From a99f492488da19bf7a18adf09abaaac1ec07e2fb Mon Sep 17 00:00:00 2001
From: Nicola Fontana <ntd@entidi.it>
Date: Thu, 28 Mar 2013 16:36:39 +0100
Subject: [PATCH] piston: improved suffix handling

Avoid to pick the greedest suffix (such as "pdf.png" in a.pdf.png) but
take the shortest ending one ("png").
---
 piston.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/piston.lua b/piston.lua
index c4533fe..7a365b7 100644
--- a/piston.lua
+++ b/piston.lua
@@ -297,7 +297,7 @@ generator.view = {}
 -- Inject the export method into Adg.Canvas
 rawset(Adg.Canvas, 'export', function (canvas, file, format)
     -- The not explicitely set, the export format is guessed from the file suffix
-    if not format then format = file:match('%.(.*)$') end
+    if not format then format = file:match('%.([^.]+)$') end
 
     local size = canvas:get_size()
     size.x = size.x + canvas:get_left_margin() + canvas:get_right_margin()
-- 
2.11.4.GIT