NodeKind::AngleQuote

Wire tag: angleQuote — double-angle quotation (二重山括弧).

A 底本’s twin angle brackets 《…》 would collide with the ruby markers 《…》 (U+300A/U+300B), so Aozora Bunko input encodes them as ≪…≫ (U+226A/U+226B). The renderer restores the display form 《…》.

Source examples

≪重要≫

底本 《重要》 → aozora text ≪重要≫ → display 《重要》.

Rendered HTML

<span class="aozora-angle-quote">《重要》</span>

The 《…》 display glyphs (U+300A/U+300B) are restored inside the span; stylesheets target .aozora-angle-quote for any further treatment.

Serialize output

Round-trips to the input form ≪content≫ (U+226A/U+226B).

AST shape

pub struct AngleQuote<'src> {
    pub content: NonEmpty<Content<'src>>,
}

content is NonEmpty — empty ≪≫ is rejected upstream and falls through to plain text rather than producing an empty node.

When emitted

Phase 1 tokenises ≪ / ≫ (U+226A/U+226B) as ordinary single-character triggers; Phase 3 pairs ≪…≫ into one AngleQuote node. A stray 底本-style 《《…》》 is not this node — it is two ruby openers and yields a nested-ruby diagnostic with plain fallback.

Diagnostics

• aozora::lex::unclosed_bracket — ≪ reaches EOF without ≫.
• aozora::lex::unmatched_close — stray ≫ with no matching open.

Related kinds

• Ruby — 《…》 reading marker (the colliding notation).