EN:ltc book

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Modern Vertical Book Classes (v0.2.7+)

luatex-cn provides two document classes for modern vertical Chinese book typesetting. Unlike ltc-guji (ancient book typesetting), they use a clean, modern design: no banxin, no fishtail, no silk frames — suitable for contemporary publications that need vertical layout.

Class	Punct Style	Description
ltc-cn-vbook (v0.2.8+)	Mainland	Simplified Chinese vertical books
ltc-tw-vbook (v0.2.8+)	Taiwan	Traditional Chinese vertical books
ltc-book	Taiwan	Legacy name, still works

Basic Usage

\documentclass{ltc-cn-vbook}
\setmainfont{Noto Serif SC}

\begin{document}
\begin{正文}
天地玄黄，宇宙洪荒。日月盈昃，辰宿列张。
\end{正文}
\end{document}

Template System

Option	Description	Punct Style
(none)	Default, 16-kai (170x240mm), 12pt font	Taiwan
中华书局	Zhonghua Shuju style, 15pt font, footnotes enabled	Mainland

\documentclass{ltc-cn-vbook}           % Default
\documentclass[中华书局]{ltc-cn-vbook}  % Zhonghua Shuju

Differences from guji

Feature	cn-vbook / tw-vbook	guji
Design	Modern, clean	Traditional ancient
Banxin/Yuwei	No	Yes
Borders/Silk frames	No	Yes
Layout mode	Free column width (n-column=0)	Fixed grid (n-column=8)
Default punct	Modern (normal)	Configurable judou/normal
Footnotes	Built-in	Manual loading
Page numbers	Auto vertical	In banxin center

Punctuation Style

ltc-cn-vbook / ltc-tw-vbook enable the modern punctuation system by default. See Punctuation System.

\documentclass{ltc-cn-vbook}
\punctSetup{punct-style=mainland}  % Override to mainland style

Or use \documentclass[中华书局]{ltc-cn-vbook} which automatically sets mainland style.

You can also switch to judou mode: \开启句读模式

Two-side Mirror Margins (v0.3.2+)

vbook enables twoside mode (twoside=true) by default, automatically mirroring inner/outer margins on odd/even pages:

• Inner margin (margin-inner): Binding side (odd pages = right, even pages = left)
• Outer margin (margin-outer): Reading side

\pageSetup{
    twoside = true,
    margin-inner = 16mm,   % binding side
    margin-outer = 24mm,   % outer side
}

Running Headers (v0.3.2+)

vbook supports running headers that alternate between chapter name and book title.

\pageSetup{
    header-enabled = true,
    header-font-size = 9pt,
    header-y = 52mm,
}

Page	Header Content	Position
Odd (right)	Chapter name (\chapter{...})	Left (binding side)
Even (left)	Book title (\title{...})	Right (binding side)

Use \skipHeader to suppress headers on specific pages (e.g., title pages).

Paragraph Indentation (v0.3.2+)

vbook supports first-line paragraph indentation:

\contentSetup{
    first-indent = 2,   % indent first line by 2 characters
}

The layout engine automatically detects paragraph boundaries and applies indentation.

Volume & Chapter Title Commands (v0.3.2+)

Command	Description	Example
\卷名{...}	Volume title (24pt, 48pt top spacing)	\卷名{史記卷六}
\章节名{...}	Chapter title (20pt, 2-char indent)	\章节名{秦始皇本紀}

\章节名 automatically calls \chapter to update running headers.

Footnote System

Built-in footnote support with endnote and page-bottom modes.

\脚注设置{number-style=lujiao, indent=1em}
天地玄黄\脚注{This is a footnote}。
\输出脚注  % Output at paragraph end

Configuration (\footnoteSetup / \脚注设置)

Parameter	Description	Default	Values
mode	Mode	endnote	endnote, page
number-style	Style	lujiao	lujiao (【一】), circled (①)
separator	Separator	blank	blank, none
font-size	Size	0.8em	Any dimension
indent	Indent	1em	Any dimension

Commands

Command	Chinese	Description
\Footnote{...}	\脚注{...}	Add footnote
\FlushFootnote	\输出脚注	Output endnotes
\FootnoteParagraph{...}	\脚注段落{...}	Unnumbered footnote block
\footnoteSetup{...}	\脚注设置{...}	Configure
\ResetFootnoteCounter	\重置脚注计数	Reset counter

Page Numbers

Auto vertical page numbers at lower-left. Configure via \pageSetup:

Parameter	Default
page-number-style	digits (also: chinese, arabic, none)
page-number-font-size	9pt
page-number-x	3mm
page-number-y	8mm

Custom Templates

Create configs/luatex-cn-book-<name>.cfg with \pageSetup, \contentSetup, \punctSetup, then use \documentclass[name]{ltc-cn-vbook}.

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