added a format label

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS/Components/TextFields/InputField/TextField.swift

@@ -47,6 +47,17 @@ open class TextField: UITextField, ViewProtocol, Errorable {
     //--------------------------------------------------
     // MARK: - Properties
     //--------------------------------------------------
+    private var formatLabel = Label().with { 
+        $0.tag = 999
+        $0.textColorConfiguration = ViewColorConfiguration().with {
+            $0.setSurfaceColors(VDSColor.interactiveDisabledOnlight, VDSColor.interactiveDisabledOndark, forDisabled: true)
+            $0.setSurfaceColors(VDSColor.elementsSecondaryOnlight, VDSColor.elementsSecondaryOndark, forDisabled: false)
+        }.eraseToAnyColorable()
+    }
+    
+    /// Format String similar to placeholder
+    open var formatText: String?
+
     /// TextStyle used on the titleLabel.
     open var textStyle: TextStyle = .defaultStyle { didSet { setNeedsUpdate() } }
 
@@ -114,6 +125,37 @@ open class TextField: UITextField, ViewProtocol, Errorable {
 
     open func updateView() {
         updateLabel()
+        updateFormat()
+    }
+    
+    open func updateFormat() {
+        guard let formatText else {
+            formatLabel.text = ""
+            return
+        } 
+            
+        if viewWithTag(999) == nil {
+            addSubview(formatLabel)
+            formatLabel.pinToSuperView()
+        }
+
+        var attributes: [any LabelAttributeModel]?
+        var finalFormatText = formatText
+        
+        if let text, !text.isEmpty {
+            //make the color of the matching text clear
+            attributes = [ColorLabelAttribute(location: 0, length: text.count, color: .clear)]
+
+            let startIndex = formatText.index(formatText.startIndex, offsetBy: text.count)
+            if startIndex < formatText.endIndex {
+                finalFormatText = text + formatText[startIndex...]
+            }
+        }
+        
+        //set the label
+        formatLabel.surface = surface
+        formatLabel.text = finalFormatText
+        formatLabel.attributes = attributes
     }
 
     open func updateAccessibility() {