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copied!<pre><code><pre> <script type="text/javascript"> function someFn() { /** * Some comment */ function fn1() { alert("/*This is not a comment, it's a string literal*/"); } function // keyword fn2 // name (x, y) // arguments { /* body */ } function fn3() { alert("this is the word function in a string literal"); } var f = function () { // anonymous, ignore }; } var s = someFn.toString(); // remove inline comments s = s.replace(/\/\/.*/g, ""); // compact all whitespace to a single space s = s.replace(/\s{2,}/g, " "); // remove all block comments, including those in string literals s = s.replace(/\/\*.*?\*\//g, ""); document.writeln(s); // remove string literals to avoid false matches with the keyword 'function' s = s.replace(/'.*?'/g, ""); s = s.replace(/".*?"/g, ""); document.writeln(s); // find all the function definitions var matches = s.match(/function(.*?)\(/g); for (var ii = 1; ii < matches.length; ++ii) { // extract the function name var funcName = matches[ii].replace(/function(.+)\(/, "$1"); // remove any remaining leading or trailing whitespace funcName = funcName.replace(/\s+$|^\s+/g, ""); if (funcName === '') { // anonymous function, discard continue; } // output the results document.writeln('[' + funcName + ']'); } </script> </pre> </code></pre> <p>I'm sure I missed something, but from your requirements in the original question, I think I've met the goal, including getting rid of the possibility of finding the <code>function</code> keyword in string literals.</p> <p>One last point, I don't see any problem with mangling the string literals in the function blocks. Your requirement was to find the function names, so I didn't bother trying to preserve the function content.</p>

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