Regex to match specific strings without a given prefix
regex
Solution
You may need
(?<!prefix )word
(and maybe take care of the spaces).
`(?!)` is a negative lookahead but in your case you need a negative lookbehind (i.e. `(?<!)`).
Problem
I need to match all of its lines that contains a value and that don't have a given prefix. Example: I want all lines that contains `word` when it's not prefixed by `prefix` So: ``` foobar -> no match prefix word -> no match prefix word suffix -> no match word -> MATCH something word -> MATCH ``` What I've tried so far: ``` (?!prefix)word ``` Doesn't seem to do what I want