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<?php |
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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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class UnicodeString extends AbstractUnicodeString |
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{ |
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public function __construct(string $string = '') |
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{ |
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$this->string = normalizer_is_normalized($string) ? $string : normalizer_normalize($string); |
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if (false === $this->string) { |
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throw new InvalidArgumentException('Invalid UTF-8 string.'); |
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} |
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} |
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public function append(string ...$suffix): AbstractString |
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{ |
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$str = clone $this; |
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$str->string = $this->string.(1 >= \count($suffix) ? ($suffix[0] ?? '') : implode('', $suffix)); |
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normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string); |
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if (false === $str->string) { |
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throw new InvalidArgumentException('Invalid UTF-8 string.'); |
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} |
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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 ('' === $this->string) { |
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return []; |
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} |
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$rx = '/('; |
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while (65535 < $length) { |
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$rx .= '\X{65535}'; |
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$length -= 65535; |
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} |
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$rx .= '\X{'.$length.'})/u'; |
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$str = clone $this; |
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$chunks = []; |
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foreach (preg_split($rx, $this->string, -1, \PREG_SPLIT_DELIM_CAPTURE | \PREG_SPLIT_NO_EMPTY) 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 ($suffix instanceof AbstractString) { |
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$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) $suffix; |
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} |
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$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC; |
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normalizer_is_normalized($suffix, $form) ?: $suffix = normalizer_normalize($suffix, $form); |
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if ('' === $suffix || false === $suffix) { |
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return false; |
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} |
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if ($this->ignoreCase) { |
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return 0 === mb_stripos(grapheme_extract($this->string, \strlen($suffix), \GRAPHEME_EXTR_MAXBYTES, \strlen($this->string) - \strlen($suffix)), $suffix, 0, 'UTF-8'); |
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} |
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return $suffix === grapheme_extract($this->string, \strlen($suffix), \GRAPHEME_EXTR_MAXBYTES, \strlen($this->string) - \strlen($suffix)); |
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} |
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public function equalsTo($string): bool |
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{ |
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if ($string instanceof AbstractString) { |
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$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) $string; |
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} |
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$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC; |
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normalizer_is_normalized($string, $form) ?: $string = normalizer_normalize($string, $form); |
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if ('' !== $string && false !== $string && $this->ignoreCase) { |
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return \strlen($string) === \strlen($this->string) && 0 === mb_stripos($this->string, $string, 0, 'UTF-8'); |
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} |
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return $string === $this->string; |
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} |
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public function indexOf($needle, int $offset = 0): ?int |
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{ |
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if ($needle instanceof AbstractString) { |
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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) $needle; |
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} |
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$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC; |
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normalizer_is_normalized($needle, $form) ?: $needle = normalizer_normalize($needle, $form); |
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if ('' === $needle || false === $needle) { |
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return null; |
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} |
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try { |
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$i = $this->ignoreCase ? grapheme_stripos($this->string, $needle, $offset) : grapheme_strpos($this->string, $needle, $offset); |
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} catch (\ValueError $e) { |
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return null; |
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} |
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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 AbstractString) { |
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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) $needle; |
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} |
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$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC; |
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normalizer_is_normalized($needle, $form) ?: $needle = normalizer_normalize($needle, $form); |
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if ('' === $needle || false === $needle) { |
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return null; |
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} |
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$string = $this->string; |
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if (0 > $offset) { |
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if (0 > $offset += grapheme_strlen($needle)) { |
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$string = grapheme_substr($string, 0, $offset); |
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} |
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$offset = 0; |
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} |
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$i = $this->ignoreCase ? grapheme_strripos($string, $needle, $offset) : grapheme_strrpos($string, $needle, $offset); |
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return false === $i ? null : $i; |
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} |
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public function join(array $strings, string $lastGlue = null): AbstractString |
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{ |
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$str = parent::join($strings, $lastGlue); |
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normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string); |
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return $str; |
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} |
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public function length(): int |
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{ |
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return grapheme_strlen($this->string); |
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} |
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public function normalize(int $form = self::NFC): parent |
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{ |
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$str = clone $this; |
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if (\in_array($form, [self::NFC, self::NFKC], true)) { |
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normalizer_is_normalized($str->string, $form) ?: $str->string = normalizer_normalize($str->string, $form); |
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} elseif (!\in_array($form, [self::NFD, self::NFKD], true)) { |
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throw new InvalidArgumentException('Unsupported normalization form.'); |
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} elseif (!normalizer_is_normalized($str->string, $form)) { |
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$str->string = normalizer_normalize($str->string, $form); |
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$str->ignoreCase = null; |
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} |
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return $str; |
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} |
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public function prepend(string ...$prefix): AbstractString |
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{ |
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$str = clone $this; |
