<?php
/**
 * Generated by amp_wp_build.py - do not edit.
 *
 * This is a list of HTML tags and attributes that are allowed by the
 * AMP specification. Note that tag names have been converted to lowercase.
 *
 * Note: This file only contains tags that are relevant to the `body` of
 * an AMP page. To include additional elements modify the variable
 * `mandatory_parent_blacklist` in the amp_wp_build.py script.
 */
class AMP_Allowed_Tags_Generated {

	private static $spec_file_revision = 325;
	private static $minimum_validator_revision_required = 189;

	private static $allowed_tags = array(
		'a' => array(
			array(
				'attr_spec_list' => array(
					'border' => array(),
					'download' => array(),
					'href' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'bbmi',
							'fb-messenger',
							'ftp',
							'http',
							'https',
							'intent',
							'line',
							'mailto',
							'skype',
							'sms',
							'snapchat',
							'tel',
							'tg',
							'threema',
							'twitter',
							'viber',
							'whatsapp',
						),
					),
					'hreflang' => array(),
					'media' => array(),
					'name' => array(),
					'rel' => array(
						'blacklisted_value_regex' => '(^|\\s)(components|dns-prefetch|import|manifest|preconnect|prefetch|preload|prerender|serviceworker|stylesheet|subresource|)(\\s|$)',
					),
					'role' => array(),
					'tabindex' => array(),
					'target' => array(
						'value_regex' => '(_blank|_self|_top)',
					),
					'type' => array(
						'value_casei' => 'text/html',
					),
				),
				'tag_spec' => array(
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#links',
				),

			),
		),
		'abbr' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'acronym' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'address' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'amp-accordion' => array(
			array(
				'attr_spec_list' => array(
					'disable-session-states' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-accordion extension .js script',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-accordion.html',
				),

			),
		),
		'amp-ad' => array(
			array(
				'attr_spec_list' => array(
					'alt' => array(),
					'json' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'type' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'disallowed_ancestor' => array(
							'amp-app-banner',
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-ad.html',
				),

			),
		),
		'amp-analytics' => array(
			array(
				'attr_spec_list' => array(
					'config' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'type' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-analytics extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-analytics.html',
				),

			),
		),
		'amp-anim' => array(
			array(
				'attr_spec_list' => array(
					'alt' => array(),
					'attribution' => array(),
					'autoplay' => array(
						'value' => '',
					),
					'controls' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'alternative_names' => array(
							'srcset',
						),
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
							'data',
							'http',
							'https',
						),
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-anim extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-anim.html',
				),

			),
		),
		'amp-apester-media' => array(
			array(
				'attr_spec_list' => array(
					'data-apester-channel-token' => array(
						'value_regex' => '[0-9a-za-z]+',
					),
					'data-apester-media-id' => array(
						'value_regex' => '[0-9a-za-z]+',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-apester-media extension .js script',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-apester-media.html',
				),

			),
		),
		'amp-app-banner' => array(
			array(
				'attr_spec_list' => array(
					'id' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-app-banner button[open-button]',
							'amp-app-banner extension .js script',
					),
					'html_format' => array(
							'amp',
					),
					'mandatory_parent' => 'body',
					'spec_name' => 'amp-app-banner',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-add-banner.html',
					'unique' => true,
				),

			),
		),
		'amp-audio' => array(
			array(
				'attr_spec_list' => array(
					'autoplay' => array(
						'value_regex' => '^$|desktop|tablet|mobile|autoplay',
					),
					'controls' => array(),
					'loop' => array(
						'value' => '',
					),
					'media' => array(),
					'muted' => array(
						'value' => '',
					),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-audio extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-audio.html',
				),

			),
			array(
				'attr_spec_list' => array(
					'controls' => array(),
					'loop' => array(
						'value' => '',
					),
					'media' => array(),
					'muted' => array(
						'value' => '',
					),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-audio extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp4ads',
					),
					'spec_name' => 'amp-audio (a4a)',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-audio.html',
				),

			),
		),
		'amp-auto-ads' => array(
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'type' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'amp-brid-player' => array(
			array(
				'attr_spec_list' => array(
					'data-partner' => array(
						'mandatory' => true,
						'value_regex' => '[0-9]+',
					),
					'data-player' => array(
						'mandatory' => true,
						'value_regex' => '[0-9]+',
					),
					'data-playlist' => array(
						'value_regex' => '[0-9]+',
					),
					'data-video' => array(
						'value_regex' => '[0-9]+',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-brid-player extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-brid-player.html',
				),

			),
		),
		'amp-brightcove' => array(
			array(
				'attr_spec_list' => array(
					'data-account' => array(
						'mandatory' => true,
					),
					'data-embed' => array(),
					'data-player' => array(),
					'data-playlist-id' => array(),
					'data-video-id' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-brightcove extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-brightcove.html',
				),

			),
		),
		'amp-carousel' => array(
			array(
				'attr_spec_list' => array(
					'arrows' => array(
						'value' => '',
					),
					'autoplay' => array(
						'value' => '',
					),
					'controls' => array(),
					'delay' => array(
						'value_regex' => '[0-9]+',
					),
					'dots' => array(
						'value' => '',
					),
					'loop' => array(
						'value' => '',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'type' => array(
						'value_regex' => 'slides|carousel',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-carousel extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-carousel.html',
				),

			),
		),
		'amp-dailymotion' => array(
			array(
				'attr_spec_list' => array(
					'data-endscreen-enable' => array(
						'value_regex' => 'true|false',
					),
					'data-info' => array(
						'value_regex' => 'true|false',
					),
					'data-mute' => array(
						'value_regex' => 'true|false',
					),
					'data-sharing-enable' => array(
						'value_regex' => 'true|false',
					),
					'data-start' => array(
						'value_regex' => '[0-9]+',
					),
					'data-ui-highlight' => array(
						'value_regex_casei' => '([0-9a-f]{3}){1,2}',
					),
					'data-ui-logo' => array(
						'value_regex' => 'true|false',
					),
					'data-videoid' => array(
						'mandatory' => true,
						'value_regex_casei' => '[a-z0-9]+',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-dailymotion extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-dailymotion.html',
				),

