Let's stop parser Hell

[Roman D. Boiko]

On Sunday, 8 July 2012 at 20:06:07 UTC, Jonathan M Davis wrote:
> most of the focus right now from people interested in parsing 
> seems to be on pegged and parser generators (which are very 
> cool and in some ways much more interesting, but I seriously 
> question that that's the performant way to go if you're looking 
> to parse D specifically).

Can you provide a *specific* example of performance optimization 
which a custom D compiler would have, but parser generator would 
be unlikely to catch up.