On 9/11/2013 3:09 PM, Michel Fortin wrote:
On 2013-09-11 18:49:44 +0000, Walter Bright <newshou...@digitalmars.com> said:
6. No clue how lookahead works with this. Parsing D requires arbitrary
lookahead.
Since this is a forward range, you can save() it at one location and continue
parsing, and then restart parsing from the savepoint.
https://github.com/Hackerpilot/phobos/blob/master/std/d/lexer.d#L2324
This also means that the underlying range used as input to the lexer must be a
forward range that you can save() too.
That's correct, but that implies re-lexing the tokens, which has negative
performance implications.
