code: function inPosition(index, items) {
      for (var i = 0; i < items.length; i++) {
          var item = items[i];
          if (index >= item.start && index <= item.end) return item;
      }
      return false;
  }
docs: Finds if the index is inside one of the items
  Items should be in the same format as returned from util.findPositions
  
  @param {Number} index The index to check
  @param {Array<{start: Number, end: Number}>} items The items to search
  @returns {*} The start/end position if index is inside an item, else false