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The first expression has nested quantifiers, so Dlint will detect it, but since there's nothing after the nested quantifier to backtrack the match no catastrophic backtracking will occur. Similarly:
In order for catastrophic backtracking to occur there must be a character that forces backtracking to occur. E.g.
The first expression has nested quantifiers, so Dlint will detect it, but since there's nothing after the nested quantifier to backtrack the match no catastrophic backtracking will occur. Similarly:
We should avoid detecting the first expression because catastrophic backtracking cannot occur.
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