Following on from davido’s answer: if you want to match only when the string contains no commas, you have to specify that every character is a non-comma; therefore, you need to anchor the regex at the start and end of the string. For example:

#! perl
use strict;
use warnings;

my $regex = qr/ \A [^,]+ \Z /x;
my $var   = "abc,d";
my $flag  = 1 if $var =~ /\G ($regex) /gcx;

print $flag ? '' : 'not ', "matches\n";

[download]

Output:

16:38 >perl 827_SoPW.pl
not matches

16:42 >

[download]

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: Regex to capture every readable character except COMMA by Athanasius
in thread Regex to capture every readable character except COMMA by nehavin

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