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How to use buildHuffmanTable method in wpt

Best JavaScript code snippet using wpt

rawinflate_stream.js

Source:rawinflate_stream.js

...231      (i <= 255) ? 9 :232      (i <= 279) ? 7 :233      8;234  }235  return buildHuffmanTable(lengths);236})());237/**238 * fixed huffman distance code table239 * @const240 * @type {!Array}241 */242Zlib.RawInflateStream.FixedDistanceTable = (function(table) {243  return table;244})((function() {245  var lengths = new (USE_TYPEDARRAY ? Uint8Array : Array)(30);246  var i, il;247  for (i = 0, il = lengths.length; i < il; ++i) {248    lengths[i] = 5;249  }250  return buildHuffmanTable(lengths);251})());252/**253 * parse deflated block.254 */255Zlib.RawInflateStream.prototype.readBlockHeader = function() {256  /** @type {number} header */257  var hdr;258  this.status = Zlib.RawInflateStream.Status.BLOCK_HEADER_START;259  this.save_();260  if ((hdr = this.readBits(3)) < 0) {261    this.restore_();262    return -1;263  }264  // BFINAL265  if (hdr & 0x1) {266    this.bfinal = true;267  }268  // BTYPE269  hdr >>>= 1;270  switch (hdr) {271    case 0: // uncompressed272      this.currentBlockType = Zlib.RawInflateStream.BlockType.UNCOMPRESSED;273      break;274    case 1: // fixed huffman275      this.currentBlockType = Zlib.RawInflateStream.BlockType.FIXED;276      break;277    case 2: // dynamic huffman278      this.currentBlockType = Zlib.RawInflateStream.BlockType.DYNAMIC;279      break;280    default: // reserved or other281      throw new Error('unknown BTYPE: ' + hdr);282  }283  this.status = Zlib.RawInflateStream.Status.BLOCK_HEADER_END;284};285/**286 * read inflate bits287 * @param {number} length bits length.288 * @return {number} read bits.289 */290Zlib.RawInflateStream.prototype.readBits = function(length) {291  var bitsbuf = this.bitsbuf;292  var bitsbuflen = this.bitsbuflen;293  var input = this.input;294  var ip = this.ip;295  /** @type {number} input and output byte. */296  var octet;297  // not enough buffer298  while (bitsbuflen < length) {299    // input byte300    if (input.length <= ip) {301      return -1;302    }303    octet = input[ip++];304    // concat octet305    bitsbuf |= octet << bitsbuflen;306    bitsbuflen += 8;307  }308  // output byte309  octet = bitsbuf & /* MASK */ ((1 << length) - 1);310  bitsbuf >>>= length;311  bitsbuflen -= length;312  this.bitsbuf = bitsbuf;313  this.bitsbuflen = bitsbuflen;314  this.ip = ip;315  return octet;316};317/**318 * read huffman code using table319 * @param {Array} table huffman code table.320 * @return {number} huffman code.321 */322Zlib.RawInflateStream.prototype.readCodeByTable = function(table) {323  var bitsbuf = this.bitsbuf;324  var bitsbuflen = this.bitsbuflen;325  var input = this.input;326  var ip = this.ip;327  /** @type {!(Array|Uint8Array)} huffman code table */328  var codeTable = table[0];329  /** @type {number} */330  var maxCodeLength = table[1];331  /** @type {number} input byte */332  var octet;333  /** @type {number} code length & code (16bit, 16bit) */334  var codeWithLength;335  /** @type {number} code bits length */336  var codeLength;337  // not enough buffer338  while (bitsbuflen < maxCodeLength) {339    if (input.length <= ip) {340      return -1;341    }342    octet = input[ip++];343    bitsbuf |= octet << bitsbuflen;344    bitsbuflen += 8;345  }346  // read max length347  codeWithLength = codeTable[bitsbuf & ((1 << maxCodeLength) - 1)];348  codeLength = codeWithLength >>> 16;349  if (codeLength > bitsbuflen) {350    throw new Error('invalid code length: ' + codeLength);351  }352  this.bitsbuf = bitsbuf >> codeLength;353  this.bitsbuflen = bitsbuflen - codeLength;354  this.ip = ip;355  return codeWithLength & 0xffff;356};357/**358 * read uncompressed block header359 */360Zlib.RawInflateStream.prototype.readUncompressedBlockHeader = function() {361  /** @type {number} block length */362  var len;363  /** @type {number} number for check block length */364  var nlen;365  var input = this.input;366  var ip = this.ip;367  this.status = Zlib.RawInflateStream.Status.BLOCK_BODY_START;368  if (ip + 4 >= input.length) {369    return -1;370  }371  len = input[ip++] | (input[ip++] << 8);372  nlen = input[ip++] | (input[ip++] << 8);373  // check len & nlen374  if (len === ~nlen) {375    throw new Error('invalid uncompressed block header: length verify');376  }377  // skip buffered header bits378  this.bitsbuf = 0;379  this.bitsbuflen = 0;380  this.ip = ip;381  this.blockLength = len;382  this.status = Zlib.RawInflateStream.Status.BLOCK_BODY_END;383};384/**385 * parse uncompressed block.386 */387Zlib.RawInflateStream.prototype.parseUncompressedBlock = function() {388  var input = this.input;389  var ip = this.ip;390  var output = this.output;391  var op = this.op;392  var len = this.blockLength;393  this.status = Zlib.RawInflateStream.Status.DECODE_BLOCK_START;394  // copy395  // XXX: ã¨ããããç´ ç´ã«ã³ãã¼396  while (len--) {397    if (op === output.length) {398      output = this.expandBuffer({fixRatio: 2});399    }400    // not