mirror of
https://github.com/musix-org/musix-oss
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fix
This commit is contained in:
24
node_modules/unbzip2-stream/LICENSE
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vendored
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24
node_modules/unbzip2-stream/LICENSE
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vendored
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@ -0,0 +1,24 @@
|
||||
Copyright (c) 2017 by Jan Boelsche (jan@lagomorph.de)
|
||||
|
||||
based on bzip2.js - a small bzip2 decompression implementation
|
||||
Copyright 2011 by antimatter15 (antimatter15@gmail.com)
|
||||
|
||||
Based on micro-bunzip by Rob Landley (rob@landley.net).
|
||||
|
||||
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.
|
59
node_modules/unbzip2-stream/README.md
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59
node_modules/unbzip2-stream/README.md
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|
||||
[](http://badge.fury.io/js/unbzip2-stream)
|
||||
|
||||
unbzip2-stream
|
||||
===
|
||||
streaming bzip2 decompressor in pure JS for Node and browserify.
|
||||
|
||||
Buffers
|
||||
---
|
||||
When browserified, the stream emits instances of [feross/buffer](https://github.com/feross/buffer) instead of raw Uint8Arrays to have a consistant API across browsers and Node.
|
||||
|
||||
Usage
|
||||
---
|
||||
``` js
|
||||
var bz2 = require('unbzip2-stream');
|
||||
var fs = require('fs');
|
||||
|
||||
// decompress test.bz2 and output the result
|
||||
fs.createReadStream('./test.bz2').pipe(bz2()).pipe(process.stdout);
|
||||
```
|
||||
|
||||
Also see [test/browser/download.js](https://github.com/regular/unbzip2-stream/blob/master/test/browser/download.js) for an example of decompressing a file while downloading.
|
||||
|
||||
Or, using a <script> tag
|
||||
---
|
||||
|
||||
```
|
||||
<script src="https://npm-cdn.info/unbzip2-stream/dist/unbzip2-stream.min.js"></script>
|
||||
<script>
|
||||
var myStream = window.unbzip2Stream();
|
||||
// now pipe stuff through it (see above)
|
||||
</script>
|
||||
```
|
||||
|
||||
Tests
|
||||
---
|
||||
To run tests in Node:
|
||||
|
||||
npm run test
|
||||
|
||||
To run tests in PhantomJS
|
||||
|
||||
npm run browser-test
|
||||
|
||||
Additional Tests
|
||||
----------------
|
||||
There are two more tests that specifically test decompression of a very large file. Because I don't want to include large binary files in this repository, the files are created by running an npm script.
|
||||
|
||||
npm run prepare-long-test
|
||||
|
||||
You can now
|
||||
|
||||
npm run long-test
|
||||
|
||||
And to run a test in chrome that downloads and decompresses a large binary file
|
||||
|
||||
npm run download-test
|
||||
|
||||
Open the browser's console to see the output.
