From 88cbee758e827b9b3a1c9a6be61f1fc3d65b6575 Mon Sep 17 00:00:00 2001
From: daurnimator <quae@daurnimator.com>
Date: Tue, 23 Jul 2013 18:54:07 -0400
Subject: [PATCH 1/1] src/timetable: Add rfc_3339 method

---
 src/timetable.lua | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/timetable.lua b/src/timetable.lua
index 9b78576..c71c59b 100644
--- a/src/timetable.lua
+++ b/src/timetable.lua
@@ -134,8 +134,14 @@ function timetable_methods:timestamp ( )
 	return timestamp ( unpack_tm ( self ) )
 end
 
+function timetable_methods:rfc_3339 ( )
+	-- %06.4g gives 3 (=6-4+1) digits after decimal
+	return strformat ( "%04u-%02u-%02uT%02u:%02u:%06.4g" , unpack_tm ( self ) )
+end
+
 local timetable_mt = {
 	__index    = timetable_methods ;
+	__tostring = timetable_methods.rfc_3339 ;
 	__eq = function ( a , b )
 		return a:timestamp() < b:timestamp()
 	end ;
-- 
2.39.5