Bug 171942 – Unicode characters which can't be rendered in any font are invisible

• Component: New Bugs
• Status: RESOLVED FIXED

[Myles C. Maxfield]

Unicode characters which can't be rendered in any font are invisible

[Myles C. Maxfield]

Created attachment 309627 [details]
Patch

[Myles C. Maxfield]

<rdar://problem/32054234>

[Build Bot]

Comment on attachment 309627 [details]
Patch

Attachment 309627 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/3713641

New failing tests:
fast/text/softbank-emoji.html

[Build Bot]

Created attachment 309632 [details]
Archive of layout-test-results from ews100 for mac-elcapitan

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews100  Port: mac-elcapitan  Platform: Mac OS X 10.11.6

[Build Bot]

Comment on attachment 309627 [details]
Patch

Attachment 309627 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/3713732

New failing tests:
fast/text/softbank-emoji.html

[Build Bot]

Created attachment 309638 [details]
Archive of layout-test-results from ews107 for mac-elcapitan-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews107  Port: mac-elcapitan-wk2  Platform: Mac OS X 10.11.6

[Build Bot]

Comment on attachment 309627 [details]
Patch

Attachment 309627 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/3713693

New failing tests:
fast/text/softbank-emoji.html

[Build Bot]

Created attachment 309639 [details]
Archive of layout-test-results from ews115 for mac-elcapitan

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews115  Port: mac-elcapitan  Platform: Mac OS X 10.11.6

[Myles C. Maxfield]

Created attachment 309739 [details]
Patch

[Myles C. Maxfield]

Comment on attachment 309739 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=309739&action=review

> Source/WebCore/ChangeLog:12
> +        Default_Ignorable_Code_Point property, because this is what CoreText does.

Mention:

1. In UTR #36 Unicode Security Considerations:
http://www.unicode.org/reports/tr36/#Recommendations_General
"If there is no available glyph for a character, never show a simple "?" or omit the character."

2. Unicode Standard section 5.3 Unknown and MIssing Characters, starting at page marked 203 in the following:
http://www.unicode.org/versions/Unicode9.0.0/ch05.pdf

[Tim Horton]

Comment on attachment 309739 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=309739&action=review

> LayoutTests/fast/text/default-ignorable-expected.html:6
> +This test makes sure that code point which have the Default_Ignorable_Code_Point property are not rendered. The test passes if you don't see anything below.

code point*s*?

[Myles C. Maxfield]

Committed r216874: <http://trac.webkit.org/changeset/216874>