private static bool TryTakeParensExp(TokenKeeper pos, out ExpressionNode node)
{
var work = new TokenKeeper(pos);
if (TryTakeOpenParens(work) &&
TryTakeCalcExp(work, out var calc) &&
TryTakeCloseParens(work))
{
node = new ParensExpressionNode(calc);
pos.Swap(work);
return(true);
}
node = null;
return(false);
}
private static ComputationNode ConvertParensNode(ParensExpressionNode parensNode)
{
return(Convert(parensNode.Calculation));
}
