JsonPartialMatcher - support Regex (#771)

* JsonPartialMatcher - support Regex

* .

* .

* more tests

* .

* .

src/WireMock.Net/Util/RegexUtils.cs

@@ -1,24 +1,53 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
+using WireMock.RegularExpressions;
 
-namespace WireMock.Util
+namespace WireMock.Util;
+
+internal static class RegexUtils
 {
-    internal static class RegexUtils
+    private static readonly TimeSpan RegexTimeOut = new(0, 0, 10);
+
+    public static Dictionary<string, string> GetNamedGroups(Regex regex, string input)
     {
-        public static Dictionary<string, string> GetNamedGroups(Regex regex, string input)
+        var namedGroupsDictionary = new Dictionary<string, string>();
+
+        GroupCollection groups = regex.Match(input).Groups;
+        foreach (string groupName in regex.GetGroupNames())
         {
-            var namedGroupsDictionary = new Dictionary<string, string>();
-
-            GroupCollection groups = regex.Match(input).Groups;
-            foreach (string groupName in regex.GetGroupNames())
+            if (groups[groupName].Captures.Count > 0)
             {
-                if (groups[groupName].Captures.Count > 0)
-                {
-                    namedGroupsDictionary.Add(groupName, groups[groupName].Value);
-                }
+                namedGroupsDictionary.Add(groupName, groups[groupName].Value);
             }
+        }
 
-            return namedGroupsDictionary;
+        return namedGroupsDictionary;
+    }
+
+    public static (bool IsValid, bool Result) MatchRegex(string pattern, string input, bool useRegexExtended = true)
+    {
+        if (string.IsNullOrEmpty(pattern))
+        {
+            return (false, false);
+        }
+
+        try
+        {
+            if (useRegexExtended)
+            {
+                var r = new RegexExtended(pattern, RegexOptions.None, RegexTimeOut);
+                return (true, r.IsMatch(input));
+            }
+            else
+            {
+                var r = new Regex(pattern, RegexOptions.None, RegexTimeOut);
+                return (true, r.IsMatch(input));
+            }
+        }
+        catch
+        {
+            return (false, false);
         }
     }
-}
+}