[css-text-4] Dealing with unusual line-break/hyphenation rules

8. Breaking Within Words
   https://drafts.csswg.org/css-text-4/#hyphenation

Certain features associated with line-breaking are unusual by western standards, and i'm not sure whether to class them as line-break rules, or specialised hyphenation rules.

Two examples are given in the last section of the following article, Other special rules.

The Javanese example might be closer to what we normally think of as hyphenation: a glyph that only appears when a word is broken, and isn't in the text stream. However, it only occurs in a specific situation.

The Tibetan example relates to situations where a single syllable followed by a shad is wrapped. In my mind, this may be more aligned with line-break rules than hyphenation.

The purpose of this issue is to ask whether anyone has any suggestion about how to treat things of this kind, and whether we should add anything to the CSS spec to either refer to or cover this kind of behaviour.

Start with section 8, “Breaking Within Words,” in the CSS Text Level 4 draft, then read the linked “Other special rules” article. Compare the Javanese and Tibetan examples and determine whether they belong under line-breaking or hyphenation. Done means the issue has a decided classification and a clear recommendation for whether the CSS specification should address it.