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by acln 4569 days ago

Balance (194)

  ^<.*>$|^<<.*>>$|^<<<.*>>>$

2 comments

Balance (286)

  ^(<(<(<(<(<(<<>>)*>)*>)*>)*>)*>)*$

If we had named captures:

  ^(((?<P><)|(?<-P>>))*(?(P)(?!)))$

Balance (288) with one bad match: ^(<(<(<(..)>)>)>)$

Balance (212)

[<>]{28}