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AbstractString.php
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<?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 PerformanceBooster\Symfony\Component\String; use PerformanceBooster\Symfony\Component\String\Exception\ExceptionInterface; use PerformanceBooster\Symfony\Component\String\Exception\InvalidArgumentException; use PerformanceBooster\Symfony\Component\String\Exception\RuntimeException; /** * Represents a string of abstract characters. * * Unicode defines 3 types of "characters" (bytes, code points and grapheme clusters). * This class is the abstract type to use as a type-hint when the logic you want to * implement doesn't care about the exact variant it deals with. * * @author Nicolas Grekas <p@tchwork.com> * @author Hugo Hamon <hugohamon@neuf.fr> * * @throws ExceptionInterface */ abstract class AbstractString implements \Stringable, \JsonSerializable { public const PREG_PATTERN_ORDER = \PREG_PATTERN_ORDER; public const PREG_SET_ORDER = \PREG_SET_ORDER; public const PREG_OFFSET_CAPTURE = \PREG_OFFSET_CAPTURE; public const PREG_UNMATCHED_AS_NULL = \PREG_UNMATCHED_AS_NULL; public const PREG_SPLIT = 0; public const PREG_SPLIT_NO_EMPTY = \PREG_SPLIT_NO_EMPTY; public const PREG_SPLIT_DELIM_CAPTURE = \PREG_SPLIT_DELIM_CAPTURE; public const PREG_SPLIT_OFFSET_CAPTURE = \PREG_SPLIT_OFFSET_CAPTURE; protected string $string = ''; protected ?bool $ignoreCase = \false; public abstract function __construct(string $string = ''); /** * Unwraps instances of AbstractString back to strings. * * @return string[]|array */ public static function unwrap(array $values) : array { foreach ($values as $k => $v) { if ($v instanceof self) { $values[$k] = $v->__toString(); } elseif (\is_array($v) && $values[$k] !== ($v = static::unwrap($v))) { $values[$k] = $v; } } return $values; } /** * Wraps (and normalizes) strings in instances of AbstractString. * * @return static[]|array */ public static function wrap(array $values) : array { $i = 0; $keys = null; foreach ($values as $k => $v) { if (\is_string($k) && '' !== $k && $k !== ($j = (string) new static($k))) { $keys ??= \array_keys($values); $keys[$i] = $j; } if (\is_string($v)) { $values[$k] = new static($v); } elseif (\is_array($v) && $values[$k] !== ($v = static::wrap($v))) { $values[$k] = $v; } ++$i; } return null !== $keys ? \array_combine($keys, $values) : $values; } /** * @param string|string[] $needle */ public function after(string|iterable $needle, bool $includeNeedle = \false, int $offset = 0) : static { $str = clone $this; $i = \PHP_INT_MAX; if (\is_string($needle)) { $needle = [$needle]; } foreach ($needle as $n) { $n = (string) $n; $j = $this->indexOf($n, $offset); if (null !== $j && $j < $i) { $i = $j; $str->string = $n; } } if (\PHP_INT_MAX === $i) { return $str; } if (!$includeNeedle) { $i += $str->length(); } return $this->slice($i); } /** * @param string|string[] $needle */ public function afterLast(string|iterable $needle, bool $includeNeedle = \false, int $offset = 0) : static { $str = clone $this; $i = null; if (\is_string($needle)) { $needle = [$needle]; } foreach ($needle as $n) { $n = (string) $n; $j = $this->indexOfLast($n, $offset); if (null !== $j && $j >= $i) { $i = $offset = $j; $str->string = $n; } } if (null === $i) { return $str; } if (!$includeNeedle) { $i += $str->length(); } return $this->slice($i); } public abstract function append(string ...$suffix) : static; /** * @param string|string[] $needle */ public function before(string|iterable $needle, bool $includeNeedle = \false, int $offset = 0) : static { $str = clone $this; $i = \PHP_INT_MAX; if (\is_string($needle)) { $needle = [$needle]; } foreach ($needle as $n) { $n = (string) $n; $j = $this->indexOf($n, $offset); if (null !== $j && $j < $i) { $i = $j; $str->string = $n; } } if (\PHP_INT_MAX === $i) { return $str; } if ($includeNeedle) { $i += $str->length(); } return $this->slice(0, $i); } /** * @param string|string[] $needle */ public function beforeLast(string|iterable $needle, bool $includeNeedle = \false, int $offset = 0) : static { $str = clone $this; $i = null; if (\is_string($needle)) { $needle = [$needle]; } foreach ($needle as $n) { $n = (string) $n; $j = $this->indexOfLast($n, $offset); if (null !== $j && $j >= $i) { $i = $offset = $j; $str->string = $n; } } if (null === $i) { return $str; } if ($includeNeedle) { $i += $str->length(); } return $this->slice(0, $i); } /** * @return int[] */ public function bytesAt(int $offset) : array { $str = $this->slice($offset, 1); return '' === $str->string ? [] : \array_values(\unpack('C*', $str->string)); } public abstract function camel() : static; /** * @return static[] */ public abstract function chunk(int $length = 1) : array; public function collapseWhitespace() : static { $str = clone $this; $str->string = \trim(\preg_replace("/(?:[ \n\r\t\f]{2,}+|[\n\r\t\f])/", ' ', $str->string), " \n\r\t\f"); return $str; } /** * @param string|string[] $needle */ public function containsAny(string|iterable $needle) : bool { return null !