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msd2/wordpress/wp-content/plugins/amp/includes/sanitizers/class-amp-rule-spec.php

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+<?php
+/**
+ * Class AMP_Rule_Spec
+ *
+ * @package AMP
+ */
+
+/**
+ * Class AMP_Rule_Spec
+ *
+ * Set of constants used throughout the sanitizer.
+ */
+abstract class AMP_Rule_Spec {
+
+	/**
+	 * AMP rule_spec types
+	 */
+	const ATTR_SPEC_LIST = 'attr_spec_list';
+	const TAG_SPEC       = 'tag_spec';
+	const CDATA          = 'cdata';
+
+	/**
+	 * AMP attr_spec value check results.
+	 *
+	 * In 0.7 these changed from strings to integers to speed up comparisons.
+	 */
+	const PASS           = 1;
+	const FAIL           = 0;
+	const NOT_APPLICABLE = -1;
+
+	/**
+	 * HTML Element Tag rule names
+	 */
+	const DISALLOWED_ANCESTOR = 'disallowed_ancestor';
+	const MANDATORY_ANCESTOR  = 'mandatory_ancestor';
+	const MANDATORY_PARENT    = 'mandatory_parent';
+	const DESCENDANT_TAG_LIST = 'descendant_tag_list';
+	const CHILD_TAGS          = 'child_tags';
+
+	/**
+	 * HTML Element Attribute rule names
+	 */
+	const ALLOW_EMPTY             = 'allow_empty';
+	const ALLOW_RELATIVE          = 'allow_relative';
+	const ALLOWED_PROTOCOL        = 'protocol';
+	const ALTERNATIVE_NAMES       = 'alternative_names';
+	const BLACKLISTED_VALUE_REGEX = 'blacklisted_value_regex';
+	const DISALLOWED_DOMAIN       = 'disallowed_domain';
+	const MANDATORY               = 'mandatory';
+	const VALUE                   = 'value';
+	const VALUE_CASEI             = 'value_casei';
+	const VALUE_REGEX             = 'value_regex';
+	const VALUE_REGEX_CASEI       = 'value_regex_casei';
+	const VALUE_PROPERTIES        = 'value_properties';
+	const VALUE_URL               = 'value_url';
+
+	/**
+	 * Supported layout values.
+	 *
+	 * @since 1.0
+	 * @var array
+	 */
+	public static $layout_enum = array(
+		1 => 'nodisplay',
+		2 => 'fixed',
+		3 => 'fixed-height',
+		4 => 'responsive',
+		5 => 'container',
+		6 => 'fill',
+		7 => 'flex-item',
+		8 => 'fluid',
+		9 => 'intrinsic',
+	);
+
+	/**
+	 * List of boolean attributes.
+	 *
+	 * @since 0.7
+	 * @var array
+	 */
+	public static $boolean_attributes = array(
+		'allowfullscreen',
+		'async',
+		'autofocus',
+		'autoplay',
+		'checked',
+		'compact',
+		'controls',
+		'declare',
+		'default',
+		'defaultchecked',
+		'defaultmuted',
+		'defaultselected',
+		'defer',
+		'disabled',
+		'draggable',
+		'enabled',
+		'formnovalidate',
+		'hidden',
+		'indeterminate',
+		'inert',
+		'ismap',
+		'itemscope',
+		'loop',
+		'multiple',
+		'muted',
+		'nohref',
+		'noresize',
+		'noshade',
+		'novalidate',
+		'nowrap',
+		'open',
+		'pauseonexit',
+		'readonly',
+		'required',
+		'reversed',
+		'scoped',
+		'seamless',
+		'selected',
+		'sortable',
+		'spellcheck',
+		'translate',
+		'truespeed',
+		'typemustmatch',
+		'visible',
+	);
+
+	/**
+	 * Additional allowed tags.
+	 *
+	 * @var array
+	 */
+	public static $additional_allowed_tags = array(
+
+		// An experimental tag with no protoascii.
+		'amp-share-tracking' => array(
+			'attr_spec_list' => array(),
+			'tag_spec'       => array(),
+		),
+	);
+}