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How to use PDFNodeStreamRangeReader method in wpt

Best JavaScript code snippet using wpt

node_stream.js

Source:node_stream.js

...55    }56  }, {57    key: 'getRangeReader',58    value: function getRangeReader(start, end) {59      var rangeReader = this.isFsUrl ? new PDFNodeStreamFsRangeReader(this, start, end) : new PDFNodeStreamRangeReader(this, start, end);60      this._rangeRequestReaders.push(rangeReader);61      return rangeReader;62    }63  }, {64    key: 'cancelAllRequests',65    value: function cancelAllRequests(reason) {66      if (this._fullRequest) {67        this._fullRequest.cancel(reason);68      }69      var readers = this._rangeRequestReaders.slice(0);70      readers.forEach(function (reader) {71        reader.cancel(reason);72      });73    }74  }]);75  return PDFNodeStream;76}();77var BaseFullReader = function () {78  function BaseFullReader(stream) {79    _classCallCheck(this, BaseFullReader);80    this._url = stream.url;81    this._done = false;82    this._errored = false;83    this._reason = null;84    this.onProgress = null;85    var source = stream.source;86    this._contentLength = source.length;87    this._loaded = 0;88    this._filename = null;89    this._disableRange = source.disableRange || false;90    this._rangeChunkSize = source.rangeChunkSize;91    if (!this._rangeChunkSize && !this._disableRange) {92      this._disableRange = true;93    }94    this._isStreamingSupported = !source.disableStream;95    this._isRangeSupported = !source.disableRange;96    this._readableStream = null;97    this._readCapability = (0, _util.createPromiseCapability)();98    this._headersCapability = (0, _util.createPromiseCapability)();99  }100  _createClass(BaseFullReader, [{101    key: 'read',102    value: function read() {103      var _this = this;104      return this._readCapability.promise.then(function () {105        if (_this._done) {106          return Promise.resolve({107            value: undefined,108            done: true109          });110        }111        if (_this._errored) {112          return Promise.reject(_this._reason);113        }114        var chunk = _this._readableStream.read();115        if (chunk === null) {116          _this._readCapability = (0, _util.createPromiseCapability)();117          return _this.read();118        }119        _this._loaded += chunk.length;120        if (_this.onProgress) {121          _this.onProgress({122            loaded: _this._loaded,123            total: _this._contentLength124          });125        }126        var buffer = new Uint8Array(chunk).buffer;127        return Promise.resolve({128          value: buffer,129          done: false130        });131      });132    }133  }, {134    key: 'cancel',135    value: function cancel(reason) {136      if (!this._readableStream) {137        this._error(reason);138        return;139      }140      this._readableStream.destroy(reason);141    }142  }, {143    key: '_error',144    value: function _error(reason) {145      this._errored = true;146      this._reason = reason;147      this._readCapability.resolve();148    }149  }, {150    key: '_setReadableStream',151    value: function _setReadableStream(readableStream) {152      var _this2 = this;153      this._readableStream = readableStream;154      readableStream.on('readable', function () {155        _this2._readCapability.resolve();156      });157      readableStream.on('end', function () {158        readableStream.destroy();159        _this2._done = true;160        _this2._readCapability.resolve();161      });162      readableStream.on('error', function (reason) {163        _this2._error(reason);164      });165      if (!this._isStreamingSupported && this._isRangeSupported) {166        this._error(new _util.AbortException('streaming is disabled'));167      }168      if (this._errored) {169        this._readableStream.destroy(this._reason);170      }171    }172  }, {173    key: 'headersReady',174    get: function get() {175      return this._headersCapability.promise;176    }177  }, {178    key: 'filename',179    get: function get() {180      return this._filename;181    }182  }, {183    key: 'contentLength',184    get: function get() {185      return this._contentLength;186    }187  }, {188    key: 'isRangeSupported',189    get: function get() {190      return this._isRangeSupported;191    }192  }, {193    key: 'isStreamingSupported',194    get: function get() {195      return this._isStreamingSupported;196    }197  }]);198  return BaseFullReader;199}();200var BaseRangeReader = function () {201  function BaseRangeReader(stream) {202    _classCallCheck(this, BaseRangeReader);203    this._url = stream.url;204    this._done = false;205    this._errored = false;206    this._reason = null;207    this.onProgress = null;208    this._loaded = 0;209    this._readableStream = null;210    this._readCapability = (0, _util.createPromiseCapability)();211    var source = stream.source;212    this._isStreamingSupported = !source.disableStream;213  }214  _createClass(BaseRangeReader, [{215    key: 'read',216    value: function read() {217      var _this3 = this;218      return this._readCapability.promise.then(function () {219        if (_this3._done) {220          return Promise.resolve({221            value: undefined,222            done: true223          });224        }225        if (_this3._errored) {226          return Promise.reject(_this3._reason);227        }228        var chunk = _this3._readableStream.read();229        if (chunk === null) {230          _this3._readCapability = (0, _util.createPromiseCapability)();231          return _this3.read();232        }233        _this3._loaded += chunk.length;234        if (_this3.onProgress) {235          _this3.onProgress({ loaded: _this3._loaded });236        }237        var buffer = new Uint8Array(chunk).buffer;238        return Promise.resolve({239          value: buffer,240          done: false241        });242      });243    }244  }, {245    key: 'cancel',246    value: function cancel(reason) {247      if (!this._readableStream) {248        this._error(reason);249        return;250      }251      this._readableStream.destroy(reason);252    }253  }, {254    key: '_error',255    value: function _error(reason) {256      this._errored = true;257      this._reason = reason;258      this._readCapability.resolve();259    }260  }, {261    key: '_setReadableStream',262    value: function _setReadableStream(readableStream) {263      var _this4 = this;264      this._readableStream = readableStream;265      readableStream.on('readable', function () {266        _this4._readCapability.resolve();267      });268      readableStream.on('end', function () {269        readableStream.destroy();270        _this4._done = true;271        _this4._readCapability.resolve();272      });273      readableStream.on('error', function (reason) {274        _this4._error(reason);275      });276      if (this._errored) {277        this._readableStream.destroy(this._reason);278      }279    }280  }, {281    key: 'isStreamingSupported',282    get: function get() {283      return this._isStreamingSupported;284    }285  }]);286  return BaseRangeReader;287}();288function createRequestOptions(url, headers) {289  return {290    protocol: url.protocol,291    auth: url.auth,292    host: url.hostname,293    port: url.port,294    path: url.path,295    method: 'GET',296    headers: headers297  };298}299var PDFNodeStreamFullReader = function (_BaseFullReader) {300  _inherits(PDFNodeStreamFullReader, _BaseFullReader);301  function PDFNodeStreamFullReader(stream) {302    _classCallCheck(this, PDFNodeStreamFullReader);303    var _this5 = _possibleConstructorReturn(this, (PDFNodeStreamFullReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamFullReader)).call(this, stream));304    var handleResponse = function handleResponse(response) {305      _this5._headersCapability.resolve();306      _this5._setReadableStream(response);307      var getResponseHeader = function getResponseHeader(name) {308        return _this5._readableStream.headers[name.toLowerCase()];309      };310      var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({311        getResponseHeader: getResponseHeader,312        isHttp: stream.isHttp,313        rangeChunkSize: _this5._rangeChunkSize,314        disableRange: _this5._disableRange315      }),316          allowRangeRequests = _validateRangeRequest.allowRangeRequests,317          suggestedLength = _validateRangeRequest.suggestedLength;318      _this5._isRangeSupported = allowRangeRequests;319      _this5._contentLength = suggestedLength || _this5._contentLength;320      _this5._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);321    };322    _this5._request = null;323    if (_this5._url.protocol === 'http:') {324      _this5._request = http.request(createRequestOptions(_this5._url, stream.httpHeaders), handleResponse);325    } else {326      _this5._request = https.request(createRequestOptions(_this5._url, stream.httpHeaders), handleResponse);327    }328    _this5._request.on('error', function (reason) {329      _this5._errored = true;330      _this5._reason = reason;331      _this5._headersCapability.reject(reason);332    });333    _this5._request.end();334    return _this5;335  }336  return PDFNodeStreamFullReader;337}(BaseFullReader);338var PDFNodeStreamRangeReader = function (_BaseRangeReader) {339  _inherits(PDFNodeStreamRangeReader, _BaseRangeReader);340  function PDFNodeStreamRangeReader(stream, start, end) {341    _classCallCheck(this, PDFNodeStreamRangeReader);342    var _this6 = _possibleConstructorReturn(this, (PDFNodeStreamRangeReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamRangeReader)).call(this, stream));343    _this6._httpHeaders = {};344    for (var property in stream.httpHeaders) {345      var value = stream.httpHeaders[property];346      if (typeof value === 'undefined') {347        continue;348      }349      _this6._httpHeaders[property] = value;350    }351    _this6._httpHeaders['Range'] = 'bytes=' + start + '-' + (end - 1);352    _this6._request = null;353    if (_this6._url.protocol === 'http:') {354      _this6._request = http.request(createRequestOptions(_this6._url, _this6._httpHeaders), function (response) {...

