How to negate specific word in regex?
Posted By: Anonymous
I know that I can negate group of chars as in [^bar] but I need a regular expression where negation applies to the specific word – so in my example how do I negate an actual bar, and not “any chars in bar”?
Solution
A great way to do this is to use negative lookahead:
^(?!.*bar).*$
The negative lookahead construct is the pair of parentheses, with the opening parenthesis followed by a question mark and an exclamation point. Inside the lookahead [is any regex pattern].
Answered By: Anonymous
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