From 7ec58485d1cd1d976e901819080ff078d90f4b77 Mon Sep 17 00:00:00 2001
From: Hiroshi Shirosaki <h.shirosaki@gmail.com>
Date: Thu, 14 Jan 2016 17:55:13 +0900
Subject: [PATCH] Fix code block syntax of longer backticks, tildes

---
 syntax/markdown.vim |  4 ++--
 test/syntax.vader   | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index e28644a..7e06471 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -72,9 +72,9 @@ syn match  mkdLineBreak    /  \+$/
 syn region mkdBlockquote   start=/^\s*>/                   end=/$/ contains=mkdLineBreak,mkdLineContinue,@Spell
 syn region mkdCode         start=/\(\([^\\]\|^\)\\\)\@<!`/ end=/\(\([^\\]\|^\)\\\)\@<!`/
 syn region mkdCode         start=/\s*``[^`]*/              end=/[^`]*``\s*/
-syn region mkdCode         start=/^\s*```\s*[0-9A-Za-z_+-]*\s*$/          end=/^\s*```\s*$/
+syn region mkdCode         start=/^\s*\z(`\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/          end=/^\s*\z1`*\s*$/
 syn region mkdCode         start=/\s*\~\~[^\~]*/              end=/[^\~]*\~\~\s*/
-syn region mkdCode         start=/^\s*\~\~\~\s*[0-9A-Za-z_+-]*\s*$/          end=/^\s*\~\~\~\s*$/
+syn region mkdCode         start=/^\s*\z(\~\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/         end=/^\s*\z1\~*\s*$/
 syn region mkdCode         start="<pre[^>]*>"              end="</pre>"
 syn region mkdCode         start="<code[^>]*>"             end="</code>"
 syn region mkdFootnote     start="\[^"                     end="\]"
diff --git a/test/syntax.vader b/test/syntax.vader
index 105e595..ebd197e 100644
--- a/test/syntax.vader
+++ b/test/syntax.vader
@@ -167,6 +167,22 @@ code
 Execute (code blocks can be fenced with tildes):
   AssertEqual SyntaxOf('c'), 'mkdCode'
 
+Given markdown;
+~~~~
+code
+~~~~~
+
+Execute (code blocks can be fenced with tildes longer than 3):
+  AssertEqual SyntaxOf('c'), 'mkdCode'
+
+Given markdown;
+````
+code
+`````
+
+Execute (code blocks can be fenced with backticks longer than 3):
+  AssertEqual SyntaxOf('c'), 'mkdCode'
+
 Given markdown;
 ~~~ruby
 code
-- 
2.39.5