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93 lines
2.8 KiB
Markdown
93 lines
2.8 KiB
Markdown
8 years ago
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# interpret
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> A dictionary of file extensions and associated module loaders.
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[](https://nodei.co/npm/interpret/)
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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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## API
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### extensions
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Map file types to modules which provide a [require.extensions] loader.
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```js
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{
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'.babel.js': {
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module: 'babel/register',
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register: function (module) {
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module({
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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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extensions: '.js'
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})
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}
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},
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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': ['coffee-script/register', 'coffee-script'],
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'.coffee.md': ['coffee-script/register', 'coffee-script'],
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'.csv': 'require-csv',
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'.eg': 'earlgrey/register',
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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 (module) {
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module({
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extensions: '.jsx'
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});
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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 (module) {
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module.install({
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extension: '.jsx',
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harmony: true
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});
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}
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}
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],
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'.litcoffee': ['coffee-script/register', 'coffee-script'],
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'.liticed': 'iced-coffee-script/register',
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'.ls': ['livescript', 'LiveScript'],
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'.node': null,
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'.toml': {
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module: 'toml-require',
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register: function (module) {
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module.install();
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}
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},
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'.ts': ['typescript-node/register', 'typescript-register', 'typescript-require'],
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'.tsx': ['typescript-node/register'],
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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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### jsVariants
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Same as above, but only include the extensions which are javascript variants.
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## How to use it
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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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1. If the value is null, do nothing.
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2. If the value is a string, try to require it.
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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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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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[require.extensions]: http://nodejs.org/api/globals.html#globals_require_extensions
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