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[Orgmode] Re: [Babel] Error output buffer

From: Sébastien Vauban
Subject: [Orgmode] Re: [Babel] Error output buffer
Date: Sat, 27 Nov 2010 00:11:11 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (windows-nt)

Hi Eric,

"Eric Schulte" wrote:
> Sébastien Vauban <address@hidden> writes:
>> Eric S Fraga wrote:
>>>> - add something visible after every execution, like a separator line or a
>>>>   ^L character (new page, than can easily be displayed as a rule)
>>> I like this one (above), especially if you could append the date+time to
>>> the formfeed and, ideally, some indication of the source code block
>>> responsible for what follows. The latter is important because I often have
>>> multiple source code blocks with the same language and it would be nice to
>>> distinguish between them in terms of error output. Having the srcname
>>> appear would be great, if it's possible.
>> I think that what'd be very useful is:
>> - some kind of separator
>> - some timestamp (à la Org?  with or without seconds)
>> - some language info?
>> - a referrer to the code block (like the =comments= in tangled files)
>> The separator could even be (why not?) a Org heading: the entire output
>> buffer could be an Org file, allowing for folding of less useful entries,
>> or sparse tree searches:
>> * 2010-11-23 Tue 22:29:11 sh block
>> /* [[file:~/src/test.org::*Commands][Commands:1]] */
>> Invalid command: ls\r
>> Invalid command: date\r
>> /* Commands:1 ends here */
> These are great ideas, in the case of single block execution I think we're
> fine with the current behavior of a cleared error buffer containing only a
> single error output,

It certainly is already much better, though -- trying *on purpose* to play the
devil's advocate -- we can imagine one would like to see the output of
different executions at different times: I'm writing some code, testing,
getting an error, updating the code, testing, and would like to see what diff
it made with regard to the previous execution.

> but in the case of multiple block evaluations (e.g. chained code blocks or
> during export) I think that the above suggestions are great. I especially
> like the idea of one Org-mode top-level heading per error.

For your info, it's already what I'm doing with the messages from my .emacs
file: at some points, I call:*

(message "* Org mode stuff")


(message "** Org clocking stuff")

so that I can easily switch my Messages buffer to org-mode and collapse
sections which don't interest me at that point in time...

> I've added this to the Babel task stack.

Thanks a lot.

Best regards,

Sébastien Vauban

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