[developers] processing of lexical rules

[Berthold Crysmann]

Ann Copestake wrote:

>the new code (in the branch tok-and-morph, but due to be reintegrated as soon 
>as possible) uses an extended version of the rule filter.  Ben is going to add 
>a filter which checks which lexical types can feed which rules. 
>
Will this also work for rule cascades? Most of the combinatory explosion 
I get comes from the illicit interleaving of adjectival, verbal and 
nominal inflection rules.

> There's also 
>the possibility of doing packing.  I don't think there's any point trying to 
>modify the old code.
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Sure.

>Ann
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