xpath()

Finds the value of an XPath expression given a match component containing XML.

Data signatures
xpath( from this XML: $${\color{green}str}$$ ǁ '' ǁ $${\color{green}None}$$, select this XPath: $${\color{green}str}$$ )

Call signatures
xpath( from this XML: Term ǁ Variable ǁ Header ǁ Function ǁ Reference, select this XPath: Term ǁ Variable ǁ Header ǁ Function ǁ Reference )

Purpose	Value
Main focus	xpath() produces a calculated value

Context	Qualifier
Match qualifiers	onmatch
Value qualifiers	onmatch

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