module Geokit

  module Inflector
   
    extend self
   
    def titleize(word)
      humanize(underscore(word)).gsub(/\b([a-z])/u) { $1.capitalize }
    end
   
    def underscore(camel_cased_word)
      camel_cased_word.to_s.gsub(/::/, '/').
      gsub(/([A-Z]+)([A-Z][a-z])/u,'\1_\2').
      gsub(/([a-z\d])([A-Z])/u,'\1_\2').
      tr("-", "_").
      downcase
    end
   
    def humanize(lower_case_and_underscored_word)
      lower_case_and_underscored_word.to_s.gsub(/_id$/, "").gsub(/_/, " ").capitalize
    end
    
    def snake_case(s)
      return s.downcase if s =~ /^[A-Z]+$/u
      s.gsub(/([A-Z]+)(?=[A-Z][a-z]?)|\B[A-Z]/u, '_\&') =~ /_*(.*)/
        return $+.downcase
      
    end
    
    def url_escape(s)
    s.gsub(/([^ a-zA-Z0-9_.-]+)/nu) do
      '%' + $1.unpack('H2' * $1.size).join('%').upcase
      end.tr(' ', '+')
    end
    
    def camelize(str)
      str.split('_').map {|w| w.capitalize}.join
    end
  end

end