<?php

/**

 * Smarty shared plugin

 *

 * @package    Smarty

 * @subpackage PluginsShared

 */

/**

 * convert characters to their decimal unicode equivalents

 *

 * @link   http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3 for inspiration

 *

 * @param string $string characters to calculate unicode of

 * @param string $encoding encoding of $string, if null mb_internal_encoding() is used

 *

 * @return array sequence of unicodes

 * @author Rodney Rehm

 */

function smarty_mb_to_unicode($string, $encoding = null) {

    if ($encoding) {

        $expanded = mb_convert_encoding($string, "UTF-32BE", $encoding);

    } else {

        $expanded = mb_convert_encoding($string, "UTF-32BE");

    }

    return unpack("N*", $expanded);

}

/**

 * convert unicodes to the character of given encoding

 *

 * @link   http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3 for inspiration

 *

 * @param integer|array $unicode single unicode or list of unicodes to convert

 * @param string $encoding encoding of returned string, if null mb_internal_encoding() is used

 *

 * @return string unicode as character sequence in given $encoding

 * @author Rodney Rehm

 */

function smarty_mb_from_unicode($unicode, $encoding = null) {

    $t = '';

    if (!$encoding) {

        $encoding = mb_internal_encoding();

    }

    foreach ((array)$unicode as $utf32be) {

        $character = pack("N*", $utf32be);

        $t .= mb_convert_encoding($character, $encoding, "UTF-32BE");

    }

    return $t;

}