"Colin" == Colin Paul Adams
<colin(_at_)colina(_dot_)demon(_dot_)co(_dot_)uk> writes:
Colin> Or are you requesting banning non-pure functions
Colin> altogether? This would mean disallowing calls to extension
Colin> functions, or else insisting extension functions must not
Colin> have side-effects. The latter condition would be
Colin> incompatible with XSLT 1.0, I think
Actually, it's far worse than that - functions such as last() are not
referentially transparent, so you can't have referential transparency.
Given that, would there be any advantage to having f($x) is f($x)
always returning true()?
--
Colin Adams
Preston Lancashire
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