FunctX XSLT Functions

Miscellaneous

fn:error	Raises a custom error
fn:trace	Reports tracing information in an implementation-defined way
functx:sequence-type	The sequence type that represents a sequence of nodes or values

fn:exactly-one	Returns a sequence if it contains exactly one item, otherwise errors
fn:one-or-more	Returns a sequence if it contains one or more items, otherwise errors
fn:zero-or-one	Returns a sequence if it contains zero or one items, otherwise errors

fn:element-available	Whether a XSLT instruction is supported
fn:function-available	Whether a function is supported
fn:system-property	Return a system property

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