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\NeedsTeXFormat{LaTeX2e}
\ProvidesFile{caesar_book.cls}[2014/02/14 v0.96 Caesar book]
% Load the amsmath and the mhchem package before loading microtype
\RequirePackage{amsmath}% better math handling
\RequirePackage[version=3]{mhchem}% chemical formulas
\LoadClassWithOptions{book}% this is derived from the book class
\RequirePackage{sidenotes}% put annotations, tables and figures in the margin
\captionsetup{font=footnotesize, skip=4pt}
\RequirePackage[maxfloats=45]{morefloats}% a lot of marginals need more float 'memory'
\RequirePackage{marginfix}% automatically adjust the side-floats nicely
\newcommand{\caesar@letterspace}[1]{#1}% allow LuaLaTeX, LaTeX letterspacing
\RequirePackage{microtype}% microtypography
\@ifpackagelater{microtype}{2011/08/18}% xxx allow LaTeX and earlier microtype
{\renewcommand{\caesar@letterspace}[1]{\textls{#1}}}%
{\AtEndDocument{\ClassWarningNoLine{caesar_book}{Need newest microtype for letterspacing.}}}
%
% Set page layout geometry -- default is science-book format
% this means a (portrait) paper size of 170mm x 240mm
%
\RequirePackage{geometry}
\geometry{paperwidth=170mm, paperheight=240mm, left=42pt, top=40pt, textwidth=280pt, marginparsep=20pt, marginparwidth=100pt, textheight=560pt, footskip=40pt}
%
% fontsize is 10pt with a leading (line spacing) of 13pt for book
%
\renewcommand{\normalsize}{\fontsize{10pt}{13pt}\selectfont}%
\renewcommand{\footnotesize}{\fontsize{8pt}{10pt}\selectfont}%
% fullwidth environment, text across textwidth+marginparsep+marginparwidth
\newlength{\overhang}
\setlength{\overhang}{\marginparwidth}
\addtolength{\overhang}{\marginparsep}
%
\newenvironment{fullwidth}
{\ifthenelse{\boolean{@twoside}}%
{\begin{adjustwidth*}{}{-\overhang}}%
{\begin{adjustwidth}{}{-\overhang}}%
}%
{\ifthenelse{\boolean{@twoside}}%
{\end{adjustwidth*}}%
{\end{adjustwidth}}%
}
% set up the fonts
\RequirePackage{ifluatex}
\ifluatex% in LuaLateX we use fontspec
\RequirePackage{fontspec}%
\RequirePackage[vargreek-shape=TeX]{unicode-math}%
\setmathfont{Asana-Math.otf}% asana math works well with palatino
\setmainfont[Ligatures=TeX, Numbers=OldStyle]{Tex Gyre Pagella}% free Palatino clone
\setmonofont{Tex Gyre Cursor}% works okay with palatino
\setsansfont{Tex Gyre Heros}% work okay with palatino
\mhchemoptions{textfontcommand=\addfontfeature{Numbers=Lining}} % use lining numbers for chemical formulas
\else% in LaTeX we load fonts differently
\IfFileExists{mathpazo.sty}{\RequirePackage[osf,sc]{mathpazo}}{}% palatino clone for math
\IfFileExists{helvet.sty}{\RequirePackage[scaled=0.90]{helvet}}{}% helvetica is sans serif font
\IfFileExists{beramono.sty}{\RequirePackage[scaled=0.85]{beramono}}{}% beramono is tt font
\RequirePackage[T1]{fontenc}% finally load fontenc
\fi
% nice headings and TOC
\RequirePackage{titlesec,titletoc}% load the helper package
\setcounter{secnumdepth}{-1}% no numbering at all
\titleformat{\chapter}[display]{\relax\itshape\huge}{}{0pt}{\huge\rmfamily\itshape}[]% chapter format
\titleformat{\section}[hang]{\normalfont\Large\itshape}{}{1em}{}[]% section format
\titleformat{\subsection}[hang]{\normalfont\large\itshape}{}{1em}{}[]% subsection format
