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A comment on Is there a regular expression to detect a valid regular expression?. Parent comment

Re:Is there a regular expression to detect a valid regular e... by saltcured on Sunday September 08, 2019 @04:47PM (#20913315)
Grouping is very useful, but I think you can get pretty far in practical patterns with a limit of k-nesting for k=0..3 or so. That pattern language would still be regular.
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