NAME
App::hr - Print horizontal bar on the terminal
VERSION
This document describes version 0.268 of App::hr (from Perl distribution
App-hr), released on 2022-09-03.
SYNOPSIS
use App::hr qw(hr hr_r);
hr;
Sample output:
=============================================================================
Set pattern:
hr('x----');
Sample output:
x----x----x----x----x----x----x----x----x----x----x----x----x----x----x----x-
Use random color and random pattern:
hr_r;
You can also use the provided CLI hr.
DESCRIPTION
A demo screencast:
FUNCTIONS
hr([ $pattern [, $color ] ]) => optional STR
Print (under void context) or return (under scalar/array context) a
horizontal ruler with the width of the terminal.
Terminal width is determined using Term::Size.
$pattern is optional, can be multicharacter, but cannot be empty string.
The defautl is "=".
Under Windows, will shave one character at the end because the terminal
cursor will move a line down when printing at the last column.
If $color is set (to a color supported by Term::ANSIColor) *and* colored
output is enabled, output will be colored. Colored output is enabled if:
1) no "NO_COLOR" environment variable is defined; 2) "COLOR" is
undefined or true, or program is run interactively.
hr_r => optional STR
Like "hr", but will set random pattern and random color.
hr_Br => optional STR
Like "hr", but will set random pattern and random color and return a
blinking bar.
hr_app
Usage:
hr_app(%args) -> [$status_code, $reason, $payload, \%result_meta]
Print horizontal bar on the terminal.
hr can be useful as a marker/separator, especially if you use other
commands that might produce a lot of output, and you need to scroll back
lots of pages to see previous output. Example:
% hr; command-that-produces-lots-of-output
============================================================================
Command output
...
...
...
% hr -r; some-command; hr -r; another-command
Usage:
% hr
============================================================================
% hr -c red ;# will output the same bar, but in red
% hr --random-color ;# will output the same bar, but in random color
% hr x----
x----x----x----x----x----x----x----x----x----x----x----x----x----x----x----x
% hr -- -x- ;# specify a pattern that starts with a dash
% hr -p -x- ;# ditto
% hr --random-pattern
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
% hr --random-pattern
*---*---*---*---*---*---*---*---*---*---*---*---*---*---*---*---*---*---*---
% hr -r ;# shortcut for --random-pattern --random-color
% hr -Br ;# a BLINKING random pattern, random color bar
% hr --help
If you use Perl, you can also use the "hr" function in App::hr module.
This function is not exported.
Arguments ('*' denotes required arguments):
* blink => *bool*
Return a blinking bar.
* color => *str*
Specify a color (see Term::ANSIColor).
* height => *int* (default: 1)
Specify height (number of rows).
* pattern => *str*
Specify a pattern.
* random_color => *bool*
* random_pattern => *bool*
* space_after => *int* (default: 0)
Number of empty rows after drawing the bar.
* space_before => *int* (default: 0)
Number of empty rows before drawing the bar.
Returns an enveloped result (an array).
First element ($status_code) is an integer containing HTTP-like status
code (200 means OK, 4xx caller error, 5xx function error). Second
element ($reason) is a string containing error message, or something
like "OK" if status is 200. Third element ($payload) is the actual
result, but usually not present when enveloped result is an error
response ($status_code is not 2xx). Fourth element (%result_meta) is
called result metadata and is optional, a hash that contains extra
information, much like how HTTP response headers provide additional
metadata.
Return value: (any)
ENVIRONMENT
NO_COLOR
COLOR
HOMEPAGE
Please visit the project's homepage at
<https://metacpan.org/release/App-hr>.
SOURCE
Source repository is at <https://github.com/perlancar/perl-App-hr>.
SEE ALSO
ruler (App::ruler)
AUTHOR
perlancar <perlancar@cpan.org>
CONTRIBUTOR
Steven Haryanto <stevenharyanto@gmail.com>
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) 2022, 2021, 2020, 2018, 2016, 2015, 2014
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=App-hr>
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.