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+;; geiser-syntax.el -- guile-specific scheme syntax
+
+;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
+
+;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
+;; Start date: Sun Feb 08, 2009 15:03
+
+;; This file 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 3 of the License, or
+;; (at your option) any later version.
+
+;; This file 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Comentary:
+
+;; Utilities for parsing Guile-specific Scheme syntax.
+
+;;; Code:
+
+(require 'geiser-base)
+
+(require 'scheme)
+
+
+;;; Modules:
+
+(defconst geiser-syntax--module-definition-re
+  "(define-module +\\(([^)]+)\\)")
+
+(defun geiser-syntax--buffer-module (&optional buffer)
+  (let ((buffer (or buffer (current-buffer))))
+    (with-current-buffer buffer
+      (save-excursion
+        (goto-char (point-min))
+        (if (re-search-forward geiser-syntax--module-definition-re nil t)
+            (match-string-no-properties 1)
+          "#f")))))
+
+;;; Indentation:
+
+(defun geiser-syntax--setup-scheme-indent ()
+  (let ((defuns '(catch)))
+    (mapc (lambda (d) (put d 'scheme-indent-function 'defun)) defuns)))
+
+
+;;; Code parsing:
+
+(defun geiser-syntax--enclosing-form-data ()
+  (save-excursion
+    (let ((p (progn (ignore-errors
+                      (unless (zerop (car (syntax-after (point))))
+                        (forward-sexp)
+                        (when (= 7 (car (syntax-after (point))))
+                          (forward-char))))
+                    (point)))
+          (arg-no 0)
+          (proc))
+      (condition-case nil
+          (progn (backward-up-list)
+                 (forward-char)
+                 (setq proc (symbol-at-point))
+                 (while (< (point) p)
+                   (forward-sexp)
+                   (when (< (point) p) (setq arg-no (1+ arg-no))))
+                 (cons proc arg-no))
+        (error nil)))))
+
+
+;;; Fontify strings as Scheme code:
+
+(defun geiser-syntax--font-lock-buffer ()
+  (let ((name " *geiser font lock*"))
+    (or (get-buffer name)
+        (let ((buffer (get-buffer-create name)))
+          (set-buffer buffer)
+          (scheme-mode)
+          buffer))))
+
+(defun geiser-syntax--scheme-str (str)
+  (save-current-buffer
+    (set-buffer (geiser-syntax--font-lock-buffer))
+    (erase-buffer)
+    (insert str)
+    (let ((font-lock-verbose nil)) (font-lock-fontify-buffer))
+    (buffer-string)))
+
+
+(provide 'geiser-syntax)
+;;; geiser-syntax.el ends here