It depends on the data -- if the data is incorrectly formatted (a missing ' for instance), they may not do the same thing. And '.+?'
has the tendency to be slower than '[^']+'
. Usually, the more restrictive a pattern is, the faster: there's less opportunity to backtrack. There's much more commitment in '[^']+'
then there is in '.+?'
: the former will always match two quotes in succession, and whatever is in between, regardless how the rest of the pattern looks like, but that's not the case with '.+?'
; there's nothing stopping the .+?
part to match quotes.
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