Function uriencode

Script/Parser.js:3052–3058

(u, urisafe)

            : btoa(utob(String(u)));
    }
    var uriencode = function (u, urisafe) {
        return !urisafe
            ? _encode(u)
            : _encode(String(u)).replace(/[+\/]/g, function (m0) {
                return m0 == '+' ? '-' : '_';
            }).replace(/=/g, '');
    };
    var encodeURI = function (u) { return uriencode(u, true) };
    // decoder stuff
    var re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;