Styling the Post Terms divider

[jffng]

It would be nice to be able to customize the divider between post terms, or at least render the divider as a pseudo element so it can be easily targeted via CSS:

Current state looks like this:

View	Mark-up

[kjellr]

Customizing this divider should definitely be possible. It also seems weird to me that the default divider is a pipe — I feel like the vast majority of themes use a comma here.

[justintadlock]

The term list functions already have a separator argument. Can we just expose that as an argument for the block? It doesn't necessarily have to be turned on in the block options panel, but theme authors could simply do:

<!-- wp:post-terms {"separator":", "} /--> 

Commas or no separator at all are the most common use cases in themes.

[aristath]

Pushed a PR in #32812 adding the missing separator attribute if anyone wants to test & review it 👍

[justintadlock]

What do you think about adding a <span class="wp-block-post-terms__sep"> wrapper? I often need it for directly targeting the separator in CSS.

[aristath]

What do you think about adding a <span class="wp-block-post-terms__sep"> wrapper? I often need it for directly targeting the separator in CSS.

Great idea. Added it to the PR 👍