Davidebyzero (David Ellsworth)
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- Registered on: 04/04/2021
- Last sign in: 04/04/2021
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Activity
04/04/2021
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08:08 AM Ruby Bug #17774 (Open): Quantified empty group causes regex to fail
- The regex `^((x*)(?=\2$))*x$` matches powers of 2 in unary, expressed as strings of `x` characters whose length is the number.
Adding an empty group `()` in the middle of it should have no effect on its operation, and indeed it does n...