- From: Fuqiao Xue via GitHub <sysbot+gh@w3.org>
- Date: Tue, 19 May 2020 15:15:29 +0000
- To: public-css-archive@w3.org
> Note: A commonly used algorithm for determining this behavior is specified in [JLREQ]. This sentence is current mentioned in the description of [ideograph-alpha](https://www.w3.org/TR/css-text-4/#valdef-text-spacing-ideograph-alpha) and [ideograph-numeric](https://www.w3.org/TR/css-text-4/#valdef-text-spacing-ideograph-numeric). I think they're mentioned in [3.2.6 d of jlreq](https://w3c.github.io/jlreq/#id209): > Inter-character spacing, between hiragana (cl-15), katakana (cl-16) or ideographic characters (cl-19) and Western characters or European numerals, is quarter em spacing Appendix B (the link provided by @frivoal) seems to be a superset of it, because it contains a [table](https://w3c.github.io/jlreq/tables/table_en2.pdf), and the amount of spacing between two adjacent characters of all character classes, including ideographs and non-ideographic letters/numerals, are in it. ----- FWIW, in clreq, it is mentioned in [§ 3.2.2 Mixed Text Composition in Horizontal Writing Mode](https://w3c.github.io/clreq/#mixed_text_composition_in_horizontal_writing_mode): > In principle, there is tracking or spacing between an adjacent Han character and a Western character of up to one quarter of a Han character width, except at the line start or end. And [§ 3.2.4 Handling Western Text in Chinese Text Using Proportional Western Fonts](https://w3c.github.io/clreq/#handling_western_text_in_chinese_text_using_proportional_western_fonts): > Tracking or spacing between a Han character and a Western letter or numeral is up to a quarter of the width of a Han character. -- GitHub Notification of comment by xfq Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/5048#issuecomment-630889749 using your GitHub account
Received on Tuesday, 19 May 2020 15:15:31 UTC