import java.awt.*;import java.util.*;
/** * 	An applet to parse text containing e-mail addresses 
* 	into a list of addresses 
* 	 
* 	  
* 	@author	http://www.whatrain.com/ 
* 	@version	beta 0.01 
* 	@author		Timothy M. Radonich 
* 	@author		WhatRain Internet Services 
*	@see		ListNode.class 
*	@see		LinkedList.class 
*	@see		EAddressParser.class 
*/
public class wrEmailParser extends java.applet.Applet
{	
TextArea emailTextArea;	
Button buttonParse;	
Label whatRainLabel;	
Button buttonSelect;	
Label parserLabel;	
/** * 	set up GUI with  lables, textarea, 
* 	Select All button and Find Addresses button 
* 	 
* 	  
* 	@param 		no parameters 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/	
public void init()	{	
	setLayout( null );	// no layout manager
	setForeground( new Color( 0, 0, 0 ));	// black	
	setBackground( new Color( 255, 255, 255 ));	// white	
	addNotify();

	resize( (insets().left + insets().right + 450), (insets().top + insets().bottom + 300) );
	
	emailTextArea = new TextArea( "Use right mouse click or keyboard to \n paste text with e-mail addresses here" );
 	
	emailTextArea.setEditable( true );	// want user to be able paste and copy		emailTextArea.setBackground( new Color( 255, 255, 255 ));	// white		add( emailTextArea );
	
	emailTextArea.reshape( (insets().left + 35), (insets().top + 35), 380, 217 );
	
	buttonParse = new Button( "Find Addresses" );
	
	add( buttonParse );	
	buttonParse.reshape( (insets().left + 296), (insets().top + 263), 137, 25 );	
	buttonSelect = new Button( "Select All" );	
	add( buttonSelect );	
	buttonSelect.reshape( (insets().left + 17), (insets().top + 264), 137, 25 );	
	whatRainLabel = new Label( "WhatRain", Label.LEFT );	
	whatRainLabel.setFont( new Font( "Courier", Font.BOLD, 20 ));	
	add( whatRainLabel );	
	whatRainLabel.reshape( (insets().left + 90), (insets().top + 0), 107, 24 );	
	parserLabel = new Label( "E-mail Address Parser", Label.LEFT );	
	parserLabel.setFont( new Font( "Dialog", Font.PLAIN, 10 ));	
	add( parserLabel );	
	parserLabel.reshape( (insets().left + 197), (insets().top + 0), 162, 24 );	
	emailTextArea.selectAll();	

	emailTextArea.requestFocus();	}
/** * 	find addresses in text 
* 	  
* 	 
* 	  
* 	@param 		Event event 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*	@see		ListNode.class 
*	@see		LinkedList.class 
*	@see		EAddressParser.class 
*/	
protected void ButtonParseClicked( Event event )
{		
	String data = emailTextArea.getText();	
	// get text from textArea	
	LinkedList tempList = new LinkedList();	
	// prepare linked list for address list	
	EAddressParser parser = new EAddressParser();	// prepare eEAddress parser   

        tempList = parser.parseLine(data);		// parse data to list	
	if(tempList != null)	
	{	
		tempList = tempList.cleanList();		// clean list		
		tempList.removeDuplicates();		
		emailTextArea.setText(tempList.toStringLines() + 
				" \n Address Count: " + 
				tempList.getNumberOfNodes());

		emailTextArea.requestFocus();
	}	
	else	
	{	
		emailTextArea.setText("No e-mail addresses found \n Use right mouse click or keyboard to \n paste text with e-mail addresses here" );
	}				
}
/** 
* 	 
* 	  
* 	 
* 	  
* 	@param 		Event event 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/		

protected void ButtonSelectClicked( Event event )	
{	
	emailTextArea.selectAll();
	emailTextArea.requestFocus();	
}
/** 
* 	 
* 	  
* 	 
* 	  
* 	@param 		Event event 
* 	@return		boolean true if event handled 
* 	@exception	exceptions no exceptions thrown 
*/	
	public boolean handleEvent( Event event )
	{			

