New markdown attribute and render hooks

[jmooring]

@Mehdi_Saada

Also, in my hook the paragraph is inside the figcaption tag, not the other way around, so what do you mean by that You cannot place a figure within a p element ?

Look at the HTML generated by this markdown. In both cases the image (or whatever the image render hook produces) is wrapped within a p element. That is how markdown is rendered to HTML per the CommonMark specification.

So if your image render hook produces a figure element, it will be wrapped within a p element, which is invalid HTML.

@Mehdi_Saada

And until now it worked pretty well !

If you run the rendered page through an HTML validator, it will fail.

@Mehdi_Saada

There is no other way to get nice captions

This is not true. Use the embedded figure shortcode, or create your own, or simulate a figure element using span elements. More info in this topic.