mongo-portable/.c9/metadata/workspace/browser/BinaryParser.js

Portable Pure JS MongoDB - Based on Monglodb (https://github.com/euforic/monglodb.git) by Christian Sullivan (http://RogueSynaptics.com)

{"filter":false,"title":"BinaryParser.js","tooltip":"/browser/BinaryParser.js","undoManager":{"mark":0,"position":0,"stack":[[{"start":{"row":15,"column":0},"end":{"row":399,"column":30},"action":"remove","lines":["var logger = null;","","// Shorcut for String.fromCharCode","var chr = String.fromCharCode;","","var maxBits = [];","for (var i = 0; i < 64; i++) {","    maxBits[i] = Math.pow(2, i);","}","","/**"," * BinaryParser"," * @ignore"," * "," * @module Cursor"," * @constructor"," * @since 0.0.1"," * "," * @classdesc Cursor class that maps a MongoDB-like cursor"," * "," * @param {MongoPortable} db - Additional options"," * @param {Collection} collection - The collection instance"," * @param {Object|Array|String} [selection={}] - The selection for matching documents"," * @param {Object|Array|String} [fields={}] - The fields of the document to show"," * @param {Object} [options] - Database object"," * "," * @param {Object} [options.pkFactory=null] - Object overriding the basic \"ObjectId\" primary key generation."," * "," */","class BinaryParser {","    constructor(bigEndian, allowExceptions) {","        logger = Logger.instance;","    ","        this.bigEndian = bigEndian;","        this.allowExceptions = allowExceptions;","    }","    ","    ","}","","BinaryParser.decodeFloat = function (data, precisionBits, exponentBits) {","    var b = new BinaryParserBuffer(this.bigEndian, data);","","    b.checkBuffer(precisionBits + exponentBits + 1);","","    var bias = maxBits[exponentBits - 1] - 1,","        signal = b.readBits(precisionBits + exponentBits, 1),","        exponent = b.readBits(precisionBits, exponentBits),","        significand = 0,","        divisor = 2,","        curByte = b.buffer.length + (-precisionBits >> 3) - 1;","","    do {","        for (","            var byteValue = b.buffer[ ++curByte ], startBit = precisionBits % 8 || 8, mask = 1 << startBit;","            mask >>= 1; ","            ( byteValue & mask ) && ( significand += 1 / divisor ), divisor *= 2 ","        );","    } while (precisionBits -= startBit);","    ","    ","","    if ( exponent == ( bias << 1 ) + 1 ) {","    \tif (significand) {","    \t\treturn NaN;","    \t} else {","    \t\tif (signal) {","    \t\t\treturn -Infinity;","    \t\t} else {","    \t\t\treturn +Infinity;","    \t\t}","    \t}","    } else {","    \tvar _mod = 0;","    \t","    \tif (exponent || significand) {","    \t    _mod = exponent ? Math.pow( 2, exponent - bias ) * ( 1 + significand ) : Math.pow( 2, -bias + 1 ) * significand;","    \t}","    \t","    \treturn ( 1 + signal * -2 ) * (_mod);","    }","","","    // return exponent == ( bias << 1 ) + 1 ? significand ? NaN : signal ? -Infinity : +Infinity : ( 1 + signal * -2 ) * ( exponent || significand ? !exponent ? Math.pow( 2, -bias + 1 ) * significand : Math.pow( 2, exponent - bias ) * ( 1 + significand ) : 0 );","};","","BinaryParser.decodeInt = function (data, bits, signed, forceBigEndian) {","    var b = new BinaryParserBuffer(this.bigEndian || forceBigEndian, data),","        x = b.readBits(0, bits),","        max = maxBits[bits]; //max = Math.pow( 2, bits );","","    return signed && x >= max / 2 ? x - max : x;","};","","BinaryParser.encodeFloat = function (data, precisionBits, exponentBits) {","    var bias = maxBits[exponentBits - 1] - 1,","        minExp = -bias + 1,","        maxExp = bias,","        minUnnormExp = minExp - precisionBits,","        n = parseFloat(data),","        status = isNaN(n) || n == -Infinity || n == +Infinity ? n : 0,","        exp = 0,","        len = 2 * bias + 1 + precisionBits + 3,","        bin = new Array(len),","        signal = (n = status !