File Coverage

blib/lib/Data/Unixish/count.pm

Criterion	Covered	Total	%
statement	40	43	93.0
branch	3	10	30.0
condition			n/a
subroutine	10	10	100.0
pod	1	1	100.0
total	54	64	84.3

package Data::Unixish::count;

our $DATE = '2019-10-26'; # DATE
our $DIST = 'Data-Unixish'; # DIST
our $VERSION = '1.571'; # VERSION

use 5.010001;
use locale;
use strict;
use syntax 'each_on_array'; # to support perl < 5.12
use warnings;
use Log::ger;

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

our %SPEC;

sub _pattern_to_re {
    my $args = shift;

    my $re;
    my $pattern = $args->{pattern}; defined $pattern or die "Please specify pattern";
    if ($args->{fixed_string}) {
        $re = $args->{ignore_case} ? qr/\Q$pattern/i : qr/\Q$pattern/;
    } else {
        eval { $re = $args->{ignore_case} ? qr/$pattern/i : qr/$pattern/ };
        die "Invalid pattern: $@" if $@;
    }

    $re;
}

$SPEC{count} = {
    v => 1.1,
    summary => 'Count substrings (or regex pattern matches) in a string',
    description => <<'_',

_
    args => {
        %common_args,
        pattern => {
            summary => 'Pattern or substring',
            schema  => ['str*'],
            req     => 1,
            pos     => 0,
        },
        fixed_string => {
            summary => 'Interpret pattern as fixed string instead of regular expression',
            schema  => 'true*',
            cmdline_aliases => {F=>{}},
        },
        ignore_case => {
            summary => 'Whether to ignore case',
            schema  => 'bool*',
            cmdline_aliases => {i=>{}},
        },
    },
    tags => [qw/itemfunc text regex/],
};
sub count {
    my %args = @_;
    my ($in, $out) = ($args{in}, $args{out});

    # we don't call _count_item() to optimize
    my $re = _pattern_to_re(\%args);
    while (my ($index, $item) = each @$in) {
        my $n = 0;
        $n++ while $item =~ /$re/g;
        push @$out, $n;
    }

    [200, "OK"];
}

sub _count_item {
    my ($item, $args) = @_;

    my $re = _pattern_to_re($args);
    my $n = 0;
    $n++ while $item =~ /$re/g;
    $n;
}

1;
# ABSTRACT: Count substrings (or regex pattern matches) in a string

__END__