\titleformat{\paragraph}[runin]{\normalfont\itshape}{}{1em}{}[]% paragraph format
\renewcommand*\descriptionlabel[1]{\hspace\labelsep\normalfont\em #1}% italic description instead of bold)
\setcounter{tocdepth}{0}% The Table of Contents, only chapters
\titlecontents{chapter}%
[0em] % distance from left margin
{\vspace{1.5\baselineskip}\begin{fullwidth}\LARGE\rmfamily\itshape} % above (global formatting of entry)
{\hspace*{0em}\contentslabel{2em}} % before w/label (label = ``2'')
{\hspace*{0em}} % before w/o label
{\rmfamily\upshape\qquad\thecontentspage} % filler + page (leaders and page num)
[\end{fullwidth}] % after
%set up header, footer and page numbering
\RequirePackage{fancyhdr}% helper package
\renewcommand{\headrulewidth}{0pt}% The running heads and feet do not have rules
\renewcommand{\footrulewidth}{0pt}
\fancyhf{}% set up the page numbering
{\fancyfoot[LE,RO]{\thepage}}
\fancypagestyle{plain}{%
\fancyhf{}
}
\renewcommand{\frontmatter}{\pagestyle{empty}}% the frontmatter is empty
\renewcommand{\mainmatter}{\cleardoublepage\pagestyle{fancy}}% mainmatter with page numbering
\RequirePackage{ragged2e} % \RaggedRight works better than \raggedright
\newcommand{\marginparstyle}{\footnotesize\RaggedRight} % initialize style with start value
\long\def\@ympar#1{% redefine margin par to avoid too many macros in the document
\@savemarbox\@marbox{\marginparstyle#1}% marginparstyle is a prefix to the marginpar text now
\global\setbox\@currbox\copy\@marbox % the rest of the definition is taken from original LaTeX
\@xympar}
\renewcommand*{\marginfont}{\marginparstyle}
% setup itemize and enumerate
\RequirePackage{enumitem}
\setlist[itemize]{leftmargin=*}
%\renewcommand{\labelitemi}{}
% compatibility with T-L
%
% titlepage
\newcommand{\publisher}[1]{\gdef\caesar@publisher{#1}}
\RequirePackage{textcase} % provides \MakeTextUppercase and \MakeTextLowercase
\RequirePackage{color} % the title is too black, define gray
\definecolor{darkgray}{rgb}{0.25,0.25,0.25}
\newcommand{\maketitlepage}{% the title page is generated here
% first count the number of lines in the title
\setbox0\vbox{\noindent\fontsize{30}{38}\selectfont\caesar@letterspace{\MakeTextUppercase{\@title}}\par
\count@\z@
\loop
\unskip\unpenalty\unskip\unpenalty\unskip
\setbox0\lastbox
\ifvoid0
\xdef\caesar@numlines{\the\count@}%
\else
\advance\count@\@ne
\repeat}
% now adjust the vertical spaces accordingly
\edef\caesar@titlespace{\the\dimexpr 210pt - 15pt * \caesar@numlines \relax}% calculate the necessary space
\cleardoublepage%
\begingroup%
{%
\sffamily%
\begin{fullwidth}%
\vspace*{0em}% one line extra space
\LARGE\caesar@letterspace{\MakeTextUppercase{\@author}}\par
\vfill%
\noindent\fontsize{30}{38}\selectfont\textcolor{darkgray}{\caesar@letterspace{\MakeTextUppercase{\@title}}}\par
\vfill%
\vspace{\caesar@titlespace}%
\Large\noindent\caesar@letterspace{\MakeTextUppercase{\caesar@publisher}}\par
\end{fullwidth}%
}%
\endgroup%
\thispagestyle{empty}%
\clearpage%
}
\newcommand\newthought[1]{%
\addvspace{1.0\baselineskip plus 0.5ex minus 0.2ex}%
\noindent\textsc{#1}%
}%
\newcommandtwoopt{\sidecite}[3][][]{\sidenote{\fullcite[#1][#2]{#3}}}
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