Case-insensitive search support?

[vadz]

Thanks for the impressive library, but trying to migrate my existing code using Boost.Regex to it, I ran into the following problem: there currently doesn't seem to be any equivalent to std::regex::icase and PCRE-like (?i) is not supported neither (as indicated by the mention of lack of support for PCRE options in the README, of course).

Am I missing something, i.e. is there some other way to make the match case-insensitive, other than the obvious, but ugly, one of using [fF][oO][oO], or is this just not supported at all?

[hanickadot]

Currently it's not supported at all as case sensitivity especially in world of unicode is quite complicated subject.

[FergoTheGreat]

I'll happily take an ASCII only solution. Anything is better than nothing.

[hanickadot]

What about using std::views::transform(std::tolower) | ctre::match<"regex"> or something similar?