Re: [xml-dev] Re: Re: [xml-dev] SAX/Java Proposed Changes

"Karl Waclawek" <[email protected]> Fri, 5 Mar 2004 12:47:25 -0500
Newsgroups gmane.text.xml.sax.devel,gmane.text.xml.devel
Message-ID <005301c402d9$ebc9b480$9e539696@citkwaclaww2k>
----- Original Message ----- 
From: "Elliotte Rusty Harold" <[email protected]>
To: "Karl Waclawek" <[email protected]>
Cc: "David Megginson" <[email protected]>; "XML Developers List" <[email protected]>; "SAX
Developers' List" <[email protected]>
Sent: Friday, March 05, 2004 12:22 PM

OK, I am replying only to the lists now.
This "Reply All" has escalated to the point where I get 5 identical
replies to my reply.


> My gut is that when the handler throws an exception it is not
> reported to fatalError. According to the ErrorHandler documentation,
> "The parser will then report all errors and warnings through this
> interface." The documentation of the three methods indicates this as
> well. For instance, fatalError "corresponds to the definition of
> "fatal error" in section 1.2 of the W3C XML 1.0 Recommendation. For
> example, a parser would use this callback to report the violation of
> a well-formedness constraint."

The question is: why can the exception argument passed to fataError()
wrap another exeption then?

> I see no text that indicates a user thrown exception should ever be
> passed to the ErrorHandler. Should endDocument be called even in the
> event of a user-thrown exception? I suspect not. The user threw it.
> Let them clean up after it.

That would negate the "cleanup" potential of endDocument.
I am not against this, as it is the normally expected behaviour
when an exception is thrown, but I would consider parser exceptions
no different from user exceptions.

So, what you are saying is:

- if fatal error, call endDocument
- if exception, do the normal thing (i.e. don't call endDocument)

I can live with that.

Karl




-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
_______________________________________________
List: sax-devel, [email protected]
See:  http://www.saxproject.org/
https://lists.sourceforge.net/lists/listinfo/sax-devel