Show module.lib.iconv_replacement.php syntax highlighted
<?php
// +----------------------------------------------------------------------+
// | PHP version 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 2002-2004 James Heinrich |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2 of the GPL license, |
// | that is bundled with this package in the file license.txt and is |
// | available through the world-wide-web at the following url: |
// | http://www.gnu.org/copyleft/gpl.html |
// +----------------------------------------------------------------------+
// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org |
// +----------------------------------------------------------------------+
// | Authors: James Heinrich <infoØgetid3*org> |
// | Allan Hansen <ahØartemis*dk> |
// +----------------------------------------------------------------------+
// | module.lib.iconv_replacement.php |
// | getID3() library file. |
// | dependencies: NONE, required by getid3.php if no iconv() present. |
// +----------------------------------------------------------------------+
//
// $Id: module.lib.iconv_replacement.php,v 1.3 2006/06/24 22:58:31 ah Exp $
class getid3_iconv_replacement
{
public static function iconv($in_charset, $out_charset, $string) {
if ($in_charset == $out_charset) {
return $string;
}
static $supported_charsets = array (
'ISO-8859-1' => 'iso88591',
'UTF-8' => 'utf8',
'UTF-16BE' => 'utf16be',
'UTF-16LE' => 'utf16le',
'UTF-16' => 'utf16'
);
// Convert
$function_name = 'iconv_' . @$supported_charsets[$in_charset] . '_' . @$supported_charsets[$out_charset];
if (is_callable(array('getid3_iconv_replacement', $function_name))) {
return getid3_iconv_replacement::$function_name($string);
}
// Invalid charset used
if (!@$supported_charsets[$in_charset]) {
throw new getid3_exception('PHP does not have iconv() support - cannot use ' . $in_charset . ' charset.');
}
if (!@$supported_charsets[$out_charset]) {
throw new getid3_exception('PHP does not have iconv() support - cannot use ' . $out_charset . ' charset.');
}
}
public static function iconv_int_utf8($charval) {
if ($charval < 128) {
// 0bbbbbbb
$newcharstring = chr($charval);
} elseif ($charval < 2048) {
// 110bbbbb 10bbbbbb
$newcharstring = chr(($charval >> 6) | 0xC0);
$newcharstring .= chr(($charval & 0x3F) | 0x80);
} elseif ($charval < 65536) {
// 1110bbbb 10bbbbbb 10bbbbbb
$newcharstring = chr(($charval >> 12) | 0xE0);
$newcharstring .= chr(($charval >> 6) | 0xC0);
$newcharstring .= chr(($charval & 0x3F) | 0x80);
} else {
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
$newcharstring = chr(($charval >> 18) | 0xF0);
$newcharstring .= chr(($charval >> 12) | 0xC0);
$newcharstring .= chr(($charval >> 6) | 0xC0);
$newcharstring .= chr(($charval & 0x3F) | 0x80);
}
return $newcharstring;
}
// ISO-8859-1 => UTF-8
public static function iconv_iso88591_utf8($string, $bom=false) {
if (function_exists('utf8_encode')) {
return utf8_encode($string);
}
// utf8_encode() unavailable, use getID3()'s iconv() conversions (possibly PHP is compiled without XML support)
$newcharstring = '';
if ($bom) {
$newcharstring .= "\xEF\xBB\xBF";
}
for ($i = 0; $i < strlen($string); $i++) {
$charval = ord($string{$i});
$newcharstring .= getid3_iconv_replacement::iconv_int_utf8($charval);
}
return $newcharstring;
}
// ISO-8859-1 => UTF-16BE
public static function iconv_iso88591_utf16be($string, $bom=false) {
$newcharstring = '';
if ($bom) {
$newcharstring .= "\xFE\xFF";
}
for ($i = 0; $i < strlen($string); $i++) {
$newcharstring .= "\x00".$string{$i};
}
return $newcharstring;
}
// ISO-8859-1 => UTF-16LE
public static function iconv_iso88591_utf16le($string, $bom=false) {
$newcharstring = '';
if ($bom) {
$newcharstring .= "\xFF\xFE";
}
for ($i = 0; $i < strlen($string); $i++) {
