (message "Making completion list...done"))))))
-
-(guile-import guile-emacs-apropos)
-
-(defun guile-scheme-apropos (regexp)
- (interactive "sGuile Scheme apropos (regexp): ")
- (guile-scheme-set-module)
- (with-output-to-temp-buffer "*Help*"
- (princ (guile-emacs-apropos regexp))))
-
-(guile-import guile-emacs-describe)
-
-(defun guile-scheme-describe (symbol)
- (interactive (list (guile-scheme-input-symbol "Describe Guile variable")))
- (guile-scheme-set-module)
- (with-output-to-temp-buffer "*Help*"
- (princ (guile-emacs-describe symbol))))
-
-(defun guile-scheme-kill-process ()
- (interactive)
- (if guile-scheme-adapter
- (guile-process-kill guile-scheme-adapter))
- (setq guile-scheme-adapter nil))
-
-
-;;;
-;;; Internal functions
-;;;
-
-(guile-import apropos-internal guile-apropos-internal)
-
-(defvar guile-scheme-complete-table (make-vector 151 nil))
-
-(defun guile-scheme-input-symbol (prompt)
- (mapc (lambda (sym)
- (if (symbolp sym)
- (intern (symbol-name sym) guile-scheme-complete-table)))
- (guile-apropos-internal ""))
- (let* ((str (thing-at-point 'symbol))
- (default (if (intern-soft str guile-scheme-complete-table)
- (concat " (default " str ")")
- "")))
- (intern (completing-read (concat prompt default ": ")
- guile-scheme-complete-table nil t nil nil str))))
-
-
-;;;
-;;; Turn on guile-scheme-mode for .scm files by default.
-;;;
-
-(setq auto-mode-alist
- (cons '("\\.scm\\'" . guile-scheme-mode) auto-mode-alist))
-
-(provide 'guile-scheme)
-
-;;; guile-scheme.el ends here