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#
# > Firstly, turning on the feature might fail. I don't know how many
# > parsers don't support the feature; I would have to decide
# whether to
# > support such parsers or not; I would have to test the code
# that handles such a failure.
#
# This is a required feature. Of course, that doesn't mean all
# parsers actually do it.
We're talking about the namespace-prefixes feature:
From XMLReader#setFeature:
All XMLReaders are required to support setting
http://xml.org/sax/features/namespaces to true and
http://xml.org/sax/features/namespace-prefixes to false.
and from ContentHandler#startElement:
The attribute list will contain attributes used for Namespace declarations
(xmlns* attributes) only if the
http://xml.org/sax/features/namespace-prefixes property is true (it is
false by default, and support for a true value is optional).
#
# > Secondly, the parser would then give me namespace
# declarations in the
# > attributes list that I'm not interested in. It would
# presumably have
# > to do extra work to put them there, and I would have to do
# extra work
# > to take them out again.
#
# I don't follow this. Setting namespace-prefixes means that
# you get the prefixes associated with each element and
# attribute that has one.
# It doesn't involve inserting new attributes.
See above.
Michael Kay
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