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;2var PDFTextExtractor = require('wptextextractor').PDFTextExtractor;3var pdfTextExtractor = new PDFTextExtractor();4pdfTextExtractor.extract('test.pdf', new PDFNodeStreamRangeReader(), function(err, text) {5    console.log(text);6});7I'm not sure if I understand your question correctly. You are trying to use the PDFNodeStreamRangeReader in a project that is not a node project? Or are you trying to use it in a node project that is not using node package manager (npm)?

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;2var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');3pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {4    console.log(data);5});6var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;7var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');8pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {9    console.log(data);10});11var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;12var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');13pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {14    console.log(data);15});16var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;17var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');18pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {19    console.log(data);20});21var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;22var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');23pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {24    console.log(data);25});26var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;27var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');28pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {29    console.log(data);30});

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('pdfjs-dist/lib/display/node_stream_range_reader.js').PDFNodeStreamRangeReader;2var PDFJS = require('pdfjs-dist');3PDFJS.PDFJS.disableWorker = true;4var fs = require('fs');5var pdf = fs.readFileSync('test.pdf');6var pdfStream = new PDFNodeStreamRangeReader({7});8PDFJS.getDocument(pdfStream).then(function (pdf) {9  console.log('PDF loaded');10  pdf.getPage(1).then(function (page) {11    console.log('Page loaded');12    var scale = 1.5;13    var viewport = page.getViewport(scale);14    console.log('Page width: ' + viewport.width);15    console.log('Page height: ' + viewport.height);16  });17});

