1. I want to spread my regexp described using qr over multiple lines.
2. Also I remember that there was some syntax for putting modifiers into a precompiled string using ? but forgot where I saw it. I want to add i and x to the regexp below.
3. Does anyone know why this regexp appears to be matching but I am not getting any output in $1 $2 $3, etc?

   package Regexp;
   
   use strict;
   use vars qw($file_re);
   
   my $underscore = '_';
   my $non_dot    = '[^.]';
   my $dot        = '[.]';
   
   $file_re =
   
     qr/((nonconsolidated|other)$underscore)?(faq|organization|literature
   +|contact|service)$underscore($non_dot+)${dot}xls/
   
   ;
   
   1;
   
   
   
   use Regexp;
   
   use strict;
   
   my @file = qw(
                 Organization_DOT.xls.txt
                 other_Service_FDNY.xls.txt
                 nonconsolidated_FAQ_NYPD.xls.txt
                 );
   
   for (@file) {
     warn $_;
     if (/$Regexp::file_re/i) {
       warn "$1 $2 $3 $4";
       warn $&;
     } else {
       warn 'AaaaaaaH';
     }
   }
   [download]

update (broquaint): added ending </ol> tag

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