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vendor/symfony/form/Util/FormUtil.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 Symfony\Component\Form\Util;
+
+/**
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class FormUtil
+{
+    /**
+     * This class should not be instantiated.
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Returns whether the given data is empty.
+     *
+     * This logic is reused multiple times throughout the processing of
+     * a form and needs to be consistent. PHP keyword `empty` cannot
+     * be used as it also considers 0 and "0" to be empty.
+     */
+    public static function isEmpty(mixed $data): bool
+    {
+        // Should not do a check for [] === $data!!!
+        // This method is used in occurrences where arrays are
+        // not considered to be empty, ever.
+        return null === $data || '' === $data;
+    }
+
+    /**
+     * Recursively replaces or appends elements of the first array with elements
+     * of second array. If the key is an integer, the values will be appended to
+     * the new array; otherwise, the value from the second array will replace
+     * the one from the first array.
+     */
+    public static function mergeParamsAndFiles(array $params, array $files): array
+    {
+        $isFilesList = array_is_list($files);
+
+        foreach ($params as $key => $value) {
+            if (\is_array($value) && \is_array($files[$key] ?? null)) {
+                $params[$key] = self::mergeParamsAndFiles($value, $files[$key]);
+                unset($files[$key]);
+            }
+        }
+
+        if (!$isFilesList) {
+            return array_replace($params, $files);
+        }
+
+        foreach ($files as $value) {
+            $params[] = $value;
+        }
+
+        return $params;
+    }
+}

vendor/symfony/form/Util/InheritDataAwareIterator.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 Symfony\Component\Form\Util;
+
+/**
+ * Iterator that traverses an array of forms.
+ *
+ * Contrary to \ArrayIterator, this iterator recognizes changes in the original
+ * array during iteration.
+ *
+ * You can wrap the iterator into a {@link \RecursiveIteratorIterator} in order to
+ * enter any child form that inherits its parent's data and iterate the children
+ * of that form as well.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class InheritDataAwareIterator extends \IteratorIterator implements \RecursiveIterator
+{
+    public function getChildren(): static
+    {
+        return new static($this->current());
+    }
+
+    public function hasChildren(): bool
+    {
+        return (bool) $this->current()->getConfig()->getInheritData();
+    }
+}

vendor/symfony/form/Util/OptionsResolverWrapper.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 Symfony\Component\Form\Util;
+
+use Symfony\Component\OptionsResolver\Exception\AccessException;
+use Symfony\Component\OptionsResolver\Exception\UndefinedOptionsException;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+/**
+ * @author Yonel Ceruto <yonelceruto@gmail.com>
+ *
+ * @internal
+ */
+class OptionsResolverWrapper extends OptionsResolver
+{
+    private array $undefined = [];
+
+    /**
+     * @return $this
+     */
+    public function setNormalizer(string $option, \Closure $normalizer): static
+    {
+        try {
+            parent::setNormalizer($option, $normalizer);
+        } catch (UndefinedOptionsException) {
+            $this->undefined[$option] = true;
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setAllowedValues(string $option, mixed $allowedValues): static
+    {
+        try {
+            parent::setAllowedValues($option, $allowedValues);
+        } catch (UndefinedOptionsException) {
+            $this->undefined[$option] = true;
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function addAllowedValues(string $option, mixed $allowedValues): static
+    {
+        try {
+            parent::addAllowedValues($option, $allowedValues);
+        } catch (UndefinedOptionsException) {
+            $this->undefined[$option] = true;
+        }
+
+        return $this;
+    }
+
+    /**
+     * @param string|array $allowedTypes
+     *
+     * @return $this
+     */
+    public function setAllowedTypes(string $option, $allowedTypes): static
+    {
+        try {
+            parent::setAllowedTypes($option, $allowedTypes);
+        } catch (UndefinedOptionsException) {
+            $this->undefined[$option] = true;
+        }
+
+        return $this;
+    }
+
+    /**
+     * @param string|array $allowedTypes
+     *
+     * @return $this
+     */
+    public function addAllowedTypes(string $option, $allowedTypes): static
+    {
+        try {
+            parent::addAllowedTypes($option, $allowedTypes);
+        } catch (UndefinedOptionsException) {
+            $this->undefined[$option] = true;
+        }
+
+        return $this;
+    }
+
+    public function resolve(array $options = []): array
+    {
+        throw new AccessException('Resolve options is not supported.');
+    }
+
+    public function getUndefinedOptions(): array
+    {
+        return array_keys($this->undefined);
+    }
+}

