It isn't correct to use "repetition" for a set of operations that are
independent from each other and can be executed in any order or in
parallel.

In this group fall such operations as <xsl:for-each>. the XPath for
expression, the ! (bang) operator and applying a function in the last
location step of an XPath step-expression (sorry if I don't remember
the exact terminology).

All of these are *mapping" operations, like the map function in
Haskell. These have nothing to do with repetition.

--
*John Lumley* MA PhD CEng FIEE
john@xxxxxxxxxxxx <mailto:john@xxxxxxxxxxxx>
on behalf of Saxonica Ltd