[rfc-i] An RFC database in Prolog

Bosubabu bosukalam at gmail.com
Thu Sep 16 11:08:33 PDT 2021


When I submit the XML file to submission for RFC, the below error is shown,
Please resolve this issue.

[image: problem.jpg]

On Mon, Sep 13, 2021 at 6:02 PM Marc Petit-Huguenin <marc at petit-huguenin.org>
wrote:

> FWIW the rfc-prolog git repo was just updated with a new Prolog table
> containing the references for RFCs 4001 and up.  References in RFCs lower
> than 4000 are less consistent, so it'll take more work to extract the
> references from these.  The classification of references (i-d, iso, itu-t
> and so on) will also improve as I improve my scripts.
>
> On 8/27/21 6:06 AM, Marc Petit-Huguenin wrote:
> > On 8/27/21 4:32 AM, Marc Petit-Huguenin wrote:
> >> On 8/27/21 4:14 AM, Michael Richardson wrote:
> >>> Marc Petit-Huguenin <marc at petit-huguenin.org> wrote:
> >>>      > I have been working on a Prolog database that would permit to do
> >>>      > various queries on RFC metadata and on Errata.
> >>>
> >>> Can you give us some examples to wet our appetite?
> >>
> >> Here's one that exports the errata database as a CSV file:
> >>
> >> [source,prolog]
> >> ----
> >> :- import format/2 from format.
> >> :- [errata].
> >> :- [rfcs].
> >>
> >> month(1, 'January').
> >> month(2, 'February').
> >> month(3, 'March').
> >> month(4, 'April').
> >> month(5, 'May').
> >> month(6, 'June').
> >> month(7, 'July').
> >> month(8, 'August').
> >> month(9, 'September').
> >> month(10, 'October').
> >> month(11, 'November').
> >> month(12, 'December').
> >>
> >> :- erratum(Id, Formats, Rfc, Reporter, Date, Type, Status),
> >>     rfc(Rfc, Title, _, _, _, date(Y, M), Wg, Area, _),
> >>     month(M, MM),
> >>     functor(Status, S, _),
> >>     format("\"RFC~d\", \"~a\", \"~a ~d\", \"~a\"~n", [Rfc, Title, MM,
> Y, S]),
> >>     fail.
> >> ----
> >>
> >> Another that lists all the RFCs that changed status:
> >>
> >> [source,prolog]
> >> ----
> >> :- import format/2 from format.
> >> :- [metadata].
> >> :- [rfcs].
> >>
> >> :- rfc(Rfc, Title, _, Status, _, _, _, _, _),
> >>     metadatum(Rfc, Status2), Status \= Status2,
> >>     format("RFC~d ~a from ~a to ~a~n", [Rfc, Title, Status, Status2]),
> >>     fail.
> >> ----
> >>
> >> Just copy the one of the content above (between the "----") in a file
> with the ".P" extension, then you just have to `xsb <file>` (without the .P
> extension) to run it.
> >>
> >
> > Do it again! Do it again!
> >
> > OK.  What is the longest obsolescence chain of RFCs?
> >
> > [source,prolog]
> > ----
> > :- import format/2 from format.
> > :- import length/2 from basics.
> > :- import concat_atom/3 from string.
> > :- [metadata].
> > :- [rfcs].
> >
> > chain(Rfc, List) :-
> >    obsoletes(Rfc, Prev),
> >    chain(Prev, L),
> >    List = [Rfc|L].
> > chain(Rfc, [Rfc]).
> >
> > chains(Length - Chain) :-
> >    rfc(Rfc, _, _, _, _, _, _, _, _),
> >    chain(Rfc, List),
> >    length(List, Length),
> >    concat_atom(List, ' ', Chain).
> >
> > print_chains([]).
> > print_chains([_ - L|Xs]) :-
> >    writeln(L),
> >    print_chains(Xs).
> > :-
> >    findall(X, chains(X), List),
> >    keysort(List, Sorted),
> >    print_chains(Sorted).
> > ----
> >
>
>
> --
> Marc Petit-Huguenin
> Email: marc at petit-huguenin.org
> Blog: https://marc.petit-huguenin.org
> Profile: https://www.linkedin.com/in/petithug
> _______________________________________________
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>


-- 

    *S. Bosubabu*   MCA, M.Tech, AMIE, (Ph.D.), PGDCC, Patents, ©, ®

      Scientist - Innovator, Author

      Assistant Professor, CSE Dept,

      Raghu Engineering College (A), Visakhapatnam, JNTU Kakinada

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      https://www.bosubabu.com/
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