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$str->string = (1 >= \count($prefix) ? ($prefix[0] ?? '') : implode('', $prefix)).$this->string; |
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normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string); |
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if (false === $str->string) { |
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throw new InvalidArgumentException('Invalid UTF-8 string.'); |
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} |
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return $str; |
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} |
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public function replace(string $from, string $to): AbstractString |
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{ |
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$str = clone $this; |
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normalizer_is_normalized($from) ?: $from = normalizer_normalize($from); |
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if ('' !== $from && false !== $from) { |
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$tail = $str->string; |
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$result = ''; |
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$indexOf = $this->ignoreCase ? 'grapheme_stripos' : 'grapheme_strpos'; |
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while ('' !== $tail && false !== $i = $indexOf($tail, $from)) { |
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$slice = grapheme_substr($tail, 0, $i); |
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$result .= $slice.$to; |
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$tail = substr($tail, \strlen($slice) + \strlen($from)); |
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} |
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$str->string = $result.$tail; |
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normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string); |
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if (false === $str->string) { |
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throw new InvalidArgumentException('Invalid UTF-8 string.'); |
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} |
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} |
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return $str; |
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} |
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public function replaceMatches(string $fromRegexp, $to): AbstractString |
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{ |
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$str = parent::replaceMatches($fromRegexp, $to); |
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normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string); |
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return $str; |
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} |
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public function slice(int $start = 0, int $length = null): AbstractString |
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{ |
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$str = clone $this; |
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if (\PHP_VERSION_ID < 80000 && 0 > $start && grapheme_strlen($this->string) < -$start) { |
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$start = 0; |
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} |
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$str->string = (string) grapheme_substr($this->string, $start, $length ?? 2147483647); |
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return $str; |
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} |
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public function splice(string $replacement, int $start = 0, int $length = null): AbstractString |
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{ |
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$str = clone $this; |
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if (\PHP_VERSION_ID < 80000 && 0 > $start && grapheme_strlen($this->string) < -$start) { |
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$start = 0; |
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} |
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$start = $start ? \strlen(grapheme_substr($this->string, 0, $start)) : 0; |
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$length = $length ? \strlen(grapheme_substr($this->string, $start, $length ?? 2147483647)) : $length; |
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$str->string = substr_replace($this->string, $replacement, $start, $length ?? 2147483647); |
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normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string); |
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if (false === $str->string) { |
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throw new InvalidArgumentException('Invalid UTF-8 string.'); |
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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 ?? 2147483647) { |
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throw new InvalidArgumentException('Split limit must be a positive integer.'); |
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} |
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if ('' === $delimiter) { |
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throw new InvalidArgumentException('Split delimiter is empty.'); |
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} |
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if (null !== $flags) { |
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return parent::split($delimiter.'u', $limit, $flags); |
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} |
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normalizer_is_normalized($delimiter) ?: $delimiter = normalizer_normalize($delimiter); |
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if (false === $delimiter) { |
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throw new InvalidArgumentException('Split delimiter is not a valid UTF-8 string.'); |
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} |
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$str = clone $this; |
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$tail = $this->string; |
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$chunks = []; |
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$indexOf = $this->ignoreCase ? 'grapheme_stripos' : 'grapheme_strpos'; |
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while (1 < $limit && false !== $i = $indexOf($tail, $delimiter)) { |
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$str->string = grapheme_substr($tail, 0, $i); |
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$chunks[] = clone $str; |
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$tail = substr($tail, \strlen($str->string) + \strlen($delimiter)); |
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--$limit; |
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} |
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$str->string = $tail; |
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$chunks[] = clone $str; |
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return $chunks; |
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} |
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public function startsWith($prefix): bool |
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{ |
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if ($prefix instanceof AbstractString) { |
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$prefix = $prefix->string; |
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} elseif (\is_array($prefix) || $prefix instanceof \Traversable) { |
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return parent::startsWith($prefix); |
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} else { |
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$prefix = (string) $prefix; |
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} |
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$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC; |
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normalizer_is_normalized($prefix, $form) ?: $prefix = normalizer_normalize($prefix, $form); |
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if ('' === $prefix || false === $prefix) { |
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return false; |
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} |
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if ($this->ignoreCase) { |
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return 0 === mb_stripos(grapheme_extract($this->string, \strlen($prefix), \GRAPHEME_EXTR_MAXBYTES), $prefix, 0, 'UTF-8'); |
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} |
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return $prefix === grapheme_extract($this->string, \strlen($prefix), \GRAPHEME_EXTR_MAXBYTES); |
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} |
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public function __wakeup() |
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{ |
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if (!\is_string($this->string)) { |
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throw new \BadMethodCallException('Cannot unserialize '.__CLASS__); |
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} |
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normalizer_is_normalized($this->string) ?: $this->string = normalizer_normalize($this->string); |
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} |
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public function __clone() |
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{ |
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if (null === $this->ignoreCase) { |
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normalizer_is_normalized($this->string) ?: $this->string = normalizer_normalize($this->string); |
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} |
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$this->ignoreCase = false; |
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} |
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} |
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