		@@ -1,3 +0,12 @@
		## 2.3.1 (2016-03-16)
		# Changes to PostCSS Nesting

		### 3.0.0 (May 8, 2017)

		- Added: Node 4.x support
		- Added: PostCSS 6 support
		- Added: Preserved ordering
		- Removed: Node 0.12 support

		### 2.3.1 (March 16, 2016)

		- Updated: Allow any direct nesting that follows the syntactic constraints
		@@ -9,3 +18,3 @@ - Updated: PostCSS 5.0.6

		## 2.3.0 (2016-02-20)
		### 2.3.0 (February 20, 2016)

		@@ -16,3 +25,3 @@ - Updated: JavaScript formatting, linting, tests, and documentation

		## 2.2.0 (2016-01-30)
		### 2.2.0 (January 30, 2016)

		@@ -23,15 +32,15 @@ - Added: Nesting of all at-rules

		## 2.1.1 (2016-01-03)
		### 2.1.1 (January 3, 2016)

		- Updated: Project conventions

		## 2.1.0 (2016-01-03)
		### 2.1.0 (January 3, 2016)

		- Added: Support for valid direct nesting

		## 2.0.6 (2015-10-15)
		### 2.0.6 (October 15, 2015)

		- Fixed: Issue with new PostCSS rules

		## 2.0.5 (2015-10-12)
		### 2.0.5 (October 12, 2015)

		@@ -43,7 +52,7 @@ - Updated: Nested rules source map to the parent rule

		## 2.0.4 (2015-09-23)
		### 2.0.4 (September 23, 2015)

		- Updated: Map source raws

		## 2.0.3 (2015-09-22)
		### 2.0.3 (September 22, 2015)

		@@ -54,7 +63,7 @@ - Updated: Refactored plugin

		## 2.0.2 (2015-09-16)
		### 2.0.2 (September 16, 2015)

		- Fixed: Issue where the new rule’s children were not mapped to the parent internally

		## 2.0.1 (2015-09-16)
		### 2.0.1 (September 16, 2015)

		@@ -64,3 +73,3 @@ - Fixed: Issue where a `@nest` rule followed by another bubbling at-rule would not bubble

		## 2.0.0 (2015-09-16)
		### 2.0.0 (September 16, 2015)

		@@ -72,3 +81,3 @@ - Added: Requirement of `&` per the specification

		## 1.0.0 (2015-09-15)
		### 1.0.0 (September 15, 2015)

		@@ -79,4 +88,4 @@ - Added: New `@nest` at-rule syntax

		## 0.1.0 (2015-06-17)
		### 0.1.0 (June 17, 2015)

		- Added: Initial release

120

index.js

		@@ -1,98 +0,38 @@
		var postcss = require('postcss');
		var comma = postcss.list.comma;
		'use strict';

		module.exports = postcss.plugin('postcss-nesting', function (opts) {
		var bubble = ['document', 'media', 'supports'];
		var name = 'nest';
		// tooling
		const postcss = require('postcss');
		const transformBubblingAtrule = require('./lib/transform-bubbling-atrule');
		const transformNestingAtRule = require('./lib/transform-nesting-atrule');
		const transformNestingRule = require('./lib/transform-nesting-rule');

		if (opts && opts.bubble) {
		bubble = bubble.concat(opts.bubble);
		}
		// plugin
		module.exports = postcss.plugin('postcss-nesting', () => {
		return walk;
		});

		if (opts && opts.prefix) {
		name = '-' + opts.prefix + '-' + name;
		function walk(node) {
		// console.log('walk', [node.type], [node.name \|\| node.selector \|\| node.prop \|\| 'root'], node.nodes ? `length: ${node.nodes.length}` : `value: "${node.value}"`);

		if (transformBubblingAtrule.test(node)) {
		// conditionally transform a bubbling atrule
		transformBubblingAtrule(node);
		} else if (transformNestingAtRule.test(node)) {
		// conditionally transform a nesting atrule
		node = transformNestingAtRule(node); // eslint-disable-line no-param-reassign
		} else if (transformNestingRule.test(node)) {
		// conditionally transform a nesting rule
		transformNestingRule(node);
		}

