Claus
Simple rule expression using a combination of Array and Hash.
Example
require 'claus'
claus = Claus.new(foo: 1, bar: 2)
claus.match(foo: 1, bar: 2) #=> true
claus.match(foo: 1, bar: 3) #=> false
claus.match(foo: 1, bar: 2, baz: 3) #=> true
claus = Claus.new(foo: 1, bar: 1..2)
claus.match(foo: 1, bar: 2) #=> true
claus = Claus.new([{foo:1}, {bar:2}])
claus.match?(foo: 1) #=> true
claus.match?(bar: 2) #=> true
claus.match?(baz: 3) #=> false
# Chaining AST nodes - same as above.
claus = Claus.new [{foo: 1}, Claus.new(bar: 2)]
claus.match?(foo: 1) #=> true
claus.match?(bar: 2) #=> true
claus.match?(baz: 3) #=> false