From 9f30f9f68690a2e5bfa4c9eb24db2c307a96831a Mon Sep 17 00:00:00 2001
From: Benjamin Erhart <berhart@netzarchitekten.com>
Date: Tue, 14 Apr 2026 17:53:22 +0200
Subject: [PATCH] Issue #1: format the `BlockedCount` number output to locale.

---
 dns/BlockedCount.swift | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/dns/BlockedCount.swift b/dns/BlockedCount.swift
index 8a0faab..69d7686 100644
--- a/dns/BlockedCount.swift
+++ b/dns/BlockedCount.swift
@@ -3,8 +3,18 @@ import SwiftUI
 import Foundation
 
 struct BlockedCount: View {
+
     @State private var txtRecord: String = "..."
 
+    private static let startIndex = 44
+
+    private static let formatter: NumberFormatter = {
+        let formatter = NumberFormatter()
+        formatter.numberStyle = .decimal
+
+        return formatter
+    }()
+
     var body: some View {
         Text(txtRecord)
         .onAppear {
@@ -16,26 +26,21 @@ struct BlockedCount: View {
         // This is a DNS wire format response and we make a lot of assumptions
         // It is not critical functionality so just let it fail if it fails
 
-        guard data.count > 44 else { return nil }
-
-        let startIndex = 44
-        let subData = data.suffix(from: startIndex)
-
-        // Find the first space character (ASCII 32)
-        var endIndex: Int?
-        for (offset, byte) in subData.enumerated() {
-            if byte == 32 { // Space character
-                endIndex = offset
-                break
-            }
+        guard data.count > Self.startIndex else {
+            return nil
         }
 
-        guard let foundEndIndex = endIndex else { return nil }
+        // Find the first space character (ASCII 32).
+        guard let endIndex = data.suffix(from: Self.startIndex).firstIndex(of: 32) else {
+            return nil
+        }
 
-        // Extract bytes between start and space
-        let numberData = subData.prefix(foundEndIndex)
+        guard let numberString = String(data: data[Self.startIndex ..< endIndex], encoding: .utf8)
+        else {
+            return nil
+        }
 
-        return String(decoding: numberData, as: UTF8.self)
+        return Self.formatter.string(for: Int(numberString))
     }
     
     func fetchTXTRecord() {