001    /*
002     * Copyright (c) 2007 Henri Sivonen
003     *
004     * Permission is hereby granted, free of charge, to any person obtaining a 
005     * copy of this software and associated documentation files (the "Software"), 
006     * to deal in the Software without restriction, including without limitation 
007     * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
008     * and/or sell copies of the Software, and to permit persons to whom the 
009     * Software is furnished to do so, subject to the following conditions:
010     *
011     * The above copyright notice and this permission notice shall be included in 
012     * all copies or substantial portions of the Software.
013     *
014     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
015     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
016     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
017     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
018     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
019     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
020     * DEALINGS IN THE SOFTWARE.
021     */
022    
023    package nu.validator.htmlparser.common;
024    
025    /**
026     * Used for indicating desired behavior with legacy doctypes.
027     * 
028     * @version $Id: DoctypeExpectation.java 150 2007-08-16 19:21:25Z hsivonen $
029     * @author hsivonen
030     */
031    public enum DoctypeExpectation {
032        /**
033         * Be a pure HTML5 parser.
034         */
035        HTML,
036        
037        /**
038         * Require the HTML 4.01 Transitional public id. Turn on HTML4-specific
039         * additional errors regardless of doctype.
040         */
041        HTML401_TRANSITIONAL,
042        
043        /**
044         * Require the HTML 4.01 Transitional public id and a system id. Turn on
045         * HTML4-specific additional errors regardless of doctype.
046         */
047        HTML401_STRICT,
048        
049        /**
050         * Treat the doctype required by HTML 5, doctypes with the HTML 4.01 Strict 
051         * public id and doctypes with the HTML 4.01 Transitional public id and a 
052         * system id as non-errors. Turn on HTML4-specific additional errors if the 
053         * public id is the HTML 4.01 Strict or Transitional public id.
054         */
055        AUTO,
056        
057        /**
058         * Never enable HTML4-specific error checks. Never report any doctype 
059         * condition as an error. (Doctype tokens in wrong places will be 
060         * reported as errors, though.) The application may decide what to log 
061         * in response to calls to <code>DocumentModeHanler</code>. This mode 
062         * in meant for doing surveys on existing content.
063         */
064        NO_DOCTYPE_ERRORS
065    }