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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: transforming XSLT files to use XSLT3 features
 The approach is limited by its use of template matches and regular expressions. For some reason, I donbt feel inclined to write an XPath grammar parser in XSLT. But still, some low-hanging fruit can be obtained. Have a look at Gunther Rademacher's REx Parser Generator https://www.bottlecaps.de/rex/ It can be used to generate an XSLT parser for XPath 2. (I've used it extensively in the past for analysing XPath 3 expressions.) An alternative, if your XSLT platform supports it, is to use an InvisibleXML parser https://invisiblexml.org/ There is an iXML grammar forB XPath3.1 available (https://github.com/invisibleXML/ixml/tree/master/samples/XPath) which will also parse XPath2. You may be able to experiment with this using Martin Honnen's XSLT3 Fiddle (https://martin-honnen.github.io/xslt3fiddle/) which supports invisibleXML parsing functions. John Lumley 
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