/**
* Contains Translation_Entry class
*
* @version $Id: entry.php 1157 2015-11-20 04:30:11Z dd32 $
* @package pomo
* @subpackage entry
*/
if ( ! class_exists( 'Translation_Entry', false ) ) :
/**
* Translation_Entry class encapsulates a translatable string.
*
* @since 2.8.0
*/
#[AllowDynamicProperties]
class Translation_Entry {
/**
* Whether the entry contains a string and its plural form, default is false.
*
* @var bool
*/
public $is_plural = false;
public $context = null;
public $singular = null;
public $plural = null;
public $translations = array();
public $translator_comments = '';
public $extracted_comments = '';
public $references = array();
public $flags = array();
/**
* @param array $args {
* Arguments array, supports the following keys:
*
* @type string $singular The string to translate, if omitted an
* empty entry will be created.
* @type string $plural The plural form of the string, setting
* this will set `$is_plural` to true.
* @type array $translations Translations of the string and possibly
* its plural forms.
* @type string $context A string differentiating two equal strings
* used in different contexts.
* @type string $translator_comments Comments left by translators.
* @type string $extracted_comments Comments left by developers.
* @type array $references Places in the code this string is used, in
* relative_to_root_path/file.php:linenum form.
* @type array $flags Flags like php-format.
* }
*/
public function __construct( $args = array() ) {
// If no singular -- empty object.
if ( ! isset( $args['singular'] ) ) {
return;
}
// Get member variable values from args hash.
foreach ( $args as $varname => $value ) {
$this->$varname = $value;
}
if ( isset( $args['plural'] ) && $args['plural'] ) {
$this->is_plural = true;
}
if ( ! is_array( $this->translations ) ) {
$this->translations = array();
}
if ( ! is_array( $this->references ) ) {
$this->references = array();
}
if ( ! is_array( $this->flags ) ) {
$this->flags = array();
}
}
/**
* PHP4 constructor.
*
* @since 2.8.0
* @deprecated 5.4.0 Use __construct() instead.
*
* @see Translation_Entry::__construct()
*/
public function Translation_Entry( $args = array() ) {
_deprecated_constructor( self::class, '5.4.0', static::class );
self::__construct( $args );
}
/**
* Generates a unique key for this entry.
*
* @since 2.8.0
*
* @return string|false The key or false if the entry is null.
*/
public function key() {
if ( null === $this->singular ) {
return false;
}
// Prepend context and EOT, like in MO files.
$key = ! $this->context ? $this->singular : $this->context . "\4" . $this->singular;
// Standardize on \n line endings.
$key = str_replace( array( "\r\n", "\r" ), "\n", $key );
return $key;
}
/**
* Merges another translation entry with the current one.
*
* @since 2.8.0
*
* @param Translation_Entry $other Other translation entry.
*/
public function merge_with( &$other ) {
$this->flags = array_unique( array_merge( $this->flags, $other->flags ) );
$this->references = array_unique( array_merge( $this->references, $other->references ) );
if ( $this->extracted_comments !== $other->extracted_comments ) {
$this->extracted_comments .= $other->extracted_comments;
}
}
}
endif;
/**
* WP_Theme_JSON_Schema class
*
* @package WordPress
* @subpackage Theme
* @since 5.9.0
*/
/**
* Class that migrates a given theme.json structure to the latest schema.
*
* This class is for internal core usage and is not supposed to be used by extenders (plugins and/or themes).
* This is a low-level API that may need to do breaking changes. Please,
* use get_global_settings, get_global_styles, and get_global_stylesheet instead.
*
* @since 5.9.0
* @access private
*/
#[AllowDynamicProperties]
class WP_Theme_JSON_Schema {
/**
* Maps old properties to their new location within the schema's settings.
* This will be applied at both the defaults and individual block levels.
*/
const V1_TO_V2_RENAMED_PATHS = array(
'border.customRadius' => 'border.radius',
'spacing.customMargin' => 'spacing.margin',
'spacing.customPadding' => 'spacing.padding',
'typography.customLineHeight' => 'typography.lineHeight',
);
/**
* Function that migrates a given theme.json structure to the last version.
