Nerval Reports is a lightweight report creation library, focused on minimal computational costs. Ideally, report creation should iterate only once through its data and minimize memory allocation and processor's use, but also restrict its dependencies only to what your specific use needs. Instead of the highly expensive way of well-known engines like Jasper Reports, where performance and data reiteration is a big and set aside problem (and also is the report design as a non-programming task), at Nerval Reports the data should be sent directly when iterating through it (ie: when using databases, one will create its report while iterating through the result set - instead of creating a bunch of collections to pass them to the library), and the design is mainly focused on programmer side. ...