nested list indentation of 4 spaces causes <pre> blocks in hugo

[sprajagopal]

Actual Behavior

I am exporting my org files with ox-hugo. I opened an issue but it seems this behaviour as per markdown spec.
I went through ox-hugo.el and found reference to tabSizeEight which may solve this issue. But I am not sure how to enable this extension.

Expected Behavior

Nested lists should not have 4 space indent.

How to Reproduce the Issue

Export the following org file.

Example Org File

#+TITLE: hugo nested lists issue
#+SETUPFILE: hugo_setup.org
* Level 2
** Level 3
*** Level 4
**** Level 5
***** Level 6
****** Level 7
******* Level 8
******** Level 9
********* Level 10

Generated Markdown File or Error

+++
title = "hugo nested lists issue"
author = ["pp"]
lastmod = 2020-04-07T22:54:49+05:30
draft = false
+++

## Level 2 {#level-2}


### Level 3 {#level-3}


#### Level 4 {#level-4}


##### Level 5 {#level-5}


###### Level 6 {#level-6}

-    Level 7

    -    Level 8

        -    Level 9

            -    Level 10

Ox-Hugo Debug Information

Debug Info

[kaushalmodi]

I can reproduce that on this commonmark dingus (somehow that link doesn't work for me on Firefox, but works on Chrome).

Can you play around with that can come up with a markdown format that acts as a workaround?

---

I went through ox-hugo.el and found reference to tabSpaceEight which may solve this issue.

I am not aware of tabSpaceEight (just grepped through the whole ox-hugo repo; didn't find anything. Can you provide a reference? If it's an extension, it would go in your hugo site's config.toml.

[kaushalmodi]

OK, look like it works if I remove those extra spaces from after the hyphen: demo

[kaushalmodi]

Turns out that the extras spaces after the hyphens are coming from somewhere in ox.el. I'll need some time to figure that out. Nope.. need to fix org-blackfriday-item org-hugo-headline.

[kaushalmodi]

@sprajagopal Can you confirm the fix?

I have added a test case for this: https://ox-hugo.scripter.co/test/posts/level-offset-default/

Thanks for reporting this!

[sprajagopal]

Hello,
I updated and tried this now. The resulting markdown is as follows.

## Level 2 {#level-2}
### Level 3 {#level-3}
#### Level 4 {#level-4}
##### Level 5 {#level-5}
###### Level 6 {#level-6}

<!--list-separator-->

-  Level 7

    <!--list-separator-->

    -  Level 8

        <!--list-separator-->

        -  Level 9

            <!--list-separator-->

            -  Level 10

It renders correctly in html also with hugo.
Thanks a lot for a superfast fix!
( I expected someone would comment a workaround not that the actual issue would be fixed overnight :D)

[sprajagopal]

I can reproduce that on this commonmark dingus (somehow that link doesn't work for me on Firefox, but works on Chrome).

Can you play around with that can come up with a markdown format that acts as a workaround?

I went through ox-hugo.el and found reference to tabSpaceEight which may solve this issue.

I am not aware of tabSpaceEight (just grepped through the whole ox-hugo repo; didn't find anything. Can you provide a reference? If it's an extension, it would go in your hugo site's config.toml.

Sorry I typoed. It was tabSizeEight in ox-hugo.el

(defvar org-hugo-blackfriday-extensions                                                                                                                                     
  '("noIntraEmphasis"                                                                                                                                                       
    "tables"                                                                                                                                                                
    "fencedCode"                                                                                                                                                            
    "autolink"                                                                                                                                                              
    "strikethrough"                                                                                                                                                         
    "laxHtmlBlocks"                                                                                                                                                         
    "spaceHeaders"                                                                                                                                                          
    "hardLineBreak"                                                                                                                                                         
    "tabSizeEight"                                                                                                                                                          
    "footnotes"                                                                                                                                                             
    "noEmptyLineBeforeBlock"                                                                                                                                                
    "headerIds"                                                                                                                                                             
    "titleblock"                                                                                                                                                            
    "autoHeaderIds"                                                                                                                                                         
    "backslashLineBreak"                                                                                                                                                    
    "definitionLists"                                                                                                                                                       
    "joinLines")   

[kaushalmodi]

It was tabSizeEight in ox-hugo.el

Ah right! It's been a while since I added that. Those are Blackfriday extensions, and will not work with Goldmark. Both are Markdown rendering libraries. Goldmark is a much better one as it is compliant with commonmark. Hugo switched to making Goldmark as the default library since Hugo 0.60.0. At some point, I will move out the dead Blackfriday code in this repo to a separate library in an archived state.