package Data::Unixish::wc;
use 5.010;
use strict;
use syntax 'each_on_array'; # to support perl < 5.12
use warnings;
#use Log::Any '$log';
use Data::Unixish::Util qw(%common_args);
our $VERSION = '1.47'; # VERSION
our %SPEC;
$SPEC{wc} = {
v => 1.1,
summary => 'Print newline, word, and byte counts',
description => <<'_',
Behavior mimics that of the Unix `wc` utility. The order of the counts which is
returned is always: newline, word, character, byte, maximum line length.
_
args => {
%common_args,
bytes => {
summary => "Return the bytes counts",
schema => [bool => default => 0],
cmdline_aliases => { c => {} },
},
chars => {
summary => "Return the character counts",
schema => [bool => default => 0],
cmdline_aliases => { m => {} },
},
words => {
summary => "Return the word counts",
schema => [bool => default => 0],
cmdline_aliases => { w => {} },
},
lines => {
summary => "Return the newline counts",
schema => [bool => default => 0],
cmdline_aliases => { l => {} },
},
max_line_length => {
summary => "Return the length of the longest line",
schema => [bool => default => 0],
cmdline_aliases => { L => {} },
},
},
tags => [qw/text group/],
"x.dux.strip_newlines" => 0, # for duxapp < 1.41, will be removed later
"x.app.dux.strip_newlines" => 0,
"x.perinci.cmdline.default_format" => "text-simple",
};
sub wc {
my %args = @_;
my ($in, $out) = ($args{in}, $args{out});
my ($bytes, $chars, $words, $lines);
my $maxllen = 0;
while (my ($index, $item) = each @$in) {
next if !defined($item) || ref($item);
for my $line (split /^/, $item) {
$lines++;
$chars += length($line);
{ use bytes; $bytes += length($line) }
my @w = split /[ \t]+/o, $line; $words += @w;
chomp($line);
my $llen;
{ use bytes; $llen = length($line) }
$maxllen = $llen if $llen > $maxllen;
}
}
my $pbytes = $args{bytes};
my $pchars = $args{chars};
my $pwords = $args{words};
my $plines = $args{lines};
my $pmaxllen = $args{max_line_length};
if (!$pbytes && !$pchars && !$pwords && !$plines && !$pmaxllen) {
$pbytes++; $pwords++; $plines++;
}
my @res;
push @res, $lines if $plines;
push @res, $words if $pwords;
push @res, $chars if $pchars;
push @res, $bytes if $pbytes;
push @res, $maxllen if $pmaxllen;
push @$out, join("\t", @res);
[200, "OK"];
}
1;
# ABSTRACT: Print newline, word, and byte counts
__END__
=pod
=encoding UTF-8
=head1 NAME
Data::Unixish::wc - Print newline, word, and byte counts
=head1 VERSION
This document describes version 1.47 of Data::Unixish::wc (from Perl distribution Data-Unixish), released on 2014-06-12.
=head1 SYNOPSIS
In Perl:
use Data::Unixish qw(lduxl);
my @text = split /^/, "What do you want?\nWhat do you want me to want?\n";
my $res = lduxl([wc => {words=>1, lines=>1}], @text); # => "2\t11"
In command line:
% seq 1 100 | dux wc
100 100 292
=head1 FUNCTIONS
=head2 wc(%args) -> [status, msg, result, meta]
Print newline, word, and byte counts.
Behavior mimics that of the Unix C<wc> utility. The order of the counts which is
returned is always: newline, word, character, byte, maximum line length.
Arguments ('*' denotes required arguments):
=over 4
=item * B<bytes> => I<bool> (default: 0)
Return the bytes counts.
=item * B<chars> => I<bool> (default: 0)
Return the character counts.
=item * B<in> => I<any>
Input stream (e.g. array or filehandle).
=item * B<lines> => I<bool> (default: 0)
Return the newline counts.
=item * B<max_line_length> => I<bool> (default: 0)
Return the length of the longest line.
=item * B<out> => I<any>
Output stream (e.g. array or filehandle).
=item * B<words> => I<bool> (default: 0)
Return the word counts.
=back
Return 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.
=head1 SEE ALSO
wc(1)
=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
Steven Haryanto <stevenharyanto@gmail.com>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2014 by Steven Haryanto.
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