On Wed, Jan 27, 2016 at 07:54:21PM +0000, Era Scarecrow via Digitalmars-d wrote: > On Wednesday, 27 January 2016 at 19:05:01 UTC, H. S. Teoh wrote: > >An alternative would be to use `if (_ctfe)` branches in the code to > >switch to a different matching engine when in CTFE, and leaving the > >runtime code untouched. > > Hmmm... As I recall there's 2 major engines that run Regex (DFA & > NFA). If you don't need the more complex engine (which has > forward/back referencing, named capturing, etc) then maybe the > simpler engine would work. > > But it would seem easier/simpler if the compiler just hooks in the > Regex that's compiled into it instead and passes the data back and > forth. It does mean you can't test Regex changes during the CTFE > stage (assuming your actively changing/building it) but it wouldn't > have the performance hit either.
Currently, AFAIK, (d)dmd does not use anything from Phobos. I'm not sure if this is a temporary situation, or there's a strong reason for it. T -- Those who don't understand D are condemned to reinvent it, poorly. -- Daniel N
