Am Thu, 02 Aug 2012 14:26:58 +0200 schrieb "Adam D. Ruppe" <destructiona...@gmail.com>:
> On Thursday, 2 August 2012 at 11:47:20 UTC, deadalnix wrote: > > lexer really isn't the performance bottleneck of dmd (or any > > compiler of a non trivial language). > > What if we're just using this lexer in something like a > syntax highlighting text editor? I'd be annoyed if it > stopped typing for a little bit cuz of processing. My pet peeve for editors is how to make the lexer work on only what I just edited. It is really not trivial, but eased for example by editors that insert closing } automatically, so the scopes don't mess up. A missing curly bracket results in the parser reinterpreting the whole file. The same goes for string terminators: If I type `` at the top of std.datetime in Mono-D right after "module std.datetime;", I have a 12 (!) seconds wait, till the IDE becomes responsive again. But if I use ' or ", then the editor inserts the second terminator and is done with reparsing in 1-2 seconds. Can we really have a good lexer that is equally well suited for compilers as for editors ? -- Marco
