- From: Florian Rivoal via GitHub <sysbot+gh@w3.org>
- Date: Mon, 02 Sep 2024 07:40:21 +0000
- To: public-css-archive@w3.org
I agree with the above logic, as well as with the tests introduced in https://github.com/web-platform-tests/wpt/pull/44384.
@fantasai, can you have a look too and see if you agree?
As for the spec
* I believe that hanging things followed by non hanging things doesn't need clarification. If they're not at the end of the line, they don't hang, that seems covered.
* We might want to clarify the cases where we have both conditionally and unconditionally hanging things at the end of the line. The way I described it and that @andreubotella wrote tests for seems sound to me, but whether it is fully supported by the spec, I'm less sure. We could clarify by adding the following to the last paragraph of [9.2](https://drafts.csswg.org/css-text-4/#hanging):
> When (unconditionally) hanging glyphs at the end of the line are immediately preceded by conditionally hangable glyphs, the condition for whether to hang those glyphs is evaluated as usual, as if the unconditionally hanging glyphs were not there. Conversely When conditionally hangable glyphs at the end of the line are immediately preceded by (unconditionally) hangable glyphs, the unconditionally hangable glyphs hang if and only if all subsequent conditionally hangable glyphs do indeed hang; otherwise, the (unconditionally) hangable glyphs are effectively not at the end of the line and do not get to hang.
An alternative interpretation for the last case could be that any sequence of unconditionally hangable glyphs followed conditionally hangable glyphs becomes conditionally hangable as well. Honestly, while I can construct cases where this happens, I'm having a hard time thinking realistic cases where this would matter.
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