private NoteNode GetNodeContentFromStream(StreamReader stream, NoteNode node)
{
var builder = new StringBuilder();
var count = 0;
while (!stream.EndOfStream)
{
//read the tag until ">" then read in content until end tag "</>" or "<" and recruse
var newchar = stream.Read();
if (newchar != '<')
{
builder.Append((char)newchar);
}
else
{
if (stream.Peek() == '/')
{
stream.Read();
if (stream.Peek() == '>')
{
stream.Read();
node.Content = builder.ToString();
return(node);
}
throw new Exception("Bad Formed tag");
}
builder.Append("{" + count + "}");
count++;
ReadTag(stream, node);
}
}
return(node);
}
/// <summary>
/// Initializes a NoteTree given a root node.
/// </summary>
/// <param name="root">The NoteNode rooting the tree.</param>
public NoteTree(NoteNode root)
{
if (null == root)
{
throw new ArgumentNullException("root");
}
_root = root;
}
public NoteNode(string tag, string content, NoteNode parent)
{
Tag = tag;
Content = content;
Parent = parent;
Children = new List <NoteNode>();
if (parent != null)
{
parent.Children.Add(this);
}
}
private IEnumerable <string> RecurseGetTags(List <string> list, NoteNode node)
{
if (!list.Contains(node.Tag))
{
list.Add(node.Tag);
}
foreach (var noteNode in node.Children)
{
RecurseGetTags(list, noteNode);
}
return(list);
}
private IEnumerable <NoteNode> RecurseGetNotesByTag(List <NoteNode> list, NoteNode node)
{
if (!list.Contains(node))
{
list.Add(node);
}
foreach (var noteNode in node.Children)
{
RecurseGetNotesByTag(list, noteNode);
}
return(list);
}
private bool RecurseSearchTag(NoteNode node, string tag)
{
if (node.Tag == tag)
{
return(true);
}
foreach (var noteNode in node.Children)
{
if (RecurseSearchTag(noteNode, tag))
{
return(true);
}
}
return(false);
}
private static NoteNode GetNodeTagFromStream(StreamReader stream, NoteNode parent)
{
var node = new NoteNode(null, null, parent);
var builder = new StringBuilder();
while (!stream.EndOfStream)
{
var newChar = stream.Read();
if (newChar != '>')
{
builder.Append((char)newChar);
}
else
{
break;
}
}
node.Tag = builder.ToString();
return(node);
}
/// <summary>
/// Parses the file contents and provides a tree structure of the input file.
/// </summary>
/// <returns>A <see cref="NoteTree" /> containg the contents of the ntf file.</returns>
public NoteTree GetTree()
{
var stream = new MemoryStream();
NoteNode notes = null;
using (var writer = new StreamWriter(stream))
{
writer.AutoFlush = true;
writer.Write(_noteContents);
stream.Position = 0;
using (var reader = new StreamReader(stream))
{
//advance stream to beginning tag
while (reader.Read() != '<' && !reader.EndOfStream)
{
;
}
notes = ReadTag(reader, null);
}
}
return(new NoteTree(notes));
}
private NoteNode ReadTag(StreamReader stream, NoteNode parent)
{
var node = GetNodeTagFromStream(stream, parent);
return(GetNodeContentFromStream(stream, node));
}
private Dictionary <string, int> RecurseGetTags(Dictionary <string, int> list, NoteNode node)
{
if (!list.ContainsKey(node.Tag))
{
list.Add(node.Tag, 1);
}
else
{
list[node.Tag]++;
}
foreach (var noteNode in node.Children)
{
RecurseGetTags(list, noteNode);
}
return(list);
}