	
		if ((event.target == buttonParse) && (event.id == Event.ACTION_EVENT))
		{	
			ButtonParseClicked( event );	
			return true;	
		}	
		if ((event.target == buttonSelect) && (event.id == Event.ACTION_EVENT))
		{	
			ButtonSelectClicked( event );	
			return true;	
		}	
		return super.handleEvent( event );	
	}
	
	public void start()	{		}
	public void stop()
	{			}

}

import java.io.*;
/** 
* 	 
* 	  
* 	 
* 	@see 		ListNode.class 
* 	@author		http://www.whatrain.com/ 
* 	@version	beta 0.01 
* 	@author		Timothy M. Radonich 
* 	@author		WhatRain Internet Services 
* 	@exception	IOException thrown from printToFile () 
*/

class LinkedList
{   
	private ListNode first, last; // link to the first and last node   
	private int numberOfNodes;   
	LinkedList()    
	{      
		first = last = null;      
		numberOfNodes = 0;    
	}
/** 
* 	 
* 	  
* 	 
* 	 
* 	@param 		no parameters  
* 	@return		String numberOfNodes 
* 	@exception	exceptions no exceptions thrown 
*/	
	String getNumberOfNodes()	
	{
		Integer non = new Integer(numberOfNodes);
		return non.toString() ;	
	}


/** 
* 	 
* 	  
* 	 
* * 	@see		ListNode.class 	  
* 	@param 		ListNode First 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/		
	void setFirst(ListNode First)	
	{
		first = First ;	
	}
/** 
* 	 
* 	  
* 	 
* 
* 	@see		ListNode.class 	  
* 	@param 		ListNode Last 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/	
	void setLast(ListNode Last)	
	{
		last = Last ;	
	}
/** 
* 	 
* 	  
* 	 
* 	@see		ListNode.class 
* 	@param 		no parameters  
* 	@return		ListNode first 
* 	@exception	exceptions no exceptions thrown 
*/	
	ListNode getFirst()	
	{		return first ;	
	}
/** 
* 	 
* 	  
* 	 
* 	@see		ListNode.class 
* 	@param 		no parameters  
* 	@return		ListNode last 
* 	@exception	exceptions no exceptions thrown 
*/	
	ListNode getLast()	
	{
		return last ;	
	}
/** 
* 	 
* 	  
* 	 
* 
* 	@see		ListNode.class 	  
* 	@param 		ListNode newNode 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/   
	void append(ListNode newNode)     
	{       
		newNode.setNextNull();
		if (first == null)  // This is the first entry         
		first = newNode;       
		if (last != null)          
		last.setNextNode(newNode);       
		setLast(newNode);       
		numberOfNodes++;     
	}  
/** 
* 	 
* 	  
* 	 
* 
* 	@see		ListNode.class 	  
* 	@param 		LinkedList list 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/   
	void append(LinkedList list)     
	{       
		if (first == null)  // This is the first entry         
		first = list.first;       
		if (last != null)          
		last.setNextNode ( list.first);       
		setLast ( list.last);       
		numberOfNodes = numberOfNodes + list.numberOfNodes;     
	}  
/** 
* 	 
* 	  
* 	 
* 
* 	@see		ListNode.class 	  
* 	@param 		String newNodeValue 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/   
	void append(String newNodeValue)     
	{	
		ListNode newNode = new ListNode(newNodeValue); 	
		append(newNode);     
	}  
/** 
* 	 
* 	  
* 	 
* 	  
* 	@see		ListNode.class  
* 	@param 		no parameters 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/	
	void printList()  	
	{
     		int i = 0;
     		ListNode tempNode = first;
     		while (tempNode != null)      
 		{
			tempNode.printNode();
          		i++;
          		tempNode = tempNode.getNextNode();  // Get the next node      
 		}
       	}
/** 
* 	 
* 	  
* 	 
* 	  
* 	@see		ListNode.class  
* 	@param 		no parameters 
* 	@return		String 
* 	@exception	exceptions no exceptions thrown 
*/	
	String toStringLines()
  	{
     		int i = 0;
		String tempString = new String(" \n");
     		ListNode tempNode = first;
     		while (tempNode != null)
       		{
			tempString = tempString + tempNode.getNodeValue() + "\n";
			i++;
          		tempNode = tempNode.getNextNode();  // Get the next node  
     		}
   		return tempString ;
      	}
/** 
* 	 
* 	  
* 	 
* 	  
* 	@see		ListNode.class  
* 	@param 		no parameters 
* 	@return		no return 
* 	@exception	IOException thrown 
*/	
	void printToFile()  	
	{
		try
		{
			PrintStream output = new PrintStream( new BufferedOutputStream( new FileOutputStream("test.tst")));
     			int i = 0;
     			ListNode tempNode = first;
	     		while (tempNode != null)
       			{
				output.println(tempNode.getNodeValue());
          			i++;
          			tempNode = tempNode.getNextNode();  // Get the next node 
      			}
       			output.close();
		}
        	catch (IOException e)
          	{
            		System.out.println("File error: " + e);
          	}
  	}
/** 
* 	 
* 	  
* 	 
* 	 
* 	@see		ListNode.class   
* 	@param 		no parameters 
* 	@return		LinkedList list 
* 	@exception	exceptions no exceptions thrown 
*/	
	LinkedList cleanList()	
	{
     		ListNode node = first;
		LinkedList list = new LinkedList();
     		while (node != null)
       		{
			LinkedList tempList = new LinkedList();
			EAddressParser parser = new EAddressParser();
               		tempList = parser.parseLine(node.getNodeValue());
			if (tempList != null)list.append(tempList);
          		node = node.getNextNode();  // Get the next node 
      		}
       		return list ;
	}
/** 
* 	 
* 	  
* 	 
* 	 
* 	@see		ListNode.class   
* 	@param 		no parameters 
* 	@return		no return value 
* 	@exception	exceptions no exceptions thrown 
*/	
	void removeDuplicates()	
	{
     		ListNode lookForNode = first;
		LinkedList list = new LinkedList();
     		while (lookForNode != null)
       		{
			ListNode checkThisNode = lookForNode.getNextNode();
			ListNode pastNode = lookForNode;
     			while (checkThisNode != null)
       			{
        			if(lookForNode.getNodeValue().equals(checkThisNode.getNodeValue()))
				{
					pastNode.setNextNode(checkThisNode.getNextNode());// removes checkThisNode
					numberOfNodes-- ;
					checkThisNode = checkThisNode.getNextNode();  // Get the next node do not advance pastNode	
				}
				else
				{
					checkThisNode = checkThisNode.getNextNode();  // advance checkThisNode
					pastNode = pastNode.getNextNode();  //advance pastNode
				}
			}
          		lookForNode = lookForNode.getNextNode();  // advance lookForNode
       		}

