[css-inline-3] Question about the relationship among text-box-trim, text-box-edge and text-line-edge.

[Clqsin45]

Hi CSS specification authors!
I'm trying to implemente these properties.
Reading #8829 (comment), I have this question in my mind. Since the specification is not updated yet, may I ask some quick questions to unblock my implementation work?

My question might be: In the case below, how should I trim the box?

<div style=”text-box-trim: ? text-box-edge: leading”> 
<span>TEXT</span>
</div>

The div tag wants to trim the half leading, while the span does not do so. In this case, should the box of

be trimmed to respect text-box-trim/text-box-edge’s value (like A)? Or should it not be trimmed to respect its inline text’s style( as B)?

(Sorry I'm very new to this world. if I asked an unclear question, please let me know!)

[Clqsin45]

cc @fantasai, @kojiishi

[fantasai]

text-box-trim on the DIV affects the line box contained by the DIV, and it doesn't impact the span. So the answer is A.

[fantasai]

(Also sorry for not responding earlier. Please feel free to email me directly if I'm not paying attention.)