796 lines
20 KiB
PHP
796 lines
20 KiB
PHP
<?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 string of abstract characters.
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*
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* Unicode defines 3 types of "characters" (bytes, code points and grapheme clusters).
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* This class is the abstract type to use as a type-hint when the logic you want to
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* implement doesn't care about the exact variant it deals with.
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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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abstract class AbstractString implements \Stringable, \JsonSerializable
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{
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public const PREG_PATTERN_ORDER = \PREG_PATTERN_ORDER;
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public const PREG_SET_ORDER = \PREG_SET_ORDER;
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public const PREG_OFFSET_CAPTURE = \PREG_OFFSET_CAPTURE;
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public const PREG_UNMATCHED_AS_NULL = \PREG_UNMATCHED_AS_NULL;
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public const PREG_SPLIT = 0;
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public const PREG_SPLIT_NO_EMPTY = \PREG_SPLIT_NO_EMPTY;
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public const PREG_SPLIT_DELIM_CAPTURE = \PREG_SPLIT_DELIM_CAPTURE;
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public const PREG_SPLIT_OFFSET_CAPTURE = \PREG_SPLIT_OFFSET_CAPTURE;
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protected $string = '';
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protected $ignoreCase = false;
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abstract public function __construct(string $string = '');
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/**
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* Unwraps instances of AbstractString back to strings.
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*
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* @return string[]|array
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*/
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public static function unwrap(array $values): array
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{
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foreach ($values as $k => $v) {
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if ($v instanceof self) {
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$values[$k] = $v->__toString();
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} elseif (\is_array($v) && $values[$k] !== $v = static::unwrap($v)) {
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$values[$k] = $v;
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}
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}
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return $values;
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}
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/**
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* Wraps (and normalizes) strings in instances of AbstractString.
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*
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* @return static[]|array
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*/
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public static function wrap(array $values): array
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{
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$i = 0;
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$keys = null;
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foreach ($values as $k => $v) {
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if (\is_string($k) && '' !== $k && $k !== $j = (string) new static($k)) {
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$keys = $keys ?? array_keys($values);
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$keys[$i] = $j;
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}
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if (\is_string($v)) {
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$values[$k] = new static($v);
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} elseif (\is_array($v) && $values[$k] !== $v = static::wrap($v)) {
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$values[$k] = $v;
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}
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++$i;
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}
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return null !== $keys ? array_combine($keys, $values) : $values;
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}
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/**
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* @param string|string[] $needle
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*
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* @return static
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*/
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public function after($needle, bool $includeNeedle = false, int $offset = 0): self
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{
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$str = clone $this;
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$i = \PHP_INT_MAX;
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foreach ((array) $needle as $n) {
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$n = (string) $n;
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$j = $this->indexOf($n, $offset);
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if (null !== $j && $j < $i) {
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$i = $j;
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$str->string = $n;
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}
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}
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if (\PHP_INT_MAX === $i) {
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return $str;
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}
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if (!$includeNeedle) {
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$i += $str->length();
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}
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return $this->slice($i);
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}
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/**
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* @param string|string[] $needle
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*
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* @return static
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*/
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public function afterLast($needle, bool $includeNeedle = false, int $offset = 0): self
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{
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$str = clone $this;
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$i = null;
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foreach ((array) $needle as $n) {
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$n = (string) $n;
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$j = $this->indexOfLast($n, $offset);
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if (null !== $j && $j >= $i) {
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$i = $offset = $j;
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$str->string = $n;
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}
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}
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if (null === $i) {
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return $str;
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}
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if (!$includeNeedle) {
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$i += $str->length();
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}
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return $this->slice($i);
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}
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/**
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* @return static
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*/
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abstract public function append(string ...$suffix): self;
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/**
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* @param string|string[] $needle
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*
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* @return static
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*/
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public function before($needle, bool $includeNeedle = false, int $offset = 0): self
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{
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$str = clone $this;
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$i = \PHP_INT_MAX;
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foreach ((array) $needle as $n) {
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$n = (string) $n;
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$j = $this->indexOf($n, $offset);
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if (null !== $j && $j < $i) {
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$i = $j;
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$str->string = $n;
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}
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}
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if (\PHP_INT_MAX === $i) {
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return $str;
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}
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if ($includeNeedle) {
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$i += $str->length();
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}
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return $this->slice(0, $i);
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}
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/**
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* @param string|string[] $needle
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*
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* @return static
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*/
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public function beforeLast($needle, bool $includeNeedle = false, int $offset = 0): self
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{
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$str = clone $this;
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$i = null;
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foreach ((array) $needle as $n) {
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$n = (string) $n;
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$j = $this->indexOfLast($n, $offset);
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if (null !== $j && $j >= $i) {
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$i = $offset = $j;
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$str->string = $n;
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}
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}
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if (null === $i) {
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return $str;
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}
