Le 25 janv. 2011 à 04:47, Joel E. Denny a écrit : > Also, as you probably recall, the reason scan-gram.l has to be so messy in > order to support omitting semicolons is because Bison-generated parsers > support only one token of lookahead. However, after 2.5, I'd like to > propose a mechanism that enables a user to cleanly extend lookahead at > particular points in a grammar. About a year ago, I implemented that > mechanism offline and successfully used it to clean up this area of the > grammar without changing the functionality. So, whenever we return to > this issue, if we find that there's no other nice way to clean up this > code without losing important backward compatibility, we'll still have a > decent way out.
That sounds like a very reasonable plan!