			),
		),
		'amp-embed' => array(
			array(
				'attr_spec_list' => array(
					'alt' => array(),
					'json' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'type' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-embed.html',
				),

			),
		),
		'amp-experiment' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-experiment extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-experiment.html',
					'unique' => true,
				),

			),
		),
		'amp-facebook' => array(
			array(
				'attr_spec_list' => array(
					'data-href' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-facebook extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-facebook.html',
				),

			),
		),
		'amp-fit-text' => array(
			array(
				'attr_spec_list' => array(
					'max-font-size' => array(),
					'media' => array(),
					'min-font-size' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-fit-text extension .js script',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-fit-text.html',
				),

			),
		),
		'amp-font' => array(
			array(
				'attr_spec_list' => array(
					'font-family' => array(
						'mandatory' => true,
					),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'on-error-add-class' => array(),
					'on-error-remove-class' => array(),
					'on-load-add-class' => array(),
					'on-load-remove-class' => array(),
					'timeout' => array(
						'value_regex' => '[0-9]+',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-font extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-font.html',
				),

			),
		),
		'amp-fx-flying-carpet' => array(
			array(
				'attr_spec_list' => array(
					'height' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-fx-flying-carpet extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-fx-flying-carpet.html',
				),

			),
		),
		'amp-gfycat' => array(
			array(
				'attr_spec_list' => array(
					'data-gfyid' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noautoplay' => array(
						'value' => '',
					),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-gfycat extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-gfycat.html',
				),

			),
		),
		'amp-hulu' => array(
			array(
				'attr_spec_list' => array(
					'data-eid' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-hulu extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
				),

			),
		),
		'amp-iframe' => array(
			array(
				'attr_spec_list' => array(
					'allowfullscreen' => array(
						'value' => '',
					),
					'allowtransparency' => array(
						'value' => '',
					),
					'frameborder' => array(
						'value_regex' => '0|1',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'referrerpolicy' => array(),
					'resizable' => array(
						'value' => '',
					),
					'sandbox' => array(),
					'scrolling' => array(
						'value_regex' => 'auto|yes|no',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'data',
							'https',
						),
					),
					'srcdoc' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-iframe extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-iframe.html',
				),

			),
		),
		'amp-image-lightbox' => array(
			array(
				'attr_spec_list' => array(
					'controls' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-image-lightbox extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-image-lightbox.html',
				),

			),
		),
		'amp-img' => array(
			array(
				'attr_spec_list' => array(
					'alt' => array(),
					'attribution' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'placeholder' => array(),
					'src' => array(
						'alternative_names' => array(
							'srcset',
						),
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
							'data',
							'http',
							'https',
						),
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-img.html',
				),

			),
		),
		'amp-instagram' => array(
			array(
				'attr_spec_list' => array(
					'alt' => array(),
					'data-shortcode' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-instagram extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-instagram.html',
				),

			),
		),
		'amp-install-serviceworker' => array(
			array(
				'attr_spec_list' => array(
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-install-serviceworker extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-install-serviceworker.html',
				),

			),
		),
		'amp-jwplayer' => array(
			array(
				'attr_spec_list' => array(
					'data-media-id' => array(
						'value_regex_casei' => '[0-9a-z]{8}',
					),
					'data-player-id' => array(
						'mandatory' => true,
						'value_regex_casei' => '[0-9a-z]{8}',
					),
					'data-playlist-id' => array(
						'value_regex_casei' => '[0-9a-z]{8}',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-jwplayer extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-jwplayer.html',
				),

			),
		),
		'amp-kaltura-player' => array(
			array(
				'attr_spec_list' => array(
					'data-partner' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-kaltura-player extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-kaltura-player.html',
				),

			),
		),
		'amp-lightbox' => array(
			array(
				'attr_spec_list' => array(
					'controls' => array(),
					'from' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'scrollable' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-lightbox extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-lightbox.html',
				),

			),
		),
		'amp-list' => array(
			array(
				'attr_spec_list' => array(
					'credentials' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'template' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-list extension .js script',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-list.html',
				),

			),
		),
		'amp-live-list' => array(
			array(
				'attr_spec_list' => array(
					'data-max-items-per-page' => array(
						'mandatory' => true,
						'value_regex' => '\\d+',
					),
					'data-poll-interval' => array(
						'value_regex' => '\\d{5,}',
					),
					'disabled' => array(
						'value' => '',
					),
					'id' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-live-list extension .js script',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-live-list.html',
				),

			),
		),
		'amp-o2-player' => array(
			array(
				'attr_spec_list' => array(
					'data-bcid' => array(
						'mandatory' => true,
					),
					'data-bid' => array(),
					'data-pid' => array(
						'mandatory' => true,
					),
					'data-vid' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-o2-player extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-o2-player.html',
				),

			),
		),
		'amp-ooyala-player' => array(
			array(
				'attr_spec_list' => array(
					'data-config' => array(),
					'data-embedcode' => array(
						'mandatory' => true,
					),
					'data-pcode' => array(
						'mandatory' => true,
					),
					'data-playerid' => array(
						'mandatory' => true,
					),
					'data-playerversion' => array(),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-ooyala-player extension .js script',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-ooyala-player.html',
				),

			),
		),
		'amp-pinterest' => array(
			array(
				'attr_spec_list' => array(
					'data-do' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-pinterest extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-pinterest.html',
				),

			),
		),
		'amp-pixel' => array(
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
				),
				'tag_spec' => array(
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-pixel.html',
				),

