Action to create ARTISTSORT tag

[JJ_Johnson]

Create an ARTISTSORT tag by either:

[1] taking the ARTIST field and reversing first & last names, separated by a comma, as in [lastname], [firstname]. For this purpose I think we can assume that the lastname is the final word in the name. For example, Stevie Ray Vaughan -> Vaughan, Stevie Ray.

or

[2] taking the ARTIST and deleting any leading articles like "The", "Los", etc.

I think I just found the answer to #1 in the pinned post on Regular Expressions:

Regular Expressions

I think I can probably figure out #2 now.

Another question, though: Am I correct in the way I'm doing this?

I have a multi-step action that first copies (format) ARTIST to ARTISTSORT. It then does a regex replace on ARTISTSORT. Is that the right way to do this - in two steps?