private void Open_Click(object sender, RoutedEventArgs e)
{
if (Data.DataContext == null)
{
RootNode = ReadSFS(Filename.Text);
PopulateGrid();
Filename.IsEnabled = false;
BrowseButton.IsEnabled = false;
DeleteButton.IsEnabled = true;
SaveButton.IsEnabled = true;
((Button)sender).Content = "Unload";
}
else
{
Data.DataContext = null;
RootNode = null;
Filename.IsEnabled = true;
BrowseButton.IsEnabled = true;
DeleteButton.IsEnabled = false;
SaveButton.IsEnabled = false;
((Button)sender).Content = "Load";
}
}
private void WriteSFS(Stream output, SFSNode current, int indent)
{
Indent(output, indent);
output.Write(current.NodeName);
output.Write("\r\n");
Indent(output, indent);
output.Write("{\r\n");
foreach (var pair in current.Attributes)
{
Indent(output, indent + 1);
output.Write(pair.Key);
output.Write(" = ");
output.Write(pair.Value);
output.Write("\r\n");
}
foreach (SFSNode child in current.Children)
{
WriteSFS(output, child, indent + 1);
}
Indent(output, indent);
output.Write("}\r\n");
}
private SFSNode ReadSFS(string inputSfs)
{
string inStr = string.Empty;
using (FileStream input = new FileStream(inputSfs, FileMode.Open, FileAccess.Read, FileShare.Read))
{
System.Diagnostics.Debug.Assert(input.Length <= (long)int.MaxValue);
byte[] bytes = new byte[input.Length];
input.Read(bytes, 0, (int)input.Length);
inStr = Encoding.UTF8.GetString(bytes).Replace("\r", string.Empty);
}
SFSNode root = null;
Stack<SFSNode> stack = new Stack<SFSNode>();
string[] lines = inStr.Split('\n');
string nodeName = null;
foreach (string line in lines)
{
if (line.EndsWith("{"))
{
SFSNode newNode = new SFSNode(nodeName);
if (root == null)
{
root = newNode;
}
else
{
stack.Peek().Children.Add(newNode);
}
stack.Push(newNode);
}
else if (line.EndsWith("}"))
{
stack.Pop();
}
else if (line.Contains(" = "))
{
string[] parts = line.Split(new string[] { " = " }, StringSplitOptions.None);
stack.Peek().Attributes[parts[0].Trim()] = parts[1];
}
else
{
nodeName = line.Trim();
}
}
return root;
}