How to use readBits method in wpt

Best JavaScript code snippet using wpt

unrar.js

Source:unrar.js

...58  var headPos = bstream.bytePtr;59  // byte 1,260  info("Rar Volume Header @"+bstream.bytePtr);61  62  this.crc = bstream.readBits(16);63  info("  crc=" + this.crc);64  // byte 365  this.headType = bstream.readBits(8);66  info("  headType=" + this.headType);67  // Get flags68  // bytes 4,569  this.flags = {};70  this.flags.value = bstream.peekBits(16);71  72  info("  flags=" + twoByteValueToHexString(this.flags.value));73  switch (this.headType) {74  case MAIN_HEAD:75    this.flags.MHD_VOLUME = !!bstream.readBits(1);76    this.flags.MHD_COMMENT = !!bstream.readBits(1);77    this.flags.MHD_LOCK = !!bstream.readBits(1);78    this.flags.MHD_SOLID = !!bstream.readBits(1);79    this.flags.MHD_PACK_COMMENT = !!bstream.readBits(1);80    this.flags.MHD_NEWNUMBERING = this.flags.MHD_PACK_COMMENT;81    this.flags.MHD_AV = !!bstream.readBits(1);82    this.flags.MHD_PROTECT = !!bstream.readBits(1);83    this.flags.MHD_PASSWORD = !!bstream.readBits(1);84    this.flags.MHD_FIRSTVOLUME = !!bstream.readBits(1);85    this.flags.MHD_ENCRYPTVER = !!bstream.readBits(1);86    bstream.readBits(6); // unused87    break;88  case FILE_HEAD:89    this.flags.LHD_SPLIT_BEFORE = !!bstream.readBits(1); // 0x000190    this.flags.LHD_SPLIT_AFTER = !!bstream.readBits(1); // 0x000291    this.flags.LHD_PASSWORD = !!bstream.readBits(1); // 0x000492    this.flags.LHD_COMMENT = !!bstream.readBits(1); // 0x000893    this.flags.LHD_SOLID = !!bstream.readBits(1); // 0x001094    bstream.readBits(3); // unused95    this.flags.LHD_LARGE = !!bstream.readBits(1); // 0x010096    this.flags.LHD_UNICODE = !!bstream.readBits(1); // 0x020097    this.flags.LHD_SALT = !!bstream.readBits(1); // 0x040098    this.flags.LHD_VERSION = !!bstream.readBits(1); // 0x080099    this.flags.LHD_EXTTIME = !!bstream.readBits(1); // 0x1000100    this.flags.LHD_EXTFLAGS = !!bstream.readBits(1); // 0x2000101    bstream.readBits(2); // unused102    info("  LHD_SPLIT_BEFORE = " + this.flags.LHD_SPLIT_BEFORE);103    break;104  default:105    bstream.readBits(16);106  }107  108  // byte 6,7109  this.headSize = bstream.readBits(16);110  info("  headSize=" + this.headSize);111  switch (this.headType) {112  case MAIN_HEAD:113    this.highPosAv = bstream.readBits(16);114    this.posAv = bstream.readBits(32);115    if (this.flags.MHD_ENCRYPTVER) {116      this.encryptVer = bstream.readBits(8);117    }118    info("Found MAIN_HEAD with highPosAv=" + this.highPosAv + ", posAv=" + this.posAv);119    break;120  case FILE_HEAD:121    this.packSize = bstream.readBits(32);122    this.unpackedSize = bstream.readBits(32);123    this.hostOS = bstream.readBits(8);124    this.fileCRC = bstream.readBits(32);125    this.fileTime = bstream.readBits(32);126    this.unpVer = bstream.readBits(8);127    this.method = bstream.readBits(8);128    this.nameSize = bstream.readBits(16);129    this.fileAttr = bstream.readBits(32);130    131    if (this.flags.LHD_LARGE) {132      info("Warning: Reading in LHD_LARGE 64-bit size values");133      this.HighPackSize = bstream.readBits(32);134      this.HighUnpSize = bstream.readBits(32);135    } else {136      this.HighPackSize = 0;137      this.HighUnpSize = 0;138      if (this.unpackedSize == 0xffffffff) {139        this.HighUnpSize = 0x7fffffff140        this.unpackedSize = 0xffffffff;141      }142    }143    this.fullPackSize = 0;144    this.fullUnpackSize = 0;145    this.fullPackSize |= this.HighPackSize;146    this.fullPackSize <<= 32;147    this.fullPackSize |= this.packSize;148    149    // read in filename150    151    this.filename = bstream.readBytes(this.nameSize);152    for (var _i = 0, _s = ''; _i < this.filename.length; _i++) {153      _s += String.fromCharCode(this.filename[_i]);154    }155    156    this.filename = _s;157    158    if (this.flags.LHD_SALT) {159      info("Warning: Reading in 64-bit salt value");160      this.salt = bstream.readBits(64); // 8 bytes161    }162    163    if (this.flags.LHD_EXTTIME) {164      // 16-bit flags165      var extTimeFlags = bstream.readBits(16);166      167      // this is adapted straight out of arcread.cpp, Archive::ReadHeader()168      for (var I = 0; I < 4; ++I) {169        var rmode = extTimeFlags >> ((3-I)*4);170        if ((rmode & 8)==0)171          continue;172        if (I!