			),
		),
		'amp-playbuzz' => array(
			array(
				'attr_spec_list' => array(
					'data-comments' => array(
						'value_regex_casei' => '(false|true)',
					),
					'data-item-info' => array(
						'value_regex_casei' => '(false|true)',
					),
					'data-share-buttons' => array(
						'value_regex_casei' => '(false|true)',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'src' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-playbuzz extension .js script',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-playbuzz',
				),

			),
		),
		'amp-reach-player' => array(
			array(
				'attr_spec_list' => array(
					'data-embed-id' => array(
						'mandatory' => true,
						'value_regex' => '[0-9a-z-]+',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-reach-player extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-reach-player.html',
				),

			),
		),
		'amp-reddit' => array(
			array(
				'attr_spec_list' => array(
					'data-embedlive' => array(
						'value_regex_casei' => '(false|true)',
					),
					'data-embedparent' => array(
						'value_regex_casei' => '(false|true)',
					),
					'data-embedtype' => array(
						'mandatory' => true,
						'value_regex_casei' => '(comment|post)',
					),
					'data-src' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-reddit extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-reddit',
				),

			),
		),
		'amp-selector' => array(
			array(
				'attr_spec_list' => array(
					'disabled' => array(
						'value' => '',
					),
					'form' => array(),
					'media' => array(),
					'multiple' => array(
						'value' => '',
					),
					'name' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-selector extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-selector',
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-selector.html',
				),

			),
		),
		'amp-sidebar' => array(
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'side' => array(
						'value_regex' => '(left|right)',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-sidebar extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'mandatory_parent' => 'body',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-sidebar.html',
					'unique' => true,
				),

			),
		),
		'amp-social-share' => array(
			array(
				'attr_spec_list' => array(
					'data-share-endpoint' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => false,
						'allowed_protocol' => array(
							'bbmi',
							'fb-messenger',
							'ftp',
							'http',
							'https',
							'intent',
							'line',
							'mailto',
							'skype',
							'sms',
							'snapchat',
							'tel',
							'tg',
							'threema',
							'viber',
							'whatsapp',
						),
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
					'type' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-social-share extension .js script',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-social-share.html',
				),

			),
		),
		'amp-soundcloud' => array(
			array(
				'attr_spec_list' => array(
					'data-color' => array(
						'value_regex_casei' => '([0-9a-f]{3}){1,2}',
					),
					'data-secret-token' => array(
						'value_regex' => '[a-za-z0-9_-]+',
					),
					'data-trackid' => array(
						'mandatory' => true,
						'value_regex' => '[0-9]+',
					),
					'data-visual' => array(
						'value_regex' => 'true|false',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-soundcloud extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-soundcloud.html',
				),

			),
		),
		'amp-springboard-player' => array(
			array(
				'attr_spec_list' => array(
					'data-content-id' => array(
						'mandatory' => true,
					),
					'data-domain' => array(
						'mandatory' => true,
					),
					'data-items' => array(
						'mandatory' => true,
					),
					'data-mode' => array(
						'mandatory' => true,
						'value_regex_casei' => 'playlist|video',
					),
					'data-player-id' => array(
						'mandatory' => true,
						'value_regex_casei' => '[a-z0-9]+',
					),
					'data-site-id' => array(
						'mandatory' => true,
						'value_regex' => '[0-9]+',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-springboard-player extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-springboard-player.html',
				),

			),
		),
		'amp-sticky-ad' => array(
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-sticky-ad extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-app-banner',
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-sticky-ad.html',
					'unique' => true,
				),

			),
		),
		'amp-twitter' => array(
			array(
				'attr_spec_list' => array(
					'data-tweetid' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-twitter extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-twitter.html',
				),

			),
		),
		'amp-user-notification' => array(
			array(
				'attr_spec_list' => array(
					'data-dismiss-href' => array(
						'allow_empty' => false,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'data-show-if-href' => array(
						'allow_empty' => false,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-analytics extension .js script',
							'amp-user-notification extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-user-notification.html',
				),

			),
		),
		'amp-video' => array(
			array(
				'attr_spec_list' => array(
					'alt' => array(),
					'attribution' => array(),
					'autoplay' => array(
						'value' => '',
					),
					'controls' => array(
						'value' => '',
					),
					'loop' => array(
						'value' => '',
					),
					'media' => array(),
					'muted' => array(
						'value' => '',
					),
					'noloading' => array(
						'value' => '',
					),
					'placeholder' => array(),
					'poster' => array(),
					'preload' => array(
						'value_regex' => '(none|metadata|auto|)',
					),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
				),
				'tag_spec' => array(
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-video.html',
				),

			),
		),
		'amp-vimeo' => array(
			array(
				'attr_spec_list' => array(
					'data-videoid' => array(
						'mandatory' => true,
						'value_regex' => '[0-9]+',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-vimeo extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-vimeo.html',
				),

			),
		),
		'amp-vine' => array(
			array(
				'attr_spec_list' => array(
					'data-vineid' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-vine extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-vine.html',
				),

			),
		),
		'amp-youtube' => array(
			array(
				'attr_spec_list' => array(
					'autoplay' => array(),
					'data-videoid' => array(
						'mandatory' => true,
						'value_regex' => '[^=/?:]+',
					),
					'media' => array(),
					'noloading' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-youtube extension .js script',
					),
					'disallowed_ancestor' => array(
							'amp-sidebar',
					),
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-youtube.html',
				),

			),
		),
		'article' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'aside' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'audio' => array(
			array(
				'attr_spec_list' => array(
					'autoplay' => array(),
					'controls' => array(),
					'loop' => array(),
					'muted' => array(),
					'preload' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => false,
						'allowed_protocol' => array(
							'data',
							'https',
						),
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
					'mandatory_ancestor' => 'noscript',
					'mandatory_ancestor_suggested_alternative' => 'amp-audio',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-audio.html',
				),

