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- // Copyright (c) Microsoft Corporation. All rights reserved.
- // Licensed under the MIT License. See License.txt in the project root for license information.
- var parser = new DOMParser();
- export function parseXML(str) {
- try {
- var dom = parser.parseFromString(str, "application/xml");
- throwIfError(dom);
- var obj = domToObject(dom.childNodes[0]);
- return Promise.resolve(obj);
- }
- catch (err) {
- return Promise.reject(err);
- }
- }
- var errorNS = "";
- try {
- errorNS = parser.parseFromString("INVALID", "text/xml").getElementsByTagName("parsererror")[0].namespaceURI;
- }
- catch (ignored) {
- // Most browsers will return a document containing <parsererror>, but IE will throw.
- }
- function throwIfError(dom) {
- if (errorNS) {
- var parserErrors = dom.getElementsByTagNameNS(errorNS, "parsererror");
- if (parserErrors.length) {
- throw new Error(parserErrors.item(0).innerHTML);
- }
- }
- }
- function isElement(node) {
- return !!node.attributes;
- }
- /**
- * Get the Element-typed version of the provided Node if the provided node is an element with
- * attributes. If it isn't, then undefined is returned.
- */
- function asElementWithAttributes(node) {
- return isElement(node) && node.hasAttributes() ? node : undefined;
- }
- function domToObject(node) {
- var result = {};
- var childNodeCount = node.childNodes.length;
- var firstChildNode = node.childNodes[0];
- var onlyChildTextValue = (firstChildNode && childNodeCount === 1 && firstChildNode.nodeType === Node.TEXT_NODE && firstChildNode.nodeValue) || undefined;
- var elementWithAttributes = asElementWithAttributes(node);
- if (elementWithAttributes) {
- result["$"] = {};
- for (var i = 0; i < elementWithAttributes.attributes.length; i++) {
- var attr = elementWithAttributes.attributes[i];
- result["$"][attr.nodeName] = attr.nodeValue;
- }
- if (onlyChildTextValue) {
- result["_"] = onlyChildTextValue;
- }
- }
- else if (childNodeCount === 0) {
- result = "";
- }
- else if (onlyChildTextValue) {
- result = onlyChildTextValue;
- }
- if (!onlyChildTextValue) {
- for (var i = 0; i < childNodeCount; i++) {
- var child = node.childNodes[i];
- // Ignore leading/trailing whitespace nodes
- if (child.nodeType !== Node.TEXT_NODE) {
- var childObject = domToObject(child);
- if (!result[child.nodeName]) {
- result[child.nodeName] = childObject;
- }
- else if (Array.isArray(result[child.nodeName])) {
- result[child.nodeName].push(childObject);
- }
- else {
- result[child.nodeName] = [result[child.nodeName], childObject];
- }
- }
- }
- }
- return result;
- }
- // tslint:disable-next-line:no-null-keyword
- var doc = document.implementation.createDocument(null, null, null);
- var serializer = new XMLSerializer();
- export function stringifyXML(obj, opts) {
- var rootName = opts && opts.rootName || "root";
- var dom = buildNode(obj, rootName)[0];
- return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' + serializer.serializeToString(dom);
- }
- function buildAttributes(attrs) {
- var result = [];
- for (var _i = 0, _a = Object.keys(attrs); _i < _a.length; _i++) {
- var key = _a[_i];
- var attr = doc.createAttribute(key);
- attr.value = attrs[key].toString();
- result.push(attr);
- }
- return result;
- }
- function buildNode(obj, elementName) {
- if (typeof obj === "string" || typeof obj === "number" || typeof obj === "boolean") {
- var elem = doc.createElement(elementName);
- elem.textContent = obj.toString();
- return [elem];
- }
- else if (Array.isArray(obj)) {
- var result = [];
- for (var _i = 0, obj_1 = obj; _i < obj_1.length; _i++) {
- var arrayElem = obj_1[_i];
- for (var _a = 0, _b = buildNode(arrayElem, elementName); _a < _b.length; _a++) {
- var child = _b[_a];
- result.push(child);
- }
- }
- return result;
- }
- else if (typeof obj === "object") {
- var elem = doc.createElement(elementName);
- for (var _c = 0, _d = Object.keys(obj); _c < _d.length; _c++) {
- var key = _d[_c];
- if (key === "$") {
- for (var _e = 0, _f = buildAttributes(obj[key]); _e < _f.length; _e++) {
- var attr = _f[_e];
- elem.attributes.setNamedItem(attr);
- }
- }
- else {
- for (var _g = 0, _h = buildNode(obj[key], key); _g < _h.length; _g++) {
- var child = _h[_g];
- elem.appendChild(child);
- }
- }
- }
- return [elem];
- }
- else {
- throw new Error("Illegal value passed to buildObject: " + obj);
- }
- }
- //# sourceMappingURL=xml.browser.js.map
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