Perhaps it could be useful to expose the hint as data-hint as well and show it as a CSS pseudo-element. People could then make the hints show on hover/click or create tooltips:

{{c1::hidden text::hint}}

<span class="cloze" data-cloze="hidden text" data-hint="hint"></span>

A disadvantage of this approach is that pseudo-elements are not selectable since they're not part of the DOM.

No objections to adding hint as well, though let's avoid pseudo elements for now.

Considering the hint is available as the innerHTML of a cloze anyway, I think I'll hold back on adding it as an attribute until a proper cloze overhaul is in the works. If the attribute isn't used by Anki itself (i.e. as pseudo-element content), it is redundant.

Sounds good. Thanks Matthias!

Thanks @kleinerpirat for the implementation! Can hardly wait for the update to reach me. Added another idea to my suggestion in our last chat to expand the 'Cloze', which certainly has many practical applications. Would be very happy if these could be incorporated as well. Although this rather requires a revision of the backend.

https://forums.ankiweb.net/t/an-improved-implementation-of-cloze-to-enable-sequential-uncovering/21489/9

Proposal: A text cloze should be able to be assigned to several groups.

current: {{group::value::hint}}
proposal: {{group1,group2,group3::value::hint}}

Template:

The {{c1,c2::quick}} brown {{c2,c3::fox}} jumps over the lazy dog

Cards:

The [...] brown fox jumps over the lazy dog

The [...] brown [...] jumps over the lazy dog

The quick brown [...] jumps over the lazy dog

To follow up with an additional suggestion that should be easy to implement with few maintenance issues: increase the meta data to allow easier addon creation:

• Hint (as @kleinerpirat suggested)
• Cloze ordinal
• Wrap inactive clozes (i.e. the "other" clozes) in a <span> as well with the same meta data and a specific class, eg inactive.

So something like this
The {{c1::quick::speed}} brown {{c2::fox}} jumped over the lazy {{c2::dog}}
⇓
The <span class="cloze" data-cloze="quick" data-hint="speed" data-ordinal="1">quick</span> brown <span class="cloze inactive" data-cloze="fox" data-hint="" data-ordinal="2">fox</span> jumped over the lazy <span class="cloze inactive" data-cloze="dog" data-hint="" data-ordinal="2">dog</span>

It would be easy enough to make such a PR if there is an indication of it being welcome?

I'd be fine with accepting such a PR.