File Coverage

blib/lib/Indent/Utils.pm

Criterion	Covered	Total	%
statement	40	40	100.0
branch	2	2	100.0
condition	3	3	100.0
subroutine	11	11	100.0
pod	6	6	100.0
total	62	62	100.0

package Indent::Utils;

use base qw(Exporter);
use strict;
use warnings;

use Error::Pure qw(err);
use Readonly;

# Constants.
Readonly::Scalar my $DEFAULT_TAB_LENGTH => 8;
Readonly::Scalar my $SPACE => q{ };

our $VERSION = 0.08;

# Length of tab.
our $TAB_LENGTH = $DEFAULT_TAB_LENGTH;

# Export.
our @EXPORT_OK = qw(line_size_check reduce_duplicit_ws remove_first_ws
	remove_last_ws remove_ws string_len);

# Line size check.
sub line_size_check {
	my $self = shift;
	if (! defined $self->{'line_size'}
		|| $self->{'line_size'} !~ m/^\d+$/ms) {

		err '\'line_size\' parameter must be a positive number.',
			'line_size', $self->{'line_size'};
	}
	return;
}

# Reduce duplicit blank space in string to one space.
# @param $string Reference to data string.
sub reduce_duplicit_ws {
	my $string_sr = shift;
	${$string_sr} =~ s/\s+/\ /gms;
	return;
}

# Remove blank characters in begin of string.
# @param $string Reference to data string.
sub remove_first_ws {
	my $string_sr = shift;
	${$string_sr} =~ s/^\s*//ms;
	return;
}

# Remove blank characters in end of string.
# @param $string Reference to data string.
sub remove_last_ws {
	my $string_sr = shift;
	${$string_sr} =~ s/\s*$//ms;
	return;
}

# Remove white characters in begin and end of string.
# @param $string reference to data string.
sub remove_ws {
	my $string_sr = shift;
	remove_last_ws($string_sr);
	remove_first_ws($string_sr);
	return;
}

# Gets length of string.
# @param $string Data string.
# @return $length_of_string Length of data string, when '\t' translate to
# $TAB_LENGTH x space.
sub string_len {
	my $string = shift;
	my $tmp = $SPACE x $TAB_LENGTH;
	$string =~ s/\t/$tmp/gms;
	my $length_of_string = length $string;
	return $length_of_string;
}

1;

__END__