<?php

/**
 * LMS version 1.11-git
 *
 *  (C) Copyright 2001-2019 LMS Developers
 *
 *  Please, see the doc/AUTHORS for more information about authors!
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License Version 2 as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 *  USA.
 *
 *  $Id$
 */

function smarty_modifier_message_quote($text)
{
    $result = '';
    $lines = explode('<br>', $text);
    $linecount = count($lines);
    $quote = 0;
    $lineidx = 0;
    foreach ($lines as $line) {
        $newquote = 0;
        while (strpos($line, '&gt;') === 0) {
            $line = substr($line, 5);
            $newquote++;
        }
        if ($newquote > $quote) {
            $result .= str_repeat('<blockquote class="lms-ui-message-quote">', $newquote - $quote);
        } elseif ($newquote < $quote) {
            $result .= str_repeat('</blockquote>', $quote - $newquote);
        }
        $result .= $line;
        if ($lineidx < $linecount - 1) {
            $result .= '<br>';
        }
        $quote = $newquote;
    }

    return $result;
}
