[Catalyst] unicode best practices

[Dave Howorth]

Jonathan Rockway wrote:
> Also, read http://www.catalystframework.org/calendar/2006/21 for
> unicode details.

Nice page, thanks. I'm puzzled by one sentence:

  $1, in this example, will contain the first character in the
  string. This intuitive if the string is something like "abcde",
  but it also holds true for a string like ???.

Is '???' supposed to appear like that? If so, I don't understand the
point. If not, is something broken on my end or the server end?

Cheers, Dave