Build regex at compile time

Author: VictoriousRaptor

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

@@ -11,12 +11,23 @@
 
 namespace Flow.Launcher.Plugin.Calculator
 {
-    public class Main : IPlugin, IPluginI18n, ISettingProvider
+    public partial class Main : IPlugin, IPluginI18n, ISettingProvider
     {
-        private static readonly Regex RegValidExpressChar = MainRegexHelper.GetRegValidExpressChar();
-        private static readonly Regex RegBrackets = MainRegexHelper.GetRegBrackets();
-        private static readonly Regex ThousandGroupRegex = new Regex(@"\B(?=(\d{3})+(?!\d))", RegexOptions.Compiled);
-        private static readonly Regex NumberRegex = new Regex(@"[\d\.,]+", RegexOptions.Compiled);
+        private static readonly Regex RegValidExpressChar = GetRegValidExpressChar();
+        private static readonly Regex RegBrackets = GetRegBrackets();
+        private static readonly Regex ThousandGroupRegex = GetThousandGroupRegex();
+        private static readonly Regex NumberRegex = GetNumberRegex();
+
+        [GeneratedRegex(@"\B(?=(\d{3})+(?!\d))", RegexOptions.Compiled)]
+        private static partial Regex GetThousandGroupRegex();
+
+        [GeneratedRegex(@"[\(\)\[\]]", RegexOptions.Compiled)]
+        public static partial Regex GetRegBrackets();
+
+        [GeneratedRegex(@"^(ceil|floor|exp|pi|e|max|min|det|abs|log|ln|sqrt|sin|cos|tan|arcsin|arccos|arctan|eigval|eigvec|eig|sum|polar|plot|round|sort|real|zeta|bin2dec|hex2dec|oct2dec|factorial|sign|isprime|isinfty|==|~=|&&|\|\||(?:\<|\>)=?|[ei]|[0-9]|0x[\da-fA-F]+|[\+\%\-\*\/\^\., ""]|[\(\)\|\!\[\]])+$", RegexOptions.Compiled)]
+        public static partial Regex GetRegValidExpressChar();
+        [GeneratedRegex(@"[\d\.,]+", RegexOptions.Compiled)]
+        private static partial Regex GetNumberRegex();
 
 
         private static Engine MagesEngine;