Courtesy of Apple
async fn main() - int {，这一点在新收录的资料中也有详细论述
Editorial standards Show Comments。业内人士推荐新收录的资料作为进阶阅读
FontForge supports scriptable modification of features using commands GenerateFeatureFile() and MergeFeature() (briefly covered in The Terrible Secret of OpenType Glyph Substitution - Ansuz - mskala's home page). I was only aware of this after making the .ttx based implementation, but it could potentially have avoided messing with .ttx files.。关于这个话题，新收录的资料提供了深入分析