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Re: Quotations [Was: return address manipulation]

From anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups comp.lang.forth
Subject Re: Quotations [Was: return address manipulation]
Date 2012-01-03 09:08 +0000
Organization Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID <2012Jan3.100839@mips.complang.tuwien.ac.at> (permalink)
References (6 earlier) <tumdnX2UnehmW2DTnZ2dnUVZ_r2dnZ2d@supernews.com> <2011Dec31.151928@mips.complang.tuwien.ac.at> <BfqdnfewGq4e12LTnZ2dnUVZ_t2dnZ2d@supernews.com> <2012Jan2.144719@mips.complang.tuwien.ac.at> <YZmdnSKlN8yJRJzSnZ2dnUVZ_qWdnZ2d@supernews.com>

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Andrew Haley <andrew29@littlepinkcloud.invalid> writes:
>Anton Ertl <anton@mips.complang.tuwien.ac.at> wrote:
>> Andrew Haley <andrew29@littlepinkcloud.invalid> writes:
>>>Anton Ertl <anton@mips.complang.tuwien.ac.at> wrote:
>>>> Andrew Haley <andrew29@littlepinkcloud.invalid> writes:
>>>>>Anton Ertl <anton@mips.complang.tuwien.ac.at> wrote:
>>>>>> Andrew Haley <andrew29@littlepinkcloud.invalid> writes:
>>>>>>> and of whether the closure holds references to the locals in
>>>>>>>enclosing scope or copies of their values, i.e. what the action of TO
>>>>>>>on a captured local should be.
>>>>>> 
>>>>>> Why should it hold copies (apart from implementation considerations)?
>>>>>
>>>>>I think it makes more sense.  It doesn't make any sense to have
>>>>>multiple "locals" that refer to a single value.
>>>> 
>>>> I did not suggest that several locals refer to the same value.
>>>
>>>Surely you did.  In something like
>>>
>>>: z { x }   [: ( - n)   x 1+ to x  x ;] ;
>>>
>>>defer action
>>>z is action
>> 
>> There's just one local here.
>
>No.  There may be many active instances of z, and all of their
>instances of x refer to the same value.

In this example, there is only one local: X.  And it is instantiated
only once (because Z is only called once), and it created one closure
(stored in ACTION).  And that closure is not invoked at all.

I don't know what you mean with "active instances" (closure
executions?), but whatever it is, there is certainly not more than one
of them in this example.

>> It's still not clear to me which operation creates the copy.  Do you
>> mean that you create a copy on executing a closure (when you enter the
>> closure)q?
>
>You have to either create a bunch of references to the enclosing local
>frame or a bunch of copies of the values.  You have to do that when
>the closure is created, whether copying the values or creating some
>references to them.

So you would do the copies on closure creation.  That does not give
you the re-entrancy guarantee you desire, because the same closure
would refer to the same copy of the local, and the closure can be
executed several times, possibly at the same time:

: z { x } [: ( xt -- n ) execute x 1+ to x x . ;] ;
z constant w
:noname ; ['] w ['] w execute

Here you have one closure, w (i.e, only one copy of x) and two nested
executions.

>In what sense is one closure "ordinary" and one not?  In something
>like pure LISP (or indeed, the lambda calculus) you only have values.

It's what languages with closures have done for decades, starting with
Scheme and lexically scoped LISPs.

Also, looking at Wikipedia, it describes closures to have state
<http://en.wikipedia.org/wiki/Closure_(computer_science)#State_representation>.

It also mentions concurrent programming in <http://en.wikipedia.org/wiki/Closure_(computer_science)#Implementation_and_theory>:

|An important issue for closures in concurrent programming languages is
|whether the variables in a closure can be updated and, if so, how
|these updates can be synchronized.

>It becomes impossible to reason about locals once a closure
>has been created because they are no longer local.

It is entirely possible to reason about locals once a closure has been
created.  In particular:

For a given local, if there is no TO to that local in a closure that
captures that local, there cannot be a race condition involving that
local.

Since the scope of locals is very limited, you only need to look at
one definition to make use of that rule.  And if you program such that
that rule applies to every local, you can still do everything that you
can do with your implicitly-copying locals.

For stateful closures, you can reason about them just like you can
reason about stateful objects; it's actually probably easier, because
the scope of locals is more limited than the scope of instance
variables in most object-oriented languages (there are no "public"
locals).

