function convert(input) {
    alert('Error.  Contact us if this keeps happening.');
    document.getElementById('modal-contact').classList.add('show');
    }







    window.ctMaxUploadFiles = 1;
    var _ctAsciiState = { image: null, fileName: 'image' };

    var _ctAsciiCharsets = {
        detailed: '$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\\|()1{}[]?-_+~<>i!lI;:,\"^`. ',
        simple:   '@%#*+=-:. '
    };

    function _ctAsciiRender() {
        var img = _ctAsciiState.image;
        var out = document.getElementById('box2');
        if (!img) { if (out) out.value = ''; return; }
        var w = parseInt((document.getElementById('ascii-width') || {}).value, 10);
        if (!isFinite(w)) w = 100;
        w = Math.max(20, Math.min(300, w));
        var widthLabel = document.getElementById('ascii-width-label');
        if (widthLabel) widthLabel.textContent = w;

        var charsetKey = (document.getElementById('ascii-charset') || {}).value || 'detailed';
        var chars = _ctAsciiCharsets[charsetKey] || _ctAsciiCharsets.detailed;
        var dark = !!(document.getElementById('ascii-dark') || {}).checked;
        if (dark) chars = chars.split('').reverse().join('');

        var aspect = 0.5; // chars are about twice as tall as wide
        var h = Math.max(1, Math.round((img.naturalHeight / img.naturalWidth) * w * aspect));
        var canvas = document.createElement('canvas');
        canvas.width = w;
        canvas.height = h;
        var ctx = canvas.getContext('2d');
        ctx.drawImage(img, 0, 0, w, h);
        var data;
        try { data = ctx.getImageData(0, 0, w, h).data; }
        catch (err) { alert('Could not read pixels from this image.'); return; }

        var lines = [];
        for (var y = 0; y < h; y++) {
            var line = '';
            for (var x = 0; x < w; x++) {
                var i = (y * w + x) * 4;
                var r = data[i], g = data[i+1], b = data[i+2], a = data[i+3];
                var lum;
                if (a === 0) lum = 1;
                else lum = (0.299*r + 0.587*g + 0.114*b) / 255;
                var idx = Math.min(chars.length - 1, Math.floor(lum * (chars.length - 1)));
                line += chars.charAt(idx);
            }
            lines.push(line);
        }
        var ascii = lines.join('\n');
        if (out) {
            out.value = ascii;
            try { if (typeof writeCharacterAndWordCount === 'function') writeCharacterAndWordCount(); } catch (e) {}
        }

        var preview = document.getElementById('ascii-preview');
        if (preview) preview.textContent = ascii;

        var base = (_ctAsciiState.fileName || 'image').replace(/\.[^.]+$/, '');
        var anchor = document.getElementById('ascii-download');
        if (anchor) {
            try { URL.revokeObjectURL(anchor.href); } catch (e) {}
            var blob = new Blob([ascii], { type: 'text/plain;charset=utf-8' });
            anchor.href = URL.createObjectURL(blob);
            anchor.download = base + '.txt';
            anchor.style.display = '';
        }
    }

    function processFile(blob, fileName) {
        _ctAsciiState.fileName = fileName || 'image';
        var img = new Image();
        img.onload = function() {
            _ctAsciiState.image = img;
            var wrap = document.getElementById('ascii-controls');
            if (wrap) wrap.style.display = '';
            _ctAsciiRender();
        };
        img.onerror = function() { alert('Could not decode this image.'); };
        img.src = URL.createObjectURL(blob);
    }

    $(function(){
        $('#ascii-width, #ascii-charset, #ascii-dark').on('input change', _ctAsciiRender);
    });



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;

}