36 lines
998 B
PHP
36 lines
998 B
PHP
<?php
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/**
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* functions/decode/us_ascii.php
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*
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* This file contains us-ascii decoding function that is needed to read
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* us-ascii encoded mails in non-us-ascii locale.
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*
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* Function replaces all 8bit symbols with '?' marks
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*
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* @copyright 2004-2025 The SquirrelMail Project Team
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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* @version $Id$
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* @package squirrelmail
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* @subpackage decode
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*/
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/**
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* us-ascii decoding function.
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*
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* @param string $string string that has to be cleaned
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* @return string cleaned string
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*/
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function charset_decode_us_ascii ($string) {
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// don't do decoding when there are no 8bit symbols
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if (! sq_is8bit($string,'us-ascii'))
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return $string;
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$string = preg_replace("/([\201-\237])/","'?'",$string);
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/* I don't want to use 0xA0 (\240) in any ranges. RH73 may dislike it */
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$string = str_replace("\240", '?', $string);
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$string = preg_replace("/([\241-\377])/","'?'",$string);
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return $string;
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}
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