HTML string to formatted text in Swift

Question

Hello I have a string that I want to write to a text document in Swift. Because the text document has line breaks, however, the string seems to be in HTML format. Here is what I want to do:

    //Covert str1 to str2
    var str1 = "1<div>2</div><div>3</div><div>4</div>"
    var str2 = "1        
                2
                3
                4" //Text document will have text that looks like this (With line breaks)

Mateusz · Accepted Answer · 2015-04-09 17:10:26Z

1

You can try with NSAttributedString:

let htmlString = "1<div>2</div><div>3</div><div>4</div>"
NSAttributedString(data: htmlString.dataUsingEncoding(NSUnicodeStringEncoding)!,
options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType],
documentAttributes: nil,
error: nil);

this will produce:

"1\n2\n3\n4\n"

answered Apr 9, 2015 at 17:10

Mateusz

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3 Comments

Arvin Zadeh Over a year ago

If this is always NSAttributedString, how do write that to a text file?

Mateusz Over a year ago

NSAttributedString has property string

Mateusz Over a year ago

from documentation: Attachment characters are not removed from the value of this property

mn1 · Accepted Answer · 2017-07-05 18:36:54Z

Swift 3.0: You can pop this directly into Xcode's playground to check it out.

let htmlString = "1<div>2</div><div>3</div><div>4</div>"
func getHtmlFormat(fromString htmlString: String) -> NSAttributedString? {
    guard let htmlData = htmlString.data(using: String.Encoding.unicode) else
    {
        print("Could not get htmlData")
        return nil
    }
    do {
        return try NSAttributedString(data: htmlData, options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil)
    } catch let error {
        print(error)
        return nil
    }
}

let textView = UITextView(frame: CGRect(x: 0, y: 0, width: 500, height: 500))
textView.attributedText = getHtmlFormat(fromString: htmlString)

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