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   comp.lang.forth      Forth programmers eat a lot of Bratwurst      117,927 messages   

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   Message 117,909 of 117,927   
   dxf to Gerry Jackson   
   Re: Recognizer proposal   
   14 Feb 26 12:53:01   
   
   From: dxforth@gmail.com   
      
   On 14/02/2026 10:50 am, Gerry Jackson wrote:   
   > On 13/02/2026 12:43, Hans Bezemer wrote:   
   >> On 13-02-2026 09:27, Anton Ertl wrote:   
   >>> Hans Bezemer  writes:   
   >>>> On 12-02-2026 08:35, Anton Ertl wrote:   
   >>>>> [...] small implementations   
   >>>>> pick and choose from the standard requirements anyway, even among the   
   >>>>> requirements for CORE words.  The CORE wordset has only been a   
   >>>>> goalpost for peoplle who implement Forth as an exercise.   
   >>> ...   
   >>>> I don't think that people who are "implementing Forth as an exercise"   
   >>>> can be bothered to make it "a standard compiler".   
   >>>   
   >>> The point is not standard conformance, but a goalpost: To have   
   >>> something to direct the work, and also to have something that tells   
   >>> the implementor when the project is complete.   
   >>>   
   >>>> And although wordsets build modularity (which I welcome) it becomes   
   >>>> useless when it requires you to patch wordsets already implemented.   
   >>>   
   >>> Who is "you" in this sentence?  Given that you write "implemented",   
   >>> you seem to argue that the standard requires the system implementor to   
   >>> implement the base word, and then to patch it.  This is not the case.   
   >>> The system implementor who has decided to implement the FILE words in   
   >>> addition to the CORE words can implement the FILE version of S" from   
   >>> the start, without any patching.   
   >>>   
   >>> Note also that the FILE version of S" conforms to the requirements for   
   >>> the CORE version of S", and that's generally the case for the extended   
   >>> versions of words.  E.g., the specification of CORE's POSTPONE   
   >>> includes   
   >>>   
   >>> | An ambiguous condition exists if name is not found.   
   >>>   
   >>> so it does not specify what "POSTPONE 123" means.  The proposed   
   >>> recognizer version of POSTPONE specifies that.   
   >>>   
   >>> - anton   
   >>   
   >> I could have used "one" - wouldn't have changed the meaning. Nice   
   "Whataboutism"! The argument was (and is) what use has a standard for a toy   
   compiler?   
   >   
   > There's another point I think you're missing. I just looked on at my Forth   
   test suite on GitHub and 78 people have found it useful enough to give it a   
   star. I've no idea whether they are all developing their own "toy" system but   
   I would guess most are,    
   and their system has to have some testing. I suggest that the easiest way is   
   to use an existing test suite. As far as I know there is only one, so that   
   automatically leads them to make their system (at least partially) standard   
   compliant. An unexpected (   
   and unintended) consequence of having a test suite.   
      
   Cart before horse but I agree.  First-time creators will generally pick some   
   standard or system because it's the easiest way.  All the thinking has been   
   done for one and there's a wealth of existing source from which to choose or   
   use as a guide.  It's a rare lion that hasn't undertaken internship as a camel.   
   Moore appears to have been a rebel, lone wolf, from the beginning for whom   
   conformity was anathema, stagnation.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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