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Re: Odd backtrace in condition-case

From: Andy Moreton
Subject: Re: Odd backtrace in condition-case
Date: Mon, 20 May 2019 19:22:27 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (windows-nt)

On Mon 20 May 2019, Lars Ingebrigtsen wrote:

> I usually run with `debug-on-error' set, but lately I've started getting
> these backtraces:

> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
>   capitalize(nil)
>   timezone-make-arpa-date(2000 0 0 "01:00:00" (3600 "CET"))
>   timezone-make-date-arpa-standard("Session")
>   date-to-time("Session")
>   (condition-case nil (date-to-time "Session") (error nil))

> Shouldn't the `error' clause in condition-case catch all errors?

`date-to-time' has:

         (condition-case-unless-debug err
             (encode-time (parse-time-string
                           (timezone-make-date-arpa-standard date)))

As you have `debug-on-error' set, this looks like the expected

The `condition-case-unless-debug' was added by Stefan in commit
cb411c609d43 on April 19th. Perhaps this is left over debugging code ?


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