I think you misunderstood the pod. From what I understand, the snippet above would extract stuff like ##. I think this is the behaviour your want (even note the eval dealy. Since there is only one $@ variable, and all eval calls set it, when you got nested ones, you gotta check $@ inside your eval). Enjoy.

#!/usr/bin/perl -w
use strict;
use Text::Balanced qw (
                        extract_delimited
                        extract_bracketed
                        extract_quotelike
                        extract_codeblock
                        extract_variable
                        extract_tagged
                        extract_multiple
                        gen_delimited_pat
                        gen_extract_tagged
                       );

my $source = 'Hello World, #name#!';
my ($cfml_expr_match, $next);

eval {
$cfml_expr_match = gen_delimited_pat(q{#},q{#});
$next = extract_delimited($source, '#','[^#]+','#');
print "There is only one \$@, so Inside my eval, .. got this: $@\n" if
+ $@;
};

if ($@) {
    print "Hmm.. got this: $@\n";
}
else
{
    print "CFML: $cfml_expr_match\n";
    print "next: $next\n";
}


# some code here...

print "\n";
__END__
CFML: (?:\#(?:[^\#]*(?:(?:\#\#)[^\#]*)*)\#)
next: #name#
## If I use your '#','','#' params, the error i'd get is
inside my eval, Hmm.. got this: Not a delimited pattern, detected at o
+ffset 0
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______crazyinsomniac_____________________________ Of all the things I've lost, I miss my mind the most. perl -e "$q=$_;map({chr unpack qq;H*;,$_}split(q;;,q*H*));print;$q/$q;"