This example...
----- 
#!/usr/bin/perl -w
use strict;

my %commas = (
    'notalot'               => 1,
    'england,rugby'         => 1,
    'chicken,egg,duck,feet' => 1,

    ',southampton'          => 0,
    'bristol,'              => 0,
    'iran,,canada,france'   => 0,
);

foreach my $key (keys %commas)
{
    unless (($key =~ /^,|,,|,$/))
    {
        print "PASS";
    }
    else
    {
        print "FAIL";
    }
    print  ": $key\n";
}

[download]
----
... seems to work for me. This was it's output: 
FAIL: bristol,
PASS: notalot
PASS: england,rugby
FAIL: iran,,canada,france
PASS: chicken,egg,duck,feet
FAIL: ,southampton

[download]

In reply to Re: regex: only want [a-zA-Z] and comma chars in a string by mshiltonj
in thread regex: only want [a-zA-Z] and comma chars in a string by heezy

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