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Re: MiniForth 0.1.18 has just been released ...

From Gerry Jackson <gerry@jackson9000.fsnet.co.uk>
Newsgroups comp.lang.forth
Subject Re: MiniForth 0.1.18 has just been released ...
Date 2013-03-05 17:03 +0000
Organization A noiseless patient Spider
Message-ID <kh58e5$ene$1@dont-email.me> (permalink)
References (2 earlier) <513497f8$0$609$e4fe514c@dreader34.news.xs4all.nl> <kh2hvp$lnd$1@dont-email.me> <5134f5b0$0$6329$e4fe514c@dreader35.news.xs4all.nl> <kh3158$mtp$1@dont-email.me> <ef44640b-3fd6-487a-99be-81fe4fda3b7e@ia3g2000vbb.googlegroups.com>

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On 05/03/2013 08:19, Alex McDonald wrote:
> On Mar 4, 8:46 pm, Gerry Jackson <ge...@jackson9000.fsnet.co.uk>
> wrote:
>> On 04/03/2013 19:27, Albert van der Horst wrote:
[...]
>>> Prefixes are the recognizers Anton talks about. Only with me they are
>>> just Forth words, that are found in the dictionary.
>>> Look up
>>>       0x78AB
>>> in the dictionary and find a match at 0x , because it has the prefix bit
>>> set. Now 0x is IMMEDIATE and at execution find >IN pointing just past
>>> 0x, ready to parse the number.
>>> The whole mechanism adds two lines in INTERPRET.
>>
>> How does ciforth handle the case where BASE is set to 36 and the
>> programmer wants to input a base 36 number 0x78AB or 0x78ab or 0X78AB?
>
> The mechanism I use is a cascade of conversions. 0x78ab would be
> converted base 36, and not recognised as the hex number 0x78ab, as the
> base 36 successful conversion comes first.
>
>>
>> Can a ciforth user define a new prefix e.g. i# for a complex number,
>> without delving into the guts of ciforth?
>
> Again, for my Forth, it's simply a case of adding a words with the
> signature ( addr len -- double ) to a list of "recognisers". If it
> can't convert, it THROWs and the next "recogniser" is tried.
>

Yes that is the method I will add to my system except that I don't see 
that a THROW is necesssary - possibly because I haven't done it yet.
In my first post I was trying to make the point that if the user can 
control the order in which recognisers are tried the order given in the 
standard text interpreter can be usefully overridden.

> This is quite different from ciforth's mechanism of prefixes in a
> dictionary. I suspect 0x78ab only has one interpretation; that of a
> base 16 number, and that 0xdefg would be an error.

Well it's a moot point given that the Forth 200X prefix for hex numbers 
will be $. The ciforth approach to prefixes as given in Albert's reply 
is totally non-standard anyway. The Forth standard accepts leading 0's 
as part of an integer input.

