A suite to track Project Diva score statistics and ratings / D4DJ event data.
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projectdivar/server/node_modules/dicer/README.md

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Description
===========
A very fast streaming multipart parser for node.js.
Benchmarks can be found [here](https://github.com/mscdex/dicer/wiki/Benchmarks).
Requirements
============
* [node.js](http://nodejs.org/) -- v4.5.0 or newer
Install
============
npm install dicer
Examples
========
* Parse an HTTP form upload
```javascript
var inspect = require('util').inspect,
http = require('http');
var Dicer = require('dicer');
// quick and dirty way to parse multipart boundary
var RE_BOUNDARY = /^multipart\/.+?(?:; boundary=(?:(?:"(.+)")|(?:([^\s]+))))$/i,
HTML = Buffer.from('<html><head></head><body>\
<form method="POST" enctype="multipart/form-data">\
<input type="text" name="textfield"><br />\
<input type="file" name="filefield"><br />\
<input type="submit">\
</form>\
</body></html>'),
PORT = 8080;
http.createServer(function(req, res) {
var m;
if (req.method === 'POST'
&& req.headers['content-type']
&& (m = RE_BOUNDARY.exec(req.headers['content-type']))) {
var d = new Dicer({ boundary: m[1] || m[2] });
d.on('part', function(p) {
console.log('New part!');
p.on('header', function(header) {
for (var h in header) {
console.log('Part header: k: ' + inspect(h)
+ ', v: ' + inspect(header[h]));
}
});
p.on('data', function(data) {
console.log('Part data: ' + inspect(data.toString()));
});
p.on('end', function() {
console.log('End of part\n');
});
});
d.on('finish', function() {
console.log('End of parts');
res.writeHead(200);
res.end('Form submission successful!');
});
req.pipe(d);
} else if (req.method === 'GET' && req.url === '/') {
res.writeHead(200);
res.end(HTML);
} else {
res.writeHead(404);
res.end();
}
}).listen(PORT, function() {
console.log('Listening for requests on port ' + PORT);
});
```
API
===
_Dicer_ is a _WritableStream_
Dicer (special) events
----------------------
* **finish**() - Emitted when all parts have been parsed and the Dicer instance has been ended.
* **part**(< _PartStream_ >stream) - Emitted when a new part has been found.
* **preamble**(< _PartStream_ >stream) - Emitted for preamble if you should happen to need it (can usually be ignored).
* **trailer**(< _Buffer_ >data) - Emitted when trailing data was found after the terminating boundary (as with the preamble, this can usually be ignored too).
Dicer methods
-------------
* **(constructor)**(< _object_ >config) - Creates and returns a new Dicer instance with the following valid `config` settings:
* **boundary** - _string_ - This is the boundary used to detect the beginning of a new part.
* **headerFirst** - _boolean_ - If true, preamble header parsing will be performed first.
* **maxHeaderPairs** - _integer_ - The maximum number of header key=>value pairs to parse **Default:** 2000 (same as node's http).
* **setBoundary**(< _string_ >boundary) - _(void)_ - Sets the boundary to use for parsing and performs some initialization needed for parsing. You should only need to use this if you set `headerFirst` to true in the constructor and are parsing the boundary from the preamble header.
_PartStream_ is a _ReadableStream_
PartStream (special) events
---------------------------
* **header**(< _object_ >header) - An object containing the header for this particular part. Each property value is an _array_ of one or more string values.