jzhw_uni/lib/wxParse/showdown.js

function getDefaultOpts(simple) {
    var defaultOptions = {
        omitExtraWLInCodeBlocks: {
            defaultValue: false,
            describe: 'Omit the default extra whiteline added to code blocks',
            type: 'boolean'
        },
        noHeaderId: {
            defaultValue: false,
            describe: 'Turn on/off generated header id',
            type: 'boolean'
        },
        prefixHeaderId: {
            defaultValue: false,
            describe: 'Specify a prefix to generated header ids',
            type: 'string'
        },
        headerLevelStart: {
            defaultValue: false,
            describe: 'The header blocks level start',
            type: 'integer'
        },
        parseImgDimensions: {
            defaultValue: false,
            describe: 'Turn on/off image dimension parsing',
            type: 'boolean'
        },
        simplifiedAutoLink: {
            defaultValue: false,
            describe: 'Turn on/off GFM autolink style',
            type: 'boolean'
        },
        literalMidWordUnderscores: {
            defaultValue: false,
            describe: 'Parse midword underscores as literal underscores',
            type: 'boolean'
        },
        strikethrough: {
            defaultValue: false,
            describe: 'Turn on/off strikethrough support',
            type: 'boolean'
        },
        tables: {
            defaultValue: false,
            describe: 'Turn on/off tables support',
            type: 'boolean'
        },
        tablesHeaderId: {
            defaultValue: false,
            describe: 'Add an id to table headers',
            type: 'boolean'
        },
        ghCodeBlocks: {
            defaultValue: true,
            describe: 'Turn on/off GFM fenced code blocks support',
            type: 'boolean'
        },
        tasklists: {
            defaultValue: false,
            describe: 'Turn on/off GFM tasklist support',
            type: 'boolean'
        },
        smoothLivePreview: {
            defaultValue: false,
            describe: 'Prevents weird effects in live previews due to incomplete input',
            type: 'boolean'
        },
        smartIndentationFix: {
            defaultValue: false,
            description: 'Tries to smartly fix identation in es6 strings',
            type: 'boolean'
        }
    };
    if (simple === false) {
        return JSON.parse(JSON.stringify(defaultOptions));
    }
    var ret = {};
    for (var opt in defaultOptions) {
        if (defaultOptions.hasOwnProperty(opt)) {
            ret[opt] = defaultOptions[opt].defaultValue;
        }
    }
    return ret;
}
var showdown = {};
var parsers = {};
var extensions = {};
var globalOptions = getDefaultOpts(true);
var flavor = {
    github: {
        omitExtraWLInCodeBlocks: true,
        prefixHeaderId: 'user-content-',
        simplifiedAutoLink: true,
        literalMidWordUnderscores: true,
        strikethrough: true,
        tables: true,
        tablesHeaderId: true,
        ghCodeBlocks: true,
        tasklists: true
    },
    vanilla: getDefaultOpts(true)
};
showdown.helper = {};
showdown.extensions = {};
showdown.setOption = function (key, value) {
    globalOptions[key] = value;
    return this;
};
showdown.getOption = function (key) {
    return globalOptions[key];
};
showdown.getOptions = function () {
    return globalOptions;
};
showdown.resetOptions = function () {
    globalOptions = getDefaultOpts(true);
};
showdown.setFlavor = function (name) {
    if (flavor.hasOwnProperty(name)) {
        var preset = flavor[name];
        for (var option in preset) {
            if (preset.hasOwnProperty(option)) {
                globalOptions[option] = preset[option];
            }
        }
    }
};
showdown.getDefaultOptions = function (simple) {
    return getDefaultOpts(simple);
};
showdown.subParser = function (name, func) {
    if (showdown.helper.isString(name)) {
        if (typeof func !== 'undefined') {
            parsers[name] = func;
        } else {
            if (parsers.hasOwnProperty(name)) {
                return parsers[name];
            } else {
                throw Error('SubParser named ' + name + ' not registered!');
            }
        }
    }
};
showdown.extension = function (name, ext) {
    if (!showdown.helper.isString(name)) {
        throw Error("Extension 'name' must be a string");
    }
    name = showdown.helper.stdExtName(name);
    if (showdown.helper.isUndefined(ext)) {
        if (!extensions.hasOwnProperty(name)) {
            throw Error('Extension named ' + name + ' is not registered!');
        }
        return extensions[name];
    } else {
        if (typeof ext === 'function') {
            ext = ext();
        }
        if (!showdown.helper.isArray(ext)) {
            ext = [ext];
        }
        var validExtension = validate(ext, name);
        if (validExtension.valid) {
            extensions[name] = ext;
        } else {
            throw Error(validExtension.error);
        }
    }
};
showdown.getAllExtensions = function () {
    return extensions;
};
showdown.removeExtension = function (name) {
    delete extensions[name];
};
showdown.resetExtensions = function () {
    extensions = {};
};
function validate(extension, name) {
    var errMsg = name ? 'Error in ' + name + ' extension->' : 'Error in unnamed extension';
    var ret = {
        valid: true,
        error: ''
    };
    if (!showdown.helper.isArray(extension)) {
        extension = [extension];
    }
    for (var i = 0; i < extension.length; ++i) {
        var baseMsg = errMsg + ' sub-extension ' + i + ': ';
        var ext = extension[i];
        if (typeof ext !== 'object') {
            ret.valid = false;
            ret.error = baseMsg + 'must be an object, but ' + typeof ext + ' given';
            return ret;
        }
        if (!showdown.helper.isString(ext.type)) {
            ret.valid = false;
            ret.error = baseMsg + 'property "type" must be a string, but ' + typeof ext.type + ' given';
            return ret;
        }
        var type = (ext.type = ext.type.toLowerCase());
        if (type === 'language') {
            type = ext.type = 'lang';
        }
        if (type === 'html') {
            type = ext.type = 'output';
        }
        if (type !== 'lang' && type !== 'output' && type !== 'listener') {
            ret.valid = false;
            ret.error = baseMsg + 'type ' + type + ' is not recognized. Valid values: "lang/language", "output/html" or "listener"';
            return ret;
        }
        if (type === 'listener') {
            if (showdown.helper.isUndefined(ext.listeners)) {
                ret.valid = false;
                ret.error = baseMsg + '. Extensions of type "listener" must have a property called "listeners"';
                return ret;
            }
        } else {
            if (showdown.helper.isUndefined(ext.filter) && showdown.helper.isUndefined(ext.regex)) {
                ret.valid = false;
                ret.error = baseMsg + type + ' extensions must define either a "regex" property or a "filter" method';
                return ret;
            }
        }
        if (ext.listeners) {
            if (typeof ext.listeners !== 'object') {
                ret.valid = false;
                ret.error = baseMsg + '"listeners" property must be an object but ' + typeof ext.listeners + ' given';
                return ret;
            }
            for (var ln in ext.listeners) {
                if (ext.listeners.hasOwnProperty(ln)) {
                    if (typeof ext.listeners[ln] !== 'function') {
                        ret.valid = false;
                        ret.error =
                            baseMsg +
                            '"listeners" property must be an hash of [event name]: [callback]. listeners.' +
                            ln +
                            ' must be a function but ' +
                            typeof ext.listeners[ln] +
                            ' given';
                        return ret;
