public void AddFact(Clause fact)
{
_facts.Add(fact);
}
protected override IntersectionType Intersect(Clause rhs)
{
string v1 = _value;
string v2 = rhs.Value;
var a = 0.0;
var b = 0.0;
if (double.TryParse(v1, out a) && double.TryParse(v2, out b))
{
if (rhs is LessClause)
{
//v1 >= a
//v2 < b
//mutually exclusive: b <= a
//unmatched: b > a
if (b <= a)
{
return(IntersectionType.MUTUALLY_EXCLUDE);
}
else
{
return(IntersectionType.UNKNOWN);
}
}
else if (rhs is LEClause)
{
//v1 >= a
//v2 < b
//matched: b <= a
//unmatched: b > a
if (b <= a)
{
return(IntersectionType.MUTUALLY_EXCLUDE);
}
else
{
return(IntersectionType.UNKNOWN);
}
}
else if (rhs is IsClause)
{
//v1 >= a
//v2 = b
//matched: b >= a
//mutually exclusive: b < a
if (b >= a)
{
return(IntersectionType.INCLUDE);
}
else
{
return(IntersectionType.MUTUALLY_EXCLUDE);
}
}
else if (rhs is GEClause)
{
//v1 >= a
//v2 >= b
//mutually exclusive: b >= a
//unmatched: b < a
if (b >= a)
{
return(IntersectionType.INCLUDE);
}
else
{
return(IntersectionType.UNKNOWN);
}
}
else if (rhs is GreaterClause)
{
//v1 >= a
//v2 > b
//mutually exclusive: b >= a
//unmatched: b < a
if (b >= a)
{
return(IntersectionType.INCLUDE);
}
else
{
return(IntersectionType.UNKNOWN);
}
}
else
{
return(IntersectionType.UNKNOWN);
}
}
else
{
return(IntersectionType.UNKNOWN);
}
}