code: private void addPriorityInfo(BannerComponents bannerComponents, int index) {
      Integer abbreviationPriority = bannerComponents.abbreviationPriority();
      if (abbreviations.get(abbreviationPriority) == null) {
        abbreviations.put(abbreviationPriority, new ArrayList<Integer>());
      }
      abbreviations.get(abbreviationPriority).add(index);
    }
docs: Adds the given BannerComponents object to the list of abbreviations so that when the list of
  BannerComponentNodes is completed, text can be abbreviated properly to fit the specified
  TextView.
  
  @param bannerComponents object holding the abbreviation information
  @param index in the list of BannerComponentNodes