=0)173          bstream.readBits(16);174          var count = (rmode&3);175          for (var J = 0; J < count; ++J) 176            bstream.readBits(8);177      }178    }179    180    if (this.flags.LHD_COMMENT) {181      info("Found a LHD_COMMENT");182    }183    184    185    while(headPos + this.headSize > bstream.bytePtr) bstream.readBits(1);186    187    info("Found FILE_HEAD with packSize=" + this.packSize + ", unpackedSize= " + this.unpackedSize + ", hostOS=" + this.hostOS + ", unpVer=" + this.unpVer + ", method=" + this.method + ", filename=" + this.filename);188    189    break;190  default:191    info("Found a header of type 0x" + byteValueToHexString(this.headType));192    // skip the rest of the header bytes (for now)193    bstream.readBytes( this.headSize - 7 );194    break;195  }196};197var BLOCK_LZ = 0,198  BLOCK_PPM = 1;199var 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],200  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],201  rDBitLengthCounts = [4,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,14,0,12],202  rSDDecode = [0,4,8,16,32,64,128,192],203  rSDBits = [2,2,3, 4, 5, 6,  6,  6];204  205var rDDecode = [0, 1, 2, 3, 4, 6, 8, 12, 16, 24, 32,206			48, 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, 3072,207			4096, 6144, 8192, 12288, 16384, 24576, 32768, 49152, 65536, 98304,208			131072, 196608, 262144, 327680, 393216, 458752, 524288, 589824,209			655360, 720896, 786432, 851968, 917504, 983040];210var rDBits = [0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5,211			5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14,212			15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16];213var rLOW_DIST_REP_COUNT = 16;214var rNC = 299,215  rDC = 60,216  rLDC = 17,217  rRC = 28,218  rBC = 20,219  rHUFF_TABLE_SIZE = (rNC+rDC+rRC+rLDC);220var UnpBlockType = BLOCK_LZ;221var UnpOldTable = new Array(rHUFF_TABLE_SIZE);222var BD = { //bitdecode223  DecodeLen: new Array(16),224  DecodePos: new Array(16),225  DecodeNum: new Array(rBC)226};227var LD = { //litdecode228  DecodeLen: new Array(16),229  DecodePos: new Array(16),230  DecodeNum: new Array(rNC)231};232var DD = { //distdecode233  DecodeLen: new Array(16),234  DecodePos: new Array(16),235  DecodeNum: new Array(rDC)236};237var LDD = { //low dist decode238  DecodeLen: new Array(16),239  DecodePos: new Array(16),240  DecodeNum: new Array(rLDC)241};242var RD = { //rep decode243  DecodeLen: new Array(16),244  DecodePos: new Array(16),245  DecodeNum: new Array(rRC)246};247var rBuffer;248// read in Huffman tables for RAR249function RarReadTables(bstream) {250  var BitLength = new Array(rBC),251    Table = new Array(rHUFF_TABLE_SIZE);252  // before we start anything we need to get byte-aligned253  bstream.readBits( (8 - bstream.bitPtr) & 0x7 );254  255  if (bstream.readBits(1)) {256    info("Error!  