		return function (css) {
		css.walk(function (target) {
		var rule = target.parent;
		var root = rule && rule.parent;
		if (node.nodes) {
		// conditionally walk the children of the node
		let childNode = node.nodes[0];

		var isAtRule = target.type === 'atrule';
		var isRule = target.type === 'rule';
		while (childNode) {
		walk(childNode);

		if (root && rule.type === 'rule') {
		var newrule = postcss.rule({
		source: target.source
		});

		if (isRule && target.selectors.every(function (selector) {
		return selector.indexOf('&') === 0;
		})) {
		target.remove();

		newrule.selector = target.selector;

		newrule.append(target.nodes);

		transpileSelectors(rule, newrule);

		root.insertAfter(rule.insertAfterNode \|\| rule, newrule);

		rule.insertAfterNode = newrule;
		} else if (isAtRule && target.name === name && target.params.indexOf('&') !== -1) {
		target.remove();

		newrule.selector = target.params;

		newrule.append(target.nodes);

		transpileSelectors(rule, newrule);

		root.insertAfter(rule.insertAfterNode \|\| rule, newrule);

		rule.insertAfterNode = newrule;
		} else if (isAtRule && bubble.indexOf(target.name) !== -1) {
		var selector = rule.selector;

		if (root.type === 'atrule' && root.name === target.name && root.parent) {
		target.params = comma(root.params).map(function (params1) {
		return comma(target.params).map(function (params2) {
		return params1 + ' and ' + params2;
		}).join(', ');
		}).join(', ');

		rule = root;
		root = root.parent;
		}

		target.remove();

		newrule.selector = selector;

		newrule.append(target.nodes);

		target.removeAll();

		target.append(newrule);

		root.insertAfter(rule.insertAfterNode \|\| rule, target);

		rule.insertAfterNode = target;
		}
		}
		});
		};
		});

		function transpileSelectors(fromRule, toRule) {
		var selectors = [];

		fromRule.selectors.forEach(function (fromSelector) {
		toRule.selectors.forEach(function (toSelector) {
		selectors.push(toSelector.replace(/&/g, fromSelector));
		});
		});

		toRule.selectors = selectors;
		childNode = childNode.parent && childNode.parent.nodes[childNode.parent.nodes.indexOf(childNode) + 1];
		}
		}
		}

107

LICENSE.md

		@@ -1,15 +0,106 @@
		# CC0 1.0 Universal License
		# CC0 1.0 Universal

		Public Domain Dedication
		## Statement of Purpose

		The person(s) who associated a work with this deed has dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
		The laws of most jurisdictions throughout the world automatically confer
		exclusive Copyright and Related Rights (defined below) upon the creator and
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		For these and/or other purposes and motivations, and without any expectation of
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		Unless expressly stated otherwise, the person(s) who associated a work with this deed makes no warranties about the work, and disclaims liability for all uses of the work, to the fullest extent permitted by applicable law.
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		partial invalidity or ineffectiveness shall not invalidate the remainder of the
		License, and in such case Affirmer hereby affirms that he or she will not (i)
		exercise any of his or her remaining Copyright and Related Rights in the Work
		or (ii) assert any associated claims and causes of action with respect to the
		Work, in either case contrary to Affirmer’s express Statement of Purpose.

		4. Limitations and Disclaimers.
		1. No trademark or patent rights held by Affirmer are waived, abandoned,
		surrendered, licensed or otherwise affected by this document.
		2. Affirmer offers the Work as-is and makes no representations or
		warranties of any kind concerning the Work, express, implied, statutory
		or otherwise, including without limitation warranties of title,
		merchantability, fitness for a particular purpose, non infringement, or
		the absence of latent or other defects, accuracy, or the present or
		absence of errors, whether or not discoverable, all to the greatest
		extent permissible under applicable law.
		3. Affirmer disclaims responsibility for clearing rights of other persons
		that may apply to the Work or any use thereof, including without
		limitation any person’s Copyright and Related Rights in the Work.
		Further, Affirmer disclaims responsibility for obtaining any necessary
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package.json

