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Now, I would like to provide concat() a value for the first argument and leave undefined two arguments. So I tried this:
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XPath #4
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let $concat3 := concat#3('Section') return $concat3(': ', 1)But that generates this error: Required item type of target of dynamic
function call is function(); supplied value
has item type xs:stringWhat is that error message saying? I suspect the processor has decided that $concat3 will always be a string (because the result of concat#3 is always a string), and you can't do X(y,z) if X is a string. This is what Saxon (9.4) says, which I hope is more helpful: XPTY0004: Error in dynamic function call. Number of arguments required = 3; number supplied = 1 Saxon is complaining here about concat#3('Section') - concat#3 expects three arguments (or place-holders) and you've only supplied one. let $concat3 := concat#3('Section', ?, ?) return $concat3(': ', 1) Michael Kay Saxonica
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