*
* @since 5.9.0
* @since 6.6.0 Migrate up to v3 and add $origin parameter.
*
* @param array $theme_json The structure to migrate.
* @param string $origin Optional. What source of data this object represents.
* One of 'blocks', 'default', 'theme', or 'custom'. Default 'theme'.
* @return array The structure in the last version.
*/
public static function migrate( $theme_json, $origin = 'theme' ) {
if ( ! isset( $theme_json['version'] ) ) {
$theme_json = array(
'version' => WP_Theme_JSON::LATEST_SCHEMA,
);
}
// Migrate each version in order starting with the current version.
switch ( $theme_json['version'] ) {
case 1:
$theme_json = self::migrate_v1_to_v2( $theme_json );
// Deliberate fall through. Once migrated to v2, also migrate to v3.
case 2:
$theme_json = self::migrate_v2_to_v3( $theme_json, $origin );
}
return $theme_json;
}
/**
* Removes the custom prefixes for a few properties
* that were part of v1:
*
* 'border.customRadius' => 'border.radius',
* 'spacing.customMargin' => 'spacing.margin',
* 'spacing.customPadding' => 'spacing.padding',
* 'typography.customLineHeight' => 'typography.lineHeight',
*
* @since 5.9.0
*
* @param array $old Data to migrate.
*
* @return array Data without the custom prefixes.
*/
private static function migrate_v1_to_v2( $old ) {
// Copy everything.
$new = $old;
// Overwrite the things that changed.
if ( isset( $old['settings'] ) ) {
$new['settings'] = self::rename_paths( $old['settings'], self::V1_TO_V2_RENAMED_PATHS );
}
// Set the new version.
$new['version'] = 2;
return $new;
}
/**
* Migrates from v2 to v3.
*
* - Sets settings.typography.defaultFontSizes to false if settings.typography.fontSizes are defined.
* - Sets settings.spacing.defaultSpacingSizes to false if settings.spacing.spacingSizes are defined.
* - Prevents settings.spacing.spacingSizes from merging with settings.spacing.spacingScale by
* unsetting spacingScale when spacingSizes are defined.
*
* @since 6.6.0
*
* @param array $old Data to migrate.
* @param string $origin What source of data this object represents.
* One of 'blocks', 'default', 'theme', or 'custom'.
* @return array Data with defaultFontSizes set to false.
*/
private static function migrate_v2_to_v3( $old, $origin ) {
// Copy everything.
$new = $old;
// Set the new version.
$new['version'] = 3;
/*
* Remaining changes do not need to be applied to the custom origin,
* as they should take on the value of the theme origin.
*/
if ( 'custom' === $origin ) {
return $new;
}
/*
* Even though defaultFontSizes and defaultSpacingSizes are new
* settings, we need to migrate them as they each control
* PRESETS_METADATA prevent_override values which were previously
* hardcoded to false. This only needs to happen when the theme provides
* fontSizes or spacingSizes as they could match the default ones and
* affect the generated CSS.
*/
if ( isset( $old['settings']['typography']['fontSizes'] ) ) {
$new['settings']['typography']['defaultFontSizes'] = false;
}
/*
* Similarly to defaultFontSizes, we need to migrate defaultSpacingSizes
* as it controls the PRESETS_METADATA prevent_override which was
* previously hardcoded to false. This only needs to happen when the
* theme provided spacing sizes via spacingSizes or spacingScale.
*/
if (
isset( $old['settings']['spacing']['spacingSizes'] ) ||
isset( $old['settings']['spacing']['spacingScale'] )
) {
$new['settings']['spacing']['defaultSpacingSizes'] = false;
}
/*
* In v3 spacingSizes is merged with the generated spacingScale sizes
* instead of completely replacing them. The v3 behavior is what was
* documented for the v2 schema, but the code never actually did work
* that way. Instead of surprising users with a behavior change two
* years after the fact at the same time as a v3 update is introduced,
* we'll continue using the "bugged" behavior for v2 themes. And treat
* the "bug fix" as a breaking change for v3.
*/
if ( isset( $old['settings']['spacing']['spacingSizes'] ) ) {
unset( $new['settings']['spacing']['spacingScale'] );
}
return $new;
}
/**
* Processes the settings subtree.
