visionmedia/css-stringify — pull request #14 by fgnass (2013-05-18 22:24:22+00:00)
Title: Add option to collect source-map data

When `{ map: [] }` is passed as second argument css-stringify will populate the given array with mapping data. For each node that has a `loc` property an entry like this is added:

```js
{
source: { line: 1, column: 1 },
generated: { line: 1, column: 1}
}
```