                    }
                }
            }
        }
        if (ext.filter) {
            if (typeof ext.filter !== 'function') {
                ret.valid = false;
                ret.error = baseMsg + '"filter" must be a function, but ' + typeof ext.filter + ' given';
                return ret;
            }
        } else {
            if (ext.regex) {
                if (showdown.helper.isString(ext.regex)) {
                    ext.regex = new RegExp(ext.regex, 'g');
                }
                if (!ext.regex instanceof RegExp) {
                    ret.valid = false;
                    ret.error = baseMsg + '"regex" property must either be a string or a RegExp object, but ' + typeof ext.regex + ' given';
                    return ret;
                }
                if (showdown.helper.isUndefined(ext.replace)) {
                    ret.valid = false;
                    ret.error = baseMsg + '"regex" extensions must implement a replace string or function';
                    return ret;
                }
            }
        }
    }
    return ret;
}
showdown.validateExtension = function (ext) {
    var validateExtension = validate(ext, null);
    if (!validateExtension.valid) {
        console.warn(validateExtension.error);
        return false;
    }
    return true;
};
if (!showdown.hasOwnProperty('helper')) {
    showdown.helper = {};
}
showdown.helper.isString = function isString(a) {
    return typeof a === 'string' || a instanceof String;
};
showdown.helper.isFunction = function isFunction(a) {
    var getType = {};
    return a && getType.toString.call(a) === '[object Function]';
};
showdown.helper.forEach = function forEach(obj, callback) {
    if (typeof obj.forEach === 'function') {
        obj.forEach(callback);
    } else {
        for (var i = 0; i < obj.length; i++) {
            callback(obj[i], i, obj);
        }
    }
};
showdown.helper.isArray = function isArray(a) {
    return a.constructor === Array;
};
showdown.helper.isUndefined = function isUndefined(value) {
    return typeof value === 'undefined';
};
showdown.helper.stdExtName = function (s) {
    return s.replace(/[_-]||\s/g, '').toLowerCase();
};
function escapeCharactersCallback(wholeMatch, m1) {
    var charCodeToEscape = m1.charCodeAt(0);
    return '~E' + charCodeToEscape + 'E';
}
showdown.helper.escapeCharactersCallback = escapeCharactersCallback;
showdown.helper.escapeCharacters = function escapeCharacters(text, charsToEscape, afterBackslash) {
    var regexString = '([' + charsToEscape.replace(/([\[\]\\])/g, '\\$1') + '])';
    if (afterBackslash) {
        regexString = '\\\\' + regexString;
    }
    var regex = new RegExp(regexString, 'g');
    text = text.replace(regex, escapeCharactersCallback);
    return text;
};
var rgxFindMatchPos = function (str, left, right, flags) {
    var f = flags || '';
    var g = f.indexOf('g') > -1;
    var x = new RegExp(left + '|' + right, 'g' + f.replace(/g/g, ''));
    var l = new RegExp(left, f.replace(/g/g, ''));
    var pos = [];
    var t;
    var s;
    var m;
    var start;
    var end;
    do {
        t = 0;
        while ((m = x.exec(str))) {
            if (l.test(m[0])) {
                if (!t++) {
                    s = x.lastIndex;
                    start = s - m[0].length;
                }
            } else {
                if (t) {
                    if (!--t) {
                        end = m.index + m[0].length;
                        var obj = {
                            left: {
                                start: start,
                                end: s
                            },
                            match: {
                                start: s,
                                end: m.index
                            },
                            right: {
                                start: m.index,
                                end: end
                            },
                            wholeMatch: {
                                start: start,
                                end: end
                            }
                        };
                        pos.push(obj);
                        if (!g) {
                            return pos;
                        }
                    }
                }
            }
        }
    } while (t && (x.lastIndex = s));
    return pos;
};
showdown.helper.matchRecursiveRegExp = function (str, left, right, flags) {
    var matchPos = rgxFindMatchPos(str, left, right, flags);
    var results = [];
    for (var i = 0; i < matchPos.length; ++i) {
        results.push([
            str.slice(matchPos[i].wholeMatch.start, matchPos[i].wholeMatch.end),
            str.slice(matchPos[i].match.start, matchPos[i].match.end),
            str.slice(matchPos[i].left.start, matchPos[i].left.end),
            str.slice(matchPos[i].right.start, matchPos[i].right.end)
        ]);
    }
    return results;
};
showdown.helper.replaceRecursiveRegExp = function (str, replacement, left, right, flags) {
    if (!showdown.helper.isFunction(replacement)) {
        var repStr = replacement;
        replacement = function () {
            return repStr;
        };
    }
    var matchPos = rgxFindMatchPos(str, left, right, flags);
    var finalStr = str;
    var lng = matchPos.length;
    if (lng > 0) {
        var bits = [];
        if (matchPos[0].wholeMatch.start !== 0) {
            bits.push(str.slice(0, matchPos[0].wholeMatch.start));
        }
        for (var i = 0; i < lng; ++i) {
            bits.push(
                replacement(
                    str.slice(matchPos[i].wholeMatch.start, matchPos[i].wholeMatch.end),
                    str.slice(matchPos[i].match.start, matchPos[i].match.end),
                    str.slice(matchPos[i].left.start, matchPos[i].left.end),
                    str.slice(matchPos[i].right.start, matchPos[i].right.end)
                )
            );
            if (i < lng - 1) {
                bits.push(str.slice(matchPos[i].wholeMatch.end, matchPos[i + 1].wholeMatch.start));
            }
        }
        if (matchPos[lng - 1].wholeMatch.end < str.length) {
            bits.push(str.slice(matchPos[lng - 1].wholeMatch.end));
        }
        finalStr = bits.join('');
    }
    return finalStr;
};
if (showdown.helper.isUndefined(console)) {
    console = {
        warn: function (msg) {
            alert(msg);
        },
        log: function (msg) {
            alert(msg);
        },
        error: function (msg) {
            throw msg;
        }
    };
}
showdown.Converter = function (converterOptions) {
    var options = {};
    var langExtensions = [];
    var outputModifiers = [];
    var listeners = {};
    _constructor();
    function _constructor() {
        converterOptions = converterOptions || {};
        for (var gOpt in globalOptions) {
            if (globalOptions.hasOwnProperty(gOpt)) {
                options[gOpt] = globalOptions[gOpt];
            }
        }
        if (typeof converterOptions === 'object') {
            for (var opt in converterOptions) {
                if (converterOptions.hasOwnProperty(opt)) {
                    options[opt] = converterOptions[opt];
                }
            }
        } else {
            throw Error('Converter expects the passed parameter to be an object, but ' + typeof converterOptions + ' was passed instead.');
        }
        if (options.extensions) {
            showdown.helper.forEach(options.extensions, _parseExtension);
        }
    }
    function _parseExtension(ext, name) {
        name = name || null;
        if (showdown.helper.isString(ext)) {
            ext = showdown.helper.stdExtName(ext);
            name = ext;
            if (showdown.extensions[ext]) {
                console.warn(
                    'DEPRECATION WARNING: ' +
                        ext +
                        ' is an old extension that uses a deprecated loading method.' +
                        'Please inform the developer that the extension should be updated!'
