1835850 - Dutch Ij should not be selected as a single grapheme by ::first-letter

Status: VERIFIED FIXED

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

Description

[Richard Ishida]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/112.0

Steps to reproduce:

When 'IJ' appear together at the beginning of a paragraph (eg. in "IJzertoren is een toren en vredes­monument in de West-Vlaamse stad Diksmuide."), both the first two letters should be highlighted.

That was fixed in https://bugzilla.mozilla.org/show_bug.cgi?id=92176 (Thank you.)

On the other hand, 'Ij' should not be converted to 'IJ', if it occurs, since it may relate to (rare) nouns such as Ijad, Ijara, Ijaw, Ijaz, Ijebu, Ijenda, Ijeoma, Ijewere, Ijima, Ijja, Ijlal, Ijo, Ijobalit, Ijumaa and probably others.

Actual results:

However, Gecko also selects 'Ij', which is not correct.

Interactive test Dutch IJ are selected as a single grapheme by ::first-letter
https://github.com/w3c/line_paragraph_tests/issues/56

Interactive test Ij is non ambiguously not Dutch IJ nor Dutch ij and should not be selected as a single grapheme for ::first-letter.
https://github.com/w3c/line_paragraph_tests/issues/85

Expected results:

Gecko should continue to select 'ij' and 'IJ', but not select 'Ij'.

[This is being tracked by the W3C at https://github.com/w3c/eurlreq/issues/6]

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Layout: Text and Fonts' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Jonathan Kew [:jfkthame]]

Attachment: Bug 1835850 - CSS ::first-letter should select Dutch 'ij' or 'IJ' as a unit, but not mixed-case 'Ij'. r=#layout-reviewers

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7789262f482a
CSS ::first-letter should select Dutch 'ij' or 'IJ' as a unit, but not mixed-case 'Ij'. r=emilio,jwatt

Comment 4

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/40333 for changes under testing/web-platform/tests

Comment 5

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/7789262f482a

Comment 6

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot

Comment 7

[Rares Doghi, Desktop QA]

This issue is Verified as fixed in our latest Release 115, Beta as well as Nightly builds.