Subject: Re: [xsl] Re: : Re: AW: Article: An XSL Calculator: The Math Modules of FXSL --> ? From: Jeni Tennison <jeni@xxxxxxxxxxxxxxxx> Date: Thu, 20 Jun 2002 18:14:07 +0100 |
Dimitre, > In fact I was going to ask Jeni if I was wrong in pointing out the > differences in approach and implementation between FXSL and EXSLT. In my view, the primary role of EXSLT is to create standard definitions for and namespaces for extension functions and elements. EXSLT provides third-party implementations, as both user-defined extension functions and pure XSLT 1.0 templates, of those functions that it can as a backup, to help users create portable stylesheets, but I don't think that EXSLT should be seen as solely or primarily a library of these implementations. It would be nice if it were possible for the EXSLT site to point to different EXSLT function implementations (with those in pure XSLT 1.0 as templates, naturally) in libraries such as the FXSL library and the XSLT Standard Library, just as it does to the different vendor implementations in different processors. That isn't possible unless the libraries adopt the same function and parameter names/namespaces as specified in EXSLT, however. With Xalan's new implementations of most of the "core" EXSLT functions (hooray!), I'm planning to go through and update most of the EXSLT pages soon. At the same time, I'd like to update the implementations that are available on the EXSLT site, since many of them are suboptimal. We haven't got any XSLT or EXSLT func:function implementations of the trig functions at the moment, so I was going to ask -- would it be OK to use those from the FXSL library (crediting you, naturally)? If so, would you prefer me to copy across (or reference) the entire FXSL calculator and write wrapper templates to add EXSLT support, or can I just copy and adapt the 'meat' of the calculator as separate template/function implementations? Cheers, Jeni --- Jeni Tennison http://www.jenitennison.com/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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