static void Interactive(Squirrel v)
{
// print version information
PrintVersionInfo();
// add "quit()" function
v.PushRootTable();
v.PushString("quit", -1);
v.NewClosure(Quit, 0);
v.SetParamsCheck(1, null);
v.NewSlot(-3, false);
for (;;)
{
int blocks = 0;
bool str = false;
bool retVal = false;
bool execute = false;
string buffer = string.Empty;
Console.Write("\nsq>");
while (!execute)
{
var c = (char)Console.Read();
switch (c)
{
case '\r': continue;
case '\n':
if (buffer.Length > 0 && buffer.Last() == '\\')
{
buffer = buffer.Remove(buffer.Length - 1);
continue;
}
if (blocks == 0)
{
execute = true;
}
break;
case '}':
if (!str)
{
blocks--;
}
break;
case '{':
if (!str)
{
blocks++;
}
break;
case '"':
case '\'':
str = !str;
break;
}
buffer += c;
}
if (!string.IsNullOrEmpty(buffer))
{
if (buffer.StartsWith("="))
{
buffer = $"return ({buffer.Substring(1)})";
retVal = true;
}
int oldtop = v.GetTop();
if (v.CompileBuffer(buffer, buffer.Length, "interactive console", true) >= 0)
{
v.PushRootTable();
if (v.Call(1, retVal, true) >= 0 && retVal != false)
{
Console.WriteLine();
v.PushRootTable();
v.PushString("print", -1);
v.Get(-2);
v.PushRootTable();
v.Push(-4);
v.Call(2, false, true);
retVal = false;
Console.WriteLine();
}
}
v.SetTop(oldtop);
}
}
}