From b2b6dd4d5142be193ed12b0a561dc3361b89d14a Mon Sep 17 00:00:00 2001
From: premek <premysl.vyhnal@gmail.com>
Date: Sat, 31 Dec 2016 15:02:22 +0100
Subject: [PATCH] error opening file

---
 pink/pink.lua | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pink/pink.lua b/pink/pink.lua
index 09c8e3e..ae80c21 100644
--- a/pink/pink.lua
+++ b/pink/pink.lua
@@ -5,6 +5,7 @@ local runtime = require(folderOfThisFile .. 'runtime')
 
 local function read(file)
     local f = io.open(file, "rb")
+    if not f then error('failed to open "'..file..'"') end
     local content = f:read("*all")
     f:close()
     return content