public static List removeDuplicates()

in src/prettify/parser/Util.java [222:261]
32 lines of code
10 McCabe index (conditional complexity)

  public static List<Object> removeDuplicates(List<Object> decorations, String source) {
    if (decorations == null) {
      throw new NullPointerException("argument 'decorations' cannot be null");
    }
    if (source == null) {
      throw new NullPointerException("argument 'source' cannot be null");
    }
    if ((decorations.size() & 0x1) != 0) {
      throw new IllegalArgumentException("the size of argument 'decorations' should be a multiple of 2");
    }

    List<Object> returnList = new ArrayList<Object>();

    // use TreeMap to remove entrys with same pos
    Map<Integer, Object> orderedMap = new TreeMap<Integer, Object>();
    for (int i = 0, iEnd = decorations.size(); i < iEnd; i += 2) {
      orderedMap.put((Integer) decorations.get(i), decorations.get(i + 1));
    }

    // remove adjacent style
    String previousStyle = null;
    for (Integer pos : orderedMap.keySet()) {
      String style = (String) orderedMap.get(pos);
      if (previousStyle != null && previousStyle.equals(style)) {
        continue;
      }
      returnList.add(pos);
      returnList.add(style);
      previousStyle = style;
    }

    // remove last zero length tag
    int returnListSize = returnList.size();
    if (returnListSize >= 4 && returnList.get(returnListSize - 2).equals(source.length())) {
      returnList.remove(returnListSize - 2);
      returnList.remove(returnListSize - 2);
    }

    return returnList;
  }