WP_HTML_Processor::step_initial(): bool

Source

private function step_initial(): bool {
	$token_name = $this->get_token_name();
	$token_type = $this->get_token_type();
	$op_sigil   = '#tag' === $token_type ? ( parent::is_tag_closer() ? '-' : '+' ) : '';
	$op         = "{$op_sigil}{$token_name}";

	switch ( $op ) {
		/*
		 * > A character token that is one of U+0009 CHARACTER TABULATION,
		 * > U+000A LINE FEED (LF), U+000C FORM FEED (FF),
		 * > U+000D CARRIAGE RETURN (CR), or U+0020 SPACE
		 *
		 * Parse error: ignore the token.
		 */
		case '#text':
			if ( parent::TEXT_IS_WHITESPACE === $this->text_node_classification ) {
				return $this->step();
			}
			goto initial_anything_else;
			break;

		/*
		 * > A comment token
		 */
		case '#comment':
		case '#funky-comment':
		case '#presumptuous-tag':
			$this->insert_html_element( $this->state->current_token );
			return true;

		/*
		 * > A DOCTYPE token
		 */
		case 'html':
			$doctype = $this->get_doctype_info();
			if ( null !== $doctype && 'quirks' === $doctype->indicated_compatibility_mode ) {
				$this->compat_mode = WP_HTML_Tag_Processor::QUIRKS_MODE;
			}

			/*
			 * > Then, switch the insertion mode to "before html".
			 */
			$this->state->insertion_mode = WP_HTML_Processor_State::INSERTION_MODE_BEFORE_HTML;
			$this->insert_html_element( $this->state->current_token );
			return true;
	}

	/*
	 * > Anything else
	 */
	initial_anything_else:
	$this->compat_mode           = WP_HTML_Tag_Processor::QUIRKS_MODE;
	$this->state->insertion_mode = WP_HTML_Processor_State::INSERTION_MODE_BEFORE_HTML;
	return $this->step( self::REPROCESS_CURRENT_NODE );
}

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