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- From: Gabe Beged-Dov <email@example.com>
- To: XML List <firstname.lastname@example.org>
- Date: Sat, 27 Mar 1999 13:37:40 -0800
I have been thinking about optimal XML parsing, partly as a result of
the binary XML discussion. Right now the world of XML parsers is divided
into well-formedness and validating. Another type being discussed is
I'd like to propose another, the half-baked parser. This parser is
mentioned in the notes for section 5.1 of the annotated XML spec (not in
a positive light :-).
The half-baked parser can only process XML documents that don't have a
prologue. This makes its memory footprint and execution path much
smaller and faster respectively. Unfortunately, it isn't a legal XML
This can be addressed by having a modular parser architecture that would
be optimistic and try the half-baked parser first. If it encountered a
prologue, it could load either a WF parsing module or a validating
I think that a highly tuned half-baked parser in combination with an
optional stream-oriented compression scheme would address many of the
concerns that something like binary XML is intended to deal with in both
the transmission, storage and execution speed dimensions.
A great discussion of modular layered parsing can be found on Simon St.
Laurent's web site (www.simonstl.com).
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