book.tex

\documentclass[10pt, a4paper, oneside]{ltjsbook}
\usepackage{amssymb,amsmath}
\usepackage{luatexja-fontspec}
\usepackage{letltxmacro}
\usepackage[Lenny]{fncychap}

% チャプターマークの設定
\makeatletter
\renewcommand{\DOCH}{%
  \settowidth{\px}{\CNV\FmN{\@chapapp}}
  \addtolength{\px}{2pt}
  \settoheight{\py}{\CNV\FmN{\@chapapp}}
  \addtolength{\py}{1pt}

  \settowidth{\mylen}{\CNV\FmN{\@chapapp}\space\CNoV\thechapter}
  \addtolength{\mylen}{1pt}
  \settowidth{\pxx}{\CNoV\thechapter}
  \addtolength{\pxx}{-1pt}

  \settoheight{\pyy}{\CNoV\thechapter}
  \addtolength{\pyy}{-2pt}
  \setlength{\myhi}{\pyy}
  \addtolength{\myhi}{-1\py}
  \par
  \parbox[b]{\textwidth}{%
    \rule[\py]{\RW}{\myhi}%
    \hskip -\RW%
    \rule[\pyy]{\px}{\RW}%
    \hskip -\px%
    \raggedright%
    \CNV\FmN{\@chapapp}\space\CNoV\thechapter\CNV\FmN{\@chappos}%
    \hskip1pt%
    \mghrulefill{\RW}%
    \rule{\RW}{\pyy}\par\nobreak%
    \vskip -\baselineskip%
    \vskip -\pyy%
    \hskip \mylen%
    \mghrulefill{\RW}\par\nobreak%
    \vskip \pyy}%
  \vskip 20\p@}
\makeatother

\usepackage{luacode}

% フォント設定
% \ltjsetparameter{jacharrange={...}} の挙動が不安定
% うまくいかなければ \ltjalchar でしのぐ

\setmainfont{Noto Serif}
\setmainjfont{Noto Serif CJK JP}
\setmonofont{Source Code Pro}

\ltjsetparameter{jacharrange={-2}}

% \newcommadn\cyrillictext[1]{{\cyrillicfont #1}}
% \newfontfamily\cyrillicfont{Noto Serif}
\newcommand{\arabictext}[1]{{\arabicfont {\textdir TRT #1}}}
\newcommand{\cjkunifiedtext}[1]{{\cjkunifiedfont #1}}
\newcommand{\devanagaritext}[1]{{\devanagarifont #1}}
\newcommand{\emojitext}[1]{{\emojifont #1}}
\newcommand{\hangultext}[1]{{\hangulfont #1}}
\newcommand{\hebrewtext}[1]{{\hebrewfont {\textdir TRT #1}}}
\newcommand{\letterliketext}[1]{{\letterlikefont #1}}
\newfontfamily\arabicfont[Script=Arabic]{Noto Naskh Arabic}
\newfontfamily\cjkunifiedfont{Noto Serif CJK JP}
\newfontfamily\devanagarifont{Noto Sans Devanagari}
\newfontfamily\emojifont{Noto Emoji}
\newfontfamily\hangulfont{Noto Serif CJK JP}
\newfontfamily\hebrewfont{Noto Sans Hebrew}
\newfontfamily\letterlikefont{Noto Serif}

\usepackage[centering]{geometry}

\usepackage[%
  unicode=true,
  breaklinks=true
  bookmarks=true,
  pdfborder={0 0 0},
  bookmarksnumbered=true,
  bookmarkstype=toc,
  bookmarksopen=true,
  pdfauthor={Yuu YOSHIMURA},
  pdftitle={The Rust Programming Language: 2018 Edition}]{hyperref}

\usepackage{xcolor}
\usepackage{fancyvrb}
\usepackage{mdframed}
\usepackage{listings}
\usepackage{enumitem}

\input{listings.tex}

\usepackage{longtable,booktabs,array}
\usepackage{calc}
\usepackage{graphicx,grffile}

\usepackage[some]{background}

% 画像の設定
\makeatletter
\def\maxwidth{\ifdim\Gin@nat@width>.8\linewidth\linewidth\else\Gin@nat@width\fi}
\makeatother
\setkeys{Gin}{width=\maxwidth, keepaspectratio}

% Pandocが要求するマクロを定義
\setlength{\emergencystretch}{3em}  % prevent overfull lines
\providecommand{\tightlist}{%
  \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}

% ヘッダーの長さを調整するワークアラウンド
\setlength{\fullwidth}{\textwidth}

% 画像がない場合にコンパイルを無理やり実行する設定
\usepackage{ifthen}
\LetLtxMacro\latexincludegraphics\includegraphics
\makeatletter
\renewcommand\includegraphics[2][]{%
  \IfFileExists{#2}
    {%
      \latexincludegraphics[#1]{#2}}
    {%
      \fbox{Image File doesn't exist}%
      \message{Image File #2 doesn't exist^^J}}
}
\makeatother

% リストを入れ子にできる限界を拡張
\setlistdepth{10}

% 強調をボールドにする
\let\emph\relax
\DeclareTextFontCommand{\emph}{\gtfamily\bfseries}

% Markdownソースの最終コミット時刻を取得
\input{markdown_date.tex}
\backgroundsetup{%
  contents={Last Commit Date of Markdown Sources: \GitMarkdownDate},
  placement=top,
  opacity=0.8,
  scale=1.5,
  firstpage=true,
  color=blue!40,
  vshift=-2em
}

\begin{document}

% 本文
\input{body.tex}

\end{document}