Subject: Re: Positional predicates in pattern matching
From: David Carlisle <davidc@xxxxxxxxx>
Date: Fri, 2 Jul 2004 17:18:41 +0100
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> "If there are several predicates in the StepPatten, then position() and last()
> in predicates after the first apply to the nodes that survived the previous
> predicates"
yes that means if you have
b[something][2]
then you get the second b for which something is true.
as opposed to
b[2][something]
in which case you get the 2nd b (if something is true) and nothing
otherwise.
But your something was true() and
b[true()][2]
is the same as
b[2]
or b[1+1] or any number of equivalent expressions.
David
--
The LaTeX Companion
http://www.awprofessional.com/bookstore/product.asp?isbn=0201362996
http://www.amazon.co.uk/exec/obidos/tg/detail/-/0201362996/202-7257897-0619804
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