Re^2: interpolating code in regex brace quantifier

This does it, thank you! And yes, I misspoke: it wasn't quite "interpolation" I was after..

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Re^3: interpolating code in regex brace quantifier by ikegami (Patriarch) on Mar 09, 2019 at 22:18 UTC
Note that you can also achieve the desired result through recursion `(a(?1)?x)` [download]	[reply] [d/l]