*
* @since 5.9.0
*
* @param array $settings Array to process.
* @param array $paths_to_rename Paths to rename.
*
* @return array The settings in the new format.
*/
private static function rename_paths( $settings, $paths_to_rename ) {
$new_settings = $settings;
// Process any renamed/moved paths within default settings.
self::rename_settings( $new_settings, $paths_to_rename );
// Process individual block settings.
if ( isset( $new_settings['blocks'] ) && is_array( $new_settings['blocks'] ) ) {
foreach ( $new_settings['blocks'] as &$block_settings ) {
self::rename_settings( $block_settings, $paths_to_rename );
}
}
return $new_settings;
}
/**
* Processes a settings array, renaming or moving properties.
*
* @since 5.9.0
*
* @param array $settings Reference to settings either defaults or an individual block's.
* @param array $paths_to_rename Paths to rename.
*/
private static function rename_settings( &$settings, $paths_to_rename ) {
foreach ( $paths_to_rename as $original => $renamed ) {
$original_path = explode( '.', $original );
$renamed_path = explode( '.', $renamed );
$current_value = _wp_array_get( $settings, $original_path, null );
if ( null !== $current_value ) {
_wp_array_set( $settings, $renamed_path, $current_value );
self::unset_setting_by_path( $settings, $original_path );
}
}
}
/**
* Removes a property from within the provided settings by its path.
*
* @since 5.9.0
*
* @param array $settings Reference to the current settings array.
* @param array $path Path to the property to be removed.
*/
private static function unset_setting_by_path( &$settings, $path ) {
$tmp_settings = &$settings;
$last_key = array_pop( $path );
foreach ( $path as $key ) {
$tmp_settings = &$tmp_settings[ $key ];
}
unset( $tmp_settings[ $last_key ] );
}
}
/**
* Post API: Walker_PageDropdown class
*
* @package WordPress
* @subpackage Post
* @since 4.4.0
*/
/**
* Core class used to create an HTML drop-down list of pages.
*
* @since 2.1.0
*
* @see Walker
*/
class Walker_PageDropdown extends Walker {
/**
* What the class handles.
*
* @since 2.1.0
* @var string
*
* @see Walker::$tree_type
*/
public $tree_type = 'page';
/**
* Database fields to use.
*
* @since 2.1.0
* @var string[]
*
* @see Walker::$db_fields
* @todo Decouple this
*/
public $db_fields = array(
'parent' => 'post_parent',
'id' => 'ID',
);
/**
* Starts the element output.
*
* @since 2.1.0
* @since 5.9.0 Renamed `$page` to `$data_object` and `$id` to `$current_object_id`
* to match parent class for PHP 8 named parameter support.
*
* @see Walker::start_el()
*
* @param string $output Used to append additional content. Passed by reference.
* @param WP_Post $data_object Page data object.
* @param int $depth Optional. Depth of page in reference to parent pages.
* Used for padding. Default 0.
* @param array $args Optional. Uses 'selected' argument for selected page to
* set selected HTML attribute for option element. Uses
* 'value_field' argument to fill "value" attribute.
* See wp_dropdown_pages(). Default empty array.
* @param int $current_object_id Optional. ID of the current page. Default 0.
*/
public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {
// Restores the more descriptive, specific name for use within this method.
$page = $data_object;
$pad = str_repeat( ' ', $depth * 3 );
if ( ! isset( $args['value_field'] ) || ! isset( $page->{$args['value_field']} ) ) {
$args['value_field'] = 'ID';
}
$output .= "\t\n";
}
}
/**
* HTML API: WP_HTML_Open_Elements class
*
* @package WordPress
* @subpackage HTML-API
* @since 6.4.0
*/
/**
* Core class used by the HTML processor during HTML parsing
* for managing the stack of open elements.
*
* This class is designed for internal use by the HTML processor.
*
* > Initially, the stack of open elements is empty. The stack grows
* > downwards; the topmost node on the stack is the first one added
* > to the stack, and the bottommost node of the stack is the most
* > recently added node in the stack (notwithstanding when the stack
* > is manipulated in a random access fashion as part of the handling
* > for misnested tags).
