Subject: RE: [xsl] What is exciting in XSLT 2.0 (Was: Re: [xsl] parameters in XSLT 2.0) From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Wed, 8 Jun 2005 14:42:15 +0100 |
> Yes, I know this, and use them quite a bit in my stylesheets. I was > referring to the higher-order functions that Dmitre is > interested in. > The FXSL docs assume a fairly specific audience that is not me. Consider two important bits of functionality that are present in XSLT 2.0 but not in XQuery 1.0: analyze-string and for-each-group. These needed custom syntax in XSLT 2.0: they couldn't be implemented as standard functions, because they are higher-order - they take functions (or instructions) as their arguments. It's difficult to define custom syntax in XQuery, which is why these facilities were omitted. But with higher-order functions, you can implement these facilities without any new syntax, and indeed I have done so for the benefit of XQuery users: see http://www.saxonica.com/documentation/extensions/functions/analyze-string.ht ml http://www.saxonica.com/documentation/extensions/functions/for-each-group.ht ml Michael Kay http://www.saxonica.com/
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