From eee7a3b3989bc58ee2f32159dd5a23b9df01e380 Mon Sep 17 00:00:00 2001
From: Jens Kraemer <jk@jkraemer.net>
Date: Tue, 29 Oct 2019 01:51:26 +0000
Subject: [PATCH] eases the regexp used to determine the start of a code block

- code blocks in markdown with one or more spaces before the language
tag render perfectly fine and thus should not break the sections
parsing.
---
 lib/redmine/wiki_formatting/markdown/formatter.rb                | 2 +-
 test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/redmine/wiki_formatting/markdown/formatter.rb b/lib/redmine/wiki_formatting/markdown/formatter.rb
index 9082c3658..f4dd56452 100644
--- a/lib/redmine/wiki_formatting/markdown/formatter.rb
+++ b/lib/redmine/wiki_formatting/markdown/formatter.rb
@@ -90,7 +90,7 @@ module Redmine
           inside_pre = false
           @text.split(/(^(?:.+\r?\n\r?(?:\=+|\-+)|#+.+|(?:~~~|```).*)\s*$)/).each do |part|
             level = nil
-            if part =~ /\A(~{3,}|`{3,})(\S+)?\s*$/
+            if part =~ /\A(~{3,}|`{3,})(\s*\S+)?\s*$/
               if !inside_pre
                 inside_pre = true
               elsif !$2
diff --git a/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb b/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb
index 23d785901..be667c890 100644
--- a/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb
@@ -142,6 +142,11 @@ EXPECTED
 
       Morbi facilisis accumsan orci non pharetra.
 
+      ~~~ ruby
+      def foo
+      end
+      ~~~
+
       ```
       Pre Content:
 
-- 
2.11.0