MediaWiki:Common.js

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document.querySelectorAll("pre").forEach(pre => {
    pre.classList.add("csharp"); // Add the 'csharp' class for targeting

    // Get the raw code content
    let code = pre.textContent;

    // Highlight single-line comments (//)
    code = code.replace(/(\/\/.*?$)/gm, '<span class="csharp-comment">$1</span>');

    // Highlight multi-line comments (/* */)
    code = code.replace(/(\/\*[\s\S]*?\*\/)/g, '<span class="csharp-comment">$1</span>');

    // Highlight keywords
    const keywords = [
        "abstract", "as", "base", "bool", "break", "byte", "case", "catch", "char", "checked",
        "class", "const", "continue", "decimal", "default", "delegate", "do", "double", "else",
        "enum", "event", "explicit", "extern", "false", "finally", "fixed", "float", "for",
        "foreach", "goto", "if", "implicit", "in", "int", "interface", "internal", "is", "lock",
        "long", "namespace", "new", "null", "object", "operator", "out", "override", "params",
        "private", "protected", "public", "readonly", "ref", "return", "sbyte", "sealed", "short",
        "sizeof", "stackalloc", "static", "string", "struct", "switch", "this", "throw", "true",
        "try", "typeof", "uint", "ulong", "unchecked", "unsafe", "ushort", "using", "virtual",
        "void", "volatile", "while"
    ];
    const keywordRegex = new RegExp(`\\b(${keywords.join("|")})\\b`, "g");
    code = code.replace(keywordRegex, '<span class="csharp-keyword">$1</span>');

    // Highlight data types
    const types = ["int", "long", "float", "double", "decimal", "char", "string", "bool", "byte", "object", "void"];
    const typeRegex = new RegExp(`\\b(${types.join("|")})\\b`, "g");
    code = code.replace(typeRegex, '<span class="csharp-type">$1</span>');

    // Highlight method names (e.g., "MyMethod()")
    code = code.replace(/(\b[a-zA-Z_][a-zA-Z0-9_]*)(?=\s*\()/g, '<span class="csharp-method">$1</span>');

    // Highlight class names and properties (start with uppercase letters)
    code = code.replace(/\b([A-Z][a-zA-Z0-9_]*)\b/g, '<span class="csharp-class">$1</span>');

    // Safely apply the modified HTML back to the <pre> element
    pre.innerHTML = code;
});