Add lines to the highlighted code blocks?

[badlydrawnrob]

Pandoc gives the option to add lines to fenced code blocks
Anki doesn't recognise some of the features¹

• Very useful for websites
• Only moderately useful for Anki

• Is this a useful feature? It adds a ton of code.
• I think it's only useful if you're adding large chunks of code (which you shouldn't really do)

Example of syntax for numbered lines

This example has way too much code
Ideally, you should have as little code as possible to get the point across
☝️One idea per card!

``` {.elm .numberLines}
..

-- View --
view model =
  ..
    ..
    , div [ id "thumbnails" ]
        (List.map
          (viewThumbnail model.selectedUrl)  -- Apply the function
          model.photos
        )
    ..

-- Helper functions --
urlPrefix =
  "http://elm-in-action.com/"

viewThumbnail selectedUrl thumb =
  img [ src (urlPrefix ++ thumb.url)
      , classList [ ("selected", selectedUrl == thumb.url) ]
      ..
      ] []

-- Model --
{ photos =
    [ { url = "1.jpeg" }  -- Our list of urls
    , { url = "2.jpeg" }
    , { url = "3.jpeg" }
    ]
  , selectedUrl = "1.jpeg"  -- Has the url been selected?
  }

Footnotes

1. Surprise, surprise, we can't navigate to ids in Anki's desktop browser. So the only usefulness of adding lines to the code is to indicate which line we're talking about. ↩

[badlydrawnrob]

For now, I think this is an optional extra and can be added to a Child Theme if required. It could be somewhat useful to reference a number to a piece of code, but I think a better way is to strip the code back to it's absolute minimal that references the question we're asking. You could always link to a Github commit, or repo file and link to the line number like this.