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# postcss-selector-parser [![Build Status](https://travis-ci.org/postcss/postcss-selector-parser.svg?branch=master)](https://travis-ci.org/postcss/postcss-selector-parser) | |
> Selector parser with built in methods for working with selector strings. | |
## Install | |
With [npm](https://npmjs.com/package/postcss-selector-parser) do: | |
``` | |
npm install postcss-selector-parser | |
``` | |
## Quick Start | |
```js | |
const parser = require('postcss-selector-parser'); | |
const transform = selectors => { | |
selectors.walk(selector => { | |
// do something with the selector | |
console.log(String(selector)) | |
}); | |
}; | |
const transformed = parser(transform).processSync('h1, h2, h3'); | |
``` | |
To normalize selector whitespace: | |
```js | |
const parser = require('postcss-selector-parser'); | |
const normalized = parser().processSync('h1, h2, h3', {lossless: false}); | |
// -> h1,h2,h3 | |
``` | |
Async support is provided through `parser.process` and will resolve a Promise | |
with the resulting selector string. | |
## API | |
Please see [API.md](API.md). | |
## Credits | |
* Huge thanks to Andrey Sitnik (@ai) for work on PostCSS which helped | |
accelerate this module's development. | |
## License | |
MIT | |