cmark

My personal build of CMark ✏️
Commit: e6c06dbb715f59b5b9dd4ad7fb7090f83e3ad90d
Parent: 9c218c305e175183abd577c07daec5daf230801c
Author: John MacFarlane <jgm@berkeley.edu>
Date: Thu, 11 Sep 2014 09:26:23 -0700
Reindented source with js2-mode.
Diffstat

1 file changed, 1468 insertions, 1468 deletions
Status	File Name	N° Changes	Insertions	Deletions
Modified	js/stmd.js	2936	1468	1468
diff --git a/js/stmd.js b/js/stmd.js
@@ -11,1505 +11,1505 @@
 
 (function(exports) {
 
-// Some regexps used in inline parser:
-
-var ESCAPABLE = '[!"#$%&\'()*+,./:;<=>?@[\\\\\\]^_`{|}~-]';
-var ESCAPED_CHAR = '\\\\' + ESCAPABLE;
-var IN_DOUBLE_QUOTES = '"(' + ESCAPED_CHAR + '|[^"\\x00])*"';
-var IN_SINGLE_QUOTES = '\'(' + ESCAPED_CHAR + '|[^\'\\x00])*\'';
-var IN_PARENS = '\\((' + ESCAPED_CHAR + '|[^)\\x00])*\\)';
-var REG_CHAR = '[^\\\\()\\x00-\\x20]';
-var IN_PARENS_NOSP = '\\((' + REG_CHAR + '|' + ESCAPED_CHAR + ')*\\)';
-var TAGNAME = '[A-Za-z][A-Za-z0-9]*';
-var BLOCKTAGNAME = '(?:article|header|aside|hgroup|iframe|blockquote|hr|body|li|map|button|object|canvas|ol|caption|output|col|p|colgroup|pre|dd|progress|div|section|dl|table|td|dt|tbody|embed|textarea|fieldset|tfoot|figcaption|th|figure|thead|footer|footer|tr|form|ul|h1|h2|h3|h4|h5|h6|video|script|style)';
-var ATTRIBUTENAME = '[a-zA-Z_:][a-zA-Z0-9:._-]*';
-var UNQUOTEDVALUE = "[^\"'=<>`\\x00-\\x20]+";
-var SINGLEQUOTEDVALUE = "'[^']*'";
-var DOUBLEQUOTEDVALUE = '"[^"]*"';
-var ATTRIBUTEVALUE = "(?:" + UNQUOTEDVALUE + "|" + SINGLEQUOTEDVALUE + "|" + DOUBLEQUOTEDVALUE + ")";
-var ATTRIBUTEVALUESPEC = "(?:" + "\\s*=" + "\\s*" + ATTRIBUTEVALUE + ")";
-var ATTRIBUTE = "(?:" + "\\s+" + ATTRIBUTENAME + ATTRIBUTEVALUESPEC + "?)";
-var OPENTAG = "<" + TAGNAME + ATTRIBUTE + "*" + "\\s*/?>";
-var CLOSETAG = "</" + TAGNAME + "\\s*[>]";
-var OPENBLOCKTAG = "<" + BLOCKTAGNAME + ATTRIBUTE + "*" + "\\s*/?>";
-var CLOSEBLOCKTAG = "</" + BLOCKTAGNAME + "\\s*[>]";
-var HTMLCOMMENT = "<!--([^-]+|[-][^-]+)*-->";
-var PROCESSINGINSTRUCTION = "[<][?].*?[?][>]";
-var DECLARATION = "<![A-Z]+" + "\\s+[^>]*>";
-var CDATA = "<!\\[CDATA\\[([^\\]]+|\\][^\\]]|\\]\\][^>])*\\]\\]>";
-var HTMLTAG = "(?:" + OPENTAG + "|" + CLOSETAG + "|" + HTMLCOMMENT + "|" +
-           PROCESSINGINSTRUCTION + "|" + DECLARATION + "|" + CDATA + ")";
-var HTMLBLOCKOPEN = "<(?:" + BLOCKTAGNAME + "[\\s/>]" + "|" +
-    "/" + BLOCKTAGNAME + "[\\s>]" + "|" + "[?!])";
-
-var reHtmlTag = new RegExp('^' + HTMLTAG, 'i');
-
-var reHtmlBlockOpen = new RegExp('^' + HTMLBLOCKOPEN, 'i');
-
-var reLinkTitle = new RegExp(
-    '^(?:"(' + ESCAPED_CHAR + '|[^"\\x00])*"' +
-    '|' +
-    '\'(' + ESCAPED_CHAR + '|[^\'\\x00])*\'' +
-    '|' +
-    '\\((' + ESCAPED_CHAR + '|[^)\\x00])*\\))');
-
-var reLinkDestinationBraces = new RegExp(
-    '^(?:[<](?:[^<>\\n\\\\\\x00]' + '|' + ESCAPED_CHAR + '|' + '\\\\)*[>])');
-
-var reLinkDestination = new RegExp(
-    '^(?:' + REG_CHAR + '+|' + ESCAPED_CHAR + '|' + IN_PARENS_NOSP + ')*');
-
-var reEscapable = new RegExp(ESCAPABLE);
-
-var reAllEscapedChar = new RegExp('\\\\(' + ESCAPABLE + ')', 'g');
-
-var reEscapedChar = new RegExp('^\\\\(' + ESCAPABLE + ')');
-
-var reAllTab = /\t/g;
-
-var reHrule = /^(?:(?:\* *){3,}|(?:_ *){3,}|(?:- *){3,}) *$/;
-
-// Matches a character with a special meaning in markdown,
-// or a string of non-special characters.  Note:  we match
-// clumps of _ or * or `, because they need to be handled in groups.
-var reMain = /^(?:[_*`\n]+|[\[\]\\!<&*_]|(?: *[^\n `\[\]\\!<&*_]+)+|[ \n]+)/m;
-
-// UTILITY FUNCTIONS
-
-// Replace backslash escapes with literal characters.
-var unescape = function(s) {
-  return s.replace(reAllEscapedChar, '$1');
-};
-
-// Returns true if string contains only space characters.
-var isBlank = function(s) {
-  return /^\s*$/.test(s);
-};
-
-// Normalize reference label: collapse internal whitespace
