[Webkit-unassigned] [Bug 195176] New: [css-values-4] Support ic unit ("水" CJK water ideograph, U+6C34)
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Feb 28 11:28:57 PST 2019
https://bugs.webkit.org/show_bug.cgi?id=195176
Bug ID: 195176
Summary: [css-values-4] Support ic unit ("水" CJK water
ideograph, U+6C34)
Product: WebKit
Version: Safari Technology Preview
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: CSS
Assignee: webkit-unassigned at lists.webkit.org
Reporter: browserbugs2 at gtalbot.org
CSS4 Values and Units, 6.1.1. Font-relative lengths section, ic unit
https://www.w3.org/TR/css-values-4/#ic
states
"
ic unit
Equal to the used advance measure of the “水” (CJK water ideograph, U+6C34)
glyph found in the font used to render it.
This measurement is a typically an exact measure (in the few fonts with
proportional fullwidth glyphs, an approximation) of a **single fullwidth
glyph’s advance measure**, thus allowing measurements based on an expected
glyph count.
In the cases where it is impossible or impractical to determine the
ideographic advance measure, it must be assumed to be 1em.
"
9 Tests
-------
In horizontal-tb writing-mode:
http://w3c-test.org/css/css-values/ic-unit-001.html
With text-orientation: upright; and writing-mode: vertical-rl;
http://w3c-test.org/css/css-values/ic-unit-002.html
With text-orientation: mixed; and writing-mode: vertical-rl;
http://w3c-test.org/css/css-values/ic-unit-003.html
With text-orientation: sideways; and writing-mode: vertical-rl;
http://w3c-test.org/css/css-values/ic-unit-004.html
In horizontal-tb writing-mode:
http://w3c-test.org/css/css-values/ic-unit-008.html
With (initial) text-orientation: mixed; and writing-mode: vertical-rl;
http://w3c-test.org/css/css-values/ic-unit-009.html
With text-orientation: mixed; and writing-mode: vertical-rl;
http://w3c-test.org/css/css-values/ic-unit-010.html
With text-orientation: upright; and writing-mode: vertical-rl;
http://w3c-test.org/css/css-values/ic-unit-011.html
With text-orientation: sideways; and writing-mode: vertical-rl;
http://w3c-test.org/css/css-values/ic-unit-012.html
Right now, no browser supports any of these 9 tests
https://wpt.fyi/results/css/css-values?label=master
I searched for duplicate and did not find any.
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