378 lines
13 KiB
PHP
378 lines
13 KiB
PHP
<?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\Component\String;
|
|
|
|
use Symfony\Component\String\Exception\ExceptionInterface;
|
|
use Symfony\Component\String\Exception\InvalidArgumentException;
|
|
|
|
/**
|
|
* Represents a string of Unicode grapheme clusters encoded as UTF-8.
|
|
*
|
|
* A letter followed by combining characters (accents typically) form what Unicode defines
|
|
* as a grapheme cluster: a character as humans mean it in written texts. This class knows
|
|
* about the concept and won't split a letter apart from its combining accents. It also
|
|
* ensures all string comparisons happen on their canonically-composed representation,
|
|
* ignoring e.g. the order in which accents are listed when a letter has many of them.
|
|
*
|
|
* @see https://unicode.org/reports/tr15/
|
|
*
|
|
* @author Nicolas Grekas <p@tchwork.com>
|
|
* @author Hugo Hamon <hugohamon@neuf.fr>
|
|
*
|
|
* @throws ExceptionInterface
|
|
*/
|
|
class UnicodeString extends AbstractUnicodeString
|
|
{
|
|
public function __construct(string $string = '')
|
|
{
|
|
$this->string = normalizer_is_normalized($string) ? $string : normalizer_normalize($string);
|
|
|
|
if (false === $this->string) {
|
|
throw new InvalidArgumentException('Invalid UTF-8 string.');
|
|
}
|
|
}
|
|
|
|
public function append(string ...$suffix): AbstractString
|
|
{
|
|
$str = clone $this;
|
|
$str->string = $this->string.(1 >= \count($suffix) ? ($suffix[0] ?? '') : implode('', $suffix));
|
|
normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string);
|
|
|
|
if (false === $str->string) {
|
|
throw new InvalidArgumentException('Invalid UTF-8 string.');
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function chunk(int $length = 1): array
|
|
{
|
|
if (1 > $length) {
|
|
throw new InvalidArgumentException('The chunk length must be greater than zero.');
|
|
}
|
|
|
|
if ('' === $this->string) {
|
|
return [];
|
|
}
|
|
|
|
$rx = '/(';
|
|
while (65535 < $length) {
|
|
$rx .= '\X{65535}';
|
|
$length -= 65535;
|
|
}
|
|
$rx .= '\X{'.$length.'})/u';
|
|
|
|
$str = clone $this;
|
|
$chunks = [];
|
|
|
|
foreach (preg_split($rx, $this->string, -1, \PREG_SPLIT_DELIM_CAPTURE | \PREG_SPLIT_NO_EMPTY) as $chunk) {
|
|
$str->string = $chunk;
|
|
$chunks[] = clone $str;
|
|
}
|
|
|
|
return $chunks;
|
|
}
|
|
|
|
public function endsWith($suffix): bool
|
|
{
|
|
if ($suffix instanceof AbstractString) {
|
|
$suffix = $suffix->string;
|
|
} elseif (\is_array($suffix) || $suffix instanceof \Traversable) {
|
|
return parent::endsWith($suffix);
|
|
} else {
|
|
$suffix = (string) $suffix;
|
|
}
|
|
|
|
$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC;
|
|
normalizer_is_normalized($suffix, $form) ?: $suffix = normalizer_normalize($suffix, $form);
|
|
|
|
if ('' === $suffix || false === $suffix) {
|
|
return false;
|
|
}
|
|
|
|
if ($this->ignoreCase) {
|
|
return 0 === mb_stripos(grapheme_extract($this->string, \strlen($suffix), \GRAPHEME_EXTR_MAXBYTES, \strlen($this->string) - \strlen($suffix)), $suffix, 0, 'UTF-8');
|
|
}
|
|
|
|
return $suffix === grapheme_extract($this->string, \strlen($suffix), \GRAPHEME_EXTR_MAXBYTES, \strlen($this->string) - \strlen($suffix));
|
|
}
|
|
|
|
public function equalsTo($string): bool
|
|
{
|
|
if ($string instanceof AbstractString) {
|
|
$string = $string->string;
|
|
} elseif (\is_array($string) || $string instanceof \Traversable) {
|
|
return parent::equalsTo($string);
|
|
} else {
|
|
$string = (string) $string;
|
|
}
|
|
|
|
$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC;
|
|
normalizer_is_normalized($string, $form) ?: $string = normalizer_normalize($string, $form);
|
|
|
|
if ('' !== $string && false !== $string && $this->ignoreCase) {
|
|
return \strlen($string) === \strlen($this->string) && 0 === mb_stripos($this->string, $string, 0, 'UTF-8');
|
|
}
|
|
|
|
