Bye bye, fast compilation times

[Dmitry Olshansky]

On Tuesday, 6 February 2018 at 13:51:01 UTC, Nathan S. wrote:
>> Just use the run-time version, it’s not that much slower. But 
>> then again static ipRegex = regex(...) will parse and build 
>> regex at CTFE.
>>
>> Maybe lazy init?
>
> FYI I've made a pull request that replaces uses of regexes in 
> std.net.isemail. It turns out they weren't being used for 
> anything indispensable. Import benchmark results were 
> encouraging.
>
> https://github.com/dlang/phobos/pull/6129

Then again if you may not need regex for IPv4 / IPv6.

In theory it should have been the goto case for ctRegex but not 
at the cost of such horrible compile times.