Re: referring to variables using variables?

  Thanks very much for your help so far, just wanted to make absolutely sure i 
  understand the select statement in the for-each element  
  select="xx:node-set($index)/*", does it mean that every variable in index is 
  a node and if so why do you have to do that?

Michael's solution using xx:node-set() was the same as teh one I posted
using document().

It isn't that "every variable in index is  a node"  $index is a single
variable, with value a node set. "node set" is the main Xpath type and
is the only type that you can apply path expressions using / to
(The other Xpath types being number, boolean and string)

You can not, in XSLT 1 construct a new node set, only subset (using
selct expressions) node sets corresponding to input documents.

So to get a suitable node set, I suggested making a second input
document and including it with document() which gives a node set
consisting of a single document node, michael suggested putting similar
information in a variable (which produces a result tree fragment) and
then converting that to a node set with a single document node using a
node-set extension function.

Either way you end up with an in-mempry document that you can use as a
lookup table mapping from names to uris. You don't need to explictly
iterate over the table as the document() function is designed to accespt
a set of nodes as its argument, in that case it takes the string value
of each node, and interprets it as a uri, and returns the document
resulting from fetching that uri.

David

-- 
http://www.dcarlisle.demon.co.uk/matthew

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