return $string === $this->string;
|
|
}
|
|
|
|
public function indexOf($needle, int $offset = 0): ?int
|
|
{
|
|
if ($needle instanceof AbstractString) {
|
|
$needle = $needle->string;
|
|
} elseif (\is_array($needle) || $needle instanceof \Traversable) {
|
|
return parent::indexOf($needle, $offset);
|
|
} else {
|
|
$needle = (string) $needle;
|
|
}
|
|
|
|
$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC;
|
|
normalizer_is_normalized($needle, $form) ?: $needle = normalizer_normalize($needle, $form);
|
|
|
|
if ('' === $needle || false === $needle) {
|
|
return null;
|
|
}
|
|
|
|
try {
|
|
$i = $this->ignoreCase ? grapheme_stripos($this->string, $needle, $offset) : grapheme_strpos($this->string, $needle, $offset);
|
|
} catch (\ValueError $e) {
|
|
return null;
|
|
}
|
|
|
|
return false === $i ? null : $i;
|
|
}
|
|
|
|
public function indexOfLast($needle, int $offset = 0): ?int
|
|
{
|
|
if ($needle instanceof AbstractString) {
|
|
$needle = $needle->string;
|
|
} elseif (\is_array($needle) || $needle instanceof \Traversable) {
|
|
return parent::indexOfLast($needle, $offset);
|
|
} else {
|
|
$needle = (string) $needle;
|
|
}
|
|
|
|
$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC;
|
|
normalizer_is_normalized($needle, $form) ?: $needle = normalizer_normalize($needle, $form);
|
|
|
|
if ('' === $needle || false === $needle) {
|
|
return null;
|
|
}
|
|
|
|
$string = $this->string;
|
|
|
|
if (0 > $offset) {
|
|
// workaround https://bugs.php.net/74264
|
|
if (0 > $offset += grapheme_strlen($needle)) {
|
|
$string = grapheme_substr($string, 0, $offset);
|
|
}
|
|
$offset = 0;
|
|
}
|
|
|
|
$i = $this->ignoreCase ? grapheme_strripos($string, $needle, $offset) : grapheme_strrpos($string, $needle, $offset);
|
|
|
|
return false === $i ? null : $i;
|
|
}
|
|
|
|
public function join(array $strings, string $lastGlue = null): AbstractString
|
|
{
|
|
$str = parent::join($strings, $lastGlue);
|
|
normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string);
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function length(): int
|
|
{
|
|
return grapheme_strlen($this->string);
|
|
}
|
|
|
|
/**
|
|
* @return static
|
|
*/
|
|
public function normalize(int $form = self::NFC): parent
|
|
{
|
|
$str = clone $this;
|
|
|
|
if (\in_array($form, [self::NFC, self::NFKC], true)) {
|
|
normalizer_is_normalized($str->string, $form) ?: $str->string = normalizer_normalize($str->string, $form);
|
|
} elseif (!\in_array($form, [self::NFD, self::NFKD], true)) {
|
|
throw new InvalidArgumentException('Unsupported normalization form.');
|
|
} elseif (!normalizer_is_normalized($str->string, $form)) {
|
|
$str->string = normalizer_normalize($str->string, $form);
|
|
$str->ignoreCase = null;
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function prepend(string ...$prefix): AbstractString
|
|
{
|
|
$str = clone $this;
|
|
$str->string = (1 >= \count($prefix) ? ($prefix[0] ?? '') : implode('', $prefix)).$this->string;
|
|
normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string);
|
|
|
|
if (false === $str->string) {
|
|
throw new InvalidArgumentException('Invalid UTF-8 string.');
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function replace(string $from, string $to): AbstractString
|
|
{
|
|
$str = clone $this;
|
|
normalizer_is_normalized($from) ?: $from = normalizer_normalize($from);
|
|
|
|
if ('' !== $from && false !== $from) {
|
|
$tail = $str->string;
|
|
$result = '';
|
|
$indexOf = $this->ignoreCase ? 'grapheme_stripos' : 'grapheme_strpos';
|
|
|
|
while ('' !== $tail && false !== $i = $indexOf($tail, $from)) {
|
|
$slice = grapheme_substr($tail, 0, $i);
|
|
$result .= $slice.$to;
|
|
$tail = substr($tail, \strlen($slice) + \strlen($from));
|
|
}
|
|
|
|
$str->string = $result.$tail;
|
|
normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string);
|
|
|
|
if (false === $str->string) {
|
|
