[Webkit-unassigned] [Bug 177327] Implement overflow-wrap:break-spaces value

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=177327

--- Comment #2 from Myles C. Maxfield <mmaxfield at apple.com> ---
(In reply to Javier Fernandez from comment #1)
> I'm asking Blink and Gecko engineers about the plans to implement this
> feature. It'd be great to have an idea about the WebKit position and its
> level of support to implement this.

It would be really great if we could rely on ICU more to handle more cases of line breaking. As I understand it, ICU aspires to handle all the line-breaking situations that are describable in CSS. Given this, I think we'd be happy to pass more information to ICU to describe the environment about how to do line breaking. If ICU doesn't currently support overflow-wrap:break-spaces behavior, we shouldn't implement it in WebKit; we should instead either wait for ICU or specifically ask ICU to support it. If ICU thinks that they will never support overflow-wrap:break-spaces behavior, we should push against it in the W3C.

Regardless of what ICU's stance or current support level is, we should start on the task of deleting more of WebKit's line breaking code in favor of using ICU. This involves a few different tasks:
1) Discovering which parts of CSS-Text ICU already supports
2) Measuring the performance of their line breaking algorithms, and, if necessary implement some system (caching?) to try to speed it up.

This project is something I'd like to do in the coming years.

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