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if ($includeNeedle) {
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$i += $str->length();
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}
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return $this->slice(0, $i);
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}
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/**
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* @return int[]
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*/
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public function bytesAt(int $offset): array
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{
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$str = $this->slice($offset, 1);
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return '' === $str->string ? [] : array_values(unpack('C*', $str->string));
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}
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/**
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* @return static
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*/
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abstract public function camel(): self;
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/**
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* @return static[]
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*/
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abstract public function chunk(int $length = 1): array;
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/**
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* @return static
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*/
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public function collapseWhitespace(): self
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{
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$str = clone $this;
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$str->string = trim(preg_replace("/(?:[ \n\r\t\x0C]{2,}+|[\n\r\t\x0C])/", ' ', $str->string), " \n\r\t\x0C");
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return $str;
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}
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/**
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* @param string|string[] $needle
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*/
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public function containsAny($needle): bool
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{
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return null !== $this->indexOf($needle);
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}
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/**
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* @param string|string[] $suffix
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*/
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public function endsWith($suffix): bool
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{
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if (!\is_array($suffix) && !$suffix instanceof \Traversable) {
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throw new \TypeError(sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class));
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}
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foreach ($suffix as $s) {
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if ($this->endsWith((string) $s)) {
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return true;
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}
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}
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return false;
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}
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/**
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* @return static
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*/
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public function ensureEnd(string $suffix): self
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{
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if (!$this->endsWith($suffix)) {
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return $this->append($suffix);
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}
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$suffix = preg_quote($suffix);
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$regex = '{('.$suffix.')(?:'.$suffix.')++$}D';
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return $this->replaceMatches($regex.($this->ignoreCase ? 'i' : ''), '$1');
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}
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/**
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* @return static
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*/
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public function ensureStart(string $prefix): self
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{
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$prefix = new static($prefix);
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if (!$this->startsWith($prefix)) {
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return $this->prepend($prefix);
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}
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$str = clone $this;
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$i = $prefixLen = $prefix->length();
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while ($this->indexOf($prefix, $i) === $i) {
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$str = $str->slice($prefixLen);
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$i += $prefixLen;
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}
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return $str;
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}
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/**
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* @param string|string[] $string
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*/
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public function equalsTo($string): bool
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{
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if (!\is_array($string) && !$string instanceof \Traversable) {
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throw new \TypeError(sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class));
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}
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foreach ($string as $s) {
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if ($this->equalsTo((string) $s)) {
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return true;
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}
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}
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return false;
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}
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/**
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* @return static
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*/
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abstract public function folded(): self;
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/**
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* @return static
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*/
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public function ignoreCase(): self
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{
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$str = clone $this;
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$str->ignoreCase = true;
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return $str;
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}
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/**
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* @param string|string[] $needle
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*/
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public function indexOf($needle, int $offset = 0): ?int
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{
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if (!\is_array($needle) && !$needle instanceof \Traversable) {
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throw new \TypeError(sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class));
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}
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$i = \PHP_INT_MAX;
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foreach ($needle as $n) {
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$j = $this->indexOf((string) $n, $offset);
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if (null !== $j && $j < $i) {
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$i = $j;
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}
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}
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return \PHP_INT_MAX === $i ? null : $i;
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}
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/**
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* @param string|string[] $needle
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*/
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public function indexOfLast($needle, int $offset = 0): ?int
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{
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if (!\is_array($needle) && !$needle instanceof \Traversable) {
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throw new \TypeError(sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class));
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}
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$i = null;
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foreach ($needle as $n) {
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$j = $this->indexOfLast((string) $n, $offset);
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if (null !== $j && $j >= $i) {
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$i = $offset = $j;
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}
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}
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return $i;
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}
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public function isEmpty(): bool
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{
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return '' === $this->string;
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}
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/**
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* @return static
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*/
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abstract public function join(array $strings, string $lastGlue = null): self;
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public function jsonSerialize(): string
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{
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return $this->string;
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}
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abstract public function length(): int;
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/**
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* @return static
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*/
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abstract public function lower(): self;
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/**
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* Matches the string using a regular expression.
