String Comparison giving unexpected result with data obtained via Alamofire - swift

Question

I am having issue with string comparison in Swift (I may wrong here).
Below is my method in which I am getting this issue.
Here is my input value.
self.callGrammerCheckAPI(ForText: """
ALSO BY STEPHEN HAWKING
A Brief History of Time
A Briefer History of Time
Black Holes and Baby Universes and Other Essays
The Illustrated A Brief History of Time
The Universe in a Nutshell
FOR CHILDREN
George's Secret Key to the Universe (with Lucy Hawking)
George's Cosmic Treasure Hunt (with Lucy Hawking)
ALSO BY LEONARD MLODINOW
A Briefer History of Time
The Drunkard's Walk: How Randomness Rules Our Lives
Euclid's Window: The Story of Geometry from Parallel Lines to Hyperspace
Feynman's Rainbow: A Search for Beauty in Physics and in Life
FOR CHILLDRAN
The Last Dinosaur (with Matt Costello)
Titanic Cat (with Matt Costello)
""")
Here is the method I am calling.
func callGrammerCheckAPI(ForText text:String) -> Void {
var valueToValidate = (text.components(separatedBy: .whitespacesAndNewlines).joined(separator: "+"))
let url = "https://montanaflynn-spellcheck.p.rapidapi.com/check/?text=\(valueToValidate)"
let headers: HTTPHeaders = [
"X-RapidAPI-Key": "3LlMwHr729mshN6RendH4kjvVp1pp1ogORZjsng5F2pBZdjsL3"
]
Alamofire.request(url, headers: headers).responseJSON { response in
print("Request: \(String(describing: response.request))") // original url request
print("Response: \(String(describing: response.response))") // http url response
print("Result: \(response.result)") // response serialization result
let attributedText = NSMutableAttributedString.init(string: text)
switch response.result{
case .success(let returnValue):
print(returnValue)
if let valueToParse = returnValue as? [String:Any]{
if let correctionsFound = valueToParse["corrections"] as? [String:Any]{
attributedText.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.black, range: NSRange.init(location: 0, length: attributedText.string.utf16.count))
for key in correctionsFound.keys{
let unwantedCharRegex = try! NSRegularExpression.init(pattern: "([(/\')])", options: NSRegularExpression.Options.caseInsensitive)
let formatedKey = unwantedCharRegex.stringByReplacingMatches(in: key, options: NSRegularExpression.MatchingOptions.reportCompletion, range: NSRange.init(location: 0, length: key.count), withTemplate: "")
let expression = "(\(formatedKey))."
let regex = try! NSRegularExpression.init(pattern: expression , options: NSRegularExpression.Options.caseInsensitive)
let matches = regex.matches(in: attributedText.string, options: NSRegularExpression.MatchingOptions.reportCompletion, range: NSRange.init(location: 0, length: attributedText.string.utf16.count))
outerloop: for result in matches{
guard let availableOptions = correctionsFound[key] as? [String] else{
return
}
let valueToFound:NSString = NSString.init(string: attributedText.string.subString(from: result.range.location, to: result.range.location+result.range.length))
for suggestion in availableOptions{
let leftValue:NSString = NSString.init(string: suggestion)
let rightValue:NSString = valueToFound
print("\(leftValue) == \(rightValue) = \(leftValue == rightValue)")
if (leftValue == rightValue) == true {
print("Continue Done")
continue outerloop
}
}
attributedText.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.red, range: result.range)
}
}
}
}
break
case .failure(let error):
print(error)
break
}
OperationQueue.main.addOperation {
self.tvReference.attributedText = attributedText
self.navigationItem.prompt = nil
}
if let json = response.result.value {
print("JSON: \(json)") // serialized json response
}
if let data = response.data, let utf8Text = String(data: data, encoding: .utf8) {
print("Data: \(utf8Text)") // original server data as UTF8 string
}
}
}
Issue is when I compare leftValue and rightValue even though both the values are same it returns false. I do not know what went wrong there.