Outline:

1. Recap: Tokenization
2. Designing a tokenizer
3. Recap: Backus-Naur form
4. Parsing
   • parse trees
   • ambiguous grammars
5. Handling errors
6. Wrap-up

What’s next

Upcoming events/assessments:

• Assignments 6–9 (all C assignments) cannot be resubmitted after today at 5pm

What you should do now:

• Read the assigned readings (see below)
• Finish Interpreter Part 2: Talloc
• Read and (barely) start Interpreter Part 3: Tokenizer
• Finish resubmitting Assignments 6–9 with more complete functionality, style fixes, etc.
• Look at CS Courses on Workday and fill out your Match form
• Enjoy midterm break!

Reading assignment (to be completed by the next class):

Parsing (from today and for next time):

• Parsing – you can access this full textbook through the library