PhpWiki - Lexer Links
Keywords: Lexer Links, PhpWiki

Using a Lexer to Extract Links

If you are after raw link text only, then you can use a Lexer to access the links:

    import java.io.IOException;
    import java.net.URL;
    import java.net.URLConnection;
    import org.htmlparser.Node;
    import org.htmlparser.lexer.Lexer;
    import org.htmlparser.lexer.nodes.TagNode;
    import org.htmlparser.util.ParserException;

    public class LinkDemo
    {
        public static void main (String[] args) throws ParserException, IOException
        {
            Node node;

            URL url = new URL ("http://urlIWantToParse.com");
            URLConnection connection = url.openConnection ();
            Lexer lexer = new Lexer (connection);
            while (null != (node = lexer.nextNode ()))
                if (node instanceof TagNode)
                {
                    TagNode tag = (TagNode)node;
                    if (tag.getTagName ().equals ("A") && !tag.isEndTag ())
                    {
                        String href = tag.getAttribute ("href");
                        if (null != href)
                            System.out.println (href);
                    }
                }
         }
    }

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