function convert(input) {
        if (!input || !input.trim()) return '';
        return input.split(/\r\n|\r|\n/).map(function (line) {
            var value = line.trim();
            if (!value) return '';
            var wrapped = value.match(/^rgb\(\s*(.*?)\s*\)$/i);
            if (wrapped) value = wrapped[1];
            var match = value.match(/^(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})$/)
                || value.match(/^(\d{1,3})\s+(\d{1,3})\s+(\d{1,3})$/);
            if (!match) return 'Please enter three RGB integers from 0 to 255.';
            var rgb = match.slice(1).map(Number);
            if (rgb.some(function (channel) { return channel > 255; })) {
                return 'Please enter three RGB integers from 0 to 255.';
            }
            var max = Math.max.apply(null, rgb);
            var cmyk = max === 0 ? [0, 0, 0, 100] : [
                (max - rgb[0]) / max * 100,
                (max - rgb[1]) / max * 100,
                (max - rgb[2]) / max * 100,
                (1 - max / 255) * 100
            ];
            return 'CMYK(' + cmyk.map(function (channel) {
                return Number(channel.toFixed(2)) + '%';
            }).join(', ') + ')';
        }).join('\n');
    }






var _loadedScripts = {};
function loadScriptPromise(url) {
    if (_loadedScripts[url]) return _loadedScripts[url];
    _loadedScripts[url] = new Promise(function (resolve, reject) {
        var s = document.createElement('script');
        s.src = url;
        s.onload = resolve;
        s.onerror = reject;
        document.head.appendChild(s);
    });
    return _loadedScripts[url];
}

function replaceAll(find, replace, str) {
    return str.replace(new RegExp(find, 'g'), replace);
}

function beautify(str) {


    var result = '';

    var length = str.length;

    var i = 0;

    var braceCountLeft = 0;
    var braceCountRight = 0;

    var withinQuotes = false;

    while (i < length) {

        var c = str[i];

        if (c == '"' && (i == 0 || c[i - 1] != '\\')) {
            // non-escaped quotes
            withinQuotes = !withinQuotes;
        }

        if (!withinQuotes && (c == '}' || c == '{' || c == ',')) {

            console.log('Start####' + result);

            // look back and remove carriage returns and whitespace that are already there

            var resultIndex = result.length - 1;
            while (resultIndex >= 0 && (result[resultIndex] == ' ' || result[resultIndex] == '\r' || result[resultIndex] == '\n' || result[resultIndex] == '\t')) {

                resultIndex = resultIndex - 1;
                result = result.substr(0, resultIndex + 1);

                console.log('char ' + result[resultIndex] + '-----' + result + 'zzz ' + result.length + ' ' + resultIndex);

            }


            if (c == '{') {
                braceCountLeft++;
                result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
            } else if (c == '}') {
                braceCountRight++;
                // precede with carriage return
                result += '\r' + GetTabs(braceCountLeft - braceCountRight) + c;
            } else if (c == ',') {
                result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
            }

            var nextChar = '';

            // advance through whitespace and remove carriage returns that are already there
            while (i < length && (str[i + 1] == ' ' || str[i + 1] == '\r' || str[i + 1] == '\n' || str[i + 1] == '\t')) {
                i++;
            }

        } else {

            result += str[i];

        }


        i++;

    }

    return result;

}

function GetTabs(count) {

    var result = '';

    for (var i = 0; i < count; i++) {
        result += '    ';
    }

    return result;

}