Item parseAddCommand(string[] args, ref int idx)
{
if (args.Length <= idx)
{
Console.WriteLine("Expected description.");
displayAddCommandInstructions();
return(null);
}
var description = args[idx++];
var newId = ItemGroup.allocateId();
var item = new Item(newId, description);
addItem(item);
this.ItemGroupFile.save();
return(item);
}
// If x is a number, finds the task with that id
// returns null if it doesn't exist.
// If x is a string makes a new task with that description
Item createOrGetItemFromIdOrString(string x)
{
Item newItem;
// Extract an id or description
UInt32 itemId;
if (UInt32.TryParse(x, out itemId))
{
// It's a task id
newItem = ItemGroup.Items.getItemById(itemId);
// Assume newItem isn't null because we checked above
}
else
{
// Createa a new item based on description and add it to the item group
newItem = new Item(ItemGroup.allocateId(), x);
addItem(newItem);
}
return(newItem);
}