-- :wq
On Fri, 31 Mar 2000, Mike Pogue wrote: > Thanks to the folks from Sun for all their hard work in making this > happen! Now we have some work to do! :-) > > The xml-contrib area is designed so that people can look at the code, > try it out, etc. The license issues have all been worked out, and the > code is now under the Apache 1.1 license, so feel free to look at it, > play with it, figure it out, etc. > > I have a couple of major suggestions (I'm sure that other people have > more): > > 1) It has been reported that the Crimson code is 50% faster than > Xerces-J when running on a Sparc Ultra-5, however Xerces-J is 40% faster > than Crimson on a Windows NT machine. It's not obvious to me why this > would be true! We need to figure out WHY, so we can create a single > code base that is fast on BOTH. > > 2) Crimson has a DOM implementation that is particularly interesting. > It has been reported that it "scales better" as the size of an XML > document goes up, but that is not my experience (but, I've been looking > only at Windows NT, so this could again be a Sparc/Windows difference). > This could be due to differences in memory consumption, or something > else altogether. We should be able to figure out what's going on here, > and get the best of both worlds. Because the Xerces DOM is pluggable, > we might need to end up with two DOM's that are optimized for two > different things: a) the current deferred DOM is optimized for > performance, but maybe not for memory consumption, and b) perhaps the > Crimson DOM is optimized for memory consumption. The differences were in the SAX parsing. In DOM there was no difference on windows / Sparc. On both the platforms the crimson dom parser scales better in both the time to create the DOM and the size of the files. - Rajiv > > 3) Now that we can see the XHTML code, we should be able to compare > Assaf's HTML parser code, and the new Crimson code, so we can end up > with the best of both. We routinely get requests for HTML parsing, and > this is a pretty self-contained area, so it's a great opportunity to > jump in and contribute! > > All of these things are high on my list -- does anybody want to take a > crack at them? This is a great opportunity for some new people to jump > in, and check out all the code... > > Mike > > P.S. Traffic is now moving to the xerces-j list...please adjust your > mailing list subscriptions accordingly! > > Rajiv Mordani wrote: > > > > Announicing the release of the code for Crimson XML Parsing Core Library.. > > This code is based on Sun's Java Project X and is available via the cvs > > module xml-contrib/crimson for people to look at... Please read the README > > for directions on how to build the source. The list of features to be > > included into xerces is yet to be decided. > > > > - Rajiv > > > > -- > > :wq > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] >
