public static bool TryParseTellString(string tell, out ControlState state)
{
if (testcache.TryGetValue(tell, out state))
{
return(state != null);
}
state = null;
Match match = tellRegex.Match(tell);
if (!match.Success)
{
testcache[tell] = null;
return(false);
}
string p_side = match.Groups[1].Value;
char p_state = match.Groups[2].Value[0];
string p_true = match.Groups[3].Value;
string p_false = match.Groups[4].Value;
string p_edge = match.Groups[5].Value;
DebugLog.Log(String.Format("p_side={0} p_state={1} p_true={2} p_false={3} p_edge={4}", p_side, p_state, p_true, p_false, p_edge));
UInt64 f_true = StringToFlags(p_true);
UInt64 f_false = StringToFlags(p_false);
UInt64 flags = f_true;
UInt64 mask = f_true | f_false;
DebugLog.Log("flags={0} mask={1}", flags, mask);
var left = new MaskTest(flags << Flags.BitsToShiftForLeft, mask << Flags.BitsToShiftForLeft);
var right = new MaskTest(flags, mask);
IFlagTest test;
switch (p_side)
{
case "b": test = left & right; break;
case "l": test = left; break;
case "r": test = right; break;
case "": test = left | right; break;
default: return(false);
}
if (p_state == '0' || p_state == '2')
{
test = test.Complement;
}
bool constantTrigger = p_state == '2' || p_state == '3';
testcache[tell] = state = new ControlState(tell, test, StringToFlags(p_edge), constantTrigger);
return(true);
}
static MaskTest()
{
Tautology = new MaskTest(0, 0, BooleanOp.And);
Falsehood = new MaskTest(0, 0, BooleanOp.Or);
}