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List:       kde-devel
Subject:    Re: [kde-devel] DOM classes advanced usage help request
From:       Juraj Novak <juraj_novak () pobox ! sk>
Date:       2002-06-07 21:49:58
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> On Friday 07 June 2002 01:47, Juraj Novak wrote: 
> > Greetings everyone! 
> > 
> > I am using KHTMLPart as a DOM tree build 
> > mechanism, it works very ok. But I have 2 
> > questions: 
> > 
> > 1. How to make parsing of a XML document 
> > synchronous, not to have needs for connecting to 
> > completed() signal? 
>  
> By using QT's DOM (QDom classes), if you do not 
need CSS. 
>  
> (see QDomDocument::setContent) 
>  
> > 
> > 2. How to know offset of an DOM element(node) in 
> > a parsed source file? Say when I ask DOM classes 
> > for all <img> tags, I would like to know their 
> > possitions from the begining of a file. Is it 
> > possible at least for some nodes, e.g. 
> > attributes? Or is it completely imposible and 
> > one must use regular expressions for this? But 
> > regular expressions don't build DOM trees, 
> > that's the point :| 
>  
> You cannot. DOM is not defined for doing this. 
>  
> However, what do you want to do with your <IMG> 
elements. Change them? If yes,  
> try to use QDomDocument::elementsByTagName. (I 
suppose that KHTML has this  
> function too, as it is a DOM function.) 
>  
> If your problem is to save back the file to disk, 
then you should really use  
> QDom (for example QDomDocument::toString or 
QDomDocument::save . These are  
> *not* DOM functions.) 
>  
> > 
> > TAI 
>  
> Have a nice day/evening/night! 
>  
Thank you very much for your answer. Yes I want to 
modify tags from a source file, e.g. I want to 
modify tag img and tag frame to something else. I 
will have a close look on functions you've notice 
and be glad if they would be helpfull. 
 
I was thinking maybe of some hack to handle this 
with KDE library, say hanging myself on a data() 
signal from some KIO::job while writing it on disk, 
searching that buffer for occurence of some 
tag...hmmm but how to synchronize. 
 
Have a nice day too, cya 
____________________________________
http://www.pobox.sk/ - spolahliva a bezpecna prevadzka




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