If SAX == lex, then what == yacc?

James Tauber jtauber at jtauber.com
Mon Nov 22 14:21:27 GMT 1999

> A thought that struck me (and probably struck many of you before me) is
> the event stream from a SAX parser is much like the token stream from a
> analyser, like 'lex'.  This made me wonder what the equivalent to 'yacc'
> be in this picture; an application that help you construct the logic for
> with event streams.  Is there such an application?

FOP (and I suspect a lot of XML applications) takes SAX events and builds a
tree structure out of objects that belong to a class depending on the
element type or attribute. This tree building is handled through a largely
generic builder and the mappings from element and attribute name to class
name are provided to the builder at run-time. In the case of attributes (and
perhaps eventually elements), the actual classes themselves are generated
from XML schemas.

I don't know if it is the equivalent of "yacc" but it seems to be a fairly
generic way of dealing with event streams that still allows
application-specific tailoring.

James Tauber

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To unsubscribe, mailto:majordomo at ic.ac.uk the following message;
unsubscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)

More information about the Xml-dev mailing list