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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.search.internal.core.text;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
/**
* Adapting a document to a CharSequence
*/
public class DocumentCharSequence implements CharSequence {
private final IDocument fDocument;
/**
* @param document The document to wrap
*/
public DocumentCharSequence(IDocument document) {
fDocument= document;
}
@Override
public int length() {
return fDocument.getLength();
}
@Override
public char charAt(int index) {
try {
return fDocument.getChar(index);
} catch (BadLocationException e) {
throw new IndexOutOfBoundsException();
}
}
@Override
public CharSequence subSequence(int start, int end) {
try {
return fDocument.get(start, end - start);
} catch (BadLocationException e) {
throw new IndexOutOfBoundsException();
}
}
}
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