Vim
KAREL syntax highlighting for vim
I just open-sourced my KAREL syntax highlighting plugin for vim.FANUC TP Syntax Highlighting for Vim
Vim is my favorite text editor. It may take an hour or two to get over the initial learning curve (and probably years to master it), but it’s worth it. The ability to cruise through your code and change it quickly without ever touching a mouse saves a ton of time, and there are plenty of good resources for learning it. You can grab my syntax highlighting file on GitHub. Pull requests appreciated.