bp_core_load_buddypress_textdomain()

function bp_core_load_buddypress_textdomain() {
	$domain = 'buddyboss';

	/**
	 * Filters the locale to be loaded for the language files.
	 *
	 * @since BuddyPress 1.0.2
	 *
	 * @param string $value Current locale for the install.
	 */
	$mofile_custom = sprintf( '%s-%s.mo', $domain, apply_filters( 'buddypress_locale', get_locale() ) );

	/**
	 * Filters the locations to load language files from.
	 *
	 * @since BuddyPress 2.2.0
	 *
	 * @param array $value Array of directories to check for language files in.
	 */
	$locations = apply_filters( 'buddypress_locale_locations', array(
		trailingslashit( WP_LANG_DIR . '/' . $domain  ),
		trailingslashit( WP_LANG_DIR ),
	) );

	// Try custom locations in WP_LANG_DIR.
	foreach ( $locations as $location ) {
		if ( load_textdomain( 'buddyboss', $location . $mofile_custom ) ) {
			return true;
		}
	}

	// Default to WP and glotpress.
	return load_plugin_textdomain( $domain );
}