From 7c0bd531236c7cc036b5f3368556159c03ba11a0 Mon Sep 17 00:00:00 2001
From: Alan Knowles <alan@roojs.com>
Date: Tue, 18 Oct 2016 16:11:34 +0800
Subject: [PATCH] ux/Showdown.js

---
 ux/Showdown.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/ux/Showdown.js b/ux/Showdown.js
index 18eee4f213..af8927d06d 100644
--- a/ux/Showdown.js
+++ b/ux/Showdown.js
@@ -885,6 +885,31 @@ Roo.ux.Showdown.converter = function() {
             // attacklab: strip sentinel
             text = text.replace(/~0/,"");
     
+    
+      
+            text += '~0';
+          
+            text = text.replace(/(?:^|\n)```(.*)\n([\s\S]*?)\n```/g, function (wholeMatch, language, codeblock) {
+                    var end =  '\n';
+                
+                    // First parse the github code block
+                    codeblock =  _EncodeCode( codeblock); 
+                    codeblock =  _Detab(codeblock);
+                    codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines
+                    codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing whitespace
+                
+                    codeblock = '<pre><code' + (language ? ' class="' + language + ' language-' + language + '"' : '') + '>' + codeblock + end + '</code></pre>';
+                
+                    return hashBlock(codeblock) + nextChar;
+            });
+          
+            // attacklab: strip sentinel
+            text = text.replace(/~0/, '');
+
+        
+    
+    
+    
             return text;
     }
     
-- 
2.39.2