mtj0928/syntaxink

Usage

You can get AttributedString from String easily.

let sourceCode = """
let person = Person(name: "matsuji")
try! await person.say("Hi, SyntaxInk can highlight Swift code!")
"""

#Preview {
    let syntaxHighlighter = SwiftSyntaxHighlighter(theme: .default)
    let attributedString = syntaxHighlighter.highlight(sourceCode)
    Text(attributedString)
        .padding()
        .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
        .background(Color.xcodeBackgroundDefaultColor)
}

This is the results of the preview.

<img width="734" alt="screenshot" src="https://github.com/user-attachments/assets/d51f8e9c-acff-4e44-887e-dcf997beeae8" />

You can specify dafaultDark as a theme and xcodeBackgroundDefaultDarkColor as a background.

#Preview {
    let syntaxHighlighter = SwiftSyntaxHighlighter(theme: .defaultDark) // Change the theme
    // ...
    Text(attributedString)
        // ...
        .background(Color.xcodeBackgroundDefaultDarkColor) // Change the background
}

<img width="734" alt="screenshot_dark" src="https://github.com/user-attachments/assets/a1c015bd-fc1f-49e9-899d-d2bcf27c5dc9" />

Theme

SyntaxInk supports custom theme feature, and you can control the color and font.

Swift

Please build SyntaxStyle in a closure of SwiftTheme. The kind corresponds to Xcode's theme kind.

let theme = SwiftTheme { kind in
    var base = SyntaxStyle(
        font: .system(size: 16, weight: .medium, design: .monospaced),
        color: SyntaxColor(red: 255, green: 255, blue: 255)
    )
    switch kind {
    case .keywords:
        style.font.weight = .bold
    default: break
    }
    return style
}
let syntaxHighlighter = SwiftSyntaxHighlighter(theme: theme)

Install

let package = Package(
    // ...
    dependencies: [
        .package(url: "https://github.com/mtj0928/SyntaxInk.git", from: "0.0.1"),
    ],
    targets: [
        .target(name: "YOU_TARGET", dependencies: [
            .product(name: "SwiftSyntaxInk", package: "SyntaxInk"),
            .product(name: "SyntaxInk", package: "SyntaxInk")
        ])
    ]
)

Support Environment

• Swift 6.0+
• macOS 12+, iOS 15+, tvOS 15+, watchOS 8+, visionOS 1+

Package Metadata

Repository: mtj0928/syntaxink

Default branch: main

README: README.md