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507 lines
15 KiB
507 lines
15 KiB
1 year ago
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\String;
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use Symfony\Component\String\Exception\ExceptionInterface;
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use Symfony\Component\String\Exception\InvalidArgumentException;
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use Symfony\Component\String\Exception\RuntimeException;
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/**
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* Represents a binary-safe string of bytes.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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* @author Hugo Hamon <hugohamon@neuf.fr>
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*
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* @throws ExceptionInterface
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*/
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class ByteString extends AbstractString
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{
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private const ALPHABET_ALPHANUMERIC = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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public function __construct(string $string = '')
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{
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$this->string = $string;
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}
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/*
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* The following method was derived from code of the Hack Standard Library (v4.40 - 2020-05-03)
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*
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* https://github.com/hhvm/hsl/blob/80a42c02f036f72a42f0415e80d6b847f4bf62d5/src/random/private.php#L16
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*
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* Code subject to the MIT license (https://github.com/hhvm/hsl/blob/master/LICENSE).
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*
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* Copyright (c) 2004-2020, Facebook, Inc. (https://www.facebook.com/)
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*/
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public static function fromRandom(int $length = 16, string $alphabet = null): self
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{
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if ($length <= 0) {
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throw new InvalidArgumentException(sprintf('A strictly positive length is expected, "%d" given.', $length));
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}
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$alphabet = $alphabet ?? self::ALPHABET_ALPHANUMERIC;
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$alphabetSize = \strlen($alphabet);
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$bits = (int) ceil(log($alphabetSize, 2.0));
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if ($bits <= 0 || $bits > 56) {
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throw new InvalidArgumentException('The length of the alphabet must in the [2^1, 2^56] range.');
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}
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$ret = '';
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while ($length > 0) {
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$urandomLength = (int) ceil(2 * $length * $bits / 8.0);
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$data = random_bytes($urandomLength);
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$unpackedData = 0;
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$unpackedBits = 0;
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for ($i = 0; $i < $urandomLength && $length > 0; ++$i) {
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// Unpack 8 bits
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$unpackedData = ($unpackedData << 8) | \ord($data[$i]);
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$unpackedBits += 8;
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// While we have enough bits to select a character from the alphabet, keep
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// consuming the random data
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for (; $unpackedBits >= $bits && $length > 0; $unpackedBits -= $bits) {
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$index = ($unpackedData & ((1 << $bits) - 1));
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$unpackedData >>= $bits;
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// Unfortunately, the alphabet size is not necessarily a power of two.
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// Worst case, it is 2^k + 1, which means we need (k+1) bits and we
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// have around a 50% chance of missing as k gets larger
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if ($index < $alphabetSize) {
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$ret .= $alphabet[$index];
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--$length;
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}
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}
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}
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}
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return new static($ret);
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}
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public function bytesAt(int $offset): array
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{
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$str = $this->string[$offset] ?? '';
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return '' === $str ? [] : [\ord($str)];
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}
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public function append(string ...$suffix): parent
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{
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$str = clone $this;
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$str->string .= 1 >= \count($suffix) ? ($suffix[0] ?? '') : implode('', $suffix);
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return $str;
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}
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public function camel(): parent
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{
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$str = clone $this;
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$str->string = lcfirst(str_replace(' ', '', ucwords(preg_replace('/[^a-zA-Z0-9\x7f-\xff]++/', ' ', $this->string))));
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return $str;
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}
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public function chunk(int $length = 1): array
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{
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if (1 > $length) {
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throw new InvalidArgumentException('The chunk length must be greater than zero.');
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}
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if ('' === $this->string) {
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return [];
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}
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$str = clone $this;
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$chunks = [];
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foreach (str_split($this->string, $length) as $chunk) {
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$str->string = $chunk;
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$chunks[] = clone $str;
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}
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return $chunks;
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}
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public function endsWith($suffix): bool
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{
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if ($suffix instanceof parent) {
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$suffix = $suffix->string;
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} elseif (\is_array($suffix) || $suffix instanceof \Traversable) {
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return parent::endsWith($suffix);
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} else {
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$suffix = (string) $suffix;
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}
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return '' !== $suffix && \strlen($this->string) >= \strlen($suffix) && 0 === substr_compare($this->string, $suffix, -\strlen($suffix), null, $this->ignoreCase);
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}
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public function equalsTo($string): bool
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{
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if ($string instanceof parent) {
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$string = $string->string;
