latex-wochenende/slides/chapter-04.en.md

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@number 4

@title Project structure

@slide(layout=content-and-preview)

@title Goal

@content Create a bigger LaTeX project and …

• prevent LaTeX documents from growing monstrously 👹
• keep the overview over the project structure

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@title Main file 👑

@content

• contains basic structure and front matter
• includes separate sections with
  \input{path/to/file}

\documentclass{article}
\usepackage{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\title{A Title}
\begin{document}
    \maketitle
    \tableofcontents
    \input{section1.tex}
    \input{section2.tex}
\end{document}

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@slide(layout=content-and-preview)

@title File with a section

@content

• contains no preamble
• contains no \begin{document} or \end{document}

\section{This is section 1}
A paragraph about the content 
of section 1.

% …

\section{This is section 2}
A paragraph about the content 
of section 2.

% …

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@slide(layout=content-and-preview-with-category)

@category Excursion

@title Specifying file paths 👣

@content

• important for \input{}, but later also for other media types
• file and folder structure = tree structure 🌳
• with \input{}, you can specify the path relative to the main file

In **LaTeX,** you have to use UNIX-style paths. They are separated by a forward slash: `path/to/file`. We will use those from here on.

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@slide(layout=content-and-preview-with-category)

@category Excursion

@title Specifying file paths 👣

@content

`main.tex` → `part1.tex`

`./part1.tex`

A single dot ‘.’ represents the current folder (in this case: latex). It is optional, you could also write part1.tex here.

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@slide(layout=content-and-preview-with-category)

@category Excursion

@title Specifying file paths 👣

@content

`main.tex` → `part1.tex` (in a subfolder)

./sections/part1.tex

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@slide(layout=content-and-preview-with-category)

@category Excursion

@title Specifying file paths 👣

@content

`main.tex` → `part1.tex` (from one subfolder into a different subfolder)

../sections/part1.tex

Two dots ‘..’ represent the parent folder of the current folder (in this case: latex, parent of main).

Spaces in file paths have to be escaped using a backslash: `path/to/a\␣file`.

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@slide(layout=content-only)

@title Compiling the project

@content

• Only the main file has to be compiled to get the complete PDF document.
• Error messages include a reference to the corresponding subfile.
• Subfiles cannot be compiled on their own as they don’t have a preamble.

@slide(layout=content-and-preview)

@title Outsourcing the preamble

@content What do you think happens when we outsource the preamble into its own subfile?

Will the document compile?

++ Yes, it will!
A simple way of keeping the main file even more organised.

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@slide(layout=content-only-with-category)

@category Demo

@title Compiling larger projects

@content

• From now on, we will compile the file main.tex in the project root.
• To do so, right click on the file in TeXstudio and choose “Select as explicit root document” from the dropdown.
• Next, compile as usual.

@slide(layout=task)

@task-number 4

@title A structured project

@content You will find a file named main.tex in the folder exercises/project-structure.

• Put the sections of the file into separate files, named section1.tex and section2.tex.
• Include them using the \input command.
• Move the preamble to its own file in a similar fashion.
• Finally, have a look at the general project archive, starting from main.tex (in the root folder of the project archive). How do we include the different sections here?