<?php

/**
 * DO NOT EDIT!
 * This file was automatically generated via bin/generate-validator-spec.php.
 */
namespace Google\Web_Stories_Dependencies\AmpProject\Validator\Spec\Tag;

use Google\Web_Stories_Dependencies\AmpProject\Format;
use Google\Web_Stories_Dependencies\AmpProject\Html\Attribute;
use Google\Web_Stories_Dependencies\AmpProject\Html\Tag as Element;
use Google\Web_Stories_Dependencies\AmpProject\Validator\Spec\Identifiable;
use Google\Web_Stories_Dependencies\AmpProject\Validator\Spec\SpecRule;
use Google\Web_Stories_Dependencies\AmpProject\Validator\Spec\Tag;
/**
 * Tag class HtmlDoctype.
 *
 * @package ampproject/amp-toolbox.
 *
 * @property-read string $tagName
 * @property-read string $specName
 * @property-read bool $mandatory
 * @property-read bool $unique
 * @property-read string $mandatoryParent
 * @property-read array $attrs
 * @property-read string $specUrl
 * @property-read array<string> $htmlFormat
 * @property-read bool $explicitAttrsOnly
 * @property-read string $descriptiveName
 */
final class HtmlDoctype extends Tag implements Identifiable
{
    /**
     * ID of the tag.
     *
     * @var string
     */
    const ID = 'html doctype';
    /**
     * Array of spec rules.
     *
     * @var array
     */
    const SPEC = [SpecRule::TAG_NAME => Element::_DOCTYPE, SpecRule::SPEC_NAME => 'html doctype', SpecRule::MANDATORY => \true, SpecRule::UNIQUE => \true, SpecRule::MANDATORY_PARENT => '$ROOT', SpecRule::ATTRS => [Attribute::HTML => [SpecRule::MANDATORY => \true, SpecRule::VALUE => ['']], Attribute::LANG => [SpecRule::DEPRECATION => 'html', SpecRule::DEPRECATION_URL => 'https://github.com/ampproject/amphtml/issues/25926']], SpecRule::SPEC_URL => 'https://amp.dev/documentation/guides-and-tutorials/learn/spec/amphtml/#required-markup', SpecRule::HTML_FORMAT => [Format::AMP, Format::AMP4EMAIL], SpecRule::EXPLICIT_ATTRS_ONLY => \true, SpecRule::DESCRIPTIVE_NAME => 'html !doctype'];
}
