/**
* BlueCove - Java library for Bluetooth
* Copyright (C) 2006-2009 Vlad Skarzhevskyy
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
* @author vlads
* @version $Id$
*/
package net.sf.bluecove.util;
import java.util.NoSuchElementException;
/**
* Simple implementation of java.util.StringTokenizer for J2ME Taken from
* com.pyx4me.core.utils
*/
public class J2MEStringTokenizer {
private int currentPosition;
private int newPosition;
private String str;
private String delimiter;
/**
* Constructs a string tokenizer for the specified string. The characters in
* the delim argument are the delimiters for separating tokens. Delimiter
* characters themselves will not be treated as tokens.
*
* @param str
* a string to be parsed
* @param delimiter
* the delimiter
*/
public J2MEStringTokenizer(String str, String delimiter) {
this.str = str;
this.delimiter = delimiter;
this.currentPosition = 0;
nextPosition();
}
/**
* @return True, if there is a token left
*/
public boolean hasMoreTokens() {
return (newPosition != -1) && (currentPosition < newPosition);
}
private void nextPosition() {
this.newPosition = this.str.indexOf(this.delimiter, this.currentPosition);
if (this.newPosition == -1) {
this.newPosition = this.str.length();
} else if (this.newPosition == this.currentPosition) {
// Zero len token
this.currentPosition += 1;
nextPosition();
}
}
/**
*
* @return Next token
* @throws NoSuchElementException
* If there is no token left
*/
public String nextToken() throws NoSuchElementException {
if (!hasMoreTokens()) {
throw new NoSuchElementException();
}
String next = this.str.substring(this.currentPosition, this.newPosition);
this.currentPosition = this.newPosition + 1;
nextPosition();
return next;
}
}