Newsgroups: comp.lang.apl
Path: watmath!watserv1!utgpu!cs.utexas.edu!sdd.hp.com!elroy.jpl.nasa.gov!jato!csi!sam
From: sam@csi.jpl.nasa.gov (Sam Sirlin)
Subject: Re: yet more questions on J
Message-ID: <1992Feb4.192730.2687@csi.jpl.nasa.gov>
Originator: sam@kalessin
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Organization: Jet Propulsion Laboratory, Pasadena, CA
References: <1992Feb3.171845.18367@csi.jpl.nasa.gov> <ROCKWELL.92Feb3232258@socrates.umd.edu>
Date: Tue, 4 Feb 1992 19:27:30 GMT


In article <ROCKWELL.92Feb3232258@socrates.umd.edu>, rockwell@socrates.umd.edu (Raul Deluth Miller-Rockwell) writes:
|> Hmm.. I couldn't find a de-arc-er, so I haven't got to use it on the

I think simtel should have (at least) one.

|> pc yet.  [But on the RS6000, I've got my profile.js set up with this
|> line:
|>    NB.  use  0!:55 ''   to exit
|> because I've got the  )off  habit.]

Aha!  I didn't know about profile.js. It appears that this is
automatically loaded on startup. Great! (guess I paid my $24 too
early). 

|> I think $: refers to the current "tacit function", instead of the
|> current "explicit function".  
Thanks. I'll have to think about that...

|> But note that 'com' gives a domain error
|> when you do
|>    'abc' com 'def' com 'ghi'

Yes, I use it like this:
   a=. com 'abc'
   a=. a com 'def'
   etc...
to add comments to functions, which is more like
( (com 'abc') com 'def') com 'ghi'

-- 
Sam Sirlin
Jet Propulsion Laboratory         sam@kalessin.jpl.nasa.gov

