done purchases remove, ocr scan, read image

2019-01-28 01:34:06 +01:00
parent d9c3d422d7
commit 93bbf9c2cb
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--- a/express-server/node_modules/dicer/README.md
+++ b/express-server/node_modules/dicer/README.md
@ -0,0 +1,122 @@
+
+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/) -- v0.8.0 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 = new Buffer('<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.