r profile feeds
	}

	// No feed so continue on
	return $query_vars;
}

/** Templates ******************************************************************/

/**
 * Used to guess if page exists at requested path
 *
 * @since 2.0.0 bbPress (r3304)
 *
 * @param string $path
 * @return mixed False if no page, Page object if true
 */
function bbp_get_page_by_path( $path = '' ) {

	// Default to false
	$retval = false;

	// Path is not empty
	if ( ! empty( $path ) ) {

		// Pretty permalinks are on so path might exist
		if ( get_option( 'permalink_structure' ) ) {
			$retval = get_page_by_path( $path );
		}
	}

	// Filter & return
	return apply_filters( 'bbp_get_page_by_path', $retval, $path );
}

/**
 * Sets the 404 status.
 *
 * Used primarily with topics/replies inside hidden forums.
 *
 * @since 2.0.0 bbPress (r3051)
 * @since 2.6.0 bbPress (r6583) Use status_header() & nocache_headers()
 *
 * @param WP_Query $query  The query being checked
 *
 * @return bool Always returns true
 */
function bbp_set_404( $query = null ) {

	// Global fallback
	if ( empty( $query ) ) {
		$query = bbp_get_wp_query();
	}

	// Setup environment
	$query->set_404();

	// Setup request
	status_header( 404 );
	nocache_headers();
}

/**
 * Sets the 200 status header.
 *
 * @since 2.6.0 bbPress (r6583)
 */
function bbp_set_200() {
	status_header( 200 );
}

/**
 * Maybe handle the default 404 handling for some bbPress conditions
 *
 * Some conditions (like private/hidden forums and edits) have their own checks
 * on `bbp_template_redirect` and are not currently 404s.
 *
 * @since 2.6.0 bbPress (r6555)
 *
 * @param bool $override Whether to override the default handler
 * @param WP_Query $wp_query The posts query being referenced
 *
 * @return bool False to leave alone, true to override
 */
function bbp_pre_handle_404( $override = false, $wp_query = false ) {

	// Handle a bbPress 404 condition
	if ( isset( $wp_query->bbp_is_404 ) ) {

		// Either force a 404 when 200, or a 200 when 404
		$override = ( true === $wp_query->bbp_is_404 )
			? bbp_set_404( $wp_query )
			: bbp_set_200();
	}

	// Return, maybe overridden
	return $override;
}

/**
 * Maybe pre-assign the posts that are returned from a WP_Query.
 *
 * This effectively short-circuits the default query for posts, which is
 * currently only used to avoid calling the main query when it's not necessary.
 *
 * @since 2.6.0 bbPress (r6580)
 *
 * @param mixed $posts Default null. Array of posts (possibly empty)
 * @param WP_Query $wp_query
 *
 * @return mixed Null if no override. Array if overridden.
 */
function bbp_posts_pre_query( $posts = null, $wp_query = false ) {

	// Custom 404 handler is set, so set posts to empty array to avoid 2 queries
	if ( ! empty( $wp_query->bbp_is_404 ) ) {
		$posts = array();
	}

	// Return, maybe overridden
	return $posts;
}

/**
 * Get scheme for a URL based on is_ssl() results.
 *
 * @since 2.6.0 bbPress (r6759)
 *
 * @return string https:// if is_ssl(), otherwise http://
 */
function bbp_get_url_scheme() {
	return is_ssl()
		? 'https://'
		: 'http://';
}

/** Titles ********************************************************************/

/**
 * Is a title longer that the maximum title length?
 *
 * Uses mb_strlen() in `8bit` mode to treat strings as raw. This matches the
 * behavior present in Comments, PHPMailer, RandomCompat, and others.
 *
 * @since 2.6.0 bbPress (r6783)
 *
 * @param string $title
 * @return bool
 */
function bbp_is_title_too_long( $title = '' ) {
	$max    = bbp_get_title_max_length();
	$len    = mb_strlen( $title, '8bit' );
	$result = ( $len > $max );

	// Filter & return
	return (bool) apply_filters( 'bbp_is_title_too_long', $result, $title, $max, $len );
}