BalticAmadeus.FluentMdx.MdxParser.TryParseAxis C# (CSharp) Method

        internal static bool TryParseAxis(IStatedTwoWayEnumerator<Token> enumerator, out MdxExpressionBase expression)
        {
            enumerator.SavePosition();
            expression = null;

            var axis = Mdx.Axis();

            if (IsNextTokenValid(enumerator, TokenType.Non))
            {
                if (!IsNextTokenValid(enumerator, TokenType.Empty))
                {
                    enumerator.RestoreLastSavedPosition();
                    return false;
                }

                axis.AsNonEmpty();
            }

            MdxExpressionBase slicer;
            if (TryParseTuple(enumerator, out slicer))
            {
                axis.WithSlicer((MdxTuple)slicer);
            }
            else if (TryParseSet(enumerator, out slicer))
            {
                axis.WithSlicer(Mdx.Tuple().With((MdxSet)slicer));
            }
            else if (TryParseRange(enumerator, out slicer))
            {
                axis.WithSlicer(Mdx.Tuple().With((MdxRange)slicer));
            }
            else if (TryParseMember(enumerator, out slicer))
            {
                axis.WithSlicer(Mdx.Tuple().With((MdxMember)slicer));
            }
            else if (TryParseFunction(enumerator, out slicer))
            {
                axis.WithSlicer(Mdx.Tuple().With((MdxFunction)slicer));
            }
            else
            {
                enumerator.RestoreLastSavedPosition();
                return false;
            }

            if (IsNextTokenValid(enumerator, TokenType.Dimension))
            {
                if (!IsNextTokenValid(enumerator, TokenType.Properties))
                {
                    enumerator.RestoreLastSavedPosition();
                    return false;
                }

                do
                {
                    if (!IsNextTokenValid(enumerator, TokenType.DimensionProperty))
                    {
                        enumerator.RestoreLastSavedPosition();
                        return false;
                    }

                    axis.WithProperties(enumerator.Current.Value);
                } while (IsNextTokenValid(enumerator, TokenType.MemberSeparator));
            }
            else if (IsNextTokenValid(enumerator, TokenType.Properties))
            {
                do
                {
                    if (!IsNextTokenValid(enumerator, TokenType.DimensionProperty))
                    {
                        enumerator.RestoreLastSavedPosition();
                        return false;
                    }

                    axis.WithProperties(enumerator.Current.Value);
                } while (IsNextTokenValid(enumerator, TokenType.MemberSeparator));
            }

            if (!IsNextTokenValid(enumerator, TokenType.On))
            {
                enumerator.RestoreLastSavedPosition();
                return false;
            }

            if (!IsNextTokenValid(enumerator, TokenType.AxisNameIdentifier) &&
                !IsNextTokenValid(enumerator, TokenType.NumberExpression))
            {
                enumerator.RestoreLastSavedPosition();
                return false;
            }

            string axisName = enumerator.Current.Value;
            axis.Titled(axisName);

            expression = axis;

            enumerator.RemoveLastSavedState();
            return true;
        }