		{
		"name": "postcss-nesting",
		"version": "2.3.1",
		"description": "Transpiles nested rules according to CSS Nesting Module Level 3",
		"version": "3.0.0",
		"description": "Nest style and media rules inside each another, following the CSS Nesting Module Level 3 specification",
		"author": "Jonathan Neal <jonathantneal@hotmail.com>",
		"license": "CC0-1.0",
		"repository": "jonathantneal/postcss-nesting",
		"homepage": "https://github.com/jonathantneal/postcss-nesting#readme",
		"bugs": "https://github.com/jonathantneal/postcss-nesting/issues",
		"main": "index.js",
		"files": [
		"index.js",
		"lib"
		],
		"scripts": {
		"clean": "git clean -X -d -f",
		"prepublish": "npm test",
		"test": "echo 'Running tests...'; npm run test:js && npm run test:tape",
		"test:js": "eslint *.js --cache --ignore-pattern .gitignore",
		"test:tape": "postcss-tape"
		},
		"engines": {
		"node": ">=4.0.0"
		},
		"dependencies": {
		"postcss": "^6.0.1"
		},
		"devDependencies": {
		"eslint": "^3.19.0",
		"eslint-config-dev": "^2.0.0",
		"postcss-tape": "^2.0.1",
		"pre-commit": "^1.2.2"
		},
		"eslintConfig": {
		"extends": "dev"
		},
		"keywords": [
		@@ -17,29 +49,8 @@ "postcss",
		"selectors",
		"syntax",
		"specifications",
		"specs",
		"w3c"
		],
		"author": "Jonathan Neal <jonathantneal@hotmail.com>",
		"license": "CC0-1.0",
		"repository": "jonathantneal/postcss-nesting",
		"bugs": "https://github.com/jonathantneal/postcss-nesting/issues",
		"homepage": "https://github.com/jonathantneal/postcss-nesting",
		"dependencies": {
		"postcss": "^5.0.19"
		},
		"devDependencies": {
		"eslint": "^2.4.0",
		"jscs": "^2.11.0",
		"tap-spec": "^4.1.1",
		"tape": "^4.5.1"
		},
		"scripts": {
		"lint": "eslint .js --ignore-path .gitignore && jscs .js",
		"tape": "tape test.js \| tap-spec",
		"test": "npm run lint && npm run tape"
		},
		"engines": {
		"iojs": ">=2.0.0",
		"node": ">=0.12.0"
		}
		"w3c",
		"csswg"
		]
		}

130

README.md

		@@ -1,85 +0,30 @@
		# CSS Nesting
		# PostCSS Nesting [<img src="https://postcss.github.io/postcss/logo.svg" alt="PostCSS Logo" width="90" height="90" align="right">][postcss]

		<a href="https://github.com/postcss/postcss"><img src="http://postcss.github.io/postcss/logo.svg" alt="PostCSS Logo" width="80" height="80" align="right"></a>
		[![NPM Version][npm-img]][npm-url]
		[![Build Status][cli-img]][cli-url]
		[![Licensing][lic-img]][lic-url]
		[![Changelog][log-img]][log-url]
		[![Gitter Chat][git-img]][git-url]

		[![NPM Version][npm-img]][npm] [![Build Status][ci-img]][ci]
		[PostCSS Nesting] lets you nest style rules inside each other, following the
		[CSS Nesting Module Level 3] specification.