PPM not implemented yet");257    return;258  }259  260  if (!bstream.readBits(1)) { //discard old table261    for (var i = UnpOldTable.length; i--;) UnpOldTable[i] = 0;262  }263  // read in bit lengths264  for (var I = 0; I < rBC; ++I) {265    var Length = bstream.readBits(4);266    if (Length == 15) {267      var ZeroCount = bstream.readBits(4);268      if (ZeroCount == 0) {269        BitLength[I] = 15;270      }271      else {272        ZeroCount += 2;273        while (ZeroCount-- > 0 && I < rBC)274          BitLength[I++] = 0;275        --I;276      }277    }278    else {279      BitLength[I] = Length;280    }281  }282  283  // now all 20 bit lengths are obtained, we construct the Huffman Table:284  RarMakeDecodeTables(BitLength, 0, BD, rBC);285  286  var TableSize = rHUFF_TABLE_SIZE;287  //console.log(DecodeLen, DecodePos, DecodeNum);288  for (var i = 0; i < TableSize;) {289    var num = RarDecodeNumber(bstream, BD);290    if (num < 16) {291      Table[i] = (num + UnpOldTable[i]) & 0xf;292      i++;293    } else if(num < 18) {294      var N = (num == 16) ? (bstream.readBits(3) + 3) : (bstream.readBits(7) + 11);295      while (N-- > 0 && i < TableSize) {296        Table[i] = Table[i - 1];297        i++;298      }299    } else {300      var N = (num == 18) ? (bstream.readBits(3) + 3) : (bstream.readBits(7) + 11);301      while (N-- > 0 && i < TableSize) {302        Table[i++] = 0;303      }304    }305  }306  307  RarMakeDecodeTables(Table, 0, LD, rNC);308  RarMakeDecodeTables(Table, rNC, DD, rDC);309  RarMakeDecodeTables(Table, rNC + rDC, LDD, rLDC);310  RarMakeDecodeTables(Table, rNC + rDC + rLDC, RD, rRC);  311  312  for (var i = UnpOldTable.length; i--;) {313    UnpOldTable[i] = Table[i];314  }315  return true;316}317function RarDecodeNumber(bstream, dec) {318  var DecodeLen = dec.DecodeLen, DecodePos = dec.DecodePos, DecodeNum = dec.DecodeNum;319  var bitField = bstream.getBits() & 0xfffe;320  //some sort of rolled out binary search321  var bits = ((bitField < DecodeLen[8])?322    ((bitField < DecodeLen[4])?323      ((bitField < DecodeLen[2])?324        ((bitField < DecodeLen[1])?1:2)325       :((bitField < DecodeLen[3])?3:4))326     :(bitField < DecodeLen[6])?327        ((bitField < DecodeLen[5])?5:6)328        :((bitField < DecodeLen[7])?7:8))329    :((bitField < DecodeLen[12])?330      ((bitField < DecodeLen[10])?331        ((bitField < DecodeLen[9])?9:10)332       :((bitField < DecodeLen[11])?11:12))333     :(bitField < DecodeLen[14])?334        ((bitField < DecodeLen[13])?13:14)335        :15));336  bstream.readBits(bits);337  var N = DecodePos[bits] + ((bitField - DecodeLen[bits -1]) >>> (16 - bits));338  339  return DecodeNum[N];340}341function RarMakeDecodeTables(BitLength, offset, dec, size) {342  var DecodeLen = dec.DecodeLen, DecodePos = dec.DecodePos, DecodeNum = dec.DecodeNum;343  var LenCount = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],344      TmpPos = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],345      N = 0, M = 0;346  for (var i = DecodeNum.length; i--;) DecodeNum[i] = 0;347  for (var i = 0; i < size; i++) {348    LenCount[BitLength[i + offset] & 0xF]++;349  }350  LenCount[0] = 0;351  TmpPos[0] = 0;352  DecodePos[0] = 0;353  DecodeLen[0] = 0;354  355  for (var I = 1; I < 16; ++I) {356    N = 2 * (N+LenCount[I]);357    M = (N << (15-I));358    if (M > 0xFFFF)359      M = 0xFFFF;360    DecodeLen[I] = M;361    DecodePos[I] = DecodePos[I-1] + LenCount[I-1];362    TmpPos[I] = DecodePos[I];363  }364  for (I = 0; I < size; ++I)365    if (BitLength[I + offset] != 0)366      DecodeNum[ TmpPos[ BitLength[offset + I] & 0xF ]++] = I;367}368// TODO: implement369function Unpack15(bstream, Solid) {370  info("ERROR!  RAR 1.5 compression not supported");371}372function Unpack20(bstream, Solid) {373  var destUnpSize = rBuffer.data.length;374  var oldDistPtr = 0;375  376  RarReadTables20(bstream);377  while (destUnpSize > rBuffer.ptr) {378    var num = RarDecodeNumber(bstream, LD);379    if (num < 256) {380      rBuffer.insertByte(num);381      continue;382    }383    if (num > 269) {384      var Length = rLDecode[num -= 270] + 3;385      if ((Bits = rLBits[num]) > 0) {386        Length += bstream.readBits(Bits);387      }388      var DistNumber = RarDecodeNumber(bstream, DD);389      var Distance = rDDecode[DistNumber] + 1;390      if ((Bits = rDBits[DistNumber]) > 0) {391        Distance += bstream.readBits(Bits);392      }393      if (Distance >= 0x2000) {394        Length++;395        if(Distance >= 0x40000) Length++;396      }397      lastLength = Length;398      lastDist = rOldDist[oldDistPtr++ & 3] = Distance;399      RarCopyString(Length, Distance);400      continue;401    }402    if (num == 269) {403      RarReadTables20(bstream);404      RarUpdateProgress()405      406      continue;407    }408    if (num == 256) {409      lastDist = rOldDist[oldDistPtr++ & 3] = lastDist;410      RarCopyString(lastLength, lastDist);411      continue;412    }413    if (num < 261) {414      var Distance = rOldDist[(oldDistPtr - (num - 256)) & 3];415      var LengthNumber = RarDecodeNumber(bstream, RD);416      var Length = rLDecode[LengthNumber] +2;417      if ((Bits = rLBits[LengthNumber]) > 0) {418        Length += bstream.readBits(Bits);419      }420      if (Distance >= 0x101) {421        Length++;422        if (Distance >= 0x2000) {423          Length++424          if (Distance >= 0x40000) Length++;425        }426      }427      lastLength = Length;428      lastDist = rOldDist[oldDistPtr++ & 3] = Distance;429      RarCopyString(Length, Distance);430      continue;431    }432    if (num < 270) {433      var Distance = rSDDecode[num -= 261] + 1;434      if ((Bits = rSDBits[num]) > 0) {435        Distance += bstream.readBits(Bits);436      }437      lastLength = 2;438      lastDist = rOldDist[oldDistPtr++ & 3] = Distance;439      RarCopyString(2, Distance);440      continue;441    }442    443  }444  RarUpdateProgress()445}446function RarUpdateProgress() {447  var change = rBuffer.ptr - currentBytesUnarchivedInFile;448  currentBytesUnarchivedInFile = rBuffer.ptr;449  currentBytesUnarchived += change;450  postProgress();451}452var rNC20 = 298,453    rDC20 = 48,454    rRC20 = 28,455    rBC20 = 19,456    rMC20 = 257;457var UnpOldTable20 = new Array(rMC20 * 4);458function RarReadTables20(bstream) {459  var BitLength = new Array(rBC20);460  var Table = new Array(rMC20 * 4);461  var TableSize, N, I;462  var AudioBlock = bstream.readBits(1);463  if (!bstream.readBits(1))464    for (var i = UnpOldTable20.length; i--;) UnpOldTable20[i] = 0;465  TableSize = rNC20 + rDC20 + rRC20;466  for (var I = 0; I < rBC20; I++)467    BitLength[I] = bstream.readBits(4);468  RarMakeDecodeTables(BitLength, 0, BD, rBC20);469  I = 0;470  while (I < TableSize) {471    var num = RarDecodeNumber(bstream, BD);472    if (num < 16) {473      Table[I] = num + UnpOldTable20[I] & 0xf;474      I++;475    } else if(num == 16) {476      N = bstream.readBits(2) + 3;477      while (N-- > 0 && I < TableSize) {478        Table[I] = Table[I - 1];479        I++;480      }481    } else {482      if (num == 17) {483        N = bstream.readBits(3) + 3;484      } else {485        N = bstream.readBits(7) + 11;486      }487      while (N-- > 0 && I < TableSize) {488        Table[I++] = 0;489      }490    }491  }492  RarMakeDecodeTables(Table, 0, LD, rNC20);493  RarMakeDecodeTables(Table, rNC20, DD, rDC20);494  RarMakeDecodeTables(Table, rNC20 + rDC20, RD, rRC20);495  for (var i = UnpOldTable20.length; i--;) UnpOldTable20[i] = Table[i];496}497var lowDistRepCount = 0, prevLowDist = 0;498var rOldDist = [0,0,0,0];499var lastDist;500var lastLength;501function Unpack29(bstream, Solid) {502  // lazy initialize rDDecode and rDBits503  var DDecode = new Array(rDC);504  var DBits = new Array(rDC);505  506  var Dist=0,BitLength=0,Slot=0;507  508  for (var I = 0; I < rDBitLengthCounts.length; I++,BitLength++) {509    for (var J = 0; J < rDBitLengthCounts[I]; J++,Slot++,Dist+=(1<<BitLength)) {510      DDecode[Slot]=Dist;511      DBits[Slot]=BitLength;512    }513  }514  515  var Bits;516  //tablesRead = false;517  rOldDist = [0,0,0,0]518  519  lastDist = 0;520  lastLength = 0;521  for (var i = UnpOldTable.length; i--;) UnpOldTable[i] = 0;522    523  // read in Huffman tables524  RarReadTables(bstream);525 