Removed files that should not have been included in git

1 files changed, 0 insertions, 951 deletions

diff --git a/node_modules/readable-stream/lib/_stream_readable.js b/node_modules/readable-stream/lib/_stream_readable.js
deleted file mode 100644
index 19ab358..0000000
--- a/node_modules/readable-stream/lib/_stream_readable.js
+++ /dev/null
@@ -1,951 +0,0 @@
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// 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.
-
-module.exports = Readable;
-
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
-
-
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
-
-Readable.ReadableState = ReadableState;
-
-var EE = require('events').EventEmitter;
-
-/*<replacement>*/
-if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
-  return emitter.listeners(type).length;
-};
-/*</replacement>*/
-
-var Stream = require('stream');
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-var StringDecoder;
-
-
-/*<replacement>*/
-var debug = require('util');
-if (debug && debug.debuglog) {
-  debug = debug.debuglog('stream');
-} else {
-  debug = function () {};
-}
-/*</replacement>*/
-
-
-util.inherits(Readable, Stream);
-
-function ReadableState(options, stream) {
-  var Duplex = require('./_stream_duplex');
-
-  options = options || {};
-
-  // the point at which it stops calling _read() to fill the buffer
-  // Note: 0 is a valid value, means "don't call _read preemptively ever"
-  var hwm = options.highWaterMark;
-  var defaultHwm = options.objectMode ? 16 : 16 * 1024;
-  this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
-
-  // cast to ints.
-  this.highWaterMark = ~~this.highWaterMark;
-
-  this.buffer = [];
-  this.length = 0;
-  this.pipes = null;
-  this.pipesCount = 0;
-  this.flowing = null;
-  this.ended = false;
-  this.endEmitted = false;
-  this.reading = false;
-
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
-  this.sync = true;
-
-  // whenever we return null, then we set a flag to say
-  // that we're awaiting a 'readable' event emission.
-  this.needReadable = false;
-  this.emittedReadable = false;
-  this.readableListening = false;
-
-
-  // object stream flag. Used to make read(n) ignore n and to
-  // make all the buffer merging and length checks go away
-  this.objectMode = !!options.objectMode;
-
-  if (stream instanceof Duplex)
-    this.objectMode = this.objectMode || !!options.readableObjectMode;
-
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-  // when piping, we only care about 'readable' events that happen
-  // after read()ing all the bytes and not getting any pushback.
-  this.ranOut = false;
-
-  // the number of writers that are awaiting a drain event in .pipe()s
-  this.awaitDrain = 0;
-
-  // if true, a maybeReadMore has been scheduled
-  this.readingMore = false;
-
-  this.decoder = null;
-  this.encoding = null;
-  if (options.encoding) {
-    if (!StringDecoder)
-      StringDecoder = require('string_decoder/').StringDecoder;
-    this.decoder = new StringDecoder(options.encoding);
-    this.encoding = options.encoding;
-  }
-}
-
-function Readable(options) {
-  var Duplex = require('./_stream_duplex');
-
-  if (!(this instanceof Readable))
-    return new Readable(options);
-
-  this._readableState = new ReadableState(options, this);
-
-  // legacy
-  this.readable = true;
-
-  Stream.call(this);
-}
-
-// Manually shove something into the read() buffer.
-// This returns true if the highWaterMark has not been hit yet,
-// similar to how Writable.write() returns true if you should
-// write() some more.
-Readable.prototype.push = function(chunk, encoding) {
-  var state = this._readableState;
-
-  if (util.isString(chunk) && !state.objectMode) {
-    encoding = encoding || state.defaultEncoding;
-    if (encoding !== state.encoding) {
-      chunk = new Buffer(chunk, encoding);
-      encoding = '';
-    }
-  }
-
-  return readableAddChunk(this, state, chunk, encoding, false);
-};
-
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function(chunk) {
-  var state = this._readableState;
-  return readableAddChunk(this, state, chunk, '', true);
-};
-
-function readableAddChunk(stream, state, chunk, encoding, addToFront) {
-  var er = chunkInvalid(state, chunk);
-  if (er) {
-    stream.emit('error', er);
-  } else if (util.isNullOrUndefined(chunk)) {
-    state.reading = false;
-    if (!state.ended)
-      onEofChunk(stream, state);
-  } else if (state.objectMode || chunk && chunk.length > 0) {
-    if (state.ended && !addToFront) {
-      var e = new Error('stream.push() after EOF');
-      stream.emit('error', e);
-    } else if (state.endEmitted && addToFront) {
-      var e = new Error('stream.unshift() after end event');
-      stream.emit('error', e);
-    } else {
-      if (state.decoder && !addToFront && !encoding)
-        chunk = state.decoder.write(chunk);
-
-      if (!addToFront)
-        state.reading = false;
-
-      // if we want the data now, just emit it.
