Class: Hanami::View::Helpers::NumberFormattingHelper::Formatter Private

Inherits:
Object
  • Object
show all
Defined in:
lib/hanami/view/helpers/number_formatting_helper.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Formatter

Since:

  • 2.1.0

Class Method Summary collapse

Class Method Details

.call(number, delimiter:, separator:, precision:) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

See Also:

Since:

  • 2.1.0



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# File 'lib/hanami/view/helpers/number_formatting_helper.rb', line 113

def self.call(number, delimiter:, separator:, precision:)
  number = coerce(number)
  str = to_str(number, precision)
  array = parts(str, delimiter)

  array.join(separator)
end

.coerce(number) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Coerces the given number or string into a number.

Since:

  • 2.1.0



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# File 'lib/hanami/view/helpers/number_formatting_helper.rb', line 125

def self.coerce(number)
  case number
  when NilClass
    raise ArgumentError, "failed to convert #{number.inspect} to number"
  when ->(n) { n.to_s.match(INTEGER_REGEXP) }
    Integer(number)
  else
    begin
      Float(number)
    rescue TypeError
      raise ArgumentError, "failed to convert #{number.inspect} to float"
    rescue ArgumentError => exception
      raise exception.class, "failed to convert #{number.inspect} to float"
    end
  end
end

.delimit_integer(integer_part, delimiter) ⇒ String

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Delimits the given integer part of a number.

Parameters:

  • integer_part (String) —

    integer part of the number

  • delimiter (String) —

    hundreds delimiter

Returns:

  • (String) —

    delimited integer string

Since:

  • 2.1.0



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# File 'lib/hanami/view/helpers/number_formatting_helper.rb', line 173

def self.delimit_integer(integer_part, delimiter)
  integer_part.gsub(DELIMITING_REGEX) { |digit| "#{digit}#{delimiter}" }
end

.parts(string, delimiter) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns the integer and fractional parts of the given number string.

Since:

  • 2.1.0



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# File 'lib/hanami/view/helpers/number_formatting_helper.rb', line 159

def self.parts(string, delimiter)
  integer_part, fractional_part = string.split(DEFAULT_SEPARATOR)
  [delimit_integer(integer_part, delimiter), fractional_part].compact
end

.to_str(number, precision) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Formats the given number as a string.

Since:

  • 2.1.0



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# File 'lib/hanami/view/helpers/number_formatting_helper.rb', line 146

def self.to_str(number, precision)
  case number
  when Integer
    number.to_s
  else
    ::Kernel.format("%.#{precision}f", number)
  end
end