			),
		),
		'b' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'bdi' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'bdo' => array(
			array(
				'attr_spec_list' => array(
					'dir' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'big' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'blockquote' => array(
			array(
				'attr_spec_list' => array(
					'align' => array(),
					'cite' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'fb-messenger',
							'ftp',
							'http',
							'https',
							'intent',
							'mailto',
							'skype',
							'sms',
							'snapchat',
							'tel',
							'tg',
							'threema',
							'twitter',
							'viber',
							'whatsapp',
						),
					),
				),
				'tag_spec' => array(),

			),
		),
		'body' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'mandatory' => true,
					'mandatory_parent' => 'html',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#required-markup',
					'unique' => true,
				),

			),
		),
		'br' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'button' => array(
			array(
				'attr_spec_list' => array(
					'disabled' => array(
						'value' => '',
					),
					'name' => array(),
					'role' => array(),
					'tabindex' => array(),
					'type' => array(),
					'value' => array(),
				),
				'tag_spec' => array(),

			),
			array(
				'attr_spec_list' => array(
					'name' => array(),
					'open-button' => array(
						'value' => '',
					),
					'role' => array(),
					'tabindex' => array(),
					'type' => array(),
					'value' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'amp-app-banner',
					'spec_name' => 'amp-app-banner button[open-button]',
				),

			),
		),
		'caption' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'center' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'circle' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'cx' => array(),
					'cy' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'r' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'sketch:type' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'cite' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'clippath' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'clippathunits' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'code' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'col' => array(
			array(
				'attr_spec_list' => array(
					'span' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'colgroup' => array(
			array(
				'attr_spec_list' => array(
					'span' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'data' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'datalist' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-form extension .js script',
					),
					'mandatory_ancestor' => 'form',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
				),

			),
		),
		'dd' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'defs' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'del' => array(
			array(
				'attr_spec_list' => array(
					'cite' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'fb-messenger',
							'ftp',
							'http',
							'https',
							'intent',
							'mailto',
							'skype',
							'sms',
							'snapchat',
							'tel',
							'tg',
							'threema',
							'twitter',
							'viber',
							'whatsapp',
						),
					),
					'datetime' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'desc' => array(
			array(
				'attr_spec_list' => array(
					'class' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'dfn' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'dir' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'div' => array(
			array(
				'attr_spec_list' => array(
					'align' => array(),
				),
				'tag_spec' => array(),

			),
			array(
				'attr_spec_list' => array(
					'align' => array(),
					'submit-success' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'form',
					'spec_name' => 'form > div [submit-success]',
				),

			),
			array(
				'attr_spec_list' => array(
					'align' => array(),
					'submit-error' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'form',
					'spec_name' => 'form > div [submit-error]',
				),

			),
		),
		'dl' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'dt' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'ellipse' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'cx' => array(),
					'cy' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'rx' => array(),
					'ry' => array(),
					'shape-rendering' => array(),
					'sketch:type' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'em' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'fieldset' => array(
			array(
				'attr_spec_list' => array(
					'disabled' => array(),
					'name' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'figcaption' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'figure' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'filter' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'filterres' => array(),
					'filterunits' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'height' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'primitiveunits' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
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					'xlink:arcrole' => array(),
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					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
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					'xmlns:xlink' => array(),
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				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
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					'overflow' => array(),
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					'width' => array(),
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					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
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						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
						'disallowed_domain' => array(
							'cdn.ampproject.org',
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					'action-xhr' => array(
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						'allowed_protocol' => array(
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						'disallowed_domain' => array(
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					'autocomplete' => array(),
					'custom-validation-reporting' => array(
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					'enctype' => array(),
					'method' => array(
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					'novalidate' => array(),
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				'tag_spec' => array(
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					'spec_name' => 'form [method=get]',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
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			),
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					'accept-charset' => array(),
					'action-xhr' => array(
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						'allow_relative' => true,
						'allowed_protocol' => array(
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					'clip-path' => array(),
					'clip-rule' => array(),
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					'xml:space' => array(),
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				'tag_spec' => array(
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					'clip-rule' => array(),
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					'dominant-baseline' => array(),
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					'fill-opacity' => array(),
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					'image-rendering' => array(),
					'kerning' => array(),
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					'lighting-color' => array(),
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					'opacity' => array(),
					'orientation' => array(),
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					'pointer-events' => array(),
					'shape-rendering' => array(),
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					'stop-opacity' => array(),
					'stroke' => array(),
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					'text-decoration' => array(),
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					'unicode' => array(),
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					'vert-adv-y' => array(),
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					'vert-origin-y' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
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				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
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					'class' => array(),
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					'font-size' => array(),
					'font-size-adjust' => array(),
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					'font-style' => array(),
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					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'shape-rendering' => array(),
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					'stop-opacity' => array(),
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					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
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					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xlink:actuate' => array(),
					'xlink:arcrole' => array(),
					'xlink:href' => array(
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					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
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				'tag_spec' => array(
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				'attr_spec_list' => array(
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		'h2' => array(
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				'attr_spec_list' => array(
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				'attr_spec_list' => array(
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				'tag_spec' => array(),

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				'attr_spec_list' => array(
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				),
				'tag_spec' => array(),

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				'attr_spec_list' => array(
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				),
				'tag_spec' => array(),

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		'h6' => array(
			array(
				'attr_spec_list' => array(
					'align' => array(),
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				'tag_spec' => array(),

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		'header' => array(
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				'attr_spec_list' => array(),
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				'tag_spec' => array(
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					'u1' => array(),
					'u2' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
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				'tag_spec' => array(
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					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
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			),
		),
		'hr' => array(
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				'tag_spec' => array(),

