# css-selector-tokenizer

> Parses and stringifies CSS selectors

Latest version **0.8.0** (published 2021-06-01) · MIT license · 0 weekly downloads

## Install

```sh
npm install css-selector-tokenizer
pnpm add css-selector-tokenizer
yarn add css-selector-tokenizer
bun add css-selector-tokenizer
```

## Health

**Score 23/100 (F)** — status: abandoned.

Positive: has types package; no vulnerabilities; high quality score.

Warnings: low downloads; no esm support; pre 1.0.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 0.8.0 |
| Published | 2021-06-01 |
| First published | 2015-05-29 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | separate (@types/css-selector-tokenizer) |
| Module format | CommonJS |
| Dependencies | 2 |
| Unpacked size | 18 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 85 |
| Author | Tobias Koppers @sokra |
| Maintainers | markdalgleish, sokra, trysound, geelen, evilebottnawi |
| Keywords | css-modules, selectors |

## Links

- npm: https://www.npmjs.com/package/css-selector-tokenizer
- Repository: https://github.com/css-modules/css-selector-tokenizer
- Issues: https://github.com/css-modules/css-selector-tokenizer/issues
- npm.io page: https://npm.io/package/css-selector-tokenizer

## Dependencies (2)

- [cssesc](https://npm.io/package/cssesc.md) ^3.0.0
- [fastparse](https://npm.io/package/fastparse.md) ^1.1.2

## Recent versions

- 0.8.0 (latest) — 2021-06-01
- 0.7.3 — 2020-07-21
- 0.7.2 — 2020-03-03
- 0.7.1 — 2018-10-30
- 0.7.0 — 2016-09-05
- 0.6.0 — 2016-07-20
- 0.5.4 — 2015-07-26
- 0.5.3 — 2015-07-18
- 0.5.2 — 2015-06-19
- 0.5.1 — 2015-06-16
- 0.5.0 — 2015-06-16
- 0.4.1 — 2015-06-12
- 0.4.0 — 2015-06-09
- 0.3.1 — 2015-05-29
- 0.3.0 — 2015-05-29
- … 3 more at https://npm.io/package/css-selector-tokenizer/versions

## README

# CSS Modules: css-selector-tokenizer
[![Build Status](https://travis-ci.org/css-modules/css-selector-tokenizer.svg?branch=master)](https://travis-ci.org/css-modules/css-selector-tokenizer)
[![coveralls.io](https://coveralls.io/repos/css-modules/css-selector-tokenizer/badge.svg?branch=master)](https://coveralls.io/r/css-modules/css-selector-tokenizer?branch=master)
[![codecov.io](https://codecov.io/github/css-modules/css-selector-tokenizer/coverage.svg?branch=master)](https://codecov.io/github/css-modules/css-selector-tokenizer?branch=master)

Parses and stringifies CSS selectors.

``` js
import Tokenizer from "css-selector-tokenizer";

let input = "a#content.active > div::first-line [data-content], a:not(:visited)";

Tokenizer.parse(input); // === expected
let expected = {
  type: "selectors",
  nodes: [
    {
      type: "selector",
      nodes: [
        { type: "element", name: "a" },
        { type: "id", name: "content" },
        { type: "class", name: "active" },
        { type: "operator", operator: ">", before: " ", after: " " },
        { type: "element", name: "div" },
        { type: "pseudo-element", name: "first-line" },
        { type: "spacing", value: " " },
        { type: "attribute", content: "data-content" },
      ]
    },
    {
      type: "selector",
      nodes: [
        { type: "element", name: "a" },
        { type: "nested-pseudo-class", name: "not", nodes: [
          {
            type: "selector",
            nodes: [
              { type: "pseudo-class", name: "visited" }
            ]
          }
        ] }
      ],
      before: " "
    }
  ]
}

Tokenizer.stringify(expected) // === input

// * => { type: "universal" }
// foo|element = { type: "element", name: "element", namespace: "foo" }
// *|* = { type: "universal", namespace: "*" }
// :has(h1, h2) => { type: "nested-pseudo-class", name: "has", nodes: [
//     {
//       type: "selector",
//       nodes: [
//         { type: "element", name: "h1" }
//       ]
//     },
//     {
//       type: "selector",
//       nodes: [
//         { type: "element", name: "h2" }
//       ],
//       before: " "
//     }
//   ] }
```

## Building

```
npm install
npm test
```

## Development

- `npm test -- -w` will watch `lib` and `test` for changes and retest

## License

MIT

## With thanks

- Mark Dalgleish
- Glen Maddern
- Guy Bedford

---
Tobias Koppers, 2015.

---
_Source: https://npm.io/package/css-selector-tokenizer · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._