Swift syntax highlighting model based on TextKit/NSTextStorage.

Compatible with macOS and iOS (Cocoa, UIKit and SwiftUI).

Syntax Model:

• Lexer (protocol) converts coding language keywords/regex into Syntax Patterns (struct) - a combination of patterns matching substring/regex, syntax type, and style in form of [NSAttributedString.Key], which will be used to generate matching tokens ( NSAttributedString.Key + NSRange ) for NSTextStorage to process
• Color, font and line spacing are customizable via Syntax Theme
• Supports Swift syntax (SwiftLexer). Can be extended for other programming languages

Syntax Views:

• SyntaxViewController for Cocoa and UIKit
• SyntaxUIViewRepresentable for SwiftUI (iOS)
• SyntaxNSViewRepresentable for SwiftUI (macOS)

Examples:

• Document based text editor for macOS / iOS across Cocoa, UIKit and SwiftUI.

Credits:

• twostraws - Sourceful