enough input buffer401    if (ip >= input.length) {402      this.ip = ip;403      this.op = op;404      this.blockLength = len + 1; // ã³ãã¼ãã¦ãªãã®ã§æ»ã405      return -1;406    }407    output[op++] = input[ip++];408  }409  if (len < 0) {410    this.status = Zlib.RawInflateStream.Status.DECODE_BLOCK_END;411  }412  this.ip = ip;413  this.op = op;414  return 0;415};416/**417 * parse fixed huffman block.418 */419Zlib.RawInflateStream.prototype.parseFixedHuffmanBlock = function() {420  this.status = Zlib.RawInflateStream.Status.BLOCK_BODY_START;421  this.litlenTable = Zlib.RawInflateStream.FixedLiteralLengthTable;422  this.distTable = Zlib.RawInflateStream.FixedDistanceTable;423  this.status = Zlib.RawInflateStream.Status.BLOCK_BODY_END;424  return 0;425};426/**427 * ãªãã¸ã§ã¯ãã®ã³ã³ããã¹ããå¥ã®ããããã£ã«éé¿ãã.428 * @private429 */430Zlib.RawInflateStream.prototype.save_ = function() {431  this.ip_ = this.ip;432  this.bitsbuflen_ = this.bitsbuflen;433  this.bitsbuf_ = this.bitsbuf;434};435/**436 * å¥ã®ããããã£ã«éé¿ããã³ã³ããã¹ããå¾©åãã.437 * @private438 */439Zlib.RawInflateStream.prototype.restore_ = function() {440  this.ip = this.ip_;441  this.bitsbuflen = this.bitsbuflen_;442  this.bitsbuf = this.bitsbuf_;443};444/**445 * parse dynamic huffman block.446 */447Zlib.RawInflateStream.prototype.parseDynamicHuffmanBlock = function() {448  /** @type {number} number of literal and length codes. */449  var hlit;450  /** @type {number} number of distance codes. */451  var hdist;452  /** @type {number} number of code lengths. */453  var hclen;454  /** @type {!(Uint8Array|Array)} code lengths. */455  var codeLengths =456    new (USE_TYPEDARRAY ? Uint8Array : Array)(Zlib.RawInflateStream.Order.length);457  /** @type {!Array} code lengths table. */458  var codeLengthsTable;459  /** @type {!(Uint32Array|Array)} literal and length code lengths. */460  var litlenLengths;461  /** @type {!(Uint32Array|Array)} distance code lengths. */462  var distLengths;463  this.status = Zlib.RawInflateStream.Status.BLOCK_BODY_START;464  this.save_();465  hlit = this.readBits(5) + 257;466  hdist = this.readBits(5) + 1;467  hclen = this.readBits(4) + 4;468  if (hlit < 0 || hdist < 0 || hclen < 0) {469    this.restore_();470    return -1;471  }472  try {473    parseDynamicHuffmanBlockImpl.call(this);474  } catch(e) {475    this.restore_();476    return -1;477  }478  function parseDynamicHuffmanBlockImpl() {479    /** @type {number} */480    var bits;481    var code;482    var prev = 0;483    var repeat;484    /** @type {!(Uint8Array|Array.<number>)} code length table. */485    var lengthTable;486    /** @type {number} loop counter. */487    var i;488    /** @type {number} loop limit. */489    var il;490    // decode code lengths491    for (i = 0; i < hclen; ++i) {492      if ((bits = this.readBits(3)) < 0) {493        throw new Error('not enough input');494      }495      codeLengths[Zlib.RawInflateStream.Order[i]] = bits;496    }497    // decode length table498    codeLengthsTable = buildHuffmanTable(codeLengths);499    lengthTable = new (USE_TYPEDARRAY ? Uint8Array : Array)(hlit + hdist);500    for (i = 0, il = hlit + hdist; i < il;) {501      code = this.readCodeByTable(codeLengthsTable);502      if (code < 0) {503        throw new Error('not enough input');504      }505      switch (code) {506        case 16:507          if ((bits = this.readBits(2)) < 0) {508            throw new Error('not enough input');509          }510          repeat = 3 + bits;511          while (repeat--) { lengthTable[i++] = prev; }512          break;513        case 17:514          if ((bits = this.readBits(3)) < 0) {515            throw new Error('not enough input');516          }517          repeat = 3 + bits;518          while (repeat--) { lengthTable[i++] = 0; }519          prev = 0;520          break;521        case 18:522          if ((bits = this.readBits(7)) < 0) {523            throw new Error('not enough input');524          }525          repeat = 11 + bits;526          while (repeat--) { lengthTable[i++] = 0; }527          prev = 0;528          break;529        default:530          lengthTable[i++] = code;531          prev = code;532          break;533      }534    }535    // literal and length code536    litlenLengths = new (USE_TYPEDARRAY ? Uint8Array : Array)(hlit);537    // distance code538    distLengths = new (USE_TYPEDARRAY ? Uint8Array : Array)(hdist);539    this.litlenTable = USE_TYPEDARRAY540      ? buildHuffmanTable(lengthTable.subarray(0, hlit))541      : buildHuffmanTable(lengthTable.slice(0, hlit));542    this.distTable = USE_TYPEDARRAY543      ? buildHuffmanTable(lengthTable.subarray(hlit))544      : buildHuffmanTable(lengthTable.slice(hlit));545  }546  this.status = Zlib.RawInflateStream.Status.BLOCK_BODY_END;547  return 0;548};549/**550 * decode huffman code (dynamic)551 * @return {(number|undefined)} -1 is error.552 */553Zlib.RawInflateStream.prototype.decodeHuffman = function() {554  var output = this.output;555  var op = this.op;556  /** @type {number} huffman code. */557  var code;558  /** @type {number} table index. */...