throw new InvalidArgumentException('Invalid UTF-8 string.');
|
|
}
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function replaceMatches(string $fromRegexp, $to): AbstractString
|
|
{
|
|
$str = parent::replaceMatches($fromRegexp, $to);
|
|
normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string);
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function slice(int $start = 0, int $length = null): AbstractString
|
|
{
|
|
$str = clone $this;
|
|
|
|
if (\PHP_VERSION_ID < 80000 && 0 > $start && grapheme_strlen($this->string) < -$start) {
|
|
$start = 0;
|
|
}
|
|
$str->string = (string) grapheme_substr($this->string, $start, $length ?? 2147483647);
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function splice(string $replacement, int $start = 0, int $length = null): AbstractString
|
|
{
|
|
$str = clone $this;
|
|
|
|
if (\PHP_VERSION_ID < 80000 && 0 > $start && grapheme_strlen($this->string) < -$start) {
|
|
$start = 0;
|
|
}
|
|
$start = $start ? \strlen(grapheme_substr($this->string, 0, $start)) : 0;
|
|
$length = $length ? \strlen(grapheme_substr($this->string, $start, $length ?? 2147483647)) : $length;
|
|
$str->string = substr_replace($this->string, $replacement, $start, $length ?? 2147483647);
|
|
normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string);
|
|
|
|
if (false === $str->string) {
|
|
throw new InvalidArgumentException('Invalid UTF-8 string.');
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
public function split(string $delimiter, int $limit = null, int $flags = null): array
|
|
{
|
|
if (1 > $limit = $limit ?? 2147483647) {
|
|
throw new InvalidArgumentException('Split limit must be a positive integer.');
|
|
}
|
|
|
|
if ('' === $delimiter) {
|
|
throw new InvalidArgumentException('Split delimiter is empty.');
|
|
}
|
|
|
|
if (null !== $flags) {
|
|
return parent::split($delimiter.'u', $limit, $flags);
|
|
}
|
|
|
|
normalizer_is_normalized($delimiter) ?: $delimiter = normalizer_normalize($delimiter);
|
|
|
|
if (false === $delimiter) {
|
|
throw new InvalidArgumentException('Split delimiter is not a valid UTF-8 string.');
|
|
}
|
|
|
|
$str = clone $this;
|
|
$tail = $this->string;
|
|
$chunks = [];
|
|
$indexOf = $this->ignoreCase ? 'grapheme_stripos' : 'grapheme_strpos';
|
|
|
|
while (1 < $limit && false !== $i = $indexOf($tail, $delimiter)) {
|
|
$str->string = grapheme_substr($tail, 0, $i);
|
|
$chunks[] = clone $str;
|
|
$tail = substr($tail, \strlen($str->string) + \strlen($delimiter));
|
|
--$limit;
|
|
}
|
|
|
|
$str->string = $tail;
|
|
$chunks[] = clone $str;
|
|
|
|
return $chunks;
|
|
}
|
|
|
|
public function startsWith($prefix): bool
|
|
{
|
|
if ($prefix instanceof AbstractString) {
|
|
$prefix = $prefix->string;
|
|
} elseif (\is_array($prefix) || $prefix instanceof \Traversable) {
|
|
return parent::startsWith($prefix);
|
|
} else {
|
|
$prefix = (string) $prefix;
|
|
}
|
|
|
|
$form = null === $this->ignoreCase ? \Normalizer::NFD : \Normalizer::NFC;
|
|
normalizer_is_normalized($prefix, $form) ?: $prefix = normalizer_normalize($prefix, $form);
|
|
|
|
if ('' === $prefix || false === $prefix) {
|
|
return false;
|
|
}
|
|
|
|
if ($this->ignoreCase) {
|
|
return 0 === mb_stripos(grapheme_extract($this->string, \strlen($prefix), \GRAPHEME_EXTR_MAXBYTES), $prefix, 0, 'UTF-8');
|
|
}
|
|
|
|
return $prefix === grapheme_extract($this->string, \strlen($prefix), \GRAPHEME_EXTR_MAXBYTES);
|
|
}
|
|
|
|
public function __wakeup()
|
|
{
|
|
if (!\is_string($this->string)) {
|
|
throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
|
|
}
|
|
|
|
normalizer_is_normalized($this->string) ?: $this->string = normalizer_normalize($this->string);
|
|
}
|
|
|
|
public function __clone()
|
|
{
|
|
if (null === $this->ignoreCase) {
|
|
normalizer_is_normalized($this->string) ?: $this->string = normalizer_normalize($this->string);
|
|
}
|
|
|
|
$this->ignoreCase = false;
|
|
}
|
|
}
|