       }
}


// place the following in a seperate file


import java.util.StringTokenizer;

class EAddressParser
{
    public LinkedList parseLine(String string1)
    {
        StringTokenizer stringTokenizer = new StringTokenizer(string1);
        LinkedList linkedList = new LinkedList();
        while (stringTokenizer.hasMoreTokens())
        {
            String string2 = stringTokenizer.nextToken();
            if (couldBeAddress(string2))
            {
                String string3 = new String(cleanAddress(string2));
                ListNode listNode = new ListNode(string3);
                linkedList.append(listNode);
            }
        }
        if (linkedList.getFirst() == null)
            return null;
        else
            return linkedList;
    }

    boolean couldBeAddress(String string)
    {
        if (string.indexOf(64) > 0)
            return true;
        else
            return false;
    }

    String cleanAddress(String string1)
    {
        String string2 = new String(string1);
        String string3 = new String(",<>;:[]'\"{}\\+=()!#$%^&*~`?/");
        char ach1[] = string3.toCharArray();
        char ach2[] = " ".toCharArray();
        for (int i = 0; i < ach1.length; i++)
            string2 = string2.replace(ach1[i], ach2[0]);
        if (string2.indexOf(64) != string2.lastIndexOf(64))
            string2 = string2.substring(0, string2.lastIndexOf(64));
        string2 = string2.trim();
        return string2;
    }

    EAddressParser()
    {
    }
}