Method evaluate

code/src/java/plugin/function/LookupFunction.java:142–186

(EvaluateVisitor visitor, Node[] args, EvaluationManager manager)

	}

	@Override
	public Object evaluate(EvaluateVisitor visitor, Node[] args, EvaluationManager manager)
	{
		LoadContext context = manager.get(ManagerKey.CONTEXT);
		AbstractReferenceContext refContext = context.getReferenceContext();
		DataTable dataTable = (DataTable) args[0].jjtAccept(visitor,
			manager.getWith(EvaluationManager.ASSERTED, Optional.of(refContext.getManufacturer(DATATABLE_CLASS))));

		FormatManager<?> lookupFormat = dataTable.getFormat(0);

		//Lookup value (format based on the table)
		Object lookupValue =
				args[1].jjtAccept(visitor, manager.getWith(EvaluationManager.ASSERTED, Optional.of(lookupFormat)));

		//Result Column
		TableColumn column = (TableColumn) args[2].jjtAccept(visitor,
			manager.getWith(EvaluationManager.ASSERTED, Optional.of(refContext.getManufacturer(COLUMN_CLASS))));

		String columnName = column.getName();
		if (!dataTable.isColumn(columnName))
		{
			FormatManager<?> fmt = column.getFormatManager();
			System.out.println("Lookup called on invalid column: '" + columnName + "' is not present on table '"
				+ dataTable.getName() + "' assuming default for " + fmt.getIdentifierType());
			FormulaManager fm = manager.get(EvaluationManager.FMANAGER);
			return fm.getDefault(fmt);
		}
		String lookupRule = "EXACT";
		if (args.length == 4)
		{
			lookupRule = (String) args[3].jjtAccept(visitor,
				manager.getWith(EvaluationManager.ASSERTED, Optional.of(FormatUtilities.STRING_MANAGER)));
		}
		LookupType lookupType = DataTable.LookupType.valueOf(lookupRule);
		if (!dataTable.hasRow(lookupType, lookupValue))
		{
			FormatManager<?> fmt = column.getFormatManager();
			System.out.println(
				"Lookup called on invalid item: '" + lookupValue + "' is not present in the first row of table '"
					+ dataTable.getName() + "' assuming default for " + fmt.getIdentifierType());
			FormulaManager fm = manager.get(EvaluationManager.FMANAGER);
			return fm.getDefault(fmt);
		}
		return dataTable.lookup(lookupType, lookupValue, columnName);
	}

	@Override
	public Optional<FormatManager<?>> getDependencies(DependencyVisitor visitor, DependencyManager manager, Node[] args)