                );
                legacyExtensionLoading(showdown.extensions[ext], ext);
                return;
            } else {
                if (!showdown.helper.isUndefined(extensions[ext])) {
                    ext = extensions[ext];
                } else {
                    throw Error('Extension "' + ext + '" could not be loaded. It was either not found or is not a valid extension.');
                }
            }
        }
        if (typeof ext === 'function') {
            ext = ext();
        }
        if (!showdown.helper.isArray(ext)) {
            ext = [ext];
        }
        var validExt = validate(ext, name);
        if (!validExt.valid) {
            throw Error(validExt.error);
        }
        for (var i = 0; i < ext.length; ++i) {
            switch (ext[i].type) {
                case 'lang':
                    langExtensions.push(ext[i]);
                    break;
                case 'output':
                    outputModifiers.push(ext[i]);
                    break;
            }
            if (ext[i].hasOwnProperty(listeners)) {
                for (var ln in ext[i].listeners) {
                    if (ext[i].listeners.hasOwnProperty(ln)) {
                        listen(ln, ext[i].listeners[ln]);
                    }
                }
            }
        }
    }
    function legacyExtensionLoading(ext, name) {
        if (typeof ext === 'function') {
            ext = ext(new showdown.Converter());
        }
        if (!showdown.helper.isArray(ext)) {
            ext = [ext];
        }
        var valid = validate(ext, name);
        if (!valid.valid) {
            throw Error(valid.error);
        }
        for (var i = 0; i < ext.length; ++i) {
            switch (ext[i].type) {
                case 'lang':
                    langExtensions.push(ext[i]);
                    break;
                case 'output':
                    outputModifiers.push(ext[i]);
                    break;
                default:
                    throw Error('Extension loader error: Type unrecognized!!!');
            }
        }
    }
    function listen(name, callback) {
        if (!showdown.helper.isString(name)) {
            throw Error('Invalid argument in converter.listen() method: name must be a string, but ' + typeof name + ' given');
        }
        if (typeof callback !== 'function') {
            throw Error('Invalid argument in converter.listen() method: callback must be a function, but ' + typeof callback + ' given');
        }
        if (!listeners.hasOwnProperty(name)) {
            listeners[name] = [];
        }
        listeners[name].push(callback);
    }
    function rTrimInputText(text) {
        var rsp = text.match(/^\s*/)[0].length;
        var rgx = new RegExp('^\\s{0,' + rsp + '}', 'gm');
        return text.replace(rgx, '');
    }
    this._dispatch = function dispatch(evtName, text, options, globals) {
        if (listeners.hasOwnProperty(evtName)) {
            for (var ei = 0; ei < listeners[evtName].length; ++ei) {
                var nText = listeners[evtName][ei](evtName, text, this, options, globals);
                if (nText && typeof nText !== 'undefined') {
                    text = nText;
                }
            }
        }
        return text;
    };
    this.listen = function (name, callback) {
        listen(name, callback);
        return this;
    };
    this.makeHtml = function (text) {
        if (!text) {
            return text;
        }
        var globals = {
            gHtmlBlocks: [],
            gHtmlMdBlocks: [],
            gHtmlSpans: [],
            gUrls: {},
            gTitles: {},
            gDimensions: {},
            gListLevel: 0,
            hashLinkCounts: {},
            langExtensions: langExtensions,
            outputModifiers: outputModifiers,
            converter: this,
            ghCodeBlocks: []
        };
        text = text.replace(/~/g, '~T');
        text = text.replace(/\$/g, '~D');
        text = text.replace(/\r\n/g, '\n');
        text = text.replace(/\r/g, '\n');
        if (options.smartIndentationFix) {
            text = rTrimInputText(text);
        }
        text = text;
        text = showdown.subParser('detab')(text, options, globals);
        text = showdown.subParser('stripBlankLines')(text, options, globals);
        showdown.helper.forEach(langExtensions, function (ext) {
            text = showdown.subParser('runExtension')(ext, text, options, globals);
        });
        text = showdown.subParser('hashPreCodeTags')(text, options, globals);
        text = showdown.subParser('githubCodeBlocks')(text, options, globals);
        text = showdown.subParser('hashHTMLBlocks')(text, options, globals);
        text = showdown.subParser('hashHTMLSpans')(text, options, globals);
        text = showdown.subParser('stripLinkDefinitions')(text, options, globals);
        text = showdown.subParser('blockGamut')(text, options, globals);
        text = showdown.subParser('unhashHTMLSpans')(text, options, globals);
        text = showdown.subParser('unescapeSpecialChars')(text, options, globals);
        text = text.replace(/~D/g, '$$');
        text = text.replace(/~T/g, '~');
        showdown.helper.forEach(outputModifiers, function (ext) {
            text = showdown.subParser('runExtension')(ext, text, options, globals);
        });
        return text;
    };
    this.setOption = function (key, value) {
        options[key] = value;
    };
    this.getOption = function (key) {
        return options[key];
    };
    this.getOptions = function () {
        return options;
    };
    this.addExtension = function (extension, name) {
        name = name || null;
        _parseExtension(extension, name);
    };
    this.useExtension = function (extensionName) {
        _parseExtension(extensionName);
    };
    this.setFlavor = function (name) {
        if (flavor.hasOwnProperty(name)) {
            var preset = flavor[name];
            for (var option in preset) {
                if (preset.hasOwnProperty(option)) {
                    options[option] = preset[option];
                }
            }
        }
    };
    this.removeExtension = function (extension) {
        if (!showdown.helper.isArray(extension)) {
            extension = [extension];
        }
        for (var a = 0; a < extension.length; ++a) {
            var ext = extension[a];
            for (var i = 0; i < langExtensions.length; ++i) {
                if (langExtensions[i] === ext) {
                    langExtensions[i].splice(i, 1);
                }
            }
            for (var ii = 0; ii < outputModifiers.length; ++i) {
