treetopllc/deputy — pull request #4 by blt (2012-04-16 16:36:45+00:00)
Title: Added 'is' rule, allowing assertions of matches.

This rule allows one to assert that a value matches the second term of
the rule tuple according to erlang's usual pattern-match
rules. Example:

check_rule(ok, {is, pineapple}) => error
check_rule(ok, {is, ok}) => ok

Signed-off-by: Brian L. Troutwine