====== TeX and LaTeX ======

===== Book and chapters =====

We would like to process the entire book and each chapter separately. Each chapter <k> is inside its subdirectory **''Ch''**<k> and its pictures in the subsubdirectory **''Ch''**<k>**''/pics''** . The BibTeX bibliography is in the file **''bibnet.bib''** in the main directory.


We put common styles and commands in the file **''preamble.sty''**. 
<code latex>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{preamble}[2024/01/19 bibnet book LaTeX style]
...
\usepackage{amsmath}
\makeindex{topic}
\setcounter{tocdepth}{2}
\renewcommand{\topfraction}{0.9}
\newenvironment{remark}{\medbreak\par\noindent\textbf{Remark:}\ }{\QED}
\newcommand{\network}[1]{\mathcal{#1}}
\newcommand{\WA}{\mathbf{W\!\!A}}
...
\endinput
</code>

The template for the book
<code latex>
% book.tex
\newif\ifHeader %\Headertrue 
\Headerfalse
\newif\ifBook \Booktrue 
%\Bookfalse
\newif\ifChapter \Chapterfalse 
\ifBook \documentclass[a4paper,twoside]{WileySev} \else \documentclass{WileySev} \fi
\newcommand*{\BuildingFromMainFile}{}
\usepackage{subfiles}
\usepackage{preamble}
\usepackage[nottoc]{tocbibind}
\graphicspath{{./pics}{./Ch01/pics/}{./Ch02/pics/}{./Ch03/pics/}{./Ch04/pics/}}
\begin{document}
\booktitle{Analysis of bibliographic networks}
...
% Ch01:  Introduction	
\subfile{Ch01/ChIntro}
% Ch02:  Introduction to networks	
\subfile{Ch02/ChBibNets}
...
\clearpage
\bibliographystyle{acm}
\bibliography{bibnet}
\end{document}
</code>
For processing a chapter **''Ch''**<name> separately (in the chapter's directory) we have to add to it some additional code at its beginning and its end.
<code latex>
% ChBibnets.tex
% Ch02:  Introduction to networks
\ifdefined\BuildingFromMainFile
\else\documentclass{../WileySev} \usepackage{import} \import{../}{preamble.sty}
\setcounter{chapter}{1}\setcounter{page}{101}
\offprintinfo{Analysis of bibliographic networks\\ \today \quad \clock}{V. Batagelj, D. Maltseva}
\graphicspath{{./pics}{../Ch01/pics/}{../Ch02/pics/}{../Ch03/pics/}{../Ch04/pics/}}
\begin{document}\fi

\chapter{Bibliographic networks}\label{ch:bibnets}
	
... CHAPTER BODY

\ifdefined\BuildingFromMainFile
\else\bibliographystyle{acm}\bibliography{../bibnet}\end{document}\fi
\endinput
</code>

Saving the start/end chapter code in the main directory on files **''StartChapter.tex''** and **''EndChapter.tex''** we get a more readable chapter template
<code latex>
% ChBibnets.tex
% Ch02:  Introduction to networks
\input{../StartChapter.tex}
\ifdefined\BuildingFromMainFile\else\setcounter{chapter}{1}\setcounter{page}{101}\fi
% =================== Start Chapter =================================

\chapter{Bibliographic networks}\label{ch:bibnets}
	
... CHAPTER BODY

% =================== End Chapter ==================================
\input{../EndChapter.tex}
</code>

To get the book/chapter bibliography right, we have to process the corresponding file several times
<code>
pdflatex ChBibnets
bibtex ChBibnets
pdflatex ChBibnets
pdflatex ChBibnets
</code>

==== Links ====

   - C:\Users\vlado\test\TeX\bibsub2
   - https://www.overleaf.com/learn/latex/Management_in_a_large_project
   - https://georgepavlides.info/writing-a-latex-book-with-multiple-subfiles-and-a-single-bibliography-file/
   - https://copyprogramming.com/howto/how-to-use-chapterbib-package-syntax
   - https://chenzhijin.com/en/article/Use%20chapterbib%20with%20subfile/