public Operador(TextoAParsear t)
{
operando = ' ';
try
{
if (t.Vacio())
{
throw new NotValidObject();
}
char c = t.GetChar();
switch (c)
{
case '+':
case '-':
case '/':
case '*':
operando = c;
t.CharProcessed();
return;
}
throw new NotValidObject();
}
catch (EndOfString eos)
{
throw new NotValidObject();
}
}
private void run_Click(object sender, EventArgs e)
{
string ope = operacion.Text;
if (ope == "clean")
{
log.Text = "";
operacion.Text = "";
VarValue.lista.Clear();
listaVariables.Text = "";
return;
}
log.Text += ope + " = ";
string result;
try
{
TextoAParsear tmp = new TextoAParsear(ope);
Operacion op = new Operacion(tmp);
if (!tmp.Vacio())
{
throw new Exception("Error de sintaxis");
}
result = op.Evalua().ToString();
log.Text += result + "\r\n";
log.SelectionStart = log.Text.Length;
log.SelectionLength = 0;
log.ScrollToCaret();
log.SelectAll();
operacion.Text = "(" + result + ")";
operacion.SelectionStart = operacion.Text.Length;
operacion.SelectionLength = 0;
listaVariables.Clear();
foreach (VarValue val in VarValue.lista)
{
listaVariables.Text += val.nombre.ToString() + ": " + val.value.ToString() + "\r\n";
}
}
catch (Exception ex)
{
log.Text += "\r\n" + ex.Message + "\r\n\r\n";
}
operacion.Focus();
}
public OperadorVariable(TextoAParsear t)
{
if (t.Vacio())
{
throw new NotValidObject();
}
char c = t.GetChar();
if (c == '=')
{
isAssignment = true;
op = null;
t.CharProcessed();
}
else
{
op = new Operador(t);
}
}