*
* @since 6.4.0
*
* @access private
*
* @see https://html.spec.whatwg.org/#stack-of-open-elements
* @see WP_HTML_Processor
*/
class WP_HTML_Open_Elements {
/**
* Holds the stack of open element references.
*
* @since 6.4.0
*
* @var WP_HTML_Token[]
*/
public $stack = array();
/**
* Whether a P element is in button scope currently.
*
* This class optimizes scope lookup by pre-calculating
* this value when elements are added and removed to the
* stack of open elements which might change its value.
* This avoids frequent iteration over the stack.
*
* @since 6.4.0
*
* @var bool
*/
private $has_p_in_button_scope = false;
/**
* A function that will be called when an item is popped off the stack of open elements.
*
* The function will be called with the popped item as its argument.
*
* @since 6.6.0
*
* @var Closure|null
*/
private $pop_handler = null;
/**
* A function that will be called when an item is pushed onto the stack of open elements.
*
* The function will be called with the pushed item as its argument.
*
* @since 6.6.0
*
* @var Closure|null
*/
private $push_handler = null;
/**
* Sets a pop handler that will be called when an item is popped off the stack of
* open elements.
*
* The function will be called with the pushed item as its argument.
*
* @since 6.6.0
*
* @param Closure $handler The handler function.
*/
public function set_pop_handler( Closure $handler ): void {
$this->pop_handler = $handler;
}
/**
* Sets a push handler that will be called when an item is pushed onto the stack of
* open elements.
*
* The function will be called with the pushed item as its argument.
*
* @since 6.6.0
*
* @param Closure $handler The handler function.
*/
public function set_push_handler( Closure $handler ): void {
$this->push_handler = $handler;
}
/**
* Returns the name of the node at the nth position on the stack
* of open elements, or `null` if no such position exists.
*
* Note that this uses a 1-based index, which represents the
* "nth item" on the stack, counting from the top, where the
* top-most element is the 1st, the second is the 2nd, etc...
*
* @since 6.7.0
*
* @param int $nth Retrieve the nth item on the stack, with 1 being
* the top element, 2 being the second, etc...
* @return WP_HTML_Token|null Name of the node on the stack at the given location,
* or `null` if the location isn't on the stack.
*/
public function at( int $nth ): ?WP_HTML_Token {
foreach ( $this->walk_down() as $item ) {
if ( 0 === --$nth ) {
return $item;
}
}
return null;
}
/**
* Reports if a node of a given name is in the stack of open elements.
*
* @since 6.7.0
*
* @param string $node_name Name of node for which to check.
* @return bool Whether a node of the given name is in the stack of open elements.
*/
public function contains( string $node_name ): bool {
foreach ( $this->walk_up() as $item ) {
if ( $node_name === $item->node_name ) {
return true;
}
}
return false;
}
/**
* Reports if a specific node is in the stack of open elements.
*
* @since 6.4.0
*
* @param WP_HTML_Token $token Look for this node in the stack.
* @return bool Whether the referenced node is in the stack of open elements.
*/
public function contains_node( WP_HTML_Token $token ): bool {
foreach ( $this->walk_up() as $item ) {
if ( $token === $item ) {
return true;
}
}
return false;
}
/**
* Returns how many nodes are currently in the stack of open elements.
*
* @since 6.4.0
*
* @return int How many node are in the stack of open elements.
*/
public function count(): int {
return count( $this->stack );
}
/**
* Returns the node at the end of the stack of open elements,
* if one exists. If the stack is empty, returns null.
*
* @since 6.4.0
*
* @return WP_HTML_Token|null Last node in the stack of open elements, if one exists, otherwise null.
*/
public function current_node(): ?WP_HTML_Token {
$current_node = end( $this->stack );
return $current_node ? $current_node : null;
}
/**
* Indicates if the current node is of a given type or name.
*
* It's possible to pass either a node type or a node name to this function.
* In the case there is no current element it will always return `false`.
*
* Example:
*
* // Is the current node a text node?
* $stack->current_node_is( '#text' );
*
* // Is the current node a DIV element?