                if (outputModifiers[ii] === ext) {
                    outputModifiers[ii].splice(i, 1);
                }
            }
        }
    };
    this.getAllExtensions = function () {
        return {
            language: langExtensions,
            output: outputModifiers
        };
    };
};
showdown.subParser('anchors', function (text, options, globals) {
    text = globals.converter._dispatch('anchors.before', text, options, globals);
    var writeAnchorTag = function (wholeMatch, m1, m2, m3, m4, m5, m6, m7) {
        if (showdown.helper.isUndefined(m7)) {
            m7 = '';
        }
        wholeMatch = m1;
        var linkText = m2;
        var linkId = m3.toLowerCase();
        var url = m4;
        var title = m7;
        if (!url) {
            if (!linkId) {
                linkId = linkText.toLowerCase().replace(/ ?\n/g, ' ');
            }
            url = '#' + linkId;
            if (!showdown.helper.isUndefined(globals.gUrls[linkId])) {
                url = globals.gUrls[linkId];
                if (!showdown.helper.isUndefined(globals.gTitles[linkId])) {
                    title = globals.gTitles[linkId];
                }
            } else {
                if (wholeMatch.search(/\(\s*\)$/m) > -1) {
                    url = '';
                } else {
                    return wholeMatch;
                }
            }
        }
        url = showdown.helper.escapeCharacters(url, '*_', false);
        var result = '<a href="' + url + '"';
        if (title !== '' && title !== null) {
            title = title.replace(/"/g, '&quot;');
            title = showdown.helper.escapeCharacters(title, '*_', false);
            result += ' title="' + title + '"';
        }
        result += '>' + linkText + '</a>';
        return result;
    };
    text = text.replace(/(\[((?:\[[^\]]*]|[^\[\]])*)][ ]?(?:\n[ ]*)?\[(.*?)])()()()()/g, writeAnchorTag);
    text = text.replace(/(\[((?:\[[^\]]*]|[^\[\]])*)]\([ \t]*()<?(.*?(?:\(.*?\).*?)?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeAnchorTag);
    text = text.replace(/(\[([^\[\]]+)])()()()()()/g, writeAnchorTag);
    text = globals.converter._dispatch('anchors.after', text, options, globals);
    return text;
});
showdown.subParser('autoLinks', function (text, options, globals) {
    text = globals.converter._dispatch('autoLinks.before', text, options, globals);
    var simpleURLRegex = /\b(((https?|ftp|dict):\/\/|www\.)[^'">\s]+\.[^'">\s]+)(?=\s|$)(?!["<>])/gi;
    var delimUrlRegex = /<(((https?|ftp|dict):\/\/|www\.)[^'">\s]+)>/gi;
    var simpleMailRegex = /(?:^|[ \n\t])([A-Za-z0-9!#$%&'*+-/=?^_`\{|}~\.]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)(?:$|[ \n\t])/gi;
    var delimMailRegex = /<(?:mailto:)?([-.\w]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi;
    text = text.replace(delimUrlRegex, replaceLink);
    text = text.replace(delimMailRegex, replaceMail);
    if (options.simplifiedAutoLink) {
        text = text.replace(simpleURLRegex, replaceLink);
        text = text.replace(simpleMailRegex, replaceMail);
    }
    function replaceLink(wm, link) {
        var lnkTxt = link;
        if (/^www\./i.test(link)) {
            link = link.replace(/^www\./i, 'http://www.');
        }
        return '<a href="' + link + '">' + lnkTxt + '</a>';
    }
    function replaceMail(wholeMatch, m1) {
        var unescapedStr = showdown.subParser('unescapeSpecialChars')(m1);
        return showdown.subParser('encodeEmailAddress')(unescapedStr);
    }
    text = globals.converter._dispatch('autoLinks.after', text, options, globals);
    return text;
});
showdown.subParser('blockGamut', function (text, options, globals) {
    text = globals.converter._dispatch('blockGamut.before', text, options, globals);
    text = showdown.subParser('blockQuotes')(text, options, globals);
    text = showdown.subParser('headers')(text, options, globals);
    var key = showdown.subParser('hashBlock')('<hr />', options, globals);
    text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm, key);
    text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm, key);
    text = text.replace(/^[ ]{0,2}([ ]?_[ ]?){3,}[ \t]*$/gm, key);
    text = showdown.subParser('lists')(text, options, globals);
    text = showdown.subParser('codeBlocks')(text, options, globals);
    text = showdown.subParser('tables')(text, options, globals);
    text = showdown.subParser('hashHTMLBlocks')(text, options, globals);
    text = showdown.subParser('paragraphs')(text, options, globals);
    text = globals.converter._dispatch('blockGamut.after', text, options, globals);
    return text;
});
showdown.subParser('blockQuotes', function (text, options, globals) {
    text = globals.converter._dispatch('blockQuotes.before', text, options, globals);
    text = text.replace(/((^[ \t]{0,3}>[ \t]?.+\n(.+\n)*\n*)+)/gm, function (wholeMatch, m1) {
        var bq = m1;
        bq = bq.replace(/^[ \t]*>[ \t]?/gm, '~0');
        bq = bq.replace(/~0/g, '');
        bq = bq.replace(/^[ \t]+$/gm, '');
        bq = showdown.subParser('githubCodeBlocks')(bq, options, globals);
        bq = showdown.subParser('blockGamut')(bq, options, globals);
        bq = bq.replace(/(^|\n)/g, '$1  ');
        bq = bq.replace(/(\s*<pre>[^\r]+?<\/pre>)/gm, function (wholeMatch, m1) {
            var pre = m1;
            pre = pre.replace(/^  /gm, '~0');
            pre = pre.replace(/~0/g, '');
            return pre;
        });
        return showdown.subParser('hashBlock')('<blockquote>\n' + bq + '\n</blockquote>', options, globals);
    });
    text = globals.converter._dispatch('blockQuotes.after', text, options, globals);
    return text;
});
showdown.subParser('codeBlocks', function (text, options, globals) {
    text = globals.converter._dispatch('codeBlocks.before', text, options, globals);
    text += '~0';
    var pattern = /(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g;
    text = text.replace(pattern, function (wholeMatch, m1, m2) {
        var codeblock = m1;
        var nextChar = m2;
        var end = '\n';
        codeblock = showdown.subParser('outdent')(codeblock);
        codeblock = showdown.subParser('encodeCode')(codeblock);
        codeblock = showdown.subParser('detab')(codeblock);
        codeblock = codeblock.replace(/^\n+/g, '');
        codeblock = codeblock.replace(/\n+$/g, '');
        if (options.omitExtraWLInCodeBlocks) {
            end = '';
        }
        codeblock = '<pre><code>' + codeblock + end + '</code></pre>';
        return showdown.subParser('hashBlock')(codeblock, options, globals) + nextChar;
    });
    text = text.replace(/~0/, '');
    text = globals.converter._dispatch('codeBlocks.after', text, options, globals);
