source-mapping-url

source-mapping-url
====

Extracts the sourceMappingUrl from a node.js read stream.

Pass it any utf8 stream, and it gives you the source-map url in that stream. If no source-map is found, it returns false.

Works for both the @ and # formats. Only tested against JS files, but no reason it can't work for CSS files too.

Example
---

``javascript
var smu = require("source-mapping-url"),
zlib = require("zlib"),
http = require("http");

var stream = http.get("http://code.jquery.com/jquery.min.js")
.pipe(zlib.createGunzip());

smu(stream, function(err, sourceMapUrl) {
// sourceMapUrl is either false (if there's no source map declaration)
// or is the value extracted from the file.
// eg. jquery.min.map
});
`


Installation
---

`
npm install source-mapping-url
`

To run tests, cd to the source-mapping-url directory, and type in `npm test``.

License
---

MIT