When to use (?-si)?

Knowledge Base

Hello,

in another post I found the expression “(?-si)(location='WINDOWS[0]).*?(?=[option)”.

I tried to find out what (?-si) means because searching and replacing in this example also works without (?-si), but didn’t find anything.
Can someone tell me exactly what (?-si) does?

Thanks for your help

Ekopalypse

@Knowledge-Base

these are the so called modifiers.
the s handles if the dot wildcard can match end of line chars as well
the i handles the case sensitivity
a minus in from of one modifier disables the default behavior of that modifier.
You can read more about that here, (which at the moment is down) or here.

Knowledge Base

Hi Ekopalypse,

thanks a lot.

PeterJones

@Ekopalypse said:

read more about that here, (which at the moment is down)

Down for good, actually. The githubio link was always meant as temporary. https://npp-user-manual.org/docs/searching/#regular-expressions is the new long-term home, linking directly to the regex docs.