private GSCore execRandom(GSCoreCollection args)
{
int count = args.Count;
string exceptValue = "";
for (int i = 0; i < count; i++)
{
if (args[i].getStringValue().Equals("#"))
{
if (i < count - 1)
{
exceptValue = args[i + 1].getStringValue();
}
count = i;
break;
}
}
Random rnd = new Random(DateTime.Now.Millisecond);
GSCore rv = null;
for (int i = 0; i < 20; i++)
{
rv = args.getSafe(rnd.Next(count));
if (exceptValue.Equals("") || !rv.getStringValue().Equals(exceptValue))
{
return(rv);
}
}
return(rv);
}
private GSCore execWhile(GSCoreCollection args)
{
GSCoreCollection commands = args.getSublist(1);
GSCore r = null;
while (ExecuteElement(args.getSafe(0)).getBooleanValue())
{
foreach (GSCore cmd in commands)
{
r = ExecuteElement(cmd);
if (r is GSReturn)
{
break;
}
}
if (r is GSReturn)
{
GSReturn ret = r as GSReturn;
if (ret.Type == GSReturn.TYPE_BREAK)
{
break;
}
if (ret.Type == GSReturn.TYPE_RETURN)
{
return(ret);
}
}
}
return(GSVoid.Void);
}
private GSCore execForeach(GSCoreCollection args)
{
if (args.Count < 4)
{
Debugger.Log(0, "", "Insufficient arguments for (FOREACH varName : list commands ) ");
return(null);
}
GSCore t1 = args.getSafe(0);
GSCore l1 = ExecuteElement(args.getSafe(2));
if (!(t1 is GSToken))
{
Debugger.Log(0, "", "Token shoudl be second argument in FOREACH ");
return(null);
}
if (!(l1 is GSList))
{
Debugger.Log(0, "", "List should be fourth argument in FOREACH ");
return(null);
}
GSToken tk = (GSToken)t1;
GSList lst = (GSList)l1;
GSCore r = null;
int ik = 0;
foreach (GSCore item in lst.Parts)
{
SetVariable(tk.Token, item);
for (int i = 3; i < args.Count; i++)
{
r = ExecuteElement(args.getSafe(i));
if (r is GSReturn)
{
break;
}
}
ik++;
if (r is GSReturn)
{
GSReturn ret = r as GSReturn;
if (ret.Type == GSReturn.TYPE_BREAK)
{
break;
}
if (ret.Type == GSReturn.TYPE_RETURN)
{
return(ret);
}
}
}
return(new GSInt64(ik));
}
private GSCore execIf(GSCoreCollection args)
{
GSCore cond = ExecuteElement(args.getSafe(0));
GSCore cmd1 = args.getSafe(1);
GSCore cmd2 = args.getSafe(2);
GSCore r = null;
if (cond.getBooleanValue())
{
bool running = false;
foreach (GSCore cmd in args)
{
if (cmd is GSToken && cmd.ToString().Equals("then"))
{
running = true;
}
if (cmd is GSToken && cmd.ToString().Equals("else"))
{
running = false;
}
if (running)
{
r = ExecuteElement(cmd);
if (r is GSReturn)
{
return(r);
}
}
}
}
else
{
bool running = false;
foreach (GSCore cmd in args)
{
if (cmd is GSToken && cmd.ToString().Equals("else"))
{
running = true;
}
if (running)
{
r = ExecuteElement(cmd);
if (r is GSReturn)
{
return(r);
}
}
}
}
return(cond);
}
private GSCore execDo(GSCoreCollection args)
{
GSCore last = null;
foreach (GSCore item in args)
{
last = ExecuteElement(item);
if (last is GSReturn)
{
return(last);
}
}
return(last);
}
private GSCore execMessage(GSCoreCollection args)
{
GSCore result = GSVoid.Void;
// first is token, name of variable, object
// second is token, message name
// third etc are arguments
if (args.Count >= 2 && args.getSafe(0) is GSToken && args.getSafe(1) is GSToken)
{
// evaluate the remaining portion of list
GSCoreCollection subArgs = getNativeValues(args.getSublist(2));
// first and second tokens
GSToken t1 = args.getSafe(0) as GSToken;
GSToken t2 = args.getSafe(1) as GSToken;
// evaluate reference to object
GSCore obj = ExecuteElement(t1);
// execute message in the object
result = obj.ExecuteMessage(t2.Token, subArgs);
}
return(result);
}
public override GSCore ExecuteMessage(string token, GSCoreCollection args)
{
GSCore result = null;
if (token.Equals("print"))
{