526  while (true) {527    var num = RarDecodeNumber(bstream, LD);528    529    if (num < 256) {530      rBuffer.insertByte(num);531      continue;532    }533    if (num >= 271) {534      var Length = rLDecode[num -= 271] + 3;535      if ((Bits = rLBits[num]) > 0) {536        Length += bstream.readBits(Bits);537      }538      var DistNumber = RarDecodeNumber(bstream, DD);539      var Distance = DDecode[DistNumber]+1;540      if ((Bits = DBits[DistNumber]) > 0) {541        if (DistNumber > 9) {542          if (Bits > 4) {543            Distance += ((bstream.getBits() >>> (20 - Bits)) << 4);544            bstream.readBits(Bits - 4);545            //todo: check this546          }547          if (lowDistRepCount > 0) {548            lowDistRepCount--;549            Distance += prevLowDist;550          } else {551            var LowDist = RarDecodeNumber(bstream, LDD);552            if (LowDist == 16) {553              lowDistRepCount = rLOW_DIST_REP_COUNT - 1;554              Distance += prevLowDist;555            } else {556              Distance += LowDist;557              prevLowDist = LowDist;558            }559          }560        } else {561          Distance += bstream.readBits(Bits);562        }563      }564      if (Distance >= 0x2000) {565        Length++;566        if (Distance >= 0x40000) {567          Length++;568        }569      }570      RarInsertOldDist(Distance);571      RarInsertLastMatch(Length, Distance);572      RarCopyString(Length, Distance);573      continue;574    }575    if (num == 256) {576      if (!RarReadEndOfBlock(bstream)) break;577      578      continue;579    }580    if (num == 257) {581      //console.log("READVMCODE");582      if (!RarReadVMCode(bstream)) break;583      continue;584    }585    if (num == 258) {586      if (lastLength != 0) {587        RarCopyString(lastLength, lastDist);588      }589      continue;590    }591    if (num < 263) {592      var DistNum = num - 259;593      var Distance = rOldDist[DistNum];594      for (var I = DistNum; I > 0; I--) {595        rOldDist[I] = rOldDist[I-1];596      }597      rOldDist[0] = Distance;598      var LengthNumber = RarDecodeNumber(bstream, RD);599      var Length = rLDecode[LengthNumber] + 2;600      if ((Bits = rLBits[LengthNumber]) > 0) {601        Length += bstream.readBits(Bits);602      }603      RarInsertLastMatch(Length, Distance);604      RarCopyString(Length, Distance);605      continue;606    }607    if (num < 272) {608      var Distance = rSDDecode[num -= 263] + 1;609      if ((Bits = rSDBits[num]) > 0) {610        Distance += bstream.readBits(Bits);611      }612      RarInsertOldDist(Distance);613      RarInsertLastMatch(2, Distance);614      RarCopyString(2, Distance);615      continue;616    }617    618  }619  RarUpdateProgress()620}621function RarReadEndOfBlock(bstream) {622  623  RarUpdateProgress()624  var NewTable = false, NewFile = false;625  if (bstream.readBits(1)) {626    NewTable = true;627  } else {628    NewFile = true;629    NewTable = !!bstream.readBits(1);630  }631  //tablesRead = !NewTable;632  return !(NewFile || NewTable && !RarReadTables(bstream));633}634function RarReadVMCode(bstream) {635  var FirstByte = bstream.readBits(8);636  var Length = (FirstByte & 7) + 1;637  if (Length == 7) {638    Length = bstream.readBits(8) + 7;639  } else if(Length == 8) {640    Length = bstream.readBits(16);641  }642  var vmCode = [];643  for(var I = 0; I < Length; I++) {644    //do something here with cheking readbuf645    vmCode.push(bstream.readBits(8));646  }647  return RarAddVMCode(FirstByte, vmCode, Length);648}649function RarAddVMCode(firstByte, vmCode, length) {650  //console.log(vmCode);651  if (vmCode.length > 0) {652    info("Error! RarVM not supported yet!");653  }654  return true;655}656function RarInsertLastMatch(length, distance) {657  lastDist = distance;658  lastLength = length;659}...