-- 
Gerry

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Thread

MiniForth 0.1.18 has just been released ... Rob Sciuk <rob@controlq.com> - 2013-02-26 17:03 -0500
  Re: MiniForth 0.1.18 has just been released ... "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2013-02-27 04:06 -0500
    Re: MiniForth 0.1.18 has just been released ... Richard Owlett <rowlett@pcnetinc.com> - 2013-02-27 05:30 -0600
      Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-27 06:34 -0600
        Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-27 14:42 +0000
          Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-27 11:54 -0600
            Re: MiniForth 0.1.18 has just been released ... Rob Sciuk <rob@controlq.com> - 2013-02-27 15:27 -0500
              Re: MiniForth 0.1.18 has just been released ... Coos Haak <chforth@hccnet.nl> - 2013-02-27 21:58 +0100
              Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-27 16:33 -0600
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-02 17:23 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-02 15:12 -0600
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-03 14:30 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-03 14:49 -0600
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-07 16:58 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-07 16:35 -0600
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-08 17:29 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-08 12:17 -0600
            Re: MiniForth 0.1.18 has just been released ... Bernd Paysan <bernd.paysan@gmx.de> - 2013-02-28 00:17 +0100
              Re: MiniForth 0.1.18 has just been released ... Paul Rubin <no.email@nospam.invalid> - 2013-02-28 01:04 -0800
                Re: MiniForth 0.1.18 has just been released ... Bernd Paysan <bernd.paysan@gmx.de> - 2013-02-28 17:10 +0100
              Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-28 11:20 -0600
            Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-02 16:54 +0000
              Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-02 15:38 -0600
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-03 14:43 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-03 15:05 -0600
                Re: MiniForth 0.1.18 has just been released ... Bernd Paysan <bernd.paysan@gmx.de> - 2013-03-03 23:14 +0100
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-04 03:41 -0600
                Re: MiniForth 0.1.18 has just been released ... Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-03-04 11:00 +0000
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-04 12:47 +0000
                Re: MiniForth 0.1.18 has just been released ... Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-03-04 16:27 +0000
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-04 19:27 +0000
                Re: MiniForth 0.1.18 has just been released ... Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-03-04 20:46 +0000
                Re: MiniForth 0.1.18 has just been released ... Alex McDonald <blog@rivadpm.com> - 2013-03-05 00:19 -0800
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-05 12:17 +0000
                Re: MiniForth 0.1.18 has just been released ... Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-03-05 17:22 +0000
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-05 17:52 +0000
                Re: MiniForth 0.1.18 has just been released ... Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-03-05 17:03 +0000
                Re: MiniForth 0.1.18 has just been released ... Rob Sciuk <rob@controlq.com> - 2013-03-05 12:38 -0500
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-05 17:57 +0000
                Re: MiniForth 0.1.18 has just been released ... Rob Sciuk <rob@controlq.com> - 2013-03-05 13:29 -0500
                Re: MiniForth 0.1.18 has just been released ... Andy Valencia <user@vsta.org> - 2013-03-05 22:19 +0000
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-05 17:58 +0000
                Re: MiniForth 0.1.18 has just been released ... Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-03-05 19:26 +0000
                Re: MiniForth 0.1.18 has just been released ... Alex McDonald <blog@rivadpm.com> - 2013-03-05 11:19 -0800
                Forth convergence with rest of world Andy Valencia <user@vsta.org> - 2013-03-05 22:17 +0000
                Re: Forth convergence with rest of world Alex McDonald <blog@rivadpm.com> - 2013-03-05 15:15 -0800
                Re: Forth convergence with rest of world Bernd Paysan <bernd.paysan@gmx.de> - 2013-03-06 17:35 +0100
                Re: Forth convergence with rest of world albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-06 16:44 +0000
                Re: Forth convergence with rest of world Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-06 17:39 +0000
                Re: Forth convergence with rest of world Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-05 18:16 -0600
                Re: Forth convergence with rest of world Rob Sciuk <rob@controlq.com> - 2013-03-06 13:49 -0500
                Re: Forth convergence with rest of world Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-06 19:11 +0000
                Re: Forth convergence with rest of world Rob Sciuk <rob@controlq.com> - 2013-03-06 14:24 -0500
                Re: Forth convergence with rest of world Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-06 19:40 +0000
                Re: Forth convergence with rest of world "Elizabeth D. Rather" <erather@forth.com> - 2013-03-06 09:26 -1000
                Re: Forth convergence with rest of world "Elizabeth D. Rather" <erather@forth.com> - 2013-03-06 09:26 -1000
                Re: Forth convergence with rest of world Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-06 15:34 -0600
                Re: Forth convergence with rest of world Andy Valencia <user@vsta.org> - 2013-03-06 22:04 +0000
                Re: Forth convergence with rest of world "Elizabeth D. Rather" <erather@forth.com> - 2013-03-06 12:09 -1000
                Re: Forth convergence with rest of world Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-07 04:24 -0600
