public Befehl(int i, VariablenWrap a, VariablenWrap b, Variable c, string Line)
{
this.i = i;
this.a = a;
this.b = b;
this.c = c;
this.c.setBefehl(this);
this.Line = Line;
this.op = getOp(i);
}
/// <summary>
/// evaluiert von line[a] bis line[b-1] (beide einschließlich)
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public VariablenWrap evalUnaryMath(int a, int b)
{
VariablenWrap c = new VariablenWrap(new Variable(), false, false);
bool minus = false;
bool kehrbruch = false;
for (int i = a; i < b; i++)
{
switch (Line[i])
{
case '*':
case '+':
break;
case '-':
minus = !minus;
break;
case '/':
kehrbruch = !kehrbruch;
break;
default:
int j = -1;
if (kommaZiffer(i))
{
j = suchKommaZahl(i);
c.variable.setab(i, j + 1);
c.variable.parse(Double.Parse(Line.Substring(i, j + 1 - i)));
Variablen.Add("Parse: " + Line.Substring(i, j + 1 - i) + ": " + c.variable.ToString(), c.variable);
}
else if (Line[i] == '(')
{
j = suchKlammer(i);
c = evalBinaryMath(i + 1, j);
}
else if (grossbuchstabe(i))
{
j = suchVariable(i);
c = new VariablenWrap(getVariable(i, j), false, false);
}
else if (Line[i] == '!')
{
VariablenWrap d = evalUnaryMath(i + 1, b);
Variable e = new Variable(a, b);
lokaleVariablenzahler++;
Variablen.Add("lokale Variable " + lokaleVariablenzahler, e);
Befehle.Add(new Befehl(i, d, null, e, Line));
c = new VariablenWrap(e, false, false);
j = b - 1;
}
c.minus = minus;
c.kehrbruch = kehrbruch;
if (j + 1 == b)
return c;
else
throw new NotImplementedException();
}
}
throw new NotImplementedException();
}
