ProDOS filetype question

[Dennis Jenkins <dennis@usb.com>]

Hello all,
	ProDOS has some file types that show up as 2 hex digits and some that
show up as three letter abbreviations.  Different prodos disks recognize
different extensions.  I have found a list of all known extensions [1].  

	ex: I have several different versions of ProDOS on floppy, and some
recognize some files while others recognize a different set.  I have the
8 bit prodos that comes with GS/OS 6.0.1 (I assume that was the last
official ProDOS...).  It does not recognize type $e0 (a shrinkit
archive).  Yet when I boot from the shrinkit floppy, that prodos does.

	Does ProDOS distinguish file types using the AUXTYPE info as well?  $5a
is not just for zlink config files, but for many different types of
config files.  I assume that there is a (formal) way to patch ProDOS so
that it will display the symbolic name for a new extension instead of
just the hex digits (when doing a 'cat' for example).  Where can I get a
copy of prodos that recognizes all extensions?  Or, how can I hack
prodos to have all of the types that I use.  I assume that ProDOS would
run out of space if it tried to store the abbreviation for ALL file
types...


1) http://ground.ecn.uiowa.edu/apple2/Technotes/Ftn/FT.!INDEX

-- 
dennis@usb.com                           Universal Savings Bank.

The three most dangerous things are a programmer with a soldering
iron, a manager who codes, and a user who gets ideas.