https://github.com/apple/swift-evolution/blob/main/proposals/0355-regex-syntax-run-time-construction.md

swift-evolution/0355-regex-syntax-run-time-construction.md at main ...

This maintains proposals for changes and user-visible enhancements to the Swift Programming Language. - swift-evolution/0355-regex-syntax-run-time-construction.md at main · apple/swift-evolution

6:56 PM

文法自体は別提案になってる、きちんと書き下されていてえらい