Regular expressions

As you can see from the picture, if the source has “O (OFF)”, the target also must have “O (OFF)” too. What regex can I use to detect when the target is wrong for the following case?
Not detected with default settings.

Thank you!


In this case, you do not need regex. The following powersearch should detect all cases:
Source term: "O (OFF)"
Target term: -"O (OFF)"
Search mode: Simple
PowerSearch: On (Ctrl+P if you run the search at the Search tab)

Thank you, Omartin!

However, there is another case:
Turn the dial to “I (ON)” position.

What I want to know is how to detect “Upper Case Mismatch of one letter” like A, B, C and so on.
Is there any regex for this case?

Thanks a lot!

Source term: "(<[A-Z]> \(ON\))=1"
Target Term: -@1
Case Sensitive checkbox: On
Search mode: Regular Expressions
PowerSearch: On.

Thank you so much, Omartin! It worked!! :ok_hand: