From fe8ac339b635047b9c0744fbd2583af2b8b376d0 Mon Sep 17 00:00:00 2001
From: Viacheslav Demydiuk <vdemydiuk@gmail.com>
Date: Mon, 28 Jul 2025 23:29:01 +0300
Subject: [PATCH 1/2] MtApi5: set version to 2.0.1

---
 MtApi5/MtApi5.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MtApi5/MtApi5.csproj b/MtApi5/MtApi5.csproj
index e836a6c3..f10e46e9 100755
--- a/MtApi5/MtApi5.csproj
+++ b/MtApi5/MtApi5.csproj
@@ -3,7 +3,7 @@
 		<TargetFramework>net8.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
-		<VersionPrefix>2.0.0</VersionPrefix>
+		<VersionPrefix>2.0.1</VersionPrefix>
 		<BaseOutputPath>$(SolutionDir)build\products</BaseOutputPath>
 		<CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
 	</PropertyGroup>

From 136385de0af8c26576be5b4fef2c0c3431e64278 Mon Sep 17 00:00:00 2001
From: biohazardxxx <biohazardxxx@arcor.de>
Date: Thu, 19 Feb 2026 12:44:10 +0100
Subject: [PATCH 2/2] Fix invalid JSON from unescaped backslashes in MQL5
 string serialization

JSONString.toString() in mq5/json.mqh emitted raw strings without
escaping special characters. When MQL5 functions returned Windows paths
(e.g. TerminalInfoString), backslashes produced invalid JSON causing
JsonReaderException on the C# client side.

Escape backslash, double-quote, newline, carriage return, and tab
characters during serialization, matching the JSON spec.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 mq5/json.mqh | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/mq5/json.mqh b/mq5/json.mqh
index 1236b878..3a20923a 100755
--- a/mq5/json.mqh
+++ b/mq5/json.mqh
@@ -171,11 +171,17 @@ public:
      }
    string getString() { return _string; }
    void setString(string v) { _string=v; }
-   string toString() 
+   string toString()
    {
-    string string_var; 
-    StringConcatenate(string_var, "\"",_string,"\"");
-    return string_var; 
+    string escaped = _string;
+    StringReplace(escaped, "\\", "\\\\");
+    StringReplace(escaped, "\"", "\\\"");
+    StringReplace(escaped, "\n", "\\n");
+    StringReplace(escaped, "\r", "\\r");
+    StringReplace(escaped, "\t", "\\t");
+    string string_var;
+    StringConcatenate(string_var, "\"", escaped, "\"");
+    return string_var;
    }
   };
 // -----------------------------------------