wxmini/miniprogram_npm/@protobufjs/base64/index.js

module.exports = (function() {
var __MODS__ = {};
var __DEFINE__ = function(modId, func, req) { var m = { exports: {}, _tempexports: {} }; __MODS__[modId] = { status: 0, func: func, req: req, m: m }; };
var __REQUIRE__ = function(modId, source) { if(!__MODS__[modId]) return require(source); if(!__MODS__[modId].status) { var m = __MODS__[modId].m; m._exports = m._tempexports; var desp = Object.getOwnPropertyDescriptor(m, "exports"); if (desp && desp.configurable) Object.defineProperty(m, "exports", { set: function (val) { if(typeof val === "object" && val !== m._exports) { m._exports.__proto__ = val.__proto__; Object.keys(val).forEach(function (k) { m._exports[k] = val[k]; }); } m._tempexports = val }, get: function () { return m._tempexports; } }); __MODS__[modId].status = 1; __MODS__[modId].func(__MODS__[modId].req, m, m.exports); } return __MODS__[modId].m.exports; };
var __REQUIRE_WILDCARD__ = function(obj) { if(obj && obj.__esModule) { return obj; } else { var newObj = {}; if(obj != null) { for(var k in obj) { if (Object.prototype.hasOwnProperty.call(obj, k)) newObj[k] = obj[k]; } } newObj.default = obj; return newObj; } };
var __REQUIRE_DEFAULT__ = function(obj) { return obj && obj.__esModule ? obj.default : obj; };
__DEFINE__(1682324647444, function(require, module, exports) {


/**
 * A minimal base64 implementation for number arrays.
 * @memberof util
 * @namespace
 */
var base64 = exports;

/**
 * Calculates the byte length of a base64 encoded string.
 * @param {string} string Base64 encoded string
 * @returns {number} Byte length
 */
base64.length = function length(string) {
    var p = string.length;
    if (!p)
        return 0;
    var n = 0;
    while (--p % 4 > 1 && string.charAt(p) === "=")
        ++n;
    return Math.ceil(string.length * 3) / 4 - n;
};

// Base64 encoding table
var b64 = new Array(64);

// Base64 decoding table
var s64 = new Array(123);

// 65..90, 97..122, 48..57, 43, 47
for (var i = 0; i < 64;)
    s64[b64[i] = i < 26 ? i + 65 : i < 52 ? i + 71 : i < 62 ? i - 4 : i - 59 | 43] = i++;

/**
 * Encodes a buffer to a base64 encoded string.
 * @param {Uint8Array} buffer Source buffer
 * @param {number} start Source start
 * @param {number} end Source end
 * @returns {string} Base64 encoded string
 */
base64.encode = function encode(buffer, start, end) {
    var parts = null,
        chunk = [];
    var i = 0, // output index
        j = 0, // goto index
        t;     // temporary
    while (start < end) {
        var b = buffer[start++];
        switch (j) {
            case 0:
                chunk[i++] = b64[b >> 2];
                t = (b & 3) << 4;
                j = 1;
                break;
            case 1:
                chunk[i++] = b64[t | b >> 4];
                t = (b & 15) << 2;
                j = 2;
                break;
            case 2:
                chunk[i++] = b64[t | b >> 6];
                chunk[i++] = b64[b & 63];
                j = 0;
                break;
        }
        if (i > 8191) {
            (parts || (parts = [])).push(String.fromCharCode.apply(String, chunk));
            i = 0;
        }
    }
    if (j) {
        chunk[i++] = b64[t];
        chunk[i++] = 61;
        if (j === 1)
            chunk[i++] = 61;
    }
    if (parts) {
        if (i)
            parts.push(String.fromCharCode.apply(String, chunk.slice(0, i)));
        return parts.join("");
    }
    return String.fromCharCode.apply(String, chunk.slice(0, i));
};

var invalidEncoding = "invalid encoding";

/**
 * Decodes a base64 encoded string to a buffer.
 * @param {string} string Source string
 * @param {Uint8Array} buffer Destination buffer
 * @param {number} offset Destination offset
 * @returns {number} Number of bytes written
 * @throws {Error} If encoding is invalid
 */
base64.decode = function decode(string, buffer, offset) {
    var start = offset;
    var j = 0, // goto index
        t;     // temporary
    for (var i = 0; i < string.length;) {
        var c = string.charCodeAt(i++);
        if (c === 61 && j > 1)
            break;
        if ((c = s64[c]) === undefined)
            throw Error(invalidEncoding);
        switch (j) {
            case 0:
                t = c;
                j = 1;
                break;
            case 1:
                buffer[offset++] = t << 2 | (c & 48) >> 4;
                t = c;
                j = 2;
                break;
            case 2:
                buffer[offset++] = (t & 15) << 4 | (c & 60) >> 2;
                t = c;
                j = 3;
                break;
            case 3:
                buffer[offset++] = (t & 3) << 6 | c;
                j = 0;
                break;
        }
    }
    if (j === 1)
        throw Error(invalidEncoding);
    return offset - start;
};

/**
 * Tests if the specified string appears to be base64 encoded.
 * @param {string} string String to test
 * @returns {boolean} `true` if probably base64 encoded, otherwise false
 */
base64.test = function test(string) {
    return /^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/.test(string);
};

}, function(modId) {var map = {}; return __REQUIRE__(map[modId], modId); })
return __REQUIRE__(1682324647444);
})()
//miniprogram-npm-outsideDeps=[]
//# sourceMappingURL=index.js.map