Question: how to archieve a capturing group with one alternative being `assert position at start/end`?

[carafelix]

I haven't found a way to archive the following regex: /(\s|^)etc/. Skill issue? Thanks in advance

A similar result but for a non-capturing group it's doable with:

SuperExpressive()
    .anyOf
    .whitespaceChar
    .startOfInput
    .end()
    .toRegex()
// /(?:^|[\s])/
    ```