/**
* $RCSfile: FullStringTokenizer.java,v $
* $Revision: 1.2 $
* $Date: 2001/07/31 05:38:29 $
*
* Copyright (C) 1999-2001 CoolServlets, Inc. All rights reserved.
*
* This software is the proprietary information of CoolServlets, Inc.
* Use is subject to license terms.
*/
package com.jivesoftware.util;
public class FullStringTokenizer {
private String string;
private String delimiter;
private int index = 0;
private int length = 0;
private int delimiterLength;
public FullStringTokenizer(String string, String delimiter) {
this.string = string;
this.delimiter = delimiter;
delimiterLength = delimiter.length();
length = string.length();
}
/**
* Determine if there are more tokens available
*/
public boolean hasMoreTokens() {
return (index < length);
}
/**
* Get the next token
*/
public String nextToken() {
String s = this.string;
int nextToken = s.indexOf(delimiter, index);
//Done finding tokens
if (nextToken < 0) {
// fixed to return whatever is left in the string (for the case
// of "[tok]data[tok]data" <- no ending token)
String tok = s.substring(index,length);
index = length;
return tok;
}
else if (nextToken == index) {
//We found an empty token
index += delimiterLength;
return "";
}
else {
String result = s.substring(index, nextToken);
index = nextToken + delimiterLength;
return result;
}
}
/**
* Returns true of the string being tokenized ends on a delimiter.
*
* For instance, if the string is "a/b/c/d/" and the delimiter is "/"
* then this method will return true. A string of "a/b/c/d" returns false.
*/
public boolean endsOnDelimiter() {
return ((string.lastIndexOf(delimiter)+delimiter.length())==string.length());
}
/**
* Test program.
*/
public static void main(String [] args) {
String testString = "||this is|| a test||||of the system||||";
FullStringTokenizer tokens = new FullStringTokenizer(testString, "||");
while(tokens.hasMoreTokens()) {
System.out.println("> " + tokens.nextToken());
}
}
}