Re: [Htmlparser-user] Newbie Problem with HasChildFilter

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I think the TagNameFilter is case sensitive so it should be:
NodeFilter filter = new AndFilter(new TagNameFilter("BODY"),
               new HasChildFilter(new TagNameFilter("A"),true));

But, the filter you've constructed would find the BODY tag:
keep: tag named BODY and has a child named A

If you want the A tags insid the BODY tag it would be:
NodeFilter filter = new AndFilter(new TagNameFilter("A"),
               new HasParentFilter(new TagNameFilter("BODY"),true));


On Mon, Jul 6, 2009 at 10:33 AM, Roger Varley
<rog...@go...>wrote:

> Hi
>
> I'm probably doing something stupid here, but I can't get the
> HasChildFilter to work properly. I am trying to get all the <a> tags
> that occur inside the <body> tag so I can re-write them. I don't want
> the javascript generated tags that occur inside the <head> tag. My
> test case is below.
>
> String testHtml = "<html><head><script><a href=JAVASCRIPT:openProc('\"
> + parent.contents.procUID[i] + \"','main')>"
>                             +"</script><body><table><tr><td>Cell
> Content</td></tr><tr><td>"
>                             +"<a target=\"main\"
> href=\"findXml.jsp?XMLFile=G455051\">Control
> Mechanism</a></td></tr></table></body></html>";
>
> Parser parser = new Parser(testHtml);
> NodeList originalPage = parser.parse(null);
> NodeFilter filter = new AndFilter(new TagNameFilter("body"),
>                new HasChildFilter(new TagNameFilter("a"),true));
> NodeList extract = originalPage.extractAllNodesThatMatch(filter, true);
>
> This fails to find any of the <a> tags - extract.size() is zero. Can
> someone point out
> what I'm doing wrong please.
>
> Regards
>
>
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