Adding integrated tile server

[simantics/district.git] / org.simantics.maps.server / node / node-v4.8.0-win-x64 / node_modules / npm / node_modules / request / node_modules / stringstream / stringstream.js

diff --git a/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/stringstream/stringstream.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/stringstream/stringstream.js
new file mode 100644 (file)
index 0000000..4ece127
--- /dev/null
+++ b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/stringstream/stringstream.js
@@ -0,0 +1,102 @@
+var util = require('util')
+var Stream = require('stream')
+var StringDecoder = require('string_decoder').StringDecoder
+
+module.exports = StringStream
+module.exports.AlignedStringDecoder = AlignedStringDecoder
+
+function StringStream(from, to) {
+  if (!(this instanceof StringStream)) return new StringStream(from, to)
+
+  Stream.call(this)
+
+  if (from == null) from = 'utf8'
+
+  this.readable = this.writable = true
+  this.paused = false
+  this.toEncoding = (to == null ? from : to)
+  this.fromEncoding = (to == null ? '' : from)
+  this.decoder = new AlignedStringDecoder(this.toEncoding)
+}
+util.inherits(StringStream, Stream)
+
+StringStream.prototype.write = function(data) {
+  if (!this.writable) {
+    var err = new Error('stream not writable')
+    err.code = 'EPIPE'
+    this.emit('error', err)
+    return false
+  }
+  if (this.fromEncoding) {
+    if (Buffer.isBuffer(data)) data = data.toString()
+    data = new Buffer(data, this.fromEncoding)
+  }
+  var string = this.decoder.write(data)
+  if (string.length) this.emit('data', string)
+  return !this.paused
+}
+
+StringStream.prototype.flush = function() {
+  if (this.decoder.flush) {
+    var string = this.decoder.flush()
+    if (string.length) this.emit('data', string)
+  }
+}
+
+StringStream.prototype.end = function() {
+  if (!this.writable && !this.readable) return
+  this.flush()
+  this.emit('end')
+  this.writable = this.readable = false
+  this.destroy()
+}
+
+StringStream.prototype.destroy = function() {
+  this.decoder = null
+  this.writable = this.readable = false
+  this.emit('close')
+}
+
+StringStream.prototype.pause = function() {
+  this.paused = true
+}
+
+StringStream.prototype.resume = function () {
+  if (this.paused) this.emit('drain')
+  this.paused = false
+}
+
+function AlignedStringDecoder(encoding) {
+  StringDecoder.call(this, encoding)
+
+  switch (this.encoding) {
+    case 'base64':
+      this.write = alignedWrite
+      this.alignedBuffer = new Buffer(3)
+      this.alignedBytes = 0
+      break
+  }
+}
+util.inherits(AlignedStringDecoder, StringDecoder)
+
+AlignedStringDecoder.prototype.flush = function() {
+  if (!this.alignedBuffer || !this.alignedBytes) return ''
+  var leftover = this.alignedBuffer.toString(this.encoding, 0, this.alignedBytes)
+  this.alignedBytes = 0
+  return leftover
+}
+
+function alignedWrite(buffer) {
+  var rem = (this.alignedBytes + buffer.length) % this.alignedBuffer.length
+  if (!rem && !this.alignedBytes) return buffer.toString(this.encoding)
+
+  var returnBuffer = new Buffer(this.alignedBytes + buffer.length - rem)
+
+  this.alignedBuffer.copy(returnBuffer, 0, 0, this.alignedBytes)
+  buffer.copy(returnBuffer, this.alignedBytes, 0, buffer.length - rem)
+
+  buffer.copy(this.alignedBuffer, 0, buffer.length - rem, buffer.length)
+  this.alignedBytes = rem
+
+  return returnBuffer.toString(this.encoding)
+}