> foo - bar
>
> to indicate something that matches foo but doesn't contain any bar
> descendants. Then I think this restriction can be described by saying that
> the content of a group or interleave element not inside a list element must
> match
>
> (pattern - data - value) (pattern - data - value)
> | pattern (pattern - text - data - value)
> | (pattern - text - data - value) pattern
The following might be better
(pattern - {data,value}) (pattern - {data,value})
| pattern (pattern - {data,value,text})
| (pattern - {data,value,text}) pattern
At first I was confused because A-B is whether left-associative or
right-associative.
regards,
--
Kohsuke KAWAGUCHI +1 650 786 0721
Sun Microsystems
