Last Mate

A rendering engine for tokens generated with TextMate-style grammars. Last Mate is the missing counterpart to atom/first-mate's lexer.

Installing

npm install last-mate

Using

RendererRegistry

To render tokens generated by first-mate use the following code:

var RendererRegistry = require('last-mate').RendererRegistry;
var registry = new RendererRegistry();
var renderer = registry.loadRendererSync('./spec/fixtures/html.json');
var html = renderer.renderLines([
  [
    {
      "value": "var",
      "scopes": [
        "source.js",
        "storage.modifier.js"
      ]
    },
    {
      "value": " offset ",
      "scopes": [
        "source.js"
      ]
    },
    {
      "value": "=",
      "scopes": [
        "source.js",
        "keyword.operator.js"
      ]
    },
    {
      "value": " ",
      "scopes": [
        "source.js"
      ]
    },
    {
      "value": "3",
      "scopes": [
        "source.js",
        "constant.numeric.js"
      ]
    },
    {
      "value": ";",
      "scopes": [
        "source.js",
        "punctuation.terminator.statement.js"
      ]
    }
  ]
]);
console.log(html);

Outputs

<pre class="editor editor-colors">
  <div class="line">
    <span class="source js">
      <span class="storage modifier js"><span>var</span></span>
      <span>&nbsp;offset&nbsp;</span>
      <span class="keyword operator js"><span>=</span></span>
      <span>&nbsp;</span>
      <span class="constant numeric js"><span>3</span></span>
      <span class="punctuation terminator statement js"><span>;</span></span>
    </span>
  </div>
</pre>

loadRenderer(rendererPath, callback)

Asynchronously load a renderer and add it to the registry.

rendererPath - A string path to the renderer file.

callback - A function to call after the renderer is read and added to the registry. The callback receives (error, renderer) arguments.

loadRendererSync(rendererPath)

Synchronously load a renderer and add it to the registry.

rendererPath - A string path to the renderer file.

Returns a Renderer instance.

Renderer

renderLines(lineTokens, tagStack=new TagStack())

Render all lines in the given line token array.

lineTokens - An array of token arrays for each line. tagStack - A TagStack object for holding the state of the renderer.

tagStack - An array of Rule objects that was returned from a previous call to this method.

Returns a string representation of the line token array rendered with the body tag rules defined in this object's markup format.

renderLine(tokens, tagStack=new TagStack())

tokens - An array of tokens to render. tagStack - A TagStack object for holding the state of the renderer.

Returns a string representation of the token array rendered with the line tag rules defined in this object's markup format.

renderTokens(tokens, tagStack=new TagStack())

tokens - An array of tokens to render. tagStack - A TagStack object for holding the state of the renderer. This stack will be drained, rendering all closing tags on it, before the function exits.

Returns a string representation of the token array rendered with the scope tag rules defined in this object's markup format.

renderValue(value, tagStack=new TagStack())

tokens - An array of tokens to render. tagStack - A TagStack object for holding the state of the renderer.

Returns a string representation of the token value rendered with the value tag rules defined in this object's markup format.

Developing

• Clone the repository
• Run npm install
• Run npm test to run the specs
• Run npm run benchmark to benchmark fully rendering jQuery 2.0.3 and the CSS for Twitter Bootstrap 3.1.1