Re: [csswg-drafts] [css-overflow] [css-text] Interaction between whitespace collapsing and line-clamp (#12008)

Interesting. I think there's several parts in there.

For « nowrap does not remove wrap opportunities, it just prevents wrapping » I suspect that can be changed, and have the definition of `text-wrap-mode: nowrap` say that it suppresses opportunities. In that case, yes, if the whole line (or the whole block) is set to nowrap, then that means you cannot insert the ellipsis in the middle of the line, and you either have to tack it at the very end—including after preserved spaces if any—if there's room, or have to remove the whole line to make room if there isn't, but that seems appropriate: if the content is indivisible, it is indivisible.

In terms of wrap opportunities being after, not before, spaces. I agree that we don't want the ellipsis being after a space that would otherwise be removed by phase two, so we need to do ellipsis insertion _after_ phase two.

I think the case where I'm least comfortable is when the line ends with preserved white-space (which is thus not discarded) which hang (as can happen with `white-space: pre-wrap`). This is different from the nowrap case: here, we can wrap, but we did ask for preserving. In that case, what would fall out of the above is that the ellipsis would be inserted after the space, even though the line is wrapable. This may also be the desirable behavior (the author did ask for spaces to be preserved after all), but I'm less sure.


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Received on Friday, 6 June 2025 06:53:37 UTC