[Python-Dev] Python keywords (was Lockstep iteration - eureka !)

[Guido van Rossum]

> The parser actually recognizes keywords atm.
> 
> We could change that so that each keyword is a token.
> Then you would have something like:
> 
> keyword_allowed_name: KEY1 | KEY2 | KEY3 | ... | KEYN | NAME
> and then tweak func_def like so:
> func_def:  DEF keyword_allowed_name parameters ':' suite
> 
> I haven't pondered whether or not this would cause the DFA to fall into a
> degenerate case or not.

This would be a good and simple approach.

> Wondering where the metagrammer source file went to,

It may not have existed; I may have handcrafted the metagrammar.c
file.

I believe the metagrammar was something like this:

MSTART: RULE*
RULE: NAME ':' RHS
RHS: ITEM ('|' ITEM)*
ITEM: (ATOM ['*' | '?'])+
ATOM: NAME | STRING | '(' RHS ')' | '[' RHS ']'

--Guido van Rossum (home page: http://www.pythonlabs.com/~guido/)