Question regarding subpattern matching support

[kevin-kortum-trustedshops]

Regarding the limitations of this project, I came across the expression \k<PATTERN> e.g. /(?<first>a+) and again (\k<first>)/ which I think is not supported. However, I was not able to deduct the reason for that from the readme. Is that because of unsupported backreferences?

[uhop]

Yes, \k is a backreference: it refers back to a previous match. Read all about it in the official document: https://github.com/google/re2/wiki/Syntax