public Document Parse()
{
var groups = new Stack <Group>();
var infoGroup = default(Group);
var listStyles = new Dictionary <int, ListStyle>();
foreach (var token in Tokens())
{
if (token is Group group)
{
if (groups.Count < 1)
{
groups.Push(_document);
}
else
{
groups.Peek().Contents.Add(group);
groups.Push(group);
}
}
else if (token is GroupEnd)
{
var lastGroup = groups.Count > 0 ? groups.Pop() : default(Group);
var dest = lastGroup?.Destination;
if (dest is ListDefinition)
{
var style = new ListStyle(lastGroup);
listStyles[style.Id] = style;
}
else if (dest is ListOverride)
{
var listId = lastGroup.Contents.OfType <ListId>().FirstOrDefault()?.Value;
var refId = lastGroup.Contents.OfType <ListStyleId>().FirstOrDefault()?.Value;
if (listId.HasValue && refId.HasValue && listStyles.TryGetValue(listId.Value, out var style))
{
_document.ListStyles[refId.Value] = new ListStyleReference(refId.Value, style);
}
}
}
else
{
groups.Peek().Contents.Add(token);
if (token is Info)
{
infoGroup = groups.Peek();
}
}
}
if (infoGroup != null)
{
ParseInfo(_document, infoGroup);
}
return(_document);
}
internal ListStyleReference(int id, ListStyle style)
{
Id = id;
Style = style;
}