# encoding: utf-8

{
  'googol' => [%w(googol),             1e100],
  'yobi'   => [%w(Yi Yobi yobi),       2**80],
  'zebi'   => [%w(Zi Zebi zebi),       2**70],
  'exbi'   => [%w(Ei Exbi exbi),       2**60],
  'pebi'   => [%w(Pi Pebi pebi),       2**50],
  'tebi'   => [%w(Ti Tebi tebi),       2**40],
  'gibi'   => [%w(Gi Gibi gibi),       2**30],
  'mebi'   => [%w(Mi Mebi mebi),       2**20],
  'kibi'   => [%w(Ki Kibi kibi),       2**10],
  'yotta'  => [%w(Y Yotta yotta),      1e24],
  'zetta'  => [%w(Z Zetta zetta),      1e21],
  'exa'    => [%w(E Exa exa),          1e18],
  'peta'   => [%w(P Peta peta),        1e15],
  'tera'   => [%w(T Tera tera),        1e12],
  'giga'   => [%w(G Giga giga),        1e9],
  'mega'   => [%w(M Mega mega),        1e6],
  'kilo'   => [%w(k kilo),             1e3],
  'hecto'  => [%w(h Hecto hecto),      1e2],
  'deca'   => [%w(da Deca deca deka),  1e1],
  '1'      => [%w(1),                  1],
  'deci'   => [%w(d Deci deci),        Rational(1, 1e1)],
  'centi'  => [%w(c Centi centi),      Rational(1, 1e2)],
  'milli'  => [%w(m Milli milli),      Rational(1, 1e3)],
  'micro'  => [%w(u µ Micro micro mc), Rational(1, 1e6)],
  'nano'   => [%w(n Nano nano),        Rational(1, 1e9)],
  'pico'   => [%w(p Pico pico),        Rational(1, 1e12)],
  'femto'  => [%w(f Femto femto),      Rational(1, 1e15)],
  'atto'   => [%w(a Atto atto),        Rational(1, 1e18)],
  'zepto'  => [%w(z Zepto zepto),      Rational(1, 1e21)],
  'yocto'  => [%w(y Yocto yocto),      Rational(1, 1e24)]
}.each do |name, definition|
  RubyUnits::Unit.define(name) do |unit|
    aliases, scalar = definition
    unit.aliases    = aliases
    unit.scalar     = scalar
    unit.kind       = :prefix
  end
end