|
||||
|
1
node_modules/unbzip2-stream/dist/unbzip2-stream.min.js
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vendored
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1
node_modules/unbzip2-stream/dist/unbzip2-stream.min.js
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vendored
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File diff suppressed because one or more lines are too long
92
node_modules/unbzip2-stream/index.js
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vendored
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92
node_modules/unbzip2-stream/index.js
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|
||||
var through = require('through');
|
||||
var bz2 = require('./lib/bzip2');
|
||||
var bitIterator = require('./lib/bit_iterator');
|
||||
|
||||
module.exports = unbzip2Stream;
|
||||
|
||||
function unbzip2Stream() {
|
||||
var bufferQueue = [];
|
||||
var hasBytes = 0;
|
||||
var blockSize = 0;
|
||||
var broken = false;
|
||||
var done = false;
|
||||
var bitReader = null;
|
||||
var streamCRC = null;
|
||||
|
||||
function decompressBlock(push){
|
||||
if(!blockSize){
|
||||
blockSize = bz2.header(bitReader);
|
||||
//console.error("got header of", blockSize);
|
||||
return true;
|
||||
}else{
|
||||
var bufsize = 100000 * blockSize;
|
||||
var buf = new Int32Array(bufsize);
|
||||
|
||||
var chunk = [];
|
||||
var f = function(b) {
|
||||
chunk.push(b);
|
||||
};
|
||||
|
||||
streamCRC = bz2.decompress(bitReader, f, buf, bufsize, streamCRC);
|
||||
if (streamCRC === null) {
|
||||
// reset for next bzip2 header
|
||||
blockSize = 0;
|
||||
return false;
|
||||
}else{
|
||||
//console.error('decompressed', chunk.length,'bytes');
|
||||
push(Buffer.from(chunk));
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var outlength = 0;
|
||||
function decompressAndQueue(stream) {
|
||||
if (broken) return;
|
||||
try {
|
||||
return decompressBlock(function(d) {
|
||||
stream.queue(d);
|
||||
if (d !== null) {
|
||||
//console.error('write at', outlength.toString(16));
|
||||
outlength += d.length;
|
||||
} else {
|
||||
//console.error('written EOS');
|
||||
}
|
||||
});
|
||||
} catch(e) {
|
||||
//console.error(e);
|
||||
stream.emit('error', e);
|
||||
broken = true;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return through(
|
||||
function write(data) {
|
||||
//console.error('received', data.length,'bytes in', typeof data);
|
||||
bufferQueue.push(data);
|
||||
hasBytes += data.length;
|
||||
if (bitReader === null) {
|
||||
bitReader = bitIterator(function() {
|
||||
return bufferQueue.shift();
|
||||
});
|
||||
}
|
||||
while (!broken && hasBytes - bitReader.bytesRead + 1 >= ((25000 + 100000 * blockSize) || 4)){
|
||||
//console.error('decompressing with', hasBytes - bitReader.bytesRead + 1, 'bytes in buffer');
|
||||
decompressAndQueue(this);
|
||||
}
|
||||
},
|
||||
function end(x) {
|
||||
//console.error(x,'last compressing with', hasBytes, 'bytes in buffer');
|
||||
while (!broken && hasBytes > bitReader.bytesRead){
|
||||
decompressAndQueue(this);
|
||||
}
|
||||
if (!broken) {
|
||||
if (streamCRC !== null)
|
||||
stream.emit('error', new Error("input stream ended prematurely"));
|
||||
this.queue(null);
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
|
39
node_modules/unbzip2-stream/lib/bit_iterator.js
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vendored
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39
node_modules/unbzip2-stream/lib/bit_iterator.js
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vendored
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@ -0,0 +1,39 @@
|
||||
var BITMASK = [0, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF];
|
||||
|
||||
// returns a function that reads bits.
|
||||
// takes a buffer iterator as input
|
||||
module.exports = function bitIterator(nextBuffer) {
|
||||
var bit = 0, byte = 0;
|
||||
var bytes = nextBuffer();
|
||||
var f = function(n) {
|
||||
if (n === null && bit != 0) { // align to byte boundary
|
||||
bit = 0
|
||||
byte++;
|
||||
return;
|
||||
}
|
||||
var result = 0;
|
||||
while(n > 0) {
|
||||
if (byte >= bytes.length) {
|
||||
byte = 0;
|
||||
bytes = nextBuffer();
|
||||
}
|
||||
var left = 8 - bit;
|
||||
if (bit === 0 && n > 0)
|
||||
f.bytesRead++;
|
||||
if (n >= left) {
|
||||
result <<= left;
|
||||
result |= (BITMASK[left] & bytes[byte++]);
|
||||
bit = 0;
|
||||
n -= left;
|
||||
} else {
|
||||
result <<= n;
|
||||
result |= ((bytes[byte] & (BITMASK[n] << (8 - n - bit))) >> (8 - n - bit));
|
||||
bit += n;
|
||||
n = 0;
|
||||
}
|
||||
}
|
||||
return result;
|
||||
};
|
||||
f.bytesRead = 0;
|
||||
return f;
|
||||
};
|
367
node_modules/unbzip2-stream/lib/bzip2.js
generated
vendored
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367
node_modules/unbzip2-stream/lib/bzip2.js
generated
vendored
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@ -0,0 +1,367 @@
|
||||
/*
|
||||
bzip2.js - a small bzip2 decompression implementation
|
||||
|
||||
Copyright 2011 by antimatter15 (antimatter15@gmail.com)
|
||||
|
||||
Based on micro-bunzip by Rob Landley (rob@landley.net).
