Re: [csswg-drafts] [css-ruby-1] Treament of multiple Latin words in space-between & space-around (#771)

For JLReq side: 

- There was one missing Note in English version of simple-ruby (filed as https://github.com/w3c/simple-ruby/issues/53), which states 'base or annotation with Western word space' (nearly equal to multi-word text) is out of scope.
- In JIS X 4051, rule of justification between base text and annotation does not use Western word space as adjustment (see issue https://github.com/w3c/simple-ruby/issues/53).
- Seems no definition in JLReq. 
- In JLReq, [one note](https://w3c.github.io/jlreq/#n121) mentions a case of using far shorter annotation than base text, and a way to set maximum size of leading and trailing spacing as half of base character could be taken for preventing misleading appearance (to tell a correct range of ruby base). See [attached figure](https://w3c.github.io/jlreq/#fig2_3_21) also.
- In certain case of Japanese digital publishing ([list of demands](http://www.ebpaj.jp/images/youbou.pdf) item 155; only in Japanese; see background etc. in [cover page](http://ebpaj.jp/counsel/youbou)), expanding Western word space for justification between base and annotation is included. (similar to one upper item, use Western word space characters for 1-2-1 spacing)
- In [discussion within JLReq TF](https://lists.w3.org/Archives/Public/public-i18n-japanese/2021JanMar/0028.html), **no strong desire was pointed**, but could be similar tendency to CLReq one.
- There are multiple difficult open questions, such as which ones (spaces between words or intercharacter points) to use for adjustment, to align leading and trailing between base and annotation (or to have spacing up to half of width of base character, etc.), and we'd keep out of scope.

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Received on Monday, 15 February 2021 07:24:39 UTC