/usr/share/php/texy/src/Texy/TexyUtf.php is in php-texy 2.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* This file is part of the Texy! (http://texy.info)
* Copyright (c) 2004 David Grudl (http://davidgrudl.com)
*/
/**
* UTF-8 helper.
*
* @author David Grudl
*/
class TexyUtf
{
/** @var array */
private static $xlat;
/** @var array */
private static $xlatCache;
/**
* static class.
*/
final public function __construct()
{
throw new LogicException("Cannot instantiate static class " . get_class($this));
}
/**
* Converts from source encoding to UTF-8.
*/
public static function toUtf($s, $encoding)
{
return iconv($encoding, 'UTF-8', $s);
}
/**
* Converts from UTF-8 to dest encoding.
*/
public static function utfTo($s, $encoding)
{
return iconv('UTF-8', $encoding.'//TRANSLIT', $s);
}
/**
* StrToLower in UTF-8.
*/
public static function strtolower($s)
{
if (function_exists('mb_strtolower')) {
return mb_strtolower($s, 'UTF-8');
}
return @iconv('WINDOWS-1250', 'UTF-8', strtr( // intentionally @
iconv('UTF-8', 'WINDOWS-1250//IGNORE', $s),
"ABCDEFGHIJKLMNOPQRSTUVWXYZ\x8a\x8c\x8d\x8e\x8f\xa3\xa5\xaa\xaf\xbc\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd8\xd9\xda\xdb\xdc\xdd\xde",
"abcdefghijklmnopqrstuvwxyz\x9a\x9c\x9d\x9e\x9f\xb3\xb9\xba\xbf\xbe\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf8\xf9\xfa\xfb\xfc\xfd\xfe"
));
}
/**
* Converts UTF-8 to ASCII.
* iconv('UTF-8', 'ASCII//TRANSLIT', ...) has problem with glibc!
*/
public static function utf2ascii($s)
{
$s = strtr($s, '`\'"^~', '-----');
if (ICONV_IMPL === 'glibc') {
$s = @iconv('UTF-8', 'WINDOWS-1250//TRANSLIT', $s); // intentionally @
$s = strtr($s, "\xa5\xa3\xbc\x8c\xa7\x8a\xaa\x8d\x8f\x8e\xaf\xb9\xb3\xbe\x9c\x9a\xba\x9d\x9f\x9e\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2"
."\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf8\xf9\xfa\xfb\xfc\xfd\xfe",
"ALLSSSSTZZZallssstzzzRAAAALCCCEEEEIIDDNNOOOOxRUUUUYTsraaaalccceeeeiiddnnooooruuuuyt");
} else {
$s = @iconv('UTF-8', 'ASCII//TRANSLIT', $s); // intentionally @
}
$s = str_replace(array('`', "'", '"', '^', '~'), '', $s);
return $s;
}
/**
* Converts UTF-8 to dest encoding + html entities.
*/
public static function utf2html($s, $encoding)
{
// convert from UTF-8
if (strcasecmp($encoding, 'utf-8') === 0) {
return $s;
}
// prepare UTF-8 -> charset table
self::$xlat = & self::$xlatCache[strtolower($encoding)];
if (!self::$xlat) {
for ($i = 128; $i<256; $i++) {
$ch = @iconv($encoding, 'UTF-8//IGNORE', chr($i)); // intentionally @
if ($ch) {
self::$xlat[$ch] = chr($i);
}
}
}
// convert
return preg_replace_callback('#[\x80-\x{FFFF}]#u', array(__CLASS__, 'cb'), $s);
}
/**
* Callback; converts UTF-8 to HTML entity OR character in dest encoding.
*/
private static function cb($m)
{
$m = $m[0];
if (isset(self::$xlat[$m])) {
return self::$xlat[$m];
}
$ch1 = ord($m[0]);
$ch2 = ord($m[1]);
if (($ch2 >> 6) !== 2) {
return '';
}
if (($ch1 & 0xE0) === 0xC0) {
return '&#' . ((($ch1 & 0x1F) << 6) + ($ch2 & 0x3F)) . ';';
}
if (($ch1 & 0xF0) === 0xE0) {
$ch3 = ord($m[2]);
if (($ch3 >> 6) !== 2) {
return '';
}
return '&#' . ((($ch1 & 0xF) << 12) + (($ch2 & 0x3F) << 06) + (($ch3 & 0x3F))) . ';';
}
return '';
}
}
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