Re: Bug: campany-capf throwing an error in org-mode, while entering header args [9.4.6 (9.4.6-12-gdcc3a8-elpaplus @ /home/mypc/.emacs.d/elpa/org-plus-contrib-20210809/)]

[Tim Cross]

Is this something which should really be reported to the company-capf
maintainers?

C K <hadoopchetan@gmail.com> writes:

> Remember to cover the basics, that is, what you expected to happen and
> what in fact did happen.  You don't know how to make a good report?  See
>
>      https://orgmode.org/manual/Feedback.html#Feedback
>
> Your bug report will be posted to the Org mailing list.
> ------------------------------------------------------------------------
>
> campany-capf throwing an error in org-mode, while entering header args
>
> #### Error in `*Messages*` buffer
>
> ```
> Company: backend company-capf error "Wrong type argument: char-or-string-p, 
> nil" with args (prefix)
> ```
>
> #### Steps to reproduce
>
> - emacs -Q
> - `(add-to-list 'load-path "~/.emacs.d/elpa/company-20210811.214/")`
> - `M-x load-library` `company`
> - Open a org-mode buffer
> - enable `company-mode`
> - enter the example below, you will get the error when typing `:var`
>
> ```
> #+Name: get-env
> #+begin_src emacs-lisp
> (print "hello")
> #+end_src
>
> #+begin_src emacs-lisp :var env=get-env()
> (print env)
> #+end_src
> ```
>
> #### Expected behavior
> This should not trigger an error.
>
> #### The error backtrace
>
> ```
> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
>   org-babel-balanced-split(nil 32)
>   #f(compiled-function (pair) #<bytecode -0x58ac6fff72dc116>)((:var))
>   org-babel-parse-multiple-vars(((:var)))
>   org-babel-parse-header-arguments(":var" light)
>   #f(compiled-function (h) #<bytecode -0x1422a9568baa5a8e>)(":var")
>   org-babel-get-src-block-info(light)
>   pcomplete/org-mode/block-option/src()
>   pcomplete-completions()
>   pcomplete-completions-at-point()
>   completion--capf-wrapper(pcomplete-completions-at-point optimist)
>   company--capf-data-real()
>   company--capf-data()
>   company-capf(prefix)
>   apply(company-capf prefix)
>   company-call-backend-raw(prefix)
>   company--force-sync(company-call-backend-raw (prefix) company-capf)
>   company-call-backend(prefix)
>   company--continue()
>   company--perform()
>   company-post-command()
>
> ```
>
> with `C-M-i` I get this error in messages buffer
>
> ```
> Error in post-command-hook (completion-in-region--postch): 
> (wrong-type-argument char-or-string-p nil)
> ```
>
> trace -
>
> ```
> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
>   org-babel-balanced-split(nil 32)
>   #f(compiled-function (pair) #<bytecode 0x1086521bcdc902ea>)((:var))
>   org-babel-parse-multiple-vars(((:var)))
>   org-babel-parse-header-arguments(":var" light)
>   #f(compiled-function (h) #<bytecode -0x1422a956b59ad8ce>)(":var")
>   org-babel-get-src-block-info(light)
>   pcomplete/org-mode/block-option/src()
>   pcomplete-completions()
>   pcomplete-completions-at-point()
>   completion--capf-wrapper(pcomplete-completions-at-point optimist)
>   company--capf-data-real()
>   company--capf-data()
>   company-capf(prefix)
>   apply(company-capf prefix)
>   company-call-backend-raw(prefix)
>   company--force-sync(company-call-backend-raw (prefix) company-capf)
>   company-call-backend(prefix)
>   company--begin-new()
>   company--perform()
>   company-auto-begin()
>   company-idle-begin(#<buffer test.org> #<window 3 on test.org> 230 95)
>   apply(company-idle-begin (#<buffer test.org> #<window 3 on test.org> 230 
> 95))
>   timer-event-handler([t 24857 34109 966818 nil company-idle-begin (#<buffer 
> test.org> #<window 3 on test.org> 230 95)
> nil 848000])
>
> ```
>
> Emacs  : GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 
> 3.24.20, cairo version 1.16.0)
>  of 2021-07-22
> Package: Org mode version 9.4.6 (9.4.6-12-gdcc3a8-elpaplus @ 
> /home/mypc/.emacs.d/elpa/org-plus-contrib-20210809/)