private FactorNode(SummandNode summand, List <IToken> tokens, List <SummandNode> summands, IScopedTable <IEntityType, string> parentTypeTable)
{
Summand = summand;
Tokens = tokens;
Summands = summands;
ParentTypeTable = parentTypeTable;
}
public static Either <ParseException, Pair <List <IToken>, FactorNode> > Parse(List <IToken> tokens, IScopedTable <IEntityType, string> parentTypeTable)
{
Console.WriteLine("FactorNode");
var maybeSummand = SummandNode.Parse(tokens, parentTypeTable);
if (maybeSummand.IsLeft)
{
return(maybeSummand.LeftToList()[0]);
}
var summand = maybeSummand.RightToList()[0].Second;
var tokenlist = new List <IToken>();
var summands = new List <SummandNode>();
tokens = maybeSummand.RightToList()[0].First;
while (tokens.Count > 0)
{
if (tokens[0] is NewLineSymbolToken || tokens[0] is CommentToken)
{
tokens = tokens.Skip(1).ToList();
}
else
{
break;
}
}
while (true)
{
if (tokens.Count < 1)
{
break;
}
if (!((tokens[0] is PlusOperatorToken) || (tokens[0] is MinusOperatorToken)))
{
break;
}
tokenlist.Add(tokens[0]);
tokens = tokens.Skip(1).ToList();
var maybeSummand2 = SummandNode.Parse(tokens, parentTypeTable);
if (maybeSummand2.IsLeft)
{
return(maybeSummand2.LeftToList()[0]);
}
tokens = maybeSummand2.RightToList()[0].First;
summands.Add(maybeSummand2.RightToList()[0].Second);
while (tokens.Count > 0)
{
if (tokens[0] is NewLineSymbolToken || tokens[0] is CommentToken)
{
tokens = tokens.Skip(1).ToList();
}
else
{
break;
}
}
}
while (tokens.Count > 0)
{
if (tokens[0] is NewLineSymbolToken || tokens[0] is CommentToken)
{
tokens = tokens.Skip(1).ToList();
}
else
{
break;
}
}
return(new Pair <List <IToken>, FactorNode>(tokens, new FactorNode(summand, tokenlist, summands, parentTypeTable)));
}
