[sc34wg3] TMQL: Predicate invocation and scope

Lars Heuer heuer at semagia.com
Tue Jul 1 12:23:52 EDT 2008

Hi Robert,

>> IMO it would be nice if the user can constrain the scope of a
>> predicate-invocation, like:
>>      member-of[@year-1969](member: $p, group: $g)
>> Otherwise the user has to fall back to path expressions and cannot use
>> the (more readable) predicate invocations.

> Have you considered how many different combinations there are for
> filtering scopes?

No, but I don't understand why that shortcut notation would introduce
problems which currently do not exist. If the user rewrites the
predicate-invocation into a path-expression, the scope must be
considered, too.

Best regards,

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