From fbe9281190682ca7c2523c3307c91c09698a14a2 Mon Sep 17 00:00:00 2001
From: Daniel Hahler <git@thequod.de>
Date: Tue, 12 Nov 2013 04:14:20 +0100
Subject: [PATCH] Escape `#` and `%` passed to &grepprg

Fixes #67
---
 plugin/ack.vim | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plugin/ack.vim b/plugin/ack.vim
index d898b3a0..ff97f5da 100644
--- a/plugin/ack.vim
+++ b/plugin/ack.vim
@@ -52,7 +52,9 @@ function! s:Ack(cmd, args)
   try
     let &grepprg=g:ackprg
     let &grepformat=g:ackformat
-    silent execute a:cmd . " " . escape(l:grepargs, '|')
+    " NOTE: we escape special chars, but not everything using shellescape to
+    "       allow for passing arguments etc
+    silent execute a:cmd . " " . escape(l:grepargs, '|#%')
   finally
     let &grepprg=grepprg_bak
     let &grepformat=grepformat_bak