private BigWire GetWireFromString(string st)
{
if (st.StartsWith("("))
{
return(CreateParenthesesWire(st, false));
}
BigWire wire = null;
if (varsToWires.ContainsKey(st))
{
wire = varsToWires[st];
if (wire.IsOutput && wire.SourceGate == null)
{
throw new Exception("Variable " + st + " was not initialized");
}
}
if (wire != null)
{
if (wire.TargetGate != null)
{
return(wire.Clone());
}
else
{
return(wire);
}
}
int value;
try
{
value = Convert.ToInt32(st);
}
catch (Exception)
{
if (st.Contains("("))
{
throw new Exception("No operation before opening ( in expression: " + st);
}
throw new Exception("variable '" + st + "' is not defined");
}
return(new BigWire(new BigZp(prime, value)));
}
