10.6 Things to Try

• Design a rule whose LHS always matches anything in the workspace and whose RHS always rewrites so as to leave the workspace unchanged. What happens when you test this rule?

• Design a rule whose LHS will match name in the workspace but will not match name@host . Is this possible with just $+ and $* ?

• What happens if you arrange rules in a different order? Try reversing the first two rules in our rule set 3.