The v2 framework using the iOS TextKit 1 to render the text with attributes. For example, the inline emoji attachment and user mention and URL link highlight.
The MetaLabel is a subclass of UILabel which overrides the drawText(in:) method to using custom TextKit stack to draw the text. The label supports display meta content and auto sizing for multiple-lines.
The MetaText is a class grouping the TextKit stack and contains a UITextView constructed base on the stack. This text view allows selection or editing. The component supports self-sizing and appearance customise.
The parser working for two meta source: Twitter and Mastodon. And anyother meta source could be added by adopt the protocol. Also, folk to support any other meta source is convenient.
MIT