import { XMLParser, XMLBuilder } from "fast-xml-parser"; const input = ` `; function convert(element) { const codes = [ ...element.MouseRect.CallbackCode.matchAll(/([\d]*)[\s]*\(>L:CEVENT\)/gm), ].map((m) => m[1]); return { "@_Name": "MD11_Button", NODE_ID: element.Name, CODE_PRESS: `${codes[0]} (>L:CEVENT)`, CODE_RELEASE: `${codes[1]} (>L:CEVENT)`, }; } const parser = new XMLParser({ ignoreAttributes: false, }); let jObj = parser.parse(input); const output = []; if (Array.isArray(jObj.PartInfo)) { jObj.PartInfo.forEach((element) => { output.push(convert(element)); }); } else { output.push(convert(jObj.PartInfo)); } const builder = new XMLBuilder({ ignoreAttributes: false, arrayNodeName: "UseTemplate", format: true, }); const xmlContent = builder.build(output); console.log(xmlContent);