Add text to describe what should happen when not using an OpenType font
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- Dominant language
- HTML
- Stars
- 56
- Forks
- 20
- PR merge metrics
- No merged PRs in 30d
Description
The algorithms in the spec are written assuming that one has an OpenType font. This is related to w3c/mathml-core#116, which is about fallback layout params in the tables. However, that doesn't cover (at least) two other cases:
- What to do about stretchy chars.
- Fallback order to find fonts when chars are missing (particularly for pieces of stretchy chars)
Some (many) fonts will lack stretchy chars or if they have them, something other than the (not defined for the font) OpenType tables need to be used or a font fallback is needed.
CSS defines how font fallback works, including at a character level. Because of the needs of math, perhaps we need to specify some that some additional OpenType with math table fonts should be added to the fallback list by the renderer.
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First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
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Research direction
Start by reading the spec algorithms and the related w3c/mathml-core#116 issue about fallback layout parameters in the tables. Define what the specification should say for stretchy characters and character-level font fallback when OpenType math data or glyphs are missing; done means both cases and the possible fallback ordering are explicitly covered.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- css
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100