			),
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				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
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					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
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					'color-profile' => array(),
					'color-rendering' => array(),
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					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'height' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'preserveaspectratio' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
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					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
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				),
				'tag_spec' => array(
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					'border' => array(),
					'height' => array(),
					'ismap' => array(),
					'longdesc' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
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							'https',
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					'src' => array(
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						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
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							'https',
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					'width' => array(),
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				'tag_spec' => array(
					'html_format' => array(
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					'mandatory_ancestor' => 'noscript',
					'mandatory_ancestor_suggested_alternative' => 'amp-img',
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					'accesskey' => array(),
					'autocomplete' => array(),
					'autofocus' => array(),
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					'height' => array(),
					'inputmode' => array(),
					'list' => array(),
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					'maxlength' => array(),
					'min' => array(),
					'minlength' => array(),
					'multiple' => array(),
					'name' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
					),
					'pattern' => array(),
					'placeholder' => array(),
					'readonly' => array(),
					'required' => array(),
					'selectiondirection' => array(),
					'size' => array(),
					'spellcheck' => array(),
					'step' => array(),
					'tabindex' => array(),
					'type' => array(
						'blacklisted_value_regex' => '(^|\\s)(button|file|image|password|)(\\s|$)',
					),
					'value' => array(),
					'width' => array(),
				),
				'tag_spec' => array(
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
				),

			),
		),
		'ins' => array(
			array(
				'attr_spec_list' => array(
					'cite' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'fb-messenger',
							'ftp',
							'http',
							'https',
							'intent',
							'mailto',
							'skype',
							'sms',
							'snapchat',
							'tel',
							'tg',
							'threema',
							'twitter',
							'viber',
							'whatsapp',
						),
					),
					'datetime' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'kbd' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'label' => array(
			array(
				'attr_spec_list' => array(
					'for' => array(),
				),
				'tag_spec' => array(
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
				),

			),
		),
		'legend' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'li' => array(
			array(
				'attr_spec_list' => array(
					'value' => array(
						'value_regex' => '[0-9]*',
					),
				),
				'tag_spec' => array(),

			),
		),
		'line' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'sketch:type' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x1' => array(),
					'x2' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y1' => array(),
					'y2' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'lineargradient' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'gradienttransform' => array(),
					'gradientunits' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'shape-rendering' => array(),
					'spreadmethod' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x1' => array(),
					'x2' => array(),
					'xlink:actuate' => array(),
					'xlink:arcrole' => array(),
					'xlink:href' => array(
						'value_regex' => '#.*',
					),
					'xlink:role' => array(),
					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y1' => array(),
					'y2' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'link' => array(
			array(
				'attr_spec_list' => array(
					'charset' => array(
						'value_casei' => 'utf-8',
					),
					'color' => array(),
					'href' => array(),
					'hreflang' => array(),
					'media' => array(),
					'rel' => array(
						'blacklisted_value_regex' => '(^|\\s)(canonical|components|import|manifest|serviceworker|stylesheet|subresource|)(\\s|$)',
						'mandatory' => true,
					),
					'sizes' => array(),
					'target' => array(),
					'type' => array(),
				),
				'tag_spec' => array(
					'disallowed_ancestor' => array(
							'template',
					),
					'spec_name' => 'link rel=',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'charset' => array(
						'value_casei' => 'utf-8',
					),
					'color' => array(),
					'href' => array(
						'mandatory' => true,
					),
					'hreflang' => array(),
					'itemprop' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'sameas',
					),
					'media' => array(),
					'sizes' => array(),
					'target' => array(),
					'type' => array(),
				),
				'tag_spec' => array(
					'spec_name' => 'link itemprop=sameas',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'charset' => array(
						'value_casei' => 'utf-8',
					),
					'color' => array(),
					'href' => array(
						'mandatory' => true,
					),
					'hreflang' => array(),
					'itemprop' => array(
						'mandatory' => true,
					),
					'media' => array(),
					'sizes' => array(),
					'target' => array(),
					'type' => array(),
				),
				'tag_spec' => array(
					'spec_name' => 'link itemprop=',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
		),
		'listing' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'main' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'mark' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'marker' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'markerheight' => array(),
					'markerunits' => array(),
					'markerwidth' => array(),
					'mask' => array(),
					'opacity' => array(),
					'orient' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'preserveaspectratio' => array(),
					'refx' => array(),
					'refy' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'viewbox' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
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			),
		),
		'mask' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'height' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'maskcontentunits' => array(),
					'maskunits' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'width' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'meta' => array(
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'x-ua-compatible',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=x-ua-compatible',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(),
					'itemprop' => array(),
					'name' => array(
						'blacklisted_value_regex' => '(^|\\s)(viewport|content-disposition|revisit-after|apple-itunes-app)(\\s|$)',
					),
					'property' => array(),
				),
				'tag_spec' => array(
					'spec_name' => 'meta name= and content=',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
						'value_casei' => 'text/html; charset=utf-8',
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'content-type',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=content-type',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'content-language',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=content-language',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'pics-label',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=pics-label',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'imagetoolbar',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=imagetoolbar',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
						'value_casei' => 'text/css',
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'content-style-type',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=content-style-type',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
						'value_casei' => 'text/javascript',
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'content-script-type',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=content-script-type',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
			array(
				'attr_spec_list' => array(
					'content' => array(
						'mandatory' => true,
					),
					'http-equiv' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'resource-type',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'meta http-equiv=resource-type',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#html-tags',
				),

			),
		),
		'multicol' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'nav' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'nextid' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'nobr' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'noscript' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'disallowed_ancestor' => array(
							'noscript',
					),
					'html_format' => array(
							'amp',
					),
					'mandatory_ancestor' => 'body',
				),

			),
		),
		'o:p' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'ol' => array(
			array(
				'attr_spec_list' => array(
					'reversed' => array(
						'value' => '',
					),
					'start' => array(
						'value_regex' => '[0-9]*',
					),
					'type' => array(
						'value_regex' => '[1aaii]',
					),
				),
				'tag_spec' => array(),

			),
		),
		'optgroup' => array(
			array(
				'attr_spec_list' => array(
					'disabled' => array(),
					'label' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-form extension .js script',
					),
					'mandatory_parent' => 'select',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
				),

			),
		),
		'option' => array(
			array(
				'attr_spec_list' => array(
					'disabled' => array(),
					'label' => array(),
					'selected' => array(),
					'value' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-form extension .js script',
					),
					'mandatory_ancestor' => 'form',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
				),

