private ComponentTag nextTag()

in wicket-core/src/main/java/org/apache/wicket/DequeueContext.java [140:219]
74 lines of code
23 McCabe index (conditional complexity)

	private ComponentTag nextTag()
	{
		if (skipFirst && first == null)
		{
			for (; index < markup.size(); index++)
			{
				MarkupElement element = markup.get(index);
				if (element instanceof ComponentTag)
				{
					first = (ComponentTag)element;
					index++;
					break;
				}
			}
		}

		for (; index < markup.size(); index++)
		{
			MarkupElement element = markup.get(index);
			if (element instanceof ComponentTag)
			{
				ComponentTag tag = (ComponentTag)element;

				if (tag.isOpen() || tag.isOpenClose())
				{
					DequeueTagAction action = canDequeueTag(tag);
					switch (action)
					{
						case IGNORE :
							continue;
						case DEQUEUE :
							index++;
							return tag;
						case SKIP : // skip to close tag
							boolean found = false;
							for (; index < markup.size(); index++)
							{
								if ((markup.get(index) instanceof ComponentTag)
									&& markup.get(index).closes(tag))
								{
									found = true;
									break;
								}
							}
							if (!found)
							{
								throw new IllegalStateException(String.format(
									"Could not find close tag for tag '%s' in markup: %s ", tag,
									markup));
							}

					}
				}
				else
				{
					// closed tag
					ComponentTag open = tag.isClose() ? tag.getOpenTag() : tag;

					if (skipFirst && first != null && open == first)
					{
						continue;
					}

					switch (canDequeueTag(open))
					{
						case DEQUEUE :
							index++;
							return tag;
						case IGNORE :
							continue;
						case SKIP :
							throw new IllegalStateException(String.format(
								"Should not see closed tag of skipped open tag '%s' in markup:%s",
								tag, markup));
					}
				}
			}
		}
		return null;
	}