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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is HTML Parser C++ Translator code.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2008
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Henri Sivonen <hsivonen@iki.fi>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package nu.validator.htmlparser.cpptranslate;
import java.io.IOException;
import java.io.InputStream;
public class NoCppInputStream extends InputStream {
private final static char[] START = "[NOCPP[".toCharArray();
private final static char[] END = "]NOCPP]".toCharArray();
private int state;
private final InputStream delegate;
/**
* @param delegate
*/
public NoCppInputStream(InputStream delegate) {
this.delegate = delegate;
this.state = 0;
}
@Override public int read() throws IOException {
int c;
if (state == START.length) {
int endState = 0;
while (endState != END.length) {
c = delegate.read();
if (END[endState] == c) {
endState++;
} else {
endState = 0;
}
}
state = 0;
}
c = delegate.read();
if (START[state] == c) {
state++;
} else {
state = 0;
}
return c;
}
}
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