/// <summary>
/// Create a negation of <paramref name="expression"/>.
/// </summary>
/// <param name="expression">the expression to negate</param>
public Negation(IQueryAtom expression)
: base()
{
this.expression = (SMARTSAtom)expression;
this.chiral = expression.GetType().Equals(typeof(ChiralityAtom));
base.Left = expression;
base.Operator = "not";
}
/// <summary>
/// Create a disjunction of <see cref="Left"/> or <see cref="right"/>.
/// </summary>
/// <param name="left">the expression to negate</param>
/// <param name="right">the expression to negate</param>
public Disjunction(IQueryAtom left, IQueryAtom right)
: base()
{
this.left = (SMARTSAtom)left;
this.right = (SMARTSAtom)right;
base.Left = left;
base.Right = right;
base.Operator = "or";
}
/// <summary>
/// Create a disjunction of <see cref="Left"/> or <see cref="right"/>.
/// </summary>
/// <param name="builder">chem object builder</param>
/// <param name="left">the expression to negate</param>
/// <param name="right">the expression to negate</param>
public Disjunction(IChemObjectBuilder builder, IQueryAtom left, IQueryAtom right)
: base(builder)
{
this.left = (SMARTSAtom)left;
this.right = (SMARTSAtom)right;
base.Left = left;
base.Right = right;
base.Operator = "or";
}