first commit

Author: Владислав Прусаков

.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj
+xcuserdata/
+/.swiftpm

Package.resolved

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+// swift-tools-version:5.1
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "CodeSyntaxCSSGenerator",
+    products: [
+        // Products define the executables and libraries produced by a package, and make them visible to other packages.
+        .library(
+            name: "CodeSyntaxCSSGenerator",
+            targets: ["CodeSyntaxCSSGenerator"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        .package(url: "https://github.com/johnsundell/publish.git", from: "0.4.0"),
+        .package(url: "https://github.com/SpectralDragon/PublishColorUtils.git", from: "0.1.0"),
+        .package(url: "https://github.com/JohnSundell/SplashPublishPlugin.git", from: "0.1.0")
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
+        .target(
+            name: "CodeSyntaxCSSGenerator",
+            dependencies: ["Publish", "PublishColorUtils", "SplashPublishPlugin"]),
+        .testTarget(
+            name: "CodeSyntaxCSSGeneratorTests",
+            dependencies: ["CodeSyntaxCSSGenerator"]),
+    ]
+)

Package.swift

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+# CodeSyntaxCSSGenerator
+
+A [Publish](https://github.com/johnsundell/publish) plugin that generates a syntax code css styles for you [Splash Plugin](https://github.com/johnsundell/splashpublishplugin) from Xcode Color Theme.
+
+## Install
+
+To install it into your [Publish](https://github.com/johnsundell/publish) package, add it as a dependency within your `Package.swift` manifest:
+```swift
+let package = Package(
+    ...
+    dependencies: [
+        ...
+        .package(url: "https://github.com/SpectralDragon/CodeSyntaxCSSGenerator.git", from: "0.1.0")
+    ],
+    targets: [
+        .target(
+            ...
+            dependencies: [
+                ...
+                "CodeSyntaxCSSGenerator"
+            ]
+        )
+    ]
+    ...
+)
+```
+
+## Usage
+
+Move `dvtcolortheme` or `xccolortheme` file to Resource dirictory and intall the plugin in any place in build step.
+
+```swift
+
+// My xcode theme `Light.dvtcolortheme`
+
+import CodeSyntaxCSSGenerator
+
+Site().publish(using: [
+    .installPlugin(
+        .generateCodeCSS(withClassPrefix: "pre code .s-",
+                         theme: .xcode("Light.dvtcolortheme"))
+    ),
+])
+```
+
+after that, the plugin will generate `codesyntax.css` file
+
+```css 
+pre code .s-preprocessing {
+    color: #63381FFF
+}
+
+pre code .s-comment {
+    color: #007400FF
+}
+
+pre code .s-number {
+    color: #1C00CEFF
+}
+
+pre code .s-call {
+    color: #25464AFF
+}
+
+pre code .s-property {
+    color: #3E6D74FF
+}
+
+pre code .s-keyword {
+    color: #A90D91FF
+}
+
+pre code .s-dotAccess {
+    color: #25464AFF
+}
+
+pre code .s-type {
+    color: #3E6D74FF
+}
+
+pre code .s-string {
+    color: #C41A15FF
+}
+```
+
+Also plugin can generate css to dark scheme, just use `CodeTheme.dynamic(light: CodeTheme, dark: CodeTheme)` case. The plugin add `@media(prefers-color-scheme: dark)` with passed code theme.
+
+
+# Features
+
+[ ] intellij theme
+[ ] VSCode
+
+Thank you and enjoy 💯

README.md

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+import Foundation
+import Publish
+import Splash
+import Files
+import PublishColorUtils
+
+public extension Plugin {
+    
+    static func generateCodeCSS(
+        withClassPrefix prefix: String = "",
+        resourcePath: Path = "Resources",
+        codeFileName: String = "codesyntax.css",
+        theme: CodeTheme
+    ) -> Self {
+        Plugin(name: "CodeSyntaxCSSGenerator", installer: { context in
+            
+            if let folder = try? context.folder(at: resourcePath) {
+                
+                let colors = try theme.colors(resourceFolder: folder)
+                
+                var content = """
+                /* THIS FILE WAS AUTO GENERATED. DO NOT CHANGE IT MANUAL */
+                /* Generated by `CodeSyntaxCSSGeneratorPlugin` https://github.com/SpectralDragon/CodeSyntaxCSSGeneratorPlugin */\n\n
+                """
+                
+                switch colors {
+                case .single(let value):
+                    let style = Self.cssStyle(prefix, colors: value)
+                    
+                    content.append(style)
+                case .dynamic(let light, let dark):
+                    let style = Self.cssStyle(prefix, colors: light)
+                    
+                    content.append(style)
+                    
+                    let darkStyle = Self.cssStyle(prefix, colors: dark)
+                    
+                    content.append("\n\n@media(prefers-color-scheme: dark) {\n")
+                    
+                    content.append("\t\(darkStyle.replacingOccurrences(of: "\n", with: "\n\t"))\n\n")
+                    
+                    content.append("}")
+                }
+                
+                if folder.containsFile(named: codeFileName) {
+                    try folder.file(at: codeFileName).delete()
+                }
+                
+                let codeFile = try folder.createFile(at: codeFileName)
+                
+                try codeFile.write(content)
+            }
+        })
+    }
+    
+    /// Generate css style using colors
+    private static func cssStyle(_ prefix: String, colors: [TokenType: PublishColorUtils.Color]) -> String {
+        
+        var style = "\n"
+        
+        for (token, color) in colors {
+            style.append(
+            """
+            \(prefix)\(token.string) {
+            \tcolor: \(color.hexWithAlpha)
+            }\n\n
+            """
+            )
+        }
+        
+        return style
+    }
+}
+

Sources/CodeSyntaxCSSGenerator/CodeSyntaxCSSGenerator.swift

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+import Foundation
+import PublishColorUtils
+import Splash
+
+extension CodeTheme {
+    static func colorsFromXcodeScheme(_ scheme: [String: Any]) -> [TokenType: PublishColorUtils.Color] {
+        let syntaxColors = scheme["DVTSourceTextSyntaxColors"] as! [String: String]
+        
+        var colors = [TokenType: PublishColorUtils.Color]()
+        
+        for token in TokenType.allCases {
+            let strings = syntaxColors[token.xcodeSchemeKey]?.split(separator: " ").map { String($0) } ?? []
+            guard strings.count == 4 else { continue }
+            let red = Float(strings[0])!
+            let green = Float(strings[1])!
+            let blue = Float(strings[2])!
+            let alpha = Float(strings[3])!
+            let color = Color(red: red, green: green, blue: blue, alpha: alpha)
+            colors[token] = color
+        }
+        
+        return colors
+    }
+}
+
+fileprivate extension TokenType {
+    var xcodeSchemeKey: String {
+        switch self {
+        case .call, .dotAccess: return "xcode.syntax.identifier.function"
+        case .comment: return "xcode.syntax.comment"
+        case .keyword: return "xcode.syntax.keyword"
+        case .number: return "xcode.syntax.number"
+        case .preprocessing: return "xcode.syntax.preprocessor"
+        case .property: return "xcode.syntax.identifier.variable"
+        case .string: return "xcode.syntax.string"
+        case .type: return "xcode.syntax.identifier.type"
+        case .custom(_): return "xcode.syntax.plain"
+        }
+    }
+}