188 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			188 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| <p align="center">
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|   <a href="http://gulpjs.com">
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|     <img height="257" width="114" src="https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png">
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|   </a>
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| </p>
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| 
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| # interpret
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| 
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| [![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]
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| 
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| A dictionary of file extensions and associated module loaders.
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| 
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| ## What is it
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| This is used by [Liftoff](http://github.com/tkellen/node-liftoff) to automatically require dependencies for configuration files, and by [rechoir](http://github.com/tkellen/node-rechoir) for registering module loaders.
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| 
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| ## API
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| 
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| ### extensions
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| Map file types to modules which provide a [require.extensions] loader.
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| 
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| ```js
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| {
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|   '.babel.js': [
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|     {
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|       module: '@babel/register',
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|       register: function(hook) {
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|         // register on .js extension due to https://github.com/joyent/node/blob/v0.12.0/lib/module.js#L353
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|         // which only captures the final extension (.babel.js -> .js)
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|         hook({ extensions: '.js' });
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|       },
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|     },
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|     {
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|       module: 'babel-register',
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|       register: function(hook) {
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|         hook({ extensions: '.js' });
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|       },
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|     },
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|     {
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|       module: 'babel-core/register',
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|       register: function(hook) {
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|         hook({ extensions: '.js' });
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|       },
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|     },
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|     {
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|       module: 'babel/register',
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|       register: function(hook) {
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|         hook({ extensions: '.js' });
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|       },
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|     },
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|   ],
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|   '.babel.ts': [
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|     {
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|       module: '@babel/register',
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|       register: function(hook) {
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|         hook({ extensions: '.ts' });
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|       },
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|     },
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|   ],
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|   '.buble.js': 'buble/register',
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|   '.cirru': 'cirru-script/lib/register',
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|   '.cjsx': 'node-cjsx/register',
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|   '.co': 'coco',
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|   '.coffee': ['coffeescript/register', 'coffee-script/register', 'coffeescript', 'coffee-script'],
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|   '.coffee.md': ['coffeescript/register', 'coffee-script/register', 'coffeescript', 'coffee-script'],
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|   '.csv': 'require-csv',
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|   '.eg': 'earlgrey/register',
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|   '.esm.js': {
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|     module: 'esm',
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|     register: function(hook) {
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|       // register on .js extension due to https://github.com/joyent/node/blob/v0.12.0/lib/module.js#L353
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|       // which only captures the final extension (.babel.js -> .js)
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|       var esmLoader = hook(module);
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|       require.extensions['.js'] = esmLoader('module')._extensions['.js'];
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|     },
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|   },
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|   '.iced': ['iced-coffee-script/register', 'iced-coffee-script'],
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|   '.iced.md': 'iced-coffee-script/register',
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|   '.ini': 'require-ini',
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|   '.js': null,
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|   '.json': null,
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|   '.json5': 'json5/lib/require',
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|   '.jsx': [
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|     {
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|       module: '@babel/register',
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|       register: function(hook) {
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|         hook({ extensions: '.jsx' });
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|       },
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|     },
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|     {
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|       module: 'babel-register',
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|       register: function(hook) {
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|         hook({ extensions: '.jsx' });
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|       },
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|     },
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|     {
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|       module: 'babel-core/register',
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|       register: function(hook) {
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|         hook({ extensions: '.jsx' });
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|       },
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|     },
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|     {
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|       module: 'babel/register',
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|       register: function(hook) {
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|         hook({ extensions: '.jsx' });
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|       },
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|     },
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|     {
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|       module: 'node-jsx',
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|       register: function(hook) {
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|         hook.install({ extension: '.jsx', harmony: true });
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|       },
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|     },
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|   ],
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|   '.litcoffee': ['coffeescript/register', 'coffee-script/register', 'coffeescript', 'coffee-script'],
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|   '.liticed': 'iced-coffee-script/register',
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|   '.ls': ['livescript', 'LiveScript'],
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|   '.mjs': '/absolute/path/to/interpret/mjs-stub.js',
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|   '.node': null,
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|   '.toml': {
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|     module: 'toml-require',
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|     register: function(hook) {
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|       hook.install();
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|     },
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|   },
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|   '.ts': [
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|     'ts-node/register',
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|     'typescript-node/register',
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|     'typescript-register',
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|     'typescript-require',
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|     'sucrase/register/ts',
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|     {
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|       module: '@babel/register',
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|       register: function(hook) {
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|         hook({ extensions: '.ts' });
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|       },
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|     },
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|   ],
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|   '.tsx': [
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|     'ts-node/register',
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|     'typescript-node/register',
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|     'sucrase/register',
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|     {
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|       module: '@babel/register',
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|       register: function(hook) {
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|         hook({ extensions: '.tsx' });
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|       },
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|     },
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|   ],
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|   '.wisp': 'wisp/engine/node',
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|   '.xml': 'require-xml',
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|   '.yaml': 'require-yaml',
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|   '.yml': 'require-yaml',
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| }
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| ```
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| 
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| ### jsVariants
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| Same as above, but only include the extensions which are javascript variants.
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| 
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| ## How to use it
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| 
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| Consumers should use the exported `extensions` or `jsVariants` object to determine which module should be loaded for a given extension. If a matching extension is found, consumers should do the following:
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| 
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| 1. If the value is null, do nothing.
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| 
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| 2. If the value is a string, try to require it.
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| 
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| 3. If the value is an object, try to require the `module` property. If successful, the `register` property (a function) should be called with the module passed as the first argument.
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| 
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| 4. If the value is an array, iterate over it, attempting step #2 or #3 until one of the attempts does not throw.
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| 
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| [require.extensions]: http://nodejs.org/api/globals.html#globals_require_extensions
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| 
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| [downloads-image]: http://img.shields.io/npm/dm/interpret.svg
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| [npm-url]: https://www.npmjs.com/package/interpret
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| [npm-image]: http://img.shields.io/npm/v/interpret.svg
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| 
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| [travis-url]: https://travis-ci.org/gulpjs/interpret
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| [travis-image]: http://img.shields.io/travis/gulpjs/interpret.svg?label=travis-ci
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| 
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| [appveyor-url]: https://ci.appveyor.com/project/gulpjs/interpret
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| [appveyor-image]: https://img.shields.io/appveyor/ci/gulpjs/interpret.svg?label=appveyor
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| 
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| [coveralls-url]: https://coveralls.io/r/gulpjs/interpret
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| [coveralls-image]: http://img.shields.io/coveralls/gulpjs/interpret/master.svg
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| 
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| [gitter-url]: https://gitter.im/gulpjs/gulp
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| [gitter-image]: https://badges.gitter.im/gulpjs/gulp.svg
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