asdsadsd
/*
asds
wqeoiywe

qwe

qwewewe

oooooo

sadssdsa

##</code><code>##

#!/usr/bin/perl

use warnings;
use strict;

package main;

my $file = './test_file';

my $line = inFile->new($file);

print $line->getLine();

package inFile;

sub new {
   my $class = shift;

   my $self = {
       fname  => shift,
       fp     => undef,
       lineno => 0,
       buff   => []
   };

   my $fname = $self->{fname};
   open($self->{fp},"< $fname") || die "failed to open the file $fname ($!)\n";
   bless $self, $class;
}

sub getLine {
    my ($self) = @_;
    my $fp   = $self->{fp};
    my $buf  = $self->{buff};
    if (@{$buf}) {
        $self->{lineno}++;
        return shift @{$buf};
    }
    my $line;
    while ($line = <$fp>) {
        $self->{lineno}++;
        chomp $line;
        next if $line =~ /^\s*$/;
        return $line;
    }
    return undef;
}