From 9059cb87f4e521894e2a61de1e27eb7f074a0781 Mon Sep 17 00:00:00 2001
From: Tommy Allen <tommy@esdf.io>
Date: Wed, 8 Jun 2016 15:52:10 -0400
Subject: [PATCH] Basic support for Wiki images

---
 grip/renderers.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/grip/renderers.py b/grip/renderers.py
index 3459947..377304c 100644
--- a/grip/renderers.py
+++ b/grip/renderers.py
@@ -1,5 +1,6 @@
 from __future__ import print_function, unicode_literals
 
+import os
 import re
 import json
 import sys
@@ -124,7 +125,11 @@ def wiki_url(match):
             url = match.group(2) or match.group(1)
             url = re.sub(r'[\s\+]', '-', url)
             url = re.sub(r'[^a-z0-9\-_]', urlencode, url)
-            return '[{0}]({1})'.format(match.group(1), url)
+            md = '[{0}]({1})'.format(match.group(1), url)
+            ext = os.path.splitext(url)[1]
+            if ext and ext in ('.jpg', '.jpeg', '.png', '.gif'):
+                return '!' + md
+            return md
 
         return re.sub(r'\[\[([^\]\|]+)(?:\|([^\]]+))?\]\]', wiki_url, text)