xml-dev - RE: simple XML for C++ application data-file I/O

[Shaw Tim <tshw@capitalmarketscompany.com>]

FWIW, I ended up having different (sub)DocHandlers for the different nesting
levels and implementing a Handler stack to push/pop them according to the
tags they handled. At least this way you can handle sub-trees fairly simply,
and reduce the bulk of code required for situations where you have many tags
identifying different sub-trees (and hence semantics).
A (minor) problem I had with this was that I looked up the Handlers based on
the tag-name - so there's a problem when the same tag is used in different
'contexts'.
It would be useful to associate a Handler with a given tag at the parser
initialisation level, using some XPath notation to identify the appropriate
tag(s).

tim

> -----Original Message-----
> From: Paul Miller [mailto:stele@fxtech.com]
> Sent: 06 December 1999 15:11
> To: xml-dev
> Subject: Re: simple XML for C++ application data-file I/O
> 
> 
> > We tried to keep SAX 1.0 as simple as possible -- how would you
> > simplify the following further?
> > 
> >     public void startElement (String name, AttributeList atts)
> >     {
> >       // do something!!
> >     }
> 
> Here is where I have the problem. This leaves an awful lot up to the
> application, still, including handling the proper nesting. I 
> would like
> to make the actual parsing of elements more "automatic", so when a
> certain element is hit, it calls a function with my object 
> pointer where
> I can pick up the parsing from there, then drop back out to the
> enclosing XML scope and keep going.
> 
> Perhaps what I want to do should be built on SAX instead of expat,
> though.
> 
> --
> Paul Miller - stele@fxtech.com
> 
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