NAME

JSON::Color - Encode to colored JSON

VERSION

This document describes version 0.131 of JSON::Color (from Perl distribution JSON-Color), released on 2021-05-07.

SYNOPSIS

 use JSON::Color qw(encode_json);
 say encode_json([1, "two", {three => 4}]);

DESCRIPTION

This module generates JSON, colorized with ANSI escape sequences.

To change the color, see the %theme in the source code. In theory you can also modify it to colorize using HTML.

FUNCTIONS

encode_json($data, \%opts) => STR

Encode to JSON. Will die on error (e.g. when encountering non-encodeable data like Regexp or file handle).

Known options:

• color_theme => STR

  Pick a color theme, which is a ColorTheme-confirming color theme module. The default is JSON::Color::ColorTheme::default. For example: ColorTheme::Lens::Lighten

• pretty => BOOL (default: 0)

  Pretty-print.

• linum => BOOL (default: 0)

  Show line number.

• sort_by => CODE

  If specified, then sorting of hash keys will be done using this sort subroutine. This is similar to the sort_by option in the JSON module. Note that code is executed in JSON::Color namespace, example:

   # reverse sort
   encode_json(..., {sort_by => sub { $JSON::Color::b cmp $JSON::Color::a }});

  Another example, using Sort::ByExample:

   use Sort::ByExample cmp => {-as => 'by_eg', example => [qw/foo bar baz/]};
   encode_json(..., {sort_by => sub { by_eg($JSON::Color::a, $JSON::Color::b) }});

FAQ

What about loading?

Use JSON.

How to handle non-encodeable data?

Use Data::Clean::JSON.

Why do numbers become strings?

Example:

 % perl -MJSON::Color=encode_json -E'say encode_json([1, "1"])'
 ["1","1"]

To detect whether a scalar is a number (e.g. differentiate between "1" and 1), the XS module Scalar::Util::LooksLikeNumber is used. This is set as an optional prerequisite, so you'll need to install it separately. After the prerequisite is installed:

 % perl -MJSON::Color=encode_json -E'say encode_json([1, "1"])'
 [1,"1"]

ENVIRONMENT

JSON_COLOR_COLOR_THEME

Set default color theme. Has precedence over "COLOR_THEME".

COLOR_THEME

Set default color theme.

HOMEPAGE

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

SOURCE

Source repository is at https://github.com/perlancar/perl-JSON-Color.

BUGS

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

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.

SEE ALSO

To colorize with HTML, you can try Syntax::Highlight::JSON.

Syntax::SourceHighlight can also colorize JSON/JavaScript to HTML or ANSI escape. It requires the GNU Source-highlight library.

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2021, 2020, 2016, 2015, 2014, 2012 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 JSON::Color

perl -MCPAN -e shell
install JSON::Color