Zlib.d.ts

Source:Zlib.d.ts

1declare function buildHuffmanTable(lengths: any): (number | any[] | Uint32Array)[];2declare class RawInflate {3    static readonly BufferType: {4        BLOCK: number;5        ADAPTIVE: number;6    };7    static readonly MaxBackwardLength = 32768;8    static readonly MaxCopyLength = 258;9    static readonly Order: any;10    static readonly LengthCodeTable: any;11    static readonly LengthExtraTable: any;12    static readonly DistCodeTable: any;13    static readonly DistExtraTable: any;14    static readonly FixedLiteralLengthTable: any;15    static readonly FixedDistanceTable: any;...

Using AI Code Generation

1var wptools = require('./wptools.js');2var fs = require('fs');3var data = fs.readFileSync('test.txt', 'utf8');4var huffmanTable = wptools.buildHuffmanTable(data);5console.log(huffmanTable);6{ T: '00',7  r: '1111' }

Using AI Code Generation

1var wptools = require('wp-tools');2var huffmanTable = wptools.buildHuffmanTable();3console.log(huffmanTable);4var wptools = require('wp-tools');5var huffmanTable = wptools.buildHuffmanTable();6console.log(huffmanTable);7var wptools = require('wp-tools');8var huffmanTable = wptools.buildHuffmanTable();9console.log(huffmanTable);10var wptools = require('wp-tools');11var huffmanTable = wptools.buildHuffmanTable();12console.log(huffmanTable);13var wptools = require('wp-tools');14var huffmanTable = wptools.buildHuffmanTable();15console.log(huffmanTable);16var wptools = require('wp-tools');17var huffmanTable = wptools.buildHuffmanTable();18console.log(huffmanTable);19var wptools = require('wp-tools');20var huffmanTable = wptools.buildHuffmanTable();21console.log(huffmanTable);22var wptools = require('wp-tools');23var huffmanTable = wptools.buildHuffmanTable();24console.log(huffmanTable);25var wptools = require('wp-tools');26var huffmanTable = wptools.buildHuffmanTable();27console.log(huffmanTable);28var wptools = require('wp-tools');29var huffmanTable = wptools.buildHuffmanTable();30console.log(huffmanTable);31var wptools = require('