                Re: Forth convergence with rest of world Alex McDonald <blog@rivadpm.com> - 2013-03-07 04:15 -0800
                Re: Forth convergence with rest of world Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-07 08:42 -0600
                Re: Forth convergence with rest of world Alex McDonald <blog@rivadpm.com> - 2013-03-07 13:50 -0800
                Re: Forth convergence with rest of world Rob Sciuk <rob@controlq.com> - 2013-03-07 12:12 -0500
                Re: Forth convergence with rest of world Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-07 18:36 +0000
                Re: Forth convergence with rest of world Rob Sciuk <rob@controlq.com> - 2013-03-07 14:07 -0500
                Re: Forth convergence with rest of world Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-07 19:43 +0000
                Re: Forth convergence with rest of world anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-08 17:27 +0000
                Re: Forth convergence with rest of world "Elizabeth D. Rather" <erather@forth.com> - 2013-03-07 08:47 -1000
                Re: Forth convergence with rest of world awegel@arcor.de (Alex Wegel) - 2013-03-07 21:42 +0100
                Re: Forth convergence with rest of world Alex McDonald <blog@rivadpm.com> - 2013-03-07 14:43 -0800
                Re: Forth convergence with rest of world "Elizabeth D. Rather" <erather@forth.com> - 2013-03-07 13:53 -1000
                Re: Forth convergence with rest of world stephenXXX@mpeforth.com (Stephen Pelc) - 2013-03-07 12:38 +0000
                Re: Forth convergence with rest of world Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-07 08:43 -0600
                Re: Forth convergence with rest of world Syd Rumpo <usenet@nononono.co.uk> - 2013-03-08 18:04 +0000
                Re: Forth convergence with rest of world Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-08 12:18 -0600
                Re: Forth convergence with rest of world Syd Rumpo <usenet@nononono.co.uk> - 2013-03-08 18:36 +0000
                Re: Forth convergence with rest of world "Elizabeth D. Rather" <erather@forth.com> - 2013-03-08 14:30 -1000
                Re: Forth convergence with rest of world Syd Rumpo <usenet@nononono.co.uk> - 2013-03-09 01:27 +0000
                Re: Forth convergence with rest of world Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-09 02:43 -0600
                Re: MiniForth 0.1.18 has just been released ... Mark Wills <markrobertwills@yahoo.co.uk> - 2013-03-05 01:19 -0800
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-05 12:01 +0000
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-08 17:02 +0000
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-04 12:45 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-04 11:58 -0600
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-04 19:34 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-04 15:15 -0600
                Re: MiniForth 0.1.18 has just been released ... Roelf Toxopeus <rt4all@notthis.hetnet.nl> - 2013-03-04 23:31 +0100
                Re: MiniForth 0.1.18 has just been released ... Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-03-05 17:07 +0000
                Re: MiniForth 0.1.18 has just been released ... Rob Sciuk <rob@controlq.com> - 2013-03-05 12:11 -0500
                Re: MiniForth 0.1.18 has just been released ... Bernd Paysan <bernd.paysan@gmx.de> - 2013-03-05 00:32 +0100
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-07 17:00 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-07 16:52 -0600
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-08 17:32 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-08 12:25 -0600
                Re: MiniForth 0.1.18 has just been released ... Brad Eckert <hwfwguy@gmail.com> - 2013-03-11 09:57 -0700
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-11 12:05 -0500
                Re: MiniForth 0.1.18 has just been released ... anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-03-11 17:20 +0000
                Re: MiniForth 0.1.18 has just been released ... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-03-11 14:05 -0500
                Re: MiniForth 0.1.18 has just been released ... Alex McDonald <blog@rivadpm.com> - 2013-03-11 14:35 -0700
                Re: MiniForth 0.1.18 has just been released ... Bernd Paysan <bernd.paysan@gmx.de> - 2013-03-12 00:21 +0100
                Re: MiniForth 0.1.18 has just been released ... stephenXXX@mpeforth.com (Stephen Pelc) - 2013-03-12 12:13 +0000
                Re: MiniForth 0.1.18 has just been released ... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-03-11 19:16 +0000
                Re: MiniForth 0.1.18 has just been released ... Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-11 19:29 +0000
                Re: MiniForth 0.1.18 has just been released ... Bernd Paysan <bernd.paysan@gmx.de> - 2013-03-11 21:36 +0100
                Re: MiniForth 0.1.18 has just been released ... Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-11 20:52 +0000
                Re: MiniForth 0.1.18 has just been released ... Alex McDonald <blog@rivadpm.com> - 2013-03-11 14:39 -0700
                Re: MiniForth 0.1.18 has just been released ... Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-11 21:52 +0000
                Re: MiniForth 0.1.18 has just been released ... Coos Haak <chforth@hccnet.nl> - 2013-03-12 01:11 +0100
                Re: MiniForth 0.1.18 has just been released ... Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2013-03-12 00:41 +0000
                Re: MiniForth 0.1.18 has just been released ... Coos Haak <chforth@hccnet.nl> - 2013-03-12 17:33 +0100
    Re: MiniForth 0.1.18 has just been released ... Rob Sciuk <rob@controlq.com> - 2013-02-27 11:51 -0500
      Re: MiniForth 0.1.18 has just been released ... "Elizabeth D. Rather" <erather@forth.com> - 2013-02-27 09:25 -1000
        Re: MiniForth 0.1.18 has just been released ... Rob Sciuk <rob@controlq.com> - 2013-02-27 17:23 -0500
          Re: MiniForth 0.1.18 has just been released ... "Elizabeth D. Rather" <erather@forth.com> - 2013-02-27 13:10 -1000

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