#!/usr/bin/perl

use strict;
use warnings;

while (split(/[, ]+/, <DATA>))
{
  chomp;
  print "'$_'\n";
}

__DATA__
me@here.com
those@there.com  others@there.com
you@there.com,them@there.com

[download]

Outputs: 

Use of uninitialized value $_ in scalar chomp at ./pm11137286.pl line 
+8, <DATA> line 1.
Use of uninitialized value $_ in concatenation (.) or string at ./pm11
+137286.pl line 9, <DATA> line 1.
''
Use of uninitialized value $_ in scalar chomp at ./pm11137286.pl line 
+8, <DATA> line 2.
Use of uninitialized value $_ in concatenation (.) or string at ./pm11
+137286.pl line 9, <DATA> line 2.
''
Use of uninitialized value $_ in scalar chomp at ./pm11137286.pl line 
+8, <DATA> line 3.
Use of uninitialized value $_ in concatenation (.) or string at ./pm11
+137286.pl line 9, <DATA> line 3.
''
Use of uninitialized value in split at ./pm11137286.pl line 9, <DATA> 
+line 3.

[download]

You probably want: 

#!/usr/bin/perl

use strict;
use warnings;

for (map { split /[, ]+/ } <DATA>)
{
  chomp;
  print "'$_'\n";
}

__DATA__
me@here.com
those@there.com  others@there.com
you@there.com,them@there.com

[download]

In reply to Re: Splitting in while loop by tybalt89
in thread Splitting in while loop by tel2

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.