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> [snip] >In other words, XML processors may (and should) treat > > <br></br> > >and > > <br/> > >as equivalent, but document authors might want to make the distinction >so that pre-WebSGML SGML parsers can handle their documents. Some of us think this was a significant reduction in the power of XML to represent useful information (the difference between an element that marks a point phenomenon, and one that is empty because it just doesn't have any content). >That begs the question of the processor's information set, however -- >a processor designed for use with repositories or with editors, for >example, needs to preserve lexical as well as structural information >about the XML document, such as comments, general entity references >(even within attribute values), specified vs. defaulted attribute >values, CDATA sections, whitespace within tags, etc. It's not possible to write _valid_ SGML document instances without this information, something not true of comments, DTD, info, or the other lexical information. I think the EMPTY declaration status, and the lexical form of the element occurrence are useful for that practical reason alone. >SAX as it currently stands is not designed to preserve most lexical >information; in the future, we may devise a SAX level-2 to return this >information, but since most applications that need it will probably >use a DOM anyway, the demand may not be strong enough. This information is more than purely lexical, which is why it should be in there... -- David _________________________________________ David Durand dgd@c... \ david@d... Boston University Computer Science \ Sr. Analyst http://www.cs.bu.edu/students/grads/dgd/ \ Dynamic Diagrams --------------------------------------------\ http://www.dynamicDiagrams.com/ MAPA: mapping for the WWW \__________________________ xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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