grammar Primitive
  include Helper

  rule primitive
    string | bool | datetime | number
  end

  rule string
    (/(["'])(?:\\?.)*?\1/ space) <TomlString>
  end

  rule bool
    true | false
  end

  # Full Zulu form
  rule datetime
    (y:/\d\d\d\d/ "-" m:/\d\d/ "-" d:/\d\d/ "T" h:/\d\d/ ":" mi:/\d\d/ ":" s:/\d\d/ "Z") {
      y,m,d,h,mi,s = [:y,:m,:d,:h,:mi,:s].map{|s| capture(s) }
      Time.utc(*[y,m,d,h,mi,s].map(&:value))
    }
  end

  rule number
    float | integer
  end

  rule float
    (integer '.' integer) { to_str.to_f }
  end

  rule integer
    (sign? [0-9]+) { to_str.to_i }
  end

  rule sign
    '+' | '-'
  end

  rule key
    [a-zA-Z_] [a-zA-Z_0-9#?]*
  end

  rule true
    'true' { true }
  end

  rule false
    'false' { false }
  end
end