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
XML in a Nutshell 3rd Edition Just Published!
http://www.cafeconleche.org/books/xian3/
http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/ref=nosim
