NAME

format-with-sah - Format data

VERSION

This document describes version 0.476 of format-with-sah (from Perl distribution App-SahUtils), released on 2020-02-12.

SYNOPSIS

Usage:

 % format-with-sah [options] <format>

Examples:

 % format-with-sah iso8601_date --data-as-perl '1466055012'
 2016-06-16

OPTIONS

* marks required options.

Action selection options

--show-code, -c

Don't format data, show generated formatter code only.

Configuration options

--config-path=s

Set path to configuration file.

Can be specified multiple times.

--config-profile=s, -P

Set configuration profile to use.

--no-config

Do not use any configuration file.

Data specification options

--data-as-json=s

Data as JSON.

--data-as-perl=s

Data as Perl code.

--multiple-data-as-json=s

Multiple data as JSON code, JSON data must be an array.

--multiple-data-as-perl=s

Multiple data as Perl code, perl code should return arrayref.

Environment options

--no-env

Do not read environment for default options.

Formatter specification options

--compiler=s, -C

Select compiler.

Default value:

 "perl"

Valid values:

 ["perl","js"]

--format-arg=s*

--formatter-args-json=s

See --formatter-args.

--formatter-args=s

Output options

--data-with-result, -d

Show data alongside with formatted result.

The default is to show the formatted result only.

--format=s

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

Default value:

 undef

--json

Set output format to json.

--linenum, -l

When showing source code, add line numbers.

--no-naked-res

When outputing as JSON, add result envelope.

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.

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 format-with-sah format-with-sah

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 format-with-sah 'p/*/`format-with-sah`/'

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.

FAQ

When there is an error (e.g. in generating formatter code, in formatting) the program returns undef/null, how do I see the error message?

Pass `--no-naked-res` to see the error code and error message. The default is naked for simpler output.

CONFIGURATION FILE

This script can read configuration files. Configuration files are in the format of IOD, which is basically INI with some extra features.

By default, these names are searched for configuration filenames (can be changed using --config-path): ~/.config/format-with-sah.conf, ~/format-with-sah.conf, or /etc/format-with-sah.conf.

All found files will be read and merged.

To disable searching for configuration files, pass --no-config.

You can put multiple profiles in a single file by using section names like [profile=SOMENAME] or [SOMESECTION profile=SOMENAME]. Those sections will only be read if you specify the matching --config-profile SOMENAME.

You can also put configuration for multiple programs inside a single file, and use filter program=NAME in section names, e.g. [program=NAME ...] or [SOMESECTION program=NAME]. The section will then only be used when the reading program matches.

Finally, you can filter a section by environment variable using the filter env=CONDITION in section names. For example if you only want a section to be read if a certain environment variable is true: [env=SOMEVAR ...] or [SOMESECTION env=SOMEVAR ...]. If you only want a section to be read when the value of an environment variable has value equals something: [env=HOSTNAME=blink ...] or [SOMESECTION env=HOSTNAME=blink ...]. If you only want a section to be read when the value of an environment variable does not equal something: [env=HOSTNAME!=blink ...] or [SOMESECTION env=HOSTNAME!=blink ...]. If you only want a section to be read when an environment variable contains something: [env=HOSTNAME*=server ...] or [SOMESECTION env=HOSTNAME*=server ...]. Note that currently due to simplistic parsing, there must not be any whitespace in the value being compared because it marks the beginning of a new section filter or section name.

List of available configuration parameters:

 compiler (see --compiler)
 data_as_json (see --data-as-json)
 data_as_perl (see --data-as-perl)
 data_with_result (see --data-with-result)
 format (see --format-arg)
 formatter_args (see --formatter-args)
 linenum (see --linenum)
 multiple_data_as_json (see --multiple-data-as-json)
 multiple_data_as_perl (see --multiple-data-as-perl)
 naked_res (see --naked-res)
 show_code (see --show-code)

ENVIRONMENT

FORMAT_WITH_SAH_OPT => str

Specify additional command-line options.

FILES

~/.config/format-with-sah.conf

~/format-with-sah.conf

/etc/format-with-sah.conf

HOMEPAGE

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

SOURCE

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

BUGS

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

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

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2020, 2019, 2018, 2017, 2016, 2015 by 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.

cpanm App::SahUtils

perl -MCPAN -e shell
install App::SahUtils