From 0b98f6132ed54c4d5fe356e071e88570db20de6a Mon Sep 17 00:00:00 2001
From: Frans-Jan van Steenbeek <frans-jan@van-steenbeek.net>
Date: Tue, 15 Oct 2013 14:49:01 +0200
Subject: [PATCH] Add highlighting for trailing whitespace Double spaces are
 used in markdown to trigger a hard linebreak

---
 syntax/markdown.vim | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index 3024f2f..fda6c8c 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -92,6 +92,7 @@ if main_syntax ==# 'markdown'
 endif
 
 syn match markdownEscape "\\[][\\`*_{}()#+.!-]"
+syn match markdownImplicitBreak "\s*\ \ $" containedin=ALL
 syn match markdownError "\w\@<=_\w\@="
 
 hi def link markdownH1                    htmlH1
@@ -123,6 +124,7 @@ hi def link markdownBoldItalic            htmlBoldItalic
 hi def link markdownCodeDelimiter         Delimiter
 
 hi def link markdownEscape                Special
+hi def      markdownImplicitBreak         ctermbg=darkgreen guibg=lightgreen
 hi def link markdownError                 Error
 
 let b:current_syntax = "markdown"