Bug: Org async export fails with invalid read syntax “#” [9.4.4 (release_9.4.4 @ /Users/iostapyshyn/emacs/nextstep/Emacs.app/Contents/Resources/lisp/org/)]

Bug: Org async export fails with invalid read syntax “#” [9.4.4 (release_9.4.4 @ /Users/iostapyshyn/emacs/nextstep/Emacs.app/Contents/Resources/lisp/org/)]

[Illia Ostapyshyn]

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When exporting asynchronously with an essentially empty org-export-async-init-file, the
process fails with this backtrace:

Debugger entered--Lisp error: (invalid-read-syntax "#" 1 0)
  read(#<buffer  *load*>)
  load-with-code-conversion("/var/folders/1q/6syg63894h5bqlwp2jdh8r440000gn/T/o..." "/var/folders/1q/6syg63894h5bqlwp2jdh8r440000gn/T/o..." nil t)
  command-line-1(("-l" "/Users/iostapyshyn/.emacs.d/org-export.el" "-l" "/var/folders/1q/6syg63894h5bqlwp2jdh8r440000gn/T/o..."))
  command-line()
  normal-top-level()

I have tracked the issue down to this bit in org-export-process tmpfile:

(or (ignore-errors (funcall '#<subr F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_77>
"paper.tex")) ...

Read doesn't like the '# syntax, seems like it should have been #' instead. I have quoted
the post-process lambda in org-latex-export-to-pdf (see attached diff) and it seems to
have fixed the issue for me. However it doesn't seem like a proper solution.

Emacs  : GNU Emacs 28.0.50 (build 1, x86_64-apple-darwin20.5.0, NS appkit-2022.50 Version 11.4 (Build 20F71))
 of 2021-06-20
Package: Org mode version 9.4.4 (release_9.4.4 @ /Users/iostapyshyn/emacs/nextstep/Emacs.app/Contents/Resources/lisp/org/)


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diff -u --label /Users/iostapyshyn/emacs/lisp/org/ox-latex.el --label /Users/iostapyshyn/emacs/nextstep/Emacs.app/Contents/Resources/lisp/org/ox-latex.el.gz /Users/iostapyshyn/emacs/lisp/org/ox-latex.el /var/folders/1q/6syg63894h5bqlwp2jdh8r440000gn/T/jka-comShObnq
--- /Users/iostapyshyn/emacs/lisp/org/ox-latex.el
+++ /Users/iostapyshyn/emacs/nextstep/Emacs.app/Contents/Resources/lisp/org/ox-latex.el.gz
@@ -3633,7 +3633,7 @@
   (let ((outfile (org-export-output-file-name ".tex" subtreep)))
     (org-export-to-file 'latex outfile
       async subtreep visible-only body-only ext-plist
-      (lambda (file) (org-latex-compile file)))))
+      '(lambda (file) (org-latex-compile file)))))
 
 (defun org-latex-compile (texfile &optional snippet)
   "Compile a TeX file.

Diff finished.  Sun Jun 20 12:22:50 2021

Re: Bug: Org async export fails with invalid read syntax “#” [9.4.4 (release_9.4.4 @ /Users/iostapyshyn/emacs/nextstep/Emacs.app/Contents/Resources/lisp/org/)]

[Nicolas Goaziou]

Hello,

Illia Ostapyshyn <ilya.ostapyshyn@gmail.com> writes:

> When exporting asynchronously with an essentially empty org-export-async-init-file, the
> process fails with this backtrace:
>
> Debugger entered--Lisp error: (invalid-read-syntax "#" 1 0)
>   read(#<buffer  *load*>)
>   load-with-code-conversion("/var/folders/1q/6syg63894h5bqlwp2jdh8r440000gn/T/o..." "/var/folders/1q/6syg63894h5bqlwp2jdh8r440000gn/T/o..." nil t)
>   command-line-1(("-l" "/Users/iostapyshyn/.emacs.d/org-export.el" "-l" "/var/folders/1q/6syg63894h5bqlwp2jdh8r440000gn/T/o..."))
>   command-line()
>   normal-top-level()

Thanks. There was another report about this a while ago.

> -      (lambda (file) (org-latex-compile file)))))
> +      '(lambda (file) (org-latex-compile file)))))

What happens if you replace 

  (lambda ...)

with

  #'org-latex-compile 

Regards,
-- 
Nicolas Goaziou