/// <summary>
/// Process the 'arglist1' rule.
/// </summary>
/// <remarks>
///
/// arglist1 ::= expression arglist2 |
///
/// </remarks>
/// <returns>Parsed node.</returns>
protected virtual EvalNode ParseArgList1()
{
EvalNode args = new EvalNodeArgList(ParseExpression(), Language);
EvalNodeArgList arg2 = ParseArgList2();
if (arg2 != null)
args.Append(arg2.RemoveAll());
return args;
}
/// <summary>
/// Process the 'arglist2' rule.
/// </summary>
/// <remarks>
///
/// arglist2 ::= ',' expression arglist2 |
/// {empty}
///
///</remarks>
/// <returns>Parsed node.</returns>
protected virtual EvalNodeArgList ParseArgList2()
{
if (Tokeniser.Next(TokenType.Comma))
{
EvalNodeArgList args = new EvalNodeArgList(ParseExpression(), Language);
EvalNodeArgList arg2 = ParseArgList2();
if (arg2 != null)
args.Append(arg2.RemoveAll());
return args;
}
return null;
}
/// <summary>
/// Process the 'arglist' rule.
/// </summary>
/// <remarks>
///
/// arglist ::= expression arglist2 |
/// {empty}
///
/// </remarks>
/// <returns>Parsed node.</returns>
protected virtual EvalNode ParseArgList()
{
if (Tokeniser.Peek.Type != TokenType.CloseRoundBracket)
{
EvalNode args = new EvalNodeArgList(ParseExpression(), Language);
EvalNodeArgList arg2 = ParseArgList2();
if (arg2 != null)
args.Append(arg2.RemoveAll());
return args;
}
return null;
}