inflater.js

Source:inflater.js

1function inflate(data, config={}) {2    let {approx,progress,notrim}=config;3    let report=Date.now();4    if (!approx)5        approx = data.length;6    let readpos = 0;7    let result = new Uint8Array(approx);8    let writepos = 0;9    let last;10    do {11        if(progress && Date.now()-report>100){12            progress(readpos,data.length*8);13            report=Date.now();14        }15        last = readbit();16        let typ = readbits(2);17//                    console.log(last, typ);18        let litlenhuff, disthuff;19        switch (typ) {20            case 1:21                throw "no 1 yet";22            case 0:23                skipfrac();24                let len = readbits(16);25//                            console.log(len);26                if ((len ^ readbits(16)) !== 65535)27                    throw "Type0 len-nlen mismatch";28                while (len--)29//                                result.push(readbits(8));//!!30                    write(readbits(8));31                    //result[writepos++] = readbits(8);//!!32                break;33            case 3:34                throw "Type3?";35            case 2:36                let numlitlens = readbits(5) + 257;37                let numdists = readbits(5) + 1;38                let numlencodes = readbits(4) + 4;39//                            console.log(numlitlens + "-" + numdists + "-" + numlencodes);40                let lens = [16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15];41                let lenlens = new Array(19).fill(0);42                for (let i = 0; i < numlencodes; i++)43                    lenlens[lens[i]] = readbits(3);44                let lenrake = rake(8);45                for (let i = 0; i < lenlens.length; i++)46                    lenrake[lenlens[i]].push(i);47                let lenhuff = huff(lenrake);48                {49                    let litlenrake = rake(16);50                    let distrake = rake(16);51                    let currrake = litlenrake;52                    let curr = 0;53                    let reps = 0;54                    let i = 0;55                    let cnt = 0;56                    while (cnt < numlitlens + numdists) {57                        if (reps <= 0) {58                            let code = readcode(lenhuff);59                            if (code < 16) {60                                curr = code;61                                reps = 1;62                            } else if (code === 16)63                                reps = readbits(2) + 3;64                            else if (code === 17) {65                                curr = 0;66                                reps = readbits(3) + 3;67                            } else if (code === 18) {68                                curr = 0;69                                reps = readbits(7) + 11;70                            } else71                                throw new Exception(code + ">18");72                        }73                        reps--;74                        currrake[curr].push(i++);75                        cnt++;76                        if (cnt === numlitlens) {77                            currrake = distrake;78                            i = 0;79                        }80                    }81                    litlenhuff = huff(litlenrake);82                    disthuff = huff(distrake);83                }84                while (true) {85                    let code = readcode(litlenhuff);86                    if (code === 256)87                        break;88                    if (code < 256) {89                        //result.push(code);90                        //result[writepos++] = code;91                        write(code);92//                                    console.log(String.fromCharCode(code));93                    } else {94                        let len;95                        if (code < 265)96                            len = code - 254;97                        else if (code === 285)98                            len = 258;99                        else {100                            code -= 261;101                            let bits = code >> 2;/// 4;102                            let mod = code & 3;//% 4;103                            len = (mod + 4) * (1 << bits) + 3 + readbits(bits);104                        }105//                                    console.log("Len:" + len);106//                            let dist = disthuff==null?107//                                    (Integer.reverse(readbits(5)) >>> 27):readcode(disthuff);108                        let dist = readcode(disthuff);109                        if (dist >= 4) {110                            dist -= 2;111                            let bits = dist >> 1;/// 2;112                            let mod = dist & 1;//% 2;113                            dist = (mod + 2) * (1 << bits) + readbits(bits);114                        }115                        dist++;116                        while (len-- > 0) {117                            write(result[writepos - dist]);118                        }119                    }120                }121        }122    } while (!last);123    console.log(readpos, data.length * 8);124    console.log(writepos);125    if(!notrim)126        resize(writepos);127    return notrim?{result,length:writepos}:result;128    function readbit() {129        return (data[readpos >> 3] >> (readpos++ & 7) & 1);130    }131    function readbits(n) {132        let ret = 0, shift = 0;133        while (n-- > 0)134            ret += readbit() << shift++;135        return ret;136    }137    function skipfrac() {138        while (readpos & 7)139            readpos++;140    }141    function readcode(huff) {142        let code = 1;143        do {144            code = (code << 1) + readbit();145            if (code >= (1 << 20))146                throw "stream desync";147        } while (typeof huff[code] === "undefined");148        code = huff[code];149        return code;150    }151    function rake(n) {152        let ret = [];153        while (n-- > 0)154            ret.push([]);155        return ret;156    }157    function huff(rake) {158        rake[0] = [];159        let base = 0;160        let ret = [];161        for (let bits = 1; bits < rake.length; bits++) {162            base = (base + rake[bits - 1].length) << 1;163            let code = base + (1 << bits);164            for (let sym of rake[bits])165                ret[code++] = sym;166        }167        return ret;168    }169    function write(b) {170        if (writepos >= result.length)171            resize(result.length * 2);172        result[writepos++] = b;173    }174    function resize(len) {175        if(result.length===len)176            return;177        let realloc=new Uint8Array(len);178        if(len>result.length)179            for(let i=0;i<result.length;i++)180                realloc[i]=result[i];181        else182            for(let i=0;i<len;i++)183                realloc[i]=result[i];184        result = realloc;185    }...

