Add ReplaceNodeOption flag (#710)

src/WireMock.Net/Util/JsonUtils.cs

@@ -10,6 +10,33 @@ namespace WireMock.Util
 {
     internal static class JsonUtils
     {
+        public static bool TryParseAsComplexObject(string strInput, out JToken token)
+        {
+            token = null;
+
+            if (string.IsNullOrWhiteSpace(strInput))
+            {
+                return false;
+            }
+
+            strInput = strInput.Trim();
+            if ((!strInput.StartsWith("{") || !strInput.EndsWith("}")) && (!strInput.StartsWith("[") || !strInput.EndsWith("]")))
+            {
+                return false;
+            }
+
+            try
+            {
+                // Try to convert this string into a JToken
+                token = JToken.Parse(strInput);
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
         public static string Serialize<T>(T value)
         {
             return JsonConvert.SerializeObject(value, JsonSerializationConstants.JsonSerializerSettingsIncludeNullValues);

src/WireMock.Net/Util/StringUtils.cs

@@ -0,0 +1,42 @@
+using System.Linq;
+using System.Text.RegularExpressions;
+
+namespace WireMock.Util
+{
+    internal static class StringUtils
+    {
+        public static bool TryParseQuotedString(string value, out string result, out char quote)
+        {
+            result = null;
+            quote = '\0';
+
+            if (value == null || value.Length < 2)
+            {
+                return false;
+            }
+
+            quote = value[0]; // This can be single or a double quote
+            if (quote != '"' && quote != '\'')
+            {
+                return false;
+            }
+
+            if (value.Last() != quote)
+            {
+                return false;
+            }
+
+            try
+            {
+                result = Regex.Unescape(value.Substring(1, value.Length - 2));
+                return true;
+            }
+            catch
+            {
+                // Ignore Exception, just continue and return false.
+            }
+
+            return false;
+        }
+    }
+}