You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
311 lines
9.3 KiB
311 lines
9.3 KiB
1 year ago
|
<?php
|
||
|
|
||
|
/*
|
||
|
* This file is part of the Symfony package.
|
||
|
*
|
||
|
* (c) Fabien Potencier <fabien@symfony.com>
|
||
|
*
|
||
|
* For the full copyright and license information, please view the LICENSE
|
||
|
* file that was distributed with this source code.
|
||
|
*/
|
||
|
|
||
|
namespace Symfony\Polyfill\Intl\Normalizer;
|
||
|
|
||
|
/**
|
||
|
* Normalizer is a PHP fallback implementation of the Normalizer class provided by the intl extension.
|
||
|
*
|
||
|
* It has been validated with Unicode 6.3 Normalization Conformance Test.
|
||
|
* See http://www.unicode.org/reports/tr15/ for detailed info about Unicode normalizations.
|
||
|
*
|
||
|
* @author Nicolas Grekas <p@tchwork.com>
|
||
|
*
|
||
|
* @internal
|
||
|
*/
|
||
|
class Normalizer
|
||
|
{
|
||
|
public const FORM_D = \Normalizer::FORM_D;
|
||
|
public const FORM_KD = \Normalizer::FORM_KD;
|
||
|
public const FORM_C = \Normalizer::FORM_C;
|
||
|
public const FORM_KC = \Normalizer::FORM_KC;
|
||
|
public const NFD = \Normalizer::NFD;
|
||
|
public const NFKD = \Normalizer::NFKD;
|
||
|
public const NFC = \Normalizer::NFC;
|
||
|
public const NFKC = \Normalizer::NFKC;
|
||
|
|
||
|
private static $C;
|
||
|
private static $D;
|
||
|
private static $KD;
|
||
|
private static $cC;
|
||
|
private static $ulenMask = ["\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4];
|
||
|
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";
|
||
|
|
||
|
public static function isNormalized(string $s, int $form = self::FORM_C)
|
||
|
{
|
||
|
if (!\in_array($form, [self::NFD, self::NFKD, self::NFC, self::NFKC])) {
|
||
|
return false;
|
||
|
}
|
||
|
if (!isset($s[strspn($s, self::$ASCII)])) {
|
||
|
return true;
|
||
|
}
|
||
|
if (self::NFC == $form && preg_match('//u', $s) && !preg_match('/[^\x00-\x{2FF}]/u', $s)) {
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
return self::normalize($s, $form) === $s;
|
||
|
}
|
||
|
|
||
|
public static function normalize(string $s, int $form = self::FORM_C)
|
||
|
{
|
||
|
if (!preg_match('//u', $s)) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
switch ($form) {
|
||
|
case self::NFC: $C = true; $K = false; break;
|
||
|
case self::NFD: $C = false; $K = false; break;
|
||
|
case self::NFKC: $C = true; $K = true; break;
|
||
|
case self::NFKD: $C = false; $K = true; break;
|
||
|
default:
|
||
|
if (\defined('Normalizer::NONE') && \Normalizer::NONE == $form) {
|
||
|
return $s;
|
||
|
}
|
||
|
|
||
|
if (80000 > \PHP_VERSION_ID) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
throw new \ValueError('normalizer_normalize(): Argument #2 ($form) must be a a valid normalization form');
|
||
|
}
|
||
|
|
||
|