			),
		),
		'p' => array(
			array(
				'attr_spec_list' => array(
					'align' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'path' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'd' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pathlength' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'sketch:type' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'pattern' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'height' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'patterncontentunits' => array(),
					'patterntransform' => array(),
					'patternunits' => array(),
					'pointer-events' => array(),
					'preserveaspectratio' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'viewbox' => array(),
					'visibility' => array(),
					'width' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xlink:actuate' => array(),
					'xlink:arcrole' => array(),
					'xlink:href' => array(
						'value_regex' => '#.*',
					),
					'xlink:role' => array(),
					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'polygon' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'points' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'sketch:type' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'polyline' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'points' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'sketch:type' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'pre' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'q' => array(
			array(
				'attr_spec_list' => array(
					'cite' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'fb-messenger',
							'ftp',
							'http',
							'https',
							'intent',
							'mailto',
							'skype',
							'sms',
							'snapchat',
							'tel',
							'tg',
							'threema',
							'twitter',
							'viber',
							'whatsapp',
						),
					),
				),
				'tag_spec' => array(),

			),
		),
		'radialgradient' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'cx' => array(),
					'cy' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'fx' => array(),
					'fy' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'gradienttransform' => array(),
					'gradientunits' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'r' => array(),
					'shape-rendering' => array(),
					'spreadmethod' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xlink:actuate' => array(),
					'xlink:arcrole' => array(),
					'xlink:href' => array(
						'value_regex' => '#.*',
					),
					'xlink:role' => array(),
					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'rb' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'rect' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'height' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'rx' => array(),
					'ry' => array(),
					'shape-rendering' => array(),
					'sketch:type' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'width' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'rp' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'rt' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'rtc' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'ruby' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		's' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'samp' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'script' => array(
			array(
				'attr_spec_list' => array(
					'type' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'application/ld+json',
					),
				),
				'tag_spec' => array(
					'spec_name' => 'script type=application/ld+json',
				),

			),
			array(
				'attr_spec_list' => array(
					'type' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'application/json',
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'mandatory_parent' => 'amp-analytics',
					'spec_name' => 'amp-analytics extension .json script',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-analytics.html',
				),

			),
			array(
				'attr_spec_list' => array(
					'amp-ad-metadata' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value' => '',
					),
					'type' => array(
						'mandatory' => true,
						'value_casei' => 'application/json',
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'mandatory_parent' => 'body',
					'spec_name' => 'amp-ad-metadata .json script',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-analytics.html',
				),

			),
			array(
				'attr_spec_list' => array(
					'type' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'application/json',
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
					'mandatory_parent' => 'amp-state',
					'spec_name' => 'amp-bind extension .json script',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-bind.html',
				),

			),
			array(
				'attr_spec_list' => array(
					'type' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value_casei' => 'application/json',
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
					'mandatory_parent' => 'amp-experiment',
					'spec_name' => 'amp-experiment extension .json script',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-experiment.html',
				),

			),
		),
		'section' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'disallowed_ancestor' => array(
							'amp-accordion',
					),
				),

			),
			array(
				'attr_spec_list' => array(
					'expanded' => array(
						'value' => '',
					),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
							'amp4ads',
					),
					'mandatory_parent' => 'amp-accordion',
					'spec_name' => 'amp-accordion > section',
				),

			),
		),
		'select' => array(
			array(
				'attr_spec_list' => array(
					'autofocus' => array(),
					'disabled' => array(),
					'multiple' => array(),
					'name' => array(),
					'required' => array(),
					'size' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-form extension .js script',
					),
					'mandatory_ancestor' => 'form',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
				),

			),
		),
		'small' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'source' => array(
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'type' => array(),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'amp-video',
					'spec_name' => 'amp-video > source',
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-video.html',
				),

			),
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'type' => array(),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'amp-audio',
					'spec_name' => 'amp-audio > source',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-audio.html',
				),

			),
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'type' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'audio',
					'spec_name' => 'audio > source',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-audio.html',
				),

			),
			array(
				'attr_spec_list' => array(
					'media' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => true,
						'allowed_protocol' => array(
							'https',
						),
					),
					'type' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'video',
					'spec_name' => 'video > source',
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-video.html',
				),

			),
		),
		'spacer' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'span' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'stop' => array(
			array(
				'attr_spec_list' => array(
					'offset' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'lineargradient',
					'spec_name' => 'lineargradient > stop',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
			array(
				'attr_spec_list' => array(
					'offset' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'radialgradient',
					'spec_name' => 'radialgradient > stop',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'strike' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'strong' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'style' => array(
			array(
				'attr_spec_list' => array(
					'amp-boilerplate' => array(
						'dispatch_key' => true,
						'mandatory' => true,
						'value' => '',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'head > style[amp-boilerplate]',
					),
					'html_format' => array(
							'amp',
					),
					'mandatory_alternatives' => 'noscript > style[amp-boilerplate]',
					'mandatory_parent' => 'noscript',
					'spec_name' => 'noscript > style[amp-boilerplate]',
					'spec_url' => 'https://github.com/ampproject/amphtml/blob/master/spec/amp-boilerplate.md',
					'unique' => true,
				),

			),
		),
		'sub' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'sup' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'svg' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'contentscripttype' => array(),
					'contentstyletype' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'height' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'preserveaspectratio' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'version' => array(
						'value_regex' => '(1.0|1.1)',
					),
					'viewbox' => array(),
					'visibility' => array(),
					'width' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y' => array(),
					'zoomandpan' => array(),
				),
				'tag_spec' => array(
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'symbol' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'preserveaspectratio' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'viewbox' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'table' => array(
			array(
				'attr_spec_list' => array(
					'align' => array(),
					'bgcolor' => array(),
					'border' => array(
						'value_regex' => '0|1',
					),
					'cellpadding' => array(),
					'cellspacing' => array(),
					'sortable' => array(),
					'width' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'tbody' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'td' => array(
			array(
				'attr_spec_list' => array(
					'align' => array(),
					'bgcolor' => array(),
					'colspan' => array(),
					'headers' => array(),
					'height' => array(),
					'rowspan' => array(),
					'valign' => array(),
					'width' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'template' => array(
			array(
				'attr_spec_list' => array(
					'type' => array(
						'mandatory' => true,
						'value' => 'amp-mustache',
					),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-mustache extension .js script',
					),
					'disallowed_ancestor' => array(
							'template',
					),
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-mustache.html',
				),