-      if (state.flowing && state.length === 0 && !state.sync) {
-        stream.emit('data', chunk);
-        stream.read(0);
-      } else {
-        // update the buffer info.
-        state.length += state.objectMode ? 1 : chunk.length;
-        if (addToFront)
-          state.buffer.unshift(chunk);
-        else
-          state.buffer.push(chunk);
-
-        if (state.needReadable)
-          emitReadable(stream);
-      }
-
-      maybeReadMore(stream, state);
-    }
-  } else if (!addToFront) {
-    state.reading = false;
-  }
-
-  return needMoreData(state);
-}
-
-
-
-// if it's past the high water mark, we can push in some more.
-// Also, if we have no data yet, we can stand some
-// more bytes.  This is to work around cases where hwm=0,
-// such as the repl.  Also, if the push() triggered a
-// readable event, and the user called read(largeNumber) such that
-// needReadable was set, then we ought to push more, so that another
-// 'readable' event will be triggered.
-function needMoreData(state) {
-  return !state.ended &&
-         (state.needReadable ||
-          state.length < state.highWaterMark ||
-          state.length === 0);
-}
-
-// backwards compatibility.
-Readable.prototype.setEncoding = function(enc) {
-  if (!StringDecoder)
-    StringDecoder = require('string_decoder/').StringDecoder;
-  this._readableState.decoder = new StringDecoder(enc);
-  this._readableState.encoding = enc;
-  return this;
-};
-
-// Don't raise the hwm > 128MB
-var MAX_HWM = 0x800000;
-function roundUpToNextPowerOf2(n) {
-  if (n >= MAX_HWM) {
-    n = MAX_HWM;
-  } else {
-    // Get the next highest power of 2
-    n--;
-    for (var p = 1; p < 32; p <<= 1) n |= n >> p;
-    n++;
-  }
-  return n;
-}
-
-function howMuchToRead(n, state) {
-  if (state.length === 0 && state.ended)
-    return 0;
-
-  if (state.objectMode)
-    return n === 0 ? 0 : 1;
-
-  if (isNaN(n) || util.isNull(n)) {
-    // only flow one buffer at a time
-    if (state.flowing && state.buffer.length)
-      return state.buffer[0].length;
-    else
-      return state.length;
-  }
-
-  if (n <= 0)
-    return 0;
-
-  // If we're asking for more than the target buffer level,
-  // then raise the water mark.  Bump up to the next highest
-  // power of 2, to prevent increasing it excessively in tiny
-  // amounts.
-  if (n > state.highWaterMark)
-    state.highWaterMark = roundUpToNextPowerOf2(n);
-
-  // don't have that much.  return null, unless we've ended.
-  if (n > state.length) {
-    if (!state.ended) {
-      state.needReadable = true;
-      return 0;
-    } else
-      return state.length;
-  }
-
-  return n;
-}
-
-// you can override either this method, or the async _read(n) below.
-Readable.prototype.read = function(n) {
-  debug('read', n);
-  var state = this._readableState;
-  var nOrig = n;
-
-  if (!util.isNumber(n) || n > 0)
-    state.emittedReadable = false;
-
-  // if we're doing read(0) to trigger a readable event, but we
-  // already have a bunch of data in the buffer, then just trigger
-  // the 'readable' event and move on.
-  if (n === 0 &&
-      state.needReadable &&
-      (state.length >= state.highWaterMark || state.ended)) {
-    debug('read: emitReadable', state.length, state.ended);
-    if (state.length === 0 && state.ended)
-      endReadable(this);
-    else
-      emitReadable(this);
-    return null;
-  }
-
-  n = howMuchToRead(n, state);
-
-  // if we've ended, and we're now clear, then finish it up.
