# @unified-latex/unified-latex-util-argspec

> Tools parsing a LaTeX argument specification in the xparse format

Latest version **1.8.4** (published 2026-04-03) · MIT license · 0 weekly downloads

## Install

```sh
npm install @unified-latex/unified-latex-util-argspec
pnpm add @unified-latex/unified-latex-util-argspec
yarn add @unified-latex/unified-latex-util-argspec
bun add @unified-latex/unified-latex-util-argspec
```

## Health

**Score 60/100 (C)** — status: active.

Positive: has types; esm support; no vulnerabilities; high maintenance score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 1.8.4 |
| Published | 2026-04-03 |
| First published | 2022-05-14 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Dependencies | 1 |
| Unpacked size | 26.3 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 127 |
| Author | Jason Siefken |
| Maintainers | siefkenj |
| Keywords | pegjs, latex, parser, prettier, unified-latex, unified |

## Links

- npm: https://www.npmjs.com/package/@unified-latex/unified-latex-util-argspec
- Repository: https://github.com/siefkenj/unified-latex
- Homepage: https://github.com/siefkenj/unified-latex#readme
- Issues: https://github.com/siefkenj/unified-latex/issues
- npm.io page: https://npm.io/package/@unified-latex/unified-latex-util-argspec

## Dependencies (1)

- [@unified-latex/unified-latex-util-pegjs](https://npm.io/package/@unified-latex/unified-latex-util-pegjs.md) ^1.8.4

## Alternatives

- [babylon](https://npm.io/package/babylon.md) — 5.1M weekly downloads
- [csscolorparser](https://npm.io/package/csscolorparser.md) — 3.7M weekly downloads
- [expr-eval-fork](https://npm.io/package/expr-eval-fork.md) — 1.5M weekly downloads
- [@leeoniya/ufuzzy](https://npm.io/package/@leeoniya/ufuzzy.md) — 247.7K weekly downloads
- [xml-parser](https://npm.io/package/xml-parser.md) — 78.4K weekly downloads

## Recent versions

- 1.8.4 (latest) — 2026-04-03
- 1.8.3 — 2025-06-16
- 1.8.2 — 2025-02-09
- 1.8.1 — 2024-10-21
- 1.8.0 — 2024-08-22
- 1.7.1 — 2024-03-19
- 1.7.0 — 2024-02-25
- 1.6.1 — 2024-02-18
- 1.6.0 — 2024-01-17
- 1.4.2 — 2023-09-30
- 1.4.0 — 2023-06-20
- 1.3.1 — 2023-03-05
- 1.3.0 — 2023-02-06
- 1.2.2 — 2022-12-15
- 1.2.1 — 2022-11-23
- … 10 more at https://npm.io/package/@unified-latex/unified-latex-util-argspec/versions

## README

<!-- DO NOT MODIFY -->
<!-- This file was autogenerated by build-docs.ts -->
<!-- Edit the docstring in index.ts and regenerate -->
<!-- rather than editing this file directly. -->
# unified-latex-util-argspec

## What is this?

Tools to deal with `xparse` argument signatures. (E.g., `"o m"` for optional followed by mandatory
argument).

## When should I use this?

If you are working on the internals of `unified-latex`.

## Install

```bash
npm install @unified-latex/unified-latex-util-argspec
```

This package contains both esm and commonjs exports. To explicitly access the esm export,
import the `.js` file. To explicitly access the commonjs export, import the `.cjs` file.

# Functions

## `parse(str)`

Parse an `xparse` argument specification string to an AST.
This function caches results. Don't mutate the returned AST!

```typescript
function parse(str: String): ArgSpec.Node[];
```

**Parameters**

| Param | Type     | Description            |
| :---- | :------- | ---------------------- |
| str   | `String` | *   LaTeX string input |

## `printRaw(node, root)`

Print an `xparse` argument specification AST
to a string.

```typescript
function printRaw(
  node: string | ArgSpec.Node | (string | ArgSpec.Node)[],
  root: Boolean
): string;
```

**Parameters**

| Param | Type                              |
| :---- | :-------------------------------- |
| node  | <span color='gray'>Omitted</span> |
| root  | `Boolean`                         |

---
_Source: https://npm.io/package/@unified-latex/unified-latex-util-argspec · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._