public static int GetHeadingLevel(this Block block)
{
ContainerBlock parent = block.Parent;
if (parent != null)
{
int index = parent.IndexOf(block);
for (int i = index; i > -1; i--)
{
if (parent[i] is HeadingBlock headingBlock)
{
return(headingBlock.Level);
}
}
}
if (block is ContainerBlock containerBlock)
{
int level = 7;
foreach (var child in containerBlock)
{
if (child is HeadingBlock headingBlock)
{
if (headingBlock.Level < level)
{
level = headingBlock.Level;
}
}
}
return(level == 7 ? 0 : level);
}
return(0);
}
private static DefinitionList GetCurrentDefinitionList(ParagraphBlock paragraphBlock, ContainerBlock previousParent)
{
var index = previousParent.IndexOf(paragraphBlock) - 1;
if (index < 0)
{
return(null);
}
var lastBlock = previousParent[index];
if (lastBlock is BlankLineBlock)
{
lastBlock = previousParent[index - 1];
previousParent.RemoveAt(index);
}
return(lastBlock as DefinitionList);
}
/// <summary>
/// Closes a <typeparamref name="TProxy"/>.
/// </summary>
/// <param name="blockProcessor">The <see cref="BlockProcessor"/> processing the <typeparamref name="TProxy"/> to close. Never <c>null</c>.</param>
/// <param name="block">The <typeparamref name="TProxy"/> to close. Never <c>null</c>.</param>
/// <returns>False if the block should be discarded, true otherwise.</returns>
protected sealed override bool CloseBlock(BlockProcessor blockProcessor, TProxy block)
{
TMain proxyReplacement = CloseProxy(blockProcessor, block);
if (proxyReplacement == null)
{
return(false);
}
ContainerBlock parent = block.Parent;
// TODO inefficient
int index = parent.IndexOf(block);
parent.RemoveAt(index);
parent.Insert(index, proxyReplacement);
return(true);
}