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[css-text-4] Clarify fonts without enough blank may not be trimmed #9225

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merged 4 commits into from
Oct 30, 2023

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kojiishi
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To address the risk mentioned at #8292, this change allows UA to not to trim when there's not enough blank.

@kojiishi kojiishi marked this pull request as ready for review August 23, 2023 04:35
@kojiishi kojiishi requested a review from fantasai August 23, 2023 04:35
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Hey @fantasai, I heard from @chrishtr that you agree UA may not trim when doing so can cause excessive kerning. Can you review this change and see if this describes it?

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kojiishi commented Sep 1, 2023

Reworded a bit, hope this is better English ;-)

@@ -8337,6 +8337,13 @@ Fullwidth Punctuation Collapsing</h4>
the font has proportional ideographs
and the fullwidth advance width cannot be reliably determined by measuring glyphs.

Some fonts have fullwidth punctuation characters
whose blank are too small to trim (kern.)
UA may not trim (kern)
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Suggested change
UA may not trim (kern)
UA may choose not to trim (kern)

Otherwise "may not" is ambiguous, and could be seen as meaning the same as "must not"

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Done, thank you for the review.

@kojiishi kojiishi merged commit 5159802 into w3c:main Oct 30, 2023
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2 participants