Re: expression value not a node set on content match

[David Carlisle <davidc@xxxxxxxxx>]

You deleted the (needed) and operator that was in the example that you
quoted. 
You have the expression
record[ @tag='773'/*[@code='g' contains(text(),'21 ')
                              ^
                and *[ @code='x'
                       and contains(text(),'0141-6400') 

but the error is where I put the ^.

Inside the [] you have to have a boolean valued expression
(you get the nodes on which the expression evaluates to true.

@code='g'
is the boolean expression returning true on nodes with an
attribute with name code and value g.

contains(text(),'21 ')

is a boolean expression that is true on nodes with a text node
child that contains the substring '21 '

you need to combine those expressions with an operator like and or or
you can't just run them together,

You do use and to connect your third subterm which is

*[ @code='x' and contains(text(),'0141-6400') ]

This is a node set valued term but will coerce to a boolean being true
as long as the node set is non-empty, ie if there is some child of your
record element, such that the child has a code attribute with value x
and character data containing 0141-6400

David


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