Data::Unixish::bool - Format boolean


This document describes version 1.49 of Data::Unixish::bool (from Perl distribution Data-Unixish), released on 2015-01-03.


In Perl:

 use Data::Unixish qw(lduxl);
 my @res = lduxl([bool => {style=>"check_cross"}], [0, "one", 2, ""])
 # => ("✕","✓","✓","✕")

In command line:

 % echo -e "0\none\n2\n\n" | dux bool -s y_n --format=text-simple


bool(%args) -> [status, msg, result, meta]

Format boolean.

Arguments ('*' denotes required arguments):

  • false_char => str

    Instead of style, you can also specify character for true value.

  • in => array

    Input stream (e.g. array or filehandle).

  • notion => str (default: "perl")

    What notion to use to determine true/false.

    perl uses Perl notion.

    n1 (for lack of better name) is just like Perl notion, but empty array and empty hash is considered false.

    TODO: add Ruby, Python, PHP, JavaScript, etc notion.

  • out => any

    Output stream (e.g. array or filehandle).

  • style => str (default: "one_zero")

    Available styles:

    • Y_N: N Y

    • check (uses Unicode): ✓

    • check_cross (uses Unicode): ✕ ✓

    • dot (uses Unicode): ●

    • dot_cross (uses Unicode): ✘ ●

    • heavy_check_cross (uses Unicode): ✘ ✔

    • one_zero: 0 1

    • t_f: f t

    • true_false: false true

    • v_X: X v

    • y_n: n y

    • yes_no: no yes

  • true_char => str

    Instead of style, you can also specify character for true value.

Returns an enveloped result (an array).

First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.

Return value: (any) =head1 HOMEPAGE

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