negative lookbefore for a blackslash in ruby 1.9
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22-09-2019 - |
Question
I want to match every '[' or ']' that's not preceded by a backslash in ruby 1.9 I tried:
/?<!\134[\[\]]/
and
/?<!\\\\[\[\]]/
but I get a 'target of repeat operator not specified'
Solution
You will need to wrap the negative lookbehind in parenthesis.
(?<!\\)[\[\]]
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