https://developer.apple.com/library/content/samplecode/TextEdit/Introduction/Intro.html
https://developer.apple.com/library/content/samplecode/CustomSave/Introduction/Intro.html
自定义UTI 注册你的APP所支持的文件类型
Mac OSX 给现有的应用追加基于文档的功能
https://developer.apple.com/library/content/samplecode/PackagedDocument/
Mac开发—NSDocument
https://github.com/mstarke/MacPass
https://developer.apple.com/documentation/appkit/nsdocument
https://stackoverflow.com/questions/16390319/saving-document-extensions-and-preferences-info-plist
COCOA学习笔记-1 创建一个类似于XCODE的启动页面
高亮
https://github.com/raspu/Highlightr
https://github.com/cppforlife/BetterConsole