Puppet Function: abs

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

Overview

abs() ⇒ Any

Returns the absolute value of a number, for example -34.56 becomes 34.56. Takes a single integer and float value as an argument.

Returns:

  • (Any) 


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

newfunction(:abs, :type => :rvalue, :doc => <<-DOC
  Returns the absolute value of a number, for example -34.56 becomes
  34.56. Takes a single integer and float value as an argument.
  DOC
           ) do |arguments|

  raise(Puppet::ParseError, "abs(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?

  value = arguments[0]

  # Numbers in Puppet are often string-encoded which is troublesome ...
  if value.is_a?(String)
    if value =~ %r{^-?(?:\d+)(?:\.\d+){1}$}
      value = value.to_f
    elsif value =~ %r{^-?\d+$}
      value = value.to_i
    else
      raise(Puppet::ParseError, 'abs(): Requires float or integer to work with')
    end
  end

  # We have numeric value to handle ...
  result = value.abs

  return result
end