1 files changed, 48 insertions, 0 deletions
diff --git a/vendor/eluceo/ical/src/Eluceo/iCal/Util/ComponentUtil.php b/vendor/eluceo/ical/src/Eluceo/iCal/Util/ComponentUtil.php
new file mode 100644
index 00000000..ca6a2be0
--- /dev/null
+++ b/vendor/eluceo/ical/src/Eluceo/iCal/Util/ComponentUtil.php
@@ -0,0 +1,48 @@
+<?php
+
+/*
+ * This file is part of the eluceo/iCal package.
+ *
+ * (c) Markus Poerschke <markus@eluceo.de>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Eluceo\iCal\Util;
+
+class ComponentUtil
+{
+    /**
+     * Folds a single line.
+     *
+     * According to RFC 2445, all lines longer than 75 characters will be folded
+     *
+     * @link http://www.ietf.org/rfc/rfc2445.txt
+     *
+     * @param $string
+     *
+     * @return array
+     */
+    public static function fold($string)
+    {
+        $lines = array();
+        $array = preg_split('/(?<!^)(?!$)/u', $string);
+
+        $line   = '';
+        $lineNo = 0;
+        foreach ($array as $char) {
+            $charLen = strlen($char);
+            $lineLen = strlen($line);
+            if ($lineLen + $charLen > 75) {
+                $line = ' ' . $char;
+                ++$lineNo;
+            } else {
+                $line .= $char;
+            }
+            $lines[$lineNo] = $line;
+        }
+
+        return $lines;
+    }
+}