On 8/1/2012 9:06 PM, Jonathan M Davis wrote:
On Wednesday, August 01, 2012 21:00:53 Walter Bright wrote:
On 8/1/2012 7:04 PM, deadalnix wrote:
Le 02/08/2012 02:10, Walter Bright a écrit :
6. A single "Lexer" instance should be able to serially accept input
ranges, sharing and updating one identifier table
I see the lexer as a function that take an range of char as input and give
back a range of token. Does it make sense to make an instance of a lexer
?
Yes, as the lexer will have some state and some configuration parameters.
Couldn't that just be part of the range type? A separate lexer type shouldn't
be necessary.
No, because the user may want to serially present ranges to the same lexer type.
Why do that, you might say? That's how dmd works - it means the identifier table
will be the same for all source files.
