Marked/marked-ie6.js at main · Modern-IE/Marked · GitHub

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(function(global) {
    var defaults = {
        gfm: true,
        breaks: false,
        sanitize: false
    };
    function trim(str) {
        return str.replace(/^\s+|\s+$/g, "");
    }
    function escapeHTML(str) {
        return str.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
    }
    function marked(src, opt) {
        if (!src) return "";
        var options = {}, k;
        for (k in defaults) options[k] = defaults[k];
        if (opt) for (k in opt) options[k] = opt[k];
        if (options.sanitize) src = escapeHTML(src);
        var text = "\n" + src.replace(/\r\n|\r/g, "\n") + "\n";
        var codeBlocks = [];
        text = text.replace(/\n```[\s\S]*?\n([\s\S]*?)\n```\n/g, function(match, code) {
            codeBlocks.push(escapeHTML(code));
            return "\n@@CB" + (codeBlocks.length - 1) + "@@\n";
        });
        text = text.replace(/\n(#+)(.*)/g, function(m, hashes, content) {
            var level = hashes.length;
            return "\n<h" + level + ">" + trim(content) + "</h" + level + ">";
        });
        text = text.replace(/\n(?:---|\*\*\*|___)\s*\n/g, "\n<hr />\n");
        text = text.replace(/!\[([^\]]*)\]\(([^)]+)\)/g, '<img src="$2" alt="$1" />');
        text = text.replace(/\[([^\]]+)\]\(([^)]+)\)/g, '<a href="$2">$1</a>');
        text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g, "<strong>$2</strong>");
        text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g, "<em>$2</em>");
        text = text.replace(/`([^`]+)`/g, "<code>$1</code>");
        text = text.replace(/~~([^~]+)~~/g, "<del>$1</del>");
        text = text.replace(/\n(>.*?(?:\n[^\n]*)*\n)/g, function(m, bq) {
            return "\n<blockquote>" + bq.replace(/\n>\s?/g, "\n") + "</blockquote>\n";
        });
        text = text.replace(/\n((?:[\*\-\+]\s+.*(?:\n|$))+)/g, function(m, list) {
            var items = list.replace(/\n[\*\-\+]\s+(.*)/g, "\n<li>$1</li>");
            return "\n<ul>" + items + "</ul>\n";
        });
        text = text.replace(/\n((?:\d+\.\s+.*(?:\n|$))+)/g, function(m, list) {
            var items = list.replace(/\n\d+\.\s+(.*)/g, "\n<li>$1</li>");
            return "\n<ol>" + items + "</ol>\n";
        });
        var paragraphs = text.split(/\n{2,}/);
        for (var i = 0; i < paragraphs.length; i++) {
            var p = trim(paragraphs[i]);
            if (p !== "") {
                if (!/^<(?:ul|ol|li|h|p|bl|pre|hr|img|div|table|tbody|thead|tr|th|td)/i.test(p)) {
                    if (options.breaks) p = p.replace(/\n/g, "<br>\n");
                    paragraphs[i] = "<p>" + p + "</p>";
                } else {
                    paragraphs[i] = p;
                }
            } else {
                paragraphs[i] = "";
            }
        }
        text = paragraphs.join("\n");
        text = text.replace(/@@CB(\d+)@@/g, function(m, i) {
            return "<pre><code>" + codeBlocks[i] + "</code></pre>";
        });
        return trim(text.replace(/\n</g, "<"));
    }
    marked.parse = marked;
    marked.setOptions = function(opt) {
        for (var k in opt) defaults[k] = opt[k];
        return marked;
    };
    marked.defaults = defaults;
    global.marked = marked;
})(typeof window !== "undefined" ? window : this);