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-;;; mim-syntax.el --- syntax checker for Mim (MDL).
-
-;; Copyright (C) 1985 Free Software Foundation, Inc.
-
-;; Author: K. Shane Hartman
-;; Maintainer: FSF
-;; Keywords: languages
-
-;; This file is part of GNU Emacs.
-
-;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-;;; Code:
-
-(require 'mim-mode)
-
-(defun slow-syntax-check-mim ()
- "Check Mim syntax slowly.
-Points out the context of the error, if the syntax is incorrect."
- (interactive)
- (message "checking syntax...")
- (let ((stop (point-max)) point-stack current last-bracket whoops last-point)
- (save-excursion
- (goto-char (point-min))
- (while (and (not whoops)
- (re-search-forward "\\s(\\|\\s)\\|\"\\|[\\]" stop t))
- (setq current (preceding-char))
- (cond ((= current ?\")
- (condition-case nil
- (progn (re-search-forward "[^\\]\"")
- (setq current nil))
- (error (setq whoops (point)))))
- ((= current ?\\)
- (condition-case nil (forward-char 1) (error nil)))
- ((= (char-syntax current) ?\))
- (if (or (not last-bracket)
- (not (= (logand (lsh (aref (syntax-table) last-bracket) -8)
- ?\177)
- current)))
- (setq whoops (point))
- (setq last-point (car point-stack))
- (setq last-bracket (if last-point (char-after (1- last-point))))
- (setq point-stack (cdr point-stack))))
- (t
- (if last-point (setq point-stack (cons last-point point-stack)))
- (setq last-point (point))
- (setq last-bracket current)))))
- (cond ((not (or whoops last-point))
- (message "Syntax correct"))
- (whoops
- (goto-char whoops)
- (cond ((equal current ?\")
- (error "Unterminated string"))
- ((not last-point)
- (error "Extraneous %s" (char-to-string current)))
- (t
- (error "Mismatched %s with %s"
- (save-excursion
- (setq whoops (1- (point)))
- (goto-char (1- last-point))
- (buffer-substring (point)
- (min (progn (end-of-line) (point))
- whoops)))
- (char-to-string current)))))
- (t
- (goto-char last-point)
- (error "Unmatched %s" (char-to-string last-bracket))))))
-
-(defun fast-syntax-check-mim ()
- "Checks Mim syntax quickly.
-Answers correct or incorrect, cannot point out the error context."
- (interactive)
- (save-excursion
- (goto-char (point-min))
- (let (state)
- (while (and (not (eobp))
- (equal (car (setq state (parse-partial-sexp (point) (point-max) 0)))
- 0)))
- (if (equal (car state) 0)
- (message "Syntax correct")
- (error "Syntax incorrect")))))
-
-;;; mim-syntax.el ends here