mqtt stuff added

node_modules/split2/index.js

@@ -0,0 +1,112 @@
+/*
+Copyright (c) 2014-2016, Matteo Collina <hello@matteocollina.com>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+'use strict'
+
+var through = require('through2')
+var StringDecoder = require('string_decoder').StringDecoder
+
+function transform (chunk, enc, cb) {
+  this._last += this._decoder.write(chunk)
+  if (this._last.length > this.maxLength) {
+    return cb(new Error('maximum buffer reached'))
+  }
+
+  var list = this._last.split(this.matcher)
+
+  this._last = list.pop()
+
+  for (var i = 0; i < list.length; i++) {
+    push(this, this.mapper(list[i]))
+  }
+
+  cb()
+}
+
+function flush (cb) {
+  // forward any gibberish left in there
+  this._last += this._decoder.end()
+
+  if (this._last) {
+    push(this, this.mapper(this._last))
+  }
+
+  cb()
+}
+
+function push (self, val) {
+  if (val !== undefined) {
+    self.push(val)
+  }
+}
+
+function noop (incoming) {
+  return incoming
+}
+
+function split (matcher, mapper, options) {
+  // Set defaults for any arguments not supplied.
+  matcher = matcher || /\r?\n/
+  mapper = mapper || noop
+  options = options || {}
+
+  // Test arguments explicitly.
+  switch (arguments.length) {
+    case 1:
+      // If mapper is only argument.
+      if (typeof matcher === 'function') {
+        mapper = matcher
+        matcher = /\r?\n/
+      // If options is only argument.
+      } else if (typeof matcher === 'object' && !(matcher instanceof RegExp)) {
+        options = matcher
+        matcher = /\r?\n/
+      }
+      break
+
+    case 2:
+      // If mapper and options are arguments.
+      if (typeof matcher === 'function') {
+        options = mapper
+        mapper = matcher
+        matcher = /\r?\n/
+      // If matcher and options are arguments.
+      } else if (typeof mapper === 'object') {
+        options = mapper
+        mapper = noop
+      }
+  }
+
+  var stream = through(options, transform, flush)
+
+  // this stream is in objectMode only in the readable part
+  stream._readableState.objectMode = true
+
+  // objectMode default hwm is 16 and not 16384
+  if (stream._readableState.highWaterMark && !options.highWaterMark) {
+    stream._readableState.highWaterMark = 16
+  }
+
+  stream._last = ''
+  stream._decoder = new StringDecoder('utf8')
+  stream.matcher = matcher
+  stream.mapper = mapper
+  stream.maxLength = options.maxLength
+
+  return stream
+}
+
+module.exports = split