code: public static String findEscapedSpaceWordCloseToEnd(String text) {
          int index;
          String originalText = text;
          while ((index = text.lastIndexOf(SPACE)) > -1) {
              if (index > 0 && text.charAt(index - 1) == BACK_SLASH) {
                  text = text.substring(0, index - 1);
              }
              else
                  return originalText.substring(index + 1);
          }
          return originalText;
      }
docs: Search backwards for a non-escaped space and only return work containing non-escaped space
  
  @param text text
  @return text with only non-escaped space