result = execPrint(args, false);
}
else if (token.Equals("println"))
{
result = execPrint(args, true);
}
else if (token.Equals("if"))
{
result = execIf(args);
}
else if (token.Equals("while"))
{
result = execWhile(args);
}
else if (token.Equals("foreach"))
{
result = execForeach(args);
}
else if (token.Equals("x"))
{
result = execMessage(args);
}
else if (token.Equals("do"))
{
result = execDo(args);
}
else if (token.Equals("return"))
{
result = new GSReturn(args.getSafe(0));
}
else if (token.Equals("break"))
{
result = new GSReturn(GSReturn.TYPE_BREAK);
}
else if (token.Equals("continue"))
{
result = new GSReturn(GSReturn.TYPE_CONTINUE);
}
else if (token.Equals("set") && args.Count > 1)
{
result = execSet(args[0], args[1]);
}
else if (token.Equals("random"))
{
result = execRandom(args);
}
else
{
if (token.IndexOf('.') >= 0)
{
string[] tp = token.Split('.');
GSCore obj = this;
for (int a = 0; a < tp.Length - 1; a++)
{
if (obj == null)
{
break;
}
obj = obj.GetPropertyValue(tp[a]);
}
if (obj != null)
{
return(obj.ExecuteMessage(tp[tp.Length - 1], args));
}
}
Debugger.Log(0, "", "UNKNOWN MESSAGE: " + token + " ");
}
return(result);
}
/// <summary>
/// Formating string:
/// 20s - string with padding to 20 chars, left align
/// -20s - string with padding to 20 chars, right align
/// 2d - integer number padded to 2 chars with spaces, right align
/// 02d - integer number padded to 2 chars with zero, right align
/// 1.7f - floating point value with at least 1 digit before point and 7 digits after point
/// </summary>
/// <param name="ph">Input placeholder (without markup substrings,
/// this can contain also some formatting after : character</param>
/// <returns></returns>
public string ReplaceVariablePlaceholder(string ph)
{
string fmt = "";
int phi = ph.IndexOf(':');
if (phi >= 0)
{
fmt = ph.Substring(phi + 1);
ph = ph.Substring(0, phi);
}
GSCore cs = EvaluateProperty(ph);
if (fmt.EndsWith("s"))
{
string value = cs.getStringValue();
int places;
if (int.TryParse(fmt.Substring(0, fmt.Length - 1), out places))
{
if (places > 0)
{
value = value.PadRight(places);
}
else
{
value = value.PadLeft(-places);
}
}
return(value);
}
else if (fmt.EndsWith("m"))
{
string value = cs.getStringValue();
int places;
if (int.TryParse(fmt.Substring(0, fmt.Length - 1), out places))
{
if (value.Length > places)
{
value = value.Substring(0, places - 3) + "...";
}
else
{
if (places > 0)
{
value = value.PadRight(places);
}
else
{
value = value.PadLeft(-places);
}
}
}
return(value);
}
else if (fmt.EndsWith("d"))
{
bool padWithZero = false;
int places;
string result = "";
long ival = cs.getIntegerValue();
if (int.TryParse(fmt.Substring(0, fmt.Length - 1), out places))
{
if (fmt.StartsWith("0"))
{
padWithZero = true;
}
if (padWithZero)
{
result = string.Format("{0:0".PadRight(places - 1, '0') + "}", ival);
result = result.PadLeft(places, '0');
}
else
{
result = string.Format("{0:#".PadRight(places - 1, '#') + "}", ival);
result = result.PadLeft(places, ' ');
}
}
else
{
result = ival.ToString();
}
return(result);
}
else if (fmt.EndsWith("f"))
{
string a, b;
fmt = fmt.Substring(0, fmt.Length - 1);
int i = fmt.IndexOf('.');
if (i >= 0)
{
a = fmt.Substring(0, i);
b = fmt.Substring(i + 1);
}
else
{
a = fmt;
b = "0";
}
int ia, ib;
double d = cs.getDoubleValue();
string result;
if (int.TryParse(a, out ia) && int.TryParse(b, out ib))
{
result = string.Format("{0:" + string.Format("F{0}", ib) + "}", d);
result = result.PadLeft(ia + ib + 1);
}
else
{
result = d.ToString();
}
return(result);
}
else
{
return(cs.getStringValue());
}
}
