Improve code quality

Author: Jack251970

Plugins/Flow.Launcher.Plugin.Calculator/Main.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Globalization;
-using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text.RegularExpressions;
 using System.Windows.Controls;
@@ -16,8 +15,7 @@ public class Main : IPlugin, IPluginI18n, ISettingProvider
         private static readonly Regex RegBrackets = MainRegexHelper.GetRegBrackets();
         private static readonly Regex ThousandGroupRegex = MainRegexHelper.GetThousandGroupRegex();
         private static readonly Regex NumberRegex = MainRegexHelper.GetNumberRegex();
-        private static readonly Regex PowRegex = new(@"\bpow(\((?:[^()\[\]]|\((?<Depth>)|\)(?<-Depth>)|\[(?<Depth>)|\](?<-Depth>))*(?(Depth)(?!))\))", RegexOptions.Compiled | RegexOptions.RightToLeft);
-
+        private static readonly Regex PowRegex = MainRegexHelper.GetPowRegex();
 
         private static Engine MagesEngine;
         private const string Comma = ",";
@@ -200,7 +198,7 @@ private static string PowMatchEvaluator(Match m)
         /// Parses a string representation of a number using the system's current culture.
         /// </summary>
         /// <returns>A normalized number string with '.' as the decimal separator for the Mages engine.</returns>
-        private string NormalizeNumber(string numberStr)
+        private static string NormalizeNumber(string numberStr)
         {
             var culture = CultureInfo.CurrentCulture;
             var groupSep = culture.NumberFormat.NumberGroupSeparator;

Plugins/Flow.Launcher.Plugin.Calculator/MainRegexHelper.cs

@@ -4,7 +4,6 @@ namespace Flow.Launcher.Plugin.Calculator;
 
 internal static partial class MainRegexHelper
 {
-
     [GeneratedRegex(@"[\(\)\[\]]", RegexOptions.Compiled)]
     public static partial Regex GetRegBrackets();
 
@@ -13,4 +12,7 @@ internal static partial class MainRegexHelper
 
     [GeneratedRegex(@"\B(?=(\d{3})+(?!\d))", RegexOptions.Compiled)]
     public static partial Regex GetThousandGroupRegex();
+
+    [GeneratedRegex(@"\bpow(\((?:[^()\[\]]|\((?<Depth>)|\)(?<-Depth>)|\[(?<Depth>)|\](?<-Depth>))*(?(Depth)(?!))\))", RegexOptions.Compiled | RegexOptions.RightToLeft)]
+    public static partial Regex GetPowRegex();
 }