private bool TryGetUnaryPrefixNode(ref string input, [NotNullWhen(true)] out UnaryPrefixNode?output)
{
if (input.Length > 0)
{
var op = OperatorsFormatter.CharToUnaryOperator(input[0]);
if (op != UnaryOperatorType.Unknown)
{
var innerInput = input.Substring(1);
if (TryGetUnaryNode(ref innerInput, out var innerUnaryNode))
{
input = innerInput;
output = new UnaryPrefixNode(op, innerUnaryNode);
return(true);
}
}
}
output = null;
return(false);
}
private bool TryGetUnaryPrefixWithPowerNode(ref string input, [NotNullWhen(true)] out UnaryPrefixNode?output)
{
if (input.Length > 0)
{
var op = OperatorsFormatter.CharToUnaryOperator(input[0]);
if (op != UnaryOperatorType.Unknown)
{
var innerInput = input.Substring(1);
if (TryGetBinaryNode(ref innerInput, out var innerBinaryNode, BinaryOperatorType.Power))
{
if (innerBinaryNode.Rights.Any())
{
input = innerInput;
output = new UnaryPrefixNode(op, new UnaryExpressionNode(innerBinaryNode));
return(true);
}
}
}
}
output = null;
return(false);
}