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} elseif (\is_array($string) || $string instanceof \Traversable) {
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return parent::equalsTo($string);
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} else {
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$string = (string) $string;
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}
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if ('' !== $string && $this->ignoreCase) {
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return 0 === strcasecmp($string, $this->string);
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}
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return $string === $this->string;
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}
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public function folded(): parent
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{
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$str = clone $this;
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$str->string = strtolower($str->string);
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return $str;
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}
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public function indexOf($needle, int $offset = 0): ?int
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{
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if ($needle instanceof parent) {
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$needle = $needle->string;
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} elseif (\is_array($needle) || $needle instanceof \Traversable) {
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return parent::indexOf($needle, $offset);
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} else {
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$needle = (string) $needle;
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}
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if ('' === $needle) {
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return null;
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}
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$i = $this->ignoreCase ? stripos($this->string, $needle, $offset) : strpos($this->string, $needle, $offset);
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return false === $i ? null : $i;
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}
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public function indexOfLast($needle, int $offset = 0): ?int
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{
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if ($needle instanceof parent) {
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$needle = $needle->string;
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} elseif (\is_array($needle) || $needle instanceof \Traversable) {
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return parent::indexOfLast($needle, $offset);
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} else {
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$needle = (string) $needle;
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}
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if ('' === $needle) {
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return null;
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}
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$i = $this->ignoreCase ? strripos($this->string, $needle, $offset) : strrpos($this->string, $needle, $offset);
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return false === $i ? null : $i;
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}
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public function isUtf8(): bool
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{
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return '' === $this->string || preg_match('//u', $this->string);
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}
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public function join(array $strings, string $lastGlue = null): parent
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{
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$str = clone $this;
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$tail = null !== $lastGlue && 1 < \count($strings) ? $lastGlue.array_pop($strings) : '';
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$str->string = implode($this->string, $strings).$tail;
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return $str;
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}
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public function length(): int
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{
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return \strlen($this->string);
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}
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public function lower(): parent
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{
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$str = clone $this;
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$str->string = strtolower($str->string);
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return $str;
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}
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public function match(string $regexp, int $flags = 0, int $offset = 0): array
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{
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$match = ((PREG_PATTERN_ORDER | PREG_SET_ORDER) & $flags) ? 'preg_match_all' : 'preg_match';
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if ($this->ignoreCase) {
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$regexp .= 'i';
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}
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set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
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try {
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if (false === $match($regexp, $this->string, $matches, $flags | PREG_UNMATCHED_AS_NULL, $offset)) {
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$lastError = preg_last_error();
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foreach (get_defined_constants(true)['pcre'] as $k => $v) {
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if ($lastError === $v && '_ERROR' === substr($k, -6)) {
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throw new RuntimeException('Matching failed with '.$k.'.');
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}
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}
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throw new RuntimeException('Matching failed with unknown error code.');
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}
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} finally {
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restore_error_handler();
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}
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return $matches;
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}
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public function padBoth(int $length, string $padStr = ' '): parent
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{
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$str = clone $this;
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$str->string = str_pad($this->string, $length, $padStr, STR_PAD_BOTH);
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return $str;
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}
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public function padEnd(int $length, string $padStr = ' '): parent
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{
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$str = clone $this;
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$str->string = str_pad($this->string, $length, $padStr, STR_PAD_RIGHT);
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return $str;
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}
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public function padStart(int $length, string $padStr = ' '): parent
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{
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$str = clone $this;
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$str->string = str_pad($this->string, $length, $padStr, STR_PAD_LEFT);
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return $str;
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}
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public function prepend(string ...$prefix): parent
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{
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$str = clone $this;
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$str->string = (1 >= \count($prefix) ? ($prefix[0] ?? '') : implode('', $prefix)).$str->string;
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return $str;
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}
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public function replace(string $from, string $to): parent
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{
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$str = clone $this;
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if ('' !== $from) {
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$str->string = $this->ignoreCase ? str_ireplace($from, $to, $this->string) : str_replace($from, $to, $this->string);