-  if (n === 0 && state.ended) {
-    if (state.length === 0)
-      endReadable(this);
-    return null;
-  }
-
-  // All the actual chunk generation logic needs to be
-  // *below* the call to _read.  The reason is that in certain
-  // synthetic stream cases, such as passthrough streams, _read
-  // may be a completely synchronous operation which may change
-  // the state of the read buffer, providing enough data when
-  // before there was *not* enough.
-  //
-  // So, the steps are:
-  // 1. Figure out what the state of things will be after we do
-  // a read from the buffer.
-  //
-  // 2. If that resulting state will trigger a _read, then call _read.
-  // Note that this may be asynchronous, or synchronous.  Yes, it is
-  // deeply ugly to write APIs this way, but that still doesn't mean
-  // that the Readable class should behave improperly, as streams are
-  // designed to be sync/async agnostic.
-  // Take note if the _read call is sync or async (ie, if the read call
-  // has returned yet), so that we know whether or not it's safe to emit
-  // 'readable' etc.
-  //
-  // 3. Actually pull the requested chunks out of the buffer and return.
-
-  // if we need a readable event, then we need to do some reading.
-  var doRead = state.needReadable;
-  debug('need readable', doRead);
-
-  // if we currently have less than the highWaterMark, then also read some
-  if (state.length === 0 || state.length - n < state.highWaterMark) {
-    doRead = true;
-    debug('length less than watermark', doRead);
-  }
-
-  // however, if we've ended, then there's no point, and if we're already
-  // reading, then it's unnecessary.
-  if (state.ended || state.reading) {
-    doRead = false;
-    debug('reading or ended', doRead);
-  }
-
-  if (doRead) {
-    debug('do read');
-    state.reading = true;
-    state.sync = true;
-    // if the length is currently zero, then we *need* a readable event.
-    if (state.length === 0)
-      state.needReadable = true;
-    // call internal read method
-    this._read(state.highWaterMark);
-    state.sync = false;
-  }
-
-  // If _read pushed data synchronously, then `reading` will be false,
-  // and we need to re-evaluate how much data we can return to the user.
-  if (doRead && !state.reading)
-    n = howMuchToRead(nOrig, state);
-
-  var ret;
-  if (n > 0)
-    ret = fromList(n, state);
-  else
-    ret = null;
-
-  if (util.isNull(ret)) {
-    state.needReadable = true;
-    n = 0;
-  }
-
-  state.length -= n;
-
-  // If we have nothing in the buffer, then we want to know
-  // as soon as we *do* get something into the buffer.
-  if (state.length === 0 && !state.ended)
-    state.needReadable = true;
-
-  // If we tried to read() past the EOF, then emit end on the next tick.
-  if (nOrig !== n && state.ended && state.length === 0)
-    endReadable(this);
-
-  if (!util.isNull(ret))
-    this.emit('data', ret);
-
-  return ret;
-};
-
-function chunkInvalid(state, chunk) {
-  var er = null;
-  if (!util.isBuffer(chunk) &&
-      !util.isString(chunk) &&
-      !util.isNullOrUndefined(chunk) &&
-      !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
-  }
-  return er;
-}
-
-
-function onEofChunk(stream, state) {
-  if (state.decoder && !state.ended) {
-    var chunk = state.decoder.end();
-    if (chunk && chunk.length) {
-      state.buffer.push(chunk);
-      state.length += state.objectMode ? 1 : chunk.length;
-    }
-  }
-  state.ended = true;
-
-  // emit 'readable' now to make sure it gets picked up.
-  emitReadable(stream);
-}
-
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow.  This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
-  var state = stream._readableState;
-  state.needReadable = false;
-  if (!state.emittedReadable) {
-    debug('emitReadable', state.flowing);
-    state.emittedReadable = true;
-    if (state.sync)
-      process.nextTick(function() {
-        emitReadable_(stream);
-      });
-    else
-      emitReadable_(stream);
-  }
-}
-
-function emitReadable_(stream) {
-  debug('emit readable');
-  stream.emit('readable');
-  flow(stream);
-}
-
-
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data.  that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
-  if (!state.readingMore) {
-    state.readingMore = true;
-    process.nextTick(function() {
-      maybeReadMore_(stream, state);
-    });
-  }
-}
-
-function maybeReadMore_(stream, state) {
-  var len = state.length;
-  while (!state.reading && !state.flowing && !state.ended &&
-         state.length < state.highWaterMark) {
-    debug('maybeReadMore read 0');
-    stream.read(0);
-    if (len === state.length)
-      // didn't get any data, stop spinning.