== 0 ? 0 : n) < 0,","        intPart = Math.floor(n = Math.abs(n)),","        floatPart = n - intPart,","        lastBit,","        rounded,","        result,","        i,","        j;","","","    for (i = len; i; bin[--i] = 0);","    ","    for (i = bias + 2; intPart && i; bin[--i] = intPart % 2, intPart = Math.floor(intPart / 2));","    ","    for (i = bias + 1; floatPart > 0 && i; (bin[++i] = ((floatPart *= 2) >= 1) - 0 ) && --floatPart);","    ","    for (i = -1; ++i < len && !bin[i];);","  ","    if (bin[(lastBit = precisionBits - 1 + (i = (exp = bias + 1 - i) >= minExp && exp <= maxExp ? i + 1 : bias + 1 - (exp = minExp - 1))) + 1]) {","        if (!(rounded = bin[lastBit])) {","            for (j = lastBit + 2; !rounded && j < len; rounded = bin[j++]);","        }","        ","        for (j = lastBit + 1; rounded && --j >= 0; (bin[j] = !bin[j] - 0) && (rounded = 0));","    }","  ","    for (i = i - 2 < 0 ? -1 : i - 3; ++i < len && !bin[i];);","    ","    if ((exp = bias + 1 - i) >= minExp && exp <= maxExp) {","        ++i;","    } else if (exp < minExp) {","        exp != bias + 1 - len && exp < minUnnormExp && console.warn(\"encodeFloat::float underflow\");    // TODO logger","        i = bias + 1 - (exp = minExp - 1);","    }","    ","    if (intPart || status !== 0) {","        console.warn(intPart ? \"encodeFloat::float overflow\" : \"encodeFloat::\" + status);    // TODO logger","        exp = maxExp + 1;","        i = bias + 2;","    ","        if (status == -Infinity) {","            signal = 1;","        } else if (isNaN(status)) {","            bin[i] = 1;","        }","    }","  ","    for (n = Math.abs(exp + bias), j = exponentBits + 1, result = \"\"; --j; result = (n % 2) + result, n = n >>= 1);","    ","    let r = [];","    ","    for (n = 0, j = 0, i = (result = (signal ? \"1\" : \"0\") + result + bin.slice(i, i + precisionBits).join(\"\")).length, r = []; i; j = (j + 1) % 8) {","        n += (1 << j) * result.charAt(--i);","        ","        if (j == 7) {","            r[r.length] = String.fromCharCode(n);","            n = 0;","        }","    }","  ","    r[r.length] = n ? String.fromCharCode(n) : \"\";","  ","    return (this.bigEndian ? r.reverse() : r).join(\"\");","};","","BinaryParser.encodeInt = function (data, bits, signed, forceBigEndian) {","    var max = maxBits[bits];","    ","    if (data >= max || data < -(max / 2)) {","        console.warn(\"encodeInt::overflow\");    // TODO logger","        data = 0;","    }","    ","    if (data < 0) {","        data += max;","    }","    ","    for (var r = []; data; r[r.length] = String.fromCharCode(data % 256), data = Math.floor(data / 256));","    ","    for (bits = -(-bits >> 3) - r.length; bits--; r[r.length] = \"\\0\");","    ","    return ((this.bigEndian || forceBigEndian) ? r.reverse() : r).join(\"\");","};","","BinaryParser.toSmall    = function( data ){ return this.decodeInt( data,  8, true  ); };","BinaryParser.fromSmall  = function( data ){ return this.encodeInt( data,  8, true  ); };","BinaryParser.toByte     = function( data ){ return this.decodeInt( data,  8, false ); };","BinaryParser.fromByte   = function( data ){ return this.encodeInt( data,  8, false ); };","BinaryParser.toShort    = function( data ){ return this.decodeInt( data, 16, true  ); };","BinaryParser.fromShort  = function( data ){ return this.encodeInt( data, 16, true  ); };","BinaryParser.toWord     = function( data ){ return this.decodeInt( data, 16, false ); };","BinaryParser.fromWord   = function( data ){ return this.encodeInt( data, 16, false ); };","BinaryParser.toInt      = function( data ){ return this.decodeInt( data, 32, true  ); };","BinaryParser.fromInt    = function( data ){ return