RE: [xsl] xslt 2.0 castable as

Subject: RE: [xsl] xslt 2.0 castable as
From: David.Pawson@xxxxxxxxxxx
Date: Mon, 2 Feb 2004 12:51:26 -0000
    However, the latest specs have aligned casting with XML 
    Schema validation, which means that ('non-roman' cast as 
    xs:float) should fail, and "castable as" should therefore 
    return false.

Thanks Mike. That will be much appreciated.

    I'll update the software to match. Meanwhile, 
    I suspect that what you really want is "castable as 
    xs:decimal", which should work OK in the current Saxon.

Not being a types type, I hadn't sought out the difference,
if its possible in the specs.

    Alternatively, you could use a regex to test whether the 
    value is numeric, which might be more efficient anyway 
    ("castable as" in its current implementation involves 
    throwing and catching an exception, which is very expensive 
    in Java).

and falls over badly when all the other cases are tested for :-)

Thanks again, I'll look at that option,

    hopefully I can get terms from non match
    targets from the matches!

regards DaveP


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