    return text;
});
showdown.subParser('codeSpans', function (text, options, globals) {
    text = globals.converter._dispatch('codeSpans.before', text, options, globals);
    if (typeof text === 'undefined') {
        text = '';
    }
    text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm, function (wholeMatch, m1, m2, m3) {
        var c = m3;
        c = c.replace(/^([ \t]*)/g, '');
        c = c.replace(/[ \t]*$/g, '');
        c = showdown.subParser('encodeCode')(c);
        return m1 + '<code>' + c + '</code>';
    });
    text = globals.converter._dispatch('codeSpans.after', text, options, globals);
    return text;
});
showdown.subParser('detab', function (text) {
    text = text.replace(/\t(?=\t)/g, '    ');
    text = text.replace(/\t/g, '~A~B');
    text = text.replace(/~B(.+?)~A/g, function (wholeMatch, m1) {
        var leadingText = m1;
        var numSpaces = 4 - (leadingText.length % 4);
        for (var i = 0; i < numSpaces; i++) {
            leadingText += ' ';
        }
        return leadingText;
    });
    text = text.replace(/~A/g, '    ');
    text = text.replace(/~B/g, '');
    return text;
});
showdown.subParser('encodeAmpsAndAngles', function (text) {
    text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, '&amp;');
    text = text.replace(/<(?![a-z\/?\$!])/gi, '&lt;');
    return text;
});
showdown.subParser('encodeBackslashEscapes', function (text) {
    text = text.replace(/\\(\\)/g, showdown.helper.escapeCharactersCallback);
    text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g, showdown.helper.escapeCharactersCallback);
    return text;
});
showdown.subParser('encodeCode', function (text) {
    text = text.replace(/&/g, '&amp;');
    text = text.replace(/</g, '&lt;');
    text = text.replace(/>/g, '&gt;');
    text = showdown.helper.escapeCharacters(text, '*_{}[]\\', false);
    return text;
});
showdown.subParser('encodeEmailAddress', function (addr) {
    var encode = [
        function (ch) {
            return '&#' + ch.charCodeAt(0) + ';';
        },
        function (ch) {
            return '&#x' + ch.charCodeAt(0).toString(16) + ';';
        },
        function (ch) {
            return ch;
        }
    ];
    addr = 'mailto:' + addr;
    addr = addr.replace(/./g, function (ch) {
        if (ch === '@') {
            ch = encode[Math.floor(Math.random() * 2)](ch);
        } else {
            if (ch !== ':') {
                var r = Math.random();
                ch = r > 0.9 ? encode[2](ch) : r > 0.45 ? encode[1](ch) : encode[0](ch);
            }
        }
        return ch;
    });
    addr = '<a href="' + addr + '">' + addr + '</a>';
    addr = addr.replace(/">.+:/g, '">');
    return addr;
});
showdown.subParser('escapeSpecialCharsWithinTagAttributes', function (text) {
    var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--.*?--\s*)+>)/gi;
    text = text.replace(regex, function (wholeMatch) {
        var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g, '$1`');
        tag = showdown.helper.escapeCharacters(tag, '\\`*_', false);
        return tag;
    });
    return text;
});
showdown.subParser('githubCodeBlocks', function (text, options, globals) {
    if (!options.ghCodeBlocks) {
        return text;
    }
    text = globals.converter._dispatch('githubCodeBlocks.before', text, options, globals);
    text += '~0';
    text = text.replace(/(?:^|\n)```(.*)\n([\s\S]*?)\n```/g, function (wholeMatch, language, codeblock) {
        var end = options.omitExtraWLInCodeBlocks ? '' : '\n';
        codeblock = showdown.subParser('encodeCode')(codeblock);
        codeblock = showdown.subParser('detab')(codeblock);
        codeblock = codeblock.replace(/^\n+/g, '');
        codeblock = codeblock.replace(/\n+$/g, '');
        codeblock = '<pre><code' + (language ? ' class="' + language + ' language-' + language + '"' : '') + '>' + codeblock + end + '</code></pre>';
        codeblock = showdown.subParser('hashBlock')(codeblock, options, globals);
        return (
            '\n\n~G' +
            (globals.ghCodeBlocks.push({
                text: wholeMatch,
                codeblock: codeblock
            }) -
                1) +
            'G\n\n'
        );
    });
    text = text.replace(/~0/, '');
    return globals.converter._dispatch('githubCodeBlocks.after', text, options, globals);
});
showdown.subParser('hashBlock', function (text, options, globals) {
    text = text.replace(/(^\n+|\n+$)/g, '');
    return '\n\n~K' + (globals.gHtmlBlocks.push(text) - 1) + 'K\n\n';
});
showdown.subParser('hashElement', function (text, options, globals) {
    return function (wholeMatch, m1) {
        var blockText = m1;
        blockText = blockText.replace(/\n\n/g, '\n');
        blockText = blockText.replace(/^\n/, '');
        blockText = blockText.replace(/\n+$/g, '');
        blockText = '\n\n~K' + (globals.gHtmlBlocks.push(blockText) - 1) + 'K\n\n';
        return blockText;
    };
});
showdown.subParser('hashHTMLBlocks', function (text, options, globals) {
    var blockTags = [
        'pre',
        'div',
        'h1',
        'h2',
        'h3',
        'h4',
        'h5',
        'h6',
        'blockquote',
        'table',
        'dl',
        'ol',
        'ul',
        'script',
        'noscript',
        'form',
        'fieldset',
        'iframe',
        'math',
        'style',
        'section',
        'header',
        'footer',
        'nav',
        'article',
        'aside',
        'address',
        'audio',
        'canvas',
        'figure',
        'hgroup',
        'output',
        'video',
        'p'
    ];
    var repFunc = function (wholeMatch, match, left, right) {
        var txt = wholeMatch;
        if (left.search(/\bmarkdown\b/) !== -1) {
            txt = left + globals.converter.makeHtml(match) + right;
        }
        return '\n\n~K' + (globals.gHtmlBlocks.push(txt) - 1) + 'K\n\n';
    };
    for (var i = 0; i < blockTags.length; ++i) {
        text = showdown.helper.replaceRecursiveRegExp(text, repFunc, '^(?: |\\t){0,3}<' + blockTags[i] + '\\b[^>]*>', '</' + blockTags[i] + '>', 'gim');
    }
    text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g, showdown.subParser('hashElement')(text, options, globals));
    text = text.replace(/(<!--[\s\S]*?-->)/g, showdown.subParser('hashElement')(text, options, globals));
    text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g, showdown.subParser('hashElement')(text, options, globals));
    return text;
});
showdown.subParser('hashHTMLSpans', function (text, config, globals) {
    var matches = showdown.helper.matchRecursiveRegExp(text, '<code\\b[^>]*>', '</code>', 'gi');
