fmt.frame:gsub("%%(%w+)", {...}) That's a very nice interpolation hack. I've updated the attachment with some changes: better formatting options, and a change to how locals are collected is the most of it, the latter change cleaned up a lot of indexing spaghetti, so that's good. Other tha...

Btw, the example has an error. love.errorhandling should be love.errorhandler. Fixed. I feel like the format parameters should be custom for the library though I agree, it came to mind at one point but the effort to get string interpolation working made me put it to the side. Getting formatting wor...

Catcher (tried to keep in line with LOVE library naming conventions :ultrahappy:) is a currently small library that primarily implements a replacement for love.errorhandler, since I find it a bit lacking (I think it's been neglected in general). The default function displays the error message and tr...