[Chapter 10] 10.6 Things to Try
Author: Bryan Costales & Eric Allman
Date: 1999-01-06T18:36:26Z

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| Chapter 10 Rule Set 3 |

## 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.

10.5 Details of Rule Flow |  | 11. Rule Sets 1 and S=