		[CSS Nesting] allows you to nest one style rule inside another, following the [CSS Nesting Module Level 3] specification.

		```css
		/* direct nesting */

		a, b {
		color: red;
		color: red;

		& c, & d {
		color: white;
		}

		& & {
		color: blue;
		}

		&:hover {
		color: black;
		}

		@media (min-width: 30em) {
		color: yellow;

		@media (min-device-pixel-ratio: 1.5) {
		color: green;
		}
		}
		& c, & d {
		color: white;
		}
		}

		/* or at-rule nesting */
		/* after postcss-nesting */

		a, b {
		color: red;

		@nest & c, & d {
		color: white;
		}

		@nest & & {
		color: blue;
		}

		@nest &:hover {
		color: black;
		}

		@media (min-width: 30em) {
		color: yellow;
		}
		color: red;
		}

		/* after */

		a, b {
		color: red;
		}

		a c, a d, b c, b d {
		color: white;
		color: white;
		}

		a a, b b {
		color: blue;
		}

		a:hover, b:hover {
		color: black;
		}

		@media (min-width: 30em) {
		a, b {
		color: yellow;
		}
		}

		@media (min-width: 30em) and (min-device-pixel-ratio: 1.5) {
		color: green;
		}
		```
		@@ -89,3 +34,3 @@

		Add [CSS Nesting] to your build tool:
		Add [PostCSS Nesting] to your build tool:

		@@ -98,2 +43,4 @@ ```bash

		Use [PostCSS Nesting] to process your CSS:

		```js
		@@ -111,3 +58,3 @@ require('postcss-nesting').process(YOUR_CSS, { /* options */ });

		Load [CSS Nesting] as a PostCSS plugin:
		Use [PostCSS Nesting] as a plugin:

		@@ -128,3 +75,3 @@ ```js

		Enable [CSS Nesting] within your Gulpfile:
		Use [PostCSS Nesting] in your Gulpfile:

		@@ -153,3 +100,3 @@ ```js

		Enable [CSS Nesting] within your Gruntfile:
		Use [PostCSS Nesting] in your Gruntfile:

		@@ -173,29 +120,18 @@ ```js

		## Options

		#### `bubble`

		Type: `Array`
		Default: `['document', 'media', 'supports']`

		Specifies additional at-rules whose contents should be transpiled so that the at-rule comes first. By default, `@media`, `@supports` and `@document` will do this.

		#### `prefix`

		Type: `String`
		Default: `null`

		Specifies a prefix to be surrounded by dashes before the `@nest` at-rule (e.g. `@-x-nest`).

		[ci]: https://travis-ci.org/jonathantneal/postcss-nesting
		[ci-img]: https://img.shields.io/travis/jonathantneal/postcss-nesting.svg
		[npm]: https://www.npmjs.com/package/postcss-nesting
		[npm-url]: https://www.npmjs.com/package/postcss-nesting
		[npm-img]: https://img.shields.io/npm/v/postcss-nesting.svg
		[cli-url]: https://travis-ci.org/jonathantneal/postcss-nesting
		[cli-img]: https://img.shields.io/travis/jonathantneal/postcss-nesting.svg
		[lic-url]: LICENSE.md
		[lic-img]: https://img.shields.io/npm/l/postcss-nesting.svg
		[log-url]: CHANGELOG.md
		[log-img]: https://img.shields.io/badge/changelog-md-blue.svg
		[git-url]: https://gitter.im/postcss/postcss
		[git-img]: https://img.shields.io/badge/chat-gitter-blue.svg

		[Gulp PostCSS]: https://github.com/postcss/gulp-postcss
		[PostCSS Nesting]: https://github.com/jonathantneal/postcss-nesting
		[PostCSS]: https://github.com/postcss/postcss
		[Gulp PostCSS]: https://github.com/postcss/gulp-postcss
		[Grunt PostCSS]: https://github.com/nDmitry/grunt-postcss
		[PostCSS]: https://github.com/postcss/postcss

		[CSS Nesting Module Level 3]: http://tabatkins.github.io/specs/css-nesting/

		[CSS Nesting]: https://github.com/jonathantneal/postcss-nesting

.editorconfig

.eslintrc

.jscsrc

.npmignore

.travis.yml

CONTRIBUTING.md

test.js

test/basic.actual.css

test/basic.css

test/basic.expect.css

test/direct.actual.css

test/direct.css

test/direct.expect.css

test/ignore.actual.css

test/ignore.css

test/ignore.expect.css

test/media.actual.css

test/media.css

test/media.expect.css

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