Re: ?EXEC

From	Bernd Paysan <bernd.paysan@gmx.de>
Newsgroups	comp.lang.forth
Subject	Re: ?EXEC
Date	2012-06-24 23:53 +0200
Organization	1&1 Internet AG
Message-ID	<js829i$e36$1@online.de> (permalink)
References	(5 earlier) <2012Jun20.130929@mips.complang.tuwien.ac.at> <psudndKgZqQjgnnSnZ2dnUVZ8j-dnZ2d@supernews.com> <2012Jun22.131256@mips.complang.tuwien.ac.at> <js2hc5$1ka$1@online.de> <2012Jun24.165823@mips.complang.tuwien.ac.at>

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Anton Ertl wrote:

> Bernd Paysan <bernd.paysan@gmx.de> writes:
>>So far, we have a few solutions to this problem, with words like TO
>>and S" being the hardest:
> [...]
>>* Dual-xt solutions (whether dual-wordlist or a special flag in the
>>header like in Gforth) result in a state-smart FIND, which just moves
>>the problem around.
> 
> Not in the least.  With these solutions the GEN-FOO example and S" and
> TO work as described in the standard, so the problem has not just
> moved around, it has been solved.

By now creating a problem in FIND.  And as the discussion about a 
replacement of FIND have shown, moving the problem there does not make 
the situation easier.

> But if you insist on keeping FIND, having FIND check
> STATE is much less problematic in my experience than more typical
> STATE-smartness.

I've no problems with the more typical STATE-smartness, either.  I just 
know that the state is not just there for fun, but that compilation 
state means when I want to compile something, I have to have STATE=true.  
I need it to find the right token (if I use FIND), and I need it to get 
the right reaction (if I use POSTPONE).

You said, you don't use FIND in your code, but I do.  I've considered 
rewriting my OOF to use Gforth's double tokens, but immediately realized 
that this solves exactly nothing, because my OOF first uses FIND and 
then EXECUTE or COMPILE, (depending on the flag) - all on potentially 
state smart words, because I need quite a bunch of them.  Either I have 
the problem in FIND, or in EXECUTing the word, but the problem remains 
the same.

> Anyway, for stuff like the GEN-FOO example such a system is actually
> not necessary.  A traditional-style single-xt-with-immediate system
> can work for that, too.  But ?COMP will break it.  So ?COMP is the
> problem.

?COMP is a very traditional way of doing this check.  Header flags are 
more modern.  Header flags have their own set of problems (particularly 
that the xt comes without them).

>>* Intelligent COMPILE, solutions, which however "violate" the spec of
>>COMPILE,
> 
> A COMPILE, that violates (not just "violates") the spec of COMPILE, is
> not intelligent, but broken.

IMHO the spec of COMPILE, is broken.  It doesn't really fit to what 
Mitch Bradley said it should fit to - his user-written text interpreter.  
It fits in a particular classical implementation, with the FIND we have 
now.

-- 
Bernd Paysan
"If you want it done right, you have to do it yourself"
http://bernd-paysan.de/

