class Temple::Mixins::GrammarDSL::Or

def <<(rule)
  @children << @grammar.Rule(rule)
  self
end

def after_copy(source)
  @children = @children.map {|child| child.copy_to(@grammar) }
end

def initialize(grammar, *children)
  super(grammar)
  @children = children.map {|rule| @grammar.Rule(rule) }
end

def match(exp, unmatched)
  tmp = []
  @children.any? {|rule| rule.match(exp, tmp) } || (unmatched.concat(tmp) && false)
end