public override object VisitDirWord([NotNull] StdAssemblerParser.DirWordContext context)
{
string value;
StdToken token;
if (context.children.Count != 2)
{
throw new Exception("Error de sintáxis: Instrucción no válida");
}
else
{
value = context.VAL().GetText();
if (Regex.IsMatch(value, @"(H|h)"))
{
if (!Regex.IsMatch(value, @"^[0-9A-F]+(H|h)$"))
{
throw new Exception("Error de sintáxis: ingrese una dirección hexadecimal");
}
token = new StdToken()
{
Address = count,
IsDirective = true,
IsHex = true,
Mode = false,
OperationCode = "WORD",
Value = value
};
count += 3;
return(token);
}
else
{
if (Regex.IsMatch(value, "^[0-9]+$"))
{
value = int.Parse(value).ToString("X");
token = new StdToken()
{
Address = count,
IsDirective = true,
IsHex = false,
Mode = false,
OperationCode = "WORD",
Value = value
};
count += 3;
return(token);
}
else
{
throw new Exception("Error de sintáxis: Instrucción no válida");
}
}
}
}
/// <summary>
/// Exit a parse tree produced by the <c>DirWord</c>
/// labeled alternative in <see cref="StdAssemblerParser.directiva"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitDirWord([NotNull] StdAssemblerParser.DirWordContext context)
{
}
/// <summary>
/// Visit a parse tree produced by the <c>DirWord</c>
/// labeled alternative in <see cref="StdAssemblerParser.directiva"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitDirWord([NotNull] StdAssemblerParser.DirWordContext context)
{
return(VisitChildren(context));
}
