6.9 Breaks (改ページ・改丁・改段・改見開き)

Synopsis

Break directives mark page-level structure inherited from print: a new page, a new recto/leaf, a new column section, or a new two-page spread.

Each is a self-contained directive on its own line — no opener/closer, no inner content:

［＃改ページ］      ← new page
［＃改丁］          ← new recto / leaf (丁)
［＃改段］          ← new column section
［＃改見開き］      ← new two-page spread

break = LBRACK HASH ( %s"改ページ" / %s"改丁" / %s"改段" / %s"改見開き" ) RBRACK

None.

［＃改ページ］ yields a page-break node; 改丁 / 改段 / 改見開き yield a section-break node tagged recto / column / spread respectively. Both are block leaves (§8.1) standing on their own line.
Reference rendering (§8): <div class="aozora-page-break"></div> for 改ページ; <div class="aozora-section-break aozora-section-break-<kaicho|kaidan|kaimihiraki>"></div> for the section flavours.
Interaction with annotations and containers (§7.3, §7.4):
- a break does not close a block layout container (字下げ, 地付き, 罫囲み); those persist across page boundaries, matching print typography, and a break inside one is not flagged;
- a break that shares a line with a single-line layout directive, or that falls inside an inline 割り注 range (§6.8), drops that scope and raises break-in-single-line-container (§7.4).
Serialization reconstructs the directive byte-exact (§7.6).

page_break, section_break, break-in-single-line-container.