-      break;
-    else
-      len = state.length;
-  }
-  state.readingMore = false;
-}
-
-// abstract method.  to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function(n) {
-  this.emit('error', new Error('not implemented'));
-};
-
-Readable.prototype.pipe = function(dest, pipeOpts) {
-  var src = this;
-  var state = this._readableState;
-
-  switch (state.pipesCount) {
-    case 0:
-      state.pipes = dest;
-      break;
-    case 1:
-      state.pipes = [state.pipes, dest];
-      break;
-    default:
-      state.pipes.push(dest);
-      break;
-  }
-  state.pipesCount += 1;
-  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
-
-  var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
-              dest !== process.stdout &&
-              dest !== process.stderr;
-
-  var endFn = doEnd ? onend : cleanup;
-  if (state.endEmitted)
-    process.nextTick(endFn);
-  else
-    src.once('end', endFn);
-
-  dest.on('unpipe', onunpipe);
-  function onunpipe(readable) {
-    debug('onunpipe');
-    if (readable === src) {
-      cleanup();
-    }
-  }
-
-  function onend() {
-    debug('onend');
-    dest.end();
-  }
-
-  // when the dest drains, it reduces the awaitDrain counter
-  // on the source.  This would be more elegant with a .once()
-  // handler in flow(), but adding and removing repeatedly is
-  // too slow.
-  var ondrain = pipeOnDrain(src);
-  dest.on('drain', ondrain);
-
-  function cleanup() {
-    debug('cleanup');
-    // cleanup event handlers once the pipe is broken
-    dest.removeListener('close', onclose);
-    dest.removeListener('finish', onfinish);
-    dest.removeListener('drain', ondrain);
-    dest.removeListener('error', onerror);
-    dest.removeListener('unpipe', onunpipe);
-    src.removeListener('end', onend);
-    src.removeListener('end', cleanup);
-    src.removeListener('data', ondata);
-
-    // if the reader is waiting for a drain event from this
-    // specific writer, then it would cause it to never start
-    // flowing again.
-    // So, if this is awaiting a drain, then we just call it now.
-    // If we don't know, then assume that we are waiting for one.
-    if (state.awaitDrain &&
-        (!dest._writableState || dest._writableState.needDrain))
-      ondrain();
-  }
-
-  src.on('data', ondata);
-  function ondata(chunk) {
-    debug('ondata');
-    var ret = dest.write(chunk);
-    if (false === ret) {
-      debug('false write response, pause',
-            src._readableState.awaitDrain);
-      src._readableState.awaitDrain++;
-      src.pause();
-    }
-  }
-
-  // if the dest has an error, then stop piping into it.
-  // however, don't suppress the throwing behavior for this.
-  function onerror(er) {
-    debug('onerror', er);
-    unpipe();
-    dest.removeListener('error', onerror);
-    if (EE.listenerCount(dest, 'error') === 0)
-      dest.emit('error', er);
-  }
-  // This is a brutally ugly hack to make sure that our error handler
-  // is attached before any userland ones.  NEVER DO THIS.
-  if (!dest._events || !dest._events.error)
-    dest.on('error', onerror);
-  else if (isArray(dest._events.error))
-    dest._events.error.unshift(onerror);
-  else
-    dest._events.error = [onerror, dest._events.error];
-
-
-
-  // Both close and finish should trigger unpipe, but only once.
-  function onclose() {
-    dest.removeListener('finish', onfinish);
-    unpipe();
-  }
-  dest.once('close', onclose);
-  function onfinish() {
-    debug('onfinish');
-    dest.removeListener('close', onclose);
-    unpipe();
-  }
-  dest.once('finish', onfinish);
-
-  function unpipe() {
-    debug('unpipe');
-    src.unpipe(dest);
-  }
-
-  // tell the dest that it's being piped to
-  dest.emit('pipe', src);
-
-  // start the flow if it hasn't been started already.
