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Re: Recognizer proposal

Date 2026-02-11 11:21 +1100
Subject Re: Recognizer proposal
Newsgroups comp.lang.forth
References <2026Feb9.084944@mips.complang.tuwien.ac.at> <nnd$1c958fc8$24a55a72@293ae8f8b50e0c83> <mv19avFqi4mU1@mid.individual.net>
From dxf <dxforth@gmail.com>
Message-ID <698bcb8b$1@news.ausics.net> (permalink)
Organization Ausics - https://newsgroups.ausics.net

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On 11/02/2026 4:48 am, jkn wrote:
> ... 
> I have no skin in this game at all - I am basically an observer of both the language,
> and this newsgroup. But it seems strange to me that in a language that is so
> self-describedly flexible as Forth, the operation of the inner interpreter should
> not itself be open to flexibility.

IIRC recognizers was a c.l.f invention.  Each forth, it was noted, had its own way
of integrating floating-point into the system - fp being an 'optional extension'
of Forth-94.  Typically integration was achieved through hooks the system designer
had purposely built into system.  Forth-94 had already defined how the forth
interpreter should handle fp numbers.  Parsing words F# etc were not an option.

WIBN (wouldn't it be nice) it was argued if these hooks into the interpreter could
be made portable.  It caught the imagination of sufficient users (in forth there's
little distinction between user and system-designer) and the rest is history.
Recognizers were sufficiently complicated prompting more justification than fp (1)
in order to sell it.  It was 'a solution in search of a problem'.  From that came
the idea that forth should be able to parse *anything* - however unlikely or little
used.

(1) While fp integration prompted recognizers, recognizers were never a complete
solution.  Integrating fp into a system often requires more than simply making the
interpreter recognize fp numbers.  System-specific hooks remain.

