jszip/lib/reader/readerFor.js

Create, read and edit .zip files with JavaScript http://stuartk.com/jszip

'use strict';

var utils = require('../utils');
var support = require('../support');
var ArrayReader = require('./ArrayReader');
var StringReader = require('./StringReader');
var NodeBufferReader = require('./NodeBufferReader');
var Uint8ArrayReader = require('./Uint8ArrayReader');

/**
 * Create a reader adapted to the data.
 * @param {String|ArrayBuffer|Uint8Array|Buffer} data the data to read.
 * @return {DataReader} the data reader.
 */
module.exports = function (data) {
    var type = utils.getTypeOf(data);
    utils.checkSupport(type);
    if (type === "string" && !support.uint8array) {
        return new StringReader(data);
    }
    if (type === "nodebuffer") {
        return new NodeBufferReader(data);
    }
    if (support.uint8array) {
        return new Uint8ArrayReader(utils.transformTo("uint8array", data));
    }
    return new ArrayReader(utils.transformTo("array", data));
};