    for (var i = 0; i < matches.length; ++i) {
        text = text.replace(matches[i][0], '~L' + (globals.gHtmlSpans.push(matches[i][0]) - 1) + 'L');
    }
    return text;
});
showdown.subParser('unhashHTMLSpans', function (text, config, globals) {
    for (var i = 0; i < globals.gHtmlSpans.length; ++i) {
        text = text.replace('~L' + i + 'L', globals.gHtmlSpans[i]);
    }
    return text;
});
showdown.subParser('hashPreCodeTags', function (text, config, globals) {
    var repFunc = function (wholeMatch, match, left, right) {
        var codeblock = left + showdown.subParser('encodeCode')(match) + right;
        return (
            '\n\n~G' +
            (globals.ghCodeBlocks.push({
                text: wholeMatch,
                codeblock: codeblock
            }) -
                1) +
            'G\n\n'
        );
    };
    text = showdown.helper.replaceRecursiveRegExp(text, repFunc, '^(?: |\\t){0,3}<pre\\b[^>]*>\\s*<code\\b[^>]*>', '^(?: |\\t){0,3}</code>\\s*</pre>', 'gim');
    return text;
});
showdown.subParser('headers', function (text, options, globals) {
    text = globals.converter._dispatch('headers.before', text, options, globals);
    var prefixHeader = options.prefixHeaderId;
    var headerLevelStart = isNaN(parseInt(options.headerLevelStart)) ? 1 : parseInt(options.headerLevelStart);
    var setextRegexH1 = options.smoothLivePreview ? /^(.+)[ \t]*\n={2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n=+[ \t]*\n+/gm;
    var setextRegexH2 = options.smoothLivePreview ? /^(.+)[ \t]*\n-{2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n-+[ \t]*\n+/gm;
    text = text.replace(setextRegexH1, function (wholeMatch, m1) {
        var spanGamut = showdown.subParser('spanGamut')(m1, options, globals);
        var hID = options.noHeaderId ? '' : ' id="' + headerId(m1) + '"';
        var hLevel = headerLevelStart;
        var hashBlock = '<h' + hLevel + hID + '>' + spanGamut + '</h' + hLevel + '>';
        return showdown.subParser('hashBlock')(hashBlock, options, globals);
    });
    text = text.replace(setextRegexH2, function (matchFound, m1) {
        var spanGamut = showdown.subParser('spanGamut')(m1, options, globals);
        var hID = options.noHeaderId ? '' : ' id="' + headerId(m1) + '"';
        var hLevel = headerLevelStart + 1;
        var hashBlock = '<h' + hLevel + hID + '>' + spanGamut + '</h' + hLevel + '>';
        return showdown.subParser('hashBlock')(hashBlock, options, globals);
    });
    text = text.replace(/^(#{1,6})[ \t]*(.+?)[ \t]*#*\n+/gm, function (wholeMatch, m1, m2) {
        var span = showdown.subParser('spanGamut')(m2, options, globals);
        var hID = options.noHeaderId ? '' : ' id="' + headerId(m2) + '"';
        var hLevel = headerLevelStart - 1 + m1.length;
        var header = '<h' + hLevel + hID + '>' + span + '</h' + hLevel + '>';
        return showdown.subParser('hashBlock')(header, options, globals);
    });
    function headerId(m) {
        var title;
        var escapedId = m.replace(/[^\w]/g, '').toLowerCase();
        if (globals.hashLinkCounts[escapedId]) {
            title = escapedId + '-' + globals.hashLinkCounts[escapedId]++;
        } else {
            title = escapedId;
            globals.hashLinkCounts[escapedId] = 1;
        }
        if (prefixHeader === true) {
            prefixHeader = 'section';
        }
        if (showdown.helper.isString(prefixHeader)) {
            return prefixHeader + title;
        }
        return title;
    }
    text = globals.converter._dispatch('headers.after', text, options, globals);
    return text;
});
showdown.subParser('images', function (text, options, globals) {
    text = globals.converter._dispatch('images.before', text, options, globals);
    var inlineRegExp = /!\[(.*?)]\s?\([ \t]*()<?(\S+?)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(['"])(.*?)\6[ \t]*)?\)/g;
    var referenceRegExp = /!\[([^\]]*?)] ?(?:\n *)?\[(.*?)]()()()()()/g;
    function writeImageTag(wholeMatch, altText, linkId, url, width, height, m5, title) {
        var gUrls = globals.gUrls;
        var gTitles = globals.gTitles;
        var gDims = globals.gDimensions;
        linkId = linkId.toLowerCase();
        if (!title) {
            title = '';
        }
        if (url === '' || url === null) {
            if (linkId === '' || linkId === null) {
                linkId = altText.toLowerCase().replace(/ ?\n/g, ' ');
            }
            url = '#' + linkId;
            if (!showdown.helper.isUndefined(gUrls[linkId])) {
                url = gUrls[linkId];
                if (!showdown.helper.isUndefined(gTitles[linkId])) {
                    title = gTitles[linkId];
                }
                if (!showdown.helper.isUndefined(gDims[linkId])) {
                    width = gDims[linkId].width;
                    height = gDims[linkId].height;
                }
            } else {
                return wholeMatch;
            }
        }
        altText = altText.replace(/"/g, '&quot;');
        altText = showdown.helper.escapeCharacters(altText, '*_', false);
        url = showdown.helper.escapeCharacters(url, '*_', false);
        var result = '<img src="' + url + '" alt="' + altText + '"';
        if (title) {
            title = title.replace(/"/g, '&quot;');
            title = showdown.helper.escapeCharacters(title, '*_', false);
            result += ' title="' + title + '"';
        }
        if (width && height) {
            width = width === '*' ? 'auto' : width;
            height = height === '*' ? 'auto' : height;
            result += ' width="' + width + '"';
            result += ' height="' + height + '"';
        }
        result += ' />';
        return result;
    }
    text = text.replace(referenceRegExp, writeImageTag);
    text = text.replace(inlineRegExp, writeImageTag);
    text = globals.converter._dispatch('images.after', text, options, globals);
    return text;
});
showdown.subParser('italicsAndBold', function (text, options, globals) {
    text = globals.converter._dispatch('italicsAndBold.before', text, options, globals);
    if (options.literalMidWordUnderscores) {
        text = text.replace(/(^|\s|>|\b)__(?=\S)([\s\S]+?)__(?=\b|<|\s|$)/gm, '$1<strong>$2</strong>');
        text = text.replace(/(^|\s|>|\b)_(?=\S)([\s\S]+?)_(?=\b|<|\s|$)/gm, '$1<em>$2</em>');
        text = text.replace(/(\*\*)(?=\S)([^\r]*?\S[*]*)\1/g, '<strong>$2</strong>');
        text = text.replace(/(\*)(?=\S)([^\r]*?\S)\1/g, '<em>$2</em>');
    } else {
        text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g, '<strong>$2</strong>');
        text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g, '<em>$2</em>');
    }