|
||||
|
||||
Copyright (c) 2011 by antimatter15 (antimatter15@gmail.com).
|
||||
|
||||
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.
|
||||
*/
|
||||
function Bzip2Error(message) {
|
||||
this.name = 'Bzip2Error';
|
||||
this.message = message;
|
||||
this.stack = (new Error()).stack;
|
||||
}
|
||||
Bzip2Error.prototype = new Error;
|
||||
|
||||
var message = {
|
||||
Error: function(message) {throw new Bzip2Error(message);}
|
||||
};
|
||||
|
||||
var bzip2 = {};
|
||||
bzip2.Bzip2Error = Bzip2Error;
|
||||
|
||||
bzip2.crcTable =
|
||||
[
|
||||
0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9,
|
||||
0x130476dc, 0x17c56b6b, 0x1a864db2, 0x1e475005,
|
||||
0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
|
||||
0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd,
|
||||
0x4c11db70, 0x48d0c6c7, 0x4593e01e, 0x4152fda9,
|
||||
0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
|
||||
0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011,
|
||||
0x791d4014, 0x7ddc5da3, 0x709f7b7a, 0x745e66cd,
|
||||
0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
|
||||
0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5,
|
||||
0xbe2b5b58, 0xbaea46ef, 0xb7a96036, 0xb3687d81,
|
||||
0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
|
||||
0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49,
|
||||
0xc7361b4c, 0xc3f706fb, 0xceb42022, 0xca753d95,
|
||||
0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
|
||||
0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d,
|
||||
0x34867077, 0x30476dc0, 0x3d044b19, 0x39c556ae,
|
||||
0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
|
||||
0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16,
|
||||
0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca,
|
||||
0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
|
||||
0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02,
|
||||
0x5e9f46bf, 0x5a5e5b08, 0x571d7dd1, 0x53dc6066,
|
||||
0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
|
||||
0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e,
|
||||
0xbfa1b04b, 0xbb60adfc, 0xb6238b25, 0xb2e29692,
|
||||
0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
|
||||
0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a,
|
||||
0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e,
|
||||
0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
|
||||
0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686,
|
||||
0xd5b88683, 0xd1799b34, 0xdc3abded, 0xd8fba05a,
|
||||
0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
|
||||
0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb,
|
||||
0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f,
|
||||
0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
|
||||
0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47,
|
||||
0x36194d42, 0x32d850f5, 0x3f9b762c, 0x3b5a6b9b,
|
||||
0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
|
||||
0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623,
|
||||
0xf12f560e, 0xf5ee4bb9, 0xf8ad6d60, 0xfc6c70d7,
|
||||
0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
|
||||
