80 function normalize(aPath) {  argument
81   var path = aPath;
82   var url = urlParse(aPath);
85       return aPath;
141 function join(aRoot, aPath) {  argument
145   if (aPath === "") {
146     aPath = ".";
148   var aPathUrl = urlParse(aPath);
162   if (aPathUrl || aPath.match(dataUrlRegexp)) {
163     return aPath;
168     aRootUrl.host = aPath;
172   var joined = aPath.charAt(0) === '/'
173     ? aPath
174     : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);
184 exports.isAbsolute = function (aPath) {  argument
185   return aPath.charAt(0) === '/' || urlRegexp.test(aPath);
194 function relative(aRoot, aPath) {  argument
206   while (aPath.indexOf(aRoot + '/') !== 0) {
209       return aPath;
217       return aPath;
224   return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);