🚀 go-pugleaf

In article <philnaz-0108951016170001@ppp-nyc-3-1.ios.com>,
Phil Nasadowski <philnaz@tribeca.ios.com> wrote:
>In article <DCC5GG.92M@ssbunews.ih.att.com>, varney@ihgp2.ih.att.com (Al
>Varney) wrote:
>
>
>>    Similar questions can be asked about the Mac, leading into the fascinating
>> world of the Resource Manager and the strangeness of Application IDs rather
>> than PATHs/file-name being the Finder's way to select programs for
>> execution.  So that explains problems with running applications from
>> a floppy without the Finder first "seeing" the application.
>> 
>
>What problems?  I pop floppies  with Apps on them all the time into other
>Macs, run the apps off disk, and have no problem with Finder "seeing" the
>application, it mearly sees the type as being APPL, and looks for the CODE
>resource and rund the program.  I've never had a problem like that on a
>Mac when I run an applicationm from a floppy.

   Maybe I was doing something wrong.  Take a disk with a file associated
with an application (say a text file associated with the "emacs" editor).
Put the "emacs" editor on "EMACS Disk 2".  Put the text file on "EMACS Disk 1".
Take the floppies to a Mac that's never seen EMACS, and plug in "EMACS Disk 1".
Open the text file on Disk 1.  Don't you get "unknown application" or
"application unknown" processing?

   On the Amiga, you just put "EMACS Disk 2:emacs" or some such in
the Icon associated with the text file.  Workbench will show a requester:
"please insert 'EMACS Disk 2' in any drive".  Stick in the floppy and the
editor loads.  The requester will go away automatically, unless you decide
to cancel the request.

   If EMACS is later loaded into a hard drive directory, a simple
"assign 'EMACS Disk 2:' drive1:utilities.public/bin"
will assure that opening the text file on Disk 1 will now load EMACS from
the hard drive directory named "drive1:utilities.public/bin".

   I'm not saying the Mac way doesn't have some good advantages -- it was just
difficult to follow the trail left in the "Inside MacIntosh" volumes.
I never found a straight-forward explanation of how Finder located the
executable from an APPL ID/version.  Only after I figured out that the
Desktop was a "global directory" of information somewhat independent of the
File System did it begin to make some sense.

   So, I never did figure out how to have two copies of the same application
(stored in two different directories) and force the Finder to pick a specific
one when I opened a data file.  Does the Finder use the last one loaded
or the first one?  If I copy one application to another directory, does
that operation now link the copied version with the Desktop?  And what
part of Inside Mac. would tell me the answers?

Al Varney