    text = globals.converter._dispatch('italicsAndBold.after', text, options, globals);
    return text;
});
showdown.subParser('lists', function (text, options, globals) {
    text = globals.converter._dispatch('lists.before', text, options, globals);
    function processListItems(listStr, trimTrailing) {
        globals.gListLevel++;
        listStr = listStr.replace(/\n{2,}$/, '\n');
        listStr += '~0';
        var rgx = /(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+((\[(x|X| )?])?[ \t]*[^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm;
        var isParagraphed = /\n[ \t]*\n(?!~0)/.test(listStr);
        listStr = listStr.replace(rgx, function (wholeMatch, m1, m2, m3, m4, taskbtn, checked) {
            checked = checked && checked.trim() !== '';
            var item = showdown.subParser('outdent')(m4, options, globals);
            var bulletStyle = '';
            if (taskbtn && options.tasklists) {
                bulletStyle = ' class="task-list-item" style="list-style-type: none;"';
                item = item.replace(/^[ \t]*\[(x|X| )?]/m, function () {
                    var otp = '<input type="checkbox" disabled style="margin: 0px 0.35em 0.25em -1.6em; vertical-align: middle;"';
                    if (checked) {
                        otp += ' checked';
                    }
                    otp += '>';
                    return otp;
                });
            }
            if (m1 || item.search(/\n{2,}/) > -1) {
                item = showdown.subParser('githubCodeBlocks')(item, options, globals);
                item = showdown.subParser('blockGamut')(item, options, globals);
            } else {
                item = showdown.subParser('lists')(item, options, globals);
                item = item.replace(/\n$/, '');
                if (isParagraphed) {
                    item = showdown.subParser('paragraphs')(item, options, globals);
                } else {
                    item = showdown.subParser('spanGamut')(item, options, globals);
                }
            }
            item = '\n<li' + bulletStyle + '>' + item + '</li>\n';
            return item;
        });
        listStr = listStr.replace(/~0/g, '');
        globals.gListLevel--;
        if (trimTrailing) {
            listStr = listStr.replace(/\s+$/, '');
        }
        return listStr;
    }
    function parseConsecutiveLists(list, listType, trimTrailing) {
        var counterRxg = listType === 'ul' ? /^ {0,2}\d+\.[ \t]/gm : /^ {0,2}[*+-][ \t]/gm;
        var subLists = [];
        var result = '';
        if (list.search(counterRxg) !== -1) {
            (function parseCL(txt) {
                var pos = txt.search(counterRxg);
                if (pos !== -1) {
                    result += '\n\n<' + listType + '>' + processListItems(txt.slice(0, pos), !!trimTrailing) + '</' + listType + '>\n\n';
                    listType = listType === 'ul' ? 'ol' : 'ul';
                    counterRxg = listType === 'ul' ? /^ {0,2}\d+\.[ \t]/gm : /^ {0,2}[*+-][ \t]/gm;
                    parseCL(txt.slice(pos));
                } else {
                    result += '\n\n<' + listType + '>' + processListItems(txt, !!trimTrailing) + '</' + listType + '>\n\n';
                }
            })(list);
            for (var i = 0; i < subLists.length; ++i) {}
        } else {
            result = '\n\n<' + listType + '>' + processListItems(list, !!trimTrailing) + '</' + listType + '>\n\n';
        }
        return result;
    }
    text += '~0';
    var wholeList = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
    if (globals.gListLevel) {
        text = text.replace(wholeList, function (wholeMatch, list, m2) {
            var listType = m2.search(/[*+-]/g) > -1 ? 'ul' : 'ol';
            return parseConsecutiveLists(list, listType, true);
        });
    } else {
        wholeList = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
        text = text.replace(wholeList, function (wholeMatch, m1, list, m3) {
            var listType = m3.search(/[*+-]/g) > -1 ? 'ul' : 'ol';
            return parseConsecutiveLists(list, listType);
        });
    }
    text = text.replace(/~0/, '');
    text = globals.converter._dispatch('lists.after', text, options, globals);
    return text;
});
showdown.subParser('outdent', function (text) {
    text = text.replace(/^(\t|[ ]{1,4})/gm, '~0');
    text = text.replace(/~0/g, '');
    return text;
});
showdown.subParser('paragraphs', function (text, options, globals) {
    text = globals.converter._dispatch('paragraphs.before', text, options, globals);
    text = text.replace(/^\n+/g, '');
    text = text.replace(/\n+$/g, '');
    var grafs = text.split(/\n{2,}/g);
    var grafsOut = [];
    var end = grafs.length;
    for (var i = 0; i < end; i++) {
        var str = grafs[i];
        if (str.search(/~(K|G)(\d+)\1/g) >= 0) {
            grafsOut.push(str);
        } else {
            str = showdown.subParser('spanGamut')(str, options, globals);
            str = str.replace(/^([ \t]*)/g, '<p>');
            str += '</p>';
            grafsOut.push(str);
        }
    }
    end = grafsOut.length;
    for (i = 0; i < end; i++) {
        var blockText = '';
        var grafsOutIt = grafsOut[i];
        var codeFlag = false;
        while (grafsOutIt.search(/~(K|G)(\d+)\1/) >= 0) {
            var delim = RegExp.$1;
            var num = RegExp.$2;
            if (delim === 'K') {
                blockText = globals.gHtmlBlocks[num];
            } else {
                if (codeFlag) {
                    blockText = showdown.subParser('encodeCode')(globals.ghCodeBlocks[num].text);
                } else {
                    blockText = globals.ghCodeBlocks[num].codeblock;
                }
            }
            blockText = blockText.replace(/\$/g, '$$$$');
            grafsOutIt = grafsOutIt.replace(/(\n\n)?~(K|G)\d+\2(\n\n)?/, blockText);
            if (/^<pre\b[^>]*>\s*<code\b[^>]*>/.test(grafsOutIt)) {
                codeFlag = true;
            }
        }
        grafsOut[i] = grafsOutIt;
    }
    text = grafsOut.join('\n\n');
    text = text.replace(/^\n+/g, '');
    text = text.replace(/\n+$/g, '');
    return globals.converter._dispatch('paragraphs.after', text, options, globals);
});
showdown.subParser('runExtension', function (ext, text, options, globals) {
    if (ext.filter) {
        text = ext.filter(text, globals.converter, options);
    } else {
        if (ext.regex) {
            var re = ext.regex;
            if (!re instanceof RegExp) {
                re = new RegExp(re, 'g');
            }
            text = text.replace(re, ext.replace);
        }
    }
    return text;
});
