Hi, In my plan,i will first implements all the 2.0 functions which do not use sequences and schema-type,because this job is easy and very practical,may be some guys and expecting these functions become reality in Xalan, so i will start here,and call this job step one :)
After finish step one,i will do structure changes job to make Xalan be in line with XSLT 2.0 and XPath 2.0 declation,implements all the XSLT 2.0 datamodel,this is step two. Then,i should finish all the other 2.0 functions using sequences and schema-types,this is step three. I know this is a huge project, may be it will cost me years to finish it, i will hold it as a open source project under Apahce licence 2.0 and host it in Google code, and also keep in touch with xalan to check if they are interested in my job,if they do, i will share my codes and finish all the jobs with them together. 2010/3/12 <kesh...@us.ibm.com> > Implementing 2.0 requires some moderately basic data structure changes to > track Schema types (I believe there's a stub in the code, but not more than > that) and to handle Sequences which aren't simply nodesets. Doable, but not > simple. > > I'd love to see Xalan tackle it -- but Xalan lost its most active > contributors a few years ago due to time demands from Real Jobs, and > development slowed down as a result. > > Starting with some of the 2.0 functions (a 2.0 subset) is an interesting > idea. Unfortunately I don't think there's any good way to make that very > portable; it would have to be treated as extensions to a 1.0 processor which > are syntax-compatible with the 2.0 versions. And you certainly couldn't > tackle the whole 2.0 library; some of the functions use sequences and > schema-types. > > So... I'd say that if you like the idea, you should start drafting versions > of this and submit them to Xalan as proposed changes when you've got a large > enough bundle to be an interesting contribution. But you might want to check > with the current committers to see whether they'll be receptive to the idea > before starting. (I'm probably still on that list, but as the blues song > says, I'm currently "overworked, underpaid, underloved and overlayed." > > ______________________________________ > "... Three things see no end: A loop with exit code done wrong, > A semaphore untested, And the change that comes along. ..." > -- "Threes" Rev 1.1 - Duane Elms / Leslie Fish ( > http://www.ovff.org/pegasus/songs/threes-rev-11.html)
