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/*
* $Id: splitExample.java,v 1.8 2003/11/07 20:16:23 dfs Exp $
*
* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation", "Jakarta-Oro"
* must not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache"
* or "Jakarta-Oro", nor may "Apache" or "Jakarta-Oro" appear in their
* name, without prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*/
package examples.awk;
import java.util.*;
import org.apache.oro.text.regex.*;
import org.apache.oro.text.awk.*;
/**
* This is a test program demonstrating the use of the Util.split() method.
* It is the same as the version in the OROMatcher distribution except that
* it uses Awk classes instead of Perl classes.
*
* @version @version@
*/
public final class splitExample {
/**
* A good way for you to understand the split() method is to play around
* with it by using this test program. The program takes 2 or 3 arguments
* as follows:
* java splitExample regex input [split limit]
* regex - A regular expression used to split the input.
* input - A string to be used as input for split().
* split limit - An optional argument limiting the size of the list returned
* by split(). If no limit is given, the limit used is
* Util.SPLIT_ALL. Setting the limit to 1 generally doesn't
* make any sense.
*
* Try the following two command lines to see how split limit works:
* java splitExample '[:|]' '1:2|3:4'
* java splitExample '[:|]' '1:2|3:4' 3
*
*/
public static final void main(String args[]) {
int limit, i;
String regularExpression, input;
List results = new ArrayList();
Pattern pattern = null;
PatternMatcher matcher;
PatternCompiler compiler;
Iterator elements;
// Make sure there are sufficient arguments
if(args.length < 2) {
System.err.println("Usage: splitExample regex input [split limit]");
System.exit(1);
}
regularExpression = args[0];
input = args[1];
if(args.length > 2)
limit = Integer.parseInt(args[2]);
else
limit = Util.SPLIT_ALL;
// Create AwkCompiler and AwkMatcher instances.
compiler = new AwkCompiler();
matcher = new AwkMatcher();
// Attempt to compile the pattern. If the pattern is not valid,
// report the error and exit.
try {
pattern = compiler.compile(regularExpression);
System.out.println("split regex: " + regularExpression);
} catch(MalformedPatternException e){
System.err.println("Bad pattern.");
System.err.println(e.getMessage());
System.exit(1);
}
// Split the input and print the resulting list.
System.out.println("split results: ");
Util.split(results, matcher, pattern, input, limit);
elements = results.iterator();
i = 0;
while(elements.hasNext())
System.out.println("item " + i++ + ": " + (String)elements.next());
}
}
