Code cosmetics comic reader
This commit is contained in:
+52
-50
@@ -8,7 +8,7 @@
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*
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* http://kthoom.googlecode.com/hg/docs/unrar.html
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*/
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/* global bitjs */
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/* global bitjs, importScripts */
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// This file expects to be invoked as a Worker (see onmessage below).
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importScripts("io.js");
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@@ -42,23 +42,23 @@ var postProgress = function() {
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// shows a byte value as its hex representation
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var nibble = "0123456789ABCDEF";
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var byteValueToHexString = function(num) {
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return nibble[num>>4] + nibble[num&0xF];
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return nibble[num>>4] + nibble[num & 0xF];
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};
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var twoByteValueToHexString = function(num) {
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return nibble[(num>>12)&0xF] + nibble[(num>>8)&0xF] + nibble[(num>>4)&0xF] + nibble[num&0xF];
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return nibble[(num>>12) & 0xF] + nibble[(num>>8) & 0xF] + nibble[(num>>4) & 0xF] + nibble[num & 0xF];
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};
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// Volume Types
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var MARK_HEAD = 0x72,
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MAIN_HEAD = 0x73,
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// MARK_HEAD = 0x72;
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var MAIN_HEAD = 0x73,
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FILE_HEAD = 0x74,
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COMM_HEAD = 0x75,
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AV_HEAD = 0x76,
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SUB_HEAD = 0x77,
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PROTECT_HEAD = 0x78,
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SIGN_HEAD = 0x79,
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NEWSUB_HEAD = 0x7a,
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// COMM_HEAD = 0x75,
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// AV_HEAD = 0x76,
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// SUB_HEAD = 0x77,
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// PROTECT_HEAD = 0x78,
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// SIGN_HEAD = 0x79,
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// NEWSUB_HEAD = 0x7a,
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ENDARC_HEAD = 0x7b;
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// bstream is a bit stream
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@@ -66,7 +66,7 @@ var RarVolumeHeader = function(bstream) {
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var headPos = bstream.bytePtr;
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// byte 1,2
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info("Rar Volume Header @"+bstream.bytePtr);
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info("Rar Volume Header @" + bstream.bytePtr);
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this.crc = bstream.readBits(16);
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info(" crc=" + this.crc);
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@@ -147,7 +147,7 @@ var RarVolumeHeader = function(bstream) {
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this.HighPackSize = 0;
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this.HighUnpSize = 0;
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if (this.unpackedSize == 0xffffffff) {
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this.HighUnpSize = 0x7fffffff
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this.HighUnpSize = 0x7fffffff;
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this.unpackedSize = 0xffffffff;
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}
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}
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@@ -160,7 +160,7 @@ var RarVolumeHeader = function(bstream) {
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// read in filename
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this.filename = bstream.readBytes(this.nameSize);
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for (var _i = 0, _s = ''; _i < this.filename.length; _i++) {
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for (var _i = 0, _s = ""; _i < this.filename.length ; _i++) {
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_s += String.fromCharCode(this.filename[_i]);
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}
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@@ -177,14 +177,16 @@ var RarVolumeHeader = function(bstream) {
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// this is adapted straight out of arcread.cpp, Archive::ReadHeader()
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for (var I = 0; I < 4; ++I) {
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var rmode = extTimeFlags >> ((3-I)*4);
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var rmode = extTimeFlags >> ((3 - I) * 4);
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if ((rmode & 8)==0)
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continue;
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if (I!=0)
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if (I!=0) {
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bstream.readBits(16);
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var count = (rmode&3);
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for (var J = 0; J < count; ++J)
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bstream.readBits(8);
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}
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var count = (rmode & 3);
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for (var J = 0; J < count; ++J) {
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bstream.readBits(8);
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}
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}
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}
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@@ -193,7 +195,7 @@ var RarVolumeHeader = function(bstream) {
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}
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while(headPos + this.headSize > bstream.bytePtr) bstream.readBits(1);
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while (headPos + this.headSize > bstream.bytePtr) bstream.readBits(1);
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info("Found FILE_HEAD with packSize=" + this.packSize + ", unpackedSize= " + this.unpackedSize + ", hostOS=" + this.hostOS + ", unpVer=" + this.unpVer + ", method=" + this.method + ", filename=" + this.filename);
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@@ -206,24 +208,24 @@ var RarVolumeHeader = function(bstream) {
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}
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};
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var BLOCK_LZ = 0,
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BLOCK_PPM = 1;
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var BLOCK_LZ = 0;
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// BLOCK_PPM = 1;
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var rLDecode = [0,1,2,3,4,5,6,7,8,10,12,14,16,20,24,28,32,40,48,56,64,80,96,112,128,160,192,224],
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rLBits = [0,0,0,0,0,0,0,0,1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5],
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rDBitLengthCounts = [4,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,14,0,12],
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rSDDecode = [0,4,8,16,32,64,128,192],
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var rLDecode = [0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224],
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rLBits = [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5],
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rDBitLengthCounts = [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 14, 0, 12],
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rSDDecode = [0, 4, 8, 16, 32, 64, 128, 192],
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rSDBits = [2,2,3, 4, 5, 6, 6, 6];
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var rDDecode = [0, 1, 2, 3, 4, 6, 8, 12, 16, 24, 32,
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48, 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, 3072,
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4096, 6144, 8192, 12288, 16384, 24576, 32768, 49152, 65536, 98304,
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131072, 196608, 262144, 327680, 393216, 458752, 524288, 589824,
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655360, 720896, 786432, 851968, 917504, 983040];
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48, 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, 3072,
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4096, 6144, 8192, 12288, 16384, 24576, 32768, 49152, 65536, 98304,
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131072, 196608, 262144, 327680, 393216, 458752, 524288, 589824,
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655360, 720896, 786432, 851968, 917504, 983040];
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var rDBits = [0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5,
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5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14,
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15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16];
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5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14,
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15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16];
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var rLOW_DIST_REP_COUNT = 16;
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@@ -232,35 +234,35 @@ var rNC = 299,
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rLDC = 17,
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rRC = 28,
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rBC = 20,
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rHUFF_TABLE_SIZE = (rNC+rDC+rRC+rLDC);
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rHUFF_TABLE_SIZE = (rNC + rDC + rRC + rLDC);
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var UnpBlockType = BLOCK_LZ;
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var UnpOldTable = new Array(rHUFF_TABLE_SIZE);
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var BD = { //bitdecode
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rBC)
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rBC)
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};
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var LD = { //litdecode
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rNC)
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rNC)
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};
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var DD = { //distdecode
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rDC)
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rDC)
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};
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var LDD = { //low dist decode
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rLDC)
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rLDC)
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};
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var RD = { //rep decode
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rRC)
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DecodeLen: new Array(16),
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DecodePos: new Array(16),
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DecodeNum: new Array(rRC)
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};
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var rBuffer;
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@@ -742,7 +744,7 @@ function unpack(v) {
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rBuffer = new bitjs.io.ByteBuffer(v.header.unpackedSize);
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info("Unpacking "+v.filename+" RAR v"+Ver);
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info("Unpacking " + v.filename+" RAR v" + Ver);
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switch(Ver) {
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case 15: // rar 1.5 compression
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@@ -816,7 +818,7 @@ var unrar = function(arrayBuffer) {
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postMessage(new bitjs.archive.UnarchiveStartEvent());
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var bstream = new bitjs.io.BitStream(arrayBuffer, false /* rtl */);
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var header = new RarVolumeHeader(bstream);
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if (header.crc == 0x6152 &&
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header.headType == 0x72 &&
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