[ESS] github flavor

[Tyler Smith]

Hi Stephen,

As far as I understand it, the variable 
`package-selected-packages` is used in installing packages, not 
loading them? I'm not sure.

Regardless, assuming your version of `poly-R` is reasonably 
recent, the error you get suggests it's not being loaded prior to 
you trying to call the functions it contains. If you add the 
`require` command somewhere near the beginning of your config, it 
will tell us one of three things:

- it will solve your problem, confirming that `poly-R` was not 
  being loaded for some reason with your current config (we may 
  then want to figure out why this is the case)

- it will generate an error to the effect that it can't load 
  `poly-R`, indicating that `poly-R` isn't properly installed

- it will not generate any new errors or solve your problem, 
  suggesting that your version of `poly-R` is old or corrupt

It's possible there is another problem I haven't thought of, but 
we can at least rule out these three possibilities if you try my 
suggestion.

Best,

Tyler

On Mon, Feb 14 2022, Stephen Bond wrote:

> Hi Tyler,
>
> did you see I have 
>
> '(package-selected-packages
> '(markdown-mode markdown-toc brightscript-mode use-package org 
> ess-view ess poly-R poly-markdown poly-org
> polymode))
> which was added when I installed from melpa. I think that 
> statement replaces the old style 
>
> (require 'packagename)
>
> my lisp is rudimentary, please, comment.
> Thanks
> S. 
> On Sunday, February 13, 2022, 09:02:52 PM EST, Tyler Smith 
> <tyler using plantarum.ca> wrote: 
>
> Hello Stephen,
>
> The function `poly-gfm+r-mode` is defined in the `poly-R` 
> library. 
> It needs to be loaded before you can call it. The following 
> addition to your code should do it:
>
> ```
> (require 'poly-R)
>
> (add-to-list 'auto-mode-alist
>             '("\\.[rR]md\\'" . poly-gfm+r-mode))
> ```
>
> As long as the `(require 'poly-R)` line comes before you 
> actually 
> try to open an Rmarkdown file, the specific location doesn't 
> really matter.
>
> I'll update the tutorial. Whether or not (and when) the 
> `require` 
> command is needed does depend on how you have installed 
> `polymode`. I think when I originally wrote this I had set up 
> the 
> package system to load it automatically, which is why I don't 
> provide instructions to do it explicitly in the tutorial.
>
> Best,
>
> Tyler
>
> On Sat, Feb 12 2022, Stephen Bond via ESS-help wrote:
>
>> Hello,
>>
>> I am trying to activate the github flavor by:
>>
>> (add-to-list 'auto-mode-alist
>>              '("\\.[rR]md\\'" . poly-gfm+r-mode))
>>
>> as described in 
>> https://plantarum.ca/2021/10/03/emacs-tutorial-rmarkdown/
>>
>> and get an error:
>> File mode specification error: (void-function poly-gfm+r-mode)
>>
>> I have the following in my .emacs
>>
>> (defun rmd-mode ()
>>  "ESS Markdown mode for rmd files"
>>  (interactive)
>>  ;; (setq load-path
>>  ;;  (append (list "path/to/polymode/" 
>>  "path/to/polymode/modes/")
>>  ;;      load-path))
>>  (require 'poly-R)
>>  (require 'poly-markdown)    
>>  (poly-markdown+r-mode))
>> (add-to-list 'auto-mode-alist '("\\.md" . poly-markdown-mode))
>> (add-to-list 'auto-mode-alist '("\\.Snw" . poly-noweb+r-mode))
>> (add-to-list 'auto-mode-alist '("\\.Rnw" . poly-noweb+r-mode))
>> ;; I commented out to emable gfm, markdown+r works
>> ;;(add-to-list 'auto-mode-alist '("\\.Rmd" . 
>> poly-markdown+r-mode))
>> ;; associate the new polymode to Rmd files:
>> (add-to-list 'auto-mode-alist
>>              '("\\.[rR]md\\'" . poly-gfm+r-mode))
>>
>> (custom-set-variables
>> '(markdown-command
>>    (concat "pandoc" " --from=markdown --to=html" " --standalone 
>>    --
>> mathjax --highlight-style=pygments"))
>>  '(org-agenda-files '("~/1.org"))
>>  '(package-selected-packages '(markdown-mode poly-R 
>>  poly-markdown poly-
>> org polymode ess))
>>  '(poly-pandoc-exporter
>>    #s(pm-shell-exporter unbound "pandoc" nil nil nil 
>>    pm-default-shell-
>> export-function pm-default-shell-export-sentinel nil)))
>>
>> I am afraid there is a conflict somewhere.
>> Please, advise how to cleanup my setup.
>> Thanks
>> Stephen
>>
>> ______________________________________________
>> ESS-help using r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/ess-help


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