[Issue 17238] r.lookaround!(a, b) returns a range derived from r that allows a elements of lookahead and b elements of lookback

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17238

Iain Buclaw <ibuclaw at gdcproject.org> changed:

           What    |Removed                     |Added
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           Priority|P1                          |P4

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