MediaWiki:Common.js

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// Add csharp class to all <pre> tags
document.querySelectorAll("pre").forEach(pre => pre.classList.add("csharp"));

// Define C# keywords
const csharpKeywords = [
    "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"
];

// Define C# data types
const csharpDataTypes = [
    "int", "string", "bool", "float", "double", "char", "long", "short", "byte", "decimal", "object"
];

// Define C# operators
const csharpOperators = [
    "=", "==", "+", "-", "*", "/", "%", "++", "--", "&&", "||", "!", "?", ":", "<", ">", "<=", ">="
];

// Highlight C# keywords, data types, operators, comments, and strings
document.querySelectorAll("pre.csharp").forEach(pre => {
    let code = pre.innerHTML;

    // Highlight keywords
    const keywordRegex = new RegExp(`\\b(${csharpKeywords.join("|")})\\b`, "g");
    code = code.replace(keywordRegex, '<span class="csharp-keyword">$1</span>');

    // Highlight data types
    const dataTypeRegex = new RegExp(`\\b(${csharpDataTypes.join("|")})\\b`, "g");
    code = code.replace(dataTypeRegex, '<span class="csharp-data-type">$1</span>');

    // Highlight operators
    const operatorRegex = new RegExp(`(${csharpOperators.join("|")})`, "g");
    code = code.replace(operatorRegex, '<span class="csharp-operator">$1</span>');

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

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

    // Highlight strings
    const stringRegex = /"([^"]*)"/g;
    code = code.replace(stringRegex, '<span class="csharp-string">"$1"</span>');

    pre.innerHTML = code;
});