std.d.lexer requirements

[deadalnix]

Le 03/08/2012 05:41, Andrei Alexandrescu a écrit :
> On 8/2/12 11:08 PM, Jonathan M Davis wrote:
>> You're not going to get as fast a lexer if it's not written
>> specifically for D.
>> Writing a generic lexer is a different problem. It's also one that
>> needs to be
>> solved, but I think that it's a mistake to think that a generic lexer
>> is going
>> to be able to be as fast as one specifically optimized for D.
>
> Do you have any evidence to back that up? I mean you're just saying it.
>
> Andrei
>

I think it can be as fast if the lexer is compile time created. I'd also 
argue that it is better to have a D lexer ASAP, even if it isn't as 
configurable as it could be.

Better something now that something better later. We can make it better 
later anyway.