public VdfNode LoadString(string filename, string input)
{
this.input = input;
currentFile = filename;
line = 1;
col = 1;
var rootNode = new VdfNode();
rootNode.Children = new List <VdfNode>();
var tokenEnumerator = Tokenise().GetEnumerator();
while (tokenEnumerator.MoveNext())
{
var tok = tokenEnumerator.Current;
if (tok == null)
{
throw new Exception("Enumerator behaving nonsensically");
}
if (tok.Type == TokenType.Unquoted && (tok.Payload == "#include" || tok.Payload == "#base"))
{
Throw("VDF inclusions are unimplemented");
}
else
{
rootNode.Children.Add(LoadStringNode(tokenEnumerator));
}
}
return(rootNode);
}
VdfNode LoadStringNode(IEnumerator <Token> tokenEnumerator)
{
var node = new VdfNode();
if (tokenEnumerator.Current.Type == TokenType.Conditional)
{
node.Condition = tokenEnumerator.Current.Payload.TrimStart('[').TrimEnd(']');
if (!tokenEnumerator.MoveNext())
{
Throw("Unexpected EOF after conditional");
}
}
if (tokenEnumerator.Current.Type != TokenType.Quoted && tokenEnumerator.Current.Type != TokenType.Unquoted)
{
Throw("Expected a key");
}
node.Name = tokenEnumerator.Current.Payload;
if (!tokenEnumerator.MoveNext())
{
Throw("Unexpected EOF after key");
}
if (tokenEnumerator.Current.Type == TokenType.Quoted || tokenEnumerator.Current.Type == TokenType.Unquoted)
{
node.Value = tokenEnumerator.Current.Payload;
}
else if (tokenEnumerator.Current.Type == TokenType.LeftBrace)
{
while (true)
{
if (!tokenEnumerator.MoveNext())
{
Throw("Unexpected EOF inside section");
}
else if (tokenEnumerator.Current.Type == TokenType.RightBrace)
{
return(node);
}
else
{
node.Children.Add(LoadStringNode(tokenEnumerator));
}
}
}
else
{
Throw("Unexpected token type");
}
return(node);
}