0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f,
|
||||
0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3,
|
||||
0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
|
||||
0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b,
|
||||
0x9b3660c6, 0x9ff77d71, 0x92b45ba8, 0x9675461f,
|
||||
0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
|
||||
0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640,
|
||||
0x4e8ee645, 0x4a4ffbf2, 0x470cdd2b, 0x43cdc09c,
|
||||
0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
|
||||
0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24,
|
||||
0x119b4be9, 0x155a565e, 0x18197087, 0x1cd86d30,
|
||||
0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
|
||||
0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088,
|
||||
0x2497d08d, 0x2056cd3a, 0x2d15ebe3, 0x29d4f654,
|
||||
0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
|
||||
0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c,
|
||||
0xe3a1cbc1, 0xe760d676, 0xea23f0af, 0xeee2ed18,
|
||||
0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
|
||||
0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0,
|
||||
0x9abc8bd5, 0x9e7d9662, 0x933eb0bb, 0x97ffad0c,
|
||||
0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
|
||||
0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
|
||||
];
|
||||
|
||||
bzip2.array = function(bytes) {
|
||||
var bit = 0, byte = 0;
|
||||
var BITMASK = [0, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF ];
|
||||
return function(n) {
|
||||
var result = 0;
|
||||
while(n > 0) {
|
||||
var left = 8 - bit;
|
||||
if (n >= left) {
|
||||
result <<= left;
|
||||
result |= (BITMASK[left] & bytes[byte++]);
|
||||
bit = 0;
|
||||
n -= left;
|
||||
} else {
|
||||
result <<= n;
|
||||
result |= ((bytes[byte] & (BITMASK[n] << (8 - n - bit))) >> (8 - n - bit));
|
||||
bit += n;
|
||||
n = 0;
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
bzip2.simple = function(srcbuffer, stream) {
|
||||
var bits = bzip2.array(srcbuffer);
|
||||
var size = bzip2.header(bits);
|
||||
var ret = false;
|
||||
var bufsize = 100000 * size;
|
||||
var buf = new Int32Array(bufsize);
|
||||
|
||||
do {
|
||||
ret = bzip2.decompress(bits, stream, buf, bufsize);
|
||||
} while(!ret);
|
||||
}
|
||||
|
||||
bzip2.header = function(bits) {
|
||||
this.byteCount = new Int32Array(256);
|
||||
this.symToByte = new Uint8Array(256);
|
||||
this.mtfSymbol = new Int32Array(256);
|
||||
this.selectors = new Uint8Array(0x8000);
|
||||
|
||||
if (bits(8*3) != 4348520) message.Error("No magic number found");
|
||||
|
||||
var i = bits(8) - 48;
|
||||
if (i < 1 || i > 9) message.Error("Not a BZIP archive");
|
||||
return i;
|
||||
};
|
||||
|
||||
|
||||
//takes a function for reading the block data (starting with 0x314159265359)
|
||||
//a block size (0-9) (optional, defaults to 9)
|
||||
//a length at which to stop decompressing and return the output
|
||||
bzip2.decompress = function(bits, stream, buf, bufsize, streamCRC) {
|
||||
var MAX_HUFCODE_BITS = 20;
|
||||
var MAX_SYMBOLS = 258;
|
||||
var SYMBOL_RUNA = 0;
|
||||
var SYMBOL_RUNB = 1;
|
