/* * Copyright (c) 2008 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.htmlparser.extra; import java.io.IOException; import java.nio.charset.UnsupportedCharsetException; import nu.validator.htmlparser.io.Encoding; import org.mozilla.intl.chardet.nsDetector; import org.mozilla.intl.chardet.nsICharsetDetectionObserver; import org.mozilla.intl.chardet.nsPSMDetector; import com.ibm.icu.text.CharsetDetector; public class ChardetSniffer implements nsICharsetDetectionObserver { private final byte[] source; private final int length; private Encoding returnValue = null; /** * @param source */ public ChardetSniffer(final byte[] source, final int length) { this.source = source; this.length = length; } public Encoding sniff() throws IOException { nsDetector detector = new nsDetector(nsPSMDetector.ALL); detector.Init(this); detector.DoIt(source, length, false); detector.DataEnd(); if (returnValue != null && returnValue != Encoding.WINDOWS1252 && returnValue.isAsciiSuperset()) { return returnValue; } else { return null; } } public static void main(String[] args) { String[] detectable = CharsetDetector.getAllDetectableCharsets(); for (int i = 0; i < detectable.length; i++) { String charset = detectable[i]; System.out.println(charset); } } public void Notify(String charsetName) { try { Encoding enc = Encoding.forName(charsetName); Encoding actual = enc.getActualHtmlEncoding(); if (actual != null) { enc = actual; } returnValue = enc; } catch (UnsupportedCharsetException e) { returnValue = null; } } }