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https://github.com/raycmorgan/Mu

A Node.js Mustache template engine (and compiler)
https://github.com/raycmorgan/Mu

Last synced: 29 days ago
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A Node.js Mustache template engine (and compiler)

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# Mu - a fast, streaming Node.js Mustache engine



Warning: This version is not API compatible with 0.1.



## Install



I have had some issues with my npm auth and got it in a bit of a rut, so for

now you have to:



    npm install mu2



## Issues



Currently mu does not support changing the tag form ({{ }} to say <% %>).



## Usage



There are a few ways to use mu 0.5. Here is the simplest:

```javascript

var mu = require('mu2'); // notice the "2" which matches the npm repo, sorry..



mu.root = __dirname + '/templates'

mu.compileAndRender('index.html', {name: "john"})

  .on('data', function (data) {

    console.log(data.toString());

  });

```

Here is an example mixing it with the http module:

```javascript

var http = require('http')

  , util = require('util')

  , mu   = require('mu2');



mu.root = __dirname + '/templates';



  http.createServer(function (req, res) {



  var stream = mu.compileAndRender('index.html', {name: "john"});

  stream.pipe(res);



}).listen(8000);

```

Taking that last example here is a little trick to always compile the templates

in development mode (so the changes are immediately reflected).

```javascript

var http = require('http')

  , util = require('util')

  , mu   = require('mu2');



mu.root = __dirname + '/templates';



http.createServer(function (req, res) {



  if (process.env.NODE_ENV == 'DEVELOPMENT') {

    mu.clearCache();

  }



  var stream = mu.compileAndRender('index.html', {name: "john"});

  util.pump(stream, res);



}).listen(8000);

```

## API



    mu.root



      A path to lookup templates from. Defaults to the working directory.



    mu.compileAndRender(String templateName, Object view)



      Returns: Stream



      The first time this function is called with a specific template name, the

      template will be compiled and then rendered to the stream. Subsequent

      calls with the same template name will use a cached version of the compiled

      template to improve performance (a lot).



    mu.compile(filename, callback)



      Returns nil

      Callback (Error err, Any CompiledTemplate)



      This function is used to compile a template. Usually you will not use it

      directly but when doing wierd things, this might work for you. Does not

      use the internal cache when called multiple times, though it does add the

      compiled form to the cache.



    mu.compileText(String name, String template, Function callback)



      Returns nil

      Callback (err, CompiledTemplate)



      Similar to mu.compile except it taks in a name and the actual string of the

      template. Does not do disk io. Does not auto-compile partials either.



    mu.render(Mixed filenameOrCompiledTemplate, Object view)



      Returns Stream



      The brother of mu.compile. This function takes either a name of a template

      previously compiled (in the cache) or the result of the mu.compile step.



      This function is responsible for transforming the compiled template into the

      proper output give the input view data.



    mu.renderText(String template, Object view, Object partials)



      Returns Stream



      Like render, except takes a template as a string and an object for the partials.

      This is not a very performant way to use mu, so only use this for dev/testing.



    mu.clearCache(String templateNameOrNull)



      Clears the cache for a specific template. If the name is omitted, clears all cache.