showdown.subParser('spanGamut', function (text, options, globals) {
    text = globals.converter._dispatch('spanGamut.before', text, options, globals);
    text = showdown.subParser('codeSpans')(text, options, globals);
    text = showdown.subParser('escapeSpecialCharsWithinTagAttributes')(text, options, globals);
    text = showdown.subParser('encodeBackslashEscapes')(text, options, globals);
    text = showdown.subParser('images')(text, options, globals);
    text = showdown.subParser('anchors')(text, options, globals);
    text = showdown.subParser('autoLinks')(text, options, globals);
    text = showdown.subParser('encodeAmpsAndAngles')(text, options, globals);
    text = showdown.subParser('italicsAndBold')(text, options, globals);
    text = showdown.subParser('strikethrough')(text, options, globals);
    text = text.replace(/  +\n/g, ' <br />\n');
    text = globals.converter._dispatch('spanGamut.after', text, options, globals);
    return text;
});
showdown.subParser('strikethrough', function (text, options, globals) {
    if (options.strikethrough) {
        text = globals.converter._dispatch('strikethrough.before', text, options, globals);
        text = text.replace(/(?:~T){2}([\s\S]+?)(?:~T){2}/g, '<del>$1</del>');
        text = globals.converter._dispatch('strikethrough.after', text, options, globals);
    }
    return text;
});
showdown.subParser('stripBlankLines', function (text) {
    return text.replace(/^[ \t]+$/gm, '');
});
showdown.subParser('stripLinkDefinitions', function (text, options, globals) {
    var regex = /^ {0,3}\[(.+)]:[ \t]*\n?[ \t]*<?(\S+?)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*\n?[ \t]*(?:(\n*)["|'(](.+?)["|')][ \t]*)?(?:\n+|(?=~0))/gm;
    text += '~0';
    text = text.replace(regex, function (wholeMatch, linkId, url, width, height, blankLines, title) {
        linkId = linkId.toLowerCase();
        globals.gUrls[linkId] = showdown.subParser('encodeAmpsAndAngles')(url);
        if (blankLines) {
            return blankLines + title;
        } else {
            if (title) {
                globals.gTitles[linkId] = title.replace(/"|'/g, '&quot;');
            }
            if (options.parseImgDimensions && width && height) {
                globals.gDimensions[linkId] = {
                    width: width,
                    height: height
                };
            }
        }
        return '';
    });
    text = text.replace(/~0/, '');
    return text;
});
showdown.subParser('tables', function (text, options, globals) {
    if (!options.tables) {
        return text;
    }
    var tableRgx = /^[ \t]{0,3}\|?.+\|.+\n[ \t]{0,3}\|?[ \t]*:?[ \t]*(?:-|=){2,}[ \t]*:?[ \t]*\|[ \t]*:?[ \t]*(?:-|=){2,}[\s\S]+?(?:\n\n|~0)/gm;
    function parseStyles(sLine) {
        if (/^:[ \t]*--*$/.test(sLine)) {
            return ' style="text-align:left;"';
        } else {
            if (/^--*[ \t]*:[ \t]*$/.test(sLine)) {
                return ' style="text-align:right;"';
            } else {
                if (/^:[ \t]*--*[ \t]*:$/.test(sLine)) {
                    return ' style="text-align:center;"';
                } else {
                    return '';
                }
            }
        }
    }
    function parseHeaders(header, style) {
        var id = '';
        header = header.trim();
        if (options.tableHeaderId) {
            id = ' id="' + header.replace(/ /g, '_').toLowerCase() + '"';
        }
        header = showdown.subParser('spanGamut')(header, options, globals);
        return '<th' + id + style + '>' + header + '</th>\n';
    }
    function parseCells(cell, style) {
        var subText = showdown.subParser('spanGamut')(cell, options, globals);
        return '<td' + style + '>' + subText + '</td>\n';
    }
    function buildTable(headers, cells) {
        var tb = '<table>\n<thead>\n<tr>\n';
        var tblLgn = headers.length;
        for (var i = 0; i < tblLgn; ++i) {
            tb += headers[i];
        }
        tb += '</tr>\n</thead>\n<tbody>\n';
        for (i = 0; i < cells.length; ++i) {
            tb += '<tr>\n';
            for (var ii = 0; ii < tblLgn; ++ii) {
                tb += cells[i][ii];
            }
            tb += '</tr>\n';
        }
        tb += '</tbody>\n</table>\n';
        return tb;
    }
    text = globals.converter._dispatch('tables.before', text, options, globals);
    text = text.replace(tableRgx, function (rawTable) {
        var i;
        var tableLines = rawTable.split('\n');
        for (i = 0; i < tableLines.length; ++i) {
            if (/^[ \t]{0,3}\|/.test(tableLines[i])) {
                tableLines[i] = tableLines[i].replace(/^[ \t]{0,3}\|/, '');
            }
            if (/\|[ \t]*$/.test(tableLines[i])) {
                tableLines[i] = tableLines[i].replace(/\|[ \t]*$/, '');
            }
        }
        var rawHeaders = tableLines[0].split('|').map(function (s) {
            return s.trim();
        });
        var rawStyles = tableLines[1].split('|').map(function (s) {
            return s.trim();
        });
        var rawCells = [];
        var headers = [];
        var styles = [];
        var cells = [];
        tableLines.shift();
        tableLines.shift();
        for (i = 0; i < tableLines.length; ++i) {
            if (tableLines[i].trim() === '') {
                continue;
            }
            rawCells.push(
                tableLines[i].split('|').map(function (s) {
                    return s.trim();
                })
            );
        }
        if (rawHeaders.length < rawStyles.length) {
            return rawTable;
        }
        for (i = 0; i < rawStyles.length; ++i) {
            styles.push(parseStyles(rawStyles[i]));
        }
        for (i = 0; i < rawHeaders.length; ++i) {
            if (showdown.helper.isUndefined(styles[i])) {
                styles[i] = '';
            }
            headers.push(parseHeaders(rawHeaders[i], styles[i]));
        }
        for (i = 0; i < rawCells.length; ++i) {
            var row = [];
            for (var ii = 0; ii < headers.length; ++ii) {
                if (showdown.helper.isUndefined(rawCells[i][ii])) {
                }
                row.push(parseCells(rawCells[i][ii], styles[ii]));
            }
            cells.push(row);
        }
        return buildTable(headers, cells);
    });
    text = globals.converter._dispatch('tables.after', text, options, globals);
    return text;
});
showdown.subParser('unescapeSpecialChars', function (text) {
    text = text.replace(/~E(\d+)E/g, function (wholeMatch, m1) {
        var charCodeToReplace = parseInt(m1);
        return String.fromCharCode(charCodeToReplace);
    });
    return text;
});
module.exports = showdown;