this.encodeInt( data, 32, true  ); };","BinaryParser.toLong     = function( data ){ return this.decodeInt( data, 64, true  ); };","BinaryParser.fromLong   = function( data ){ return this.encodeInt( data, 64, true  ); };","BinaryParser.toDWord    = function( data ){ return this.decodeInt( data, 32, false ); };","BinaryParser.fromDWord  = function( data ){ return this.encodeInt( data, 32, false ); };","BinaryParser.toQWord    = function( data ){ return this.decodeInt( data, 64, true ); };","BinaryParser.fromQWord  = function( data ){ return this.encodeInt( data, 64, true ); };","BinaryParser.toFloat    = function( data ){ return this.decodeFloat( data, 23, 8   ); };","BinaryParser.fromFloat  = function( data ){ return this.encodeFloat( data, 23, 8   ); };","BinaryParser.toDouble   = function( data ){ return this.decodeFloat( data, 52, 11  ); };","BinaryParser.fromDouble = function( data ){ return this.encodeFloat( data, 52, 11  ); };","","// Factor out the encode so it can be shared by add_header and push_int32","BinaryParser.encode_int32 = function (number, asArray) {","    var a, b, c, d, unsigned;","    ","    unsigned = (number < 0) ? (number + 0x100000000) : number;","    a = Math.floor(unsigned / 0xffffff);","    ","    unsigned &= 0xffffff;","    b = Math.floor(unsigned / 0xffff);","    ","    unsigned &= 0xffff;","    c = Math.floor(unsigned / 0xff);","    ","    unsigned &= 0xff;","    d = Math.floor(unsigned);","    ","    return asArray ? [chr(a), chr(b), chr(c), chr(d)] : chr(a) + chr(b) + chr(c) + chr(d);","};","","BinaryParser.encode_int64 = function (number) {","    var a, b, c, d, e, f, g, h, unsigned;","    ","    unsigned = (number < 0) ? (number + 0x10000000000000000) : number;","    a = Math.floor(unsigned / 0xffffffffffffff);","    ","    unsigned &= 0xffffffffffffff;","    b = Math.floor(unsigned / 0xffffffffffff);","    ","    unsigned &= 0xffffffffffff;","    c = Math.floor(unsigned / 0xffffffffff);","    ","    unsigned &= 0xffffffffff;","    d = Math.floor(unsigned / 0xffffffff);","    ","    unsigned &= 0xffffffff;","    e = Math.floor(unsigned / 0xffffff);","    ","    unsigned &= 0xffffff;","    f = Math.floor(unsigned / 0xffff);","    ","    unsigned &= 0xffff;","    g = Math.floor(unsigned / 0xff);","    ","    unsigned &= 0xff;","    h = Math.floor(unsigned);","    ","    return chr(a) + chr(b) + chr(c) + chr(d) + chr(e) + chr(f) + chr(g) + chr(h);","};","","/**"," * UTF8 methods"," */","","// Take a raw binary string and return a utf8 string","BinaryParser.decode_utf8 = function (binaryStr) {","    var len = binaryStr.length,","        decoded = '',","        i = 0,","        c = 0,","        c1 = 0,","        c2 = 0,","        c3;","    ","    while (i < len) {","        c = binaryStr.charCodeAt(i);","        ","        if (c < 128) {","            decoded += String.fromCharCode(c);","            ","            i++;","        } else if ((c > 191) && (c < 224)) {","            c2 = binaryStr.charCodeAt(i+1);","            decoded += String.fromCharCode(((c & 31) << 6) | (c2 & 63));","            ","            i += 2;","        } else {","            c2 = binaryStr.charCodeAt(i+1);","            c3 = binaryStr.charCodeAt(i+2);","            decoded += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));","            ","            i += 3;","        }","    }","    ","    return decoded;","};","","// Encode a cstring","BinaryParser.encode_cstring = function (s) {","    return unescape(encodeURIComponent(s)) + BinaryParser.fromByte(0);","};","","// Take a utf8 string and return a binary string","BinaryParser.encode_utf8 = function encode_utf8 (s) {","    var a = \"\",","        c;","","    for (var n = 0, len = s.length; n < len; n++) {","        c = s.charCodeAt(n);","","        if (c < 128) {","            