[Webkit-unassigned] [Bug 260857] New: Line break between Chinese/Japanese letters SHOULD be removed instead of replaced with a space

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=260857

            Bug ID: 260857
           Summary: Line break between Chinese/Japanese letters SHOULD be
                    removed instead of replaced with a space
           Product: WebKit
           Version: Safari 15
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tats.u at live.jp

Created attachment 467479

  --> https://bugs.webkit.org/attachment.cgi?id=467479&action=review

iOS Safari 15 preview of https://codepen.io/tats-u/pen/YzdKKyN

Firefox (OK): https://bugzilla.mozilla.org/show_bug.cgi?id=450088
Chromium: https://bugs.chromium.org/p/chromium/issues/detail?id=1473297

## What steps will reproduce the problem?

(1) See http://wyw.dcweb.cn/ff3_lb.html (referenced from the Firefox issue page) or https://codepen.io/tats-u/pen/YzdKKyN

## What is the expected result?

No extra spaces between Chinese / Japanese letters

## What happens instead?

Extra spaces are inserted into Chinese or Japanese sentences

## Please provide any additional information below. Attach a screenshot if
possible.

In Firefox,

- Newline between Chinese/Japanese and western/number/Korean => space
- Chinese/Japanese include CJK punctuation marks (e.g. 。、．，「」（）)

https://codepen.io/tats-u/pen/poQQVyR


CSS Text Module Level 4 (exists since Level 3):

https://drafts.csswg.org/css-text-4/#line-break-transform

See the EXAMPLE 19.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20230829/6391c01d/attachment.htm>