From 9932ca6ce7ba746e1f3dd290d5fad64aec20444d Mon Sep 17 00:00:00 2001
From: Theodore Schnepper <tschnepp@Theodores-MacBook-Pro.local>
Date: Tue, 16 Jan 2018 19:14:03 -0700
Subject: [PATCH] Modify PROPERTY toICS method to create a maximum line length
 of 75.

---
 lib/vobject/property.js  | 12 ++++++++++--
 package.json             | 10 +++++-----
 test/vobject/property.js |  6 +++++-
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/lib/vobject/property.js b/lib/vobject/property.js
index 2946523..08d9dcc 100644
--- a/lib/vobject/property.js
+++ b/lib/vobject/property.js
@@ -70,10 +70,18 @@ module.exports = function(name, value, parameters) {
 
     var line = ics.join('');
 
+    // Only the first line should be trimmed to 75
+    // every other line should be trimmed to 74
     var lines = [];
-    for (var i = 0; i < Math.ceil(line.length / 75); i++) {
-      var part = line.substring(i * 75, Math.min((i + 1) * 75, line.length));
+    var lineCount = Math.ceil(Math.max(0, line.length - 75) / 74) + 1;
+    for (var i = 0, o = 0; i < lineCount; i++) {
+      var offset = 74;
+      if (i === 0) {
+        offset = 75;
+      }
+      var part = line.substring(o, Math.min(o + offset, line.length));
       lines.push(part);
+      o += offset;
     }
     return lines.join('\r\n ');
   };
diff --git a/package.json b/package.json
index 928e254..3b3df71 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "vobject",
   "description": "iCalendar VObject Manipulation in NodeJS",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "author": {
     "name": "Microsoft Outlook"
   },
@@ -21,13 +21,13 @@
     "url": "https://github.com/outlook/vobject-js/issues"
   },
   "dependencies": {
-    "moment-timezone": "0.5.10",
+    "moment-timezone": "^0.5.14",
     "underscore": "1.8.3"
   },
   "devDependencies": {
-    "mocha": "3.2.0",
-    "jshint": "2.9.4",
-    "nsp": "2.6.2"
+    "jshint": "^2.9.5",
+    "mocha": "^4.1.0",
+    "nsp": "^3.1.0"
   },
   "scripts": {
     "jshint": "./node_modules/.bin/jshint index.js lib/* test/*",
diff --git a/test/vobject/property.js b/test/vobject/property.js
index 53071c9..e94762b 100644
--- a/test/vobject/property.js
+++ b/test/vobject/property.js
@@ -140,7 +140,11 @@ describe('lib/vobject/property.js', function() {
 
     it('should fold at 75 characters', function() {
       var property = vobject.property('DESCRIPTION', 'Interactive Telecommunications Program\\nTisch School of the Arts\\nNew York University\\n721 Broadway\\, 4th Floor\\, South Elevators\\nNew York NY 10003\\n\\nTake the left elevators to the 4th Floor\\nThis event is free and open to the public\\nNo need to RSVP');
-      assert.equal(property.toICS(), 'DESCRIPTION:Interactive Telecommunications Program\\nTisch School of the Art\r\n s\\nNew York University\\n721 Broadway\\, 4th Floor\\, South Elevators\\nNew Yor\r\n k NY 10003\\n\\nTake the left elevators to the 4th Floor\\nThis event is free \r\n and open to the public\\nNo need to RSVP');
+      assert.equal(property.toICS(), 'DESCRIPTION:Interactive Telecommunications Program\\nTisch School of the Art\r\n s\\nNew York University\\n721 Broadway\\, 4th Floor\\, South Elevators\\nNew Yo\r\n rk NY 10003\\n\\nTake the left elevators to the 4th Floor\\nThis event is fre\r\n e and open to the public\\nNo need to RSVP');
+
+      property.toICS().split('\r\n').forEach(function(s) {
+        return assert.equal(s.length <= 75, true);
+      });
     });
   });
 });