||||
var GROUP_SIZE = 50;
|
||||
var crc = 0 ^ (-1);
|
||||
|
||||
for(var h = '', i = 0; i < 6; i++) h += bits(8).toString(16);
|
||||
if (h == "177245385090") {
|
||||
var finalCRC = bits(32)|0;
|
||||
if (finalCRC !== streamCRC) message.Error("Error in bzip2: crc32 do not match");
|
||||
// align stream to byte
|
||||
bits(null);
|
||||
return null; // reset streamCRC for next call
|
||||
}
|
||||
if (h != "314159265359") message.Error("eek not valid bzip data");
|
||||
var crcblock = bits(32)|0; // CRC code
|
||||
if (bits(1)) message.Error("unsupported obsolete version");
|
||||
var origPtr = bits(24);
|
||||
if (origPtr > bufsize) message.Error("Initial position larger than buffer size");
|
||||
var t = bits(16);
|
||||
var symTotal = 0;
|
||||
for (i = 0; i < 16; i++) {
|
||||
if (t & (1 << (15 - i))) {
|
||||
var k = bits(16);
|
||||
for(j = 0; j < 16; j++) {
|
||||
if (k & (1 << (15 - j))) {
|
||||
this.symToByte[symTotal++] = (16 * i) + j;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var groupCount = bits(3);
|
||||
if (groupCount < 2 || groupCount > 6) message.Error("another error");
|
||||
var nSelectors = bits(15);
|
||||
if (nSelectors == 0) message.Error("meh");
|
||||
for(var i = 0; i < groupCount; i++) this.mtfSymbol[i] = i;
|
||||
|
||||
for(var i = 0; i < nSelectors; i++) {
|
||||
for(var j = 0; bits(1); j++) if (j >= groupCount) message.Error("whoops another error");
|
||||
var uc = this.mtfSymbol[j];
|
||||
for(var k = j-1; k>=0; k--) {
|
||||
this.mtfSymbol[k+1] = this.mtfSymbol[k];
|
||||
}
|
||||
this.mtfSymbol[0] = uc;
|
||||
this.selectors[i] = uc;
|
||||
}
|
||||
|
||||
var symCount = symTotal + 2;
|
||||
var groups = [];
|
||||
var length = new Uint8Array(MAX_SYMBOLS),
|
||||
temp = new Uint16Array(MAX_HUFCODE_BITS+1);
|
||||
|
||||
var hufGroup;
|
||||
|
||||
for(var j = 0; j < groupCount; j++) {
|
||||
t = bits(5); //lengths
|
||||
for(var i = 0; i < symCount; i++) {
|
||||
while(true){
|
||||
if (t < 1 || t > MAX_HUFCODE_BITS) message.Error("I gave up a while ago on writing error messages");
|
||||
if (!bits(1)) break;
|
||||
if (!bits(1)) t++;
|
||||
else t--;
|
||||
}
|
||||
length[i] = t;
|
||||
}
|
||||
var minLen, maxLen;
|
||||
minLen = maxLen = length[0];
|
||||
for(var i = 1; i < symCount; i++) {
|
||||
if (length[i] > maxLen) maxLen = length[i];
|
||||
else if (length[i] < minLen) minLen = length[i];
|
||||
}
|
||||
hufGroup = groups[j] = {};
|
||||
hufGroup.permute = new Int32Array(MAX_SYMBOLS);
|
||||
hufGroup.limit = new Int32Array(MAX_HUFCODE_BITS + 1);
|
||||
hufGroup.base = new Int32Array(MAX_HUFCODE_BITS + 1);
|
||||
|
||||
hufGroup.minLen = minLen;
|
||||
hufGroup.maxLen = maxLen;
|
||||
var base = hufGroup.base.subarray(1);
|
||||
var limit = hufGroup.limit.subarray(1);
|
||||
var pp = 0;
|
||||
for(var i = minLen; i <= maxLen; i++)
|
||||
for(var t = 0; t < symCount; t++)
|
||||
if (length[t] == i) hufGroup.permute[pp++] = t;
|
||||
for(i = minLen; i <= maxLen; i++) temp[i] = limit[i] = 0;
|
||||
for(i = 0; i < symCount; i++) temp[length[i]]++;
|
||||
pp = t = 0;
|
||||
for(i = minLen; i < maxLen; i++) {
|
||||
pp += temp[i];
