Bug: [ob-clojure] Surprising evaluation result [9.1.6 (release_9.1.6-491-g70b029 @ /Users/xcy/src/org-mode/lisp/)]

Bug: [ob-clojure] Surprising evaluation result [9.1.6 (release_9.1.6-491-g70b029 @ /Users/xcy/src/org-mode/lisp/)]

[Xu Chunyang]

Hello all,

I run the following Clojure code with CIDER as the backend. The result
is surprising to me:

    #+begin_src clojure
    (* 6 7)
    (= nil ())
    #+end_src
    
    #+RESULTS:
    : 42false

As you can see, the result is the concatenation of the value of each
expression. Is it expected? I would like to get only the value of the
last expression, i.e., false.


--
Org   release_9.1.7-440-g5e8fa1361
CIDER v0.16.0-83-g88f4fcf
Emacs 27.0.50

Re: Bug: [ob-clojure] Surprising evaluation result [9.1.6 (release_9.1.6-491-g70b029 @ /Users/xcy/src/org-mode/lisp/)]

[numbchild]

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No, it's not expected result. It should be caused by my commit here
https://code.orgmode.org/bzg/org-mode/pulls/5
Don't know how to workaround this.

[stardiviner]           <Hack this world!>      GPG key ID: 47C32433
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Blog: http://stardiviner.github.io/

On Thu, Mar 1, 2018 at 11:50 PM, Xu Chunyang <mail@xuchunyang.me> wrote:

> Hello all,
>
> I run the following Clojure code with CIDER as the backend. The result
> is surprising to me:
>
>     #+begin_src clojure
>     (* 6 7)
>     (= nil ())
>     #+end_src
>
>     #+RESULTS:
>     : 42false
>
> As you can see, the result is the concatenation of the value of each
> expression. Is it expected? I would like to get only the value of the
> last expression, i.e., false.
>
>
> --
> Org   release_9.1.7-440-g5e8fa1361
> CIDER v0.16.0-83-g88f4fcf
> Emacs 27.0.50
>
>

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Re: Bug: [ob-clojure] Surprising evaluation result [9.1.6 (release_9.1.6-491-g70b029 @ /Users/xcy/src/org-mode/lisp/)]

[Xu Chunyang]

"numbchild@gmail.com" <numbchild@gmail.com> writes:

> No, it's not expected result. It should be caused by my commit here
> https://code.orgmode.org/bzg/org-mode/pulls/5

I don't think so, your pull request is about ob-clojure-literate, while
I am talking about ob-clojure. I want to know what authors of ob-clojure
think about the behavior, is it a Bug?

> Don't know how to workaround this.

As for workaround, I have the following in my init.el

(define-advice org-babel-expand-body:clojure (:filter-return (body) do)
  (format "(do %s)" body))

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