I am doing a body temp regex validation using a regex string. I've tried 2 approach for this validation but both seems to be failing. The regex string itself is correct as I've checked it on an online regex validator
import Foundation
let inputValue = "98.9"
let regexString = "/(96\\.(?:[5-9])$|97$|97(\\.(?:[0-9]))$|98$|98(\\.(?:[0-9]))$|99$|99(\\.(?:[0-5])+$))/"
/// Approach #1
let regexPredicate = NSPredicate(format: "SELF MATCHES %@", regexString)
let regexValidationResult1 = regexPredicate.evaluate(with: inputValue) // Returns false
/// Approach #2
let regex = try! NSRegularExpression(pattern: regexString)
let inputValuerange = NSRange(location: 0, length: inputValue.count)
let regexValidationResult2 = regex.firstMatch(in: inputValue, options: [], range: inputValuerange) // Returns nil