$newcharstring .= $string{$i}."\x00";
}
return $newcharstring;
}
// ISO-8859-1 => UTF-16
public static function iconv_iso88591_utf16($string) {
return getid3_lib::iconv_iso88591_utf16le($string, true);
}
// UTF-8 => ISO-8859-1
public static function iconv_utf8_iso88591($string) {
if (function_exists('utf8_decode')) {
return utf8_decode($string);
}
// utf8_decode() unavailable, use getID3()'s iconv() conversions (possibly PHP is compiled without XML support)
$newcharstring = '';
$offset = 0;
$stringlength = strlen($string);
while ($offset < $stringlength) {
if ((ord($string{$offset}) | 0x07) == 0xF7) {
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x07) << 18) &
((ord($string{($offset + 1)}) & 0x3F) << 12) &
((ord($string{($offset + 2)}) & 0x3F) << 6) &
(ord($string{($offset + 3)}) & 0x3F);
$offset += 4;
} elseif ((ord($string{$offset}) | 0x0F) == 0xEF) {
// 1110bbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) &
((ord($string{($offset + 1)}) & 0x3F) << 6) &
(ord($string{($offset + 2)}) & 0x3F);
$offset += 3;
} elseif ((ord($string{$offset}) | 0x1F) == 0xDF) {
// 110bbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) &
(ord($string{($offset + 1)}) & 0x3F);
$offset += 2;
} elseif ((ord($string{$offset}) | 0x7F) == 0x7F) {
// 0bbbbbbb
$charval = ord($string{$offset});
$offset += 1;
} else {
// error? throw some kind of warning here?
$charval = false;
$offset += 1;
}
if ($charval !== false) {
$newcharstring .= (($charval < 256) ? chr($charval) : '?');
}
}
return $newcharstring;
}
// UTF-8 => UTF-16BE
public static function iconv_utf8_utf16be($string, $bom=false) {
$newcharstring = '';
if ($bom) {
$newcharstring .= "\xFE\xFF";
}
$offset = 0;
$stringlength = strlen($string);
while ($offset < $stringlength) {
if ((ord($string{$offset}) | 0x07) == 0xF7) {
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x07) << 18) &
((ord($string{($offset + 1)}) & 0x3F) << 12) &
((ord($string{($offset + 2)}) & 0x3F) << 6) &
(ord($string{($offset + 3)}) & 0x3F);
$offset += 4;
} elseif ((ord($string{$offset}) | 0x0F) == 0xEF) {
// 1110bbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) &
((ord($string{($offset + 1)}) & 0x3F) << 6) &
(ord($string{($offset + 2)}) & 0x3F);
$offset += 3;
} elseif ((ord($string{$offset}) | 0x1F) == 0xDF) {
// 110bbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) &
(ord($string{($offset + 1)}) & 0x3F);
$offset += 2;
} elseif ((ord($string{$offset}) | 0x7F) == 0x7F) {
// 0bbbbbbb
$charval = ord($string{$offset});
$offset += 1;
} else {
// error? throw some kind of warning here?
$charval = false;
$offset += 1;
}
if ($charval !== false) {
$newcharstring .= (($charval < 65536) ? getid3_lib::BigEndian2String($charval, 2) : "\x00".'?');
}
}
return $newcharstring;
}
// UTF-8 => UTF-16LE
public static function iconv_utf8_utf16le($string, $bom=false) {
$newcharstring = '';
if ($bom) {
$newcharstring .= "\xFF\xFE";
}
$offset = 0;
$stringlength = strlen($string);
while ($offset < $stringlength) {
if ((ord($string{$offset}) | 0x07) == 0xF7) {
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x07) << 18) &
((ord($string{($offset + 1)}) & 0x3F) << 12) &
((ord($string{($offset + 2)}) & 0x3F) << 6) &
(ord($string{($offset + 3)}) & 0x3F);
$offset += 4;
} elseif ((ord($string{$offset}) | 0x0F) == 0xEF) {
// 1110bbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) &
((ord($string{($offset + 1)}) & 0x3F) << 6) &
(ord($string{($offset + 2)}) & 0x3F);
$offset += 3;
} elseif ((ord($string{$offset}) | 0x1F) == 0xDF) {
// 110bbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) &
(ord($string{($offset + 1)}) & 0x3F);
$offset += 2;
} elseif ((ord($string{$offset}) | 0x7F) == 0x7F) {
// 0bbbbbbb
$charval = ord($string{$offset});
$offset += 1;
} else {
// error? maybe throw some warning here?
