NAME

Data::Unixish::chain - Chain several dux functions together

VERSION

This document describes version 1.47 of Data::Unixish::chain (from Perl distribution Data-Unixish), released on 2014-06-12.

SYNOPSIS

In Perl:

 use Data::Unixish qw(lduxl);
 my @res = lduxl([chain => {functions => ['date', ["ANSI::color" => {color=>"yellow"}]]}], 1000, 2000);

In command-line:

 % echo -e "1000\n2000" | dux chain --functions-json '["date", ["ANSI::color",{"color":"yellow"}]]'
 2
 3
 4

FUNCTIONS

chain(%args) -> [status, msg, result, meta]

Chain several dux functions together.

Currently works for itemfunc only.

See also the Data::Unixish::Apply function, which is related.

Arguments ('*' denotes required arguments):

• functions* => array

  The functions to chain.

  Each element must either be function name (like date) or a 2-element array containing the function name and its arguments (like [bool, {style: dot}]).

• in => any

  Input stream (e.g. array or filehandle).

• out => any

  Output stream (e.g. array or filehandle).

Return value:

Returns an enveloped result (an array).

First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Data-Unixish.

SOURCE

Source repository is at https://github.com/sharyanto/perl-Data-Unixish.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Unixish

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.

AUTHOR

Steven Haryanto <stevenharyanto@gmail.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2014 by Steven Haryanto.

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

cpanm Data::Unixish

perl -MCPAN -e shell
install Data::Unixish