systemjs/lib/polyfill-wrapper-start.js
2014-11-14 14:12:02 +02:00

71 lines
2.4 KiB
JavaScript

(function($__global) {
$__global.upgradeSystemLoader = function() {
$__global.upgradeSystemLoader = undefined;
// indexOf polyfill for IE
var indexOf = Array.prototype.indexOf || function(item) {
for (var i = 0, l = this.length; i < l; i++)
if (this[i] === item)
return i;
return -1;
}
// Absolute URL parsing, from https://gist.github.com/Yaffle/1088850
function parseURI(url) {
var m = String(url).replace(/^\s+|\s+$/g, '').match(/^([^:\/?#]+:)?(\/\/(?:[^:@\/?#]*(?::[^:@\/?#]*)?@)?(([^:\/?#]*)(?::(\d*))?))?([^?#]*)(\?[^#]*)?(#[\s\S]*)?/);
// authority = '//' + user + ':' + pass '@' + hostname + ':' port
return (m ? {
href : m[0] || '',
protocol : m[1] || '',
authority: m[2] || '',
host : m[3] || '',
hostname : m[4] || '',
port : m[5] || '',
pathname : m[6] || '',
search : m[7] || '',
hash : m[8] || ''
} : null);
}
function toAbsoluteURL(base, href) {
function removeDotSegments(input) {
var output = [];
input.replace(/^(\.\.?(\/|$))+/, '')
.replace(/\/(\.(\/|$))+/g, '/')
.replace(/\/\.\.$/, '/../')
.replace(/\/?[^\/]*/g, function (p) {
if (p === '/..')
output.pop();
else
output.push(p);
});
return output.join('').replace(/^\//, input.charAt(0) === '/' ? '/' : '');
}
href = parseURI(href || '');
base = parseURI(base || '');
return !href || !base ? null : (href.protocol || base.protocol) +
(href.protocol || href.authority ? href.authority : base.authority) +
removeDotSegments(href.protocol || href.authority || href.pathname.charAt(0) === '/' ? href.pathname : (href.pathname ? ((base.authority && !base.pathname ? '/' : '') + base.pathname.slice(0, base.pathname.lastIndexOf('/') + 1) + href.pathname) : base.pathname)) +
(href.protocol || href.authority || href.pathname ? href.search : (href.search || base.search)) +
href.hash;
}
// clone the original System loader
var System;
(function() {
var originalSystem = $__global.System;
System = $__global.System = new LoaderPolyfill(originalSystem);
System.baseURL = originalSystem.baseURL;
System.paths = { '*': '*.js' };
System.originalSystem = originalSystem;
})();
System.noConflict = function() {
$__global.SystemJS = System;
$__global.System = System.originalSystem;
}