Mediawiki image formatting from markdown decorators

[madaster97]

Hi there, I'm like 99% happy with taking notes in markdown and using pandoc to create publishable mediawiki files!

One missing piece (or at least that I couldn't find how to do), is to have inline images in md where I can specify what output formatting goes into the mediawiki.

Like: ![](GET IN LOSER.jpg) becomes [[File:GET IN LOSER.jpg]], and this is great!

BUT, I'd love if I could somehow get a format to pull through, so output like [[File:GET IN LOSER.jpg|thumb]]

So my workflow would more-or-less be:

1. Render my markdown as-above without any decorator
2. Import the image into mediawiki, and decide what formatting I'd like
3. Back-document those formatting decisions into my markdown, so re-renders don't lose the content!

I do a quick diff after my re-render anyway, so I can at least scan for / catch the loss of formatting before I overwrite it, but I'd love if there were any way to document it in my markdown!

I did notice some prior art in the implicit_figures documentation, how you can do something like this for LaTeX:

For LaTeX output, you can specify a figure’s positioning by adding the latex-placement attribute.

![The caption.](image.png){latex-placement="ht"}

[jgm]

What should the attribute be called? {formatting=thumb}?