values.rb #1

#
# values.rb
#

module Puppet::Parser::Functions
  newfunction(:values, :type => :rvalue, :doc => <<-EOS
When given a hash this function will return the values of that hash.

*Examples:*

    $hash = {
      'a' => 1,
      'b' => 2,
      'c' => 3,
    }
    values($hash)

This example would return:

    [1,2,3]
    EOS
  ) do |arguments|

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

    hash = arguments[0]

    unless hash.is_a?(Hash)
      raise(Puppet::ParseError, 'values(): Requires hash to work with')
    end

    result = hash.values

    return result
  end
end

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