* Babel, bash, :variables, and tangling
@ 2019-09-16 0:27 Ken Mankoff
0 siblings, 0 replies; only message in thread
From: Ken Mankoff @ 2019-09-16 0:27 UTC (permalink / raw)
To: Org-Mode mailing list
Hi List,
I'm having some trouble getting babel executed in Emacs and scripts that are tangled to behave the same. I think I've distilled it down to an MWE. I'd like to inject
#+NAME: table
| 1 | 2 |
| 3 | 4 |
into a bash workflow where I need each of those 4 items with their respective row and column. That is, redefine the table so that it is:
| x | y | z |
| 0 | 0 | 1 |
| 0 | 1 | 2 |
| 1 | 0 | 3 |
| 1 | 1 | 4 |
I can do this in a babel block like this:
#+NAME: import
#+BEGIN_SRC sh :results output :tangle no :var table=table
rm -f tmpfile
lineno=0
echo "${table}" | while read line; do
colno=0
echo ${line} | tr ' ' '\n' | while read entry; do
echo $lineno "|" $colno "|" $entry >> tmpfile
colno=$(( $colno + 1 ))
done
lineno=$(( $lineno + 1 ))
done
echo ""
cat tmpfile
#+END_SRC
#+RESULTS: import
:
: 0 | 0 | 1
: 0 | 1 | 2
: 1 | 0 | 3
: 1 | 1 | 4
And I can call it with:
#+CALL: import(table=table)
And I get the results I want
But when I tangle it out, the tangled file defines "table" like this:
unset table
declare -A table
table['1']='2'
table['3']='4'
And then the algorithm does not work.
Am I doing something incorrectly here with respect to executing babel blocks inside Emacs v. tangling to external files? Any suggestions how to get similar behavior inside emacs and outside emacs?
Thanks,
-k.
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