diff options
Diffstat (limited to 'deps/npm/node_modules/stringstream/stringstream.js')
-rw-r--r-- | deps/npm/node_modules/stringstream/stringstream.js | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/deps/npm/node_modules/stringstream/stringstream.js b/deps/npm/node_modules/stringstream/stringstream.js deleted file mode 100644 index 6732b9d94d..0000000000 --- a/deps/npm/node_modules/stringstream/stringstream.js +++ /dev/null @@ -1,102 +0,0 @@ -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) || typeof data === 'number') 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) -} |