/// <summary>
/// Dodaje novi ili prvi clan u kolekciju - a ako je kolekcija null onda je instancira
/// </summary>
/// <param name="col"></param>
/// <param name="newItem"></param>
/// <returns></returns>
public static oneOrMore <T> operator +(oneOrMore <T> col, T newItem)
{
if (col == null)
{
col = new oneOrMore <T>();
}
if (!col.Contains(newItem))
{
col.Add(newItem);
}
return(col);
}
/// <summary>
/// Sklanja item iz operatora
/// </summary>
/// <param name="col"></param>
/// <param name="newItem"></param>
/// <returns></returns>
public static oneOrMore <T> operator -(oneOrMore <T> col, T newItem)
{
if (col == null)
{
col = new oneOrMore <T>();
}
else
{
col.Remove(newItem);
}
return(col);
}
/// <summary>
/// Oduzima sve clanove iz prosledjene kolekcije
/// </summary>
/// <param name="col"></param>
/// <param name="newItem"></param>
/// <returns></returns>
public static oneOrMore <T> operator -(oneOrMore <T> col, IEnumerable <T> newItem)
{
if (col == null)
{
col = new oneOrMore <T>();
}
foreach (T t in newItem)
{
if (col.Contains(t))
{
col.Remove(t);
}
}
return(col);
}