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
   EuroForth 2011: http://www.euroforth.org/ef11/

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Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-03 19:07 +0000
  Re: Memoizing recursive words "A. K." <akk@nospam.org> - 2011-12-04 13:21 +0100
    Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-04 14:20 +0000
      Re: Memoizing recursive words Josh Grams <josh@qualdan.com> - 2011-12-04 16:03 +0000
        Re: Memoizing recursive words "A. K." <akk@nospam.org> - 2011-12-04 17:25 +0100
        Re: Memoizing recursive words BruceMcF <agila61@netscape.net> - 2011-12-04 10:51 -0800
          Re: Memoizing recursive words "Elizabeth D. Rather" <erather@forth.com> - 2011-12-04 12:50 -1000
            Re: Memoizing recursive words BruceMcF <agila61@netscape.net> - 2011-12-04 15:40 -0800
        Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-05 11:17 +0000
      Re: Memoizing recursive words "Elizabeth D. Rather" <erather@forth.com> - 2011-12-04 08:24 -1000
        Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-04 19:14 +0000
          Re: Memoizing recursive words BruceMcF <agila61@netscape.net> - 2011-12-04 12:09 -0800
            Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-05 04:00 +0000
              Re: Memoizing recursive words BruceMcF <agila61@netscape.net> - 2011-12-07 12:41 -0800
  Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-05 11:04 -0600
    Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-06 07:24 +0000
      Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-06 04:02 -0600
    Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-06 08:03 +0000
      Re: Memoizing recursive words stephenXXX@mpeforth.com (Stephen Pelc) - 2011-12-06 10:46 +0000
        Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-06 04:54 -0600
          Re: Memoizing recursive words Hans Bezemer <thebeez@xs4all.nl> - 2011-12-08 00:08 +0100
        Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-06 12:36 +0000
          Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-06 10:28 -0600
            Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-06 16:32 +0000
              Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-06 10:40 -0600
                Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-06 16:51 +0000
                Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-06 12:03 -0600
                Re: Memoizing recursive words Hans Bezemer <thebeez@xs4all.nl> - 2011-12-07 23:55 +0100
            Re: Memoizing recursive words Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-07 01:06 +0100
              Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-07 03:37 -0600
                Re: Memoizing recursive words stephenXXX@mpeforth.com (Stephen Pelc) - 2011-12-07 10:36 +0000
                Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-07 06:23 -0600
                Re: Memoizing recursive words stephenXXX@mpeforth.com (Stephen Pelc) - 2011-12-07 13:50 +0000
                Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-07 11:49 -0600
                Re: Memoizing recursive words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-08 15:36 +0000
                Re: Memoizing recursive words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-08 16:15 +0000
                Re: Memoizing recursive words Albert van der Horst <albert@spenarnc.xs4all.nl> - 2011-12-10 17:23 +0000
                Re: Memoizing recursive words stephenXXX@mpeforth.com (Stephen Pelc) - 2011-12-10 17:34 +0000
                Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-10 11:43 -0600
                return address manipulation (was: Memoizing recursive words) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-07 13:29 +0000
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-07 11:55 -0600
                Re: return address manipulation Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-08 00:03 +0100
                Re: return address manipulation BruceMcF <agila61@netscape.net> - 2011-12-07 15:11 -0800
                Re: return address manipulation Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-08 01:52 +0100
                Re: return address manipulation Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-12-08 11:12 +0000
                Re: return address manipulation Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-08 18:04 +0100
                Re: return address manipulation anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-08 15:51 +0000
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-08 12:17 -0600
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-13 13:07 -0600
                Re: return address manipulation Alex McDonald <blog@rivadpm.com> - 2011-12-13 13:37 -0800
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-14 03:45 -0600
                Re: return address manipulation Alex McDonald <blog@rivadpm.com> - 2011-12-14 01:58 -0800
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-14 04:09 -0600
                Re: return address manipulation "Elizabeth D. Rather" <erather@forth.com> - 2011-12-14 10:43 -1000
                Re: return address manipulation Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-14 14:08 +0100
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-14 09:18 -0600
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-14 09:48 -0600
                Re: return address manipulation Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-14 23:24 +0100
                Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-15 04:50 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 07:45 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-15 15:48 +0000
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 08:08 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-15 10:44 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 09:07 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-15 17:16 +0000
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 09:44 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-15 17:55 +0000
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 10:13 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-16 17:24 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-15 11:25 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 09:40 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-15 12:11 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 19:01 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-16 03:14 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-16 07:54 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-16 16:58 +0000
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-17 09:58 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-19 14:36 +0000
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-19 12:49 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-20 02:55 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-20 06:34 -0800
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 10:22 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-15 12:44 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-16 17:27 +0000
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 09:33 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-15 12:52 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-15 11:07 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-16 03:16 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-16 08:10 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-16 12:38 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-16 08:13 -0800
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-16 12:43 -0600
                Re: Quotations [Was: return address manipulation] Sieur de Bienville <morrimichael@gmail.com> - 2011-12-17 15:35 -0800
                Re: Quotations [Was: return address manipulation] Roelf Toxopeus <rt4all@notthis.hetnet.nl> - 2011-12-19 20:40 +0100
                Re: Quotations [Was: return address manipulation] Sieur de Bienville <morrimichael@gmail.com> - 2011-12-19 13:41 -0800
