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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 saagarjha on Sunday September 08, 2019 @11:44AM (#20911196)
It keeps track of state that a regular expression cannot?
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Re:Is there a regular expression to detect a valid regular e... by unlinkr on Sunday September 08, 2019 @01:16PM (#20911833)
You don't need to keep track of state to match tokens like XHTML start or end tags.
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