package Data::Unixish::centerpad;

use 5.010;
use locale;
use strict;
use syntax 'each_on_array'; # to support perl < 5.12
use warnings;
#use Log::Any '$log';

use Data::Unixish::_pad;
use Data::Unixish::Util qw(%common_args);

our $VERSION = '1.49'; # VERSION

our %SPEC;

$SPEC{centerpad} = {
    v => 1.1,
    summary => 'Center text to a certain column width',
    description => <<'_',

This function can handle text containing wide characters and ANSI escape codes.

Note: to center to a certain character length instead of column width (note that
wide characters like Chinese can have width of more than 1 column in terminal),
you can turn of `mb` option even when your text contains wide characters.

_
    args => {
        %common_args,
        width => {
            schema => ['int*', min => 0],
            req => 1,
            pos => 0,
            cmdline_aliases => { w => {} },
        },
        ansi => {
            summary => 'Whether to handle ANSI escape codes',
            schema => ['bool', default => 0],
        },
        mb => {
            summary => 'Whether to handle wide characters',
            schema => ['bool', default => 0],
        },
        char => {
            summary => 'Character to use for padding',
            schema => ['str*', len=>1, default=>' '],
            description => <<'_',

Character should have column width of 1. The default is space (ASCII 32).

_
            cmdline_aliases => { c => {} },
        },
        trunc => {
            summary => 'Whether to truncate text wider than specified width',
            schema => ['bool', default => 0],
        },
    },
    tags => [qw/itemfunc text/],
};
sub centerpad {
    my %args = @_;
    Data::Unixish::_pad::_pad("c", %args);
}

sub _centerpad_begin { Data::Unixish::_pad::__pad_begin('c', @_) }
sub _centerpad_item { Data::Unixish::_pad::__pad_item('c', @_) }

1;
# ABSTRACT: Center text to a certain column width

__END__

=pod

=encoding UTF-8

=head1 NAME

Data::Unixish::centerpad - Center text to a certain column width

=head1 VERSION

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

=head1 SYNOPSIS

In Perl:

 use Data::Unixish qw(lduxl);
 my @res = lduxl([centerpad => {width=>6}], "123", "1234"); # => (" 123  ", " 1234 ")

In command line:

 % echo -e "123\n1234" | dux centerpad -w 10 -c x --format=text-simple
 xxx123xxxx
 xxx1234xxx

=head1 FUNCTIONS


=head2 centerpad(%args) -> [status, msg, result, meta]

Center text to a certain column width.

This function can handle text containing wide characters and ANSI escape codes.

Note: to center to a certain character length instead of column width (note that
wide characters like Chinese can have width of more than 1 column in terminal),
you can turn of C<mb> option even when your text contains wide characters.

Arguments ('*' denotes required arguments):

=over 4

=item * B<ansi> => I<bool> (default: 0)

Whether to handle ANSI escape codes.

=item * B<char> => I<str> (default: " ")

Character to use for padding.

Character should have column width of 1. The default is space (ASCII 32).

=item * B<in> => I<array>

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

=item * B<mb> => I<bool> (default: 0)

Whether to handle wide characters.

=item * B<out> => I<any>

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

=item * B<trunc> => I<bool> (default: 0)

Whether to truncate text wider than specified width.

=item * B<width>* => I<int>

=back

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

Please visit the project's homepage at L<https://metacpan.org/release/Data-Unixish>.

=head1 SOURCE

Source repository is at L<https://github.com/sharyanto/perl-Data-Unixish>.

=head1 BUGS

Please report any bugs or feature requests on the bugtracker website L<https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Unixish>

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.

=head1 AUTHOR

perlancar <perlancar@cpan.org>

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 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.

=cut