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Re: Script to parse a text file and extract unique email addresses

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On 29/09/14 01:17, Mladen Gogala wrote:

> #!/usr/bin/env perl
> use warnings;
> use strict;
> my %EMAILS;
> while (<>) {
>      if (/([a-z0-9.-]+\@[a-z0-9.-]+)/i) {
>          if ( !defined( $EMAILS{$1} ) ) {
>              $EMAILS{$1} = 1;
>          }
>          else { next; }
>      }
>      else { next; }
> }
> foreach my $addr ( sort keys %EMAILS ) {
>      print "$addr\n";
> }

The domain part of the regex is fine (excepting new fangled unicode 
domains).

However the local part (before the @) is lacking a large set of legal 
characters.

http://en.wikipedia.org/wiki/Email_address#Local_part

(because it's easier than finding *that* particular RFC).

In particular _ and + are quite common

I often find web script programmers make serious errors as I try to use 
one of my email addresses and it barfs.

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Thread

Script to parse a text file and extract unique email addresses nomdeplume82008@googlemail.com - 2014-08-19 10:19 -0700
  Re: Script to parse a text file and extract unique email addresses Andreas Kohlbach <aug14.8.ankman@spamgourmet.com> - 2014-08-19 16:40 -0400
    Re: Script to parse a text file and extract unique email addresses The Natural Philosopher <tnp@invalid.invalid> - 2014-08-20 14:21 +0100
      Re: Script to parse a text file and extract unique email addresses nomdeplume82008@googlemail.com - 2014-08-20 08:52 -0700
        Re: Script to parse a text file and extract unique email addresses Andreas Kohlbach <aug14.8.ankman@spamgourmet.com> - 2014-08-20 18:26 -0400
          Re: Script to parse a text file and extract unique email addresses nomdeplume82008@googlemail.com - 2014-08-20 21:10 -0700
            Re: Script to parse a text file and extract unique email addresses Andreas Kohlbach <aug14.8.ankman@spamgourmet.com> - 2014-08-21 18:07 -0400
          Re: Script to parse a text file and extract unique email addresses Tim Watts <tw_usenet@dionic.net> - 2014-08-21 10:53 +0100
            Re: Script to parse a text file and extract unique email addresses Andreas Kohlbach <aug14.8.ankman@spamgourmet.com> - 2014-08-21 18:03 -0400
        Re: Script to parse a text file and extract unique email addresses Bill Marcum <bill.marcum57@yahoo.com> - 2014-08-21 03:34 -0400
          Re: Script to parse a text file and extract unique email addresses The Natural Philosopher <tnp@invalid.invalid> - 2014-08-21 12:12 +0100
          Re: Script to parse a text file and extract unique email addresses Chris Davies <chris-usenet@roaima.co.uk> - 2014-08-21 12:12 +0100
            Re: Script to parse a text file and extract unique email addresses The Natural Philosopher <tnp@invalid.invalid> - 2014-08-21 14:22 +0100
              Write it in C... (Was: Script to parse a text file and extract unique email addresses) gazelle@shell.xmission.com (Kenny McCormack) - 2014-08-21 13:42 +0000
                Re: Write it in C... (Was: Script to parse a text file and extract unique email addresses) The Natural Philosopher <tnp@invalid.invalid> - 2014-08-21 15:23 +0100
                Re: Write it in C... Rich <rich@example.invalid> - 2014-08-21 16:17 +0000
                Re: Write it in C... The Natural Philosopher <tnp@invalid.invalid> - 2014-08-21 18:42 +0100
                Re: Write it in C... William Unruh <unruh@invalid.ca> - 2014-08-21 18:38 +0000
        Re: Script to parse a text file and extract unique email addresses Loki Harfagr <l0k1@thedarkdesign.free.fr.INVALID> - 2014-09-24 13:18 +0000
          Re: Script to parse a text file and extract unique email addresses Doug Laidlaw <laidlaws@hotkey.net.au> - 2014-09-25 01:49 +1000
            Re: Script to parse a text file and extract unique email addresses Loki Harfagr <l0k1@thedarkdesign.free.fr.INVALID> - 2014-09-25 09:34 +0000
  Re: Script to parse a text file and extract unique email addresses Mladen Gogala <gogala.mladen@gmail.com> - 2014-09-29 00:17 +0000
    Re: Script to parse a text file and extract unique email addresses Rich <rich@example.invalid> - 2014-09-29 00:52 +0000
      Re: Script to parse a text file and extract unique email addresses gazelle@shell.xmission.com (Kenny McCormack) - 2014-09-29 01:13 +0000
    Re: Script to parse a text file and extract unique email addresses Tim Watts <tw_usenet@dionic.net> - 2014-09-29 07:40 +0100
    Re: Script to parse a text file and extract unique email addresses Eric Pozharski <whynot@pozharski.name> - 2014-09-29 09:52 +0300

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