|
||||
limit[i] = pp - 1;
|
||||
pp <<= 1;
|
||||
base[i+1] = pp - (t += temp[i]);
|
||||
}
|
||||
limit[maxLen] = pp + temp[maxLen] - 1;
|
||||
base[minLen] = 0;
|
||||
}
|
||||
|
||||
for(var i = 0; i < 256; i++) {
|
||||
this.mtfSymbol[i] = i;
|
||||
this.byteCount[i] = 0;
|
||||
}
|
||||
var runPos, count, symCount, selector;
|
||||
runPos = count = symCount = selector = 0;
|
||||
while(true) {
|
||||
if (!(symCount--)) {
|
||||
symCount = GROUP_SIZE - 1;
|
||||
if (selector >= nSelectors) message.Error("meow i'm a kitty, that's an error");
|
||||
hufGroup = groups[this.selectors[selector++]];
|
||||
base = hufGroup.base.subarray(1);
|
||||
limit = hufGroup.limit.subarray(1);
|
||||
}
|
||||
i = hufGroup.minLen;
|
||||
j = bits(i);
|
||||
while(true) {
|
||||
if (i > hufGroup.maxLen) message.Error("rawr i'm a dinosaur");
|
||||
if (j <= limit[i]) break;
|
||||
i++;
|
||||
j = (j << 1) | bits(1);
|
||||
}
|
||||
j -= base[i];
|
||||
if (j < 0 || j >= MAX_SYMBOLS) message.Error("moo i'm a cow");
|
||||
var nextSym = hufGroup.permute[j];
|
||||
if (nextSym == SYMBOL_RUNA || nextSym == SYMBOL_RUNB) {
|
||||
if (!runPos){
|
||||
runPos = 1;
|
||||
t = 0;
|
||||
}
|
||||
if (nextSym == SYMBOL_RUNA) t += runPos;
|
||||
else t += 2 * runPos;
|
||||
runPos <<= 1;
|
||||
continue;
|
||||
}
|
||||
if (runPos) {
|
||||
runPos = 0;
|
||||
if (count + t > bufsize) message.Error("Boom.");
|
||||
uc = this.symToByte[this.mtfSymbol[0]];
|
||||
this.byteCount[uc] += t;
|
||||
while(t--) buf[count++] = uc;
|
||||
}
|
||||
if (nextSym > symTotal) break;
|
||||
if (count >= bufsize) message.Error("I can't think of anything. Error");
|
||||
i = nextSym - 1;
|
||||
uc = this.mtfSymbol[i];
|
||||
for(var k = i-1; k>=0; k--) {
|
||||
this.mtfSymbol[k+1] = this.mtfSymbol[k];
|
||||
}
|
||||
this.mtfSymbol[0] = uc
|
||||
uc = this.symToByte[uc];
|
||||
this.byteCount[uc]++;
|
||||
buf[count++] = uc;
|
||||
}
|
||||
if (origPtr < 0 || origPtr >= count) message.Error("I'm a monkey and I'm throwing something at someone, namely you");
|
||||
var j = 0;
|
||||
for(var i = 0; i < 256; i++) {
|
||||
k = j + this.byteCount[i];
|
||||
this.byteCount[i] = j;
|
||||
j = k;
|
||||
}
|
||||
for(var i = 0; i < count; i++) {
|
||||
uc = buf[i] & 0xff;
|
||||
buf[this.byteCount[uc]] |= (i << 8);
|
||||
this.byteCount[uc]++;
|
||||
}
|
||||
var pos = 0, current = 0, run = 0;
|
||||
if (count) {
|
||||
pos = buf[origPtr];
|
||||
current = (pos & 0xff);
|
||||
pos >>= 8;
|
||||
run = -1;
|
||||
}
|
||||
count = count;
|
||||
var copies, previous, outbyte;
|
||||
while(count) {
|
||||
count--;
|
||||
previous = current;
|
||||
pos = buf[pos];
|
||||
current = pos & 0xff;
|
||||
pos >>= 8;
|
||||
if (run++ == 3) {
|
||||
copies = current;
|
||||
outbyte = previous;
|
||||
current = -1;
|
||||
} else {
|
||||
copies = 1;
|
||||
outbyte = current;
|
||||
}
|
||||
while(copies--) {
|
||||
crc = ((crc << 8) ^ this.crcTable[((crc>>24) ^ outbyte) & 0xFF])&0xFFFFFFFF; // crc32
|
||||
stream(outbyte);
|
||||
}
|
||||
if (current != previous) run = 0;
|
||||
}
|
||||
|
||||
crc = (crc ^ (-1)) >>> 0;
|
||||
