Adding OpenType Features in FontLab VI, Part 2: Local Language Feature

Last time I wrote an introduction to adding OpenType features to Protest. I included links to the resources I used most or found helpful. Reading those materials is foundational, and highly recommended. There are two types of features: substitutional and positional. The substitution features come first. This post covers local language rules in the locl substitution feature. Of the substitution features, here’s where I am [...]