--- /dev/null
+<?php
+
+/**
+ * functions/decode/ns_4551_1.php
+ *
+ * Copyright (c) 2004 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * This file contains ns_4551-1 decoding function that is needed to read
+ * ns_4551-1 encoded mails in non-ns_4551-1 locale.
+ *
+ * This is the same as ISO-646-NO and is used by some
+ * Microsoft programs when sending Norwegian characters
+ *
+ * $Id$
+ * @package squirrelmail
+ * @subpackage decode
+ */
+
+/**
+ * ns_4551_1 decoding function
+ *
+ * @param string $string
+ * @return string
+ */
+function charset_decode_ns_4551_1 ($string) {
+ /*
+ * These characters are:
+ * Latin capital letter AE
+ * Latin capital letter O with stroke
+ * Latin capital letter A with ring above
+ * and the same as small letters
+ */
+ return strtr ($string, "[\\]{|}", "ÆØÅæøå");
+}
+?>
\ No newline at end of file
--- /dev/null
+<?php
+
+/**
+ * functions/decode/us_ascii.php
+ *
+ * Copyright (c) 2004 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * This file contains us-ascii decoding function that is needed to read
+ * us-ascii encoded mails in non-us-ascii locale.
+ *
+ * Function replaces all 8bit symbols with '?' marks
+ *
+ * $Id$
+ * @package squirrelmail
+ * @subpackage decode
+ */
+
+/**
+ * us-ascii decoding function.
+ *
+ * @param string $string string that has to be cleaned
+ * @return string cleaned string
+ */
+function charset_decode_us_ascii ($string) {
+ global $default_charset;
+
+ if (strtolower($default_charset) == 'us-ascii')
+ return $string;
+
+ if (! ereg("[\200-\237]", $string) and ! ereg("[\241-\377]", $string) )
+ return $string;
+
+ $string = preg_replace("/([\201-\237])/e","'?'",$string);
+
+ /* I don't want to use 0xA0 (\240) in any ranges. RH73 may dislike it */
+ $string = str_replace("\240", '?', $string);
+
+ $string = preg_replace("/([\241-\377])/e","'?'",$string);
+ return $string;
+}
+?>