Define that (and how) glyph assemblies are mirrored in rtl formulas
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Description
(This is part of the I18n WG review.)
B.4 Unicode-based Glyph Assemblies
https://www.w3.org/TR/mathml-core/#unicode-based-glyph-assemblies
Maybe this section should say explicitly that the glyph assemblies are mirrored in right-to-left formulas. Firefox and Safari mirror them already, Chromium doesn't (but maybe that's an implementation bug).
Unicode defines for some symbols what their mirrored versions are, but it doesn't do so for these ‘extension’ characters. So maybe the MathML Core spec itself should list the mirrored glyphs. It could add them as an extra column in the table.
(The Unicode Technical Committee is still looking into whether to define some of these extension symbols as mirrored in a future version of Unicode, based on a larger proposal from 2022 (‘Glyph mirroring: ExtraMirroring.txt’).)
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Read section B.4 of the MathML Core specification and compare its glyph-assembly table with the Unicode mirroring material linked in the issue. Check the reported Firefox, Safari, and Chromium behavior, then clarify the specification's required RTL behavior and whether mirrored glyphs belong in the table.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100