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RE: SaxonProcessorVsParser

2004-08-17 15:47:16

I need to clear the diferrence between an xml parser and an xslt
processor.I mean
doesn't an xslt processor ought to have parsing capabilities 
as well in
order to first parse
the input document and used xslt document into trees and then apply
templates producing the final tree?
In this case we are talking about the same software (parser 
and processor),
meaning that
a processor has to be a parser as well.Is this true?

An "XSLT processor", as defined in the specs, starts with a tree
representation of the source document, which is the output of the "XML
processor" (which is usually referred to as an XML parser).

In practice most products that include an XSLT processor either bundle an
XML parser with the product, or invoke the XML parser provided by the
platform.

Among the core services MSXML 4.0 provided was developer 
support for DOM,
SAX and XSLT1.
I mean as far as i can understand the MSXML environment incorporated a
parser and an xslt
processor as well.

Correct.

Does the same thing stand for saxon?I might sound naive with 
this question,
but i need to clear
it out.I ' ve used saxon succesfully for my transformations 
and my question
only has theoretical
interest.Does saxon use DOM API to parse the input documents 
into trees and
then carries out
with the rest of the transformation procedure to the final 
serialization of
the output tree
into the output xml?


Saxon accepts input from the SAX stream or DOM tree produced by an XML
parser; alternatively if you give it a raw XML document it will invoke the
XML parser of your choice to parse the XML. But the XML parser is not part
of the Saxon product.

Michael Kay



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