| 1 |
<?php |
| 2 |
|
| 3 |
/* |
| 4 |
* This file is part of the Symfony package. |
| 5 |
* |
| 6 |
* (c) Fabien Potencier <[email protected]> |
| 7 |
* |
| 8 |
* For the full copyright and license information, please view the LICENSE |
| 9 |
* file that was distributed with this source code. |
| 10 |
*/ |
| 11 |
|
| 12 |
namespace Symfony\Polyfill\Intl\Normalizer; |
| 13 |
|
| 14 |
/** |
| 15 |
* Normalizer is a PHP fallback implementation of the Normalizer class provided by the intl extension. |
| 16 |
* |
| 17 |
* It has been validated with Unicode 6.3 Normalization Conformance Test. |
| 18 |
* See http://www.unicode.org/reports/tr15/ for detailed info about Unicode normalizations. |
| 19 |
* |
| 20 |
* @author Nicolas Grekas <[email protected]> |
| 21 |
* |
| 22 |
* @internal |
| 23 |
*/ |
| 24 |
class Normalizer |
| 25 |
{ |
| 26 |
public const FORM_D = \Normalizer::FORM_D; |
| 27 |
public const FORM_KD = \Normalizer::FORM_KD; |
| 28 |
public const FORM_C = \Normalizer::FORM_C; |
| 29 |
public const FORM_KC = \Normalizer::FORM_KC; |
| 30 |
public const NFD = \Normalizer::NFD; |
| 31 |
public const NFKD = \Normalizer::NFKD; |
| 32 |
public const NFC = \Normalizer::NFC; |
| 33 |
public const NFKC = \Normalizer::NFKC; |
| 34 |
|
| 35 |
private static $C; |
| 36 |
private static $D; |
| 37 |
private static $KD; |
| 38 |
private static $cC; |
| 39 |
private static $ulenMask = ["\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4]; |
| 40 |
private static $ASCII = "\x20\x65\x69\x61\x73\x6E\x74\x72\x6F\x6C\x75\x64\x5D\x5B\x63\x6D\x70\x27\x0A\x67\x7C\x68\x76\x2E\x66\x62\x2C\x3A\x3D\x2D\x71\x31\x30\x43\x32\x2A\x79\x78\x29\x28\x4C\x39\x41\x53\x2F\x50\x22\x45\x6A\x4D\x49\x6B\x33\x3E\x35\x54\x3C\x44\x34\x7D\x42\x7B\x38\x46\x77\x52\x36\x37\x55\x47\x4E\x3B\x4A\x7A\x56\x23\x48\x4F\x57\x5F\x26\x21\x4B\x3F\x58\x51\x25\x59\x5C\x09\x5A\x2B\x7E\x5E\x24\x40\x60\x7F\x00\x01\x02\x03\x04\x05\x06\x07\x08\x0B\x0C\x0D\x0E\x0F\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"; |
| 41 |
|
| 42 |
public static function isNormalized(string $s, int $form = self::FORM_C) |
| 43 |
{ |
| 44 |
if (!\in_array($form, [self::NFD, self::NFKD, self::NFC, self::NFKC])) { |
| 45 |
return false; |
| 46 |
} |
| 47 |
if (!isset($s[strspn($s, self::$ASCII)])) { |
| 48 |
return true; |
| 49 |
} |
| 50 |
if (self::NFC == $form && preg_match('//u', $s) && !preg_match('/[^\x00-\x{2FF}]/u', $s)) { |
| 51 |
return true; |
| 52 |
} |
| 53 |
|
| 54 |
return self::normalize($s, $form) === $s; |
| 55 |
} |
| 56 |
|
| 57 |
public static function normalize(string $s, int $form = self::FORM_C) |
| 58 |
{ |
| 59 |
if (!preg_match('//u', $s)) { |
| 60 |
return false; |
| 61 |
} |
| 62 |
|
| 63 |
switch ($form) { |
| 64 |
case self::NFC: $C = true; $K = false; break; |
| 65 |
case self::NFD: $C = false; $K = false; break; |
| 66 |
case self::NFKC: $C = true; $K = true; break; |
| 67 |
case self::NFKD: $C = false; $K = true; break; |
| 68 |
default: |
| 69 |
if (\defined('Normalizer::NONE') && \Normalizer::NONE == $form) { |
| 70 |
return $s; |
| 71 |
} |
| 72 |
|
| 73 |
if (80000 > \PHP_VERSION_ID) { |
| 74 |
return false; |
| 75 |
} |
| 76 |
|
| 77 |
