Old midterms

The questions we did on the board today come from 2006. 

• Midterm 2006 
• Midterm key, 2006 

You might want to start with the version without the key, and only then look at the key.

There are a few older midterms available too ... but no keys for them.

• Midterm 2005 
• Midterm 2001 

I haven't reviewed these older midterms and am not sure how closely they match what we've been doing this term.  I used to spend more time on LL parsing, which I passed over quite quickly this term so that we could start building the parser sooner.

By the way, I was asked whether you should know how to construct First and Follow sets.  Yes, please do.  Note that First is used in LALR(1) parsing as well as LL parsing.  Follow is not used in LALR(1), but the lookahead sets we calculate are closely related, and you should be able to convince yourself that the lookahead set for an LALR(1) item is always a subset of the corresponding Follow set.