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Open source implementation of the AS2 standard for signed encrypted and compressed document transfer

There is a newer version: 2.10.1

package org.openas2.util;

import org.openas2.WrappedException;

/** emulates StringTokenizer 
 * 
 * @author joseph mcverry
 *
 */
public class CommandTokenizer {

	String workString;
	int pos = 0;
	int len = -1;
	/**
	 * constructor
	 * @param inString the string to parse
	 */
	public CommandTokenizer(String inString) {
		workString = inString;
		len = workString.length();
	}

	/**
	 * any more tokens in String
	 * @return true if there are any more tokens 
	 * @throws WrappedException - internally handled error
	 */
	public boolean hasMoreTokens() throws WrappedException {
		try {
			while (pos < len - 1 && workString.charAt(pos) == ' ')
				pos++;

			if (pos < len)
				return true;

			return false;
		} catch (Exception e) {
			throw new WrappedException(e);
		}
	}

	/**
	 * returns the next token, this handles spaces and quotes
	 * @return a string
	 * @throws WrappedException  - internally handled error
	 * 
	 */
	public String nextToken() throws WrappedException {

		try {
			while (pos < len - 1 && workString.charAt(pos) == ' ')
				pos++;

			StringBuffer sb = new StringBuffer();

			while (pos < len && workString.charAt(pos) != ' ') {

				if (workString.charAt(pos) == '"') {
					pos++;
					while (pos < len && workString.charAt(pos) != '"') {
						sb.append(workString.charAt(pos));
						pos++;
					}
					pos++;
					return sb.toString();
				}
				sb.append(workString.charAt(pos));
				pos++;
			}

			return sb.toString();
		} catch (Exception e) {
			throw new WrappedException(e);
		}

	}
}