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*
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* Pass PREG_PATTERN_ORDER or PREG_SET_ORDER as $flags to get all occurrences matching the regular expression.
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*
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* @return array All matches in a multi-dimensional array ordered according to flags
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*/
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abstract public function match(string $regexp, int $flags = 0, int $offset = 0): array;
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/**
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* @return static
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*/
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abstract public function padBoth(int $length, string $padStr = ' '): self;
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/**
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* @return static
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*/
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abstract public function padEnd(int $length, string $padStr = ' '): self;
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/**
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* @return static
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*/
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abstract public function padStart(int $length, string $padStr = ' '): self;
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/**
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* @return static
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*/
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abstract public function prepend(string ...$prefix): self;
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/**
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* @return static
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*/
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public function repeat(int $multiplier): self
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{
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if (0 > $multiplier) {
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throw new InvalidArgumentException(sprintf('Multiplier must be positive, %d given.', $multiplier));
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}
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$str = clone $this;
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$str->string = str_repeat($str->string, $multiplier);
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return $str;
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}
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/**
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* @return static
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*/
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abstract public function replace(string $from, string $to): self;
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/**
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* @param string|callable $to
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*
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* @return static
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*/
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abstract public function replaceMatches(string $fromRegexp, $to): self;
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/**
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* @return static
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*/
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abstract public function reverse(): self;
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/**
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* @return static
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*/
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abstract public function slice(int $start = 0, int $length = null): self;
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/**
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* @return static
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*/
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abstract public function snake(): self;
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/**
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* @return static
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*/
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abstract public function splice(string $replacement, int $start = 0, int $length = null): self;
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/**
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* @return static[]
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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 (null === $flags) {
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throw new \TypeError('Split behavior when $flags is null must be implemented by child classes.');
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}
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if ($this->ignoreCase) {
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$delimiter .= 'i';
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}
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set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
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try {
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if (false === $chunks = preg_split($delimiter, $this->string, $limit, $flags)) {
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$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('Splitting failed with '.$k.'.');
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}
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}
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throw new RuntimeException('Splitting failed with unknown error code.');
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}
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} finally {
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restore_error_handler();
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}
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$str = clone $this;
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if (self::PREG_SPLIT_OFFSET_CAPTURE & $flags) {
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foreach ($chunks as &$chunk) {
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$str->string = $chunk[0];
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$chunk[0] = clone $str;
