This package adds support to Sublime Text for OpenType feature files in the Adobe "AFDKO" format. To install it in Sublime Text, either:
Assuming you have Package Control installed, hit Command-Shift-P and type "Package Control: Add Repository". Then paste in the URL of this repository:
https://www.github.com/simoncozens/AFDKO-SublimeText
Then Command-Shift-P again and type "Package Control: Install package".
At the terminal:
cd ~/Library/Application\ Support/Sublime\ Text\ 3/Packages
git clone https://www.github.com/simoncozens/AFDKO-SublimeText