But does this do backreferences? I see it matches the same pattern, but that's not the same as a backreference.
But thanks, that makes me think about the problem differently.
Edited to add:
I'm considering using named capture groups, where there's a need to have a well-defined return value. Which is something PCRE has, and some people (!) can't live without, apparently.
Quantum Mechanics: The dreams stuff is made of
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