[11] Unicode言語タグをその判定に使えることとされていました。
[14] untitled - article_2_8.pdf, , https://www.kansai-u.ac.jp/nenshi/sys_img/article_2_8.pdf#page=10
'hyphenate' プロパティー (CSS)[1] hyphenator - Project Hosting on Google Code ( 版) http://code.google.com/p/hyphenator/
Hyphenator.js is a free open source Javascript library that automatically hyphenates text on websites. It comes in handy as a polyfill for legacy browsers that don't support CSS 3 hyphenation at all or for modern browsers that do hyphenation, but do not provide hyphenation dictionaries for a particular language.
[3] 85731 – hyphenation character () https://bugs.documentfoundation.org/show_bug.cgi?id=85731
[4] Change shape and position of hyphenation char · Issue #6 · typiconman/fonts-cu () https://github.com/typiconman/fonts-cu/issues/6
[5] [css-text-4] Allow UA to truncate hyphenation character. #2810 (fantasai著, ) https://github.com/w3c/csswg-drafts/commit/bfb538a8a9bba5b464df192b56ff3a660c511e8e
[6] [css-text-4] What happens when the hyphenation string is wider than a line? · Issue #2810 · w3c/csswg-drafts () https://github.com/w3c/csswg-drafts/issues/2810