org.eclipse.rdf4j.rio.helpers.CodePointIterator Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2015 Eclipse RDF4J contributors, Aduna, and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Distribution License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*******************************************************************************/
package org.eclipse.rdf4j.rio.helpers;
import java.util.Iterator;
/**
* Helper class for quickly iterating over a String and receiving each character code point (taking care to handle
* surrogate pairs correctly).
*
* @author Jeen Broekstra
* @see CodePointSequence
*/
public class CodePointIterator implements Iterator {
private final String source;
private int index = 0;
public CodePointIterator(String source) {
this.source = source;
}
@Override
public boolean hasNext() {
return index < source.length();
}
@Override
public Integer next() {
int codePoint = source.codePointAt(index);
index += Character.charCount(codePoint);
return codePoint;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}