== $this->indexOf($needle); } /** * @param string|string[] $suffix */ public function endsWith(string|iterable $suffix) : bool { if (\is_string($suffix)) { throw new \TypeError(\sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class)); } foreach ($suffix as $s) { if ($this->endsWith((string) $s)) { return \true; } } return \false; } public function ensureEnd(string $suffix) : static { if (!$this->endsWith($suffix)) { return $this->append($suffix); } $suffix = \preg_quote($suffix); $regex = '{(' . $suffix . ')(?:' . $suffix . ')++$}D'; return $this->replaceMatches($regex . ($this->ignoreCase ? 'i' : ''), '$1'); } public function ensureStart(string $prefix) : static { $prefix = new static($prefix); if (!$this->startsWith($prefix)) { return $this->prepend($prefix); } $str = clone $this; $i = $prefixLen = $prefix->length(); while ($this->indexOf($prefix, $i) === $i) { $str = $str->slice($prefixLen); $i += $prefixLen; } return $str; } /** * @param string|string[] $string */ public function equalsTo(string|iterable $string) : bool { if (\is_string($string)) { throw new \TypeError(\sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class)); } foreach ($string as $s) { if ($this->equalsTo((string) $s)) { return \true; } } return \false; } public abstract function folded() : static; public function ignoreCase() : static { $str = clone $this; $str->ignoreCase = \true; return $str; } /** * @param string|string[] $needle */ public function indexOf(string|iterable $needle, int $offset = 0) : ?int { if (\is_string($needle)) { throw new \TypeError(\sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class)); } $i = \PHP_INT_MAX; foreach ($needle as $n) { $j = $this->indexOf((string) $n, $offset); if (null !== $j && $j < $i) { $i = $j; } } return \PHP_INT_MAX === $i ? null : $i; } /** * @param string|string[] $needle */ public function indexOfLast(string|iterable $needle, int $offset = 0) : ?int { if (\is_string($needle)) { throw new \TypeError(\sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class)); } $i = null; foreach ($needle as $n) { $j = $this->indexOfLast((string) $n, $offset); if (null !== $j && $j >= $i) { $i = $offset = $j; } } return $i; } public function isEmpty() : bool { return '' === $this->string; } public abstract function join(array $strings, ?string $lastGlue = null) : static; public function jsonSerialize() : string { return $this->string; } public abstract function length() : int; public abstract function lower() : static; /** * Matches the string using a regular expression. * * Pass PREG_PATTERN_ORDER or PREG_SET_ORDER as $flags to get all occurrences matching the regular expression. * * @return array All matches in a multi-dimensional array ordered according to flags */ public abstract function match(string $regexp, int $flags = 0, int $offset = 0) : array; public abstract function padBoth(int $length, string $padStr = ' ') : static; public abstract function padEnd(int $length, string $padStr = ' ') : static; public abstract function padStart(int $length, string $padStr = ' ') : static; public abstract function prepend(string ...$prefix) : static; public function repeat(int $multiplier) : static { if (0 > $multiplier) { throw new InvalidArgumentException(\sprintf('Multiplier must be positive, %d given.', $multiplier)); } $str = clone $this; $str->string = \str_repeat($str->string, $multiplier); return $str; } public abstract function replace(string $from, string $to) : static; public abstract function replaceMatches(string $fromRegexp, string|callable $to) : static; public abstract function reverse() : static; public abstract function slice(int $start = 0, ?int $length = null) : static; public abstract function snake() : static; public function kebab() : static { return $this->snake()->replace('_', '-'); } public abstract function splice(string $replacement, int $start = 0, ?int $length = null) : static; /** * @return static[] */ public function split(string $delimiter, ?int $limit = null, ?int $flags = null) : array { if (null === $flags) { throw new \TypeError('Split behavior when $flags is null must be implemented by child classes.'); } if ($this->ignoreCase) { $delimiter .= 'i'; } \set_error_handler(static fn($t, $m) => throw new InvalidArgumentException($m)); try { if (\false === ($chunks = \preg_split($delimiter, $this->string, $limit, $flags))) { throw new RuntimeException('Splitting failed with error: ' . \preg_last_error_msg()); } } finally { \restore_error_handler(); } $str = clone $this; if (self::PREG_SPLIT_OFFSET_CAPTURE & $flags) { foreach ($chunks as &$chunk) { $str->string = $chunk[0]; $chunk[0] = clone $str; } } else { foreach ($chunks as &$chunk) { $str->string = $chunk; $chunk = clone $str; } } return $chunks; } /** * @param string|string[] $prefix */ public function startsWith(string|iterable $prefix) : bool { if (\is_string($prefix)) { throw new \TypeError(\sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class)); } foreach ($prefix as $prefix) { if ($this->startsWith((string) $prefix)) { return \true; } } return \false; } public abstract function title(bool $allWords = \false) : static; public function toByteString(?string $toEncoding = null) : ByteString { $b = new ByteString(); $toEncoding = \in_array($toEncoding, ['utf8', 'utf-8', 'UTF8'], \true) ? 