From: "Sébastien Miquel" <sebastien.miquel@posteo.eu>
To: Ihor Radchenko <yantar92@gmail.com>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: Re: [PATCH] Add :noweb-prefix and :noweb-trans babel header arguments
Date: Tue, 31 May 2022 06:48:11 +0000 [thread overview]
Message-ID: <7702b511-c289-5688-c64c-fb673324a63a@posteo.eu> (raw)
In-Reply-To: <87y1yiz3js.fsf@localhost>
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Hi,
Ihor Radchenko writes:
> Can you provide more concrete examples?
>
>> Some drawbacks:
>> + doesn't work for all languages (does work for LaTeX)
> Which languages do not work?
Most languages do not work. Using your proposed solution, what I'm
trying to do is
#+name:javascript-header
#+begin_src javascript :tangle no
some javascript, with \ and " to be escaped
#+end_src
#+name: string-escape
#+begin_src emacs-lisp :var str="" :tangle no
(prin1-to-string (string-trim-right str))
#+end_src
#+begin_src emacs-lisp :noweb yes :tangle yes
(setq javascript-header <<string-escape(str=javascript-header)>>)
#+end_src
If you replace javascript with latex, it happens to work, because when
org executes a latex block, it prints its content.
The goal is to tangle to some lisp code whose purpose is to generate
LaTeX/javascript code. Quite niche admittedly, though as you showed,
it could also be used to string-escape documentation.
>> + the tangle gets very noisy: not only are the result of execution
>> printed in the echo buffer, but emacs visits the tangling buffer
>> and moves the point to each block.
>> Perhaps this is a bug that can be fixed.
> Did you try to play with :results header argument to disable messages?
> What exactly went unexpected?
I did. I might have missed something, but no combination of :results
argument to both the latex block and the string-escape block silences
the tangle (except for :results none, which doesn't tangle the content
of the block). During tangle, the contents of the latex block are
displayed (shortly) in the echo buffer (check *Messages*), and the
point very briefly moves to the latex block. This isn't very
noticeable with a single block.
>> + src block execution also resets the noweb cache, slowing down
>> tangle, though I have not tried to measure the effect.
> I am not sure what you are referring to here. Can you elaborate?
Lines 2892-2893 of (my) ob-core.el, in org-babel-expand-noweb-references:
> ;; Evaluation can potentially modify the buffer
> ;; and invalidate the cache: reset it.
Regards,
--
Sébastien Miquel
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next prev parent reply other threads:[~2022-05-31 6:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-15 10:42 [PATCH] Add :noweb-prefix and :noweb-trans babel header arguments Sébastien Miquel
2022-04-28 13:45 ` Ihor Radchenko
2022-04-29 14:27 ` Sébastien Miquel
2022-04-30 6:05 ` Ihor Radchenko
2022-04-30 7:35 ` Sébastien Miquel
2022-04-30 8:41 ` Ihor Radchenko
2022-05-30 19:51 ` Sébastien Miquel
2022-05-31 5:14 ` Ihor Radchenko
2022-05-31 6:48 ` Sébastien Miquel [this message]
2022-07-16 8:57 ` [FR] Make :var foo=name-of-src-block assign the source block code instead of currently assigned result of evaluation (was: [PATCH] Add :noweb-prefix and :noweb-trans babel header arguments) Ihor Radchenko
2022-07-16 10:17 ` Greg Minshall
2022-07-16 10:45 ` Ihor Radchenko
2022-07-16 14:31 ` Greg Minshall
2022-07-17 17:39 ` Sébastien Miquel
2022-07-23 4:52 ` Ihor Radchenko
2022-08-29 17:39 ` [PATCH] " Sébastien Miquel
2022-08-31 4:04 ` Ihor Radchenko
2022-07-21 11:13 ` [PATCH] org-babel: Do not echo output of resolved noweb references Ihor Radchenko
2022-07-21 13:41 ` Sébastien Miquel
2022-08-22 12:01 ` Ihor Radchenko
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