public Token Expect(string value, bool ignoreCase = true)
{
if (!this.Is(value, ignoreCase))
{
throw UltraLiteException.UnexpectedToken(this, value);
}
return(this);
}
/// <summary>
/// If EOF throw an invalid token exception (used in while()) otherwise return "false" (not EOF)
/// </summary>
public bool CheckEOF()
{
if (_eof)
{
throw UltraLiteException.UnexpectedToken(this.Current);
}
return(false);
}
/// <summary>
/// Expect for type1 OR type2 OR type3 (if not, throw UnexpectedToken)
/// </summary>
public Token Expect(TokenType type1, TokenType type2, TokenType type3)
{
if (this.Type != type1 && this.Type != type2 && this.Type != type3)
{
throw UltraLiteException.UnexpectedToken(this);
}
return(this);
}
internal BsonValue ReadValue(Token token)
{
switch (token.Type)
{
case TokenType.String: return(token.Value);
case TokenType.OpenBrace: return(this.ReadObject());
case TokenType.OpenBracket: return(this.ReadArray());
case TokenType.Minus:
// read next token (must be a number)
var number = _tokenizer.ReadToken(false).Expect(TokenType.Int, TokenType.Double);
return(number.Type == TokenType.Double ?
new BsonValue(-Convert.ToDouble(number.Value, _numberFormat)) :
new BsonValue(-Convert.ToInt32(number.Value, _numberFormat)));
case TokenType.Int: return(new BsonValue(Convert.ToInt32(token.Value, _numberFormat)));
case TokenType.Double: return(new BsonValue(Convert.ToDouble(token.Value, _numberFormat)));
case TokenType.Word:
switch (token.Value.ToLower())
{
case "null": return(BsonValue.Null);
case "true": return(true);
case "false": return(false);
default: throw UltraLiteException.UnexpectedToken(token);
}
}
throw UltraLiteException.UnexpectedToken(token);
}
