Struct Ruby 

pub struct Ruby;

The <ruby> element - ruby annotation.

Purpose

The <ruby> element represents a ruby annotation, which is used to show pronunciation of East Asian characters. A ruby annotation consists of the base text and ruby text (typically pronunciation), often displayed above or beside the base text.

Content Categories

• Flow Content
• Phrasing Content
• Palpable Content

Permitted Content Model

• Phrasing content and <rt>, <rp> elements

Common Use Cases

• Japanese furigana (hiragana pronunciation guides)
• Chinese pinyin
• Korean pronunciation guides
• Pronunciation annotations for any language

Key Attributes

• Global attributes only

Example

<ruby>
  漢<rt>kan</rt>
  字<rt>ji</rt>
</ruby>

<ruby>
  東京<rp>(</rp><rt>とうきょう</rt><rp>)</rp>
</ruby>

Accessibility

• Screen readers may announce both base and ruby text
• <rp> provides fallback for browsers without ruby support

WHATWG Specification

• 4.5.11 The ruby element

Trait Implementations

impl HtmlElement for Ruby

const TAG: &'static str = "ruby"

The HTML tag name (e.g., “div”, “span”, “img”).

const VOID: bool = false

Whether this is a void element (self-closing, no children allowed).

impl CanContain<Rp> for Ruby

impl CanContain<Rt> for Ruby

impl<T: PhrasingContent> CanContain<T> for Ruby

impl FlowContent for Ruby

impl PalpableContent for Ruby

impl PhrasingContent for Ruby