/**
 * 字符串转XML
 * @param szXml
 * @returns
 */
import isIE from '../../EnvironmentalJudgment/isIE';

function parseXmlFromStr(szXml: string) {
  if (null === szXml || '' === szXml) {
    return null;
  }
  if ('string' !== typeof szXml) {
    return null;
  }
  szXml = szXml.toString().replace(/&(?!lt;|amp;|gt;|apos;|quot;)/g, '&');
  let oXml = null;
  try {
    if (isIE()) {
      let oXml = new ActiveXObject('Microsoft.XMLDOM');
      oXml.async = false;
      oXml.loadXML(szXml);
    } else {
      let oParser = new DOMParser();
      oXml = oParser.parseFromString(szXml, 'text/xml');
    }
  } catch (e) {
    let oXml = new ActiveXObject('Microsoft.XMLDOM');
    oXml.async = false;
    oXml.loadXML(szXml);
  }
  return oXml;
}

export default parseXmlFromStr;