vendor/symfony/form/Util/OrderedHashMap.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 Symfony\Component\Form\Util;
+
+/**
+ * A hash map which keeps track of deletions and additions.
+ *
+ * Like in associative arrays, elements can be mapped to integer or string keys.
+ * Unlike associative arrays, the map keeps track of the order in which keys
+ * were added and removed. This order is reflected during iteration.
+ *
+ * The map supports concurrent modification during iteration. That means that
+ * you can insert and remove elements from within a foreach loop and the
+ * iterator will reflect those changes accordingly.
+ *
+ * While elements that are added during the loop are recognized by the iterator,
+ * changed elements are not. Otherwise the loop could be infinite if each loop
+ * changes the current element:
+ *
+ *     $map = new OrderedHashMap();
+ *     $map[1] = 1;
+ *     $map[2] = 2;
+ *     $map[3] = 3;
+ *
+ *     foreach ($map as $index => $value) {
+ *         echo "$index: $value\n"
+ *         if (1 === $index) {
+ *             $map[1] = 4;
+ *             $map[] = 5;
+ *         }
+ *     }
+ *
+ *     print_r(iterator_to_array($map));
+ *
+ *     // => 1: 1
+ *     //    2: 2
+ *     //    3: 3
+ *     //    4: 5
+ *     //    Array
+ *     //    (
+ *     //        [1] => 4
+ *     //        [2] => 2
+ *     //        [3] => 3
+ *     //        [4] => 5
+ *     //    )
+ *
+ * The map also supports multiple parallel iterators. That means that you can
+ * nest foreach loops without affecting each other's iteration:
+ *
+ *     foreach ($map as $index => $value) {
+ *         foreach ($map as $index2 => $value2) {
+ *             // ...
+ *         }
+ *     }
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @template TValue
+ *
+ * @implements \ArrayAccess<string, TValue>
+ * @implements \IteratorAggregate<string, TValue>
+ */
+class OrderedHashMap implements \ArrayAccess, \IteratorAggregate, \Countable
+{
+    /**
+     * The elements of the map, indexed by their keys.
+     *
+     * @var TValue[]
+     */
+    private array $elements = [];
+
+    /**
+     * The keys of the map in the order in which they were inserted or changed.
+     *
+     * @var list<string>
+     */
+    private array $orderedKeys = [];
+
+    /**
+     * References to the cursors of all open iterators.
+     *
+     * @var array<int, int>
+     */
+    private array $managedCursors = [];
+
+    /**
+     * Creates a new map.
+     *
+     * @param TValue[] $elements The elements to insert initially
+     */
+    public function __construct(array $elements = [])
+    {
+        $this->elements = $elements;
+        // the explicit string type-cast is necessary as digit-only keys would be returned as integers otherwise
+        $this->orderedKeys = array_map(strval(...), array_keys($elements));
+    }
+
+    public function offsetExists(mixed $key): bool
+    {
+        return isset($this->elements[$key]);
+    }
+
+    public function offsetGet(mixed $key): mixed
+    {
+        if (!isset($this->elements[$key])) {
+            throw new \OutOfBoundsException(\sprintf('The offset "%s" does not exist.', $key));
+        }
+
+        return $this->elements[$key];
+    }
+
+    public function offsetSet(mixed $key, mixed $value): void
+    {
+        if (null === $key || !isset($this->elements[$key])) {
+            if (null === $key) {
+                $key = [] === $this->orderedKeys
+                    // If the array is empty, use 0 as key
+                    ? 0
+                    // Imitate PHP behavior of generating a key that equals
+                    // the highest existing integer key + 1
+                    : 1 + (int) max($this->orderedKeys);
+            }
+
+            $this->orderedKeys[] = (string) $key;
+        }
+
+        $this->elements[$key] = $value;
+    }
+
+    public function offsetUnset(mixed $key): void
+    {
+        if (false !== ($position = array_search((string) $key, $this->orderedKeys))) {
+            array_splice($this->orderedKeys, $position, 1);
+            unset($this->elements[$key]);
+
+            foreach ($this->managedCursors as $i => $cursor) {
+                if ($cursor >= $position) {
+                    --$this->managedCursors[$i];
+                }
+            }
+        }
+    }
+
+    public function getIterator(): \Traversable
+    {
+        return new OrderedHashMapIterator($this->elements, $this->orderedKeys, $this->managedCursors);
+    }
+
+    public function count(): int
+    {
+        return \count($this->elements);
+    }
+}