* $stack->current_node_is( 'DIV' );
*
* // Is the current node any element/tag?
* $stack->current_node_is( '#tag' );
*
* @see WP_HTML_Tag_Processor::get_token_type
* @see WP_HTML_Tag_Processor::get_token_name
*
* @since 6.7.0
*
* @access private
*
* @param string $identity Check if the current node has this name or type (depending on what is provided).
* @return bool Whether there is a current element that matches the given identity, whether a token name or type.
*/
public function current_node_is( string $identity ): bool {
$current_node = end( $this->stack );
if ( false === $current_node ) {
return false;
}
$current_node_name = $current_node->node_name;
return (
$current_node_name === $identity ||
( '#doctype' === $identity && 'html' === $current_node_name ) ||
( '#tag' === $identity && ctype_upper( $current_node_name ) )
);
}
/**
* Returns whether an element is in a specific scope.
*
* @since 6.4.0
*
* @see https://html.spec.whatwg.org/#has-an-element-in-the-specific-scope
*
* @param string $tag_name Name of tag check.
* @param string[] $termination_list List of elements that terminate the search.
* @return bool Whether the element was found in a specific scope.
*/
public function has_element_in_specific_scope( string $tag_name, $termination_list ): bool {
foreach ( $this->walk_up() as $node ) {
$namespaced_name = 'html' === $node->namespace
? $node->node_name
: "{$node->namespace} {$node->node_name}";
if ( $namespaced_name === $tag_name ) {
return true;
}
if (
'(internal: H1 through H6 - do not use)' === $tag_name &&
in_array( $namespaced_name, array( 'H1', 'H2', 'H3', 'H4', 'H5', 'H6' ), true )
) {
return true;
}
if ( in_array( $namespaced_name, $termination_list, true ) ) {
return false;
}
}
return false;
}
/**
* Returns whether a particular element is in scope.
*
* > The stack of open elements is said to have a particular element in
* > scope when it has that element in the specific scope consisting of
* > the following element types:
* >
* > - applet
* > - caption
* > - html
* > - table
* > - td
* > - th
* > - marquee
* > - object
* > - template
* > - MathML mi
* > - MathML mo
* > - MathML mn
* > - MathML ms
* > - MathML mtext
* > - MathML annotation-xml
* > - SVG foreignObject
* > - SVG desc
* > - SVG title
*
* @since 6.4.0
* @since 6.7.0 Full support.
*
* @see https://html.spec.whatwg.org/#has-an-element-in-scope
*
* @param string $tag_name Name of tag to check.
* @return bool Whether given element is in scope.
*/
public function has_element_in_scope( string $tag_name ): bool {
return $this->has_element_in_specific_scope(
$tag_name,
array(
'APPLET',
'CAPTION',
'HTML',
'TABLE',
'TD',
'TH',
'MARQUEE',
'OBJECT',
'TEMPLATE',
'math MI',
'math MO',
'math MN',
'math MS',
'math MTEXT',
'math ANNOTATION-XML',
'svg FOREIGNOBJECT',
'svg DESC',
'svg TITLE',
)
);
}
/**
* Returns whether a particular element is in list item scope.
*
* > The stack of open elements is said to have a particular element
* > in list item scope when it has that element in the specific scope
* > consisting of the following element types:
* >
* > - All the element types listed above for the has an element in scope algorithm.
* > - ol in the HTML namespace
* > - ul in the HTML namespace
*
* @since 6.4.0
* @since 6.5.0 Implemented: no longer throws on every invocation.
* @since 6.7.0 Supports all required HTML elements.
*
* @see https://html.spec.whatwg.org/#has-an-element-in-list-item-scope
*
* @param string $tag_name Name of tag to check.
* @return bool Whether given element is in scope.
*/
public function has_element_in_list_item_scope( string $tag_name ): bool {
return $this->has_element_in_specific_scope(
$tag_name,
array(
'APPLET',
'BUTTON',
'CAPTION',
'HTML',
'TABLE',
'TD',
'TH',
'MARQUEE',
'OBJECT',
'OL',
'TEMPLATE',
'UL',
'math MI',
'math MO',
'math MN',
'math MS',
'math MTEXT',
'math ANNOTATION-XML',
'svg FOREIGNOBJECT',
'svg DESC',
'svg TITLE',
)
);
}
/**
* Returns whether a particular element is in button scope.
