xrg.es/backend/src/Service/PregMatch.php

49 lines
1.2 KiB
PHP

<?php
declare(strict_types=1);
namespace App\Service;
use App\Entity\PregResponse;
use App\Resource\Flags;
/**
* Handler form preg_match() function.
* @see preg_match()
*/
class PregMatch extends PregFunction
{
protected array $availableFlags = [Flags::PREG_OFFSET_CAPTURE, Flags::PREG_UNMATCHED_AS_NULL];
public function exec(): PregResponse
{
$ret = preg_match($this->dto->pattern, $this->dto->subject, $matches, $this->flags, $this->dto->offset ?? 0);
return new PregResponse(
$matches,
$this->syntax(),
...$this->result($ret)
);
}
protected function syntax(): string
{
$method = $this->dto->method->value;
$args = [$method .'("'. $this->dto->pattern.'"'];
$args[] = $this->cropString($this->dto->subject);
$args[] = '$matches';
if (\count($this->flagsStr)) {
$args[] = implode(' | ', $this->flagsStr);
}
if (!\is_null($this->dto->offset)) {
$args[] = (!\count($this->flagsStr)? 'null, ': ''). $this->dto->offset;
}
$code = implode(", ", $args). ");";
return $this->syntaxCleanup($code);
}
}