39 lines
953 B
JavaScript
39 lines
953 B
JavaScript
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"use strict";
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/* eslint-disable */
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/**
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* @param {string[]} pathComponents
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* @returns {string}
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*/
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function normalizeUrl(pathComponents) {
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return pathComponents.reduce(function (accumulator, item) {
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switch (item) {
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case "..":
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accumulator.pop();
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break;
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case ".":
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break;
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default:
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accumulator.push(item);
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}
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return accumulator;
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}, /** @type {string[]} */[]).join("/");
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}
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/**
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* @param {string} urlString
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* @returns {string}
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*/
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module.exports = function (urlString) {
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urlString = urlString.trim();
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if (/^data:/i.test(urlString)) {
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return urlString;
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}
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var protocol = urlString.indexOf("//") !== -1 ? urlString.split("//")[0] + "//" : "";
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var components = urlString.replace(new RegExp(protocol, "i"), "").split("/");
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var host = components[0].toLowerCase().replace(/\.$/, "");
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components[0] = "";
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var path = normalizeUrl(components);
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return protocol + host + path;
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};
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