Function cb_utob

Script/Parser.js:3003–3021

(c)

    var fromCharCode = String.fromCharCode;
    // encoder stuff
    var cb_utob = function (c) {
        if (c.length < 2) {
            var cc = c.charCodeAt(0);
            return cc < 0x80 ? c
                : cc < 0x800 ? (fromCharCode(0xc0 | (cc >>> 6))
                    + fromCharCode(0x80 | (cc & 0x3f)))
                    : (fromCharCode(0xe0 | ((cc >>> 12) & 0x0f))
                        + fromCharCode(0x80 | ((cc >>> 6) & 0x3f))
                        + fromCharCode(0x80 | (cc & 0x3f)));
        } else {
            var cc = 0x10000
                + (c.charCodeAt(0) - 0xD800) * 0x400
                + (c.charCodeAt(1) - 0xDC00);
            return (fromCharCode(0xf0 | ((cc >>> 18) & 0x07))
                + fromCharCode(0x80 | ((cc >>> 12) & 0x3f))
                + fromCharCode(0x80 | ((cc >>> 6) & 0x3f))
                + fromCharCode(0x80 | (cc & 0x3f)));
        }
    };
    var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
    var utob = function (u) {
        return u.replace(re_utob, cb_utob);