Re: [xsl] RE: [SPAM] - RE: [xsl] RE: [SPAM] - Re: [xsl] characters in xsl - Bayesian Filter detected spam - Bayesian Filter detected spam

[David Carlisle <davidc@xxxxxxxxx>]

>  I haven't got it.

when considering // it's important to distinguish select expressions
(which use Xpath) to Match patterns (which use an XSLT-specific
construct that looks a lot like a subset of Xpath, but is actually
separately defined). Actually it's important to disinguish these all the
time but usually people find // is the first problem case...

select="foo" 
just selects the foo children of teh current node, and
select="//foo"
selects all the foo elements in the document.

however

match="zzzz"

matches the current node if there is any node anywhere in the tree such
that the Xpath zzzz evealuated at this other node would select a node
set that includes the current node.

so
match="foo"
matches any foo element anywhere as evaluating select="foo" on the
parent of that node would select the foo node.
similarly
match="//foo" also matches any element as evaluatinng that on an
ancestor of the current element will select the current element.

Note // is not always redundant in match patters, just redundant at the
beginning.

match="a//b" matches all b elements that have a as an ancestor, as
select="a//b" evaluated on the parent of a would select those b
elements.

David

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