NAME
Data::Section::Seekable - Read and write parts from data section
VERSION
This document describes version 0.091 of Data::Section::Seekable (from
Perl distribution Data-Section-Seekable), released on 2023-01-20.
DESCRIPTION
This module defines a simple format to let you store and read parts from
data section. The distribution also comes with a reader (see
Data::Section::Seekable::Reader) and a writer/generator (see
Data::Section::Seekable::Writer).
Like Data::Section, the format allows you to store multiple parts in
data section. This module's format is different from Data::Section's and
is meant to allow seeking to any random content part just by reading the
index/"table of content" part of the data section.
FORMAT
This document descries version 1 (v1) of the format.
First line of data section is the header line and must be:
Data::Section::Seekable v1
Actually, the header line need not be the first line of data. Previous
lines not matching the header line will be ignored (so you can put other
stuffs here).
After the header line, comes zero or more TOC ("table of content")
lines. Each TOC line must match this Perl regex:
/^([^,]+), (\d+), (\d+) (?:, (.*))?/x
The first field is the name, the second field is the offset, the third
field is the length. Offset starts from 0 and the zero is counted from
after the blank line after the last TOC line. The fourth field is to
store extra information, it is optional and can contain zero or more
non-newline characters.
After the last TOC line is a blank line. And after that is content.
Example:
Data::Section::Seekable v1
part1,0,14
part2,14,17,very,important
This is part1
This is part
two
HOMEPAGE
Please visit the project's homepage at
<https://metacpan.org/release/Data-Section-Seekable>.
SOURCE
Source repository is at
<https://github.com/perlancar/perl-Data-Section-Seekable>.
SEE ALSO
Data::Section
AUTHOR
perlancar <perlancar@cpan.org>
CONTRIBUTING
To contribute, you can send patches by email/via RT, or send pull
requests on GitHub.
Most of the time, you don't need to build the distribution yourself. You
can simply modify the code, then test via:
% prove -l
If you want to build the distribution (e.g. to try to install it locally
on your system), you can install Dist::Zilla,
Dist::Zilla::PluginBundle::Author::PERLANCAR,
Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two
other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps
required beyond that are considered a bug and can be reported to me.
COPYRIGHT AND LICENSE
This software is copyright (c) 2023, 2016, 2015 by perlancar
<perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
BUGS
Please report any bugs or feature requests on the bugtracker website
<https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Section-Seekable
>
When submitting a bug or request, please include a test-file or a patch
to an existing test-file that illustrates the bug or desired feature.