Derrick Oswald - 2014-11-09

It's been a while, but I'll try.

There are only two tags with built in semantic action, I think... <BASE>
and <META>, one sets the base URL and the other checks for an encoding
specification and switches encoding. The rest is up to you... it's just a
hook.
Here is an example of it being used (trivially)...
http://htmlparser.sourceforge.net/javadoc/index.html

NullPointerExceptions can happen for a number of reasons, without a stack
trace it would be difficult to answer that question. The scanner classes
are mostly for internal use. If you are creating a new tag (i.e. JSP tags),
you might need to know about scanners.
Normally you would use the Parser class to parse a <DIV> tag ....
http://htmlparser.sourceforge.net/javadoc/index.html

Derrick

On Tue, Oct 28, 2014 at 2:49 PM, Juergen juergen100@users.sf.net wrote:

Status: open
Group: v1.4
Created: Tue Oct 28, 2014 01:49 PM UTC by Juergen
Last Updated: Tue Oct 28, 2014 01:49 PM UTC
Owner: nobody

Hello,

I have two questions related to scanners:
A: In JavaDoc of TagScanner is the sentence "When asked to scan the tag,
this class does nothing other than perform the tag's semantic action." What
is meant by "... tag's semantic action? When I run a TagScanner.scan on a
<DIV> tag, I don't see anything "performed". It simply returns the same
structure as the provided <DIV> tag.

B: When I feed the same <DIV> tag (which includes other tags, hence
according to my understanding is a composite tag) into a
CompositeTagScanner I'm getting a NullPointerException. What is the
required input for a CompositeTagScanner scan?

Maybe you have a sample code that demonstrates the correct usage of
CompositeTagScanner?

Thanks

Juergen

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Support Requests: #79