postcss-prefixer


[PostCSS]: https://github.com/postcss/postcss
[PostCSS Usage]: https://github.com/postcss/postcss#usage

A [PostCSS] plugin to prefix css selectors.

```css
/ source css file /

#selector { / content / }

.selector { / content / }

.selector:hover { / content / }

.selector__element { / content / }
``

``css
/ output css file prefixed with "prfx__" /

#prfx__selector { / content / }

.prfx__selector { / content / }

.prfx__selector:hover { / content / }

.prfx__selector__element { / content / }
``

Usage

npm i -D postcss postcss-prefixer or yarn add -D postcss postcss-prefixer

create a postcss.config.js with:
`js
module.exports = {
plugins: [
require('postcss-prefixer')({ / options / })
]
}
`

> Refer to [PostCSS Usage] on how to use it with your preferred build tool.

#### Example
`js
const postcss = require('postcss');
const prefixer = require('postcss-prefixer');

const input = fs.readFileSync('path/to/file.css', 'utf-8');

const output = postcss([
prefixer({
prefix: 'prefix-',
ignore: [ /selector-/, '.ignore', '#ignore' ],
ignoreFiles: [ /.module.scss/ ]
})
]).process(input);
`

#### Options
| Name | Description |
|-----------------------|--------------------------------------------|
| prefix (string) | prefix value to be used |
| ignore (array) | list of selectors to ignore, accepts regex |
| ignoreFiles` (array) | list of files to ignore, accepts regex |

Credits

Plugin based on postcss-class-prefix create by thompsongl.