function reBasenameWindows() {
	return /^(?:[a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+|)(?:[\\\/]|)(?:[\s\S]*?)((?:\.{1,2}|[^\\\/]+?|)(?:\.[^.\/\\]*|))(?:[\\\/]*)$/; // eslint-disable-line no-useless-escape
}
Returns a regular expression to capture the last part of a Windows path.

@returns {RegExp} regular expression

@example
var RE = reBasenameWindows();
var base = RE.exec( 'foo\\bar\\index.js' )[ 1 ];
// returns 'index.js'