--- /dev/null
+'use strict';
+
+function posix(path) {
+ return path.charAt(0) === '/';
+}
+
+function win32(path) {
+ // https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56
+ var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
+ var result = splitDeviceRe.exec(path);
+ var device = result[1] || '';
+ var isUnc = Boolean(device && device.charAt(1) !== ':');
+
+ // UNC paths are always absolute
+ return Boolean(result[2] || isUnc);
+}
+
+module.exports = process.platform === 'win32' ? win32 : posix;
+module.exports.posix = posix;
+module.exports.win32 = win32;