[css-text-3][css-text-4] Clarify interaction of `word-break: keep-all` and hyphenation
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Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 64/100
- Issue type
- Documentation
- Clarity
- Mostly clear
- Activity status
- Quiet
- Tech stack
- css
- Domain
- documentation
Research direction
Start with the CSS Text Level 3 word-break: keep-all definition linked in the issue, then compare its existing dictionary-based breaking exception with the hyphenation behavior under discussion. Done means the specification text clearly states whether that exception also covers hyphenation in both CSS Text 3 and CSS Text 4.
Written by the indexing model from the issue text.
Description
The current definition of word-break: keep-all https://www.w3.org/TR/css-text-3/#valdef-word-break-keep-all
Breaking is forbidden within “words”: implicit soft wrap opportunities between typographic letter units (or other typographic character units belonging to the NU, AL, AI, or ID Unicode line breaking classes [UAX14]) are suppressed, i.e. breaks are prohibited between pairs of such characters (regardless of line-break settings other than anywhere) except where opportunities exist due to dictionary-based breaking.
It might be useful to clarify that the exception applies to hyphenation as well.
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