A syntax theme for Sublime Text to make coding with Nearley fun.
Install (on OS X and Sublime Text 3):
$ curl "https://raw.githubusercontent.com/liam4/nearley-syntax-sublime/master/nearley.tmLanguage" > ~/Library/Application\ Support/Sublime\ Text\ 3/Packages/User/nearley.tmLanguage
Install (on OS X and Sublime Text 2):
$ curl "https://raw.githubusercontent.com/liam4/nearley-syntax-sublime/master/nearley.tmLanguage" > ~/Library/Application\ Support/Sublime\ Text\ 2/Packages/User/nearley.tmLanguage
All those short command line scripts do is download the theme and add them to your packages folder for your Sublime installation, so if you aren't using OS X (a Mac) you can just install them manually, which isn't that much harder than using the program.
The YAML-tmLanguage source code is also available. (Word of warning - it's really short!)