NAME

Data::TableReader::Decoder - Base class for table decoders

VERSION

version 0.011

DESCRIPTION

This is an abstract base class describing the API for decoders.

A decoder's job is to iterate table rows of a file containing tabular data. If a file provides multiple tables of data (such as worksheets, or <TABLE> tags) then the decode should also support the "next_dataset" method.

ATTRIBUTES

filename

Set by TableReader. Useful for logging.

file_handle

Set by TableReader. This is what the iterator should parse.

METHODS

iterator

This must be implemented by the subclass, to return an instance of Data::TableReader::Iterator. The iterator should return an arrayref each time it is called, and accept one optional argument of a "slice" needed from the record. All decoder iterators return arrayrefs, so the slice should be an arrayref of column indicies equivalent to the perl syntax

  @row[@$slice]

AUTHOR

Michael Conrad <mike@nrdvana.net>

COPYRIGHT AND LICENSE

This software is copyright (c) 2019 by Michael Conrad.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.