#!/usr/bin/perl
use strict;
use warnings;

my @url = ( 'a2.xyz', 'c3.xy1', 'b1.xyz1', 'a3.xy11');

for (@url){
   $_ .= '.nota.url';

    / [a-c][1-3]
      [.]
      xy (:? z[1]? | 1 )
      [.]
      nota
      [.]
      url
    /xms ? print "$_ : OK\n" : print "$_ : NOK\n";
}

[download]
Output:
a2.xyz.nota.url : OK
c3.xy1.nota.url : OK
b1.xyz1.nota.url : OK
a3.xy11.nota.url : NOK

[download]

hth,
PooLpi

'Ebry haffa hoe hab im tik a bush'. Jamaican proverb

In reply to Re: wanting a more explicit regex by poolpi
in thread wanting a more explicit regex by wolfger

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