debugging phase of user creation process

nirvana-ios/Globals/CustomExtensions.swift

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+//
+//  CustomExtensions.swift
+//  nirvana-ios
+//
+//  Created by Arjun Patel on 12/18/21.
+//
+
+import Foundation
+
+extension String {
+    // custom function to give (949)920-0392 and get out the right thing
+    func applyPatternOnNumbers(pattern: String, replacementCharacter: Character) -> String {
+        var pureNumber = self.replacingOccurrences( of: "[^0-9]", with: "", options: .regularExpression)
+        for index in 0 ..< pattern.count {
+            guard index < pureNumber.count else { return pureNumber }
+            let stringIndex = String.Index(utf16Offset: index, in: pattern)
+            let patternCharacter = pattern[stringIndex]
+            guard patternCharacter != replacementCharacter else { continue }
+            pureNumber.insert(patternCharacter, at: stringIndex)
+        }
+        return pureNumber
+    }
+}