bug#56241: [PATCH] icalendar doesn't correctly process arbitrary diary sexp entries

[Lars Ingebrigtsen <larsi@gnus.org>]

hokomo <hokomo@airmail.cc> writes:

> Exporting the my-float sexp will fail with:
>
> "Error in line 0 -- (wrong-type-argument listp First Sunday in July
> 2): ‘%%(my-float 7 0 1) First Sunday in July 2"
>
> because the returned list is confused for a dotted pair.

Thanks; patch pushed to Emacs 29.

> `icalendar-export-sexp-enumeration-days' is set to 366 to guarantee
> that the sexp event occurs at least once. It looks like there's a
> different bug (?) where, even if an entry is recognized as an
> arbitrary diary sexp, if it doesn't produce any events, the converter
> will go ahead with trying to interpret it in a different way and
> eventually fail. E.g., lowering the enumeration days to 0 gives:
>
> "Error in line 0 -- (error Could not parse date): ‘%%(my-float 7 0 1)
> First Sunday in July 2’"
>
> after exhausting all of the known entry types. Should I file this as a
> separate bug?

No, we can work on this problem here in this bug report.

Do you have a recipe to reproduce the problem, starting from "emacs -Q"?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no