Subject: Re: [xsl] is XSLT 2.0 implementable? (was: N : M transformation) From: David Carlisle <davidc@xxxxxxxxx> Date: Tue, 4 Feb 2003 12:13:10 GMT |
If, as many people on this list are predicting, users don't care a damn about having schema support, then they are unlikely to miss it. The market will decide. But they have to pay the price of vastly increased complexity in the specification (and one assumes in the text books that will follow). They also have already paid the price of several years delay in getting out a usable successor recommendation to XSLT1 that standardises many of the features that were recognised as missing even before XSLT1 was a rec. (rtf-nodeset/grouping/multiple output etc, also user xslt-defined functions which is another good part of the current XSLT2). As the conformance levels are not specified it's hard to comment on them but it would seem likely given the current XSLT draft that given a document and a stylesheet which does not refer to a schema explictly a schema-aware XSLT engine will produce different results (because it sees vastly different input) than a non-schema aware processor if the schema-aware parser used by former happens to validate the document against a schema of its choice. Simple expressions like string-length(.) will no longer inter-operate amongst processors, even amongst schema-aware processors, some will return the length of the original character data, some will return the length of the canonical representation of the typed value. If simple expressions like that can no longer interoperate, what chance of real sized stylesheets with thousands of such expressions? David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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