Puppet Function: size

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

Overview

size() ⇒ Any

Returns the number of elements in a string, an array or a hash

Returns:

  • (Any) 


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# File 'puppet/modules/stdlib/lib/puppet/parser/functions/size.rb', line 6

newfunction(:size, :type => :rvalue, :doc => <<-EOS
Returns the number of elements in a string, an array or a hash
  EOS
) do |arguments|

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

  item = arguments[0]

  if item.is_a?(String)

    begin
      #
      # Check whether your item is a numeric value or not ...
      # This will take care about positive and/or negative numbers
      # for both integer and floating-point values ...
      #
      # Please note that Puppet has no notion of hexadecimal
      # nor octal numbers for its DSL at this point in time ...
      #
      Float(item)

      raise(Puppet::ParseError, 'size(): Requires either ' +
        'string, array or hash to work with')

    rescue ArgumentError
      result = item.size
    end

  elsif item.is_a?(Array) || item.is_a?(Hash)
    result = item.size
  else
    raise(Puppet::ParseError, 'size(): Unknown type given')
  end

  return result
end