Benjamin Peterson wrote:
Why do you even have to add a new token? You can just put the literal '?' in the grammar.
I don't see how that can be sufficient. All the other tokens have entries in the three places I mentioned, and there's no way that pgen can generate those automatically just from seeing a '?' in the grammar. I just tried an experiment -- I changed the grammar to accept '?' as an alternative to '+', and tried to use the parser module to parse "1?2". It reported a SyntaxError. -- Greg _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
