| commit | author | age | ||
| bdc07a | 1 | <?php |
| 83dbb7 | 2 | /* |
| T | 3 | utf8 1.0 |
| 4 | Copyright: Left | |
| 5 | --------------------------------------------------------------------------------- | |
| 6 | Version: 1.0 | |
| 7 | Date: 23 November 2004 | |
| 8 | --------------------------------------------------------------------------------- | |
| 9 | Author: Alexander Minkovsky (a_minkovsky@hotmail.com) | |
| 10 | --------------------------------------------------------------------------------- | |
| 11 | License: Choose the more appropriated for You - I don't care. | |
| 12 | --------------------------------------------------------------------------------- | |
| 13 | Description: | |
| 14 | Class provides functionality to convert single byte strings, such as CP1251 | |
| 15 | ti UTF-8 multibyte format and vice versa. | |
| 16 | Class loads a concrete charset map, for example CP1251. | |
| 17 | (Refer to ftp://ftp.unicode.org/Public/MAPPINGS/ for map files) | |
| 18 | Directory containing MAP files is predefined as constant. | |
| 19 | Each charset is also predefined as constant pointing to the MAP file. | |
| 20 | --------------------------------------------------------------------------------- | |
| 21 | Example usage: | |
| 22 | Pass the desired charset in the class constructor: | |
| 23 | $utfConverter = new utf8(CP1251); //defaults to CP1250. | |
| 24 | or load the charset MAP using loadCharset method like this: | |
| 25 | $utfConverter->loadCharset(CP1252); | |
| 26 | Then call | |
| 27 | $res = $utfConverter->strToUtf8($str); | |
| 28 | or | |
| 29 | $res = $utfConverter->utf8ToStr($utf); | |
| 30 | to get the needed encoding. | |
| 31 | --------------------------------------------------------------------------------- | |
| 32 | Note: | |
| 33 | Rewrite or Override the onError method if needed. It's the error handler used from everywhere and takes 2 parameters: | |
| 34 | err_code and err_text. By default it just prints out a message about the error. | |
| 35 | */ | |
| 36 | ||
| 37 | // Charset maps | |
| 38 | // Adapted to fit RoundCube | |
| 39 | define("UTF8_MAP_DIR", "program/lib/encoding"); | |
| 40 | $utf8_maps = array( | |
| 41 | "CP1250" => UTF8_MAP_DIR . "/CP1250.map", | |
| 42 | "CP1251" => UTF8_MAP_DIR . "/CP1251.map", | |
| 43 | "CP1252" => UTF8_MAP_DIR . "/CP1252.map", | |
| 44 | "CP1253" => UTF8_MAP_DIR . "/CP1253.map", | |
| 45 | "CP1254" => UTF8_MAP_DIR . "/CP1254.map", | |
| 46 | "CP1255" => UTF8_MAP_DIR . "/CP1255.map", | |
| 47 | "CP1256" => UTF8_MAP_DIR . "/CP1256.map", | |
| 48 | "CP1257" => UTF8_MAP_DIR . "/CP1257.map", | |
| 49 | "CP1258" => UTF8_MAP_DIR . "/CP1258.map", | |
| 50 | "ISO-8859-1" => UTF8_MAP_DIR . "/ISO-8859-1.map", | |
| 51 | "ISO-8859-2" => UTF8_MAP_DIR . "/ISO-8859-2.map", | |
| 52 | "ISO-8859-3" => UTF8_MAP_DIR . "/ISO-8859-3.map", | |
| 5f56a5 | 53 | "ISO-8859-4" => UTF8_MAP_DIR . "/ISO-8859-4.map", |
| T | 54 | "ISO-8859-5" => UTF8_MAP_DIR . "/ISO-8859-5.map", |
| 55 | "ISO-8859-6" => UTF8_MAP_DIR . "/ISO-8859-6.map", | |
| 56 | "ISO-8859-7" => UTF8_MAP_DIR . "/ISO-8859-7.map", | |
| 57 | "ISO-8859-8" => UTF8_MAP_DIR . "/ISO-8859-8.map", | |
| 58 | "ISO-8859-9" => UTF8_MAP_DIR . "/ISO-8859-9.map" | |
| 59 | ); | |
| 83dbb7 | 60 | |
| T | 61 | //Error constants |
| 62 | define("ERR_OPEN_MAP_FILE","ERR_OPEN_MAP_FILE"); | |
| 63 | ||
| 64 | //Class definition | |
| 65 | Class utf8{ | |
| 66 | ||
| 58e360 | 67 | var $charset = "ISO-8859-1"; |
| 83dbb7 | 68 | var $ascMap = array(); |
| T | 69 | var $utfMap = array(); |
| 58e360 | 70 | |
| 83dbb7 | 71 | // made PHP5 capable by RoundCube |
| T | 72 | function __construct($charset="ISO-8859-1"){ |
| 73 | $this->loadCharset($charset); | |
| 74 | } | |
| 75 | ||
| 76 | //Constructor | |
| 77 | function utf8($charset="ISO-8859-1"){ | |
| 78 | $this->__construct($charset); | |
