More complete support of section 5 of UTR #50
Categories
(Core :: Graphics: Text, defect)
Tracking
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People
(Reporter: t.matsuu, Unassigned, NeedInfo)
References
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Details
In the bug 1164835, section 5 of UTR #50 (Glyphs Changes for Vertical Orientation) has been partially supported.
However, this table does not fully support the "5 Glyphs Changes for Vertical Orientation" in UTR #50.
I am not sure what criteria was used to select the characters to create this table.
For more complete implementation, the table should be updated or UVerticalOrientation from ICU should be used.
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Comment 1•4 months ago
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I have no time to investigate this now. We use the latest version (VerticalOrientation-17.txt) of Vertical property. So I guess that it will not be resolved by ICU functions instead.
Also, could you attach HTML test case?
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Reporter | |
Comment 2•4 months ago
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(In reply to Makoto Kato [:m_kato] from comment #1)
the latest version (VerticalOrientation-17.txt)
It's not the latest.
The latest version is available from https://www.unicode.org/Public/UNIDATA/VerticalOrientation.txt.
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Comment 3•4 months ago
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(In reply to Takanori MATSUURA from comment #0)
In the bug 1695816
bug 1164835
Sorry for citing wrong bug (comment #0 is now updated).
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Comment 4•4 months ago
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We may be able to generate sVerticalForms list in gfx/thebes/gfxHarfBuzzShaper.cpp from the Character_Decomposition_Mappings field of UnicodeData.txt which is downloaded by intl/unicharutil/tools/genUnicodePropertyData.pl.
I'm worried about the pdfjs because they simply copy the sVerticalForms list from m-c to their source to fix bug 1905623.
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Updated•4 months ago
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Description
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