var inserted, Module = require('module'), fs = require('fs'), existingExtFn = Module._extensions[".js"] , amdefineRegExp = /amdefine\.js/; 
inserted = "if (typeof define !== 'function') {var define = require('amdefine')(module)}"; 
function stripBOM(content){ 
if (content.charCodeAt(0) === 65279) { 
content = content.slice(1); 
} 
return content; 
} 
function intercept(module, filename){ 
var content = stripBOM(fs.readFileSync(filename, 'utf8')); 
if (!amdefineRegExp.test(module.id)) { 
content = inserted + content; 
} 
module._compile(content, filename); 
} 
intercept._id = 'amdefine/intercept'; 
if (!existingExtFn._id || existingExtFn._id !== intercept._id) { 
Module._extensions[".js"]  = intercept; 
}