$charval = false;
$offset += 1;
}
if ($charval !== false) {
$newcharstring .= (($charval < 65536) ? getid3_lib::LittleEndian2String($charval, 2) : '?'."\x00");
}
}
return $newcharstring;
}
// UTF-8 => UTF-16
public static function iconv_utf8_utf16($string) {
return getid3_lib::iconv_utf8_utf16le($string, true);
}
// UTF-16BE => ISO-8859-1
public static function iconv_utf16be_iso88591($string) {
if (substr($string, 0, 2) == "\xFE\xFF") {
// strip BOM
$string = substr($string, 2);
}
$newcharstring = '';
for ($i = 0; $i < strlen($string); $i += 2) {
$charval = getid3_lib::BigEndian2Int(substr($string, $i, 2));
$newcharstring .= (($charval < 256) ? chr($charval) : '?');
}
return $newcharstring;
}
// UTF-16BE => UTF-8
public static function iconv_utf16be_utf8($string) {
if (substr($string, 0, 2) == "\xFE\xFF") {
// strip BOM
$string = substr($string, 2);
}
$newcharstring = '';
for ($i = 0; $i < strlen($string); $i += 2) {
$charval = getid3_lib::BigEndian2Int(substr($string, $i, 2));
$newcharstring .= getid3_iconv_replacement::iconv_int_utf8($charval);
}
return $newcharstring;
}
// UTF-16BE => UTF-16LE
public static function iconv_utf16be_utf16le($string) {
return getid3_iconv_replacement::iconv_utf8_utf16le(getid3_iconv_replacement::iconv_utf16be_utf8($string));
}
// UTF-16BE => UTF-16
public static function iconv_utf16be_utf16($string) {
return getid3_iconv_replacement::iconv_utf8_utf16(getid3_iconv_replacement::iconv_utf16be_utf8($string));
}
// UTF-16LE => ISO-8859-1
public static function iconv_utf16le_iso88591($string) {
if (substr($string, 0, 2) == "\xFF\xFE") {
// strip BOM
$string = substr($string, 2);
}
$newcharstring = '';
for ($i = 0; $i < strlen($string); $i += 2) {
$charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2));
$newcharstring .= (($charval < 256) ? chr($charval) : '?');
}
return $newcharstring;
}
// UTF-16LE => UTF-8
public static function iconv_utf16le_utf8($string) {
if (substr($string, 0, 2) == "\xFF\xFE") {
// strip BOM
$string = substr($string, 2);
}
$newcharstring = '';
for ($i = 0; $i < strlen($string); $i += 2) {
$charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2));
$newcharstring .= getid3_iconv_replacement::iconv_int_utf8($charval);
}
return $newcharstring;
}
// UTF-16LE => UTF-16BE
public static function iconv_utf16le_utf16be($string) {
return getid3_iconv_replacement::iconv_utf8_utf16be(getid3_iconv_replacement::iconv_utf16le_utf8($string));
}
// UTF-16LE => UTF-16
public static function iconv_utf16le_utf16($string) {
return getid3_iconv_replacement::iconv_utf8_utf16(getid3_iconv_replacement::iconv_utf16le_utf8($string));
}
// UTF-16 => ISO-8859-1
public static function iconv_utf16_iso88591($string) {
$bom = substr($string, 0, 2);
if ($bom == "\xFE\xFF") {
return getid3_lib::iconv_utf16be_iso88591(substr($string, 2));
} elseif ($bom == "\xFF\xFE") {
return getid3_lib::iconv_utf16le_iso88591(substr($string, 2));
}
return $string;
}
// UTF-16 => UTF-8
public static function iconv_utf16_utf8($string) {
$bom = substr($string, 0, 2);
if ($bom == "\xFE\xFF") {
return getid3_iconv_replacement::iconv_utf16be_utf8(substr($string, 2));
} elseif ($bom == "\xFF\xFE") {
return getid3_iconv_replacement::iconv_utf16le_utf8(substr($string, 2));
}
return $string;
}
// UTF-16 => UTF-16BE
public static function iconv_utf16_utf16be($string) {
return getid3_iconv_replacement::iconv_utf8_utf16be(getid3_iconv_replacement::iconv_utf16_utf8($string));
}
// UTF-16 => UTF-16LE
public static function iconv_utf16_utf16le($string) {
return getid3_iconv_replacement::iconv_utf8_utf16le(getid3_iconv_replacement::iconv_utf16_utf8($string));
}
}
?>
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