From f996b9c27ba193db7f986d229c2736ccf7fe9791 Mon Sep 17 00:00:00 2001
From: Jez Ng <me@jezng.com>
Date: Thu, 24 Jul 2014 08:35:22 +0800
Subject: [PATCH] Avoid highlighting if someone else has already done it.

---
 syntax/haskell.vim | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/syntax/haskell.vim b/syntax/haskell.vim
index bc3ba77..3eb74eb 100644
--- a/syntax/haskell.vim
+++ b/syntax/haskell.vim
@@ -1,5 +1,8 @@
-syntax clear
+if exists('b:current_syntax')
+  finish
+endif
 
+syntax clear
 
 call vim2hs#letdefault('g:haskell_haddock'              , 0)
 call vim2hs#letdefault('g:haskell_ffi'                  , 1)