1 module Puppet::Parser::Functions
2 newfunction(:delete_undef_values, :type => :rvalue, :doc => <<-EOS
3 Returns a copy of input hash or array with all undefs deleted.
7 $hash = delete_undef_values({a=>'A', b=>'', c=>undef, d => false})
9 Would return: {a => 'A', b => '', d => false}
11 $array = delete_undef_values(['A','',undef,false])
13 Would return: ['A','',false]
18 raise(Puppet::ParseError,
19 "delete_undef_values(): Wrong number of arguments given " +
20 "(#{args.size})") if args.size < 1
22 unless args[0].is_a? Array or args[0].is_a? Hash
23 raise(Puppet::ParseError,
24 "delete_undef_values(): expected an array or hash, got #{args[0]} type #{args[0].class} ")
28 result.delete_if {|key, val| val.equal? :undef}
29 elsif result.is_a?(Array)