Re:Golang – encoding/csv: Reading is slow
by dsymonds on Saturday September 03, 2016 @05:02PM
(#12421183)
The standard regexp package, unlike PCRE, is actually a proper regular expression parser/matcher. Anything doing backtracking is at risk of exponential blowup and isn't safe.
https://swtch.com/~rsc/regexp/regexp1.html