Re: expression value not a node set on content match

oops I just posted an anaysis of the expression
@code='g' 
	 contains(text(),'21 ')
                and *[ @code='x'
                       and contains(text(),'0141-6400')


but I notice that you in fact have

	select="record[ @tag='773'/*[@code='g' ....
	
which certainly isn't correct but which I can't correct as I
don't know what it is supposed to mean. 
 @tag='773' is a boolean: it's true if the current node has an
                          attrbute called tag with value 773

you can't use the / operator after a boolean valued expression
only after a node set.

I _think_ you want (looking at the original post)

record[
  data-field[@tag='773']
    [subfield[@code='x']='0000-1234'
     and
     contains(subfield[@code='g']='21 ')
     ]
   ]

David


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