/ 
App-MineralUtils-0.012
River stage zero No dependents
/ convert-potassium-unit

NAME

convert-potassium-unit - Convert a potassium quantity from one unit to another

VERSION

This document describes version 0.012 of convert-potassium-unit (from Perl distribution App-MineralUtils), released on 2024-03-22.

SYNOPSIS

convert-potassium-unit --help (or -h, -?)

convert-potassium-unit --version (or -v)

convert-potassium-unit [--format=name|--json] [--(no)naked-res] [--page-result[=program]|--view-result[=program]] -- [quantity] [to_unit]

See examples in the "EXAMPLES" section.

DESCRIPTION

If target unit is not specified, will show all known conversions.

OPTIONS

* marks required options.

Main options

--quantity=s

Default value:

"1 mg"

Can also be specified as the 1st command-line argument.

--to-unit=s

Valid values:

["mg","mg-k-elem","mg-k-chloride","mg-k-cl","mg-k-citrate"]

Can also be specified as the 2nd command-line argument.

Output options

--format=s

Choose output format, e.g. json, text.

Default value:

undef

Output can be displayed in multiple formats, and a suitable default format is chosen depending on the application and/or whether output destination is interactive terminal (i.e. whether output is piped). This option specifically chooses an output format.

--json

Set output format to json.

--naked-res

When outputing as JSON, strip result envelope.

Default value:

0

By default, when outputing as JSON, the full enveloped result is returned, e.g.:

[200,"OK",[1,2,3],{"func.extra"=>4}]

The reason is so you can get the status (1st element), status message (2nd element) as well as result metadata/extra result (4th element) instead of just the result (3rd element). However, sometimes you want just the result, e.g. when you want to pipe the result for more post-processing. In this case you can use --naked-res so you just get:

[1,2,3]
--page-result

Filter output through a pager.

This option will pipe the output to a specified pager program. If pager program is not specified, a suitable default e.g. less is chosen.

--view-result

View output using a viewer.

This option will first save the output to a temporary file, then open a viewer program to view the temporary file. If a viewer program is not chosen, a suitable default, e.g. the browser, is chosen.

Other options

--help, -h, -?

Display help message and exit.

--version, -v

Display program's version and exit.

COMPLETION

This script has shell tab completion capability with support for several shells.

bash

To activate bash completion for this script, put:

complete -C convert-potassium-unit convert-potassium-unit

in your bash startup (e.g. ~/.bashrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.

It is recommended, however, that you install modules using cpanm-shcompgen which can activate shell completion for scripts immediately.

tcsh

To activate tcsh completion for this script, put:

complete convert-potassium-unit 'p/*/`convert-potassium-unit`/'

in your tcsh startup (e.g. ~/.tcshrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.

It is also recommended to install shcompgen (see above).

other shells

For fish and zsh, install shcompgen as described above.

EXAMPLES

Show all possible conversions

% convert-potassium-unit
+--------+---------------+---------------------------------------------+
| amount | unit          | summary                                     |
+--------+---------------+---------------------------------------------+
|  1.000 | mg-k-elem     | Elemental potassium, in milligrams          |
|  1.908 | mg-k-chloride | Potassium chloride (KCl), in milligrams     |
|  1.908 | mg-k-cl       | Potassium chloride (KCl), in milligrams     |
|  2.611 | mg-k-citrate  | Potassium citrate (K3C6H5O7), in milligrams |
+--------+---------------+---------------------------------------------+

How much of potassium chloride provides 1000 mg of elemental potassium?

% convert-potassium-unit '1000 mg-k-elem' mg-k-cl
1908.39694656489

How much elemental potassium is in 1000mg (1g) of potassium chloride powder in capsule form?

% convert-potassium-unit '1000 mg-k-chloride' mg-k-chloride
1000

A tablet supplement called KSR contains 600mg of potassium chloride; how much elemental potassium is that?

% convert-potassium-unit '600 mg-k-chloride' mg-k-elem
314.4
% convert-potassium-unit '4700 mg-k-elem' mg-k-chloride
8969.46564885496

HOMEPAGE

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

SOURCE

Source repository is at https://github.com/perlancar/perl-App-MineralUtils.

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) 2024, 2022, 2021 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-MineralUtils

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.