initial

LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2014 Dominic Tarr
+
+Permission is hereby granted, free of charge, 
+to any person obtaining a copy of this software and 
+associated documentation files (the "Software"), to 
+deal in the Software without restriction, including 
+without limitation the rights to use, copy, modify, 
+merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom 
+the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice 
+shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,59 @@
+# excel-stream
+
+A stream that converts excel spreadsheets into JSON object arrays.
+
+# Example
+
+``` js
+var excel = require('excel-stream')
+var fs = require('fs')
+
+fs.createReadStream('accounts.xlsx')
+  .pipe(excel())
+  .on('data', console.log)
+
+```
+
+# Usage
+
+``` js
+npm install -g excel-stream
+excel-stream < accounts.xlsx > account.json
+```
+
+# formats
+
+each row becomes a javascript object, so input like
+
+``` csv
+foo, bar, baz
+  1,   2,   3
+  4,   5,   6
+```
+
+will become
+
+``` js
+[{
+  foo: 1,
+  bar: 2,
+  baz: 3
+}, {
+  foo: 4,
+  bar: 5,
+  baz: 6
+}]
+
+```
+
+# Don't Look Now
+
+So, excel isn't really a streamable format.
+But it's easy to work with streams because everything is a stream.
+This writes to a tmp file, then pipes it through the unfortunately named [j](https://npm.im/j)
+then into [csv-stream](https://npm.im/csv-stream)
+
+
+## License
+
+MIT

index.js

@@ -0,0 +1,41 @@
+#! /usr/bin/env node
+
+var fs       = require('fs')
+var path     = require('path')
+var spawn    = require('child_process').spawn
+
+var through  = require('through')
+var csv      = require('csv-stream')
+var osenv    = require('osenv')
+var duplexer = require('duplexer')
+
+module.exports = function () {
+
+  var read = through()
+
+  var filename = path.join(osenv.tmpdir(), '_'+Date.now())
+  var write = fs.createWriteStream(filename)
+    .on('close', function () {
+      var child = spawn(require.resolve('j/bin/j.njs'), [filename])
+      child.stdout.pipe(csv.createStream())
+        .pipe(through(function (data) {
+          for(var k in data)
+            if(!k) delete data[k]
+          this.queue(data)
+        }))
+        .pipe(read)
+    })
+
+  return duplexer(write, read)
+
+}
+
+
+if(!module.parent) {
+  var JSONStream = require('JSONStream')
+
+  process.stdin
+    .pipe(module.exports())
+    .pipe(JSONStream.stringify())
+    .pipe(process.stdout)
+}

package.json

@@ -0,0 +1,24 @@
+{
+  "name": "excel-stream",
+  "description": "",
+  "version": "0.0.0",
+  "homepage": "https://github.com/dominictarr/excel-stream",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/dominictarr/excel-stream.git"
+  },
+  "dependencies": {
+    "through": "~2.3.4",
+    "duplexer": "~0.1.1",
+    "JSONStream": "~0.8.2",
+    "csv-stream": "~0.1.3",
+    "osenv": "~0.0.3",
+    "j": "~0.2.20"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "test": "set -e; for t in test/*.js; do node $t; done"
+  },
+  "author": "Dominic Tarr <dominic.tarr@gmail.com> (http://dominictarr.com)",
+  "license": "MIT"
+}