sub wrap {
    my ($s, $wrap) = @_;
    my (@lines, $line);
    
    while (length $s > $wrap) {
        ### Take one extra character so we can see if
        ### we're wrapping inside a word or not
        $line = substr($s, 0, $wrap+1);
        $line =~ s/\s+(\S*)$//;
        push @lines, $line;

        ### Add any word fragments back on
        $s = $1 . substr($s, $wrap);
        $s =~ s/^\s+//;
    }
    push @lines, $s;  ##  Adds the the last of the $s string to @lines
    return join "\n", @lines;
}