nu.validator.encoding.ReplacementDecoder Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of htmlparser Show documentation

The Validator.nu HTML Parser is an implementation of the HTML5 parsing algorithm in Java for applications. The parser is designed to work as a drop-in replacement for the XML parser in applications that already support XHTML 1.x content with an XML parser and use SAX, DOM or XOM to interface with the parser.

There is a newer version: 1.4.16

Show newest version

/*
 * Copyright (c) 2015 Mozilla Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a 
 * copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the 
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 */

package nu.validator.encoding;

import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CoderResult;

class ReplacementDecoder extends Decoder {

    private boolean haveEmitted = false;
    
    ReplacementDecoder(Charset cs) {
        super(cs, 1.0f, 1.0f);
    }

    @Override protected CoderResult decodeLoop(ByteBuffer in, CharBuffer out) {
        for (;;) {
            if (!in.hasRemaining()) {
                return CoderResult.UNDERFLOW;
            }
            if (haveEmitted) {
                in.position(in.limit());
                return CoderResult.UNDERFLOW;                
            }
            if (!out.hasRemaining()) {
                return CoderResult.OVERFLOW;
            }
            in.position(in.limit());
            haveEmitted = true;
            if (this.report) {
                return CoderResult.malformedForLength(1);
            }
            out.put('\uFFFD');           
        }
    }

    /**
     * @see java.nio.charset.CharsetDecoder#implFlush(java.nio.CharBuffer)
     */
    @Override protected CoderResult implFlush(CharBuffer out) {
        // TODO Auto-generated method stub
        return super.implFlush(out);
    }

    /**
     * @see java.nio.charset.CharsetDecoder#implReset()
     */
    @Override protected void implReset() {
        // TODO Auto-generated method stub
        super.implReset();
    }

}