if ('' === $s) {
|
||
|
return '';
|
||
|
}
|
||
|
|
||
|
if ($K && null === self::$KD) {
|
||
|
self::$KD = self::getData('compatibilityDecomposition');
|
||
|
}
|
||
|
|
||
|
if (null === self::$D) {
|
||
|
self::$D = self::getData('canonicalDecomposition');
|
||
|
self::$cC = self::getData('combiningClass');
|
||
|
}
|
||
|
|
||
|
if (null !== $mbEncoding = (2 /* MB_OVERLOAD_STRING */ & (int) ini_get('mbstring.func_overload')) ? mb_internal_encoding() : null) {
|
||
|
mb_internal_encoding('8bit');
|
||
|
}
|
||
|
|
||
|
$r = self::decompose($s, $K);
|
||
|
|
||
|
if ($C) {
|
||
|
if (null === self::$C) {
|
||
|
self::$C = self::getData('canonicalComposition');
|
||
|
}
|
||
|
|
||
|
$r = self::recompose($r);
|
||
|
}
|
||
|
if (null !== $mbEncoding) {
|
||
|
mb_internal_encoding($mbEncoding);
|
||
|
}
|
||
|
|
||
|
return $r;
|
||
|
}
|
||
|
|
||
|
private static function recompose($s)
|
||
|
{
|
||
|
$ASCII = self::$ASCII;
|
||
|
$compMap = self::$C;
|
||
|
$combClass = self::$cC;
|
||
|
$ulenMask = self::$ulenMask;
|
||
|
|
||
|
$result = $tail = '';
|
||
|
|
||
|
$i = $s[0] < "\x80" ? 1 : $ulenMask[$s[0] & "\xF0"];
|
||
|
$len = \strlen($s);
|
||
|
|
||
|
$lastUchr = substr($s, 0, $i);
|
||
|
$lastUcls = isset($combClass[$lastUchr]) ? 256 : 0;
|
||
|
|
||
|
while ($i < $len) {
|
||
|
if ($s[$i] < "\x80") {
|
||
|
// ASCII chars
|
||
|
|
||
|
if ($tail) {
|
||
|
$lastUchr .= $tail;
|
||
|
$tail = '';
|
||
|
}
|
||
|
|
||
|
if ($j = strspn($s, $ASCII, $i + 1)) {
|
||
|
$lastUchr .= substr($s, $i, $j);
|
||
|
$i += $j;
|
||
|
}
|
||
|
|
||
|
$result .= $lastUchr;
|
||
|
$lastUchr = $s[$i];
|
||
|
$lastUcls = 0;
|
||
|
++$i;
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
$ulen = $ulenMask[$s[$i] & "\xF0"];
|
||
|
$uchr = substr($s, $i, $ulen);
|
||
|
|
||
|
if ($lastUchr < "\xE1\x84\x80" || "\xE1\x84\x92" < $lastUchr
|
||
|
|| $uchr < "\xE1\x85\xA1" || "\xE1\x85\xB5" < $uchr
|
||
|
|| $lastUcls) {
|
||
|
// Table lookup and combining chars composition
|
||
|
|
||
|
$ucls = $combClass[$uchr] ?? 0;
|
||
|
|
||
|
if (isset($compMap[$lastUchr.$uchr]) && (!$lastUcls || $lastUcls < $ucls)) {
|
||
|
$lastUchr = $compMap[$lastUchr.$uchr];
|
||
|
} elseif ($lastUcls = $ucls) {
|
||
|
$tail .= $uchr;
|
||
|
} else {
|
||
|
if ($tail) {
|
||
|
$lastUchr .= $tail;
|
||
|
$tail = '';
|
||
|
}
|
||
|
|
||
|
$result .= $lastUchr;
|
||
|
$lastUchr = $uchr;
|
||
|
}
|
||
|
} else {
|
||
|
// Hangul chars
|
||
|
|
||
|
$L = \ord($lastUchr[2]) - 0x80;
|
||
|
$V = \ord($uchr[2]) - 0xA1;
|
||
|
$T = 0;
|
||
|
|
||
|
$uchr = substr($s, $i + $ulen, 3);
|
||
|
|
||
|
if ("\xE1\x86\xA7" <= $uchr && $uchr <= "\xE1\x87\x82") {
|
||
|
$T = \ord($uchr[2]) - 0xA7;
|
||
|
0 > $T && $T += 0x40;
|
||
|
$ulen += 3;
|
||
|
}
|
||
|
|
||
|
$L = 0xAC00 + ($L * 21 + $V) * 28 + $T;
|
||
|
