Re: Emacs 29.1, org-agenda and SCHEDULED entries

[Ihor Radchenko]

Christian Barthel <bch@online.de> writes:

> while upgrading from emacs 28.1 to 29.1, my org-agenda stopped working.
> The message in the echo area was:
>
> --8<---------------cut here---------------start------------->8---
>     Search failed: "\\<SCHEDULED: *<\\([^>]+\\)>"
> --8<---------------cut here---------------end--------------->8---
>
> The search seemed to fail in an old org file:
>
> --8<---------------cut here---------------start------------->8---
>   * someentry
>     SCHEDULED: [2017-12-12 Tue 17:42]
> --8<---------------cut here---------------end--------------->8---
>
> Not sure why I've used an inactive timestamp there but it shouldn't
> be a problem I guess?

It is exactly the problem.
Inactive timestamps are not allowed in SCHEDULED/DEADLINE.

> Was/Is that change on purpose? (I haven't seen anything in the
> ChangeLog)

Only internals changed. Previously, agenda used a dumb regexp search
using this failing regexp (and skipped your problematic entry
completely). Now, we first query parser cache, which considers your
"someentry" as :scheduled. But agenda expects scheduled items to use
active timestamps all the time, causing the error.

We should update the parser to treat such malformed SCHEDULED/DEADLINE
lines as ordinary paragraphs and report them in org-lint.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
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