Here's a non-recursive function: 
sub wierd_split (\@@) {
    my $regex = shift;
    local $_  = @_ ? shift : $_;

    my    @res;
   ($res [@res],  $_) = split shift @$regex, $_, 2 while @$regex && le
+ngth;
    push  @res => $_ if length;

    @res
}

print "Got $_\n" for wierd_split @{[':', '::', '\s+']} => 'foo:bar::ba
+z frog';
__END__
Got foo
Got bar
Got baz
Got frog

[download]

Adding all the funny stuff of split, like using it in void context, its third parameter, or captures in the regex is left as an exercise for the reader.

Abigail

In reply to Re: expanding the functionality of split by Abigail-II
in thread expanding the functionality of split by tigervamp

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