$lastUchr = \chr(0xE0 | $L >> 12).\chr(0x80 | $L >> 6 & 0x3F).\chr(0x80 | $L & 0x3F);
|
||
|
}
|
||
|
|
||
|
$i += $ulen;
|
||
|
}
|
||
|
|
||
|
return $result.$lastUchr.$tail;
|
||
|
}
|
||
|
|
||
|
private static function decompose($s, $c)
|
||
|
{
|
||
|
$result = '';
|
||
|
|
||
|
$ASCII = self::$ASCII;
|
||
|
$decompMap = self::$D;
|
||
|
$combClass = self::$cC;
|
||
|
$ulenMask = self::$ulenMask;
|
||
|
if ($c) {
|
||
|
$compatMap = self::$KD;
|
||
|
}
|
||
|
|
||
|
$c = [];
|
||
|
$i = 0;
|
||
|
$len = \strlen($s);
|
||
|
|
||
|
while ($i < $len) {
|
||
|
if ($s[$i] < "\x80") {
|
||
|
// ASCII chars
|
||
|
|
||
|
if ($c) {
|
||
|
ksort($c);
|
||
|
$result .= implode('', $c);
|
||
|
$c = [];
|
||
|
}
|
||
|
|
||
|
$j = 1 + strspn($s, $ASCII, $i + 1);
|
||
|
$result .= substr($s, $i, $j);
|
||
|
$i += $j;
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
$ulen = $ulenMask[$s[$i] & "\xF0"];
|
||
|
$uchr = substr($s, $i, $ulen);
|
||
|
$i += $ulen;
|
||
|
|
||
|
if ($uchr < "\xEA\xB0\x80" || "\xED\x9E\xA3" < $uchr) {
|
||
|
// Table lookup
|
||
|
|
||
|
if ($uchr !== $j = $compatMap[$uchr] ?? ($decompMap[$uchr] ?? $uchr)) {
|
||
|
$uchr = $j;
|
||
|
|
||
|
$j = \strlen($uchr);
|
||
|
$ulen = $uchr[0] < "\x80" ? 1 : $ulenMask[$uchr[0] & "\xF0"];
|
||
|
|
||
|
if ($ulen != $j) {
|
||
|
// Put trailing chars in $s
|
||
|
|
||
|
$j -= $ulen;
|
||
|
$i -= $j;
|
||
|
|
||
|
if (0 > $i) {
|
||
|
$s = str_repeat(' ', -$i).$s;
|
||
|
$len -= $i;
|
||
|
$i = 0;
|
||
|
}
|
||
|
|
||
|
while ($j--) {
|
||
|
$s[$i + $j] = $uchr[$ulen + $j];
|
||
|
}
|
||
|
|
||
|
$uchr = substr($uchr, 0, $ulen);
|
||
|
}
|
||
|
}
|
||
|
if (isset($combClass[$uchr])) {
|
||
|
// Combining chars, for sorting
|
||
|
|
||
|
if (!isset($c[$combClass[$uchr]])) {
|
||
|
$c[$combClass[$uchr]] = '';
|
||
|
}
|
||
|
$c[$combClass[$uchr]] .= $uchr;
|
||
|
continue;
|
||
|
}
|
||
|
} else {
|
||
|
// Hangul chars
|
||
|
|
||
|
$uchr = unpack('C*', $uchr);
|
||
|
$j = (($uchr[1] - 224) << 12) + (($uchr[2] - 128) << 6) + $uchr[3] - 0xAC80;
|
||
|
|
||
|
$uchr = "\xE1\x84".\chr(0x80 + (int) ($j / 588))
|
||
|
."\xE1\x85".\chr(0xA1 + (int) (($j % 588) / 28));
|
||
|
|
||
|
if ($j %= 28) {
|
||
|
$uchr .= $j < 25
|
||
|
? ("\xE1\x86".\chr(0xA7 + $j))
|
||
|
: ("\xE1\x87".\chr(0x67 + $j));
|
||
|
}
|
||
|
}
|
||
|
if ($c) {
|
||
|
ksort($c);
|
||
|
$result .= implode('', $c);
|
||
|
$c = [];
|
||
|
}
|
||
|
|
||
|
$result .= $uchr;
|
||
|
}
|
||
|
|
||
|
if ($c) {
|
||
|
ksort($c);
|
||
|
$result .= implode('', $c);
|
||
|
}
|
||
|
|
||
|
return $result;
|
||
|
}
|
||
|
|
||
|
private static function getData($file)
|
||
|
{
|
||
|
if (file_exists($file = __DIR__.'/Resources/unidata/'.$file.'.php')) {
|
||
|
return require $file;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
}
|
||
|
}
|