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







    var _ctUtsStyles = {
        plain:           { upper: null,    lower: null,    digit: null    },
        bold:            { upper: 0x1D400, lower: 0x1D41A, digit: 0x1D7CE },
        italic:          { upper: 0x1D434, lower: 0x1D44E, digit: null    },
        boldItalic:      { upper: 0x1D468, lower: 0x1D482, digit: null    },
        script:          { upper: 0x1D49C, lower: 0x1D4B6, digit: null    },
        boldScript:      { upper: 0x1D4D0, lower: 0x1D4EA, digit: null    },
        fraktur:         { upper: 0x1D504, lower: 0x1D51E, digit: null    },
        boldFraktur:     { upper: 0x1D56C, lower: 0x1D586, digit: null    },
        doubleStruck:    { upper: 0x1D538, lower: 0x1D552, digit: 0x1D7D8 },
        sansSerif:       { upper: 0x1D5A0, lower: 0x1D5BA, digit: 0x1D7E2 },
        sansSerifBold:   { upper: 0x1D5D4, lower: 0x1D5EE, digit: 0x1D7EC },
        sansSerifItalic: { upper: 0x1D608, lower: 0x1D622, digit: null    },
        sansSerifBoldItalic: { upper: 0x1D63C, lower: 0x1D656, digit: null },
        monospace:       { upper: 0x1D670, lower: 0x1D68A, digit: 0x1D7F6 }
    };

    var _ctUtsPatches = {
        italic:     { h: 0x210E },
        script:     { B: 0x212C, E: 0x2130, F: 0x2131, H: 0x210B, I: 0x2110, L: 0x2112, M: 0x2133, R: 0x211B, e: 0x212F, g: 0x210A, o: 0x2134 },
        fraktur:    { C: 0x212D, H: 0x210C, I: 0x2111, R: 0x211C, Z: 0x2128 },
        doubleStruck: { C: 0x2102, H: 0x210D, N: 0x2115, P: 0x2119, Q: 0x211A, R: 0x211D, Z: 0x2124 }
    };

    var _ctUtsSmallCaps = {
        a:'ᴀ', b:'ʙ', c:'ᴄ', d:'ᴅ', e:'ᴇ', f:'ꜰ', g:'ɢ',
        h:'ʜ', i:'ɪ', j:'ᴊ', k:'ᴋ', l:'ʟ', m:'ᴍ', n:'ɴ',
        o:'ᴏ', p:'ᴘ', q:'ǫ', r:'ʀ', s:'ꜱ', t:'ᴛ', u:'ᴜ',
        v:'ᴠ', w:'ᴡ', x:'ˣ', y:'ʏ', z:'ᴢ'
    };

    function _ctUtsApply(input, style) {
        if (!input) return '';
        if (style === 'plain') return input;
        if (style === 'smallCaps') {
            var out = '';
            for (var i = 0; i < input.length; i++) {
                var ch = input.charAt(i);
                var low = ch.toLowerCase();
                var sc = _ctUtsSmallCaps[low];
                if (sc) {
                    out += (ch === low ? sc : ch);
                } else {
                    out += ch;
                }
            }
            return out;
        }
        var map = _ctUtsStyles[style];
        if (!map) return input;
        var patch = _ctUtsPatches[style] || {};
        var out2 = '';
        for (var j = 0; j < input.length; j++) {
            var c = input.charCodeAt(j);
            var raw = input.charAt(j);
            if (patch[raw] != null) {
                out2 += String.fromCodePoint(patch[raw]);
            } else if (c >= 65 && c <= 90 && map.upper != null) {
                out2 += String.fromCodePoint(map.upper + (c - 65));
            } else if (c >= 97 && c <= 122 && map.lower != null) {
                out2 += String.fromCodePoint(map.lower + (c - 97));
            } else if (c >= 48 && c <= 57 && map.digit != null) {
                out2 += String.fromCodePoint(map.digit + (c - 48));
            } else {
                out2 += raw;
            }
        }
        return out2;
    }

    function _ctUtsDecorate(s, opts) {
        if (!s) return '';
        var combiners = '';
        if (opts.strike)    combiners += '̶';
        if (opts.underline) combiners += '̲';
        if (opts.overline)  combiners += '̅';
        if (!combiners) return s;
        var out = '';
        var arr = Array.from(s);
        for (var i = 0; i < arr.length; i++) {
            out += arr[i];
            if (arr[i] !== '\n' && arr[i] !== '\r') out += combiners;
        }
        return out;
    }

    function convert(input) {
        var style = (document.getElementById('uts-style') || {}).value || 'bold';
        var strike    = !!(document.getElementById('uts-strike')    || {}).checked;
        var underline = !!(document.getElementById('uts-underline') || {}).checked;
        var overline  = !!(document.getElementById('uts-overline')  || {}).checked;
        var styled = _ctUtsApply(input || '', style);
        return _ctUtsDecorate(styled, { strike: strike, underline: underline, overline: overline });
    }

    $(function(){
        $('#uts-style, #uts-strike, #uts-underline, #uts-overline').on('input change', function(){
            $('#box1').trigger('keyup');
        });
    });



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;

}