in reply to numerically named varsin thread search, replace and backrefrences
Contains the subpattern from the corresponding set
of parentheses in the last pattern matched, not
counting patterns matched in nested blocks that have
been exited already. (Mnemonic: like \digits.)
These variables are all read-only.
1. Keep it simple
2. Just remember to pull out 3 in the morning
3. A good puzzle will wake me up
Many. I like to torture myself
0. Socks just get in the way
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