I am creating a User Defined Language in Notepad++. In the “Operators & Delimiters” tab, the section for Operators 2 says “separators required”. What does this mean?

I am creating a User Defined Language in Notepad++. In the “Operators & Delimiters” tab, the section for Operators 2 says “separators required”. What does this mean?

My memory is that if one removes a hard-drive running Windows and re-installs it in another computer it immediately craps-out, until one […]
Can anyone access your iPhone remotely and remove contacts or information you have on phone? I’ve searched my phone to no avail. […]
The Long Duration Power Limit is at 205 W for an Intel i5-12400. XMP I is enabled. How come this is possible? […]
I connect to a series of servers in the form of host.subdomain.domain.example.com different subdomains may or may not have hosts with the […]