I tried using happybobjr's variable scanner program but quickly realized that with an average of around 20 subprograms for each of my Axe projects, scanning each program individually would take a while, so I decided to make my own scanner that searches for and loops through all subprograms as well.

It correctly ignores variables in comments, labels, strings, pointer names, and other data, and whenever it finds a prgm token, it adds it to the list of programs to scan. When it's done scanning all the programs in the list, it outputs a little diagram with all the variables in it, highlighting the ones you've used.

Only single-letter variables (or theta) are supported because I'm still on Axe 0.5.3.

EDIT: Download is down here.

Apparently I didn't actually upload the things I meant to upload... Here they are: screenshot, source, and program.

The screenshot shows how it parses 19 programs at once. If you were to parse just a single program without any subprograms, it would be almost instantaneous.