/*
* (C) IPI GmbH | ipi-gmbh.com
* Contains the JSONstring library.
*/
JSONstring = {
    compactOutput: false,
    includeProtos: false,
    includeFunctions: false,
    detectCirculars: true,
    restoreCirculars: true,
    make: function (arg, restore)
    {
        this.restore = restore;
        this.mem = []; this.pathMem = [];
        return this.toJsonStringArray(arg).join('');
    },
    toObject: function (x)
    {
        if (!this.cleaner)
        {
            try { this.cleaner = new RegExp('^("(\\\\.|[^"\\\\\\n\\r])*?"|[,:{}\\[\\]0-9.\\-+Eaeflnr-u \\n\\r\\t])+?$') }
            catch (a) { this.cleaner = /^(true|false|null|\[.*\]|\{.*\}|".*"|\d+|\d+\.\d+)$/ }
        };
        if (!this.cleaner.test(x)) { return {} };
        eval("this.myObj=" + x);
        if (!this.restoreCirculars || !alert) { return this.myObj };
        if (this.includeFunctions)
        {
            var x = this.myObj;
            for (var i in x)
            {
                if (typeof x[i] == "string" && !x[i].indexOf("JSONincludedFunc:"))
                {
                    x[i] = x[i].substring(17);
                    eval("x[i]=" + x[i])
                }
            }
        };
        this.restoreCode = [];
        this.make(this.myObj, true);
        var r = this.restoreCode.join(";") + ";";
        eval('r=r.replace(/\\W([0-9]{1,})(\\W)/g,"[$1]$2").replace(/\\.\\;/g,";")');
        eval(r);
        return this.myObj
    },
    toJsonStringArray: function (arg, out)
    {
        if (!out) { this.path = [] };
        out = out || [];
        var u; // undefined
        switch (typeof arg)
        {
            case 'object':
                this.lastObj = arg;
                if (this.detectCirculars)
                {
                    var m = this.mem; var n = this.pathMem;
                    for (var i = 0; i < m.length; i++)
                    {
                        if (arg === m[i])
                        {
                            out.push('"JSONcircRef:' + n[i] + '"'); return out
                        }
                    };
                    m.push(arg); n.push(this.path.join("."));
                };
                if (arg)
                {
                    if (arg.constructor == Array)
                    {
                        out.push('[');
                        for (var i = 0; i < arg.length; ++i)
                        {
                            this.path.push(i);
                            if (i > 0)
                                out.push(',\n');
                            this.toJsonStringArray(arg[i], out);
                            this.path.pop();
                        }
                        out.push(']');
                        return out;
                    } else if (typeof arg.toString != 'undefined')
                    {
                        out.push('{');
                        var first = true;
                        for (var i in arg)
                        {
                            if (!this.includeProtos && arg[i] === arg.constructor.prototype[i]) { continue };
                            this.path.push(i);
                            var curr = out.length;
                            if (!first)
                                out.push(this.compactOutput ? ',' : ',\n');
                            this.toJsonStringArray(i, out);
                            out.push(':');
                            this.toJsonStringArray(arg[i], out);
                            if (out[out.length - 1] == u)
                                out.splice(curr, out.length - curr);
                            else
                                first = false;
                            this.path.pop();
                        }
                        out.push('}');
                        return out;
                    }
                    return out;
                }
                out.push('null');
                return out;
            case 'unknown':
            case 'undefined':
            case 'function':
                if (!this.includeFunctions) { out.push(u); return out };
                arg = "JSONincludedFunc:" + arg;
                out.push('"');
                var a = ['\\', '\\\\', '\n', '\\n', '\r', '\\r', '"', '\\"']; arg += "";
                for (var i = 0; i < 8; i += 2) { arg = arg.split(a[i]).join(a[i + 1]) };
                out.push(arg);
                out.push('"');
                return out;
            case 'string':
                if (this.restore && arg.indexOf("JSONcircRef:") == 0)
                {
                    this.restoreCode.push('this.myObj.' + this.path.join(".") + "=" + arg.split("JSONcircRef:").join("this.myObj."));
                };
                out.push('"');
                var a = ['\n', '\\n', '\r', '\\r', '"', '\\"'];
                arg += ""; for (var i = 0; i < 6; i += 2) { arg = arg.split(a[i]).join(a[i + 1]) };
                out.push(arg);
                out.push('"');
                return out;
            default:
                out.push(String(arg));
                return out;
        }
    }
};