-  if (!state.flowing) {
-    debug('pipe resume');
-    src.resume();
-  }
-
-  return dest;
-};
-
-function pipeOnDrain(src) {
-  return function() {
-    var state = src._readableState;
-    debug('pipeOnDrain', state.awaitDrain);
-    if (state.awaitDrain)
-      state.awaitDrain--;
-    if (state.awaitDrain === 0 && EE.listenerCount(src, 'data')) {
-      state.flowing = true;
-      flow(src);
-    }
-  };
-}
-
-
-Readable.prototype.unpipe = function(dest) {
-  var state = this._readableState;
-
-  // if we're not piping anywhere, then do nothing.
-  if (state.pipesCount === 0)
-    return this;
-
-  // just one destination.  most common case.
-  if (state.pipesCount === 1) {
-    // passed in one, but it's not the right one.
-    if (dest && dest !== state.pipes)
-      return this;
-
-    if (!dest)
-      dest = state.pipes;
-
-    // got a match.
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-    if (dest)
-      dest.emit('unpipe', this);
-    return this;
-  }
-
-  // slow case. multiple pipe destinations.
-
-  if (!dest) {
-    // remove all.
-    var dests = state.pipes;
-    var len = state.pipesCount;
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-
-    for (var i = 0; i < len; i++)
-      dests[i].emit('unpipe', this);
-    return this;
-  }
-
-  // try to find the right one.
-  var i = indexOf(state.pipes, dest);
-  if (i === -1)
-    return this;
-
-  state.pipes.splice(i, 1);
-  state.pipesCount -= 1;
-  if (state.pipesCount === 1)
-    state.pipes = state.pipes[0];
-
-  dest.emit('unpipe', this);
-
-  return this;
-};
-
-// set up data events if they are asked for
-// Ensure readable listeners eventually get something
-Readable.prototype.on = function(ev, fn) {
-  var res = Stream.prototype.on.call(this, ev, fn);
-
-  // If listening to data, and it has not explicitly been paused,
-  // then call resume to start the flow of data on the next tick.
-  if (ev === 'data' && false !== this._readableState.flowing) {
-    this.resume();
-  }
-
-  if (ev === 'readable' && this.readable) {
-    var state = this._readableState;
-    if (!state.readableListening) {
-      state.readableListening = true;
-      state.emittedReadable = false;
-      state.needReadable = true;
-      if (!state.reading) {
-        var self = this;
-        process.nextTick(function() {
-          debug('readable nexttick read 0');
-          self.read(0);
-        });
-      } else if (state.length) {
-        emitReadable(this, state);
-      }
-    }
-  }
-
-  return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
-
-// pause() and resume() are remnants of the legacy readable stream API
-// If the user uses them, then switch into old mode.
-Readable.prototype.resume = function() {
-  var state = this._readableState;
-  if (!state.flowing) {
-    debug('resume');
-    state.flowing = true;
-    if (!state.reading) {
-      debug('resume read 0');
-      this.read(0);
-    }
-    resume(this, state);
-  }
-  return this;
-};
-
-function resume(stream, state) {
-  if (!state.resumeScheduled) {
-    state.resumeScheduled = true;
-    process.nextTick(function() {
-      resume_(stream, state);
-    });
-  }
-}
-
-function resume_(stream, state) {
-  state.resumeScheduled = false;
-  stream.emit('resume');
-  flow(stream);
-  if (state.flowing && !state.reading)
-    stream.read(0);
-}
-
-Readable.prototype.pause = function() {
-  debug('call pause flowing=%j', this._readableState.flowing);
-  if (false !== this._readableState.flowing) {
-    debug('pause');
-    this._readableState.flowing = false;
-    this.emit('pause');
-  }
-  return this;
-};
-
-function flow(stream) {
-  var state = stream._readableState;
-  debug('flow', state.flowing);
-  if (state.flowing) {
-    do {
-      var chunk = stream.read();
-    } while (null !== chunk && state.flowing);
-  }
-}
-
-// wrap an old-style stream as the async data source.
-// This is *not* part of the readable stream interface.
