code: @Nullable
    public static String [] getRectValues (@Nullable final String sCSSValue)
    {
      String [] ret = null;
      final String sRealValue = StringHelper.trim (sCSSValue);
      if (StringHelper.hasText (sRealValue))
      {
        ret = RegExHelper.getAllMatchingGroupValues (PATTERN_CURRENT_SYNTAX, sRealValue);
        if (ret == null)
          ret = RegExHelper.getAllMatchingGroupValues (PATTERN_OLD_SYNTAX, sRealValue);
      }
      return ret;
    }
docs: Get all the values from within a CSS rectangle definition.
  
  @param sCSSValue
  The CSS values to check. May be <code>null</code>.
  @return <code>null</code> if the passed String is not a CSS rectangle. An
  array with 4 Strings if the passed value is a CSS rectangle.