<?php
+
/**
* us_ascii encoding functions
*
* takes a string of unicode entities and converts it to a us-ascii encoded string
* Unsupported characters are replaced with ?.
*
+ * @copyright 2004-2017 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id$
- * @copyright Copyright © SquirrelMail Development Team, 2004
* @package squirrelmail
* @subpackage encode
*/
// don't run encoding function, if there is no encoded characters
if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
- $string=preg_replace("/&#([0-9]+);/e","unicodetousascii('\\1')",$string);
- // $string=preg_replace("/&#[xX]([0-9A-F]+);/e","unicodetousascii(hexdec('\\1'))",$string);
+ $string=preg_replace_callback("/&#([0-9]+);/",'unicodetousascii',$string);
return $string;
}
* Return us-ascii symbol when unicode character number is provided
*
* This function is used internally by charset_encode_us_ascii
- * function. It might be unavailable to other squirrelmail functions.
+ * function. It might be unavailable to other SquirrelMail functions.
* Don't use it or make sure, that functions/encode/us_ascii.php is
* included.
*
- * @param int $var decimal unicode value
+ * @param array $matches array with first element a decimal unicode value
* @return string us-ascii character
*/
-function unicodetousascii($var) {
+function unicodetousascii($matches) {
+ $var = $matches[1];
if ($var < 128) {
$ret = chr ($var);
}
return $ret;
}
-?>
\ No newline at end of file