在Cocoa中实现源代码语法高亮的最佳方法是什么？

import Cocoa

class CodeTextView: NSTextView {
    override func didChangeText() {
        super.didChangeText()
        highlightSyntax()
    }
    
    private func highlightSyntax() {
        let string = self.string
        let range = NSRange(location: 0, length: string.utf16.count)
        let attributedString = NSMutableAttributedString(string: string)
        
        // 使用正则表达式匹配关键字，并为其添加属性
        let keywordPattern = "\\b(if|else|for|while)\\b"
        let keywordRegex = try! NSRegularExpression(pattern: keywordPattern)
        let keywordAttributes: [NSAttributedString.Key: Any] = [.foregroundColor: NSColor.blue]
        keywordRegex.enumerateMatches(in: string, options: [], range: range) { (match, flags, stop) in
            guard let match = match else { return }
            attributedString.addAttributes(keywordAttributes, range: match.range)
        }
        
        // 更新文本视图的属性字符串
        self.textStorage?.setAttributedString(attributedString)
    }
}