                Re: Quotations [Was: return address manipulation] Mark Wills <markrobertwills@yahoo.co.uk> - 2011-12-27 07:30 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-27 16:21 +0000
                Re: Quotations [Was: return address manipulation] Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-27 20:55 +0100
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-27 14:42 -0600
                Re: Quotations [Was: return address manipulation] Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-27 22:58 +0100
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-27 16:43 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-30 12:00 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-30 06:09 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-30 13:23 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-30 08:13 -0600
                Re: Quotations [Was: return address manipulation] mhx@iae.nl (Marcel Hendrix) - 2011-12-30 16:48 +0200
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-30 16:36 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2011-12-30 15:16 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-31 14:00 +0000
                Re: Quotations [Was: return address manipulation] Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-01-01 12:22 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-01 06:09 -0600
                Re: Quotations [Was: return address manipulation] mhx@iae.nl (Marcel Hendrix) - 2012-01-01 14:17 +0200
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-01 09:50 -0600
                Re: Quotations [Was: return address manipulation] Bernd Paysan <bernd.paysan@gmx.de> - 2012-01-01 18:15 +0100
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-01 11:48 -0600
                Re: Quotations [Was: return address manipulation] Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-01-02 11:19 +0000
                Re: Quotations [Was: return address manipulation] mhx@iae.nl (Marcel Hendrix) - 2012-01-01 14:02 +0200
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-01 09:37 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-02 14:30 +0000
                Re: Quotations [Was: return address manipulation] Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-01-03 13:28 +0000
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2012-01-01 13:35 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-02 14:14 +0000
                Re: Quotations [Was: return address manipulation] Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-01-03 12:04 +0000
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-31 14:19 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-31 11:46 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-02 13:47 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-02 10:19 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-03 09:08 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-03 04:47 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-03 16:55 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-03 11:28 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-04 14:52 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-04 09:54 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-04 17:28 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-04 12:10 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2012-01-03 10:09 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-04 17:14 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-04 11:26 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-04 17:49 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-04 12:11 -0600
                Re: Quotations [Was: return address manipulation] BruceMcF <agila61@netscape.net> - 2012-01-04 12:59 -0800
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-05 16:46 +0000
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-03 16:34 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-03 11:40 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-04 15:03 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-01-04 12:01 -0600
                Re: Quotations [Was: return address manipulation] Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2012-01-04 21:02 +0000
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-01-05 16:38 +0000
                Re: Quotations [Was: return address manipulation] Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2012-01-07 14:27 +0000
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-30 11:33 +0000
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-30 11:53 +0000
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-16 17:18 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-16 13:16 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-19 15:01 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-15 10:40 -0600
                Re: Quotations [Was: return address manipulation] anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-22 16:21 +0000
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-22 11:40 -0600
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-26 13:01 -0600
                Re: Quotations [Was: return address manipulation] Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-27 03:54 -0600
                Re: Quotations [Was: return address manipulation] Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-15 20:11 +0100
                Quotations (was: return address manipulation) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-14 15:27 +0000
                Re: Quotations Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-14 09:50 -0600
                Re: Quotations Bernd Paysan <bernd.paysan@gmx.de> - 2011-12-14 22:38 +0100
                Re: Quotations Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-12-14 23:03 +0000
                Re: Quotations anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-15 15:56 +0000
                Re: return address manipulation stephenXXX@mpeforth.com (Stephen Pelc) - 2011-12-09 14:48 +0000
                Re: return address manipulation anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-09 16:35 +0000
                Re: return address manipulation BruceMcF <agila61@netscape.net> - 2011-12-09 10:18 -0800
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-09 12:36 -0600
                Re: return address manipulation BruceMcF <agila61@netscape.net> - 2011-12-09 12:07 -0800
                Re: return address manipulation anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-10 12:37 +0000
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-10 11:49 -0600
                Re: return address manipulation BruceMcF <agila61@netscape.net> - 2011-12-10 10:06 -0800
                Re: return address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-10 12:37 -0600
                Re: return address manipulation BruceMcF <agila61@netscape.net> - 2011-12-10 11:28 -0800
                Re: return address manipulation "Elizabeth D. Rather" <erather@forth.com> - 2011-12-09 08:39 -1000
                Re: return address manipulation anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-10 12:34 +0000
                Re: return address manipulation BruceMcF <agila61@netscape.net> - 2011-12-10 06:39 -0800
                Re: return address manipulation anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-11 11:30 +0000
          Re: Memoizing recursive words stephenXXX@mpeforth.com (Stephen Pelc) - 2011-12-06 17:18 +0000
            Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-07 14:30 +0000
              Re: Memoizing recursive words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-07 15:33 +0000
                Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-07 17:09 +0000
                Re: Memoizing recursive words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-12-07 17:26 +0000
      Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-07 12:08 -0600
        Re: Memoizing recursive words Arnold Doray <thinksquared@gmail.com> - 2011-12-08 00:05 +0000
          Re: Memoizing recursive words Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-12-08 03:37 -0600

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