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From: minforth <minforth@gmx.net>
Newsgroups: comp.lang.forth
Subject: Re: 0 vs. translate-none
Date: Wed, 24 Sep 2025 10:44:15 +0200
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Am 24.09.2025 um 10:28 schrieb albert@spenarnc.xs4all.nl:
> In article <2025Sep24.083826@mips.complang.tuwien.ac.at>,
> Anton Ertl <anton@mips.complang.tuwien.ac.at> wrote:
>> minforth <minforth@gmx.net> writes:
>>> Am 23.09.2025 um 19:23 schrieb Anton Ertl:
>>>> minforth <minforth@gmx.net> writes:
>>>>> FWIW I also use suffixes for recognizers:
>>>>> let M be a matrix
>>>>> M´  auto-transposed
>>>>> M~  auto-inverted
>>>>
>>>> Can you give an example of a matrix with your matrix recognizer?
>>>>
>>>
>>> To be fair, here MinForth displays the matrix/vector stack in the
>>> QUIT prompt:
>>>
>>> MinForth 3.6 (64 bit) (fp matrix)
>>> # 0 0 matrix mat  ok
>>> # m[ 1 2 3 ; 4 5 6 ]  ok
>>
>> Given this syntax, a parsing word M[ suggests itself to me (although I
>> generally dislike parsing words and probably would choose a different
>> syntax); or maybe a word that switches to a matrix interpreter
>> (possibly implemented using the recognizer words, with ] switching
>> back.  Why did you choose to use a recognizer?
> 
> WORDLIST suggest a different solution with a wordlist MATRIX
> MAT( adds MATRIX to the search order
> )MAT removes MATRIX from the search order
> 
> Circumstances may prevent this, but I think that is the situation
> where wordlists are intended for, create a different interpretation/compile
> environment.
In principle yes, but wordlists don't hook themselves into the Forth 
interpreter. IMO this is the only novelty of recognizers.