File: //opt/code/node_modules/cssnano/node_modules/postcss-calc/package.json
{
"name": "postcss-calc",
"version": "5.3.1",
"description": "PostCSS plugin to reduce calc()",
"keywords": [
"css",
"postcss",
"postcss-plugin",
"calculation",
"calc"
],
"author": {
"name": "Maxime Thirouin"
},
"license": "MIT",
"repository": {
"type": "git",
"url": "https://github.com/postcss/postcss-calc.git"
},
"files": [
"index.js"
],
"dependencies": {
"postcss-message-helpers": "^2.0.0",
"reduce-css-calc": "^1.2.6",
"postcss": "^5.0.2"
},
"devDependencies": {
"eslint": "^1.0.0",
"npmpub": "^3.1.0",
"postcss-custom-properties": "^5.0.0",
"tape": "^3.0.0"
},
"scripts": {
"test": "eslint . && tape test",
"release": "npmpub"
},
"readme": "# postcss-calc [](https://travis-ci.org/postcss/postcss-calc)\n\n> [PostCSS](https://github.com/postcss/postcss) plugin to reduce `calc()`.\n\nThis plugin reduce `calc()` references whenever it's possible.\nThis can be particularly useful with the [postcss-custom-properties](https://github.com/postcss/postcss-custom-properties) plugin.\n\n**Note:** When multiple units are mixed together in the same expression, the `calc()` statement is left as is, to fallback to the [w3c calc() feature](http://www.w3.org/TR/css3-values/#calc).\n\n## Installation\n\n```console\n$ npm install postcss-calc\n```\n\n## Usage\n\n```js\n// dependencies\nvar fs = require(\"fs\")\nvar postcss = require(\"postcss\")\nvar calc = require(\"postcss-calc\")\n\n// css to be processed\nvar css = fs.readFileSync(\"input.css\", \"utf8\")\n\n// process css\nvar output = postcss()\n .use(calc())\n .process(css)\n .css\n```\n\n**Example** (with [postcss-custom-properties](https://github.com/postcss/postcss-custom-properties) enabled as well):\n\n```js\n// dependencies\nvar fs = require(\"fs\")\nvar postcss = require(\"postcss\")\nvar customProperties = require(\"postcss-custom-properties\")\nvar calc = require(\"postcss-calc\")\n\n// css to be processed\nvar css = fs.readFileSync(\"input.css\", \"utf8\")\n\n// process css\nvar output = postcss()\n .use(customProperties())\n .use(calc())\n .process(css)\n .css\n```\n\nUsing this `input.css`:\n\n```css\n:root {\n --main-font-size: 16px;\n}\n\nbody {\n font-size: var(--main-font-size);\n}\n\nh1 {\n font-size: calc(var(--main-font-size) * 2);\n height: calc(100px - 2em);\n margin-bottom: calc(\n var(--main-font-size)\n * 1.5\n )\n}\n```\n\nyou will get:\n\n```css\nbody {\n font-size: 16px\n}\n\nh1 {\n font-size: 32px;\n height: calc(100px - 2em);\n margin-bottom: 24px\n}\n```\n\nCheckout [tests](test) for more examples.\n\n### Options\n\n#### `precision` (default: `5`)\n\nAllow you to definine the precision for decimal numbers.\n\n```js\nvar out = postcss()\n .use(calc({precision: 10}))\n .process(css)\n .css\n```\n\n#### `preserve` (default: `false`)\n\nAllow you to preserve calc() usage in output so browsers will handle decimal precision themselves.\n\n```js\nvar out = postcss()\n .use(calc({preserve: true}))\n .process(css)\n .css\n```\n\n#### `warnWhenCannotResolve` (default: `false`)\n\nAdds warnings when calc() are not reduced to a single value.\n\n```js\nvar out = postcss()\n .use(calc({warnWhenCannotResolve: true}))\n .process(css)\n .css\n```\n\n#### `mediaQueries` (default: `false`)\n\nAllows calc() usage as part of media query declarations.\n\n```js\nvar out = postcss()\n .use(calc({mediaQueries: true}))\n .process(css)\n .css\n```\n\n#### `selectors` (default: `false`)\n\nAllows calc() usage as part of selectors.\n\n```js\nvar out = postcss()\n .use(calc({selectors: true}))\n .process(css)\n .css\n```\n\nExample:\n\n```css\ndiv[data-size=\"calc(3*3)\"] {\n width: 100px;\n}\n```\n\n---\n\n## Contributing\n\nWork on a branch, install dev-dependencies, respect coding style & run tests before submitting a bug fix or a feature.\n\n```console\n$ git clone https://github.com/postcss/postcss-calc.git\n$ git checkout -b patch-1\n$ npm install\n$ npm test\n```\n\n## [Changelog](CHANGELOG.md)\n\n## [License](LICENSE)\n",
"readmeFilename": "README.md",
"bugs": {
"url": "https://github.com/postcss/postcss-calc/issues"
},
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