-// It is an ugly unfortunate mess of history.
-Readable.prototype.wrap = function(stream) {
-  var state = this._readableState;
-  var paused = false;
-
-  var self = this;
-  stream.on('end', function() {
-    debug('wrapped end');
-    if (state.decoder && !state.ended) {
-      var chunk = state.decoder.end();
-      if (chunk && chunk.length)
-        self.push(chunk);
-    }
-
-    self.push(null);
-  });
-
-  stream.on('data', function(chunk) {
-    debug('wrapped data');
-    if (state.decoder)
-      chunk = state.decoder.write(chunk);
-    if (!chunk || !state.objectMode && !chunk.length)
-      return;
-
-    var ret = self.push(chunk);
-    if (!ret) {
-      paused = true;
-      stream.pause();
-    }
-  });
-
-  // proxy all the other methods.
-  // important when wrapping filters and duplexes.
-  for (var i in stream) {
-    if (util.isFunction(stream[i]) && util.isUndefined(this[i])) {
-      this[i] = function(method) { return function() {
-        return stream[method].apply(stream, arguments);
-      }}(i);
-    }
-  }
-
-  // proxy certain important events.
-  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
-  forEach(events, function(ev) {
-    stream.on(ev, self.emit.bind(self, ev));
-  });
-
-  // when we try to consume some more bytes, simply unpause the
-  // underlying stream.
-  self._read = function(n) {
-    debug('wrapped _read', n);
-    if (paused) {
-      paused = false;
-      stream.resume();
-    }
-  };
-
-  return self;
-};
-
-
-
-// exposed for testing purposes only.
-Readable._fromList = fromList;
-
-// Pluck off n bytes from an array of buffers.
-// Length is the combined lengths of all the buffers in the list.
-function fromList(n, state) {
-  var list = state.buffer;
-  var length = state.length;
-  var stringMode = !!state.decoder;
-  var objectMode = !!state.objectMode;
-  var ret;
-
-  // nothing in the list, definitely empty.
-  if (list.length === 0)
-    return null;
-
-  if (length === 0)
-    ret = null;
-  else if (objectMode)
-    ret = list.shift();
-  else if (!n || n >= length) {
-    // read it all, truncate the array.
-    if (stringMode)
-      ret = list.join('');
-    else
-      ret = Buffer.concat(list, length);
-    list.length = 0;
-  } else {
-    // read just some of it.
-    if (n < list[0].length) {
-      // just take a part of the first list item.
-      // slice is the same for buffers and strings.
-      var buf = list[0];
-      ret = buf.slice(0, n);
-      list[0] = buf.slice(n);
-    } else if (n === list[0].length) {
-      // first list is a perfect match
-      ret = list.shift();
-    } else {
-      // complex case.
-      // we have enough to cover it, but it spans past the first buffer.
-      if (stringMode)
-        ret = '';
-      else
-        ret = new Buffer(n);
-
-      var c = 0;
-      for (var i = 0, l = list.length; i < l && c < n; i++) {
-        var buf = list[0];
-        var cpy = Math.min(n - c, buf.length);
-
-        if (stringMode)
-          ret += buf.slice(0, cpy);
-        else
-          buf.copy(ret, c, 0, cpy);
-
-        if (cpy < buf.length)
-          list[0] = buf.slice(cpy);
-        else
-          list.shift();
-
-        c += cpy;
-      }
-    }
-  }
-
-  return ret;
-}
-
-function endReadable(stream) {
-  var state = stream._readableState;
-
-  // If we get here before consuming all the bytes, then that is a
-  // bug in node.  Should never happen.
-  if (state.length > 0)
-    throw new Error('endReadable called on non-empty stream');
-
-  if (!state.endEmitted) {
-    state.ended = true;
-    process.nextTick(function() {
-      // Check that we didn't get one last unshift.
-      if (!state.endEmitted && state.length === 0) {
-        state.endEmitted = true;
-        stream.readable = false;
-        stream.emit('end');
-      }
-    });
-  }
-}
-
-function forEach (xs, f) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    f(xs[i], i);
-  }
-}
-
-function indexOf (xs, x) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    if (xs[i] === x) return i;
-  }
-  return -1;
-}