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('pdfjs-dist/lib/display/node_stream_range_reader.js');2var PDFJS = require('pdfjs-dist');3var pdf = null;4var loadingTask = PDFJS.getDocument(url);5loadingTask.promise.then(function (pdfDocument) {6  pdf = pdfDocument;7  return pdf.getPage(1);8}).then(function (page) {9  var viewport = page.getViewport(1.0);10  var canvas = document.createElement('canvas');11  var context = canvas.getContext('2d');12  canvas.height = viewport.height;13  canvas.width = viewport.width;14  var renderContext = {15  };16  var renderTask = page.render(renderContext);17  return renderTask.promise;18}).then(function () {19  console.log('Page rendered');20});21PDFJS.GlobalWorkerOptions.workerSrc = 'node_modules/pdfjs-dist/build/pdf.worker.js';22'use strict';23var _util = require('../shared/util');24var _network_utils = require('./network_utils');25var _stream = require('./stream');26var _display_utils = require('./display_utils');27var PDFNodeStreamRangeReader = function () {28  function PDFNodeStreamRangeReader(_ref) {29        rangeChunkSize = _ref.rangeChunkSize;30    (0, _util.assert)(url instanceof _network_utils.URL, 'PDFNodeStreamRangeReader can only read from network URLs.');31    this._url = url;32    this._rangeChunkSize = rangeChunkSize;33    this._fullRequestReader = null;34    this._rangeRequestReaders = [];35  }36  PDFNodeStreamRangeReader.prototype = {37    _onRangeRequestReaderClosed: function PDFNodeStreamRangeReader_onRangeRequestReaderClosed(reader) {38      var i = this._rangeRequestReaders.indexOf(reader);39      if (i >= 0) {40        this._rangeRequestReaders.splice(i, 1);41      }42    },43    get headersReady() {44      return this._fullRequestReader ? this._fullRequestReader.headersReady : Promise.reject(new Error('Reader is not initialized yet.'));45    },46    get contentLength() {

Using AI Code Generation

1var fs = require('fs');2var PDFNodeStreamRangeReader = require('wptext').PDFNodeStreamRangeReader;3var PDFParser = require('wptext').PDFParser;4var PDFText = require('wptext').PDFText;5var PDFTextStream = require('wptext').PDFTextStream;6var PDFTextItem = require('wptext').PDFTextItem;7var PDFTextChar = require('wptext').PDFTextChar;8var PDFTextWord = require('wptext').PDFTextWord;9var PDFTextLine = require('wptext').PDFTextLine;10var PDFTextBlock = require('wptext').PDFTextBlock;11var PDFTextParagraph = require('wptext').PDFTextParagraph;12var PDFTextPage = require('wptext').PDFTextPage;13var PDFTextDocument = require('wptext').PDFTextDocument;14var PDFTextStripper = require('wptext').PDFTextStripper;15var PDFTextStripperByArea = require('wptext').PDFTextStripperByArea;16var PDFText2XML = require('wptext').PDFText2XML;17var PDFText2HTML = require('wptext').PDFText2HTML;18var PDFText2SVG = require('wptext').PDFText2SVG;19var PDFText2XHTML = require('wptext').PDFText2XHTML;20var PDFText2XHTMLImageHandler = require('wptext').PDFText2XHTMLImageHandler;21var PDFText2XHTMLImageHandlerBase64 = require('wptext').PDFText2XHTMLImageHandlerBase64;22var PDFText2XHTMLImageHandlerURI = require('wptext').PDFText2XHTMLImageHandlerURI;23var textStripper = new PDFTextStripper();24var text2xml = new PDFText2XML();25var text2html = new PDFText2HTML();26var text2xhtml = new PDFText2XHTML();27var text2svg = new PDFText2SVG();28var pdfParser = new PDFParser();29pdfParser.on("pdfParser_dataError", errData => console.error(errData.parserError) );30pdfParser.on("pdfParser_dataReady", pdfData => {31    var pdfText = new PDFText();32    pdfText.loadPDF(pdfData);

Using AI Code Generation

1var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";2var textExtractor = require("wptextextractor");3textExtractor.pdfToText(pdfPath, function(err, text) {4    console.log(text);5});6var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";7var textExtractor = require("wptextextractor");8textExtractor.pdfToText(pdfPath, function(err, text) {9    console.log(text);10}, {11});12var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";13var textExtractor = require("wptextextractor");14textExtractor.pdfToText(pdfPath, function(err, text) {15    console.log(text);16}, {17    imageProcessFunction: function(image, callback) {18        callback(null, image);19    }20});21var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";22var textExtractor = require("wptextextractor");23textExtractor.pdfToText(pdfPath, function(err, text) {24    console.log(text);25}, {26    imageProcessFunction: function(image, callback) {27        callback(null, image);28    },29    imageProcessFunction: function(image, callback) {30        callback(null, image);31    }32});

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