From ef006fd1b58e7c7a40c233f27b5efc0a10e7a840 Mon Sep 17 00:00:00 2001
From: James Emerton <james@emerton.info>
Date: Sun, 5 Oct 2014 10:06:22 -0700
Subject: [PATCH] Automatically format CAL-ADDRESS with mailto: prefix

---
 lib/types.js       | 7 ++++++-
 spec/types-spec.js | 7 +++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/types.js b/lib/types.js
index 2025c56..2af4fd7 100644
--- a/lib/types.js
+++ b/lib/types.js
@@ -50,7 +50,12 @@ var _types = {
         }
     },
     'CAL-ADDRESS': {
-        format: function(value) { return value.toString(); }
+        format: function(value) {
+            var v = value.toString();
+            if(v.lastIndexOf("mailto:") != 0)
+                v = "mailto:"+v;
+            return v;
+        }
     },
     'DATE': {
         format: function(value) {
diff --git a/spec/types-spec.js b/spec/types-spec.js
index e43a3cd..23965c7 100644
--- a/spec/types-spec.js
+++ b/spec/types-spec.js
@@ -60,6 +60,13 @@ describe('iCalendar type formatters and parsers', function() {
 
     });
 
+    it('automatically prepends mailto: for CAL-ADDRESS properties', function() {
+        expect(icalendar.format_value('CAL-ADDRESS', 'bob@example.com'))
+            .toEqual('mailto:bob@example.com');
+        expect(icalendar.format_value('CAL-ADDRESS', 'mailto:bob@example.com'))
+            .toEqual('mailto:bob@example.com');
+    });
+
     it('value parsers', function() {
         assert.equal('\u0000\u0001\u0002\u0004\u0005\u0006',
             icalendar.parse_value('BINARY', 'AAECBAUG'));