SAX2: ErrorHandler mods

[David Brownell]

David Megginson wrote:
> 
> Following up on a long-ago suggestion from (I think) David Brownell,

[ not that I recall, FWIW ]

> I'm consider adding an extra method, validationError(), to the SAX2
> ErrorHandler.  That way, we'd have the following methods:
> 
>   warning - any kind of non-fatal warning
>   error - an optionally-reportable error of some kind, or an error
>           from outside the XML 1.0 domain (such as a Namespace error
>           that doesn't affect well-formedness)
>   validationError - an error in schema validation
>   fatalError - a well-formedness error
> 
> Does this work?

Hmm, if it's schema-specific, then shouldn't it be "schemaError" ?

Were I to ask for more specific indications of DTD (or schema) related
errors, I'd use subclasses of SAXParseException, passed to error().

Note that this addresses the same issue that the integer code in
exceptions addresses, but it does it in a different way.  I'd really
go for only one solution to such problems.

- Dave

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