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Removed this, will get from other project.

This commit is contained in:
Alan Kligman 2012-10-15 11:31:05 -04:00
parent 238b37c467
commit cb370a0ede
1 changed files with 0 additions and 277 deletions
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src/buffer.js
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@ -1,277 +0,0 @@
/*
Copyright (c) 2012, Alan Kligman
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the Mozilla Foundation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
;(function(window, undefined) {
'use strict';
/** Detect free variable `exports` */
var freeExports = (typeof exports == 'object') && exports &&
(typeof global == 'object' && global && global == global.global && (window = global)) ? exports : undefined;
/**
* [source]http://closure-library.googlecode.com/svn/docs/closure_goog_crypt_crypt.js.source.html
* Converts a JS string to a UTF-8 "byte" array.
* @param {string} str 16-bit unicode string.
* @return {Array.<number>} UTF-8 byte array.
*/
function stringToUtf8ByteArray(string, offset, length, buffer) {
// TODO(user): Use native implementations if/when available
string = string.replace(/\r\n/g, '\n');
var p = 0;
for (var i = offset; i < string.length && p < length; i++) {
var c = string.charCodeAt(i);
if (c < 128) {
buffer[p++] = c;
} else if (c < 2048) {
buffer[p++] = (c >> 6) | 192;
buffer[p++] = (c & 63) | 128;
} else {
buffer[p++] = (c >> 12) | 224;
buffer[p++] = ((c >> 6) & 63) | 128;
buffer[p++] = (c & 63) | 128;
}
}
return buffer;
};
/**
* [source]http://closure-library.googlecode.com/svn/docs/closure_goog_crypt_crypt.js.source.html
* Converts a UTF-8 byte array to JavaScript's 16-bit Unicode.
* @param {Array.<number>} bytes UTF-8 byte array.
* @return {string} 16-bit Unicode string.
*/
function utf8ByteArrayToString(bytes) {
// TODO(user): Use native implementations if/when available
var out = [], pos = 0, c = 0;
while (pos < bytes.length) {
var c1 = bytes[pos++];
if (c1 < 128) {
out[c++] = String.fromCharCode(c1);
} else if (c1 > 191 && c1 < 224) {
var c2 = bytes[pos++];
out[c++] = String.fromCharCode((c1 & 31) << 6 | c2 & 63);
} else {
var c2 = bytes[pos++];
var c3 = bytes[pos++];
out[c++] = String.fromCharCode(
(c1 & 15) << 12 | (c2 & 63) << 6 | c3 & 63);
}
}
return out.join('');
};
function isTypedArray(object) {
return object instanceof ArrayBuffer ||
object instanceof Int8Array ||
object instanceof Uint8Array ||
object instanceof Int16Array ||
object instanceof Uint16Array ||
object instanceof Int32Array ||
object instanceof Uint32Array ||
object instanceof Float32Array ||
object instanceof Float64Array;
}
function BufferOverflowError(){ Error.apply(this, arguments); }
BufferOverflowError.prototype = new Error();
BufferOverflowError.prototype.name = "BufferOverflowError";
BufferOverflowError.prototype.constructor = BufferOverflowError;
function Buffer(arg, optArg) {
this.__buffer__;
if(Array.isArray(arg) || isTypedArray(arg)) {
this.__buffer__ = new Uint8Array(arg);
} else if("string" === typeof arg) {
// FIXME: support other encodings
this.__buffer__ = new Uint8Array(Buffer.byteLength(arg));
this.write(arg);
} else if("number" === typeof arg) {
this.__buffer__ = new Uint8Array(arg);
} else {
// Do nothing!
