Re: Recognizer proposal

Date	2026-02-27 20:24 +1100
Subject	Re: Recognizer proposal
Newsgroups	comp.lang.forth
References	<2026Feb9.084944@mips.complang.tuwien.ac.at> <698bcb8b$1@news.ausics.net> <nnd$4b4385df$6fc207a6@bc51f1c3df4eeea6> <87qzq8b07r.fsf@nightsong.com> <nnd$49234849$04e72e89@b464edcaab271438>
From	dxf <dxforth@gmail.com>
Message-ID	<69a162c2$1@news.ausics.net> (permalink)
Organization	Ausics - https://newsgroups.ausics.net

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On 26/02/2026 11:09 pm, albert@spenarnc.xs4all.nl wrote:
> In article <87qzq8b07r.fsf@nightsong.com>,
> Paul Rubin  <no.email@nospam.invalid> wrote:
>> Hans Bezemer <the.beez.speaks@gmail.com> writes:
>>> I still think that meddling with the text interpreter is a big no-no
>>> and an invitation to disaster.
>>
>> Yes, S" 12.34e" >FLOAT is quite horrible, but having the behaviour of
>> "123.45" change depending on whether the floating point wordset is
>> loaded is also horrible.  Probably best to leave things as they are, and
>> maybe suggest a nonstandard extension to treat 123.45 as a float.  To
>> get a double cell you'd use
> 
> Offically 123.45 is not a double number. It should end with a decimal point.
> 
> How is the support for a proposal:
> 
> Double numbers should start and end with a dot.
> Now any numbers containing a single dot are automatically fp
> 
> A program that uses single dots to indicate doubles, should
> declare an environmental dependancy. The default behaviour it
> that they are floats.
> 
> In this way most programs that uses fp and use single dots are
> fully compliant.
> 
> There are people who are font of 01/02/03 date (2003 januari 2 )
> indications that are examples in Starting Forth.

And those who see it as a vulnerability:

  garbage in  -->  valid number out

> You could do this with recognizers (I suppose).

Given the cost of recognizers one hopes it can do better :)

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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