a regex 1

w5000 · Feb 1, 2017

Hello,
I want a regex (with OR as below) also matching "md" lines in which 3rd column is not a string "active". Is it possible?

https://regex101.com/r/LxD8t2/2

feherke · Feb 1, 2017

Hi

Sadly you can not say "not the string" like that. For negation the best option is negative look-ahead assertion : [tt](?!active)[/tt]. But that being a zero-width assertion, you will still need to match whatever is there with something generic, like [tt].+[/tt] or [tt].+?[/tt]. So the 3^rd part of you expression would look like something this :

Code:

md[[:digit:]]+[[:space:]]+:[[:space:]]+(?!active).+?[[:space:]]+raid[[:digit:]]+

But in practice I would probably use something different.

Feherke.
feherke.ga

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a regex 1

w5000

Technical User

feherke

Programmer

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