/**
	 * The field builder switch
	 * 
	 * @since  3.0.9
	 */
	protected static $builder = false;

	/**
	 * Making field type name safe
	 *
	 * @param   String      $string     The you would like to make safe
	 * @param   String      $option    The option for the component.
	 *
	 * @returns string on success
	 * 
	 * @since  3.0.9
	 */
	public static function safe($string, $option = null)
	{
		// get global value
		if (self::$builder === false)
		{
			self::$builder = Helper::getParams($option)->get('type_name_builder', 1);
		}

		// use the new convention
		if (2 == self::$builder)
		{
			// 0nly continue if we have a string
			if (StringHelper::check($string))
			{
				// check that the first character is not a number
				if (is_numeric(substr($string, 0, 1)))
				{
					$string = StringHelper::numbers($string);
				}

				// Transliterate string
				$string = StringHelper::transliterate($string);

				// remove all and keep only characters and numbers and point (TODO just one point)
				$string = trim(preg_replace("/[^A-Za-z0-9_\.]/", '', (string) $string));

				// best is to return lower (for all string equality in compiler)
				return strtolower($string);
			}
			// not a string
			return '';
		}

		// use the default (original behaviour/convention)
		return StringHelper::safe($string);
	}