vendor/symfony/form/Util/OrderedHashMapIterator.php

@@ -0,0 +1,128 @@
+<?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\Form\Util;
+
+/**
+ * Iterator for {@link OrderedHashMap} objects.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @internal
+ *
+ * @template-covariant TValue
+ *
+ * @implements \Iterator<string, TValue>
+ */
+class OrderedHashMapIterator implements \Iterator
+{
+    /** @var TValue[] */
+    private array $elements;
+    /** @var list<string> */
+    private array $orderedKeys;
+    private int $cursor = 0;
+    private int $cursorId;
+    /** @var array<int, int> */
+    private array $managedCursors;
+    private ?string $key = null;
+    /** @var TValue|null */
+    private mixed $current = null;
+
+    /**
+     * @param TValue[]        $elements       The elements of the map, indexed by their
+     *                                        keys
+     * @param list<string>    $orderedKeys    The keys of the map in the order in which
+     *                                        they should be iterated
+     * @param array<int, int> $managedCursors An array from which to reference the
+     *                                        iterator's cursor as long as it is alive.
+     *                                        This array is managed by the corresponding
+     *                                        {@link OrderedHashMap} instance to support
+     *                                        recognizing the deletion of elements.
+     */
+    public function __construct(array &$elements, array &$orderedKeys, array &$managedCursors)
+    {
+        $this->elements = &$elements;
+        $this->orderedKeys = &$orderedKeys;
+        $this->managedCursors = &$managedCursors;
+        $this->cursorId = \count($managedCursors);
+
+        $this->managedCursors[$this->cursorId] = &$this->cursor;
+    }
+
+    public function __sleep(): array
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    /**
+     * @return void
+     */
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    /**
+     * Removes the iterator's cursors from the managed cursors of the
+     * corresponding {@link OrderedHashMap} instance.
+     */
+    public function __destruct()
+    {
+        // Use array_splice() instead of unset() to prevent holes in the
+        // array indices, which would break the initialization of $cursorId
+        array_splice($this->managedCursors, $this->cursorId, 1);
+    }
+
+    public function current(): mixed
+    {
+        return $this->current;
+    }
+
+    public function next(): void
+    {
+        ++$this->cursor;
+
+        if (isset($this->orderedKeys[$this->cursor])) {
+            $this->key = $this->orderedKeys[$this->cursor];
+            $this->current = $this->elements[$this->key];
+        } else {
+            $this->key = null;
+            $this->current = null;
+        }
+    }
+
+    public function key(): mixed
+    {
+        if (null === $this->key) {
+            return null;
+        }
+
+        return $this->key;
+    }
+
+    public function valid(): bool
+    {
+        return null !== $this->key;
+    }
+
+    public function rewind(): void
+    {
+        $this->cursor = 0;
+
+        if (isset($this->orderedKeys[0])) {
+            $this->key = $this->orderedKeys[0];
+            $this->current = $this->elements[$this->key];
+        } else {
+            $this->key = null;
+            $this->current = null;
+        }
+    }
+}

