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File / Folder	Size	Action
.	-
Field	--	ren
Test	--	ren
AbstractUriElement.php	3.293KB	edt ren
CHANGELOG.md	3.933KB	edt ren
Crawler.php	38.187KB	edt ren
Form.php	15.051KB	edt ren
FormFieldRegistry.php	4.868KB	edt ren
Image.php	0.894KB	edt ren
LICENSE	1.043KB	edt ren
Link.php	0.87KB	edt ren
README.md	0.486KB	edt ren
UriResolver.php	3.505KB	edt ren
composer.json	0.871KB	edt ren

<?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\DomCrawler;

use Symfony\Component\DomCrawler\Field\FormField;

/**
 * This is an internal class that must not be used directly.
 *
 * @internal
 */
class FormFieldRegistry
{
    private array $fields = [];
    private string $base = '';

/**
     * Adds a field to the registry.
     */
    public function add(FormField $field): void
    {
        $segments = $this->getSegments($field->getName());

$target = &$this->fields;
        while ($segments) {
            if (!\is_array($target)) {
                $target = [];
            }
            $path = array_shift($segments);
            if ('' === $path) {
                $target = &$target[];
            } else {
                $target = &$target[$path];
            }
        }
        $target = $field;
    }

/**
     * Removes a field based on the fully qualified name and its children from the registry.
     */
    public function remove(string $name): void
    {
        $segments = $this->getSegments($name);
        $target = &$this->fields;
        while (\count($segments) > 1) {
            $path = array_shift($segments);
            if (!\is_array($target) || !\array_key_exists($path, $target)) {
                return;
            }
            $target = &$target[$path];
        }
        unset($target[array_shift($segments)]);
    }

/**
     * Returns the value of the field based on the fully qualified name and its children.
     *
     * @return FormField|FormField[]|FormField[][]
     *
     * @throws \InvalidArgumentException if the field does not exist
     */
    public function &get(string $name): FormField|array
    {
        $segments = $this->getSegments($name);
        $target = &$this->fields;
        while ($segments) {
            $path = array_shift($segments);
            if (!\is_array($target) || !\array_key_exists($path, $target)) {
                throw new \InvalidArgumentException(sprintf('Unreachable field "%s".', $path));
            }
            $target = &$target[$path];
        }

return $target;
    }

/**
     * Tests whether the form has the given field based on the fully qualified name.
     */
    public function has(string $name): bool
    {
        try {
            $this->get($name);

return true;
        } catch (\InvalidArgumentException) {
            return false;
        }
    }

/**
     * Set the value of a field based on the fully qualified name and its children.
     *
     * @throws \InvalidArgumentException if the field does not exist
     */
    public function set(string $name, mixed $value): void
    {
        $target = &$this->get($name);
        if ((!\is_array($value) && $target instanceof Field\FormField) || $target instanceof Field\ChoiceFormField) {
            $target->setValue($value);
        } elseif (\is_array($value)) {
            $registry = new static();
            $registry->base = $name;
            $registry->fields = $value;
            foreach ($registry->all() as $k => $v) {
                $this->set($k, $v);
            }
        } else {
            throw new \InvalidArgumentException(sprintf('Cannot set value on a compound field "%s".', $name));
        }
    }

/**
     * Returns the list of field with their value.
     *
     * @return FormField[] The list of fields as [string] Fully qualified name => (mixed) value)
     */
    public function all(): array
    {
        return $this->walk($this->fields, $this->base);
    }

/**
     * Transforms a PHP array in a list of fully qualified name / value.
     */
    private function walk(array $array, ?string $base = '', array &$output = []): array
    {
        foreach ($array as $k => $v) {
            $path = empty($base) ? $k : sprintf('%s[%s]', $base, $k);
            if (\is_array($v)) {
                $this->walk($v, $path, $output);
            } else {
                $output[$path] = $v;
            }
        }

return $output;
    }

/**
     * Splits a field name into segments as a web browser would do.
     *
     *     getSegments('base[foo][3][]') = ['base', 'foo, '3', ''];
     *
     * @return string[]
     */
    private function getSegments(string $name): array
    {
        if (preg_match('/^(?P<base>[^[]+)(?P<extra>(\[.*)|$)/', $name, $m)) {
            $segments = [$m['base']];
            while (!empty($m['extra'])) {
                $extra = $m['extra'];
                if (preg_match('/^\[(?P<segment>.*?)\](?P<extra>.*)$/', $extra, $m)) {
                    $segments[] = $m['segment'];
                } else {
                    $segments[] = $extra;
                }
            }

return $segments;
        }

return [$name];
    }
}