hash.search

gistfile1.rb

class Hash
  def search(m)
    retval = []
    self.each_pair do |k,v|
      if v.kind_of?(Hash)
        v.search(m).each {|u| retval << [k,*u]}
      else
        rets = case m
        when Regexp
          v.to_s =~ m
        when Class
          v.kind_of?(m)
        else
          v == m
        end
        retval << k if rets
      end
    end
    retval
  end
end