Hi, Volker,

Volker Nitsch wrote:
> 
> Know only oold macs. there each file knows its programm,
> there is no distinction by type...
> 

Both creator and type information have been in the MacOS file
system at least since the mid-80's, if not from the very
beginning.  I did Mac development in that time frame (e.g.,
GUI-driven barcode label printing software), and used the file
type distinction (e.g., to handle label design files differently
from content data files).

As I mentioned earlier in this thread, this information was not
exposed to the end user directly.  However, it was detectable,
e.g. when MacWrite saved a document as "TEXT" versus native
MacWrite format, a different icon was used for the document.

-jn-

-- 
; Joel Neely                             joeldotneelyatfedexdotcom
REBOL [] do [ do func [s] [ foreach [a b] s [prin b] ] sort/skip
do function [s] [t] [ t: "" foreach [a b] s [repend t [b a]] t ] {
| e s m!zauafBpcvekexEohthjJakwLrngohOqrlryRnsctdtiub} 2 ]
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