a += String.fromCharCode(c);","        } else if ((c > 127) && (c < 2048)) {","            a += String.fromCharCode((c>>6) | 192) ;","            a += String.fromCharCode((c&63) | 128);","        } else {","            a += String.fromCharCode((c>>12) | 224);","            a += String.fromCharCode(((c>>6) & 63) | 128);","            a += String.fromCharCode((c&63) | 128);","        }","    }","","    return a;","};","","BinaryParser.hprint = function (s) {","    var number;","","    for (var i = 0, len = s.length; i < len; i++) {","        if (s.charCodeAt(i) < 32) {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        } else {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        }","    }","    ","    process.stdout.write(\"\\n\\n\");","    ","    return number;","};","","BinaryParser.ilprint = function (s) {","    var number;","","    for (var i = 0, len = s.length; i < len; i++) {","        if (s.charCodeAt(i) < 32) {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(10) : s.charCodeAt(i).toString(10);","            ","            process.stdout.write(number + \" \");","        } else {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(10) : s.charCodeAt(i).toString(10);","            ","            process.stdout.write(number + \" \");","        }","    }","    ","    process.stdout.write(\"\\n\\n\");","    ","    return number;","};","","BinaryParser.hlprint = function (s) {","    var number;","    ","    for (var i = 0, len = s.length; i < len; i++) {","        if (s.charCodeAt(i) < 32) {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        } else {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        }","    }","    ","    process.stdout.write(\"\\n\\n\");","    ","    return number;","};","","module.exports = BinaryParser;"],"id":2},{"start":{"row":15,"column":0},"end":{"row":399,"column":30},"action":"insert","lines":["var logger = null;","","// Shorcut for String.fromCharCode","var chr = String.fromCharCode;","","var maxBits = [];","for (var i = 0; i < 64; i++) {","    maxBits[i] = Math.pow(2, i);","}","","/**"," * BinaryParser"," * @ignore"," * "," * @module Cursor"," * @constructor"," * @since 0.0.1"," * "," * @classdesc Cursor class that maps a MongoDB-like cursor"," * "," * @param {MongoPortable} db - Additional options"," * @param {Collection} collection - The collection instance"," * @param {Object|Array|String} [selection={}] - The selection for matching documents"," * @param {Object|Array|String} [fields={}] - The fields of the document to show"," * @param {Object} [options] - Database object"," * "," * @param {Object} [options.pkFactory=null] - Object overriding the basic \"ObjectId\" primary key generation."," * "," */","class BinaryParser {","    constructor(bigEndian, allowExceptions) {","        logger = Logger.instance;","    ","        this.bigEndian = bigEndian;","        this.allowExceptions = allowExceptions;","    }","    ","    ","}","","BinaryParser.decodeFloat = function (data, precisionBits, exponentBits) {","    var b = new BinaryParserBuffer(this.bigEndian, data);","","    b.checkBuffer(precisionBits + exponentBits + 1);","","    var bias = maxBits[exponentBits - 1] - 1,","        signal = b.readBits(precisionBits + exponentBits, 1),","        exponent = b.readBits(precisionBits, exponentBits),","        significand = 0,","        divisor = 2,","        curByte = b.buffer.length + (-precisionBits >> 3) - 1;","","    do {","        for (","            var byteValue = b.buffer[ ++curByte ], startBit = precisionBits % 8 || 8, mask = 1 << startBit;","            mask >>= 1; ","            ( byteValue & mask ) && ( significand += 1 / divisor ), divisor *= 2 ","        );","    } while (precisionBits -= startBit);","    ","    ","","    if ( exponent == ( bias << 1 ) + 1 ) {","    \tif (significand) {","    \t\treturn NaN;","    \t} else {","    \t\tif (signal) {","    \t\t\treturn -Infinity;","    \t\t} else {","    \t\t\treturn +Infinity;","    \t\t}","    \t}","    } else {","    \tvar _mod = 0;","    \t","    \tif (exponent || significand) {","    \t    _mod = exponent ? Math.pow( 2, exponent - bias ) * ( 1 + significand ) : Math.pow( 2, -bias + 1 ) * significand;","    \t}","    \t","    \treturn ( 1 + signal * -2 ) * (_mod);","    }","","","    // return exponent == ( bias << 1 ) + 1 ? significand ? NaN : signal ? -Infinity : +Infinity : ( 1 + signal * -2 ) * ( exponent || significand ? !exponent ? Math.pow( 2, -bias + 1 ) * significand : Math.pow( 2, exponent - bias ) * ( 1 + significand ) : 0 );","};","","BinaryParser.decodeInt = function (data, bits, signed, forceBigEndian) {","    var b = new BinaryParserBuffer(this.bigEndian || forceBigEndian, data),","        x = b.readBits(0, bits),","        max = maxBits[bits]; //max = Math.pow( 2, bits );","","    return signed && x >= max / 2 ? x - max : x;","};","","BinaryParser.encodeFloat = function (data, precisionBits, exponentBits) {","    var bias = maxBits[exponentBits - 1] - 1,","        minExp = -bias + 1,","        maxExp = bias,","        minUnnormExp = minExp - precisionBits,","        n = parseFloat(data),","        status = isNaN(n) || n == -Infinity || n == +Infinity ? n : 0,","        exp = 0,","        len = 2 * bias + 1 + precisionBits + 3,","        bin = new Array(len),","        signal = (n = status !== 0 ? 0 : n) < 0,","        intPart = Math.floor(n = Math.abs(n)),","        floatPart = n - intPart,","        lastBit,","        rounded,","        result,","        i,","        j;","","","    for (i = len; i; bin[--i] = 0);","    ","    for (i = bias + 2; intPart && i; bin[--i] = intPart % 2, intPart = Math.floor(intPart / 2));","    ","    for (i = bias + 1; floatPart > 0 && i; (bin[++i] = ((floatPart *= 2) >= 1) - 0 ) && --floatPart);","    ","    for (i = -1; ++i < len && !bin[i];);","  ","    if (bin[(lastBit = precisionBits - 1 + (i = (exp = bias + 1 - i) >= minExp && exp <= maxExp ? i + 1 : bias + 1 - (exp = minExp - 1))) + 1]) {","        if (!(rounded = bin[lastBit])) {","            for (j = lastBit + 2; !rounded && j < len; rounded = bin[j++]);","        }","        ","        for (j = lastBit + 1; rounded && --j >= 0; (bin[j] = !bin[j] - 0) && (rounded = 0));","    }","  ","    for (i = i - 2 < 0 ? -1 : i - 3; ++i < len && !bin[i];);","    ","    if ((exp = bias + 1 - i) >= minExp && exp <= maxExp) {","        ++i;","    } else if (exp < minExp) {","        exp != bias + 1 - len && exp < minUnnormExp && console.warn(\"encodeFloat::float underflow\");    // TODO logger","        i = bias + 1 - (exp = minExp - 1);","    }","    ","    if (intPart || status !== 0) {","        console.warn(intPart ? \"encodeFloat::float overflow\" : \"encodeFloat::\" + status);    // TODO logger","        exp = maxExp + 1;","        i = bias + 2;","    ","        if (status == -Infinity) {","            signal = 1;","        } else if (isNaN(status)) {","            bin[i] = 1;","        }","    }","  ","    for (n = Math.abs(exp + bias), j = exponentBits + 1, result = \"\"; --j; result = (n % 2) + result, n = n >>= 1);","    ","    let r = [];","    ","    for (n = 0, j = 0, i = (result = (signal ? \"1\" : \"0\") + result + bin.slice(i, i + precisionBits).join(\"\")).length, r = []; i; j = (j + 1) % 8) {","        n += (1 << j) * result.charAt(--i);","        ","        if (j == 7) {","            r[r.length] = String.fromCharCode(n);","            n = 0;","        }","    }","  ","    r[r.length] = n ? String.fromCharCode(n) : \"\";","  ","    return (this.bigEndian ? r.reverse() : r).join(\"\");","};","","BinaryParser.encodeInt = function (data, bits, signed, forceBigEndian) {","    var max = maxBits[bits];","    ","    if (data >= max || data < -(max / 2)) {","        console.warn(\"encodeInt::overflow\");    // TODO logger","        data = 0;","    }","    ","    if (data < 0) {","        data += max;","    }","    ","    for (var r = []; data; r[r.length] = String.fromCharCode(data % 256), data = Math.floor(data / 256));","    ","    for (bits = -(-bits >> 3) - r.length; bits--; r[r.length] = \"\\0\");","    ","    return ((this.bigEndian || forceBigEndian) ? r.reverse() : r).join(\"\");","};","","BinaryParser.toSmall    = function( data ){ return this.decodeInt( data,  8, true  ); };","BinaryParser.fromSmall  = function( data ){ return this.encodeInt( data,  8, true  ); };","BinaryParser.toByte     = function( data ){ return this.decodeInt( data,  8, false ); };","BinaryParser.fromByte   = function( data ){ return this.encodeInt( data,  8, false ); };","BinaryParser.toShort    = function( data ){ return this.decodeInt( data, 16, true  ); };","BinaryParser.fromShort  = function( data ){ return this.encodeInt( data, 16, true  ); };","BinaryParser.toWord     = function( data ){ return this.decodeInt( data, 16, false ); };","BinaryParser.fromWord   = function( data ){ return this.encodeInt( data, 16, false ); };","BinaryParser.toInt      = function( data ){ return this.decodeInt( data, 32, true  ); };","BinaryParser.fromInt    = function( data ){ return this.encodeInt( data, 32, true  ); };","BinaryParser.toLong     = function( data ){ return this.decodeInt( data, 64, true  ); };","BinaryParser.fromLong   = function( data ){ return this.encodeInt( data, 64, true  ); };","BinaryParser.toDWord    = function( data ){ return this.decodeInt( data, 32, false ); };","BinaryParser.fromDWord  = function( data ){ return this.encodeInt( data, 32, false ); };","BinaryParser.toQWord    = function( data ){ return this.decodeInt( data, 64, true ); };","BinaryParser.fromQWord  = function( data ){ return this.encodeInt( data, 64, true ); };","BinaryParser.toFloat    = function( data ){ return this.decodeFloat( data, 23, 8   ); };","BinaryParser.fromFloat  = function( data ){ return this.encodeFloat( data, 23, 8   ); };","BinaryParser.toDouble   = function( data ){ return this.decodeFloat( data, 52, 11  ); };","BinaryParser.fromDouble = function( data ){ return this.encodeFloat( data, 52, 11  ); };","","// Factor out the encode so it can be shared by add_header and push_int32","BinaryParser.encode_int32 = function (number, asArray) {","    var a, b, c, d, unsigned;","    ","    unsigned = (number < 0) ? (number + 0x100000000) : number;","    a = Math.floor(unsigned / 0xffffff);","    ","    unsigned &= 0xffffff;","    b = Math.floor(unsigned / 0xffff);","    ","    unsigned &= 0xffff;","    c = Math.floor(unsigned / 0xff);","    ","    unsigned &= 0xff;","    d = Math.floor(unsigned);","    ","    return asArray ? [chr(a), chr(b), chr(c), chr(d)] : chr(a) + chr(b) + chr(c) + chr(d);","};","","BinaryParser.encode_int64 = function (number) {","    var a, b, c, d, e, f, g, h, unsigned;","    ","    unsigned = (number < 0) ? (number + 0x10000000000000000) : number;","    a = Math.floor(unsigned / 0xffffffffffffff);","    ","    unsigned &= 0xffffffffffffff;","    b = Math.floor(unsigned / 0xffffffffffff);","    ","    unsigned &= 0xffffffffffff;","    c = Math.floor(unsigned / 0xffffffffff);","    ","    unsigned &= 0xffffffffff;","    d = Math.floor(unsigned / 0xffffffff);","    ","    unsigned &= 0xffffffff;","    e = Math.floor(unsigned / 0xffffff);","    ","    unsigned &= 0xffffff;","    f = Math.floor(unsigned / 0xffff);","    ","    unsigned &= 0xffff;","    g = Math.floor(unsigned / 0xff);","    ","    unsigned &= 0xff;","    h = Math.floor(unsigned);","    ","    return chr(a) + chr(b) + chr(c) + chr(d) + chr(e) + chr(f) + chr(g) + chr(h);","};","","/**"," * UTF8 methods"," */","","// Take a raw binary string and return a utf8 string","BinaryParser.decode_utf8 = function (binaryStr) {","    var len = binaryStr.length,","        decoded = '',","        i = 0,","        c = 0,","        c1 = 0,","        c2 = 0,","        c3;","    ","    while (i < len) {","        c = binaryStr.charCodeAt(i);","        ","        if (c < 128) {","            decoded += String.fromCharCode(c);","            ","            i++;","        } else if ((c > 191) && (c < 224)) {","            c2 = binaryStr.charCodeAt(i+1);","            decoded += String.fromCharCode(((c & 31) << 6) | (c2 & 63));","            ","            i += 2;","        } else {","            c2 = binaryStr.charCodeAt(i+1);","            c3 = binaryStr.charCodeAt(i+2);","            decoded += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));","            ","            i += 3;","        }","    }","    ","    return decoded;","};","","// Encode a cstring","BinaryParser.encode_cstring = function (s) {","    return unescape(encodeURIComponent(s)) + BinaryParser.fromByte(0);","};","","// Take a utf8 string and return a binary string","BinaryParser.encode_utf8 = function encode_utf8 (s) {","    var a = \"\",","        c;","","    for (var n = 0, len = s.length; n < len; n++) {","        c = s.charCodeAt(n);","","        if (c < 128) {","            a += String.fromCharCode(c);","        } else if ((c > 127) && (c < 2048)) {","            a += String.fromCharCode((c>>6) | 192) ;","            a += String.fromCharCode((c&63) | 128);","        } else {","            a += String.fromCharCode((c>>12) | 224);","            a += String.fromCharCode(((c>>6) & 63) | 128);","            a += String.fromCharCode((c&63) | 128);","        }","    }","","    return a;","};","","BinaryParser.hprint = function (s) {","    var number;","","    for (var i = 0, len = s.length; i < len; i++) {","        if (s.charCodeAt(i) < 32) {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        } else {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        }","    }","    ","    process.stdout.write(\"\\n\\n\");","    ","    return number;","};","","BinaryParser.ilprint = function (s) {","    var number;","","    for (var i = 0, len = s.length; i < len; i++) {","        if (s.charCodeAt(i) < 32) {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(10) : s.charCodeAt(i).toString(10);","            ","            process.stdout.write(number + \" \");","        } else {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(10) : s.charCodeAt(i).toString(10);","            ","            process.stdout.write(number + \" \");","        }","    }","    ","    process.stdout.write(\"\\n\\n\");","    ","    return number;","};","","BinaryParser.hlprint = function (s) {","    var number;","    ","    for (var i = 0, len = s.length; i < len; i++) {","        if (s.charCodeAt(i) < 32) {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        } else {","            number = s.charCodeAt(i) <= 15 ? \"0\" + s.charCodeAt(i).toString(16) : s.charCodeAt(i).toString(16);","            ","            process.stdout.write(number + \" \");","        }","    }","    ","    process.stdout.write(\"\\n\\n\");","    ","    return number;","};","","module.exports = BinaryParser;"]}]]},"ace":{"folds":[],"scrolltop":5629,"scrollleft":0,"selection":{"start":{"row":399,"column":30},"end":{"row":399,"column":30},"isBackwards":false},"options":{"guessTabSize":true,"useWrapMode":false,"wrapToView":true},"firstLineState":{"row":374,"state":"start","mode":"ace/mode/javascript"}},"timestamp":1470298181416,"hash":"8f5388f73cdd3356fe53ed26e46d6dfc622825b0"}