Using AI Code Generation

1var wptools = require('wptools');2var buildHuffmanTable = wptools.buildHuffmanTable;3var table = buildHuffmanTable('aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz');4console.log(table);5var wptools = require('wptools');6var encode = wptools.encode;7var encoded = encode('aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz');8console.log(encoded);9var wptools = require('wptools');10var decode = wptools.decode;11var decoded = decode('001100011011101010111001001111001010101111110100100000101011100011110010111010011111001111110111101011100000101110001111001011101001111100111111011111101111100001000000110000111000101110010111100111110011111101111110111100011000001110001111001011110010111100111110011111101111110111100111000011110011111001011110010111100111110011111101111110111101011000101110101111001011110010111100111110011111101111110111101111000111110111111011111101111110111111111111000000001111111111111000000011111111111110000000111111111111100000001111111111111000000111111111111100000011111111111111000000111111111111110000001111111111111100000111111111111110000011111111111111100000111111111111111000000111111111111110000011111111111111100000111111111111111000001111111111111110000011111111111111100000111111111111111000011111111111111110000011111111111111100000111111111111111000011111111111111111000000111111111111111000011111111111111111000000111111111111111000011111111111

Using AI Code Generation

1var wptexturize = require('wptexturize');2var huffmanTable = wptexturize.buildHuffmanTable('test string');3var compressedString = wptexturize.compress('test string', huffmanTable);4var decompressedString = wptexturize.decompress(compressedString, huffmanTable);5var decompressedString = wptexturize.decompress(wptexturize.compress('test string', huffmanTable), huffmanTable);6var decompressedString = wptexturize.decompress(wptexturize.compress('test string', huffmanTable), huffmanTable) === 'test string';7var compressed = wptexturize.isCompressed('test string', huffmanTable);8var compressed = wptexturize.isCompressed(wptexturize.compress('test string', huffmanTable), huffmanTable);9var compressed = wptexturize.isCompressed(wptexturize.compress('test string', huffmanTable), huffmanTable) === true;10var compressed = wptexturize.isCompressed(wptexturize.compress('test string', huffmanTable), huffmanTable) === false;11var compressed = wptexturize.isCompressed(wptexturize.compress('test string', huffmanTable), huffmanTable) === 'test string';12var compressionRatio = wptexturize.compressionRatio('test string', huffmanTable);

Using AI Code Generation

1var wptools = require('wptools');2var huffTable = wptools.buildHuffmanTable("This is a test string");3var encodedString = wptools.encode("This is a test string", huffTable);4var decodedString = wptools.decode(encodedString, huffTable);5if(decodedString === "This is a test string") {6    console.log("Test passed");7} else {8    console.log("Test failed");9}10var wptools = require('wptools');11var huffTable = wptools.buildHuffmanTable("This is a test string");12var encodedString = wptools.encode("This is a test string", huffTable);13var decodedString = wptools.decode(encodedString, huffTable);14if(decodedString === "This is a test string") {15    console.log("Test passed");16} else {17    console.log("Test failed");18}

Using AI Code Generation

1var wptools = require('wptools');2var huffmanTable = wptools.buildHuffmanTable('test.txt');3var wptools = require('wptools');4var huffmanTable = wptools.buildHuffmanTable('test.txt');5var encoded = wptools.huffmanEncode('test.txt', huffmanTable);6var wptools = require('wptools');7var huffmanTable = wptools.buildHuffmanTable('test.txt');8var encoded = wptools.huffmanEncode('test.txt', huffmanTable);9var decoded = wptools.huffmanDecode(encoded, huffmanTable);10var wptools = require('wptools');11var huffmanTable = wptools.buildHuffmanTable('test.txt');12wptools.huffmanEncodeFile('test.txt', huffmanTable, 'encoded.txt');13var wptools = require('wptools');14var huffmanTable = wptools.buildHuffmanTable('test.txt');15wptools.huffmanEncodeFile('test.txt', huffmanTable, 'encoded.txt');16wptools.huffmanDecodeFile('encoded.txt', huffmanTable, 'decoded.txt');17var wptools = require('wptools');18var huffmanTable = wptools.buildHuffmanTable('test.txt');19wptools.huffmanEncodeStream('test.txt', huffmanTable, 'encoded.txt');20var wptools = require('wptools');21var huffmanTable = wptools.buildHuffmanTable('test.txt');22wptools.huffmanEncodeStream('test.txt', huffmanTable, 'encoded.txt');

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