* processing a literal example line by line in a shell source block?
@ 2022-11-02 18:17 Greg Minshall
2022-11-03 7:41 ` Ihor Radchenko
2022-11-04 3:15 ` Max Nikulin
0 siblings, 2 replies; 5+ messages in thread
From: Greg Minshall @ 2022-11-02 18:17 UTC (permalink / raw)
To: orgmode
hi. i have a text in a named #+begin_example ... #+end_example block.
i would like to process this text line by line in a shell (bash, say)
code block. but, it appears that the individual lines are not
separated, but passed as one long string to the source block. (example
below.)
is there a magic incantation i can use to accomplish this?
cheers, Greg
#+name: lbl
#+begin_example
line 1
line 2
#+end_example
#+begin_src bash :var input=lbl :var in2='("first" "second")
echo ${#input[@]}
echo ${#in2[@]}
echo ${input}
#+end_src
#+RESULTS:
| 1 | | | |
| 2 | | | |
| line | 1 | line | 2 |
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: processing a literal example line by line in a shell source block?
2022-11-02 18:17 processing a literal example line by line in a shell source block? Greg Minshall
@ 2022-11-03 7:41 ` Ihor Radchenko
2022-11-04 2:14 ` Greg Minshall
2022-11-07 1:38 ` Greg Minshall
2022-11-04 3:15 ` Max Nikulin
1 sibling, 2 replies; 5+ messages in thread
From: Ihor Radchenko @ 2022-11-03 7:41 UTC (permalink / raw)
To: Greg Minshall; +Cc: orgmode
Greg Minshall <minshall@umich.edu> writes:
> hi. i have a text in a named #+begin_example ... #+end_example block.
> i would like to process this text line by line in a shell (bash, say)
> code block. but, it appears that the individual lines are not
> separated, but passed as one long string to the source block. (example
> below.)
>
> is there a magic incantation i can use to accomplish this?
Try
#+name: lbl
#+begin_example
line 1
line 2
#+end_example
#+begin_src bash :var input=lbl :results output
echo "${input}"
#+end_src
#+RESULTS[719e61ee2f3fb87459530cf75b7bbef74b7d4337]:
: line 1
: line 2
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: processing a literal example line by line in a shell source block?
2022-11-03 7:41 ` Ihor Radchenko
@ 2022-11-04 2:14 ` Greg Minshall
2022-11-07 1:38 ` Greg Minshall
1 sibling, 0 replies; 5+ messages in thread
From: Greg Minshall @ 2022-11-04 2:14 UTC (permalink / raw)
To: Ihor Radchenko; +Cc: orgmode
Ihor,
> Try
>
> #+name: lbl
> #+begin_example
> line 1
> line 2
> #+end_example
>
> #+begin_src bash :var input=lbl :results output
> echo "${input}"
> #+end_src
ah, the double quotes! thanks very much!
cheers, Greg
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: processing a literal example line by line in a shell source block?
2022-11-03 7:41 ` Ihor Radchenko
2022-11-04 2:14 ` Greg Minshall
@ 2022-11-07 1:38 ` Greg Minshall
1 sibling, 0 replies; 5+ messages in thread
From: Greg Minshall @ 2022-11-07 1:38 UTC (permalink / raw)
To: Ihor Radchenko; +Cc: orgmode
Ihor,
again, thanks for helping me with that problem.
and, just for my (or anyone's) future reference, how i probably *should*
have debugged this was to tangle the relevant source block, and then
examine the resulting shell-script file, and gone from there.
cheers, Greg
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: processing a literal example line by line in a shell source block?
2022-11-02 18:17 processing a literal example line by line in a shell source block? Greg Minshall
2022-11-03 7:41 ` Ihor Radchenko
@ 2022-11-04 3:15 ` Max Nikulin
1 sibling, 0 replies; 5+ messages in thread
From: Max Nikulin @ 2022-11-04 3:15 UTC (permalink / raw)
To: emacs-orgmode
On 03/11/2022 01:17, Greg Minshall wrote:
> hi. i have a text in a named #+begin_example ... #+end_example block.
> i would like to process this text line by line in a shell (bash, say)
> code block. but, it appears that the individual lines are not
> separated, but passed as one long string to the source block. (example
> below.)
>
> #+name: lbl
> #+begin_example
> line 1
> line 2
> #+end_example
You may use :stdin instead of :var, see
https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-shell.html
#+begin_src bash :stdin lbl
while read -r -a arr ; do
printf 'value\t%s\n' "${arr[1]}"
done
#+end_src
#+RESULTS:
| value | 1 |
| value | 2 |
> #+begin_src bash :var input=lbl :var in2='("first" "second")
> echo ${#input[@]}
> echo ${#in2[@]}
> echo ${input}
> #+end_src
There is a nice tool: shellcheck. It should not be difficult to define a
function that feeds current source block to it. The only point is to
specify shell type since shebang is missed. In some cases even bash -n
before running a script may save some time during debugging.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-11-07 1:39 UTC | newest]
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2022-11-02 18:17 processing a literal example line by line in a shell source block? Greg Minshall
2022-11-03 7:41 ` Ihor Radchenko
2022-11-04 2:14 ` Greg Minshall
2022-11-07 1:38 ` Greg Minshall
2022-11-04 3:15 ` Max Nikulin
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