Class: ReeNumber::NumberToRounded

Inherits:
Object
  • Object
show all
Includes:
Ree::FnDSL
Defined in:
lib/ree_lib/packages/ree_number/package/ree_number/functions/number_to_rounded.rb

Constant Summary collapse

DEFAULTS = 
{
  precision: 3,
  significant: false,
  strip_insignificant_zeros: false,
  delimiter: "",
  round_mode: :default
}.freeze

Instance Method Summary collapse

Instance Method Details

#call(number, **opts) ⇒ Object 



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# File 'lib/ree_lib/packages/ree_number/package/ree_number/functions/number_to_rounded.rb', line 51

def call(number, **opts)
  options = DEFAULTS.merge(opts)

  rounded_number = round_helper(
    number, 
    **slice(
      options, 
      [:precision, :significant, :round_mode]
    )
  )

  if precision = options[:precision]

    if options[:significant] && precision > 0
      digits = digit_count(rounded_number)
      precision -= digits
      precision = 0 if precision < 0
    end

    formatted_string = 

      if rounded_number.finite?
        s = rounded_number.to_s("F")
        a, b = s.to_s.split(".", 2)

        if precision != 0
          b << "0" * precision
          a << "."
          a << b[0, precision]
        end
        a
      else 
        "%f" % rounded_number
      end

  else 
    formatted_string = rounded_number
  end

  delimited_number = number_to_delimited(formatted_string, **slice(options, [:separator, :delimiter]))
  options[:strip_insignificant_zeros] ? format_number(delimited_number) : delimited_number
end