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}
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} else {
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foreach ($chunks as &$chunk) {
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$str->string = $chunk;
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$chunk = clone $str;
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}
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}
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return $chunks;
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}
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/**
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* @param string|string[] $prefix
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*/
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public function startsWith($prefix): bool
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{
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if (!\is_array($prefix) && !$prefix instanceof \Traversable) {
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throw new \TypeError(sprintf('Method "%s()" must be overridden by class "%s" to deal with non-iterable values.', __FUNCTION__, static::class));
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}
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foreach ($prefix as $prefix) {
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if ($this->startsWith((string) $prefix)) {
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return true;
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}
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}
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return false;
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}
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/**
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* @return static
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*/
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abstract public function title(bool $allWords = false): self;
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public function toByteString(string $toEncoding = null): ByteString
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{
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$b = new ByteString();
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$toEncoding = \in_array($toEncoding, ['utf8', 'utf-8', 'UTF8'], true) ? 'UTF-8' : $toEncoding;
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if (null === $toEncoding || $toEncoding === $fromEncoding = $this instanceof AbstractUnicodeString || preg_match('//u', $b->string) ? 'UTF-8' : 'Windows-1252') {
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$b->string = $this->string;
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return $b;
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}
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set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
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try {
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try {
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$b->string = mb_convert_encoding($this->string, $toEncoding, 'UTF-8');
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} catch (InvalidArgumentException $e) {
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if (!\function_exists('iconv')) {
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throw $e;
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}
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$b->string = iconv('UTF-8', $toEncoding, $this->string);
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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 $b;
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}
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public function toCodePointString(): CodePointString
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{
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return new CodePointString($this->string);
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}
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|
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public function toString(): string
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{
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return $this->string;
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}
|
|
|
|
public function toUnicodeString(): UnicodeString
|
|
{
|
|
return new UnicodeString($this->string);
|
|
}
|
|
|
|
/**
|
|
* @return static
|
|
*/
|
|
abstract public function trim(string $chars = " \t\n\r\0\x0B\x0C\u{A0}\u{FEFF}"): self;
|
|
|
|
/**
|
|
* @return static
|
|
*/
|
|
abstract public function trimEnd(string $chars = " \t\n\r\0\x0B\x0C\u{A0}\u{FEFF}"): self;
|
|
|
|
/**
|
|
* @param string|string[] $prefix
|
|
*
|
|
* @return static
|
|
*/
|
|
public function trimPrefix($prefix): self
|
|
{
|
|
if (\is_array($prefix) || $prefix instanceof \Traversable) {
|
|
foreach ($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;
|
|
}
|
|
|
|
/**
|
|
* @return static
|
|
*/
|
|
abstract public function trimStart(string $chars = " \t\n\r\0\x0B\x0C\u{A0}\u{FEFF}"): self;
|
|
|
|
/**
|
|
* @param string|string[] $suffix
|
|
*
|
|
* @return static
|
|
*/
|
|
public function trimSuffix($suffix): self
|
|
{
|
|
if (\is_array($suffix) || $suffix instanceof \Traversable) {
|
|
foreach ($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;
|
|
}
|
|
|
|
/**
|
|
* @return static
|
|
*/
|
|
public function truncate(int $length, string $ellipsis = '', bool $cut = true): self
|
|
{
|
|
$stringLength = $this->length();
|
|
|
|
if ($stringLength <= $length) {
|
|
return clone $this;
|
|
}
|
|
|
|
$ellipsisLength = '' !== $ellipsis ? (new static($ellipsis))->length() : 0;
|
|
|
|
if ($length < $ellipsisLength) {
|
|
$ellipsisLength = 0;
|
|
}
|
|
|
|
if (!$cut) {
|
|
if (null === $length = $this->indexOf([' ', "\r", "\n", "\t"], ($length ?: 1) - 1)) {
|
|
return clone $this;
|
|
}
|
|
|
|
$length += $ellipsisLength;
|
|
}
|
|
|
|
$str = $this->slice(0, $length - $ellipsisLength);
|
|
|
|
return $ellipsisLength ? $str->trimEnd()->append($ellipsis) : $str;
|
|
}
|
|
|
|
/**
|
|
* @return static
|
|
*/
|
|
abstract public function upper(): self;
|
|
|
|
/**
|
|
* Returns the printable length on a terminal.
|
|
*/
|
|
abstract public function width(bool $ignoreAnsiDecoration = true): int;
|
|
|
|
/**
|
|
* @return static
|
|
*/
|
|
public function wordwrap(int $width = 75, string $break = "\n", bool $cut = false): self
|
|
{
|
|
$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;
|
|
}
|
|
}
|