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<meta name="description" content="This is very similar to [link extraction | LinkExtraction]. You have to extract links from a page and verify that they are email addresses. Link tags have a method - <i>isMailLink()</i> to check if the HREF starts with "mailto:". Using an inner class in the ~NodeFilter example:" />
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<title>PhpWiki - Email Extraction</title>
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<div class="wikitext"><p><b>Email Extraction</b></p>
<p>This is very similar to <a href="../index.php/LinkExtraction" class="named-wiki" title="LinkExtraction">link extraction</a>. You have to extract links from a page and verify that they are email addresses. Link tags have a method - <i>isMailLink()</i> to check if the HREF starts with "mailto:". Using an inner class in the NodeFilter example:</p>
<pre>
import org.htmlparser.Node;
import org.htmlparser.NodeFilter;
import org.htmlparser.Parser;
import org.htmlparser.tags.LinkTag;
import org.htmlparser.util.NodeIterator;
import org.htmlparser.util.NodeList;
import org.htmlparser.util.ParserException;
public class EmailLinkDemo
{
public static void main (String[] args) throws ParserException
{
Parser parser = new Parser ("http://urlIWantToParse.com");
NodeFilter filter = new NodeFilter ()
{
/**
* Accept nodes that are mail links.
* @param node The node to check.
*/
public boolean accept (Node node)
{
return (LinkTag.class.isAssignableFrom (node.getClass ())
&& ((LinkTag)node).isMailLink ());
}
};
NodeList links = new NodeList ();
for (NodeIterator e = parser.elements (); e.hasMoreNodes (); )
e.nextNode ().collectInto (links, filter);
for (int i = 0; i < links.size (); i++)
{
LinkTag linkTag = (LinkTag)links.elementAt (i);
System.out.print ("\"" + linkTag.getLinkText () + "\" => ");
System.out.println (linkTag.getLink ());
}
}
}</pre>
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