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  "author": {
    "email": "beneb.info@gmail.com",
    "name": "Ben Briggs",
    "url": "http://beneb.info"
  },
  "bugs": {
    "url": "https://github.com/postcss/postcss-filter-plugins/issues"
  },
  "dependencies": {
    "postcss": "^5.0.4",
    "uniqid": "^1.0.0"
  },
  "description": "Exclude/warn on duplicated PostCSS plugins.",
  "devDependencies": {
    "babel": "^5.8.23",
    "babel-tape-runner": "^1.2.0",
    "postcss-minify-font-weight": "^1.0.1",
    "tap-spec": "^4.1.0",
    "tape": "^4.2.0"
  },
  "files": [
    "LICENSE-MIT",
    "dist"
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  "homepage": "https://github.com/postcss/postcss-filter-plugins",
  "keywords": [
    "css",
    "postcss",
    "postcss-plugin"
  ],
  "license": "MIT",
  "main": "dist/index.js",
  "name": "postcss-filter-plugins",
  "optionalDependencies": {},
  "readme": "# [postcss][postcss]-filter-plugins [![Build Status](https://travis-ci.org/postcss/postcss-filter-plugins.svg?branch=master)][ci]\n\n> Exclude/warn on duplicated PostCSS plugins.\n\n## Install\n\nWith [npm](https://npmjs.org/package/postcss-filter-plugins) do:\n\n```console\n$ npm install postcss-filter-plugins --save\n```\n\n## Example\n\nNote that this plugin does not actually transform your CSS; instead, it ensures\nthat plugins in the PostCSS instance are not duplicated. It is intended to be\nused by plugin packs such as [cssnano] or [cssnext].\n\n```js\nvar counter = postcss.plugin('counter', function () {\n    return function (css) {\n        css.eachDecl('foo', function (decl) {\n            let value = parseInt(decl.value, 10);\n            value += 1;\n            decl.value = String(value);\n        });\n    }\n});\n\nvar css = 'h1 { foo: 1 }';\nvar out = postcss([\n    filter(),\n    counter(),\n    counter()\n]).process(css).css;\n\nconsole.log(out);\n// => h1 { foo: 2 }\n// Note that you will get a PostCSS warning in the message registry\n```\n\n## API\n\n### filterPlugins([options])\n\n#### options\n\n##### direction\n\nType: `string`\nDefault: `'both'`\n\nPass `'forward'`, `'backward'`, or `'both'` to customise the direction in which the\nplugin will look in the plugins array. See the [tests] for examples on how this\nworks.\n\n```js\npostcss([ filter({\n    direction: 'forward'\n}) ]).process(css).css);\n```\n\n##### exclude\n\nType: `array`\nDefault: `[] (empty)`\n\nPlugins that should be excluded from the filter. Pass an array of plugin names.\n\n```js\npostcss([ filter({\n    exclude: ['postcss-cssstats']\n}) ]).process(css).css);\n```\n\n##### silent\n\nType: `boolean`\nDefault: `false`\n\nSet this to true to disable the plugin from emitting any PostCSS warnings.\n\n```js\npostcss([ filter({\n    silent: true\n}) ]).process(css).css);\n```\n\n##### template\n\nType: `function`\nDefault: `format function`\n\nThis function will be passed each PostCSS plugin object. You are expected to\nreturn a string from each call, which is then used to warn the user about her\nduplicated plugins.\n\n```js\npostcss([ filter({\n    template: function (plugin) {\n        return 'Duplicate plugin found: ' + plugin.postcssPlugin;\n    }\n}) ]).process(css).css);\n```\n\n## Usage\n\nSee the [PostCSS documentation](https://github.com/postcss/postcss#usage) for\nexamples for your environment.\n\n## Contributing\n\nPull requests are welcome. If you add functionality, then please add unit tests\nto cover it.\n\n## License\n\nMIT © [Ben Briggs](http://beneb.info)\n\n[ci]:      https://travis-ci.org/postcss/postcss-filter-plugins\n[cssnano]: http://cssnano.co\n[cssnext]: http://cssnext.io\n[postcss]: https://github.com/postcss/postcss\n[tests]:   src/__tests__\n",
  "readmeFilename": "README.md",
  "repository": {
    "type": "git",
    "url": "git+https://github.com/postcss/postcss-filter-plugins.git"
  },
  "scripts": {
    "prepublish": "babel src --out-dir dist --ignore /__tests__/",
    "test": "npm run test-unformatted | tap-spec",
    "test-unformatted": "babel-tape-runner \"src/**/__tests__/*.js\""
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  "version": "2.0.0"
}