Subject: parsing using difference lists

From: j s <[email-masked]>
Date: 21 Nov 00 00:19:23 EST

Hello all!

How exactly do you do parsing using difference lists. How would you parse this
BNF grammar in prolog using difference lists:

<expn> ::= <name> | 
       ::= the <reln> of <expn> | 
       ::= <expn> poss <reln> 
<reln> ::= mother | father | sister | brother | son | daughter

Thank you. 

Junaid

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