			),
		),
		'text' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'dx' => array(),
					'dy' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'lengthadjust' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'rotate' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'textlength' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'textarea' => array(
			array(
				'attr_spec_list' => array(
					'autocomplete' => array(),
					'autofocus' => array(),
					'cols' => array(),
					'disabled' => array(),
					'maxlength' => array(),
					'minlength' => array(),
					'name' => array(),
					'placeholder' => array(),
					'readonly' => array(),
					'required' => array(),
					'rows' => array(),
					'selectiondirection' => array(),
					'selectionend' => array(),
					'selectionstart' => array(),
					'spellcheck' => array(),
					'wrap' => array(),
				),
				'tag_spec' => array(
					'also_requires_tag' => array(
							'amp-form extension .js script',
					),
					'mandatory_ancestor' => 'form',
					'spec_url' => 'https://www.ampproject.org/docs/reference/extended/amp-form.html',
				),

			),
		),
		'textpath' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'method' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'spacing' => array(),
					'startoffset' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xlink:actuate' => array(),
					'xlink:arcrole' => array(),
					'xlink:href' => array(
						'value_regex' => '#.*',
					),
					'xlink:role' => array(),
					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'tfoot' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'th' => array(
			array(
				'attr_spec_list' => array(
					'abbr' => array(),
					'align' => array(),
					'bgcolor' => array(),
					'colspan' => array(),
					'headers' => array(),
					'height' => array(),
					'rowspan' => array(),
					'scope' => array(),
					'sorted' => array(),
					'valign' => array(),
					'width' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'thead' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'time' => array(
			array(
				'attr_spec_list' => array(
					'datetime' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'title' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'spec_name' => 'title',
				),

			),
			array(
				'attr_spec_list' => array(
					'class' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_name' => 'svg title',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'tr' => array(
			array(
				'attr_spec_list' => array(
					'align' => array(),
					'bgcolor' => array(),
					'height' => array(),
					'valign' => array(),
				),
				'tag_spec' => array(),

			),
		),
		'track' => array(
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'value_regex' => '(captions|descriptions|chapters|metadata)',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'audio',
					'spec_name' => 'audio > track',
				),

			),
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'mandatory' => true,
						'value_casei' => 'subtitles',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'audio',
					'spec_name' => 'audio > track[kind=subtitles]',
				),

			),
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'value_regex' => '(captions|descriptions|chapters|metadata)',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'video',
					'spec_name' => 'video > track',
				),

			),
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'mandatory' => true,
						'value_casei' => 'subtitles',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'video',
					'spec_name' => 'video > track[kind=subtitles]',
				),

			),
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'value_regex' => '(captions|descriptions|chapters|metadata)',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'amp-audio',
					'spec_name' => 'amp-audio > track',
				),

			),
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'mandatory' => true,
						'value_casei' => 'subtitles',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'amp-audio',
					'spec_name' => 'amp-audio > track[kind=subtitles]',
				),

			),
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'value_regex' => '(captions|descriptions|chapters|metadata)',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'amp-video',
					'spec_name' => 'amp-video > track',
				),

			),
			array(
				'attr_spec_list' => array(
					'default' => array(
						'value' => '',
					),
					'kind' => array(
						'mandatory' => true,
						'value_casei' => 'subtitles',
					),
					'label' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'mandatory' => true,
						'allow_relative' => false,
						'allowed_protocol' => array(
							'https',
						),
					),
					'srclang' => array(
						'mandatory' => true,
					),
				),
				'tag_spec' => array(
					'mandatory_parent' => 'amp-video',
					'spec_name' => 'amp-video > track[kind=subtitles]',
				),

