root@0ae6b2f0fd1a:/Users/johannes/devel/swift-corelibs-foundation# swift
Welcome to Swift version 5.5-dev (LLVM fb5a91b4e892ed9, Swift f17142883421ec0).
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  1> import Foundation 
  2. #if canImport(FoundationXML) 
  3. import FoundationXML 
  4. #endif 
  5.  
  6.  
  7. func parseXML(_ xmlData: Data) { 
  8.  
  9.     let xmlDocument = try! XMLDocument(data: xmlData) 
 10.  
 11.     let rootElement = xmlDocument.rootElement()! 
 12.  
 13.     let child = rootElement.children?.first(where: { $0.localName == "child" }) as! XMLElement 
 14.     print("child attributes: \(child.attributes?.description ?? "nil")") 
 15.     print("child attribute1: \(child.attribute(forName: "attribute1")?.description ?? "nil")") 
 16. } 
 17.  
 18.  
 19. // XML without xmlns 
 20. let xmlData1 = Data(""" 
 21. <rootElement> 
 22.     <child attribute1="value1">Child Content</child> 
 23. </rootElement> 
 24. """.utf8) 
 25.  
 26. parseXML(xmlData1) 
 27.  
 28.  
 29. // XML with xmlns set to empty string 
 30. let xmlData2 = Data(""" 
 31. <rootElement> 
 32.     <child xmlns="" attribute1="value1">Child Content</child> 
 33. </rootElement> 
 34. """.utf8) 
 35.  
 36. parseXML(xmlData2)
child attributes: [ attribute1="value1"]
child attribute1:  attribute1="value1"
child attributes: [ attribute1="value1"]
child attribute1: nil
xmlData1: Data = 81 bytes
xmlData2: Data = 90 bytes