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node_modules/rechoir/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2014-2019 Tyler Kellen <tyler@sleekcode.net>, Blaine Bublitz <blaine.bublitz@gmail.com>, and Eric Schoffstall <yo@contra.io>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

node_modules/rechoir/README.md

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+<p align="center">
+  <a href="http://gulpjs.com">
+    <img height="257" width="114" src="https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png">
+  </a>
+</p>
+
+# rechoir
+
+[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Travis Build Status][travis-image]][travis-url] [![AppVeyor Build Status][appveyor-image]][appveyor-url] [![Coveralls Status][coveralls-image]][coveralls-url] [![Gitter chat][gitter-image]][gitter-url]
+
+Prepare a node environment to require files with different extensions.
+
+## What is it?
+
+This module, in conjunction with [interpret]-like objects, can register any filetype the npm ecosystem has a module loader for. This library is a dependency of [Liftoff].
+
+**Note:** While `rechoir` will automatically load and register transpilers like `coffee-script`, you must provide a local installation. The transpilers are **not** bundled with this module.
+
+
+## rechoir for enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of rechoir and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-rechoir?utm_source=npm-rechoir&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
+
+
+## Usage
+
+```js
+const config = require('interpret').extensions;
+const rechoir = require('rechoir');
+rechoir.prepare(config, './test/fixtures/test.coffee');
+rechoir.prepare(config, './test/fixtures/test.csv');
+rechoir.prepare(config, './test/fixtures/test.toml');
+
+console.log(require('./test/fixtures/test.coffee'));
+console.log(require('./test/fixtures/test.csv'));
+console.log(require('./test/fixtures/test.toml'));
+```
+
+## API
+
+### `prepare(config, filepath, [cwd], [noThrow])`
+
+Look for a module loader associated with the provided file and attempt require it.  If necessary, run any setup required to inject it into [require.extensions](http://nodejs.org/api/globals.html#globals_require_extensions).
+
+`config` An [interpret]-like configuration object.
+
+`filepath` A file whose type you'd like to register a module loader for.
+
+`cwd` An optional path to start searching for the module required to load the requested file.  Defaults to the directory of `filepath`.
+
+`noThrow` An optional boolean indicating if the method should avoid throwing.
+
+If calling this method is successful (e.g. it doesn't throw), you can now require files of the type you requested natively.
+
+An error with a `failures` property will be thrown if the module loader(s) configured for a given extension cannot be registered.
+
+If a loader is already registered, this will simply return `true`.
+
+## License
+
+MIT
+
+[interpret]: http://github.com/gulpjs/interpret
+[Liftoff]: http://github.com/gulpjs/liftoff
+
+[downloads-image]: http://img.shields.io/npm/dm/rechoir.svg
+[npm-url]: https://www.npmjs.com/package/rechoir
+[npm-image]: http://img.shields.io/npm/v/rechoir.svg
+
+[travis-url]: https://travis-ci.org/gulpjs/rechoir
+[travis-image]: http://img.shields.io/travis/gulpjs/rechoir.svg?label=travis-ci
+
+[appveyor-url]: https://ci.appveyor.com/project/gulpjs/rechoir
+[appveyor-image]: https://img.shields.io/appveyor/ci/gulpjs/rechoir.svg?label=appveyor
+
+[coveralls-url]: https://coveralls.io/r/gulpjs/rechoir
+[coveralls-image]: http://img.shields.io/coveralls/gulpjs/rechoir/master.svg
+
+[gitter-url]: https://gitter.im/gulpjs/gulp
+[gitter-image]: https://badges.gitter.im/gulpjs/gulp.svg
+

