Atom's definition is invalid. > Should be : > > ATOM = [a-z][a-zA-Z0-9_]* > > ATOM = [a-z][a-zA-Z0-9_@]* -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://erlang.org/pipermail/erlang-questions/attachments/20191012/9a9f8a03/attachment.htm>