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}
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return $str;
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}
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public function replaceMatches(string $fromRegexp, $to): parent
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{
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if ($this->ignoreCase) {
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$fromRegexp .= 'i';
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}
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if (\is_array($to)) {
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if (!\is_callable($to)) {
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throw new \TypeError(sprintf('Argument 2 passed to "%s::replaceMatches()" must be callable, array given.', static::class));
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}
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$replace = 'preg_replace_callback';
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} else {
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$replace = $to instanceof \Closure ? 'preg_replace_callback' : 'preg_replace';
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}
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set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
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try {
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if (null === $string = $replace($fromRegexp, $to, $this->string)) {
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$lastError = preg_last_error();
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foreach (get_defined_constants(true)['pcre'] as $k => $v) {
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if ($lastError === $v && '_ERROR' === substr($k, -6)) {
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throw new RuntimeException('Matching failed with '.$k.'.');
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}
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}
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throw new RuntimeException('Matching failed with unknown error code.');
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}
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|
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} finally {
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|
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restore_error_handler();
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}
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||
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$str = clone $this;
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$str->string = $string;
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return $str;
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}
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public function reverse(): parent
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|
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{
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$str = clone $this;
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$str->string = strrev($str->string);
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return $str;
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}
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public function slice(int $start = 0, int $length = null): parent
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{
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$str = clone $this;
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$str->string = (string) substr($this->string, $start, $length ?? \PHP_INT_MAX);
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return $str;
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}
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|
public function snake(): parent
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{
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$str = $this->camel()->title();
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$str->string = strtolower(preg_replace(['/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'], '\1_\2', $str->string));
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return $str;
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}
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||
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public function splice(string $replacement, int $start = 0, int $length = null): parent
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||
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{
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$str = clone $this;
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||
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$str->string = substr_replace($this->string, $replacement, $start, $length ?? \PHP_INT_MAX);
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||
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return $str;
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}
|
||
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||
|
|
public function split(string $delimiter, int $limit = null, int $flags = null): array
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||
|
|
{
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||
|
|
if (1 > $limit = $limit ?? \PHP_INT_MAX) {
|
||
|
|
throw new InvalidArgumentException('Split limit must be a positive integer.');
|
||
|
|
}
|
||
|
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|
||
|
|
if ('' === $delimiter) {
|
||
|
|
throw new InvalidArgumentException('Split delimiter is empty.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null !== $flags) {
|
||
|
|
return parent::split($delimiter, $limit, $flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
$str = clone $this;
|
||
|
|
$chunks = $this->ignoreCase
|
||
|
|
? preg_split('{'.preg_quote($delimiter).'}iD', $this->string, $limit)
|
||
|
|
: explode($delimiter, $this->string, $limit);
|
||
|
|
|
||
|
|
foreach ($chunks as &$chunk) {
|
||
|
|
$str->string = $chunk;
|
||
|
|
$chunk = clone $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $chunks;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function startsWith($prefix): bool
|
||
|
|
{
|
||
|
|
if ($prefix instanceof parent) {
|
||
|
|
$prefix = $prefix->string;
|
||
|
|
} elseif (!\is_string($prefix)) {
|
||
|
|
return parent::startsWith($prefix);
|
||
|
|
}
|
||
|
|
|
||
|
|
return '' !== $prefix && 0 === ($this->ignoreCase ? strncasecmp($this->string, $prefix, \strlen($prefix)) : strncmp($this->string, $prefix, \strlen($prefix)));
|
||
|
|
}
|
||
|
|
|
||
|
|
public function title(bool $allWords = false): parent
|
||
|
|
{
|
||
|
|
$str = clone $this;
|
||
|
|
$str->string = $allWords ? ucwords($str->string) : ucfirst($str->string);
|
||
|
|
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function toUnicodeString(string $fromEncoding = null): UnicodeString
|
||
|
|
{
|
||
|
|
return new UnicodeString($this->toCodePointString($fromEncoding)->string);
|
||
|
|
}
|
||
|
|
|
||
|
|
public function toCodePointString(string $fromEncoding = null): CodePointString
|
||
|
|
{
|
||
|
|
$u = new CodePointString();
|
||
|
|
|
||
|
|
if (\in_array($fromEncoding, [null, 'utf8', 'utf-8', 'UTF8', 'UTF-8'], true) && preg_match('//u', $this->string)) {
|
||
|
|
$u->string = $this->string;
|
||
|
|
|
||
|
|
return $u;
|
||
|
|
}
|
||
|
|
|
||
|
|
set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
|
||
|
|
|
||
|
|
try {
|
||
|
|
try {
|
||
|
|
$validEncoding = false !== mb_detect_encoding($this->string, $fromEncoding ?? 'Windows-1252', true);
|
||
|
|
} catch (InvalidArgumentException $e) {
|
||
|
|
if (!\function_exists('iconv')) {
|
||
|
|
throw $e;
|
||
|
|
}
|
||
|
|
|
||
|
|
$u->string = iconv($fromEncoding ?? 'Windows-1252', 'UTF-8', $this->string);
|
||
|
|
|
||
|
|
return $u;
|
||
|
|
}
|
||
|
|
} finally {
|
||
|
|
restore_error_handler();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$validEncoding) {
|
||
|
|
throw new InvalidArgumentException(sprintf('Invalid "%s" string.', $fromEncoding ?? 'Windows-1252'));
|
||
|
|
}
|
||
|
|
|
||
|
|
$u->string = mb_convert_encoding($this->string, 'UTF-8', $fromEncoding ?? 'Windows-1252');
|
||
|
|
|
||
|
|
return $u;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function trim(string $chars = " \t\n\r\0\x0B\x0C"): parent
|
||
|
|
{
|
||
|
|
$str = clone $this;
|
||
|
|
$str->string = trim($str->string, $chars);
|
||
|
|
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function trimEnd(string $chars = " \t\n\r\0\x0B\x0C"): parent
|
||
|
|
{
|
||
|
|
$str = clone $this;
|
||
|
|
$str->string = rtrim($str->string, $chars);
|
||
|
|
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function trimStart(string $chars = " \t\n\r\0\x0B\x0C"): parent
|
||
|
|
{
|
||
|
|
$str = clone $this;
|
||
|
|
$str->string = ltrim($str->string, $chars);
|
||
|
|
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function upper(): parent
|
||
|
|
{
|
||
|
|
$str = clone $this;
|
||
|
|
$str->string = strtoupper($str->string);
|
||
|
|
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function width(bool $ignoreAnsiDecoration = true): int
|
||
|
|
{
|
||
|
|
$string = preg_match('//u', $this->string) ? $this->string : preg_replace('/[\x80-\xFF]/', '?', $this->string);
|
||
|
|
|
||
|
|
return (new CodePointString($string))->width($ignoreAnsiDecoration);
|
||
|
|
}
|
||
|
|
}
|