You are asserting that any time you interpolate a compiled re into another, it just stringifies the first anyway, and re-compiles the whole thing?

I had always assumed that it copies the compiled bits and does not need to re-process it. I formed that opinion in the early days of the existence of qr, so that was a long time ago now.

In reply to Re^6: Composing regex's dynamically by John M. Dlugosz
in thread Composing regex's dynamically by John M. Dlugosz

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