node_modules/rechoir/index.js

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+var path = require('path');
+
+var extension = require('./lib/extension');
+var normalize = require('./lib/normalize');
+var register = require('./lib/register');
+
+exports.prepare = function(extensions, filepath, cwd, nothrow) {
+  var config, usedExtension, err, option, attempt, error;
+  var attempts = [];
+  var onlyErrors = true;
+  var exts = extension(filepath);
+
+  if (exts) {
+    exts.some(function(ext) {
+      usedExtension = ext;
+      config = normalize(extensions[ext]);
+      return !!config;
+    });
+  }
+
+  if (Object.keys(require.extensions).indexOf(usedExtension) !== -1) {
+    return true;
+  }
+
+  if (!config) {
+    if (nothrow) {
+      return;
+    }
+
+    throw new Error('No module loader found for "' + usedExtension + '".');
+  }
+
+  if (!cwd) {
+    cwd = path.dirname(path.resolve(filepath));
+  }
+  if (!Array.isArray(config)) {
+    config = [config];
+  }
+
+  for (var i in config) {
+    option = config[i];
+    attempt = register(cwd, option.module, option.register);
+    error = (attempt instanceof Error) ? attempt : null;
+    if (error) {
+      attempt = null;
+    }
+    attempts.push({
+      moduleName: option.module,
+      module: attempt,
+      error: error,
+    });
+    if (!error) {
+      onlyErrors = false;
+      break;
+    }
+  }
+  if (onlyErrors) {
+    err = new Error('Unable to use specified module loaders for "' + usedExtension + '".');
+    err.failures = attempts;
+    if (nothrow) {
+      return err;
+    }
+
+    throw err;
+  }
+  return attempts;
+};

node_modules/rechoir/lib/extension.js

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+'use strict';
+
+var path = require('path');
+
+function getLongExtension(basename) {
+  if (basename[basename.length - 1] === '.') {
+    return null;
+  }
+
+  var startIndex = (basename[0] === '.') ? 1 : 0;
+
+  var dotIndex = basename.indexOf('.', startIndex);
+  if (dotIndex <= startIndex) {
+    return null;
+  }
+
+  return basename.slice(dotIndex);
+}
+
+function getPossibleExtensions(longExtension) {
+  var arr = [longExtension];
+  var len = longExtension.length;
+  var startIndex = 1;
+
+  while (startIndex < len) {
+    var dotIndex = longExtension.indexOf('.', startIndex);
+    if (dotIndex < 0) {
+      break;
+    }
+    arr.push(longExtension.slice(dotIndex));
+    startIndex = dotIndex + 1;
+  }
+
+  return arr;
+}
+
+module.exports = function(input) {
+  var basename = path.basename(input);
+  var longExtension = getLongExtension(basename);
+  if (!longExtension) {
+    return;
+  }
+  return getPossibleExtensions(longExtension);
+};

node_modules/rechoir/lib/normalize.js

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+function normalizer(config) {
+  if (typeof config === 'string') {
+    return { module: config };
+  }
+  return config;
+}
+
+module.exports = function(config) {
+  if (Array.isArray(config)) {
+    return config.map(normalizer);
+  }
+  return normalizer(config);
+};

node_modules/rechoir/lib/register.js

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+var resolve = require('resolve');
+
+module.exports = function(cwd, moduleName, register) {
+  var result;
+  try {
+    var modulePath = resolve.sync(moduleName, { basedir: cwd });
+    result = require(modulePath);
+    if (typeof register === 'function') {
+      register(result);
+    }
+  } catch (e) {
+    result = e;
+  }
+  return result;
+};

node_modules/rechoir/package.json

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+{
+  "name": "rechoir",
+  "version": "0.7.1",
+  "description": "Prepare a node environment to require files with different extensions.",
+  "author": "Gulp Team <team@gulpjs.com> (http://gulpjs.com/)",
+  "contributors": [
+    "Blaine Bublitz <blaine.bublitz@gmail.com>",
+    "Tyler Kellen <tyler@sleekcode.net> (http://goingslowly.com/)"
+  ],
+  "repository": "gulpjs/rechoir",
+  "license": "MIT",
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "main": "index.js",
+  "files": [
+    "LICENSE",
+    "index.js",
+    "lib/"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "pretest": "rm -rf tmp/ && npm run lint",
+    "test": "mocha --async-only test test/lib",
+    "cover": "istanbul cover _mocha --report lcovonly test test/lib",
+    "coveralls": "npm run cover && istanbul-coveralls"
+  },
+  "dependencies": {
+    "resolve": "^1.9.0"
+  },
+  "devDependencies": {
+    "eslint": "^2.13.0",
+    "eslint-config-gulp": "^3.0.1",
+    "expect": "^1.20.2",
+    "istanbul": "^0.4.3",
+    "istanbul-coveralls": "^1.0.3",
+    "mocha": "^3.5.3"
+  },
+  "keywords": [
+    "require",
+    "loader",
+    "extension",
+    "extensions",
+    "prepare"
+  ]
+}