<?php

/* ========================================================================
 *
 * @license This source file is subject to version 3.01 of the PHP license,
 *      		that is available at http://www.php.net/license/3_01.txt
 *      		If you did not receive a copy of the PHP license and are unable 
 *      		to obtain it through the world-wide-web, please send a note to 
 *      		license@php.net so we can mail you a copy immediately.  
 *
 * @category   Application of MyNETS
 * @project    OpenPNE UsagiProject 2006-2007
 * @package    MyNETS
 * @author     UsagiProject <info@usagi.mynets.jp>
 * @copyright  2006-2007 UsagiProject <author member ad http://usagi.mynets.jp/member.html>
 * @version    MyNETS,v 1.0.0
 * @since      File available since Release 1.0.0 Nighty
 * @chengelog  [2007/02/17] Ver1.1.0Nighty package
 * ======================================================================== 
 */

/**
 * Smarty t_url2aa modifier plugin
 *
 * @param  string $string
 * @return string
 */
function smarty_modifier_t_url2aa($string)
{
    // "(&quot;) と '(&#039;) を元に戻す
    $search = array('&quot;', '&#039;');
    $replace = array('"', "'");
    $string = str_replace($search, $replace, $string);

    $url_pattern = '/https?:\/\/[\w\-.,:;\~\^\/?\@&=+\$%#!()*]+/';
    return preg_replace_callback($url_pattern, 'smarty_modifier_t_url2aa_callback', $string);
}

function smarty_modifier_t_url2aa_callback($matches)
{
    return pne_url2aa($matches[0]);
}

function pne_url2aa($url, $target = '_blank')
{
    $length = 60;
    $etc = '...';

    $search = array('&amp;', '%2b');
    $replace = array('&', "+");
    $url = str_replace($search, $replace, $url);

    if (strlen($url) > $length) {
        $length -= strlen($etc);
        $urlstr = substr($url, 0, $length) . $etc;
    } else {
        $urlstr = $url;
    }
    if ($target) {
        $target = sprintf(' target="%s"', $target);
    }
    return sprintf('<a href="t.php?%s"%s>%s</a>', $url, $target, $urlstr);
}

?>
