<?php

/**

 * Smarty plugin

 *

 * @package    Smarty

 * @subpackage PluginsModifier

 */

/**

 * Smarty date_format modifier plugin

 * Type:     modifier<br>

 * Name:     date_format<br>

 * Purpose:  format datestamps via strftime<br>

 * Input:<br>

 *          - string: input date string

 *          - format: strftime format for output

 *          - default_date: default date if $string is empty

 *

 * @link   http://www.smarty.net/manual/en/language.modifier.date.format.php date_format (Smarty online manual)

 * @author Monte Ohrt <monte at ohrt dot com>

 *

 * @param string $string input date string

 * @param string $format strftime format for output

 * @param string $default_date default date if $string is empty

 * @param string $formatter either 'strftime' or 'auto'

 *

 * @return string |void

 * @uses   smarty_make_timestamp()

 */

function smarty_modifier_date_format($string, $format = null, $default_date = '', $formatter = 'auto') {

    if ($format === null) {

        $format = Smarty::$_DATE_FORMAT;

    }

    /**

     * require_once the {@link shared.make_timestamp.php} plugin

     */

    require_once(SMARTY_PLUGINS_DIR . 'shared.make_timestamp.php');

    if ($string != '' && $string != '0000-00-00' && $string != '0000-00-00 00:00:00') {

        $timestamp = smarty_make_timestamp($string);

    } elseif ($default_date != '') {

        $timestamp = smarty_make_timestamp($default_date);

    } else {

        return;

    }

    if ($formatter == 'strftime' || ($formatter == 'auto' && strpos($format, '%') !== false)) {

        if (DS == '\\') {

            $_win_from = array('%D', '%h', '%n', '%r', '%R', '%t', '%T');

            $_win_to = array('%m/%d/%y', '%b', "\n", '%I:%M:%S %p', '%H:%M', "\t", '%H:%M:%S');

            if (strpos($format, '%e') !== false) {

                $_win_from[] = '%e';

                $_win_to[] = sprintf('%\' 2d', date('j', $timestamp));

            }

            if (strpos($format, '%l') !== false) {

                $_win_from[] = '%l';

                $_win_to[] = sprintf('%\' 2d', date('h', $timestamp));

            }

            $format = str_replace($_win_from, $_win_to, $format);

        }

        return strftime($format, $timestamp);

    } else {

        return date($format, $timestamp);

    }

}