- From: Chris Lilley via GitHub <sysbot+gh@w3.org>
- Date: Thu, 30 Apr 2020 15:13:55 +0000
- To: public-css-archive@w3.org
**Vertical text** 1. [ ] _It should be possible to render text vertically for languages such as Japanese, Chinese, Korean, Mongolian, etc. 2. [ ] _Vertical text must support line progression from LTR (eg. Mongolian) and RTL (eg. Japanese) 3. [ ] _By default, text decoration, ruby, and the like in vertical text where lines are stacked from left to right (eg. Mongolian) should appear on the same side as for CJK vertical text. Placement should not rely on the before and after line locations. 4. [ ] _Vertical writing modes that are equivalent to the vertical- values in CSS (only) should use UTR50 to apply default text orientation of characters. (This does not apply to writing modes that are equivalent to sideways- in CSS.) 5. [ ] _By default, glyphs of scripts that are normally horizontal should run along a line in vertical text such that the top of the character is toward the right side of the vertical line, but there should also be a mechanism to allow them to progress down the line in upright orientation. Such a mechanism should use grapheme clusters as a minimum text unit, but where necessary allow syllabic clusters to be treated as a unit when they involve more than one grapheme cluster. 6. [ ] _Upright Arabic text in vertical lines should use isolated letter forms and the order of text should read top to bottom. 7. [ ] _It should be possible for some sequences of characters (particularly digits) to run horizontally within vertical lines (tate chu yoko). 8. [ ] _Writing modes should provide values like sideways-lr and sideways-rl in CSS to allow for vertical rotation of lines of horizontal script text. UTR50 is not applicable for these cases. -- GitHub Notification of comment by svgeesus Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/5030#issuecomment-621917950 using your GitHub account
Received on Thursday, 30 April 2020 15:13:57 UTC