| 79 | } | |
| 80 | ||
| 81 | //Load charset | |
| 82 | function loadCharset($charset){ | |
| 83 | global $utf8_maps; | |
| 58e360 | 84 | |
| 83dbb7 | 85 | if (!is_file($utf8_maps[$charset])) |
| T | 86 | { |
| 87 | $this->onError(ERR_OPEN_MAP_FILE, "Failed to open map file for $charset"); | |
| 88 | return; | |
| 89 | } | |
| 90 | ||
| 91 | if (empty($this->ascMap[$charset])) | |
| 92 | { | |
| 93 | $lines = file_get_contents($utf8_maps[$charset]); | |
| 94 | $lines = preg_replace("/#.*$/m","",$lines); | |
| 95 | $lines = preg_replace("/\n\n/","",$lines); | |
| 96 | $lines = explode("\n",$lines); | |
| 97 | foreach($lines as $line){ | |
| 98 | $parts = explode('0x',$line); | |
| 99 | if(count($parts)==3){ | |
| 100 | $asc=hexdec(substr($parts[1],0,2)); | |
| 101 | $utf=hexdec(substr($parts[2],0,4)); | |
| 102 | $this->ascMap[$charset][$asc]=$utf; | |
| 103 | } | |
| 104 | } | |
| 105 | } | |
| 106 | ||
| 107 | $this->charset = $charset; | |
| 108 | $this->utfMap = array_flip($this->ascMap[$charset]); | |
| 109 | } | |
| 110 | ||
| 111 | //Error handler | |
| 112 | function onError($err_code,$err_text){ | |
| 113 | //print($err_code . " : " . $err_text . "<hr>\n"); | |
| 114 | raise_error(array('code' => 500, | |
| 115 | 'file' => __FILE__, | |
| 116 | 'message' => $err_text), TRUE, FALSE); | |
| 117 | } | |
| 118 | ||
| 119 | //Translate string ($str) to UTF-8 from given charset | |
| 120 | function strToUtf8($str){ | |
| 121 | $chars = unpack('C*', $str); | |
| 122 | $cnt = count($chars); | |
| 123 | for($i=1;$i<=$cnt;$i++) $this->_charToUtf8($chars[$i]); | |
| 124 | return implode("",$chars); | |
| 125 | } | |
| 126 | ||
| 127 | //Translate UTF-8 string to single byte string in the given charset | |
| 128 | function utf8ToStr($utf){ | |
| 129 | $chars = unpack('C*', $utf); | |
| 130 | $cnt = count($chars); | |
| 131 | $res = ""; //No simple way to do it in place... concatenate char by char | |
| 132 | for ($i=1;$i<=$cnt;$i++){ | |
| 133 | $res .= $this->_utf8ToChar($chars, $i); | |
| 134 | } | |
| 135 | return $res; | |
| 136 | } | |
| 137 | ||
| 138 | //Char to UTF-8 sequence | |
| 139 | function _charToUtf8(&$char){ | |
| 140 | $c = (int)$this->ascMap[$this->charset][$char]; | |
| 141 | if ($c < 0x80){ | |
| 142 | $char = chr($c); | |
| 143 | } | |
| 144 | else if($c<0x800) // 2 bytes | |
| 145 | $char = (chr(0xC0 | $c>>6) . chr(0x80 | $c & 0x3F)); | |
| 146 | else if($c<0x10000) // 3 bytes | |
| 147 | $char = (chr(0xE0 | $c>>12) . chr(0x80 | $c>>6 & 0x3F) . chr(0x80 | $c & 0x3F)); | |
| 148 | else if($c<0x200000) // 4 bytes | |
| 149 | $char = (chr(0xF0 | $c>>18) . chr(0x80 | $c>>12 & 0x3F) . chr(0x80 | $c>>6 & 0x3F) . chr(0x80 | $c & 0x3F)); | |
| 150 | } | |
| 151 | ||
| 152 | //UTF-8 sequence to single byte character | |
| 153 | function _utf8ToChar(&$chars, &$idx){ | |
| 154 | if(($chars[$idx] >= 240) && ($chars[$idx] <= 255)){ // 4 bytes | |
| 155 | $utf = (intval($chars[$idx]-240) << 18) + | |
| 156 | (intval($chars[++$idx]-128) << 12) + | |
| 157 | (intval($chars[++$idx]-128) << 6) + | |
| 158 | (intval($chars[++$idx]-128) << 0); | |
| 159 | } | |
| 160 | else if (($chars[$idx] >= 224) && ($chars[$idx] <= 239)){ // 3 bytes | |
| 161 | $utf = (intval($chars[$idx]-224) << 12) + | |
| 162 | (intval($chars[++$idx]-128) << 6) + | |
| 163 | (intval($chars[++$idx]-128) << 0); | |
| 164 | } | |
| 165 | else if (($chars[$idx] >= 192) && ($chars[$idx] <= 223)){ // 2 bytes | |
| 166 | $utf = (intval($chars[$idx]-192) << 6) + | |
| 167 | (intval($chars[++$idx]-128) << 0); | |
| 168 | } | |
| 169 | else{ // 1 byte | |
| 170 | $utf = $chars[$idx]; | |
| 171 | } | |
| 172 | if(array_key_exists($utf,$this->utfMap)) | |
| 173 | return chr($this->utfMap[$utf]); | |
| 174 | else | |
| 175 | return "?"; | |
| 176 | } | |
| 177 | ||
| 178 | } | |
| 58e360 | 179 | |
| T | 180 | ?> |