throw new \ValueError('normalizer_normalize(): Argument #2 ($form) must be a a valid normalization form'); |
| 78 |
} |
| 79 |
|
| 80 |
if ('' === $s) { |
| 81 |
return ''; |
| 82 |
} |
| 83 |
|
| 84 |
if ($K && null === self::$KD) { |
| 85 |
self::$KD = self::getData('compatibilityDecomposition'); |
| 86 |
} |
| 87 |
|
| 88 |
if (null === self::$D) { |
| 89 |
self::$D = self::getData('canonicalDecomposition'); |
| 90 |
self::$cC = self::getData('combiningClass'); |
| 91 |
} |
| 92 |
|
| 93 |
if (null !== $mbEncoding = (2 /* MB_OVERLOAD_STRING */ & (int) ini_get('mbstring.func_overload')) ? mb_internal_encoding() : null) { |
| 94 |
mb_internal_encoding('8bit'); |
| 95 |
} |
| 96 |
|
| 97 |
$r = self::decompose($s, $K); |
| 98 |
|
| 99 |
if ($C) { |
| 100 |
if (null === self::$C) { |
| 101 |
self::$C = self::getData('canonicalComposition'); |
| 102 |
} |
| 103 |
|
| 104 |
$r = self::recompose($r); |
| 105 |
} |
| 106 |
if (null !== $mbEncoding) { |
| 107 |
mb_internal_encoding($mbEncoding); |
| 108 |
} |
| 109 |
|
| 110 |
return $r; |
| 111 |
} |
| 112 |
|
| 113 |
private static function recompose($s) |
| 114 |
{ |
| 115 |
$ASCII = self::$ASCII; |
| 116 |
$compMap = self::$C; |
| 117 |
$combClass = self::$cC; |
| 118 |
$ulenMask = self::$ulenMask; |
| 119 |
|
| 120 |
$result = $tail = ''; |
| 121 |
|
| 122 |
$i = $s[0] < "\x80" ? 1 : $ulenMask[$s[0] & "\xF0"]; |
| 123 |
$len = \strlen($s); |
| 124 |
|
| 125 |
$lastUchr = substr($s, 0, $i); |
| 126 |
$lastUcls = isset($combClass[$lastUchr]) ? 256 : 0; |
| 127 |
|
| 128 |
while ($i < $len) { |
| 129 |
if ($s[$i] < "\x80") { |
| 130 |
// ASCII chars |
| 131 |
|
| 132 |
if ($tail) { |
| 133 |
$lastUchr .= $tail; |
| 134 |
$tail = ''; |
| 135 |
} |
| 136 |
|
| 137 |
if ($j = strspn($s, $ASCII, $i + 1)) { |
| 138 |
$lastUchr .= substr($s, $i, $j); |
| 139 |
$i += $j; |
| 140 |
} |
| 141 |
|
| 142 |
$result .= $lastUchr; |
| 143 |
$lastUchr = $s[$i]; |
| 144 |
$lastUcls = 0; |
| 145 |
++$i; |
| 146 |
continue; |
| 147 |
} |
| 148 |
|
| 149 |
$ulen = $ulenMask[$s[$i] & "\xF0"]; |
| 150 |
$uchr = substr($s, $i, $ulen); |
| 151 |
|
| 152 |
if ($lastUchr < "\xE1\x84\x80" || "\xE1\x84\x92" < $lastUchr |
| 153 |
|| $uchr < "\xE1\x85\xA1" || "\xE1\x85\xB5" < $uchr |
| 154 |
|| $lastUcls) { |
| 155 |
// Table lookup and combining chars composition |
| 156 |
|
| 157 |
$ucls = $combClass[$uchr] ?? 0; |
| 158 |
|
| 159 |
if (isset($compMap[$lastUchr.$uchr]) && (!$lastUcls || $lastUcls < $ucls)) { |
| 160 |
$lastUchr = $compMap[$lastUchr.$uchr]; |
| 161 |
} elseif ($lastUcls = $ucls) { |
| 162 |
$tail .= $uchr; |
| 163 |
} else { |
| 164 |
if ($tail) { |
| 165 |
$lastUchr .= $tail; |
| 166 |
$tail = ''; |
| 167 |
} |
| 168 |
|
| 169 |
$result .= $lastUchr; |
| 170 |
$lastUchr = $uchr; |
| 171 |
} |
| 172 |
} else { |
| 173 |
// Hangul chars |
| 174 |
|
| 175 |
$L = \ord($lastUchr[2]) - 0x80; |
| 176 |
$V = \ord($uchr[2]) - 0xA1; |
| 177 |
$T = 0; |
| 178 |
|
| 179 |
$uchr = substr($s, $i + $ulen, 3); |
| 180 |
|
| 181 |
if ("\xE1\x86\xA7" <= $uchr && $uchr <= "\xE1\x87\x82") { |
| 182 |
$T = \ord($uchr[2]) - 0xA7; |
| 183 |
0 > $T && $T += 0x40; |
| 184 |
$ulen += 3; |
| 185 |
} |
| 186 |
|
| 187 |
$L = 0xAC00 + ($L * 21 + $V) * 28 + $T; |
