RegEx/BalancedParenthesis.regex.txt
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# Matches content in parenthesis, as long as it is balanced
\( # An open parenthesis (?> # Followed by... [^\(\)]+| # any number of non-parenthesis character OR \((?<Depth>)| # an open parenthesis (in which case increment depth) OR \)(?<-Depth>) # a closed parenthesis (in which case decrement depth) )*(?(Depth)(?!)) # until depth is 0. \) # followed by a closing parenthesis |