1293584 - CSS "word-break: keep-all;" fails to break the text at CJK punctuations

Status: RESOLVED FIXED

(Core :: Layout: Text and Fonts, defect, P3)

Description

[Danny Lin]

Attachment: The reduced demo of this issue

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0
Build ID: 20160726073904

Steps to reproduce:

See the attachment issue_demo.html.

According to CSS3 spec, a CJK punctuation char, such as "，", "。", etc, should be a candidate for word break when "word-break: keep-all;" is declared. Both IE and Chrome implement "word-break: keep-all;" in this way, but Firefox does not.


Actual results:

The text is never wrapped at a CJK punctuation such as  "，", "。", etc.


Expected results:

The text should be wrapped at a CJK punctuation, such as  "，", "。", etc, if it exceeds the element width.

Comment 1

[Danny Lin]

Attachment: Expected behavior: text wrappable at CJK punctuatons

Comment 2

[Danny Lin]

Attachment: Actual behavior: text not wrappable at CJK punctuatons

Comment 3

[Tooru Fujisawa [:arai]]

work-break was added by bug 249159
。 (U+3002) is mentioned bug 249159 comment #40

Comment 4

[Jonathan Kew [:jfkthame]]

Attachment: Bug 1293584 - Fix implementation of word-break:keep-all to better follow the spec. r=m_kato

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/cf48dfafa73c
Fix implementation of word-break:keep-all to better follow the spec. r=m_kato

Comment 7

[Stefan Hindli [:stefan_hindli]]

https://hg.mozilla.org/mozilla-central/rev/cf48dfafa73c