Re: Pre-RFC: adding a Regex\CompiledRegex class for compiling regular expressions

On 2026-09-26 22:51, Tim Düsterhus wrote:

1. ... possible future additions. Such as methods for constructing a regex algebraically (e.g. an alternatives method taking (objects representing) "a", "b", and "c", and returning "a|b|c").

The thing is that all four of those Regex objects will have flags set/unset and it's not immediately clear how the alternation's flags relate to the alternatives' flags. You can already set/unset flags on portions of a regular expression e.g., "/((?i)caseless)|caseful/", so the settings could be retained for the alternatives, but that doesn't say what the settings would be for their combination.