The AND_NOT and OR_NOT connectors

UPDATE:

Upon further testing and asking around, it looks like my initial reading of the AND_NOT logical connector was based on an older version of the documentation. It turns out that the AND_NOT logical connector is broken and is not recognized by the VGR parser. It seems that the OR_NOT operator works, but I still need to do some testing to confirm it. I've made some notations to this article where needed.

Original Post

When reading the VGR documentation and putting together my VGR Cheat Sheet, I found that, in addition to the familiar logical connectors {AND, OR, THEN}, there are also the AND_NOT and OR_NOT connectors. If you're not sure what I'm talking about when I say logical connectors, this is how the VGR Handbook defines them:

Connector: A logical connector for linking multiline VGR rules. This only applies to IF statements with multiple conditions, and IF statements where there are multiple commands in the THEN clause.

That's to say, that seventh piece of your VGR code that:

• Connects multiple IF statements: IF ... AND ... AND ... THEN
• Connects multiple lines after the IF: IF ... THEN ... AND ...

If you look at the Logical Connectors section of my VGR Cheat Sheet, you'll see four entries: AND, AND_NOT, OR, and OR_NOT. Just as you might expect, the AND returns true if both IF statements evaluate to true and the OR returns true if either IF statements evaluate to true.

So what about the AND_NOT and OR_NOT logical connectors? They are a little more specific. The AND_NOT returns true if the first IF evaluates to true and the second IF evaluates to false. Similarly, the OR_NOT evaluates to true if the first IF evaluates to true or the second IF evaluates to false