PHP code example of vinogradsoft / scanner

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

vinogradsoft / scanner example snippets

return [
    'tasks' => [
        'make breakfast' => [
            'sandwich' => [
                'cut a piece of bread' => [
                    'take the knife in your right hand',
                    'cut a piece of bread on a wooden board'
                ],
                'spread butter on bread',
                'put a piece of cheese on top',
            ],
            'coffee' => [
                'take a cup',
                'pour coffee into a cup',
            ],
        ]
    ],
    'other' => [
        'setting1' => 'value1',
        'setting2' => 'value2',
        'setting3' => 'value3'
    ]
];

declare(strict_types=1);

namespace Example;

use Vinograd\Scanner\AbstractTraversalStrategy;
use Vinograd\Scanner\Visitor;

class Handler implements Visitor
{
    public function scanStarted(AbstractTraversalStrategy $scanStrategy, mixed $detect): void
    {
    }

    public function scanCompleted(AbstractTraversalStrategy $scanStrategy, mixed $detect): void
    {
    }

    public function visitLeaf(AbstractTraversalStrategy $scanStrategy, mixed $parentNode, mixed $currentElement, mixed $data = null): void
    {
        $leaf = array_shift($currentElement);
        echo 'Execute: ', $leaf, PHP_EOL;
    }

    public function visitNode(AbstractTraversalStrategy $scanStrategy, mixed $parentNode, mixed $currentNode, mixed $data = null): void
    {
        $nodeName = array_key_first($currentNode);
        echo 'Start: ' . $nodeName, PHP_EOL;
    }
}

declare(strict_types=1);

namespace Example;

use Vinograd\Scanner\AbstractTraversalStrategy;
use Vinograd\Scanner\Scanner;
use Vinograd\Scanner\Visitor;

class ProxyHandler implements Visitor
{
    private Visitor $handler;
    private Scanner $scanner;

    public function __construct(Visitor $handler, Scanner $scanner)
    {
        $this->handler = $handler;
        $this->scanner = $scanner;
    }

    public function scanStarted(AbstractTraversalStrategy $scanStrategy, mixed $detect): void
    {
        $this->handler->scanStarted($scanStrategy, $detect);
    }

    public function scanCompleted(AbstractTraversalStrategy $scanStrategy, mixed $detect): void
    {
        $this->handler->scanCompleted($scanStrategy, $detect);
    }

    public function visitLeaf(AbstractTraversalStrategy $scanStrategy, mixed $parentNode, mixed $currentElement, mixed $data = null): void
    {
        $this->handler->visitLeaf($scanStrategy, $parentNode, $currentElement);
    }

    public function visitNode(AbstractTraversalStrategy $scanStrategy, mixed $parentNode, mixed $currentNode, mixed $data = null): void
    {
        $name = array_key_first($currentNode);
        if ($name !== 'tasks') {
            $this->handler->visitNode($scanStrategy, $parentNode, $currentNode);
        }
        $this->scanner->traverse($currentNode[$name]);
    }
}

declare(strict_types=1);

namespace Example;

class FilterForNodeOther implements \Vinograd\Scanner\Filter
{
    public function filter(mixed $element): bool
    {
        $name = array_key_first($element);
        return $name !== 'other';
    }
}

declare(strict_types=1);

namespace Example;

use Vinograd\Scanner\ArrayDriver;
use Vinograd\Scanner\Scanner;
use Vinograd\Scanner\SingleStrategy;

class Application
{
    public function run(array $config): void
    {
        $scanner = new Scanner();
        $scanner->setDriver(new ArrayDriver());
        $scanner->setVisitor(new ProxyHandler(new Handler(), $scanner));
        $scanner->setStrategy(new SingleStrategy());
        $scanner->addNodeFilter(new FilterForNodeOther());
        $scanner->traverse($config);
    }
}

$scanner = new Scanner();

$scanner->setDriver(new ArrayDriver());

$scanner->setVisitor(new ProxyHandler(new Handler(), $scanner));
$scanner->setStrategy(new SingleStrategy());

$scanner->addNodeFilter(new FilterForNodeOther());
$scanner->traverse($config);

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