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[6a3a178] | 1 | # postcss-selector-matches [![CSS Standard Status](https://cssdb.org/badge/matches-pseudo-class.svg)](https://cssdb.org/#matches-pseudo-class) [![Build Status](https://travis-ci.org/postcss/postcss-selector-matches.svg?branch=master)](https://travis-ci.org/postcss/postcss-selector-matches)
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| 2 |
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| 3 | > PostCSS plugin to transform `:matches()` W3C CSS pseudo class to more compatible CSS selectors
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| 4 |
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| 5 | http://dev.w3.org/csswg/selectors-4/#matches
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| 6 |
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| 7 | ## Installation
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| 8 |
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| 9 | ```console
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| 10 | $ npm install postcss-selector-matches
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| 11 | ```
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| 12 |
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| 13 | ## Usage
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| 14 |
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| 15 | ```js
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| 16 | var postcss = require("postcss")
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| 17 |
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| 18 | var output = postcss()
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| 19 | .use(require("postcss-selector-matches"))
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| 20 | .process(require("fs").readFileSync("input.css", "utf8"))
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| 21 | .css
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| 22 | ```
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| 23 |
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| 24 | Using this `input.css`:
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| 25 |
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| 26 | ```css
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| 27 | p:matches(:first-child, .special) {
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| 28 | color: red;
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| 29 | }
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| 30 | ```
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| 31 |
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| 32 | you will get:
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| 33 |
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| 34 | ```css
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| 35 | p:first-child, p.special {
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| 36 | color: red;
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| 37 | }
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| 38 | ```
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| 39 |
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| 40 | **Note that if you are doing crazy selector like `p:matches(a) {}` you are likely to get crazy results (like `pa {}`)**.
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| 41 |
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| 42 |
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| 43 | ## Options
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| 44 |
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| 45 | ### `lineBreak`
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| 46 |
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| 47 | (default: `false`)
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| 48 |
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| 49 | Allows you to introduce a line break between generated selectors.
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| 50 |
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| 51 | ---
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| 52 |
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| 53 | ## [Changelog](CHANGELOG.md)
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| 54 |
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| 55 | ## [License](LICENSE)
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