#!/usr/bin/perl -w
use strict;

# save & localize $, as necessary

my @pics = qw( pic0 pic1 pic2 pic3 pic4 pic5 pic6 pic7);

my $pic_preface = " pre ";
my $pic_suffix = " suf ";
my $next_row =  " end_row\n";
my $table_end = "\ntable end\n";

my $pics_per_row = 5;

{ my $i;
 for ( $i=1; $i <= @pics; $i++) {
    print "$pic_preface", $pics[$i-1];
    print ( 0 == $i % $pics_per_row ?  $next_row : $pic_suffix);
 }
 print $next_row unless 0 == $i % $pics_per_row;
 print $table_end;
}