From 84275d08d218aa71bb6fc511e0acc8b1d6efbd59 Mon Sep 17 00:00:00 2001
From: tmotl <tim.motl@mailbox.org>
Date: Mon, 4 Sep 2017 21:01:28 +0200
Subject: [PATCH] Fix for issue #4021 - Crash due to backslash at end of text
 fields for Custom G-code (#4117)

* back-slash at end of line in printer settings.../custom g-code does not crash slic3r anymore (issue #4021)

* fixes issue #4021
---
 xs/src/libslic3r/Config.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xs/src/libslic3r/Config.cpp b/xs/src/libslic3r/Config.cpp
index abcc4afc1..ad11df720 100644
--- a/xs/src/libslic3r/Config.cpp
+++ b/xs/src/libslic3r/Config.cpp
@@ -32,6 +32,9 @@ std::string escape_string_cstyle(const std::string &str)
         if (c == '\n' || c == '\r') {
             (*outptr ++) = '\\';
             (*outptr ++) = 'n';
+        } else if (c == '\\'){
+            (*outptr ++) = '\\';
+            (*outptr ++) = '\\';
         } else
             (*outptr ++) = c;
     }