11-752: week 3 exercises

Due (by email) 12 noon, 10th April. Only exercise 1 and 2 need be done.
  1. Add a token to word rule, to say money values with two places after the point properly.
  2. Add a token to word rule to say numbers in dates as ordinals (first, second, third, etc.) rather than cardinals. Also add a token to word rule to dates of the form "11/06/97" in their full form rather than number slash number ...
  3. Build a text mode for reading Latex, HTML, syslog messages, machine use summary or such like.