WP_Block::get_block_bindings_processor( $block_content )

Source

private static function get_block_bindings_processor( string $block_content ) {
	$internal_processor_class = new class('', WP_HTML_Processor::CONSTRUCTOR_UNLOCK_CODE) extends WP_HTML_Processor {
		/**
		 * Replace the rich text content between a tag opener and matching closer.
		 *
		 * When stopped on a tag opener, replace the content enclosed by it and its
		 * matching closer with the provided rich text.
		 *
		 * @param string $rich_text The rich text to replace the original content with.
		 * @return bool True on success.
		 */
		public function replace_rich_text( $rich_text ) {
			if ( $this->is_tag_closer() || ! $this->expects_closer() ) {
				return false;
			}

			$depth    = $this->get_current_depth();
			$tag_name = $this->get_tag();

			$this->set_bookmark( '_wp_block_bindings' );
			// The bookmark names are prefixed with `_` so the key below has an extra `_`.
			$tag_opener = $this->bookmarks['__wp_block_bindings'];
			$start      = $tag_opener->start + $tag_opener->length;

			// Find matching tag closer.
			while ( $this->next_token() && $this->get_current_depth() >= $depth ) {
			}

			if ( ! $this->is_tag_closer() || $tag_name !== $this->get_tag() ) {
				return false;
			}

			$this->set_bookmark( '_wp_block_bindings' );
			$tag_closer = $this->bookmarks['__wp_block_bindings'];
			$end        = $tag_closer->start;

			$this->lexical_updates[] = new WP_HTML_Text_Replacement(
				$start,
				$end - $start,
				$rich_text
			);

			return true;
		}
	};

	return $internal_processor_class::create_fragment( $block_content );
}

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