private IEnumerable <FieldResult> ProcessField(InvoiceTemplate template, Document document, InvoiceField field)
{
var result = extractor.Extract(field, document).ToArray();
foreach (var aggregator in aggregators)
{
if (!aggregator.CanHandle(field))
{
continue;
}
IEnumerable <FieldResult> aggregated = aggregator.Aggregate(template, field, result);
foreach (FieldResult item in aggregated)
{
yield return(item);
}
yield break;
}
foreach (var fieldResult in result)
{
yield return(fieldResult);
}
}
