private static List <FilterSubExpression> ParseTopGroup(List <FilterSubExpression> exprs, out bool parsed)
{
List <FilterSubExpression> groups = exprs.Where(x => x.IsPrimitive <OpenGroupToken>()).ToList();
if (groups.Count == 0)
{
parsed = false;
return(exprs);
}
List <FilterSubExpression> ret = exprs.ToList();
parsed = true;
int topGroupLevel = groups.Max(x => x.AsPrimitive <OpenGroupToken>().DeptLevel);
FilterSubExpression open = groups.First(x => x.AsPrimitive <OpenGroupToken>().DeptLevel == topGroupLevel);
int topGroupId = open.AsPrimitive <OpenGroupToken>().GroupId;
FilterSubExpression closed = exprs.First(x => x.AsPrimitive <CloseGroupToken>()?.GroupId == topGroupId);
List <FilterSubExpression> groupExpr = new List <FilterSubExpression>();
int openIndex = ret.IndexOf(open);
int closedIndex = ret.IndexOf(closed);
for (int i = openIndex + 1; i < closedIndex; i++)
{
groupExpr.Add(ret[i]);
ret[i] = null;
}
ret[closedIndex] = null;
ret[openIndex] = new GroupFilterSubExpression(groupExpr);
return(ret.Where(x => x != null).ToList());
}
public GroupFilterSubExpression(List <FilterSubExpression> expressions)
{
Expression = FilterParser.Parse(expressions);
}
public TruthyFilterSubExpression(FilterSubExpression expression)
{
Expression = expression ?? throw new ArgumentNullException(nameof(expression));
}
public NegationFilterSubExpression(FilterSubExpression expr)
{
Expression = expr ?? throw new ArgumentNullException(nameof(expr));
}
