Google Apps ScriptでRSS1.0・RSS2.0・ATOMを取得

function getRSS10(feedURL) { if (feedURL) { var sheet = SpreadsheetApp.getActiveSheet(); var row = sheet.getLastRow() + 1; var xml = UrlFetchApp.fetch(feedURL).getContentText(); var document = XmlService.parse(xml); var root = document.getRootElement(); var rss = XmlService.getNamespace('http://pur…