Yes, all rows are complete. To check RegExp, I was printing each new line and after parsing the data to the DB directly was quering for a new entry using unique ID (index). To check each parsed line I use the following code:

# Display RexExp results
print STDERR join("\t",@arguments),"\n";

<here add all data from @argumens to a DB (as described in the origina
+l post)>

# check if data parsed successfully
my $sql2 = 'SELECT *
    FROM hist_mod_score
    WHERE Counts=?';
    $sth = $dbh->prepare($sql2) or die $dbh->errstr;
    $sth->execute($index) or die $sth->errstr;

# dump fetched query results        
    $sth->dump_results if $sth->{NUM_OF_FIELDS};
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In the output I've got the following:

0    SM_Th2_1_K27ac    SM    Th2    1    K27ac    Tbx21-1    4.8878613
+2768108e-10
0 rows
1    SM_Th2_1_K27ac    SM    Th2    1    K27ac    Tbx21-2    3.8016699
+2152973e-10
0 rows

...

120    SM_Th2_2_K9me3    SM    Th2    2    K9me3    Tbx21-21    4.1899
+3008961981e-10
'120', 'SM_Th2_2_K9me3', 'SM', 'Th2', '2', 'K9me3', 'Tbx21-21', '4.189
+93008961981e-10'
1 rows
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