if ((crc|0) != (crcblock|0)) message.Error("Error in bzip2: crc32 do not match");
|
||||
if (streamCRC === null)
|
||||
streamCRC = 0;
|
||||
streamCRC = (crc ^ ((streamCRC << 1) | (streamCRC >>> 31))) & 0xFFFFFFFF;
|
||||
return streamCRC;
|
||||
}
|
||||
|
||||
module.exports = bzip2;
|
80
node_modules/unbzip2-stream/package.json
generated
vendored
Normal file
80
node_modules/unbzip2-stream/package.json
generated
vendored
Normal file
@ -0,0 +1,80 @@
|
||||
{
|
||||
"_from": "unbzip2-stream@^1.0.9",
|
||||
"_id": "unbzip2-stream@1.3.3",
|
||||
"_inBundle": false,
|
||||
"_integrity": "sha512-fUlAF7U9Ah1Q6EieQ4x4zLNejrRvDWUYmxXUpN3uziFYCHapjWFaCAnreY9bGgxzaMCFAPPpYNng57CypwJVhg==",
|
||||
"_location": "/unbzip2-stream",
|
||||
"_phantomChildren": {},
|
||||
"_requested": {
|
||||
"type": "range",
|
||||
"registry": true,
|
||||
"raw": "unbzip2-stream@^1.0.9",
|
||||
"name": "unbzip2-stream",
|
||||
"escapedName": "unbzip2-stream",
|
||||
"rawSpec": "^1.0.9",
|
||||
"saveSpec": null,
|
||||
"fetchSpec": "^1.0.9"
|
||||
},
|
||||
"_requiredBy": [
|
||||
"/decompress-tarbz2"
|
||||
],
|
||||
"_resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.3.3.tgz",
|
||||
"_shasum": "d156d205e670d8d8c393e1c02ebd506422873f6a",
|
||||
"_spec": "unbzip2-stream@^1.0.9",
|
||||
"_where": "C:\\Users\\matia\\Musix\\node_modules\\decompress-tarbz2",
|
||||
"author": {
|
||||
"name": "Jan Bölsche",
|
||||
"email": "jan@lagomorph.de"
|
||||
},
|
||||
"bugs": {
|
||||
"url": "https://github.com/regular/unbzip2-stream/issues"
|
||||
},
|
||||
"bundleDependencies": false,
|
||||
"dependencies": {
|
||||
"buffer": "^5.2.1",
|
||||
"through": "^2.3.8"
|
||||
},
|
||||
"deprecated": false,
|
||||
"description": "streaming unbzip2 implementation in pure javascript for node and browsers",
|
||||
"devDependencies": {
|
||||
"beefy": "^2.1.8",
|
||||
"brfs": "^1.2.0",
|
||||
"browserify": "^16.2.3",
|
||||
"concat-stream": "^1.4.7",
|
||||
"stream-equal": "^1.1.1",
|
||||
"tape": "^4.9.2",
|
||||
"tape-run": "^4.0.0",
|
||||
"uglify-js": "^3.0.10"
|
||||
},
|
||||
"files": [
|
||||
"index.js",
|
||||
"lib",
|
||||
"dist/unbzip2-stream.min.js"
|
||||
],
|
||||
"homepage": "https://github.com/regular/unbzip2-stream#readme",
|
||||
"keywords": [
|
||||
"bzip",
|
||||
"bzip2",
|
||||
"bz2",
|
||||
"stream",
|
||||
"streaming",
|
||||
"decompress",
|
||||
"through"
|
||||
],
|
||||
"license": "MIT",
|
||||
"main": "index.js",
|
||||
"name": "unbzip2-stream",
|
||||
"repository": {
|
||||
"url": "git+https://github.com/regular/unbzip2-stream.git",
|
||||
"type": "git"
|
||||
},
|
||||
"scripts": {
|
||||
"browser-test": "browserify -t brfs test/simple.js | tape-run",
|
||||
"download-test": "beefy test/browser/long.js --open -- -t brfs",
|
||||
"long-test": "tape test/extra/long.js",
|
||||
"prepare": "mkdir -p dist && browserify -s unbzip2Stream index.js | uglifyjs > dist/unbzip2-stream.min.js",
|
||||
"prepare-long-test": "head -c 104857600 < /dev/urandom | tee test/fixtures/vmlinux.bin | bzip2 > test/fixtures/vmlinux.bin.bz2",
|
||||
"test": "tape test/*.js"
|
||||
},
|
||||
"version": "1.3.3"
|
||||
}
|
Reference in New Issue
Block a user