*
* > The stack of open elements is said to have a particular element
* > in button scope when it has that element in the specific scope
* > consisting of the following element types:
* >
* > - All the element types listed above for the has an element in scope algorithm.
* > - button in the HTML namespace
*
* @since 6.4.0
* @since 6.7.0 Supports all required HTML elements.
*
* @see https://html.spec.whatwg.org/#has-an-element-in-button-scope
*
* @param string $tag_name Name of tag to check.
* @return bool Whether given element is in scope.
*/
public function has_element_in_button_scope( string $tag_name ): bool {
return $this->has_element_in_specific_scope(
$tag_name,
array(
'APPLET',
'BUTTON',
'CAPTION',
'HTML',
'TABLE',
'TD',
'TH',
'MARQUEE',
'OBJECT',
'TEMPLATE',
'math MI',
'math MO',
'math MN',
'math MS',
'math MTEXT',
'math ANNOTATION-XML',
'svg FOREIGNOBJECT',
'svg DESC',
'svg TITLE',
)
);
}
/**
* Returns whether a particular element is in table scope.
*
* > The stack of open elements is said to have a particular element
* > in table scope when it has that element in the specific scope
* > consisting of the following element types:
* >
* > - html in the HTML namespace
* > - table in the HTML namespace
* > - template in the HTML namespace
*
* @since 6.4.0
* @since 6.7.0 Full implementation.
*
* @see https://html.spec.whatwg.org/#has-an-element-in-table-scope
*
* @param string $tag_name Name of tag to check.
* @return bool Whether given element is in scope.
*/
public function has_element_in_table_scope( string $tag_name ): bool {
return $this->has_element_in_specific_scope(
$tag_name,
array(
'HTML',
'TABLE',
'TEMPLATE',
)
);
}
/**
* Returns whether a particular element is in select scope.
*
* This test differs from the others like it, in that its rules are inverted.
* Instead of arriving at a match when one of any tag in a termination group
* is reached, this one terminates if any other tag is reached.
*
* > The stack of open elements is said to have a particular element in select scope when it has
* > that element in the specific scope consisting of all element types except the following:
* > - optgroup in the HTML namespace
* > - option in the HTML namespace
*
* @since 6.4.0 Stub implementation (throws).
* @since 6.7.0 Full implementation.
*
* @see https://html.spec.whatwg.org/#has-an-element-in-select-scope
*
* @param string $tag_name Name of tag to check.
* @return bool Whether the given element is in SELECT scope.
*/
public function has_element_in_select_scope( string $tag_name ): bool {
foreach ( $this->walk_up() as $node ) {
if ( $node->node_name === $tag_name ) {
return true;
}
if (
'OPTION' !== $node->node_name &&
'OPTGROUP' !== $node->node_name
) {
return false;
}
}
return false;
}
/**
* Returns whether a P is in BUTTON scope.
*
* @since 6.4.0
*
* @see https://html.spec.whatwg.org/#has-an-element-in-button-scope
*
* @return bool Whether a P is in BUTTON scope.
*/
public function has_p_in_button_scope(): bool {
return $this->has_p_in_button_scope;
}
/**
* Pops a node off of the stack of open elements.
*
* @since 6.4.0
*
* @see https://html.spec.whatwg.org/#stack-of-open-elements
*
* @return bool Whether a node was popped off of the stack.
*/
public function pop(): bool {
$item = array_pop( $this->stack );
if ( null === $item ) {
return false;
}
$this->after_element_pop( $item );
return true;
}
/**
* Pops nodes off of the stack of open elements until an HTML tag with the given name has been popped.
*
* @since 6.4.0
*
* @see WP_HTML_Open_Elements::pop
*
* @param string $html_tag_name Name of tag that needs to be popped off of the stack of open elements.
* @return bool Whether a tag of the given name was found and popped off of the stack of open elements.
