NAME
convert-potassium-unit - Convert a potassium quantity from one unit to another
VERSION
This document describes version 0.020 of convert-potassium-unit (from Perl distribution App-MineralUtils), released on 2024-12-04.
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-anhydrous","mg-k-chloride-dihydrate","mg-k-citrate-anhydrous","mg-k-citrate-monohydrate","mg-k-carbonate-anhydrous","mg-k-carbonate-dihydrate","mg-k-bicarbonate-anhydrous","mg-k-acetate-anhydrous","mg-k-acetate-monohydrate","mg-k-acetate-trihydrate"]
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
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 | pct_k | unit | summary |
+--------+---------+----------------------------+---------------------------------------------------------------------------------------------------------------------+
| 1.000 | 100.000 | mg-k-elem | Elemental potassium, in milligrams |
| 1.908 | 52.445 | mg-k-chloride-anhydrous | Potassium chloride (KCl) anhydrous [most common hydrate form of KCl at room temp], in milligrams |
| 2.825 | 35.357 | mg-k-chloride-dihydrate | Potassium chloride dihydrate (KCl.2H2O) [unstable at room temp], in milligrams |
| 2.611 | 38.282 | mg-k-citrate-anhydrous | Tripotassium citrate anhydrous (K3C6H5O7), in milligrams |
| 2.762 | 36.156 | mg-k-citrate-monohydrate | Tripotassium citrate monohydrate (K3C6H5O7.H2O) [most common hydrate form of K-citrate at room temp], in milligrams |
| 1.767 | 56.580 | mg-k-carbonate-anhydrous | Potassium carbonate anhydrous (K2CO3), in milligrams |
| 2.227 | 44.879 | mg-k-carbonate-dihydrate | Potassium carbonate dihydrate (K2CO3.2H2O) [most common hydrate form of K-carbonate at room temp], in milligrams |
| 2.558 | 39.053 | mg-k-bicarbonate-anhydrous | Potassium bicarbonate anhydrous (KHCO3) [most common hydrate form of K-bicarbonate at room temp], in milligrams |
| 2.513 | 39.839 | mg-k-acetate-anhydrous | Potassium acetate anhydrous (C2H3O2K), in milligrams |
| 2.967 | 33.659 | mg-k-acetate-monohydrate | Potassium acetate monohydrate (C2H9KO5) [most common hydrate form of K-acetate at room temp], in milligrams |
| 3.891 | 25.690 | mg-k-acetate-trihydrate | Potassium acetate trihydrate (C2H9KO5), in milligrams |
+--------+---------+----------------------------+---------------------------------------------------------------------------------------------------------------------+
How much of potassium chloride provides 1000 mg of elemental potassium?
% convert-potassium-unit '1000 mg-k-elem' mg-k-chloride-anhydrous
1908.39694656489
How much elemental potassium is in 1000mg (1g) of potassium chloride powder in capsule form?
% convert-potassium-unit '1000 mg-k-chloride-anhydrous' mg-k-elem
524
A tablet supplement called KSR contains 600mg of potassium chloride; how much elemental potassium is that?
% convert-potassium-unit '600 mg-k-chloride-anhydrous' mg-k-elem
314.4
Recommended daily intake (DV) of (elemental) potassium for adults and children 4 years or older is 4,700mg according to US FDA; how much is that equivalent to in KCl? Note that it is *NOT* recommended (and most probably dangerous) to take KCl supplement that much as potassium is contained in other sources too
% convert-potassium-unit '4700 mg-k-elem' mg-k-chloride-anhydrous
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 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.