public void DeregisterSubItem(RegexBalanceGroupItem <T> item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
if (item.___balanceGroup == this)
{
if (this.openItem == item || this.closeItem == item)
{
throw new InvalidOperationException("指定平衡组项已在此平衡组中注册，且不为子项。");
}
else
{
this.DeregisterItem(item);
this.subItems.Remove(item);
}
}
else if (item.___balanceGroup == null)
{
throw new InvalidOperationException("指定平衡组项未注册为任何一个平衡组的项。");
}
else
{
throw new InvalidOperationException("指定平衡组项已注册为另一个平衡组的项。");
}
}
public void RegisterCloseItem(RegexBalanceGroupItem <T> item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
if (item.___balanceGroup == this)
{
if (this.closeItem == item)
{
return;
}
else
{
throw new InvalidOperationException("指定平衡组项已在此平衡组中注册，且不为结束项。");
}
}
else if (item.___balanceGroup == null)
{
this.closeItem = item;
this.RegisterItem(item);
}
else
{
throw new InvalidOperationException("指定平衡组项已注册为另一个平衡组的项。");
}
}
public RegexBalanceGroup(RegexObject <T> regex, RegexBalanceGroupItem <T> openItem, IEnumerable <RegexBalanceGroupItem <T> > subItems, RegexBalanceGroupItem <T> closeItem, object id = null) : base(regex, id, true)
{
if (openItem == null)
{
throw new ArgumentNullException(nameof(openItem));
}
if (subItems == null)
{
throw new ArgumentNullException(nameof(subItems));
}
if (closeItem == null)
{
throw new ArgumentNullException(nameof(closeItem));
}
this.RegisterOpenItem(openItem);
foreach (var subItem in subItems)
{
this.RegisterSubItem(subItem);
}
this.RegisterCloseItem(closeItem);
}
protected internal void DeregisterItem(RegexBalanceGroupItem <T> item)
{
item.___balanceGroup = null;
}
protected internal void RegisterItem(RegexBalanceGroupItem <T> item)
{
item.___balanceGroup = this;
}