vendor/symfony/form/Util/ServerParams.php

@@ -0,0 +1,93 @@
+<?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\Form\Util;
+
+use Symfony\Component\HttpFoundation\RequestStack;
+
+/**
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class ServerParams
+{
+    private ?RequestStack $requestStack;
+
+    public function __construct(?RequestStack $requestStack = null)
+    {
+        $this->requestStack = $requestStack;
+    }
+
+    /**
+     * Returns true if the POST max size has been exceeded in the request.
+     */
+    public function hasPostMaxSizeBeenExceeded(): bool
+    {
+        $contentLength = $this->getContentLength();
+        $maxContentLength = $this->getPostMaxSize();
+
+        return $maxContentLength && $contentLength > $maxContentLength;
+    }
+
+    /**
+     * Returns maximum post size in bytes.
+     */
+    public function getPostMaxSize(): int|float|null
+    {
+        $iniMax = strtolower($this->getNormalizedIniPostMaxSize());
+
+        if ('' === $iniMax) {
+            return null;
+        }
+
+        $max = ltrim($iniMax, '+');
+        if (str_starts_with($max, '0x')) {
+            $max = \intval($max, 16);
+        } elseif (str_starts_with($max, '0')) {
+            $max = \intval($max, 8);
+        } else {
+            $max = (int) $max;
+        }
+
+        switch (substr($iniMax, -1)) {
+            case 't': $max *= 1024;
+                // no break
+            case 'g': $max *= 1024;
+                // no break
+            case 'm': $max *= 1024;
+                // no break
+            case 'k': $max *= 1024;
+        }
+
+        return $max;
+    }
+
+    /**
+     * Returns the normalized "post_max_size" ini setting.
+     */
+    public function getNormalizedIniPostMaxSize(): string
+    {
+        return strtoupper(trim(\ini_get('post_max_size')));
+    }
+
+    /**
+     * Returns the content length of the request.
+     */
+    public function getContentLength(): mixed
+    {
+        if (null !== $this->requestStack && null !== $request = $this->requestStack->getCurrentRequest()) {
+            return $request->server->get('CONTENT_LENGTH');
+        }
+
+        return isset($_SERVER['CONTENT_LENGTH'])
+            ? (int) $_SERVER['CONTENT_LENGTH']
+            : null;
+    }
+}

vendor/symfony/form/Util/StringUtil.php

@@ -0,0 +1,53 @@
+<?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\Form\Util;
+
+/**
+ * @author Issei Murasawa <issei.m7@gmail.com>
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class StringUtil
+{
+    /**
+     * This class should not be instantiated.
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Returns the trimmed data.
+     */
+    public static function trim(string $string): string
+    {
+        if (null !== $result = @preg_replace('/^[\pZ\p{Cc}\p{Cf}]+|[\pZ\p{Cc}\p{Cf}]+$/u', '', $string)) {
+            return $result;
+        }
+
+        return trim($string);
+    }
+
+    /**
+     * Converts a fully-qualified class name to a block prefix.
+     *
+     * @param string $fqcn The fully-qualified class name
+     */
+    public static function fqcnToBlockPrefix(string $fqcn): ?string
+    {
+        // Non-greedy ("+?") to match "type" suffix, if present
+        if (preg_match('~([^\\\\]+?)(type)?$~i', $fqcn, $matches)) {
+            return strtolower(preg_replace(['/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'], ['\\1_\\2', '\\1_\\2'], $matches[1]));
+        }
+
+        return null;
+    }
+}