Author: Circum
Email: [EMAIL PROTECTED]
Message:
Hi all!

The "Realm" cmd is not very functional, if I want to use it's NoMatch feature also. 
Maybe it would be good if someone could narrow the namespace of the valid URLs, not 
only expand. I try to explain it. If you specify two nomatch commands:

Realm NoMatch *A* -> set 'A' contains everything which does not contain the A char
Realm NoMatch *B* -> set 'B' contains everything which does not contain the B char

The current algorithm results with the following set:

A union B ; which is in this example is everything.

It would be great if mnogo would introduce a new syntax which gives us the following 
result:

A intersect B == not ( (not A) union (not B) ) ; i.e. everything which does not 
contain "A" or "B". 

This would help to write complex contstraints on URLs. Anyway, I can imagine that this 
feature is not needed often, as it seems to me that it can be achieved by a Realm 
Match command, followed by an 'Index no' command.

Also, you cannot control whether the 'Realm NoMatch' and the 'Realm Match' commands' 
results are unioned or intersected (currently always unioned, so it is impossible to 
narrow a matching criteria with a 'NoMatch' command).


Reply: <http://www.mnogosearch.org/board/message.php?id=4342>

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