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   Re: [xml-dev] [ANN] smallx XML Infoset and Pipeline Released (OpenSource

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Alan Gutierrez wrote:

>     In my SAX library, XStrategy, I combined namespaces and events.
>     The XStrategy framwork maintains a stack of namespaces in scope
>     by default. It seemed impossible to get anything done without it.

If you're int he unfortunate situation of needing to resolve namespace 
prefixes in attribute values and element content, as is the case in an 
XSLT processor or a schema validator, then you absolutely need to do 
this. However, probably at least 90% of use cases are much simpler and 
just need to know the namespaces of each element and attribute, and this 
doesn't require any extra work.

It's not all that hard to keep track of namespaces in scope in SAX. You 
just use a NamespaceSupport object, push the namespace on in 
startPrefixMapping and pop it off in endPrefixMapping. Sadly this isn't 
as well documented or obvious as it should be.

Elliotte Rusty Harold  elharo@metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!


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