| 188 |
$lastUchr = \chr(0xE0 | $L >> 12).\chr(0x80 | $L >> 6 & 0x3F).\chr(0x80 | $L & 0x3F); |
| 189 |
} |
| 190 |
|
| 191 |
$i += $ulen; |
| 192 |
} |
| 193 |
|
| 194 |
return $result.$lastUchr.$tail; |
| 195 |
} |
| 196 |
|
| 197 |
private static function decompose($s, $c) |
| 198 |
{ |
| 199 |
$result = ''; |
| 200 |
|
| 201 |
$ASCII = self::$ASCII; |
| 202 |
$decompMap = self::$D; |
| 203 |
$combClass = self::$cC; |
| 204 |
$ulenMask = self::$ulenMask; |
| 205 |
if ($c) { |
| 206 |
$compatMap = self::$KD; |
| 207 |
} |
| 208 |
|
| 209 |
$c = []; |
| 210 |
$i = 0; |
| 211 |
$len = \strlen($s); |
| 212 |
|
| 213 |
while ($i < $len) { |
| 214 |
if ($s[$i] < "\x80") { |
| 215 |
// ASCII chars |
| 216 |
|
| 217 |
if ($c) { |
| 218 |
ksort($c); |
| 219 |
$result .= implode('', $c); |
| 220 |
$c = []; |
| 221 |
} |
| 222 |
|
| 223 |
$j = 1 + strspn($s, $ASCII, $i + 1); |
| 224 |
$result .= substr($s, $i, $j); |
| 225 |
$i += $j; |
| 226 |
continue; |
| 227 |
} |
| 228 |
|
| 229 |
$ulen = $ulenMask[$s[$i] & "\xF0"]; |
| 230 |
$uchr = substr($s, $i, $ulen); |
| 231 |
$i += $ulen; |
| 232 |
|
| 233 |
if ($uchr < "\xEA\xB0\x80" || "\xED\x9E\xA3" < $uchr) { |
| 234 |
// Table lookup |
| 235 |
|
| 236 |
if ($uchr !== $j = $compatMap[$uchr] ?? ($decompMap[$uchr] ?? $uchr)) { |
| 237 |
$uchr = $j; |
| 238 |
|
| 239 |
$j = \strlen($uchr); |
| 240 |
$ulen = $uchr[0] < "\x80" ? 1 : $ulenMask[$uchr[0] & "\xF0"]; |
| 241 |
|
| 242 |
if ($ulen != $j) { |
| 243 |
// Put trailing chars in $s |
| 244 |
|
| 245 |
$j -= $ulen; |
| 246 |
$i -= $j; |
| 247 |
|
| 248 |
if (0 > $i) { |
| 249 |
$s = str_repeat(' ', -$i).$s; |
| 250 |
$len -= $i; |
| 251 |
$i = 0; |
| 252 |
} |
| 253 |
|
| 254 |
while ($j--) { |
| 255 |
$s[$i + $j] = $uchr[$ulen + $j]; |
| 256 |
} |
| 257 |
|
| 258 |
$uchr = substr($uchr, 0, $ulen); |
| 259 |
} |
| 260 |
} |
| 261 |
if (isset($combClass[$uchr])) { |
| 262 |
// Combining chars, for sorting |
| 263 |
|
| 264 |
if (!isset($c[$combClass[$uchr]])) { |
| 265 |
$c[$combClass[$uchr]] = ''; |
| 266 |
} |
| 267 |
$c[$combClass[$uchr]] .= $uchr; |
| 268 |
continue; |
| 269 |
} |
| 270 |
} else { |
| 271 |
// Hangul chars |
| 272 |
|
| 273 |
$uchr = unpack('C*', $uchr); |
| 274 |
$j = (($uchr[1] - 224) << 12) + (($uchr[2] - 128) << 6) + $uchr[3] - 0xAC80; |
| 275 |
|
| 276 |
$uchr = "\xE1\x84".\chr(0x80 + (int) ($j / 588)) |
| 277 |
."\xE1\x85".\chr(0xA1 + (int) (($j % 588) / 28)); |
| 278 |
|
| 279 |
if ($j %= 28) { |
| 280 |
$uchr .= $j < 25 |
| 281 |
? ("\xE1\x86".\chr(0xA7 + $j)) |
| 282 |
: ("\xE1\x87".\chr(0x67 + $j)); |
| 283 |
} |
| 284 |
} |
| 285 |
if ($c) { |
| 286 |
ksort($c); |
| 287 |
$result .= implode('', $c); |
| 288 |
$c = []; |
| 289 |
} |
| 290 |
|
| 291 |
$result .= $uchr; |
| 292 |
} |
| 293 |
|
| 294 |
if ($c) { |
| 295 |
ksort($c); |
| 296 |
$result .= implode('', $c); |
| 297 |
} |
| 298 |
|
| 299 |
return $result; |
| 300 |
} |
| 301 |
|
| 302 |
private static function getData($file) |
| 303 |
{ |
| 304 |
if (file_exists($file = __DIR__.'/Resources/unidata/'.$file.'.php')) { |
| 305 |
return require $file; |
| 306 |
} |
| 307 |
|
| 308 |
return false; |
| 309 |
} |
| 310 |
} |
| 311 |
|
