I am trying to set up a new regular expression to extract from my file names. The files names are in the form:
I am trying to extract the first number within the brackets, the channel and then the number at the end.
I have the string below which I put together using https://regex101.com/r/IVhjys/1/. It looks to be fine on there but when I move to CP I get the error “incomplete or badly formatted repeat expression”
Would anyone be able to help with this as I know it should be quite simple but none of my attempts so far have worked!