Re: Use of function "regex_replace"

Thanks Robin for your answers.

I see that, theorically, I can capture a part of the regular expression with parenthesis to use it as the replacement string:

As I see in the documentation, the <replacement string> is the 3rd one but I still can't find how to represent it to work, what to put at the left of the "2":

• regex_replace($Word_In, '^([A-Z]+) ([A-Z]+) ([A-Z]+)$', '\2', null);

I've tried some symbols ("/2", "\2", "$2", ...) and it doesn't work. I think the documentation doesn't mention it...

Any idea to represent it?

Thanks in advance and best regards