			),
		),
		'tref' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'xlink:actuate' => array(),
					'xlink:arcrole' => array(),
					'xlink:href' => array(
						'value_regex' => '#.*',
					),
					'xlink:role' => array(),
					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'tspan' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'dx' => array(),
					'dy' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'lengthadjust' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'rotate' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'textlength' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'tt' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
		'u' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'ul' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'use' => array(
			array(
				'attr_spec_list' => array(
					'alignment-baseline' => array(),
					'baseline-shift' => array(),
					'class' => array(),
					'clip' => array(),
					'clip-path' => array(),
					'clip-rule' => array(),
					'color' => array(),
					'color-interpolation' => array(),
					'color-interpolation-filters' => array(),
					'color-profile' => array(),
					'color-rendering' => array(),
					'cursor' => array(),
					'direction' => array(),
					'display' => array(),
					'dominant-baseline' => array(),
					'enable-background' => array(),
					'externalresourcesrequired' => array(),
					'fill' => array(),
					'fill-opacity' => array(),
					'fill-rule' => array(),
					'filter' => array(),
					'flood-color' => array(),
					'flood-opacity' => array(),
					'font-family' => array(),
					'font-size' => array(),
					'font-size-adjust' => array(),
					'font-stretch' => array(),
					'font-style' => array(),
					'font-variant' => array(),
					'font-weight' => array(),
					'glyph-orientation-horizontal' => array(),
					'glyph-orientation-vertical' => array(),
					'height' => array(),
					'image-rendering' => array(),
					'kerning' => array(),
					'letter-spacing' => array(),
					'lighting-color' => array(),
					'marker-end' => array(),
					'marker-mid' => array(),
					'marker-start' => array(),
					'mask' => array(),
					'opacity' => array(),
					'overflow' => array(),
					'pointer-events' => array(),
					'requiredextensions' => array(),
					'requiredfeatures' => array(),
					'shape-rendering' => array(),
					'stop-color' => array(),
					'stop-opacity' => array(),
					'stroke' => array(),
					'stroke-dasharray' => array(),
					'stroke-dashoffset' => array(),
					'stroke-linecap' => array(),
					'stroke-linejoin' => array(),
					'stroke-miterlimit' => array(),
					'stroke-opacity' => array(),
					'stroke-width' => array(),
					'systemlanguage' => array(),
					'text-anchor' => array(),
					'text-decoration' => array(),
					'text-rendering' => array(),
					'transform' => array(),
					'unicode-bidi' => array(),
					'visibility' => array(),
					'width' => array(),
					'word-spacing' => array(),
					'writing-mode' => array(),
					'x' => array(),
					'xlink:actuate' => array(),
					'xlink:arcrole' => array(),
					'xlink:href' => array(
						'value_regex' => '#.*',
					),
					'xlink:role' => array(),
					'xlink:show' => array(),
					'xlink:title' => array(),
					'xlink:type' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'y' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'var' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'video' => array(
			array(
				'attr_spec_list' => array(
					'autoplay' => array(),
					'controls' => array(),
					'height' => array(),
					'loop' => array(),
					'muted' => array(),
					'poster' => array(),
					'preload' => array(),
					'src' => array(
						'blacklisted_value_regex' => '__amp_source_origin',
						'allow_relative' => false,
						'allowed_protocol' => array(
							'data',
							'https',
						),
					),
					'width' => array(),
				),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
					'mandatory_ancestor' => 'noscript',
					'mandatory_ancestor_suggested_alternative' => 'amp-video',
					'spec_url' => 'https://www.ampproject.org/docs/reference/amp-video.html',
				),

			),
		),
		'view' => array(
			array(
				'attr_spec_list' => array(
					'externalresourcesrequired' => array(),
					'preserveaspectratio' => array(),
					'viewbox' => array(),
					'viewtarget' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
					'zoomandpan' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'vkern' => array(
			array(
				'attr_spec_list' => array(
					'g1' => array(),
					'g2' => array(),
					'k' => array(),
					'u1' => array(),
					'u2' => array(),
					'xml:base' => array(),
					'xml:lang' => array(),
					'xml:space' => array(),
					'xmlns' => array(),
					'xmlns:xlink' => array(),
				),
				'tag_spec' => array(
					'mandatory_ancestor' => 'svg',
					'spec_url' => 'https://www.ampproject.org/docs/reference/spec.html#svg',
				),

			),
		),
		'wbr' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(),

			),
		),
		'xmp' => array(
			array(
				'attr_spec_list' => array(),
				'tag_spec' => array(
					'html_format' => array(
							'amp',
					),
				),

			),
		),
	);

	private static $layout_allowed_attrs = array(
		'height' => array(),
		'heights' => array(),
		'layout' => array(),
		'sizes' => array(),
		'width' => array(),

	);


	private static $globally_allowed_attrs = array(
		'accesskey' => array(),
		'amp-access' => array(),
		'amp-access-behavior' => array(),
		'amp-access-hide' => array(),
		'amp-access-id' => array(),
		'amp-access-loader' => array(),
		'amp-access-loading' => array(),
		'amp-access-off' => array(),
		'amp-access-on' => array(),
		'amp-access-show' => array(),
		'amp-access-style' => array(),
		'amp-access-template' => array(),
		'aria-activedescendant' => array(),
		'aria-atomic' => array(),
		'aria-autocomplete' => array(),
		'aria-busy' => array(),
		'aria-checked' => array(),
		'aria-controls' => array(),
		'aria-describedby' => array(),
		'aria-disabled' => array(),
		'aria-dropeffect' => array(),
		'aria-expanded' => array(),
		'aria-flowto' => array(),
		'aria-grabbed' => array(),
		'aria-haspopup' => array(),
		'aria-hidden' => array(),
		'aria-invalid' => array(),
		'aria-label' => array(),
		'aria-labelledby' => array(),
		'aria-level' => array(),
		'aria-live' => array(),
		'aria-multiline' => array(),
		'aria-multiselectable' => array(),
		'aria-orientation' => array(),
		'aria-owns' => array(),
		'aria-posinset' => array(),
		'aria-pressed' => array(),
		'aria-readonly' => array(),
		'aria-relevant' => array(),
		'aria-required' => array(),
		'aria-selected' => array(),
		'aria-setsize' => array(),
		'aria-sort' => array(),
		'aria-valuemax' => array(),
		'aria-valuemin' => array(),
		'aria-valuenow' => array(),
		'aria-valuetext' => array(),
		'class' => array(
					'blacklisted_value_regex' => '(^|\\w)i-amphtml-',
		),
		'dir' => array(),
		'draggable' => array(),
		'fallback' => array(
					'value' => '',
		),
		'i-amp-access-id' => array(),
		'id' => array(
					'blacklisted_value_regex' => '^i-amphtml-',
		),
		'itemid' => array(),
		'itemprop' => array(),
		'itemref' => array(),
		'itemscope' => array(),
		'itemtype' => array(),
		'lang' => array(),
		'lightbox' => array(),
		'on' => array(),
		'overflow' => array(),
		'placeholder' => array(
					'value' => '',
		),
		'role' => array(),
		'tabindex' => array(),
		'title' => array(),
		'translate' => array(),
		'validation-for' => array(),
		'visible-when-invalid' => array(
					'value_regex' => '(badinput|customerror|patternmismatch|rangeoverflow|rangeunderflow|stepmismatch|toolong|typemismatch|valuemissing)',
		),

	);

	public static function get_allowed_tags() {
		return self::$allowed_tags;
	}

	public static function get_allowed_attributes() {
		return self::$globally_allowed_attrs;
	}

	public static function get_layout_attributes() {
		return self::$layout_allowed_attrs;
	}

}

?>