/// <summary>
/// <see cref="BaseExprn" /> := { ident | numeric | string | bool };
/// </summary>
/// <returns>
/// <see cref="Nodes" />.<see cref="Nodes.Node" />. Monadic
/// </returns>
private static Nodes.Node BaseExprn()
{
//Go further down the order of precedence
//Return if at the end of the expression or not Base value
if ((CurrentToken == null) ||
((CurrentToken?.TokenType != Token.TokenTypes.Instruction) &&
(CurrentToken?.TokenType != Token.TokenTypes.String) &&
(CurrentToken?.TokenType != Token.TokenTypes.Boolean) &&
(CurrentToken?.TokenType != Token.TokenTypes.Binary) &&
(CurrentToken?.TokenType != Token.TokenTypes.Float) &&
(CurrentToken?.TokenType != Token.TokenTypes.Hex) &&
(CurrentToken?.TokenType != Token.TokenTypes.Octal) &&
(CurrentToken?.TokenType != Token.TokenTypes.Decimal) &&
(CurrentToken?.TokenType != Token.TokenTypes.Variable) &&
!Helper.IsNumeric(CurrentToken)))
{
return(new Nodes.Error("Base value not found"));
}
//Create node for base value, and consume the token
var node = new Nodes.Node(CurrentToken);
ConsumeToken();
return(node);
}
/// <summary>
/// Adds the <paramref name="node" />.
/// </summary>
/// <param name="node">The <paramref name="node" />.</param>
/// <returns><see cref="Nodes" />.<see cref="Nodes.Node" />.</returns>
public static Nodes.Node AddNode(Nodes.Node node)
{
AbstractSyntaxTree.Nodes.Add(node);
return(node);
}