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Annotation of GNUtools/emacs/lisp/mim-syntax.el, revision 1.1

1.1     ! root        1: ;; Syntax checker for Mim (MDL).
        !             2: ;; Copyright (C) 1985 Free Software Foundation, Inc.
        !             3: ;; Principal author K. Shane Hartman
        !             4: 
        !             5: ;; This file is part of GNU Emacs.
        !             6: 
        !             7: ;; GNU Emacs is free software; you can redistribute it and/or modify
        !             8: ;; it under the terms of the GNU General Public License as published by
        !             9: ;; the Free Software Foundation; either version 1, or (at your option)
        !            10: ;; any later version.
        !            11: 
        !            12: ;; GNU Emacs is distributed in the hope that it will be useful,
        !            13: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15: ;; GNU General Public License for more details.
        !            16: 
        !            17: ;; You should have received a copy of the GNU General Public License
        !            18: ;; along with GNU Emacs; see the file COPYING.  If not, write to
        !            19: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
        !            20: 
        !            21: 
        !            22: (require 'mim-mode)
        !            23: 
        !            24: (defun slow-syntax-check-mim ()
        !            25:   "Check Mim syntax slowly.
        !            26: Points out the context of the error, if the syntax is incorrect."
        !            27:   (interactive)
        !            28:   (message "checking syntax...")
        !            29:   (let ((stop (point-max)) point-stack current last-bracket whoops last-point)
        !            30:     (save-excursion
        !            31:       (goto-char (point-min))
        !            32:       (while (and (not whoops)
        !            33:                  (re-search-forward "\\s(\\|\\s)\\|\"\\|[\\]" stop t))
        !            34:        (setq current (preceding-char))
        !            35:        (cond ((= current ?\")
        !            36:               (condition-case nil
        !            37:                   (progn (re-search-forward "[^\\]\"")
        !            38:                          (setq current nil))
        !            39:                 (error (setq whoops (point)))))
        !            40:              ((= current ?\\)
        !            41:               (condition-case nil (forward-char 1) (error nil)))
        !            42:              ((= (char-syntax current) ?\))
        !            43:               (if (or (not last-bracket)
        !            44:                       (not (= (logand (lsh (aref (syntax-table) last-bracket) -8)
        !            45:                                       ?\177)
        !            46:                               current)))
        !            47:                   (setq whoops (point))
        !            48:                 (setq last-point (car point-stack))
        !            49:                 (setq last-bracket (if last-point (char-after (1- last-point))))
        !            50:                 (setq point-stack (cdr point-stack))))
        !            51:              (t
        !            52:               (if last-point (setq point-stack (cons last-point point-stack)))
        !            53:               (setq last-point (point))
        !            54:               (setq last-bracket current)))))
        !            55:     (cond ((not (or whoops last-point))
        !            56:           (message "Syntax correct"))
        !            57:          (whoops
        !            58:           (goto-char whoops)
        !            59:           (cond ((equal current ?\")
        !            60:                  (error "Unterminated string"))
        !            61:                 ((not last-point)
        !            62:                  (error "Extraneous %s" (char-to-string current)))
        !            63:                 (t
        !            64:                  (error "Mismatched %s with %s"
        !            65:                           (save-excursion
        !            66:                             (setq whoops (1- (point)))
        !            67:                             (goto-char (1- last-point))
        !            68:                             (buffer-substring (point)
        !            69:                                               (min (progn (end-of-line) (point))
        !            70:                                                    whoops)))
        !            71:                           (char-to-string current)))))
        !            72:          (t
        !            73:           (goto-char last-point)
        !            74:           (error "Unmatched %s" (char-to-string last-bracket))))))
        !            75:       
        !            76: (defun fast-syntax-check-mim ()
        !            77:   "Checks Mim syntax quickly.
        !            78: Answers correct or incorrect, cannot point out the error context."
        !            79:   (interactive)
        !            80:   (save-excursion
        !            81:     (goto-char (point-min))
        !            82:     (let (state)
        !            83:       (while (and (not (eobp))
        !            84:                  (equal (car (setq state (parse-partial-sexp (point) (point-max) 0)))
        !            85:                         0)))
        !            86:       (if (equal (car state) 0)
        !            87:          (message "Syntax correct")
        !            88:        (error "Syntax incorrect")))))
        !            89: 
        !            90: 
        !            91:        

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