BASIC grammar

Hi,

I'm looking for a BASIC grammar.  Not necessarily the original BASIC 
language - I'd be happy with a more modern dialect like QBasic.  I can 
infer a lot from Microsoft's QBASIC help file, but I'd really like to 
get my hands on a LL(1) grammar.  I could probably try to write my own, 
but I don't know enough about compiler theory to do it.  I'd like to 
take a stab at writing a recursive descent parser.  So bearing this in 
mind, small is beautiful at this stage. :)

Thankyou,
Johnathan