Editing Ruby character (section)

== Unicode ==
{{Main|Specials (Unicode block)}}
[[Unicode]] and its companion standard, the [[Universal Character Set]], support ruby via these ''interlinear annotation'' characters:<ref>{{cite book|title = The Unicode Standard, Version 15.0|chapter = 23.8 Specials: Annotation Characters|publisher = Unicode, Inc|date = September 2022|location = Mountain View, CA|url = https://www.unicode.org/versions/Unicode15.0.0/ch23.pdf#G15944}}</ref>
* Code point <code>FFF9</code> ([[hexadecimal|hex]])—Interlinear annotation anchor—marks start of annotated text
* Code point <code>FFFA</code> (hex)—Interlinear annotation separator—marks start of annotating character(s)
* Code point <code>FFFB</code> (hex)—Interlinear annotation terminator—marks end of annotated text

Few applications implement these characters. Unicode Technical Report #20<ref name="unicode20">{{cite web |author1=Martin Dürst |author2=Asmus Freytag |title=Unicode in XML and other Markup Languages |date=2007-05-16 |publisher=[[World Wide Web Consortium|W3C]] and [[Unicode Consortium]] |url=https://www.unicode.org/unicode/reports/tr20/ |access-date=2018-03-23 |archive-date=2005-02-19 |archive-url=https://web.archive.org/web/20050219010527/http://www.unicode.org/unicode/reports/tr20/ |url-status=dead }}</ref> clarifies that these characters are not intended to be exposed to users of markup languages and software applications, and are instead for internal use either in systems or the applications themselves. It suggests that ruby markup be used instead, where appropriate.

The interlinear annotation characters are part of the "Specials" Unicode block:
{{Unicode chart Specials}}