/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*! crc32.js (C) 2014-present SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*exported CRC32 */
var CRC32;
(function (factory) {
    /*jshint ignore:start */
    /*eslint-disable */
    if(typeof DO_NOT_EXPORT_CRC === 'undefined') {
        if('object' === typeof exports) {
            factory(exports);
        } else if ('function' === typeof define && define.amd) {
            define(function () {
                var module = {};
                factory(module);
                return module;
            });
        } else {
            factory(CRC32 = {});
        }
    } else {
        factory(CRC32 = {});
    }
    /*eslint-enable */
    /*jshint ignore:end */
}(function(CRC32) {
CRC32.version = '1.2.3';
/*global Int32Array */
function signed_crc_table() {
    var c = 0, table = new Array(256);

    for(var n =0; n != 256; ++n){
        c = n;
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        table[n] = c;
    }

    return typeof Int32Array !== 'undefined' ? new Int32Array(table) : table;
}

var T0 = signed_crc_table();
function slice_by_16_tables(T) {
    var c = 0, v = 0, n = 0, table = typeof Int32Array !== 'undefined' ? new Int32Array(4096) : new Array(4096) ;

    for(n = 0; n != 256; ++n) table[n] = T[n];
    for(n = 0; n != 256; ++n) {
        v = T[n];
        for(c = 256 + n; c < 4096; c += 256) v = table[c] = (v >>> 8) ^ T[v & 0xFF];
    }
    var out = [];
    for(n = 1; n != 16; ++n) out[n - 1] = typeof Int32Array !== 'undefined' ? table.subarray(n * 256, n * 256 + 256) : table.slice(n * 256, n * 256 + 256);
    return out;
}
var TT = slice_by_16_tables(T0);
var T1 = TT[0],  T2 = TT[1],  T3 = TT[2],  T4 = TT[3],  T5 = TT[4];
var T6 = TT[5],  T7 = TT[6],  T8 = TT[7],  T9 = TT[8],  Ta = TT[9];
var Tb = TT[10], Tc = TT[11], Td = TT[12], Te = TT[13], Tf = TT[14];
function crc32_bstr(bstr, seed) {
    var C = seed ^ -1;
    for(var i = 0, L = bstr.length; i < L;) C = (C>>>8) ^ T0[(C^bstr.charCodeAt(i++))&0xFF];
    return ~C;
}

function crc32_buf(B, seed) {
    var C = seed ^ -1, L = B.length - 15, i = 0;
    for(; i < L;) C =
        Tf[B[i++] ^ (C & 255)] ^
        Te[B[i++] ^ ((C >> 8) & 255)] ^
        Td[B[i++] ^ ((C >> 16) & 255)] ^
        Tc[B[i++] ^ (C >>> 24)] ^
        Tb[B[i++]] ^ Ta[B[i++]] ^ T9[B[i++]] ^ T8[B[i++]] ^
        T7[B[i++]] ^ T6[B[i++]] ^ T5[B[i++]] ^ T4[B[i++]] ^
        T3[B[i++]] ^ T2[B[i++]] ^ T1[B[i++]] ^ T0[B[i++]];
    L += 15;
    while(i < L) C = (C>>>8) ^ T0[(C^B[i++])&0xFF];
    return ~C;
}

function crc32_str(str, seed) {
    var C = seed ^ -1;
    for(var i = 0, L = str.length, c = 0, d = 0; i < L;) {
        c = str.charCodeAt(i++);
        if(c < 0x80) {
            C = (C>>>8) ^ T0[(C^c)&0xFF];
        } else if(c < 0x800) {
            C = (C>>>8) ^ T0[(C ^ (192|((c>>6)&31)))&0xFF];
            C = (C>>>8) ^ T0[(C ^ (128|(c&63)))&0xFF];
        } else if(c >= 0xD800 && c < 0xE000) {
            c = (c&1023)+64; d = str.charCodeAt(i++)&1023;
            C = (C>>>8) ^ T0[(C ^ (240|((c>>8)&7)))&0xFF];
            C = (C>>>8) ^ T0[(C ^ (128|((c>>2)&63)))&0xFF];
            C = (C>>>8) ^ T0[(C ^ (128|((d>>6)&15)|((c&3)<<4)))&0xFF];
            C = (C>>>8) ^ T0[(C ^ (128|(d&63)))&0xFF];
        } else {
            C = (C>>>8) ^ T0[(C ^ (224|((c>>12)&15)))&0xFF];
            C = (C>>>8) ^ T0[(C ^ (128|((c>>6)&63)))&0xFF];
            C = (C>>>8) ^ T0[(C ^ (128|(c&63)))&0xFF];
        }
    }
    return ~C;
}
CRC32.table = T0;
// $FlowIgnore
CRC32.bstr = crc32_bstr;
// $FlowIgnore
CRC32.buf = crc32_buf;
// $FlowIgnore
CRC32.str = crc32_str;
}));
