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prettier-plugin-latex

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prettier-plugin-latex


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prettier-plugin-latex

A prettier plugin for formatting LaTeX documents. You can try it out online in the playground

Intro

Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.

This plugin adds support for the LaTex to Prettier. While TeX itself cannot be parsed without being executed, prettier-plugin-latex makes the assumption that your document uses "standard" LaTeX, and parses it to the best of its ability.

Input

\begin{enumerate}
    \item[55,4] Hi there
\item$e^2$ is math mode! \[\begin{matrix}12&3^e\\pi&0\end{matrix}\]
\end{enumerate}

Output

\begin{enumerate}
	\item[55,4] Hi there

	\item $e^{2}$ is math mode!
		\[
			\begin{matrix}
				12 & 3^e \\
				pi & 0
			\end{matrix}
		\]
\end{enumerate}

Install

yarn:

yarn add --dev prettier prettier-plugin-latex
# or globally
yarn global add prettier prettier-plugin-latex

npm:

npm install --save-dev prettier prettier-plugin-latex
# or globally
npm install --global prettier prettier-plugin-latex

Use

With Node.js

If you installed prettier as a local dependency, you can add prettier as a script in your package.json,

{
    "scripts": {
        "prettier": "prettier"
    }
}

and then run it via

yarn run prettier path/to/file.tex --write
# or
npm run prettier path/to/file.tex --write

If you installed globally, run

prettier path/to/file.tex --write

Node: For Prettier v3, automatic plugin resolution was removed, so you must specify the directory of prettier-plugin-latex manually with the --plugin=... command line argument.

In the Browser

This package exposes a standalone.js that wraps prettier and exports a printPrettier function that can be called as

printPrettier(YOUR_CODE, {
    // example option
    tabWidth: 2,
});

Options

The standard Prettier options (such as tabWidth) can be used.

Development

To make a production build, run

npm run build

To develop, run

npm run watch

You can then execute Prettier with

prettier --plugin=./dist/prettier-plugin-latex.js ...

and the LaTeX plugin will load from the current directory.

Code structure

prettier-plugin-latex uses the @unified-latex/unified-latex-prettier library to parse the latex file and convert it to a prettier AST. This library is just a thin layer over latex-ast-parser

Keywords

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Last updated on 27 Sep 2023

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