can/dist/cjs/util/string/deparam/deparam.js

MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.

/*!
 * CanJS - 2.3.34
 * http://canjs.com/
 * Copyright (c) 2018 Bitovi
 * Mon, 30 Apr 2018 20:56:51 GMT
 * Licensed MIT
 */

/*can@2.3.34#util/string/deparam/deparam*/
var can = require('../../util.js');
require('../string.js');
var digitTest = /^\d+$/, keyBreaker = /([^\[\]]+)|(\[\])/g, paramTest = /([^?#]*)(#.*)?$/, prep = function (str) {
        return decodeURIComponent(str.replace(/\+/g, ' '));
    };
can.extend(can, {
    deparam: function (params) {
        var data = {}, pairs, lastPart;
        if (params && paramTest.test(params)) {
            pairs = params.split('&');
            can.each(pairs, function (pair) {
                var parts = pair.split('='), key = prep(parts.shift()), value = prep(parts.join('=')), current = data;
                if (key) {
                    parts = key.match(keyBreaker);
                    for (var j = 0, l = parts.length - 1; j < l; j++) {
                        if (!current[parts[j]]) {
                            current[parts[j]] = digitTest.test(parts[j + 1]) || parts[j + 1] === '[]' ? [] : {};
                        }
                        current = current[parts[j]];
                    }
                    lastPart = parts.pop();
                    if (lastPart === '[]') {
                        current.push(value);
                    } else {
                        current[lastPart] = value;
                    }
                }
            });
        }
        return data;
    }
});
module.exports = can;