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Cat VS Printer
September 11, 2008

http://gizmodo.com/5048489/cat-kos-printer-in-vicious-boxing-match

Whew, worth a good laugh.


Exercise 13: Rule parser
September 11, 2008

Summary

Write a parser to allow rules to be added to the brain. Add a hash to the brain called "rules" that indexes rules on the following three items:

1.	Their type

2.	Their first non-variable entity type

3.	Their second non-variable entity type

Test cases

Click here


Exercise 12: Rule class design
September 11, 2008

Summary

The objective of this exercise is to complete a class design for rules as described in an earlier post.

A rule can have one or more conditions.

A rule has exactly one conclusion.

A rule condition is basically the same as a transformation output specification, whereby any token can be replaced with a numbered variable.

Likewise, a rule condition is basically the same as a transformation output specification.

The rule conclusion can only use variables that are referenced in one or more rule conditions.

A rule has a type: A rule is either an "assignment rule" or a "relationship rule".

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