ParserCallback - Html Parser in Java

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k4 - 01 Apr 2007 23:05 GMT

Hi!

I have problem, my class parse html document work pretty good, but if in
html document find "<html xmlns="http://www.w3.org/1999/xhtml"
xml:lang="en" lang="en">" then return error. Why ?

import javax.swing.text.html.*;
import javax.swing.text.*;

import java.net.*;

public class HTMLParse extends HTMLEditorKit.ParserCallback{
    int begin=0;
    int end = 0;

    //public void handleError(String errorMsg,int pos){
// System.out.println("Wystapil blad: "+errorMsg);
//System.exit(2); //gdybysmy chcieli wyjsc na problem z tagiem,
ale nie chcemy
// }

    public void handleStartTag(HTML.Tag tag, MutableAttributeSet attrSet,
int pos) {
            if (tag == HTML.Tag.P) {
                begin++;
            }
        }

    public void handleEndTag(HTML.Tag t,int pos){
        if (t == HTML.Tag.STRONG) {
            end++;
        }
    }

        public void handleText(char[] data, int cos){

            if(begin == 3 || begin == 4 || begin == 5 )
            System.out.println(data);

        }

}

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Tom Hawtin - 02 Apr 2007 00:30 GMT

> I have problem, my class parse html document work pretty good, but if in
> html document find "<html xmlns="http://www.w3.org/1999/xhtml"
> xml:lang="en" lang="en">" then return error. Why ?
>
> import javax.swing.text.html.*;

The Swing HTML parse is ancient (and basic). Modern XHTML (XML format) I
believe will give it problems.

You could use something like JTidy (google it) to reformat the document
as old school HTML. Alternatively a short SAX handler could remove the
XMLisms (like using <x/> instead of <x></x>).

Tom Hawtin

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ParserCallback - Html Parser in Java

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