Re: SAX LexicalHandler::comment issue
David Brownell wrote: > > What are other peoples thoughts? Is it worth proposing > > startComment()/comment()/endComment() for SAX x.x? > I tend to think not; what's the real win to changing that API? > There's a measurable cost to changing APIs that are widely > deployed ... I can't see an offsetting benefit. I didn't mean to suggest that this issue alone deserves a new version of SAX - I agree the benefit is too small. Rather, when sufficient pressure for change occurs, this issue should be considered as part of any new release. > I'd rather discourage folk from using comments in applications, > actually ... :) So far as I know, the primary use case for reporting > comments is to support DOM bells'n'whistles. Comments are sometimes used to temporarily 'remove' large sections of a document. I don't think you will ever be able to discourage this sort of activity. Indeed it is this sort of activity that creates potentially very large comments which may cause SAX processors a problem. > There's a similar issue with reporting PIs ... the data passed to > the target can be arbitrarily large. Any application that really > cares about the content of comments should really be using PIs > instead. (Text editors aside -- and those can't really be using > "Application" programming interfaces.) I don't see why comments should be treated any differently to any other XML information items. > On the other hand, I can't see worrying that names for elements, > attributes, entities, and notations have no size limits, which is > the other main place that SAX expects data to be string-ized. In real life, element and attribute names are never likely to grow outrageously large. Attribute values, on the other hand may do. However, because attribute values are subject to normalization, a SAX processor has no choice but to buffer the entire value. Thanks for your input David. I had a feeling you would have something to say about this;-) Regards ~Rob -- Rob Lugt ElCel Technology http://www.elcel.com/
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