Office Whisperer

"use strict"; var DataReader = require("./DataReader"); var utils = require("../utils"); function StringReader(data) { DataReader.call(this, data); } utils.inherits(StringReader, DataReader); /** * @see DataReader.byteAt */ StringReader.prototype.byteAt = function(i) { return this.data.charCodeAt(this.zero + i); }; /** * @see DataReader.lastIndexOfSignature */ StringReader.prototype.lastIndexOfSignature = function(sig) { return this.data.lastIndexOf(sig) - this.zero; }; /** * @see DataReader.readAndCheckSignature */ StringReader.prototype.readAndCheckSignature = function (sig) { var data = this.readData(4); return sig === data; }; /** * @see DataReader.readData */ StringReader.prototype.readData = function(size) { this.checkOffset(size); // this will work because the constructor applied the "& 0xff" mask. var result = this.data.slice(this.zero + this.index, this.zero + this.index + size); this.index += size; return result; }; module.exports = StringReader;