protected void initialize(string initialValue, IBase power, bool isNegative)
{
if (string.IsNullOrWhiteSpace(initialValue))
{
return;
}
initialValue = preParse(initialValue, ref power, ref isNegative);
IBase initialValueObject = parseInitialValue(initialValue);
if (((this is ProductQuotientSet &&
initialValueObject is ProductQuotientSet) ||
(this is SumDifferenceSet &&
initialValueObject is SumDifferenceSet)) &&
(power == null && !isNegative))
{ // Merge identical set types
BaseSet newInitialValueObject = initialValueObject as BaseSet;
for (int i = 0; i < newInitialValueObject.Count; i++)
{
addUnitOperatorPair(newInitialValueObject._unitOperatorPair[i].Unit,
newInitialValueObject._unitOperatorPair[i].Operator);
}
addPower(newInitialValueObject._power);
if (newInitialValueObject._sign.IsNegative())
{
_sign = new Sign(-1);
}
}
else
{ // Add set or unit type
initialize(initialValueObject, power, isNegative);
}
}
protected void finalizeUnits()
{
if (Count != 1)
{
return;
}
IBase initialValueObject = _unitOperatorPair[0].Unit;
if (((!(this is ProductQuotientSet) || !(initialValueObject is ProductQuotientSet)) &&
(!(this is SumDifferenceSet) || !(initialValueObject is SumDifferenceSet))) ||
HasPower() && initialValueObject.HasPower())
{
return;
}
// Merge identical set types
BaseSet newInitialValueObject = initialValueObject as BaseSet;
_unitOperatorPair.Clear();
for (int i = 0; i < newInitialValueObject.Count; i++)
{
addUnitOperatorPair(newInitialValueObject._unitOperatorPair[i].Unit,
newInitialValueObject._unitOperatorPair[i].Operator);
}
_sign = _sign * newInitialValueObject._sign;
if (!HasPower())
{
addPower(newInitialValueObject._power);
}
}
protected static ProductQuotientSet unitSet(BaseSet newSet, int i)
{
if (i > newSet.Count - 1)
{
return(new ProductQuotientSet(1));
}
IBase unit = newSet._unitOperatorPair[i].Unit;
if (unit is PrimitiveUnit newSubUnit &&
newSubUnit.IsFraction())
{
return(new ProductQuotientSet(newSubUnit.Label()));
}
if (unit is ProductQuotientSet productQuotientSet &&
(0 < productQuotientSet.Count && productQuotientSet.Count <= 2))
{
return(productQuotientSet);
}
if (unit is SumDifferenceSet sumDifferenceSet &&
(0 < sumDifferenceSet.Count && sumDifferenceSet.Count <= 2))
{
return(new ProductQuotientSet(sumDifferenceSet.Label()));
}
return(new ProductQuotientSet(unit.Label()));
}
public bool Equals(BaseSet other)
{ // Equality is ignoring possible simplifications
if (other == null)
{
return(false);
}
if (Count != other.Count)
{
return(false);
}
if (!base.Equals(other))
{
return(false);
}
switch (Count)
{
case 0 when other.Count == 0:
return(true);
case 1 when other.Count == 1:
return(_unitOperatorPair[0].Unit.Equals(other._unitOperatorPair[0].Unit));
default:
return(baseUnitsAreEqual(other));
}
}
protected bool isUnitMatching(IBase unit, string targetOperator, BaseSet other)
{
foreach (UnitOperatorPair otherUnitOperator in other._unitOperatorPair)
{
if (targetOperator == otherUnitOperator.Operator &&
unit.Equals(otherUnitOperator.Unit))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Determines whether the specified <see cref="System.Object" /> is equal to this instance.
/// </summary>
/// <param name="obj">The <see cref="System.Object" /> to compare with this instance.</param>
/// <returns><c>true</c> if the specified <see cref="System.Object" /> is equal to this instance; otherwise, <c>false</c>.</returns>
public override bool Equals(object obj)
{
if (!(obj is BaseSet))
{
return(false);
}
BaseSet other = (BaseSet)obj;
if (IsEmpty() && other.IsEmpty())
{
return(true);
}
return(Equals(other));
}
protected bool baseUnitsAreEqual(BaseSet other)
{
// Check that operators contain equal numbers of +, -, or *, /
if ((operatorsCount(Query.ADD) != other.operatorsCount(Query.ADD)) ||
(operatorsCount(Query.SUBTRACT) != other.operatorsCount(Query.SUBTRACT)) ||
(operatorsCount(Query.MULTIPLY) != other.operatorsCount(Query.MULTIPLY)) ||
(operatorsCount(Query.DIVIDE) != other.operatorsCount(Query.DIVIDE)))
{
return(false);
}
// Check each unit+operator pair
foreach (UnitOperatorPair unitOperator in _unitOperatorPair)
{
if (!isUnitMatching(unitOperator.Unit, unitOperator.Operator, other))
{
return(false);
}
}
return(true);
}