}
}
Buffer.isBuffer = function isBuffer(object) {
return object instanceof Buffer;
};
Buffer.byteLength = function byteLength(string, optEncoding) {
// FIXME: support other encodings
return unescape(encodeURIComponent(string)).length;
};
Buffer.concat = function concat(list, optTotalLength) {
var i, l;
if(undefined === optTotalLength) {
optTotalLength = 0;
for(i = 0, l = list.length; i < l; ++ i) {
optTotalLength += list[i].length();
}
}
var target = new Buffer(optTotalLength);
var offset = 0;
for(i = 0, l = list.length; i < l; ++ i) {
var source = list[i];
source.copy(target, offset);
offset += source.length();
}
return target;
};
Buffer.prototype.length = function length() {
return this.__buffer__.length;
};
Buffer.prototype.write = function write(string, optOffset, optLength, optEncoding) {
// FIXME: support other encodings
optOffset = (undefined === optOffset) ? 0 : optOffset;
optLength = (undefined === optLength) ? Buffer.byteLength(string) : optLength;
stringToUtf8ByteArray(string, optOffset, optLength, this.__buffer__);
};
Buffer.prototype.toString = function toString(optEncoding, optStart, optEnd) {
// FIXME: support other encodings
optStart = (undefined === optStart) ? 0 : optStart;
optEnd = (undefined === optEnd) ? this.__buffer__.length : optEnd;
var source;
if(optStart > 0 || optEnd < this.__buffer__.length) {
source = this.__buffer__.subarray(optStart, optEnd);
} else {
source = this.__buffer__;
}
return utf8ByteArrayToString(source);
};
Buffer.prototype.copy = function copy(targetBuffer, optTargetStart, optSourceStart, optSourceEnd) {
optTargetStart = (undefined === optTargetStart) ? 0 : optTargetStart;
optSourceStart = (undefined === optSourceStart) ? 0 : optSourceStart;
optSourceEnd = (undefined === optSourceEnd) ? this.__buffer__.length : optSourceEnd;
var source;
if(optSourceStart > 0 || optSourceEnd < this.__buffer__.length) {
source = this.__buffer__.subarray(optSourceStart, optSourceEnd);
} else {
source = this.__buffer__;
}
console.log(source);
targetBuffer.__buffer__.set(source, optTargetStart);
};
Buffer.prototype.slice = function slice(optStart, optEnd) {
var bufferSlice = new Buffer();
bufferSlice.__buffer__ = this.__buffer__.subarray(optStart, optEnd);
return bufferSlice;
};
Buffer.prototype.readUInt8 = function readUInt8(offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 1) {
throw new BufferOverflowError();
}
return this.__buffer__[offset];
};
Buffer.prototype.writeUInt8 = function writeUInt8(value, offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 1) {
throw new BufferOverflowError();
}
this.__buffer__[offset] = value;
};
Buffer.prototype.readUInt16BE = function readUInt16BE(offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 2) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
return buffer[offset]<<8 | buffer[offset+1];
};
Buffer.prototype.readUInt16LE = function readUInt16LE(offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 2) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
return buffer[offset+1]<<8 | buffer[offset];
};
Buffer.prototype.writeUInt16BE = function writeUInt16BE(value, offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 2) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
buffer[offset] = value>>8 & 0xFF;
buffer[offset+1] = value & 0xFF;
};
Buffer.prototype.writeUInt16LE = function writeUInt16LE(value, offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 2) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
buffer[offset] = value & 0xFF;
buffer[offset+1] = value>>8 & 0xFF;
};
Buffer.prototype.readUInt32BE = function readUInt32BE(offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 4) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
return buffer[offset]<<24 | buffer[offset+1]<<16 | buffer[offset+2]<<8 | buffer[offset+3];
};
Buffer.prototype.readUInt32LE = function readUInt32LE(offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 4) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
return buffer[offset+3]<<24 | buffer[offset+2]<<16 | buffer[offset+1]<<8 | buffer[offset];
};
Buffer.prototype.writeUInt32BE = function writeUInt32BE(value, offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 4) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
buffer[offset] = value>>24 & 0xFF;
buffer[offset+1] = value>>16 & 0xFF;
buffer[offset+2] = value>>8 & 0xFF;
buffer[offset+3] = value & 0xFF;
};
Buffer.prototype.writeUInt32LE = function writeUInt32LE(value, offset, optNoAssert) {
if(!optNoAssert && offset > this.__buffer__.length - 4) {
throw new BufferOverflowError();
}
var buffer = this.__buffer__;
buffer[offset] = value & 0xFF;
buffer[offset+1] = value>>8 & 0xFF;
buffer[offset+2] = value>>16 & 0xFF;
buffer[offset+3] = value>>24 & 0xFF;
};
/*--------------------------------------------------------------------------*/
// expose the API (borrowed from Lodash: https://raw.github.com/bestiejs/lodash/v0.6.1/lodash.js)
// some AMD build optimizers, like r.js, check for specific condition patterns like the following:
if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
// Expose api to the global object even when an AMD loader is present in
// case Lo-Dash was injected by a third-party script and not intended to be
// loaded as a module. The global assignment can be reverted in the Lo-Dash
// module via its `noConflict()` method.
window.B = Buffer;
// define as an anonymous module so, through path mapping, it can be
// referenced as the "underscore" module
define(function() {
return Buffer;
});
}
// check for `exports` after `define` in case a build optimizer adds an `exports` object
else if (freeExports) {
// in Node.js or RingoJS v0.8.0+
if (typeof module == 'object' && module && module.exports == freeExports) {
(module.exports = api).B = Buffer;
}
// in Narwhal or RingoJS v0.7.0-
else {
freeExports.B = Buffer;
}
}
else {
// in a browser or Rhino
window.B = Buffer;
}
}(this));