squirrelmail/functions/decode/iso8859-7.php

<?php
/**
 * decode/iso8859-7.php
 * $Id$
 *
 * Copyright (c) 2003 The SquirrelMail Project Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * This file contains iso-8859-7 decoding function that is needed to read
 * iso-8859-7 encoded mails in non-iso-8859-7 locale.
 * 
 * Original data taken from:
 *  ftp://ftp.unicode.org/Public/MAPPINGS/ISO8859/8859-7.TXT
 *
 *   Name:             ISO 8859-7:1987 to Unicode
 *   Unicode version:  3.0
 *   Table version:    1.0
 *   Table format:     Format A
 *   Date:             1999 July 27
 *   Authors:          Ken Whistler <kenw@sybase.com>
 *
 * Original copyright:
 *	Copyright (c) 1999 Unicode, Inc.  All Rights reserved.
 *
 *	This file is provided as-is by Unicode, Inc. (The Unicode Consortium).
 *	No claims are made as to fitness for any particular purpose.  No
 *	warranties of any kind are expressed or implied.  The recipient
 *	agrees to determine applicability of information provided.  If this
 *	file has been provided on optical media by Unicode, Inc., the sole
 *	remedy for any claim will be exchange of defective media within 90
 *	days of receipt.
 *
 *	Unicode, Inc. hereby grants the right to freely use the information
 *	supplied in this file in the creation of products supporting the
 *	Unicode Standard, and to make copies of this file in any form for
 *	internal or external distribution as long as this notice remains
 *	attached.
 * @package squirrelmail
 * @subpackage decode
 */

/**
 * Decode iso8859-7 encoded strings
 * @param string $string Encoded string
 * @return string $string Decoded string
 */
function charset_decode_iso8859_7 ($string) {
    global $default_charset;

    if (strtolower($default_charset) == 'iso-8859-7')
        return $string;

    /* Only do the slow convert if there are 8-bit characters */
    /* there is no 0x80-0x9F letters in ISO8859-* */
    if ( ! ereg("[\241-\377]", $string) )
        return $string;

    $iso8859_7 = array(
	"\xA0" => '&#160;',
	"\xA1" => '&#8216;',
	"\xA2" => '&#8217;',
	"\xA3" => '&#163;',
	"\xA6" => '&#166;',
	"\xA7" => '&#167;',
	"\xA8" => '&#168;',
	"\xA9" => '&#169;',
	"\xAB" => '&#171;',
	"\xAC" => '&#172;',
	"\xAD" => '&#173;',
	"\xAF" => '&#8213;',
	"\xB0" => '&#176;',
	"\xB1" => '&#177;',
	"\xB2" => '&#178;',
	"\xB3" => '&#179;',
	"\xB4" => '&#900;',
	"\xB5" => '&#901;',
	"\xB6" => '&#902;',
	"\xB7" => '&#183;',
	"\xB8" => '&#904;',
	"\xB9" => '&#905;',
	"\xBA" => '&#906;',
	"\xBB" => '&#187;',
	"\xBC" => '&#908;',
	"\xBD" => '&#189;',
	"\xBE" => '&#910;',
	"\xBF" => '&#911;',
	"\xC0" => '&#912;',
	"\xC1" => '&#913;',
	"\xC2" => '&#914;',
	"\xC3" => '&#915;',
	"\xC4" => '&#916;',
	"\xC5" => '&#917;',
	"\xC6" => '&#918;',
	"\xC7" => '&#919;',
	"\xC8" => '&#920;',
	"\xC9" => '&#921;',
	"\xCA" => '&#922;',
	"\xCB" => '&#923;',
	"\xCC" => '&#924;',
	"\xCD" => '&#925;',
	"\xCE" => '&#926;',
	"\xCF" => '&#927;',
	"\xD0" => '&#928;',
	"\xD1" => '&#929;',
	"\xD3" => '&#931;',
	"\xD4" => '&#932;',
	"\xD5" => '&#933;',
	"\xD6" => '&#934;',
	"\xD7" => '&#935;',
	"\xD8" => '&#936;',
	"\xD9" => '&#937;',
	"\xDA" => '&#938;',
	"\xDB" => '&#939;',
	"\xDC" => '&#940;',
	"\xDD" => '&#941;',
	"\xDE" => '&#942;',
	"\xDF" => '&#943;',
	"\xE0" => '&#944;',
	"\xE1" => '&#945;',
	"\xE2" => '&#946;',
	"\xE3" => '&#947;',
	"\xE4" => '&#948;',
	"\xE5" => '&#949;',
	"\xE6" => '&#950;',
	"\xE7" => '&#951;',
	"\xE8" => '&#952;',
	"\xE9" => '&#953;',
	"\xEA" => '&#954;',
	"\xEB" => '&#955;',
	"\xEC" => '&#956;',
	"\xED" => '&#957;',
	"\xEE" => '&#958;',
	"\xEF" => '&#959;',
	"\xF0" => '&#960;',
	"\xF1" => '&#961;',
	"\xF2" => '&#962;',
	"\xF3" => '&#963;',
	"\xF4" => '&#964;',
	"\xF5" => '&#965;',
	"\xF6" => '&#966;',
	"\xF7" => '&#967;',
	"\xF8" => '&#968;',
	"\xF9" => '&#969;',
	"\xFA" => '&#970;',
	"\xFB" => '&#971;',
	"\xFC" => '&#972;',
	"\xFD" => '&#973;',
	"\xFE" => '&#974;'
    );

    $string = str_replace(array_keys($iso8859_7), array_values($iso8859_7), $string);

    return $string;
}

?>