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	/*
	* Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/
	/*
	*******************************************************************************
	* Copyright (C) 2009, International Business Machines Corporation and *
	* others. All Rights Reserved. *
	*******************************************************************************
	*/
	package sun.util.locale;

	public class StringTokenIterator {
	private String text;
	private String dlms; // null if a single char delimiter
	private char delimiterChar; // delimiter if a single char delimiter

	private String token;
	private int start;
	private int end;
	private boolean done;

	public StringTokenIterator(String text, String dlms) {
	this.text = text;
	if (dlms.length() == 1) {
	delimiterChar = dlms.charAt(0);
	} else {
	this.dlms = dlms;
	}
	setStart(0);
	}

	public String first() {
	setStart(0);
	return token;
	}

	public String current() {
	return token;
	}

	public int currentStart() {
	return start;
	}

	public int currentEnd() {
	return end;
	}

	public boolean isDone() {
	return done;
	}

	public String next() {
	if (hasNext()) {
	start = end + 1;
	end = nextDelimiter(start);
	token = text.substring(start, end);
	} else {
	start = end;
	token = null;
	done = true;
	}
	return token;
	}

	public boolean hasNext() {
	return (end < text.length());
	}

	public StringTokenIterator setStart(int offset) {
	if (offset > text.length()) {
	throw new IndexOutOfBoundsException();
	}
	start = offset;
	end = nextDelimiter(start);
	token = text.substring(start, end);
	done = false;
	return this;
	}

	public StringTokenIterator setText(String text) {
	this.text = text;
	setStart(0);
	return this;
	}

	private int nextDelimiter(int start) {
	int textlen = this.text.length();
	if (dlms == null) {
	for (int idx = start; idx < textlen; idx++) {
	if (text.charAt(idx) == delimiterChar) {
	return idx;
	}
	}
	} else {
	int dlmslen = dlms.length();
	for (int idx = start; idx < textlen; idx++) {
	char c = text.charAt(idx);
	for (int i = 0; i < dlmslen; i++) {
	if (c == dlms.charAt(i)) {
	return idx;
	}
	}
	}
	}
	return textlen;
	}
	}

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