Hi,

I wrote a quick and dirty script to play mp3's from a html index. I parses the file and cuts out the mp3's and if they match a pattern it plays them. However when matching the pattern perl complains that Use of uninitialized value in concatenation (.) at play.pl line 10, <INPUT> line 23. I think it is interpreting the . (as in .mp3) as the concat operator and is bombing out. I got around this as you can see by escaping the . but what's the correct way to fix this problem? 

use strict;

$SIG{INT} = 'IGNORE';
open(INPUT,"index.html") || die "Cant open index.html\n";

while(<INPUT>){
  if(/^<a href=\"(.*)\">/){
    my $mp3 = $1;
    $mp3 =~ s/\./\\\./g;
    if ($mp3 =~ /$ARGV[0]/i){
      $mp3 =~ s/\\\./\./g;
      (my $print_mp3 = $mp3) =~ s/%20/ /g;
      print "Now Playing $print_mp3\n";
      `mpg123 -p none -b 500 -q $mp3`;
    }
  }
}

close INPUT;

[download]
p> Diarmuid

In reply to The right way to avoid an error by diarmuid

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