my $section = 0;  my @sectone;  my @secttwo;
while(<TEXTFILE>) {
    if (/;section(1)/) {
        push(@sectionone, $_);
    } elsif (/;section(2)/) {
        push(@sectiontwo, $_);
    } else {
            print "No section defined for: $_\n";
        }
    }

##</code><code>##

my $section = 0;  my @sectone;  my @secttwo;
while(<TEXTFILE>) {
    if (/;section([12])/) {
        push( $1 == 1? @sectionone : @sectiontwo, $_);
    }
    else {
            print "No section defined for: $_\n";
        }
    }

##</code><code>##

my $section = 0;
my %sections = (1 =>[],2=>[]);
while(<TEXTFILE>) {
  if (/;section([12])/) {
    push @{$sections{$1}},$_;
  }
  else {
            print "No section defined for: $_\n";
        }
    }

##</code><code>##

my $section = 0;
my %sections = (1 =>[],2=>[]);
while(<TEXTFILE>) {
    push @{$sections{$1}},$_
      and next
    if /;section([12])/;

    warn "No section defined for: $_\n";
# cause warn gives you $. in <TEXTFILE>
}

##</code><code>##

my $section = 0;  my @sectone;  my @secttwo;
while(<TEXTFILE>) {
    if (/;section([12])/) {
        $section = ( $1 == 1 ? @sectionone : @sectiontwo);
    }
    else {
            push @{$section},$_ and next if $section;
            warn "No section defined for: $_\n";
        }
    }

##</code><code>##

my $section = 0;
my %sections = (1 =>[],2=>[]);
while(<TEXTFILE>) {
    if (/;section([12])/) {
       $section = $1 and next
    }
    push @{$sections{$section||
                     warn "No section defined for: $_\n"
                     and next()}}
    ,$_;
}

##</code><code>##

my $section = 0;
my %sections = (1 =>[],2=>[]);
while(<TEXTFILE>) {
$sections=$1 and next if /;section([12])/;
warn "No section defined for: $_\n" unless $sections;
push @{$sections{$sections}},$_
}

##</code><code>##

my $section = 0;
my %sections = (1 =>[],2=>[]);
while(<TEXTFILE>) {

    push @{$sections{( /;section([12])/ 
                       and $section = $1
                       and next() )
                     or (
                     $section ||
                     warn "No section defined for: $_\n"
                     and next() )}}
    ,$_;
}