Incorrect format after parsing string HTML in Swift

Question

While parsing I use this code

  func encode() -> String{
        var newStr = String(utf8String: self.cString(using: .utf8)!)
        newStr = newStr!.removingPercentEncoding

        guard let data = String(utf8String: self.cString(using: .utf8)!)?.data(using: .utf8) else {
            return newStr!
        }     
        guard let attributedString = try? NSAttributedString(data: data, options: [NSAttributedString.DocumentReadingOptionKey.documentType: NSAttributedString.DocumentType.html, NSAttributedString.DocumentReadingOptionKey.characterEncoding:  String.Encoding.utf8.rawValue], documentAttributes: nil) else {
            return newStr!
        }
       return  attributedString.string
    }

the problem is that it removes the \n. So I do not display the text correctly

TBH, you are doing very strange things with cString there. It's hard to just look at the code. Can you please at least debug it and find after which line the newline is lost? — ivanmoskalev
– ivanmoskalev, Commented Aug 21, 2018 at 11:11
Not related but the double String round-trip is horrible. Converting to cString and back to String is nonsense. Replace the first two lines and the entire first guard statement with let data = Data(self.utf8) and replace return newStr! with return self — vadian
– vadian, Commented Aug 21, 2018 at 11:14
Can you tell us what you are trying to accomplish? then it might be easier to help you — Daniel Klöck
– Daniel Klöck, Commented Aug 21, 2018 at 11:30

Daniel Klöck · Accepted Answer · 2018-08-21 11:25:13Z

1

That's because you are using NSAttributedString.DocumentReadingOptionKey.documentType: NSAttributedString.DocumentType.html

depending on what you are trying to accomplish, you may just ignore that fact or replace "\n" with something else in your String.

answered Aug 21, 2018 at 11:25

Daniel Klöck

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