How to use rlib with offline datasources (CSV, XML)

I'm new to rlib and don't know how to use a csv file as datasource.

What I have done so far using perl:

#!/usr/bin/perl
use strict;
use rlib;

my $rlib = rlibc::rlib_init();
rlibc::rlib_add_datasource_csv( $rlib, "data.csv" );
rlibc::rlib_add_report( $rlib, "products.xml" );
rlibc::rlib_set_output_format_from_text( $rlib, "pdf" );
rlibc::rlib_execute( $rlib );
rlibc::rlib_spool( $rlib );
rlibc::rlib_free( $rlib );
exit 0;

------

This results in "No queries added to report".

My questions:

What is the correct structure of the csv data file?
I assume that a header line containing the field names is required. Is
this corect?

Can you give an example for an XML data file?

How can I solve the "No queries to report" problem?

I assume that I have to use rlib_add_query_as() but don't know how?

Last question:
Is there a way to store the generated report in a file?


Thanks in advance,

Werner





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