public static Element GetRequiredElement(Scope sc, string index, Element element = null)
{
Element el = sc[index];
if (el == null)
{
throw (new Exception());
}
return el;
}
public Parser(List<Token> tokens, bool isBinary)
{
this.tokens = tokens;
last = -1;
current = -1;
cursor = -1;
this.isBinary = isBinary;
root = new Scope(this, true);
}
public Element(Token keyToken, Parser parser)
{
this.keyToken = keyToken;
Token n;
do
{
n = parser.AdvanceToNextToken();
if (n == null)
{
throw (new Exception("unexpected end of file, expected closing bracket"));
}
if (n.Type == TokenType.Data)
{
tokens.Add(n);
n = parser.AdvanceToNextToken();
if (n == null)
{
throw (new Exception("unexpected end of file, expected bracket, comma or key"));
}
TokenType ty = n.Type;
if (ty != TokenType.OpenBracket && ty != TokenType.CloseBracket && ty != TokenType.Comma && ty != TokenType.Key)
{
throw (new Exception("unexpected token; expected bracket, comma or key"));
}
}
if (n.Type == TokenType.OpenBracket)
{
compound = new Scope(parser);
// current token should be a TOK_CLOSE_BRACKET
n = parser.CurrentToken;
Debug.Assert(n != null);
if (n.Type != TokenType.CloseBracket)
{
throw (new Exception("expected closing bracket"));
}
parser.AdvanceToNextToken();
return;
}
}
while (n.Type != TokenType.Key && n.Type != TokenType.CloseBracket);
}