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Thread

Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-09 07:49 +0000
  Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-10 13:36 +0100
    Re: Recognizer proposal jkn <jkn+nin@nicorp.co.uk> - 2026-02-10 17:48 +0000
      Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-11 11:21 +1100
        Re: Recognizer proposal jkn <jkn+nin@nicorp.co.uk> - 2026-02-11 09:05 +0000
          Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-11 12:46 +0100
          Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-11 13:36 +0100
            Re: Recognizer proposal jkn <jkn+nin@nicorp.co.uk> - 2026-02-11 20:49 +0000
          Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-11 18:37 +0000
            Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-13 12:25 +0100
        Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-11 14:34 +0100
          Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-12 11:35 +1100
            Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-12 07:24 +0000
              Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-12 10:59 +0100
                Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-12 10:13 +0000
                Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-13 13:22 +0100
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-13 13:07 +0100
              Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-12 20:59 +1100
            Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-13 12:35 +0100
              Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-13 13:30 +0100
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-13 13:44 +0100
          Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-12 07:35 +0000
            Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-12 10:55 +0100
              Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-13 08:27 +0000
                Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-13 13:43 +0100
                Re: Recognizer proposal Gerry Jackson <do-not-use@swldwa.uk> - 2026-02-13 23:50 +0000
                Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-14 12:53 +1100
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-15 13:33 +0100
                Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-16 12:18 +1100
                Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-19 13:42 +0100
                Evolution of Forths  was Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-19 14:38 +0100
                Re: Evolution of Forths was Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-20 12:33 +1100
                Re: Evolution of Forths was Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-20 11:58 +0100
                Re: Evolution of Forths was Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-24 10:45 +1100
                Re: Evolution of Forths was Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-21 16:35 +0100
                Re: Evolution of Forths was Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-24 13:13 +1100
          Re: Recognizer proposal Paul Rubin <no.email@nospam.invalid> - 2026-02-25 20:25 -0800
            Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-26 06:53 +0000
            Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-26 13:09 +0100
              Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-27 20:24 +1100
              Re: Recognizer proposal Gerry Jackson <do-not-use@swldwa.uk> - 2026-02-27 09:25 +0000
                Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-27 14:48 +0000
              Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-27 19:21 +0100
                Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-28 10:15 +1100
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-28 15:34 +0100
                Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-28 17:56 +0100
                Re: Recognizer proposal Paul Rubin <no.email@nospam.invalid> - 2026-02-28 22:45 -0800
                Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-03-01 07:54 +0000
                Re: Recognizer proposal Paul Rubin <no.email@nospam.invalid> - 2026-03-01 14:17 -0800
                Re: Recognizer proposal antispam@fricas.org (Waldek Hebisch) - 2026-03-02 00:21 +0000
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-03-02 12:36 +0100
                Re: Recognizer proposal Paul Rubin <no.email@nospam.invalid> - 2026-03-04 16:48 -0800
                Re: Recognizer proposal antispam@fricas.org (Waldek Hebisch) - 2026-03-02 00:17 +0000
            Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-02-26 07:32 -0600
            Re: Recognizer proposal Stephen Pelc <stephen@vfxforth.com> - 2026-03-02 13:23 +0000
              Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-03-03 13:47 +0100
                Re: Recognizer proposal Stephen Pelc <stephen@vfxforth.com> - 2026-03-03 14:39 +0000
                Re: Recognizer proposal Paul Rubin <no.email@nospam.invalid> - 2026-03-04 16:52 -0800
                Re: Recognizer proposal Stephen Pelc <stephen@vfxforth.com> - 2026-03-06 10:54 +0000
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-03-06 12:22 +0100
                Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-03-07 17:58 +0100
              Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-03-03 18:33 +0100
      Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-11 13:54 +0100
        Re: Recognizer proposal jkn <jkn+nin@nicorp.co.uk> - 2026-02-11 13:09 +0000
          Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-11 15:59 +0100
            Re: Recognizer proposal jkn <jkn+nin@nicorp.co.uk> - 2026-02-11 20:46 +0000
        Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-11 16:30 +0000
          Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-12 12:07 +0100
            Re: Recognizer proposal Lars Brinkhoff <lars.spam@nocrew.org> - 2026-02-12 13:00 +0000
            Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-12 12:55 +0000
              Re: Recognizer proposal Hans Bezemer <the.beez.speaks@gmail.com> - 2026-02-13 14:17 +0100
            Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-13 13:28 +0100
              Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-14 01:23 +1100
            Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-02-16 22:07 -0600
              Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-17 21:25 +1100
                Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-02-17 08:16 -0600
                Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-21 15:32 +0000
              Re: Recognizer proposal Stephen Pelc <stephen@vfxforth.com> - 2026-02-17 14:13 +0000
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-17 20:21 +0100
                Re: Recognizer proposal dxf <dxforth@gmail.com> - 2026-02-18 13:08 +1100
    Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-11 12:29 +0100
  Re: Recognizer proposal minforth <minforth@gmx.net> - 2026-02-18 11:14 +0100
    Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-21 15:40 +0000
      Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-02-24 02:43 -0600
        Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-03-08 18:15 -0500
          Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-03-09 07:49 +0000
            Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-03-09 10:37 +0100
              Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-03-10 07:35 +0000
                Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-03-10 12:06 +0100
                Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-03-11 09:48 -0500
            Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-03-09 16:48 -0500
              Re: Recognizer proposal Krishna Myneni <krishna.myneni@ccreweb.org> - 2026-03-11 09:45 -0500
  Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-18 12:33 +0100
    Re: Recognizer proposal anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2026-02-21 15:48 +0000
      Re: Recognizer proposal albert@spenarnc.xs4all.nl - 2026-02-25 14:11 +0100
  Re: Recognizer proposal NN <november.nihal@gmail.com> - 2026-03-19 19:23 +0000
    Re: Recognizer proposal thresh3@fastmail.com (Lev) - 2026-03-19 23:13 +0000

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