Thread

?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-15 20:40 +0000
  Re: ?EXEC "Ed" <invalid@nospam.com> - 2012-06-16 11:14 +1000
  Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-16 07:10 -0700
    Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-17 03:01 +0000
      Re: ?EXEC "Ed" <invalid@nospam.com> - 2012-06-17 13:36 +1000
      Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-17 12:27 +0000
        Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-17 20:45 +0000
          Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-18 13:31 +0000
            Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-18 18:29 +0000
              Re: ?EXEC "Elizabeth D. Rather" <erather@forth.com> - 2012-06-18 08:01 -1000
              Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-19 14:09 +0000
                Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-19 10:51 -0500
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-19 16:04 +0000
                Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-19 12:45 -0500
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-20 10:50 +0000
                Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-20 07:10 -0500
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-20 12:47 +0000
                Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-19 22:52 +0000
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-20 10:59 +0000
                Defining Compilation Behaviour - was Re: ?EXEC JennyB <jennybrien@googlemail.com> - 2012-06-21 04:58 -0700
                Re: Defining Compilation Behaviour - was Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-21 15:44 +0000
            Re: ?EXEC Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-19 02:11 +0200
              Re: ?EXEC "Elizabeth D. Rather" <erather@forth.com> - 2012-06-18 14:45 -1000
                Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-19 10:48 +0000
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-19 15:53 +0000
                Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-19 23:00 +0000
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-20 11:09 +0000
                Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-20 07:39 -0700
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-20 15:32 +0000
                Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-21 11:24 -0700
                Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-20 22:43 +0000
                Re: ?EXEC Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-21 21:39 +0200
                Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-22 02:33 -0500
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-22 11:12 +0000
                Re: ?EXEC Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-22 21:34 +0200
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-24 14:58 +0000
                Re: ?EXEC Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-24 23:53 +0200
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-19 15:43 +0000
              Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-19 14:52 +0000
                Re: ?EXEC Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-21 22:15 +0200
                Re: ?EXEC stephenXXX@mpeforth.com (Stephen Pelc) - 2012-06-22 10:32 +0000
                Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-22 05:49 -0500
                Alternatives to S" and TO (was: ?EXEC) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-22 15:19 +0000
                Re: Alternatives to S'' and TO mhx@iae.nl (Marcel Hendrix) - 2012-06-22 20:37 +0200
                Re: Alternatives to S'' and TO anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-23 14:46 +0000
                Re: Alternatives to S" and TO (was: ?EXEC) BruceMcF <agila61@netscape.net> - 2012-06-22 12:32 -0700
                Re: Alternatives to S" and TO Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-23 03:07 -0500
                Re: Alternatives to S" and TO anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-23 13:32 +0000
                Re: Alternatives to S" and TO Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-24 08:50 -0500
                Re: Alternatives to S" and TO anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-24 15:39 +0000
                Re: Alternatives to S" and TO Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-25 04:49 -0500
                Re: Alternatives to S" and TO BruceMcF <agila61@netscape.net> - 2012-06-25 07:17 -0700
                Re: Alternatives to S" and TO Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-25 10:13 -0500
                Re: Alternatives to S" and TO (was: ?EXEC) Alex McDonald <blog@rivadpm.com> - 2012-06-23 16:01 -0700
                Re: Alternatives to S" and TO (was: ?EXEC) Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-24 01:59 +0200
                Re: Alternatives to S" and TO (was: ?EXEC) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-24 13:21 +0000
                Re: Alternatives to S" and TO (was: ?EXEC) Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-24 16:50 +0000
                Re: Alternatives to S" and TO (was: ?EXEC) Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-27 23:30 +0200
                Re: Alternatives to S" and TO (was: ?EXEC) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-24 13:15 +0000
                Re: Alternatives to S" and TO (was: ?EXEC) Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-24 16:47 +0000
                Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-22 20:34 +0000
                Re: ?EXEC Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-22 21:46 +0200
                Re: ?EXEC "Elizabeth D. Rather" <erather@forth.com> - 2012-06-22 10:16 -1000
                Re: ?EXEC Bernd Paysan <bernd.paysan@gmx.de> - 2012-06-22 22:43 +0200
                Re: ?EXEC "Elizabeth D. Rather" <erather@forth.com> - 2012-06-22 11:18 -1000
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-23 13:50 +0000
      Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-17 10:41 -0700
  Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-17 12:52 +0000
    Re: ?EXEC "Elizabeth D. Rather" <erather@forth.com> - 2012-06-17 08:03 -1000
      Re: ?EXEC "Ed" <invalid@nospam.com> - 2012-06-18 15:06 +1000
        Re: ?EXEC "Elizabeth D. Rather" <erather@forth.com> - 2012-06-17 20:31 -1000
          Re: ?EXEC "Ed" <invalid@nospam.com> - 2012-06-21 13:07 +1000
            Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-21 14:00 +0000
              Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-21 07:51 -0700
              Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-21 15:39 +0000
                Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-21 20:28 +0000
                Re: ?EXEC "Ed" <invalid@nospam.com> - 2012-06-28 14:22 +1000
                Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-28 04:00 -0500
            Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-21 16:09 +0000
            Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-21 11:51 -0500
              Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-21 11:21 -0700
                Re: ?EXEC Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-06-22 01:42 -0500
                Re: ?EXEC "Elizabeth D. Rather" <erather@forth.com> - 2012-06-21 21:47 -1000
                Re: ?EXEC anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-06-22 15:10 +0000
                Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-22 20:39 +0000
                Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-22 12:47 -0700
                Re: ?EXEC BruceMcF <agila61@netscape.net> - 2012-06-22 12:53 -0700
        Re: ?EXEC stephenXXX@mpeforth.com (Stephen Pelc) - 2012-06-21 08:39 +0000
          Re: ?EXEC "Ed" <invalid@nospam.com> - 2012-06-23 15:36 +1000
            Re: ?EXEC stephenXXX@mpeforth.com (Stephen Pelc) - 2012-06-23 10:58 +0000
              Re: ?EXEC "Ed" <invalid@nospam.com> - 2012-06-25 14:26 +1000
                Re: ?EXEC stephenXXX@mpeforth.com (Stephen Pelc) - 2012-06-25 08:37 +0000
      Re: ?EXEC Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-06-18 10:34 +0000
  Re: ?EXEC Coos Haak <chforth@hccnet.nl> - 2012-06-18 17:47 +0200
    Re: ?EXEC Coos Haak <chforth@hccnet.nl> - 2012-06-18 17:49 +0200
  Re: ?EXEC jacko <jackokring@gmail.com> - 2012-06-22 15:43 -0700

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