Possible bad literal extraction #93
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bug
A bug.
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It's a pretty sweet bug. This is indeed a bug in |
amsharma91
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If we do, this results in extracting `foofoofoo` from `(\wfoo){3}`,
which is wrong. This does prevent us from extracting `foofoofoo` from
`foo{3}`, which is unfortunate, but we miss plenty of other stuff too.
Literal extracting needs a good rethink (all the way down into the regex
engine).
Fixes BurntSushi#93
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I was trying to search for IP addresses and ran into an odd problem. I tried the expression
'(\d{1,3}\.){3}\d{1,3}'and found no matches. I changed from a fixed repetition of the subgroup to one or more -'(\d{1,3}\.)+\d{1,3}'- and got matches. Using the--debugflag I see that the first case looks for the wrong literal:The second case only looks for a single
.as expected.Is this a bug in the regex parsing or am I doing something wrong?
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