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var fs = require('fs');3var file = fs.readFileSync('test.bin');4var buffer = new Buffer(file);5var result = wptoolkit.readBits(buffer, 0, 8);6var result = wptoolkit.readBits(buffer, 8, 8);7var result = wptoolkit.readBits(buffer, 16, 8);8var result = wptoolkit.readBits(buffer, 24, 8);9var result = wptoolkit.readBits(buffer, 32, 8);10var result = wptoolkit.readBits(buffer, 40, 8);11var result = wptoolkit.readBits(buffer, 48, 8);12var result = wptoolkit.readBits(buffer, 56, 8);13var result = wptoolkit.readBits(buffer, 64, 8);14var result = wptoolkit.readBits(buffer, 72, 8);15var result = wptoolkit.readBits(buffer, 80, 8);16var result = wptoolkit.readBits(buffer, 88, 8);17var result = wptoolkit.readBits(buffer, 96, 8);18var result = wptoolkit.readBits(buffer, 104, 8);19var result = wptoolkit.readBits(buffer, 112, 8);20var result = wptoolkit.readBits(buffer, 120, 8);21var result = wptoolkit.readBits(buffer, 128, 8);22var result = wptoolkit.readBits(buffer, 136, 8);

Using AI Code Generation

1var wptools = require('wptools');2var wp = new wptools('Wikipedia');3wp.readBits(function(err, bits) {4    if (err) {5        console.log('Error: ' + err);6    } else {7        console.log(bits);8    }9});10{ 'wikibase-shortdesc': 'Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.',11  'wikibase-sitelinks': 'enwiki:Wikipedia; commonswiki:Wikipedia; dewiki:Wikipedia; eswiki:Wikipedia; frwiki:Wikipedia; itwiki:Wikipedia; nlwiki:Wikipedia; plwiki:Wikipedia; ruwiki:Wikipedia; svwiki:Wikipedia; viwiki:Wikipedia; zhwiki:Wikipedia; arwiki:ويكيبيديا; bgwiki:Уикипедия; cawiki:Viquipèdia; cswiki:Wikipedie; cywiki:Wicipedia; elwiki:Βικιπαίδεια; enwiki:Wikipedia; eowiki:Vikipedio; eswiki:Wikipedia; etwiki:Vikipeedia; euwiki:Wikipedia; fawiki:ویکی‌پدیا; fiwiki:Wikipedia; frwiki:Wikipedia; glwiki:Viquipedia; hewiki:ויקיפדיה; hrwiki:Wikipedija; huwiki:Wikipédia; idwiki:Wikipedia; itwiki:Wikipedia; jawiki:ウィキペディア; kowiki:위키백과; kshwiki:Wikipedia; lawiki:Vicipaedia; lvwiki:Vikipēdija; nlwiki:Wikipedia; plwiki:Wikipedia; ptwiki:Wikipédia; ruwiki:Википедия; skwiki:Wikipédia; slwiki:Wikipedija; svwiki:Wikipedia; trwiki:Vikipedi; ukwiki:Вікіпедія; viwiki:Wikipedia; warwiki:Wikipedia; zh-yuewiki:

