JeT
Marmot's solution here https://topanswers.xyz/tex?q=1348 is an extremely flexible way to gather content from loads of lectures and avoid duplicates.
It was based on `\lecture` (as equivalent to chapter in `beamer`).
This option is so convenient, that I'd like to have more granularity to input content at a `\section` level.
here is the structure of my folder (lecture level = chapter level)
In a way, the content and the container drive me to define a metric.
- One section = 1h
- One lecture= 3h
Here is how I would see the flow. It'd powerful ! (unless I am missing something)
```
\pgfkeys{/courses/.cd,
15hCourse/.initial={1,2,3,4,5},
9hCourse/.initial={2,3,5},
3hSeminar/.initial={01_02,02_03,03_01}}
```
**Case 1 - all sections in a lecture**
`\CourseInput[Lecture]{15hCourse}{*}` (% I like the star for all)
loads all sections in 15hCourse
```
\input{Lecture1}
\input{Lecture2}
\input{Lecture3}
\input{Lecture4}
\input{Lecture5}
```
=> 5 lectures, it's a long 15h course !
`\CourseInput[lecture]{9hCourse}{*}` loads all sections in 9hCourse
```
\input{Lecture2}
\input{Lecture3}
\input{Lecture5}
```
=> 3 lectures, it's a short 9h course.
**Case 2 - all First sections in different lectures**
`\CourseInput[lecture]{15hCourse}{1}` loads sections 1 (introduction) for 15hCourse (Lectures 1,2,3,4 and 5)
```
\input{sec01_01}
\input{sec02_01}
\input{sec03_01}
\input{sec04_01}
\input{sec05_01}
```
Looks like the summary of what's at stake in the 5 lectures
Could be part of an automated Syllabus
**Case 3 - different sections in different lectures**
`\CourseInput[Section]{}{3hSeminar} `
loads all sections in 3hSeminar
```
\input{sec01_02}
\input{sec02_03}
\input{sec03_01}
```
Short 3h intervention for a seminar on three different topics
**Extensions I imagine**
by naming things the right way (for bibiliography, internet links, any other topic/content related to a section) I could reach my long time goal to have a way to cut and slice and repackage content the way I want.
MWE adapted from the original answer.
```
\documentclass{beamer}
\usetheme{Copenhagen}
\setbeamercolor{lecture in toc}{parent=structure}
\usepackage{pgffor}
\usepackage{totcount}
\regtotcounter{part}
\begin{filecontents}[overwrite]{sec01_01.tex}
\section{Section 1}
\subsection{Subsection 1a}
\frame{}
\subsection{Subsection 1b}
\frame{}
\subsection{Subsection 1c}
\frame{}
\end{filecontents}
\begin{filecontents}[overwrite]{sec01_02.tex}
\section{Section 2}
\frame{}
\end{filecontents}
\begin{filecontents}[overwrite]{Lecture1.tex}
\lecture{Lecture1}{lec1}
\input{sec01_01.tex}
\input{sec01_02.tex}
\end{filecontents}
\begin{filecontents}[overwrite]{sec02_01.tex}
\section{Section 1}
\subsection{Subsection 1a}
\frame{}
\subsection{Subsection 1b}
\frame{}
\subsection{Subsection 1c}
\frame{}
\end{filecontents}
\begin{filecontents}[overwrite]{sec02_02.tex}
\section{Section 2}
\subsection{Subsection 2a}
\frame{}
\end{filecontents}
\begin{filecontents}[overwrite]{Lecture2.tex}
\lecture{Lecture2}{lec2}
\input{sec02_01.tex}
\input{sec02_02.tex}
\end{filecontents}
\begin{filecontents}[overwrite]{sec03_01.tex}
\section{Section 1}
\subsection{Subsection 1a}
\frame{}
\subsection{Subsection 1b}
\frame{}
\subsection{Subsection 1c}
\frame{}
\end{filecontents}
\begin{filecontents}[overwrite]{sec03_02.tex}
\section{Section 2}
\subsection{Subsection 2a}
\frame{}
\end{filecontents}
\begin{filecontents}[overwrite]{Lecture3.tex}
\lecture{Lecture3}{lec3}
\input{sec03_01.tex}
\input{sec03_02.tex}
\end{filecontents}
\makeatletter
\AtBeginLecture{%
\mode<beamer>{
\part{\beamer@lecturename}
\expandafter\NR@gettitle\expandafter{\beamer@lecturename}
\label{part:\thelecture}
\begin{frame}
\begin{beamercolorbox}[sep=16pt,center]{part title}
{\Large\textsc{Lecture}\par}
{\large\insertpart\par}
\end{beamercolorbox}
\tableofcontents
\end{frame}
}
\beamer@tocsectionnumber=0
}
\newif\ifpgf@course@union
\pgfkeys{/courses/.cd,union/.is if=pgf@course@union,union/.default=true}
\pgf@course@uniontrue
\newcommand{\CourseInput}[2][]{%
\pgfkeys{/courses/.cd,#1}%
\let\pgfutil@tmpc\relax
\pgfutil@for\pgfutil@tmpa:={#2}\do{%
\ifx\pgfutil@tmpc\relax
\edef\pgfutil@tmpc{\pgfkeysvalueof{/courses/\pgfutil@tmpa}}%
\else
\edef\pgfutil@tmpc{\pgfutil@tmpc,\pgfkeysvalueof{/courses/\pgfutil@tmpa}}%
\fi
}%
\ifpgf@course@union
\pgfmathtruncatemacro{\pgfutil@tmpd}{min(\pgfutil@tmpc)}%
\pgfmathtruncatemacro{\pgfutil@tmpe}{max(\pgfutil@tmpc)}%
\edef\pgfutil@tmpb{\pgfutil@tmpd}%
\c@pgf@counta\pgfutil@tmpd%
\pgfutil@loop
\advance\c@pgf@counta by1\relax
\edef\pgfutil@tmpf{\noexpand\pgfutil@in@{,\the\c@pgf@counta,}{\pgfutil@tmpc}}%
\pgfutil@tmpf
\ifpgfutil@in@%
\edef\pgfutil@tmpb{\pgfutil@tmpb,\the\c@pgf@counta}%
\fi
\ifnum\c@pgf@counta<\pgfutil@tmpe
\pgfutil@repeat
\else
\edef\pgfutil@tmpb{\pgfutil@tmpc}%
\fi
\pgfutil@for\pgfutil@tmpa:={\pgfutil@tmpb}\do{%
\input{Lecture\pgfutil@tmpa.tex}}%
}%
\makeatother
\title{Some Title}
\pgfkeys{/courses/.cd,
one/.initial={1,2},
two/.initial={2,5},
three/.initial={3}}
%It's probably here I need to have more granulartity but
%/courses/Lecture1.cd,
%/courses/Lecture2.cd, but I am still walking on eggs with keys.
\begin{document}
\begin{frame}
\tableofcontents
\foreach\x in {1,...,\totvalue{part}}{%
\vskip-0.4cm
\protect\usebeamercolor[fg]{lecture in toc}%
\vfill%
\hyperlink{part:\x}{\nameref{part:\x}}%
\tiny\tableofcontents[part=\x]%
}%
\end{frame}
\CourseInput{one,two}
%\CourseInput[union=false]{one,two}
%\CourseInputbySection{03_02,01_01} %not easy to read or input :/ must be a smarter way
\end{document}
```