//// _nodes_string returns a string for a series of nodes, and the caller
//// needs to supply the open and close parens that bracket the series.
////
private string NodesString(ParsedNode nodes)
{
var res = "";
while (nodes.Next != null)
{
// Get one node's string with a leading newline if it is not the
// first.
res += nodes.NodeString(res != "");
if (nodes.Branches != null)
{
foreach (var n in nodes.Branches)
{
res = res + "\n(" + this.NodesString(n) + ")";
}
return(res);
}
nodes = nodes.Next;
}
res += nodes.NodeString(res != ""); // Test res, could be single node branch.
return(res);
}
} // ParseNodes
//// _parse_node returns a ParseNode with its properties filled in.
////
private static ParsedNode ParseNode(Lexer lexer)
{
var node = new ParsedNode();
// Loop properties ...
while (lexer.HasData())
{
var id = lexer.GetPropertyId();
if (id == null)
{
// Expected to return from here due to no properties or syntax at end of properties.
return(node);
}
if (node.Properties.ContainsKey(id))
{
throw new Exception(string.Format("Encountered ID, {0}, twice for node -- file location {1}.",
id, lexer.Location));
}
lexer.ScanFor("[", "Expected property value");
var i = -1;
var values = new List <string>();
node.Properties[id] = values;
// Loop values for one property
while (lexer.HasData())
{
// C and GC properties allow newline sequences in value.
values.Add(lexer.GetPropertyValue(id == "C" || id == "GC"));
i = lexer.PeekFor("[").Item1;
if (i == -1)
{
break; // no new values
}
lexer.Location = i;
}
}
throw new FileFormatException("Unexpectedly hit EOF!");
} // ParseNode
public ParsedGame()
{
// nodes is the only public member.
this.Nodes = null;
}