end of standard input character

[Robert Mark Bram]

Hi All!

I have a text field that I am using to gain input from the user in a style
much the same as "standard input". Part of this approach is allowing the
user to indicate "eof" etc for standard input.

Is it
- ctrl+z on a pc
- ctrl+d on *nix.
- what is it for a mac?

Any help would be most appreciated!

Rob