I am currently working on redoing a past CGI/perl program, and I ran into another problem with my code: how can I reverse the reading of when I read in a text file flatfile db? I need to be able to do this for a news section of this project. Here is the code below:

sub count_lines {
    $lines = 0;
    open(FILE, $_[0]) || die "Error opening the file!";
    while(<FILE>) {
        $lines += ($_ =~ tr/\n//);
    }
    print "<center>$lines line(s) in [$filepointer].</center><br><br>\
+n";
    close (FILE);
}
 
sub breakup_lines {
    open(FILE, $_[0]) || die "Error opening the file!";
    &amp;amp;init_vars;
    while(<FILE>) {
    $newlength = 0;
        $cmax = 0;
    push @list, (split /\|/);
    $count++;
        $length = @list;
        $newlength = $length - $oldlength;
        #print "length of line: ",$newlength,"<br>";
        #print "count: ",$count,"<br>";
        $cmax = $length;
        $oldlength = $length;
        #print "list array: ",@list;
    #if ($show{'news'} == 1) {
    &amp;amp;print_news;
    #}
    }
    close (FILE);
}
 
sub init_vars {
    $count = 0;
    $next = 0;
    $dolines = 0;
    $oldlength = 0;
}
 
1;

[download]


I know that the code is not the best chunk in the world, but it is what I have currently, since it is still under development. I would appreciate any help or tips!

Also, just FYI, this .lib is read into by another file, where the print_news subroutine is located.

Andy

In reply to Reversing (the) reading of a file. by bladx

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