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Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc

From anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups comp.lang.forth
Subject Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc
Date 2016-08-11 11:58 +0000
Organization Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID <2016Aug11.135855@mips.complang.tuwien.ac.at> (permalink)
References (5 earlier) <1e5face5-63f8-4811-83b7-5355a7f99f46@googlegroups.com> <2016Aug8.103457@mips.complang.tuwien.ac.at> <3aae28c2-6767-4ba6-89f9-f5d6aa93eeaa@googlegroups.com> <2016Aug9.155313@mips.complang.tuwien.ac.at> <0427dca0-465f-40d7-9673-8e19eb9df575@googlegroups.com>

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hughaguilar96@gmail.com writes:
>On Tuesday, August 9, 2016 at 7:08:55 AM UTC-7, Anton Ertl wrote:
>> hughaguilar96@gmail.com writes:
>> >On Monday, August 8, 2016 at 2:05:38 AM UTC-7, Anton Ertl wrote:
>> >> There is no provision in the standard for FIND giving an error on
>> >> valid input.
>> >
>> >According to the ANS-Forth document in the entry for IF (section 6.1.170=
>0):=3D
>> > "Interpretation semantics for this word are undefined." The ANS-Forth d=
>ocu=3D
>> >ment has a section (4.1.2) with the ominous heading: "Ambiguous Conditio=
>ns.=3D
>> >" One of the many ambiguous conditions is: "attempting to obtain the exe=
>cut=3D
>> >ion token, (e.g., with 6.1.0070 ', 6.1.1550 FIND, etc.) of a definition =
>wit=3D
>> >h undefined interpretation semantics."
>>=20
>> Good catch.  Interestingly, the definition of FIND does not mention
>> that, and given the return values that FIND can produce, and the way
>> that FIND is used, I don't think it makes sense. =20
>
>Well, I'm glad that you are admitting that FIND in ANS-Forth is broken. I w=
>ould use the term "sabotaged" because there is no point to making FIND not =
>work except to prevent the programmer from writing an outer-interpreter.
>
>It is disingenious to describe this as a "good catch" in the year 2016. You=
> yourself pointed this problem out to me in 2009, and you provided the way =
>to fix it. This was in this thread:
>https://groups.google.com/forum/#!topic/comp.lang.forth/wP5nw1ClzsM%5B1-25%=
>5D

FIND does not occur in that posting.

I dimly remember you pointing out that ambiguous condition at another
occasion, though, but obviously that has not stuck in my memory
enough, or I would not have written the sentence above.

- 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 2016: http://www.euroforth.org/ef16/

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The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc JUERGEN <epldfpga@aol.com> - 2016-08-02 09:33 -0700
  Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc Paul Rubin <no.email@nospam.invalid> - 2016-08-02 10:35 -0700
    Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc JUERGEN <epldfpga@aol.com> - 2016-08-02 11:46 -0700
      Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-03 00:04 -0700
        Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-04 00:41 -0700
          Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc rickman <gnuarm@gmail.com> - 2016-08-04 09:35 -0400
            Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-04 10:08 -0500
  Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc Brad Eckert <hwfwguy@gmail.com> - 2016-08-02 15:45 -0700
    Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-02 19:56 -0500
      Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc JUERGEN <epldfpga@aol.com> - 2016-08-02 22:43 -0700
      Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-03 00:12 -0700
        Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-03 02:42 -0500
          Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-03 10:41 -0700
            Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-03 12:56 -0500
            Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-03 13:09 -0500
              Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc rickman <gnuarm@gmail.com> - 2016-08-03 14:15 -0400
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Richard Owlett <rowlett@cloud85.net> - 2016-08-03 18:00 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-05 20:35 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-06 00:16 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-06 16:58 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-06 18:01 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-06 21:28 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-06 19:46 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-06 22:54 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Julian Fondren <julian.fondren@gmail.com> - 2016-08-06 21:39 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Paul Rubin <no.email@nospam.invalid> - 2016-08-06 22:28 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-06 23:49 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-07 02:32 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Paul Rubin <no.email@nospam.invalid> - 2016-08-07 01:06 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-07 07:05 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-07 13:01 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-07 16:02 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-07 14:20 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc franck.bensusan@gmail.com - 2016-08-08 03:13 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-08 11:25 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Paul Rubin <no.email@nospam.invalid> - 2016-08-07 13:55 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-07 16:22 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-07 15:03 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Håkan Thörngren <hth313@gmail.com> - 2016-08-07 23:02 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc "Elizabeth D. Rather" <erather@forth.com> - 2016-08-07 21:10 -1000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-09 00:36 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-08 09:06 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-07 09:33 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Håkan Thörngren <hth313@gmail.com> - 2016-08-07 11:31 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-07 12:35 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-07 16:11 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Håkan Thörngren <hth313@gmail.com> - 2016-08-07 22:43 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Håkan Thörngren <hth313@gmail.com> - 2016-08-07 22:48 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-08 08:34 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-08 23:59 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-09 13:53 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-10 19:56 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Julian Fondren <julian.fondren@gmail.com> - 2016-08-11 00:33 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-11 11:58 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-11 13:16 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc stephen@mpeforth.com (Stephen Pelc) - 2016-08-11 23:36 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-11 20:49 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-28 11:20 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-28 17:33 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-28 21:10 -0500
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-28 22:49 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-12 23:10 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Julian Fondren <julian.fondren@gmail.com> - 2016-08-06 20:20 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-07 09:58 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Julian Fondren <julian.fondren@gmail.com> - 2016-08-07 11:08 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-08 09:10 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-08 10:47 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc JennyB <jennybrien@googlemail.com> - 2016-08-08 13:44 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc mhx@iae.nl - 2016-08-08 11:32 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-09 06:13 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-09 06:19 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc mhx@iae.nl - 2016-08-09 02:54 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-09 10:22 +0000
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc lawrencedo99@gmail.com - 2016-08-15 20:33 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-16 10:40 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc lawrencedo99@gmail.com - 2016-08-17 02:21 -0700
                Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-17 11:14 -0700
        Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Roberto Waltman <usenet@rwaltman.com> - 2016-08-03 18:21 -0400
    Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc rickman <gnuarm@gmail.com> - 2016-08-03 02:46 -0400
  Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc endlessboomcapitalism@gmail.com - 2016-08-13 09:51 -0700
    Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc JUERGEN <epldfpga@aol.com> - 2016-08-13 12:18 -0700
      Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc endlessboomcapitalism@gmail.com - 2016-08-14 19:13 -0700
        Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc JUERGEN <epldfpga@aol.com> - 2016-08-15 07:43 -0700
          Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Cecil Bayona <cbayona@cbayona.com> - 2016-08-15 12:34 -0500
            Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc Brad Eckert <hwfwguy@gmail.com> - 2016-08-17 22:08 -0700
              Re: The Fourth Forth eBook in our little series - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-18 15:26 -0700
      Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc endlessboomcapitalism@gmail.com - 2016-08-14 19:18 -0700
      Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc hughaguilar96@gmail.com - 2016-08-15 08:24 -0700
        Re: The Fourth Forth eBook in our little series  - Programming Forth - Stephen Pelc JUERGEN <epldfpga@aol.com> - 2016-08-15 08:31 -0700
          Re: The Fourth Forth eBook in our little series - Programming Forth- Stephen Pelc "WJ" <w_a_x_man@yahoo.com> - 2016-08-19 23:54 +0000
            Re: The Fourth Forth eBook in our little series - Programming Forth- Stephen Pelc JUERGEN <epldfpga@aol.com> - 2016-08-20 01:43 -0700

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