How to remove every line that doesn't contain special/specific characters in Notepad++

Breyan 0
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I would like the remove every line that doesn't contain the next characters:

! ? # * $ [ ] { } - _ ( )

How should I do that, please?

notepad notepad++ text
1 Answers
  • Find what: ^[^!?#*$\[\]{}\-_()]+\R?
  • Replace with: LEAVE EMPTY

[^!?#*$\[\]{}\-_()] is a negative character class that match a character that is not !, ?, #, *, $, [, ], {, }, -, _, ( or )

usertRy10
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