NSRegularExpression is backed by ICU’s uregex; there is no regex support in CF
however since ICU is a pretty involved C API it would not be un-reasonable to
create an accessor API to make certain behaviors easier to deal with in swift.
> On Jan 4, 2016, at 8:58 PM, Lukas Stabe via swift-corelibs-dev
> wrote:
>
> I have been thinking about trying to work on NSRegularExpression in
> corelibs-foundation, although I am not yet sure I’ll have time for it.
>
> If I were to attempt it, am I correct in assuming that it should be based on
> icus (u)regex.h? I have not found any Regex support in CoreFoundation.
>
> — Lukas
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