I'm trying to match lines that doesn't end with either . or ! and doesn't end with either ." or !" so it should match both
say "bye"say "byebut shouldn't match:
say "bye.say "bye!say "bye."say "bye!"I tried using positive and negative lookahead, trying to use them as AND as suggested in Regex AND operator, but I can't make it work, nor I'm sure it's feasible with lookaheads.
Just use a negative lookbehind.
This matches exactly what you asked for: ^.*+(?<![.!]"?)$
^ - beginning of line
.*+ - any amount of characters, not giving up for backtracking
(?<! + ) - not preceded by
[.!] - dot or exclamation mark
"? - optional double-quote
$ - end of line