27 lines
514 B
Ruby
27 lines
514 B
Ruby
#
|
|
# keys.rb
|
|
#
|
|
|
|
module Puppet::Parser::Functions
|
|
newfunction(:keys, :type => :rvalue, :doc => <<-EOS
|
|
Returns the keys of a hash as an array.
|
|
EOS
|
|
) do |arguments|
|
|
|
|
raise(Puppet::ParseError, "keys(): Wrong number of arguments " +
|
|
"given (#{arguments.size} for 1)") if arguments.size < 1
|
|
|
|
hash = arguments[0]
|
|
|
|
unless hash.is_a?(Hash)
|
|
raise(Puppet::ParseError, 'keys(): Requires hash to work with')
|
|
end
|
|
|
|
result = hash.keys
|
|
|
|
return result
|
|
end
|
|
end
|
|
|
|
# vim: set ts=2 sw=2 et :
|