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<?php /** * Texy! - web text markup-language * -------------------------------- * * Copyright (c) 2004, 2008 David Grudl (http://davidgrudl.com) * * This source file is subject to the GNU GPL license that is bundled * with this package in the file license.txt. * * For more information please see http://texy.info * * @copyright Copyright (c) 2004, 2008 David Grudl * @license GNU GENERAL PUBLIC LICENSE version 2 or 3 * @link http://texy.info * @package Texy * @version $Id: TexyUtf.php 214 2008-07-17 03:50:08Z David Grudl $ */ /** * UTF-8 helper. * * @author David Grudl * @copyright Copyright (c) 2004, 2008 David Grudl * @package Texy */ 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 strtr( 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 = iconv('UTF-8', 'WINDOWS-1250//IGNORE', $s); return strtr($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"); } /** * 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($i)); if ($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 ''; } }