[J3] [SC22WG5.6520] RE: [ukfortran] RE: Fwd: [SC 22 Convenors] JTC 1 plenary wrap-up - Electronic attachments to standard

[Kurt W Hirchert]

On 11/22/2023 12:30 PM, Van Snyder via J3 wrote:
> On Wed, 2023-11-22 at 11:54 +0900, Malcolm Cohen via J3 wrote:
>>
>> Actually, the reason we stopped doing a syntax rule annex was that 
>> the procedure/program for making it failed, so it was wrong.
>>
>
> Thanks for remembering this. Kurt wrote a Perl program to extract 
> them. Perl is a write-only language, so the program could not be repaired.
>
 From Malcolm's description of the process, I had assumed something else 
had replaced my original Perl program.  While it is certainly possible 
to write Perl that looks like line noise, it is also possible to write 
in styles that are quite readable.  I hope my program was closer to the 
latter.  As I remember it, the biggest problem at the time was that 
there was no definitive termination of syntax rules and constraints in 
the LaTeX, so we had to use some heuristics to decide how much to copy.  
Its been more than two decades since I wrote my program, so I might be 
misremembering, but I believe we weren't numbering constraints at that 
time, so I assume my program was either updated or replaced to address 
that change.

If there is enough demand for it, I would be happy to try to modify my 
old program or write a new one to extract the rules and constraints from 
the current LaTeX source.

-Kurt
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