wallet-core/thirdparty/systemjs/lib/url-polyfill.js

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// from https://gist.github.com/Yaffle/1088850
(function(global) {
function URLPolyfill(url, baseURL) {
if (typeof url != 'string')
throw new TypeError('URL must be a string');
var m = String(url).replace(/^\s+|\s+$/g, "").match(/^([^:\/?#]+:)?(?:\/\/(?:([^:@\/?#]*)(?::([^:@\/?#]*))?@)?(([^:\/?#]*)(?::(\d*))?))?([^?#]*)(\?[^#]*)?(#[\s\S]*)?/);
if (!m)
throw new RangeError('Invalid URL format');
var protocol = m[1] || "";
var username = m[2] || "";
var password = m[3] || "";
var host = m[4] || "";
var hostname = m[5] || "";
var port = m[6] || "";
var pathname = m[7] || "";
var search = m[8] || "";
var hash = m[9] || "";
if (baseURL !== undefined) {
var base = baseURL instanceof URLPolyfill ? baseURL : new URLPolyfill(baseURL);
var flag = !protocol && !host && !username;
if (flag && !pathname && !search)
search = base.search;
if (flag && pathname[0] !== "/")
pathname = (pathname ? (((base.host || base.username) && !base.pathname ? "/" : "") + base.pathname.slice(0, base.pathname.lastIndexOf("/") + 1) + pathname) : base.pathname);
// dot segments removal
var output = [];
pathname.replace(/^(\.\.?(\/|$))+/, "")
.replace(/\/(\.(\/|$))+/g, "/")
.replace(/\/\.\.$/, "/../")
.replace(/\/?[^\/]*/g, function (p) {
if (p === "/..")
output.pop();
else
output.push(p);
});
pathname = output.join("").replace(/^\//, pathname[0] === "/" ? "/" : "");
if (flag) {
port = base.port;
hostname = base.hostname;
host = base.host;
password = base.password;
username = base.username;
}
if (!protocol)
protocol = base.protocol;
}
// convert URLs to use / always
pathname = pathname.replace(/\\/g, '/');
this.origin = host ? protocol + (protocol !== "" || host !== "" ? "//" : "") + host : "";
this.href = protocol + (protocol && host || protocol == "file:" ? "//" : "") + (username !== "" ? username + (password !== "" ? ":" + password : "") + "@" : "") + host + pathname + search + hash;
this.protocol = protocol;
this.username = username;
this.password = password;
this.host = host;
this.hostname = hostname;
this.port = port;
this.pathname = pathname;
this.search = search;
this.hash = hash;
}
global.URLPolyfill = URLPolyfill;
})(typeof self != 'undefined' ? self : global);