Is there a way to enter a LONG list of replacements?

[scampbll]

I'm trying to rename some files that contain two variable values - one for the person they relate to and a code for what the specific item is. The code is a ~30-character string of letters and numbers. I want to translate each code into human-readable text (different for each code, but the codes have consistent translations).

I know you can do OR replacements with |, but there are potentially ~150 of these codes that could show up so that's not going to work. Creating a file like rename-pairs would be doable, but I can't hard code the whole file name because the PERSON value changes for each file.

Is there an approach that would work for this? I could swear I've done something similar in the past, but I can't reproduce it now.

[scampbll]

Aha! I finally stumbled on this page, which rang a bell. That's what I did before, used multi-character translations. I can make a text file and paste them in as needed. Voila!