Syntax highlight not working

[bilotAIcore]

I'm trying to get syntax (r/python) to be highlighted properly in Rmarkdown posts but sofar had 0 luck. For example, changing the pygments options only seem to affect code blocks in .md files. I would apreciate a guide on what to alter in the site source codes to make this work.

Thanks.

[susodapop]

Would you post an example of the code so we can investigate?

[jmezach]

I'm seeing the same thing. For example, I've put this into my post markdown:

```csharp
[Route("api/v2/products/{productName}/groups/{groupName}/features")]
public class FeatureV2Controller
{
    ...
    [Route("{title}/versions/{version}")]
    [HttpPost]
    public async Task<ActionResult<Feature>> PostAsync(Feature feature, string productName, string groupName, string title, string version)
    {
        if (!feature.Title.Equals(title, StringComparison.OrdinalIgnoreCase))
        ...
    }
    ...
}

And it renders like this:

As you can see it's just white text on a black background, but no highlighting of keywords or anything. Am I missing something?

[agrrh]

I managed to fix this:

$ hugo version
Hugo Static Site Generator v0.63.1-CE9ACEB7/extended linux/amd64 BuildDate: 2020-01-23T20:15:47Z

1. Generate syntax CSS style:

   hugo gen chromastyles --style=monokai > static/css/syntax-monokai.css
   

2. Enable syntax CSS and highlight settings in config:

   markup:
     highlight:
       codeFences: true
       guessSyntax: false
       hl_Lines: ""
       lineNoStart: 1
       lineNos: false
       lineNumbersInTable: true
       noClasses: false
       style: monokai  # looks like this has no effect, only imported CSS matters
       tabWidth: 4
   
   params:
     ...
     custom_css:
       - css/custom.css
       - css/syntax-monokai.css
   

Then my site properly highlight code which is just placed between "```" blocks.

References:

• https://gohugo.io/content-management/syntax-highlighting/#generate-syntax-highlighter-css
• https://gohugo.io/getting-started/configuration-markup#highlight