RE: [Htmlparser-developer] HTMLParser 1.2 - 1.3

[<dha...@or...>]

We anyway have a NodeVisitor abstract class with certain methods for specific 
visitors. The default implementation of these methods could call the supertype 
method.

Regards,

Dhaval Udani
Senior Analyst
M-Line, QPEG
OrbiTech Solutions Ltd.
+91-22-28290019 Extn. 1457



> -----Original Message-----
> From: DerrickOswald [mailto:Der...@ro...]
> Sent: Wednesday, May 14, 2003 5:08 PM
> To: htmlparser-developer
> Cc: DerrickOswald
> Subject: Re: [Htmlparser-developer] HTMLParser 1.2 - 1.3
> 
> 
> 
> The visitor pattern that currently is in place has 'call 
> backs' for each 
> of the types of nodes.
> I guess you're suggesting that a 'supertype' callback be added.
> I don't think this would be a problem.
> The class implementing the visitor interface needs to add one more 
> method, although it could be vacuous, and the logic behind 
> the mechanics 
> has to call two methods, the supertype method and the specific type.
> 
> 
> dha...@or... wrote:
> 
> >Why does the NodeVisitor not have a method called 
> visitNode() analogous to 
> >visitTag()?
> >
> >Regards,
> >
> >Dhaval Udani
> >Senior Analyst
> >M-Line, QPEG
> >OrbiTech Solutions Ltd.
> >+91-22-28290019 Extn. 1457
> >
> >
> >
> >  
> >
> >>-----Original Message-----
> >>From: DerrickOswald [mailto:Der...@ro...]
> >>Sent: Wednesday, May 14, 2003 3:09 AM
> >>To: htmlparser-developer
> >>Cc: DerrickOswald
> >>Subject: Re: [Htmlparser-developer] HTMLParser 1.2 - 1.3
> >>
> >>
> >>
> >>The visitor paradigm is one way.
> >>See StringBean which implements NodeVisitor.
> >>You could pass all nodes to the same method:
> >>
> >>    public void visitTag (Tag tag) { do_something (tag); }
> >>    public void visitEndTag (Tag tag) { do_something (tag); }
> >>etc.
> >>    void do_something (Node node) { <do something> }
> >>
> >>dha...@or... wrote:
> >>
> >>    
> >>
> >>>Hi,
> >>>
> >>>I had started using HTMLParser version 1.2 sometime in 
> >>>      
> >>>
> >>August of last year. At 
> >>    
> >>
> >>>that time the parser had more of a flat structure unlike 
> >>>      
> >>>
> >>today's tree structure 
> >>    
> >>
> >>>with parents, children etc.
> >>>
> >>>At that time, I could find all the nodes irrespective of 
> >>>      
> >>>
> >>their depth in the 
> >>    
> >>
> >>>following manner:
> >>>
> >>>NodeIterator e = lHTMLParser.elements();
> >>>while (e.hasMoreNodes())
> >>>{
> >>>	Node lNode = (Node)e.nextNode();
> >>>	<do something>
> >>>}
> >>>
> >>>
> >>>With the advent of 1.3 the tree structure came in, in which 
> >>>      
> >>>
> >>some nodes were 
> >>    
> >>
> >>>inside other nodes. I have registered the scanners whose 
> >>>      
> >>>
> >>tags I want. However 
> >>    
> >>
> >>>if these tags are nested within other tags that I have 
> >>>      
> >>>
> >>registered, then the 
> >>    
> >>
> >>>above scenario does not work. I need to go deeper. That is 
> >>>      
> >>>
> >>not always feasible. 
> >>    
> >>
> >>>Is there any mechanism in 1.3 like the one above using which 
> >>>      
> >>>
> >>I can get all the 
> >>    
> >>
> >>>nodes irrespective of their nested level.
> >>>
> >>>
> >>>Regards,
> >>>
> >>>Dhaval Udani
> >>>Senior Analyst
> >>>M-Line, QPEG
> >>>OrbiTech Solutions Ltd.
> >>>+91-22-28290019 Extn. 1457
> >>>
> >>>
> >>>
> >>>-------------------------------------------------------
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> Santa Clara
> >>>The only event dedicated to issues related to Linux 
> >>>      
> >>>
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> >>    
> >>
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> >>>
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> >>>Htm...@li...
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> >>>
> >>> 
> >>>
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> >>>
> >>
> >>
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> >>Enterprise Linux Forum Conference & Expo, June 4-6, 2003, 
> Santa Clara
> >>The only event dedicated to issues related to Linux 
> >>enterprise solutions
> >>www.enterpriselinuxforum.com
> >>
> >>_______________________________________________
> >>Htmlparser-developer mailing list
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> >>
> >>    
> >>
> >
> >
> >
> >-------------------------------------------------------
> >Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara
> >The only event dedicated to issues related to Linux 
> enterprise solutions
> >www.enterpriselinuxforum.com
> >
> >_______________________________________________
> >Htmlparser-developer mailing list
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> >https://lists.sourceforge.net/lists/listinfo/htmlparser-developer
> >
> >  
> >
> 
> 
> 
> 
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