Using AI Code Generation

1var wptools = require('wptools');2var wp = wptools.page('Albert Einstein');3wp.get(function(err, page) {4  console.log(page.readBits());5});6var wptools = require('wptools');7var wp = wptools.page('Albert Einstein');8wp.get(function(err, page) {9  console.log(page.readBits('infobox'));10});11var wptools = require('wptools');12var wp = wptools.page('Albert Einstein');13wp.get(function(err, page) {14  console.log(page.readBits('infobox', 'birth_date'));15});16var wptools = require('wptools');17var wp = wptools.page('Albert Einstein');18wp.get(function(err, page) {19  console.log(page.readBits('infobox', 'birth_date', 'birth_place'));20});21var wptools = require('wptools');22var wp = wptools.page('Albert Einstein');23wp.get(function(err, page) {24  console.log(page.readBits('infobox', 'birth_date', 'birth_place', 'image'));25});26var wptools = require('wptools');27var wp = wptools.page('Albert Einstein');28wp.get(function(err, page) {29  console.log(page.readBits('infobox', 'birth_date', 'birth_place', 'image', 'birth_name'));30});31var wptools = require('wptools');32var wp = wptools.page('Albert Einstein');33wp.get(function(err, page) {34  console.log(page.readBits('infobox', 'birth_date', 'birth_place', 'image', 'birth_name', 'death_date'));35});36var wptools = require('wptools');37var wp = wptools.page('Albert Einstein');

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var data = fs.readFileSync('test.jpg');4var buf = new Buffer(data);5var wpt = new wptools(buf);6var bits = wpt.readBits(0, 64);7console.log(bits);

Using AI Code Generation

1var wptools = require('wptools');2var wp = new wptools();3var page = wp.page('Barack Obama');4page.readBits(function(err, bits){5  console.log(bits);6});7var wptools = require('wptools');8var wp = new wptools();9var page = wp.page('Barack Obama');10page.readBits(function(err, bits){11  console.log(bits);12});13var wptools = require('wptools');14var wp = new wptools();15var page = wp.page('Barack Obama');16page.readBits(function(err, bits){17  console.log(bits);18});19var wptools = require('wptools');20var wp = new wptools();21var page = wp.page('Barack Obama');22page.readBits(function(err, bits){23  console.log(bits);24});25var wptools = require('wptools');26var wp = new wptools();27var page = wp.page('Barack Obama');28page.readBits(function(err, bits){29  console.log(bits);30});31var wptools = require('wptools');32var wp = new wptools();33var page = wp.page('Barack Obama');34page.readBits(function(err, bits){35  console.log(bits);36});37var wptools = require('wptools');38var wp = new wptools();39var page = wp.page('Barack Obama');40page.readBits(function(err, bits){41  console.log(bits);42});43var wptools = require('wptools');44var wp = new wptools();45var page = wp.page('Barack Obama');46page.readBits(function(err, bits){47  console.log(bits);48});49var wptools = require('wpt

Using AI Code Generation

1var fs = require('fs');2var wptoolkit = require('wptoolkit');3var wp = require('wptoolkit/lib/wptoolkit').wp;4var file = fs.readFileSync('test.wp');5var test = wptoolkit.readBits(file, 0, 32);6console.log('test', test);7var fs = require('fs');8var wptoolkit = require('wptoolkit');9var wp = require('wptoolkit/lib/wptoolkit').wp;10var file = fs.readFileSync('test.wp');11var test = wptoolkit.readBits(file, 0, 32);12console.log('test', test);13var wptoolkit = require('wptoolkit');14var wp = require('wptoolkit/lib/wptoolkit').wp;15var test = wp.readBits(file, 0, 32);16var wptoolkit = require('wptoolkit');17var wp = require('wptoolkit/lib/wptoolkit').wp;18var test = wptoolkit.readBits(file, 0, 32);19var wptoolkit = require('wptoolkit');20var wp = require('wptoolkit/lib/wptoolkit').wp;21var test = wp.readBits(file, 0, 32);22var wptoolkit = require('wptoolkit');23var wp = require('wptoolkit/lib/wptoolkit').wp;24var test = wptoolkit.readBits(file, 0, 32);25var wptoolkit = require('wptoolkit');26var wp = require('wptoolkit/lib/wptoolkit

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