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#
# 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 :
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