Puppet Function: convert_base

Defined in:
lib/puppet/parser/functions/convert_base.rb
Function type:
Ruby 3.x API

Overview

convert_base() ⇒ Any

Converts a given integer or base 10 string representing an integer to a specified base, as a string.

Usage:

$binary_repr = convert_base(5, 2)  # $binary_repr is now set to "101"
$hex_repr = convert_base("254", "16")  # $hex_repr is now set to "f

Returns:

  • (Any) 


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# File 'lib/puppet/parser/functions/convert_base.rb', line 5

newfunction(:convert_base, :type => :rvalue, :arity => 2, :doc => <<-'DOC') do |args|
  Converts a given integer or base 10 string representing an integer to a specified base, as a string.

  Usage:

    $binary_repr = convert_base(5, 2)  # $binary_repr is now set to "101"
    $hex_repr = convert_base("254", "16")  # $hex_repr is now set to "fe"

  DOC

  raise Puppet::ParseError, 'convert_base(): First argument must be either a string or an integer' unless args[0].is_a?(Integer) || args[0].is_a?(String)
  raise Puppet::ParseError, 'convert_base(): Second argument must be either a string or an integer' unless args[1].is_a?(Integer) || args[1].is_a?(String)

  if args[0].is_a?(String)
    raise Puppet::ParseError, 'convert_base(): First argument must be an integer or a string corresponding to an integer in base 10' unless args[0] =~ %r{^[0-9]+$}
  end

  if args[1].is_a?(String)
    raise Puppet::ParseError, 'convert_base(): First argument must be an integer or a string corresponding to an integer in base 10' unless args[1] =~ %r{^[0-9]+$}
  end

  number_to_convert = args[0]
  new_base = args[1]

  number_to_convert = number_to_convert.to_i
  new_base = new_base.to_i

  raise Puppet::ParseError, 'convert_base(): base must be at least 2 and must not be greater than 36' unless new_base >= 2 && new_base <= 36

  return number_to_convert.to_s(new_base)
end