WP_HTML_Processor::step_after_frameset(): bool

4581	private function step_after_frameset(): bool {4582		$tag_name   = $this->get_token_name();4583		$token_type = $this->get_token_type();4584		$op_sigil   = '#tag' === $token_type ? ( $this->is_tag_closer() ? '-' : '+' ) : '';4585		$op         = "{$op_sigil}{$tag_name}";4586 4587		switch ( $op ) {4588			/*4589			 * > A character token that is one of U+0009 CHARACTER TABULATION, U+000A LINE FEED (LF),4590			 * >   U+000C FORM FEED (FF), U+000D CARRIAGE RETURN (CR), or U+0020 SPACE4591			 * >4592			 * > Insert the character.4593			 *4594			 * This algorithm effectively strips non-whitespace characters from text and inserts4595			 * them under HTML. This is not supported at this time.4596			 */4597			case '#text':4598				if ( parent::TEXT_IS_WHITESPACE === $this->text_node_classification ) {4599					return $this->step_in_body();4600				}4601				$this->bail( 'Non-whitespace characters cannot be handled in after frameset' );4602				break;4603 4604			/*4605			 * > A comment token4606			 * > A processing instruction token4607			 */4608			case '#comment':4609			case '#funky-comment':4610			case '#presumptuous-tag':4611			case '#processing-instruction':4612				$this->insert_html_element( $this->state->current_token );4613				return true;4614 4615			/*4616			 * > A DOCTYPE token4617			 */4618			case 'html':4619				// Parse error: ignore the token.4620				return $this->step();4621 4622			/*4623			 * > A start tag whose tag name is "html"4624			 */4625			case '+HTML':4626				return $this->step_in_body();4627 4628			/*4629			 * > An end tag whose tag name is "html"4630			 */4631			case '-HTML':4632				$this->state->insertion_mode = WP_HTML_Processor_State::INSERTION_MODE_AFTER_AFTER_FRAMESET;4633				/*4634				 * The HTML element is not removed from the stack of open elements.4635				 * Only internal state has changed, this does not qualify as a "step"4636				 * in terms of advancing through the document to another token.4637				 * Nothing has been pushed or popped.4638				 * Proceed to parse the next item.4639				 */4640				return $this->step();4641 4642			/*4643			 * > A start tag whose tag name is "noframes"4644			 */4645			case '+NOFRAMES':4646				return $this->step_in_head();4647		}4648 4649		// Parse error: ignore the token.4650		return $this->step();4651	}