module Geocoder

def spawn_lookup(name)
  if valid_lookups.include?(name)
    name = name.to_s
    require "geocoder/lookups/#{name}"
    klass = name.split("_").map{ |i| i[0...1].upcase + i[1..-1] }.join
    Geocoder::Lookup.const_get(klass).new
  else
    valids = valid_lookups.map(&:inspect).join(", ")
    raise ConfigurationError, "Please specify a valid lookup for Geocoder " +
      "(#{name.inspect} is not one of: #{valids})."
  end
end