--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/program/lib/Roundcube/rcube_enriched.php	Thu Jan 04 15:52:31 2018 -0500
@@ -0,0 +1,150 @@
+<?php
+
+/**
+ +-----------------------------------------------------------------------+
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2005-2012, The Roundcube Dev Team                       |
+ |                                                                       |
+ | Licensed under the GNU General Public License version 3 or            |
+ | any later version with exceptions for skins & plugins.                |
+ | See the README file for a full license statement.                     |
+ |                                                                       |
+ | PURPOSE:                                                              |
+ |   Helper class to convert Enriched to HTML format (RFC 1523, 1896)    |
+ +-----------------------------------------------------------------------+
+ | Author: Aleksander Machniak <alec@alec.pl>                            |
+ | Author: Ryo Chijiiwa (IlohaMail)                                      |
+ +-----------------------------------------------------------------------+
+*/
+
+/**
+ * Class for Enriched to HTML conversion
+ *
+ * @package    Framework
+ * @subpackage Utils
+ */
+class rcube_enriched
+{
+    protected static function convert_newlines($body)
+    {
+        // remove single newlines, convert N newlines to N-1
+        $body = str_replace("\r\n", "\n", $body);
+        $len  = strlen($body);
+        $nl   = 0;
+        $out  = '';
+
+        for ($i=0; $i<$len; $i++) {
+            $c = $body[$i];
+            if (ord($c) == 10)
+                $nl++;
+            if ($nl && ord($c) != 10)
+                $nl = 0;
+            if ($nl != 1)
+                $out .= $c;
+            else
+                $out .= ' ';
+        }
+
+        return $out;
+    }
+
+    protected static function convert_formatting($body)
+    {
+        $replace = array(
+            '<bold>'        => '<b>',            '</bold>'   => '</b>',
+            '<italic>'      => '<i>',            '</italic>' => '</i>',
+            '<fixed>'       => '<tt>',           '</fixed>'  => '</tt>',
+            '<smaller>'     => '<font size=-1>', '</smaller>'=> '</font>',
+            '<bigger>'      => '<font size=+1>', '</bigger>' => '</font>',
+            '<underline>'   => '<span style="text-decoration: underline">', '</underline>'   => '</span>',
+            '<flushleft>'   => '<span style="text-align: left">',           '</flushleft>'   => '</span>',
+            '<flushright>'  => '<span style="text-align: right">',          '</flushright>'  => '</span>',
+            '<flushboth>'   => '<span style="text-align: justified">',      '</flushboth>'   => '</span>',
+            '<indent>'      => '<span style="padding-left: 20px">',         '</indent>'      => '</span>',
+            '<indentright>' => '<span style="padding-right: 20px">',        '</indentright>' => '</span>',
+        );
+
+        return str_ireplace(array_keys($replace), array_values($replace), $body);
+    }
+
+    protected static function convert_font($body)
+    {
+        $pattern = '/(.*)\<fontfamily\>\<param\>(.*)\<\/param\>(.*)\<\/fontfamily\>(.*)/ims';
+
+        while (preg_match($pattern, $body, $a)) {
+            if (count($a) != 5)
+                continue;
+
+            $body = $a[1].'<span style="font-family: '.$a[2].'">'.$a[3].'</span>'.$a[4];
+        }
+
+        return $body;
+    }
+
+    protected static function convert_color($body)
+    {
+        $pattern = '/(.*)\<color\>\<param\>(.*)\<\/param\>(.*)\<\/color\>(.*)/ims';
+
+        while (preg_match($pattern, $body, $a)) {
+            if (count($a) != 5)
+                continue;
+
+            // extract color (either by name, or ####,####,####)
+            if (strpos($a[2],',')) {
+                $rgb   = explode(',',$a[2]);
+                $color = '#';
+                for ($i=0; $i<3; $i++)
+                    $color .= substr($rgb[$i], 0, 2); // just take first 2 bytes
+            }
+            else {
+                $color = $a[2];
+            }
+
+            // put it all together
+            $body = $a[1].'<span style="color: '.$color.'">'.$a[3].'</span>'.$a[4];
+        }
+
+        return $body;
+    }
+
+    protected static function convert_excerpt($body)
+    {
+        $pattern = '/(.*)\<excerpt\>(.*)\<\/excerpt\>(.*)/i';
+
+        while (preg_match($pattern, $body, $a)) {
+            if (count($a) != 4)
+                continue;
+
+            $quoted = '';
+            $lines  = explode('<br>', $a[2]);
+
+            foreach ($lines as $line)
+                $quoted .= '&gt;'.$line.'<br>';
+
+            $body = $a[1].'<span class="quotes">'.$quoted.'</span>'.$a[3];
+        }
+
+        return $body;
+    }
+
+    /**
+     * Converts Enriched text into HTML format
+     *
+     * @param string $body Enriched text
+     *
+     * @return string HTML text
+     */
+    public static function to_html($body)
+    {
+        $body = str_replace('<<','&lt;',$body);
+        $body = self::convert_newlines($body);
+        $body = str_replace("\n", '<br>', $body);
+        $body = self::convert_formatting($body);
+        $body = self::convert_color($body);
+        $body = self::convert_font($body);
+        $body = self::convert_excerpt($body);
+        //$body = nl2br($body);
+
+        return $body;
+    }
+}