*/
public function pop_until( string $html_tag_name ): bool {
foreach ( $this->walk_up() as $item ) {
$this->pop();
if ( 'html' !== $item->namespace ) {
continue;
}
if (
'(internal: H1 through H6 - do not use)' === $html_tag_name &&
in_array( $item->node_name, array( 'H1', 'H2', 'H3', 'H4', 'H5', 'H6' ), true )
) {
return true;
}
if ( $html_tag_name === $item->node_name ) {
return true;
}
}
return false;
}
/**
* Pushes a node onto the stack of open elements.
*
* @since 6.4.0
*
* @see https://html.spec.whatwg.org/#stack-of-open-elements
*
* @param WP_HTML_Token $stack_item Item to add onto stack.
*/
public function push( WP_HTML_Token $stack_item ): void {
$this->stack[] = $stack_item;
$this->after_element_push( $stack_item );
}
/**
* Removes a specific node from the stack of open elements.
*
* @since 6.4.0
*
* @param WP_HTML_Token $token The node to remove from the stack of open elements.
* @return bool Whether the node was found and removed from the stack of open elements.
*/
public function remove_node( WP_HTML_Token $token ): bool {
foreach ( $this->walk_up() as $position_from_end => $item ) {
if ( $token->bookmark_name !== $item->bookmark_name ) {
continue;
}
$position_from_start = $this->count() - $position_from_end - 1;
array_splice( $this->stack, $position_from_start, 1 );
$this->after_element_pop( $item );
return true;
}
return false;
}
/**
* Steps through the stack of open elements, starting with the top element
* (added first) and walking downwards to the one added last.
*
* This generator function is designed to be used inside a "foreach" loop.
*
* Example:
*
* $html = 'We are here';
* foreach ( $stack->walk_down() as $node ) {
* echo "{$node->node_name} -> ";
* }
* > EM -> STRONG -> A ->
*
* To start with the most-recently added element and walk towards the top,
* see WP_HTML_Open_Elements::walk_up().
*
* @since 6.4.0
*/
public function walk_down() {
$count = count( $this->stack );
for ( $i = 0; $i < $count; $i++ ) {
yield $this->stack[ $i ];
}
}
/**
* Steps through the stack of open elements, starting with the bottom element
* (added last) and walking upwards to the one added first.
*
* This generator function is designed to be used inside a "foreach" loop.
*
* Example:
*
* $html = 'We are here';
* foreach ( $stack->walk_up() as $node ) {
* echo "{$node->node_name} -> ";
* }
* > A -> STRONG -> EM ->
*
* To start with the first added element and walk towards the bottom,
* see WP_HTML_Open_Elements::walk_down().
*
* @since 6.4.0
* @since 6.5.0 Accepts $above_this_node to start traversal above a given node, if it exists.
*
* @param WP_HTML_Token|null $above_this_node Optional. Start traversing above this node,
* if provided and if the node exists.
*/
public function walk_up( ?WP_HTML_Token $above_this_node = null ) {
$has_found_node = null === $above_this_node;
for ( $i = count( $this->stack ) - 1; $i >= 0; $i-- ) {
$node = $this->stack[ $i ];
if ( ! $has_found_node ) {
$has_found_node = $node === $above_this_node;
continue;
}
yield $node;
}
}
/*
* Internal helpers.
*/
/**
* Updates internal flags after adding an element.
*
* Certain conditions (such as "has_p_in_button_scope") are maintained here as
* flags that are only modified when adding and removing elements. This allows
* the HTML Processor to quickly check for these conditions instead of iterating
* over the open stack elements upon each new tag it encounters. These flags,
* however, need to be maintained as items are added and removed from the stack.
*
* @since 6.4.0
*
* @param WP_HTML_Token $item Element that was added to the stack of open elements.
*/
public function after_element_push( WP_HTML_Token $item ): void {
$namespaced_name = 'html' === $item->namespace
? $item->node_name
: "{$item->namespace} {$item->node_name}";
/*
* When adding support for new elements, expand this switch to trap
* cases where the precalculated value needs to change.
