HIYL-localization-web/public/static/base64.js

(function (global) {
    'use strict';
    let _Base64 = global.Base64;
    let version = "2.1.9";
    let buffer;
    // constants
    let b64chars
        = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
    let b64tab = function (bin) {
        let t = {};
        for (let i = 0, l = bin.length; i < l; i++) t[bin.charAt(i)] = i;
        return t;
    }(b64chars);
    let fromCharCode = String.fromCharCode;
    // encoder stuff
    let cb_utob = function (c) {
        if (c.length < 2) {
            let cc = c.charCodeAt(0);
            return cc < 0x80 ? c
                : cc < 0x800 ? (fromCharCode(0xc0 | (cc >>> 6))
                    + fromCharCode(0x80 | (cc & 0x3f)))
                    : (fromCharCode(0xe0 | ((cc >>> 12) & 0x0f))
                        + fromCharCode(0x80 | ((cc >>> 6) & 0x3f))
                        + fromCharCode(0x80 | (cc & 0x3f)));
        } else {
            let cc = 0x10000
                + (c.charCodeAt(0) - 0xD800) * 0x400
                + (c.charCodeAt(1) - 0xDC00);
            return (fromCharCode(0xf0 | ((cc >>> 18) & 0x07))
                + fromCharCode(0x80 | ((cc >>> 12) & 0x3f))
                + fromCharCode(0x80 | ((cc >>> 6) & 0x3f))
                + fromCharCode(0x80 | (cc & 0x3f)));
        }
    };
    let re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
    let utob = function (u) {
        return u.replace(re_utob, cb_utob);
    };
    let cb_encode = function (ccc) {
        let padlen = [0, 2, 1][ccc.length % 3],
            ord = ccc.charCodeAt(0) << 16
                | ((ccc.length > 1 ? ccc.charCodeAt(1) : 0) << 8)
                | ((ccc.length > 2 ? ccc.charCodeAt(2) : 0)),
            chars = [
                b64chars.charAt(ord >>> 18),
                b64chars.charAt((ord >>> 12) & 63),
                padlen >= 2 ? '=' : b64chars.charAt((ord >>> 6) & 63),
                padlen >= 1 ? '=' : b64chars.charAt(ord & 63)
            ];
        return chars.join('');
    };
    let btoa = global.btoa ? function (b) {
        return global.btoa(b);
    } : function (b) {
        return b.replace(/[\s\S]{1,3}/g, cb_encode);
    };
    let _encode = buffer ? function (u) {
            return (u.constructor === buffer.constructor ? u : new buffer(u))
                .toString('base64')
        }
        : function (u) {
            return btoa(utob(u))
        }
    ;
    let encode = function (u, urisafe) {
        return !urisafe
            ? _encode(String(u))
            : _encode(String(u)).replace(/[+\/]/g, function (m0) {
                return m0 == '+' ? '-' : '_';
            }).replace(/=/g, '');
    };
    let encodeURI = function (u) {
        return encode(u, true)
    };
    // decoder stuff
    let re_btou = new RegExp([
        '[\xC0-\xDF][\x80-\xBF]',
        '[\xE0-\xEF][\x80-\xBF]{2}',
        '[\xF0-\xF7][\x80-\xBF]{3}'
    ].join('|'), 'g');
    let cb_btou = function (cccc) {
        switch (cccc.length) {
            case 4:
                let cp = ((0x07 & cccc.charCodeAt(0)) << 18)
                    | ((0x3f & cccc.charCodeAt(1)) << 12)
                    | ((0x3f & cccc.charCodeAt(2)) << 6)
                    | (0x3f & cccc.charCodeAt(3)),
                    offset = cp - 0x10000;
                return (fromCharCode((offset >>> 10) + 0xD800)
                    + fromCharCode((offset & 0x3FF) + 0xDC00));
            case 3:
                return fromCharCode(
                    ((0x0f & cccc.charCodeAt(0)) << 12)
                    | ((0x3f & cccc.charCodeAt(1)) << 6)
                    | (0x3f & cccc.charCodeAt(2))
                );
            default:
                return fromCharCode(
                    ((0x1f & cccc.charCodeAt(0)) << 6)
                    | (0x3f & cccc.charCodeAt(1))
                );
        }
    };
    let btou = function (b) {
        return b.replace(re_btou, cb_btou);
    };
    let cb_decode = function (cccc) {
        let len = cccc.length,
            padlen = len % 4,
            n = (len > 0 ? b64tab[cccc.charAt(0)] << 18 : 0)
                | (len > 1 ? b64tab[cccc.charAt(1)] << 12 : 0)
                | (len > 2 ? b64tab[cccc.charAt(2)] << 6 : 0)
                | (len > 3 ? b64tab[cccc.charAt(3)] : 0),
            chars = [
                fromCharCode(n >>> 16),
                fromCharCode((n >>> 8) & 0xff),
                fromCharCode(n & 0xff)
            ];
        chars.length -= [0, 0, 2, 1][padlen];
        return chars.join('');
    };
    let atob = global.atob ? function (a) {
        return global.atob(a);
    } : function (a) {
        return a.replace(/[\s\S]{1,4}/g, cb_decode);
    };
    let _decode = buffer ? function (a) {
            return (a.constructor === buffer.constructor
                ? a : new buffer(a, 'base64')).toString();
        }
        : function (a) {
            return btou(atob(a))
        };
    let decode = function (a) {
        return _decode(
            String(a).replace(/[-_]/g, function (m0) {
                return m0 == '-' ? '+' : '/'
            })
                .replace(/[^A-Za-z0-9\+\/]/g, '')
        );
    };
    let noConflict = function () {
        let Base64 = global.Base64;
        global.Base64 = _Base64;
        return Base64;
    };
    // export Base64
    global.Base64 = {
        VERSION: version,
        atob: atob,
        btoa: btoa,
        fromBase64: decode,
        toBase64: encode,
        utob: utob,
        encode: encode,
        encodeURI: encodeURI,
        btou: btou,
        decode: decode,
        noConflict: noConflict
    };
})(this);