Abstract

nodetree is a development package that visualizes the structure of node lists. nodetree shows its debug informations in the consoles’ output when you compile a LuaTeX file. It uses a similar visual representation for node lists as the UNIX tree command uses for a folder structure.

Node lists are the main building blocks of each document generated by the TeX engine LuaTeX. The package nodetree doesn‘t change the rendered document. The tree view can only be seen when using a terminal to generate the document.

nodetree is inspired by a gist from Patrick Gundlach.

License

Copyright (C) 2016-2025 by Josef Friedrich josef@friedrich.rocks

This work may be distributed and/or modified under the conditions of the LaTeX Project Public License, either version 1.3c of this license or (at your option) any later version. The latest version of this license is in:

http://www.latex-project.org/lppl.txt

and version 1.3c or later is part of all distributions of LaTeX version 2008/05/04 or later.

Packaging

CTAN

The nodetree package has been included in the Comprehensive TeX Archive Network (CTAN) since July 2016.

• Package page
• Sources

Distributions

• TeX Live:

  • run files:

    • tex/luatex/nodetree/nodetree.lua
    • tex/luatex/nodetree/nodetree.sty
    • tex/luatex/nodetree/nodetree.tex
    • tex/luatex/nodetree/nodetree-embed.sty

  • source files:

    • source/luatex/nodetree/nodetree.dtx
    • source/luatex/nodetree/nodetree.ins

  • doc files:

    • doc/luatex/nodetree/nodetree-doc.pdf
    • doc/luatex/nodetree/nodetree-doc.tex
    • doc/luatex/nodetree/README.md
• MiKTeX

Repository

The Git repository in which the development takes place is hosted on GitHub.

Installation

Get source:

git clone git@github.com:Josef-Friedrich/nodetree.git
cd nodetree

Compile:

make

or manually:

luatex nodetree.ins
lualatex nodetree.dtx
makeindex -s gglo.ist -o nodetree.gls nodetree.glo
makeindex -s gind.ist -o nodetree.ind nodetree.idx
lualatex nodetree.dtx

Examples

The node list of the package name

\documentclass{article}
\usepackage{nodetree}
\begin{document}
nodetree
\end{document}

The node list of a mathematical formula

\documentclass{article}
\usepackage[callback={mhlist}]{nodetree}
\begin{document}
\[\left(a\right)\left[\frac{b}{a}\right]=a\,\]
\end{document}

The node list of the word 'Office'

The characters 'ffi' are deeply nested in a discretionary node.

\documentclass{article}
\usepackage{nodetree}
\begin{document}
Office
\end{document}

Development

First delete the stable version installed by TeX Live. Because the package nodetree belongs to the collection collection-latexextra, the option --force must be used to delete the package.

tlmgr remove --force nodetree

Deploying a new version

Update the version number in the file nodetree.dtx on this locations:

In the markup for the file nodetree.sty (approximately at the line number 30)

%<*package>
[2016/07/18 v1.2 Visualize node lists in a tree view]
%<*package>

In the markup for the file nodetree-embed.sty (approximately at the line number 220)

%<*package>
[2016/07/18 v1.2 Visualize node lists in a tree view]
%<*package>

In the markup for the package documentation (approximately at the line number 50)

Add a changes entry:

\changes{v1.2}{2020/05/20}{...}

In documentation (documentation.tex) (approximately at the line number 70)

\date{v2.0 from 2020/05/29}

In the file nodetree.lua (approximately at the line number 20)

if not modules then modules = { } end modules ['nodetree'] = {
  version   = '1.2'
}

Update the copyright year:

sed -i 's/(C) 2016-2025/(C) 2016-2021/g' nodetree.ins
sed -i 's/(C) 2016-2025/(C) 2016-2021/g' nodetree.dtx

Command line tasks:

git tag -a v1.4
make
make ctan