Hello Perlmonks,
My question is related to Re^4: fetch url
I'm almost there .............

input:
# topic,description,url,hits,
topic,description,url,10,
topic,description,url2,4,
topic,description,url3,6,
topic,description,url4,3,

snippet:

my (%hash);

my $data = "$BaseDir/perf.log";
open STUFF, $data or die "cannot open for read $!";

while ( <STUFF>) {
       chomp;
       #my $X = "html";
       #next if ( $_ !~ /^$X/ );    # Only look at lines begin with th
+e topic
       next if ( $_ !~ /^[a-z]/ );    # Only look at lines begin with 
+the topic
        my ($topic, $desc, $url, $hits) = split "," ;
        if ($topic){
                ${hash}{$url}{topic} = $topic if ($topic);
                ${hash}{$url}{desc} = $desc if ($desc);
                ${hash}{$url}{url} = $url if ($url);
                ${hash}{$url}{hits} = $hits if ($hits);
        }
}
close STUFF;

print Dumper %hash , "\n";

print "Sort Numeric using <=> with supersort\n";

foreach my $sorted_url ( reverse sort { $hash{$a}->{'hits'} <=> $hash{
+$b}->{'hits'} } keys %hash){
        print $sorted_url, " has got ", ${hash}{$sorted_url}{hits}, " 
+hits \n";
[download]

output:
Sort Numeric using <=> with supersort
url has got 10 hits
url3 has got 6 hits
url2 has got 4 hits
url4 has got 3 hits

Just we want to have.




Question: I use the same technique in a subroutine
input: (same)
# topic,description,url,hits,
topic,description,url,10,
topic,description,url2,4,
topic,description,url3,6,
topic,description,url4,3,
snippet:

# -|print_topic|------------------------------------------------------
+---------
# Pre : t_topic
# Post:
# --------------------------------------------------------------------
+---------

sub print_topic ($) {
    
    my $t_topic = shift;
                  
     open( INFILE, "$conf_file" ) or die "$!";
     while (<INFILE>) {
         chomp;
         my (%hash);
         next if 0 == length($_);    # Solves "Use of uninitialized va
+lue in .......... "
         next if ( $_ !~ /^$t_topic/ );    # Only look at lines begin 
+with the t_topic
         
         my ($topic, $desc, $url, $hits) = split "," ;
                 if ($topic)
                        {
                        ${hash}{$url}{topic} = $topic if ($topic);
                        ${hash}{$url}{desc}  = $desc if ($desc);
                        ${hash}{$url}{url}   = $url if ($url);
                        ${hash}{$url}{hits}  = $hits if ($hits);
                        }
    
    
         #print "Sort Numeric using <=> with supersort\n";
#print Dumper %hash , "\n";
        foreach my $sorted_url ( reverse sort { $hash{$a}->{'hits'} <=
+> $hash{$b}->{'hits'} } keys %hash){
        print $sorted_url, " has got ", ${hash}{$sorted_url}{hits}, "\
+n";
        }

     }
    close INFILE;     
 }
[download]

output: (not sorted by number!!!!!)

topic,description,url,10,
topic,description,url2,4,
topic,description,url3,6,
topic,description,url4,3,
Do you have any clue ?

Thank you in advance
Perlboer

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