'UTF-8' : $toEncoding; if (null === $toEncoding || $toEncoding === ($fromEncoding = $this instanceof AbstractUnicodeString || \preg_match('//u', $b->string) ? 'UTF-8' : 'Windows-1252')) { $b->string = $this->string; return $b; } try { $b->string = \mb_convert_encoding($this->string, $toEncoding, 'UTF-8'); } catch (\ValueError $e) { if (!\function_exists('iconv')) { throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e); } $b->string = \iconv('UTF-8', $toEncoding, $this->string); } return $b; } public function toCodePointString() : CodePointString { return new CodePointString($this->string); } public function toString() : string { return $this->string; } public function toUnicodeString() : UnicodeString { return new UnicodeString($this->string); } public abstract function trim(string $chars = " \t\n\r\x00\v\f ") : static; public abstract function trimEnd(string $chars = " \t\n\r\x00\v\f ") : static; /** * @param string|string[] $prefix */ public function trimPrefix($prefix) : static { if (\is_array($prefix) || $prefix instanceof \Traversable) { // don't use is_iterable(), it's slow foreach ($prefix as $s) { $t = $this->trimPrefix($s); if ($t->string !== $this->string) { return $t; } } return clone $this; } $str = clone $this; if ($prefix instanceof self) { $prefix = $prefix->string; } else { $prefix = (string) $prefix; } if ('' !== $prefix && \strlen($this->string) >= \strlen($prefix) && 0 === \substr_compare($this->string, $prefix, 0, \strlen($prefix), $this->ignoreCase)) { $str->string = \substr($this->string, \strlen($prefix)); } return $str; } public abstract function trimStart(string $chars = " \t\n\r\x00\v\f ") : static; /** * @param string|string[] $suffix */ public function trimSuffix($suffix) : static { if (\is_array($suffix) || $suffix instanceof \Traversable) { // don't use is_iterable(), it's slow foreach ($suffix as $s) { $t = $this->trimSuffix($s); if ($t->string !== $this->string) { return $t; } } return clone $this; } $str = clone $this; if ($suffix instanceof self) { $suffix = $suffix->string; } else { $suffix = (string) $suffix; } if ('' !== $suffix && \strlen($this->string) >= \strlen($suffix) && 0 === \substr_compare($this->string, $suffix, -\strlen($suffix), null, $this->ignoreCase)) { $str->string = \substr($this->string, 0, -\strlen($suffix)); } return $str; } public function truncate(int $length, string $ellipsis = '', bool|TruncateMode $cut = TruncateMode::Char) : static { $stringLength = $this->length(); if ($stringLength <= $length) { return clone $this; } $ellipsisLength = '' !== $ellipsis ? (new static($ellipsis))->length() : 0; if ($length < $ellipsisLength) { $ellipsisLength = 0; } $desiredLength = $length; if (TruncateMode::WordAfter === $cut || !$cut) { if (null === ($length = $this->indexOf([' ', "\r", "\n", "\t"], ($length ?: 1) - 1))) { return clone $this; } $length += $ellipsisLength; } elseif (TruncateMode::WordBefore === $cut && null !== $this->indexOf([' ', "\r", "\n", "\t"], ($length ?: 1) - 1)) { $length += $ellipsisLength; } $str = $this->slice(0, $length - $ellipsisLength); if (TruncateMode::WordBefore === $cut) { if (0 === $ellipsisLength && $desiredLength === $this->indexOf([' ', "\r", "\n", "\t"], $length)) { return $str; } $str = $str->beforeLast([' ', "\r", "\n", "\t"]); } return $ellipsisLength ? $str->trimEnd()->append($ellipsis) : $str; } public abstract function upper() : static; /** * Returns the printable length on a terminal. */ public abstract function width(bool $ignoreAnsiDecoration = \true) : int; public function wordwrap(int $width = 75, string $break = "\n", bool $cut = \false) : static { $lines = '' !== $break ? $this->split($break) : [clone $this]; $chars = []; $mask = ''; if (1 === \count($lines) && '' === $lines[0]->string) { return $lines[0]; } foreach ($lines as $i => $line) { if ($i) { $chars[] = $break; $mask .= '#'; } foreach ($line->chunk() as $char) { $chars[] = $char->string; $mask .= ' ' === $char->string ? ' ' : '?'; } } $string = ''; $j = 0; $b = $i = -1; $mask = \wordwrap($mask, $width, '#', $cut); while (\false !== ($b = \strpos($mask, '#', $b + 1))) { for (++$i; $i < $b; ++$i) { $string .= $chars[$j]; unset($chars[$j++]); } if ($break === $chars[$j] || ' ' === $chars[$j]) { unset($chars[$j++]); } $string .= $break; } $str = clone $this; $str->string = $string . \implode('', $chars); return $str; } public function __sleep() : array { return ['string']; } public function __clone() { $this->ignoreCase = \false; } public function __toString() : string { return $this->string; } }