A syntax definition for Sublime Text 2 & 3 that will parse Lua scripts embedded within the XML files that are part of World of Warcraft interface modifications.
It is tested with both Sublime Text 2 & 3.
You can easily install this plugin using Sublime Package Control.
You can also just download and copy the files from this repo into your Sublime Text package directory (to find this location, open Sublime Text and choose "Browse Packages..." from the Preferences menu. The name of the folder that you put the files in does not matter.