*/
switch ( $namespaced_name ) {
case 'APPLET':
case 'BUTTON':
case 'CAPTION':
case 'HTML':
case 'TABLE':
case 'TD':
case 'TH':
case 'MARQUEE':
case 'OBJECT':
case 'TEMPLATE':
case 'math MI':
case 'math MO':
case 'math MN':
case 'math MS':
case 'math MTEXT':
case 'math ANNOTATION-XML':
case 'svg FOREIGNOBJECT':
case 'svg DESC':
case 'svg TITLE':
$this->has_p_in_button_scope = false;
break;
case 'P':
$this->has_p_in_button_scope = true;
break;
}
if ( null !== $this->push_handler ) {
( $this->push_handler )( $item );
}
}
/**
* Updates internal flags after removing an element.
*
* Certain conditions (such as "has_p_in_button_scope") are maintained here as
* flags that are only modified when adding and removing elements. This allows
* the HTML Processor to quickly check for these conditions instead of iterating
* over the open stack elements upon each new tag it encounters. These flags,
* however, need to be maintained as items are added and removed from the stack.
*
* @since 6.4.0
*
* @param WP_HTML_Token $item Element that was removed from the stack of open elements.
*/
public function after_element_pop( WP_HTML_Token $item ): void {
/*
* When adding support for new elements, expand this switch to trap
* cases where the precalculated value needs to change.
*/
switch ( $item->node_name ) {
case 'APPLET':
case 'BUTTON':
case 'CAPTION':
case 'HTML':
case 'P':
case 'TABLE':
case 'TD':
case 'TH':
case 'MARQUEE':
case 'OBJECT':
case 'TEMPLATE':
case 'math MI':
case 'math MO':
case 'math MN':
case 'math MS':
case 'math MTEXT':
case 'math ANNOTATION-XML':
case 'svg FOREIGNOBJECT':
case 'svg DESC':
case 'svg TITLE':
$this->has_p_in_button_scope = $this->has_element_in_button_scope( 'P' );
break;
}
if ( null !== $this->pop_handler ) {
( $this->pop_handler )( $item );
}
}
/**
* Clear the stack back to a table context.
*
* > When the steps above require the UA to clear the stack back to a table context, it means
* > that the UA must, while the current node is not a table, template, or html element, pop
* > elements from the stack of open elements.
*
* @see https://html.spec.whatwg.org/multipage/parsing.html#clear-the-stack-back-to-a-table-context
*
* @since 6.7.0
*/
public function clear_to_table_context(): void {
foreach ( $this->walk_up() as $item ) {
if (
'TABLE' === $item->node_name ||
'TEMPLATE' === $item->node_name ||
'HTML' === $item->node_name
) {
break;
}
$this->pop();
}
}
/**
* Clear the stack back to a table body context.
*
* > When the steps above require the UA to clear the stack back to a table body context, it
* > means that the UA must, while the current node is not a tbody, tfoot, thead, template, or
* > html element, pop elements from the stack of open elements.
*
* @see https://html.spec.whatwg.org/multipage/parsing.html#clear-the-stack-back-to-a-table-body-context
*
* @since 6.7.0
*/
public function clear_to_table_body_context(): void {
foreach ( $this->walk_up() as $item ) {
if (
'TBODY' === $item->node_name ||
'TFOOT' === $item->node_name ||
'THEAD' === $item->node_name ||
'TEMPLATE' === $item->node_name ||
'HTML' === $item->node_name
) {
break;
}
$this->pop();
}
}
/**
* Clear the stack back to a table row context.
*
* > When the steps above require the UA to clear the stack back to a table row context, it
* > means that the UA must, while the current node is not a tr, template, or html element, pop
* > elements from the stack of open elements.
*
* @see https://html.spec.whatwg.org/multipage/parsing.html#clear-the-stack-back-to-a-table-row-context
*
* @since 6.7.0
*/
public function clear_to_table_row_context(): void {
foreach ( $this->walk_up() as $item ) {
if (
'TR' === $item->node_name ||
'TEMPLATE' === $item->node_name ||
'HTML' === $item->node_name
) {
break;
}
$this->pop();
}
}
/**
* Wakeup magic method.
*
* @since 6.6.0
*/
public function __wakeup() {
throw new \LogicException( __CLASS__ . ' should never be unserialized' );
}
}
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