Re: Newbie question on XSL transformations: multiple
It is not that trivial, because the languages differ so much. I am not sure about published figures, but I remember a post on this list by Dimitre Novatchev (I hope I am right about the poster's name) who showed with FXSL a magnitude of performance gains.
That said, a simple example shows what can be achieved and why it is so significant. In XSLT 2, you can write "replace($value, "someString", "someOtherstring"), to replace all occurrences of 'someString' with 'someOtherstring' in the value $value (these can be regular expressions, but parsing a regex in XSLT 1 is so utterly complex and time consuming, the comparison wouldn't be fair). The same replace will take a recursive template in XSLT 1.
Even without running the tests, you can imagine that XSLT 2 processor designers can optimize a single function with strict semantics much easier than they would with a complex recursive template.
Similar performance gains are made with XSLT having a new type system, with strong typing and sequences, which both were not there in XSLT 1. Not having a Node type just about everywhere makes for pretty amazing performance gains.
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