AppleScript and Vimscript for running Ruby tests being edited in MacVim in either Terminal.app or iTerm.app. Works with Rspec, Cucumber, and Test::Unit tests.
I just started working on a new rev of some Arduino code originally written by someone else, consisting of half a dozen PDE files plus two contributed libraries.
Vim provides several features helpful for working with character encodings; both legacy encodings, such as Latin-1, and modern Unicode encodings, such as UTF-8.