-// to single space, remove leading/trailing whitespace, case fold.
-var normalizeReference = function(s) {
-  return s.trim()
-          .replace(/\s+/,' ')
-          .toUpperCase();
-};
-
-// Attempt to match a regex in string s at offset offset.
-// Return index of match or null.
-var matchAt = function(re, s, offset) {
-  var res = s.slice(offset).match(re);
-  if (res) {
-    return offset + res.index;
-  } else {
-    return null;
-  }
-};
-
-// Convert tabs to spaces on each line using a 4-space tab stop.
-var detabLine = function(text) {
-  if (text.indexOf('\t') == -1) {
-    return text;
-  } else {
-    var lastStop = 0;
-    return text.replace(reAllTab, function(match, offset) {
-      var result = '    '.slice((offset - lastStop) % 4);
-      lastStop = offset + 1;
-      return result;
-    });
-  }
-};
-
-// INLINE PARSER
-
-// These are methods of an InlineParser object, defined below.
-// An InlineParser keeps track of a subject (a string to be
-// parsed) and a position in that subject.
-
-// If re matches at current position in the subject, advance
-// position in subject and return the match; otherwise return null.
-var match = function(re) {
-  var match = re.exec(this.subject.slice(this.pos));
-  if (match) {
-    this.pos += match.index + match[0].length;
-    return match[0];
-  } else {
-    return null;
-  }
-};
-
-// Returns the character at the current subject position, or null if
-// there are no more characters.
-var peek = function() {
-  return this.subject[this.pos] || null;
-};
-
-// Parse zero or more space characters, including at most one newline
-var spnl = function() {
-  this.match(/^ *(?:\n *)?/);
-  return 1;
-};
-
-// All of the parsers below try to match something at the current position
-// in the subject.  If they succeed in matching anything, they
-// return the inline matched, advancing the subject.
-
-// Attempt to parse backticks, returning either a backtick code span or a
-// literal sequence of backticks.
-var parseBackticks = function() {
-  var startpos = this.pos;
-  var ticks = this.match(/^`+/);
-  if (!ticks) {
-    return 0;
-  }
-  var afterOpenTicks = this.pos;
-  var foundCode = false;
-  var match;
-  while (!foundCode && (match = this.match(/`+/m))) {
-    if (match == ticks) {
-      return { t: 'Code', c: this.subject.slice(afterOpenTicks,
-                                   this.pos - ticks.length)
-             .replace(/[ \n]+/g,' ')
-             .trim() };
-    }
-  }
-  // If we got here, we didn't match a closing backtick sequence.
-  this.pos = afterOpenTicks;
-  return { t: 'Str', c: ticks };
-};
-
-// Parse a backslash-escaped special character, adding either the escaped
-// character, a hard line break (if the backslash is followed by a newline),
-// or a literal backslash to the 'inlines' list.
-var parseBackslash = function() {
-  var subj = this.subject,
-      pos  = this.pos;
-  if (subj[pos] === '\\') {
-    if (subj[pos + 1] === '\n') {
-      this.pos = this.pos + 2;
-      return { t: 'Hardbreak' };
-    } else if (reEscapable.test(subj[pos + 1])) {
-      this.pos = this.pos + 2;
-      return { t: 'Str', c: subj[pos + 1] };
-    } else {
-      this.pos++;
-      return {t: 'Str', c: '\\'};
-    }
-  } else {
-    return null;
-  }
-};
-
-// Attempt to parse an autolink (URL or email in pointy brackets).
-var parseAutolink = function() {
-  var m;
-  var dest;
-  if ((m = this.match(/^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/))) {  // email autolink
-    dest = m.slice(1,-1);
-    return {t: 'Link',
-            label: [{ t: 'Str', c: dest }],
-            destination: 'mailto:' + dest };
-  } else if ((m = this.match(/^<(?:coap|doi|javascript|aaa|aaas|about|acap|cap|cid|crid|data|dav|dict|dns|file|ftp|geo|go|gopher|h323|http|https|iax|icap|im|imap|info|ipp|iris|iris.beep|iris.xpc|iris.xpcs|iris.lwz|ldap|mailto|mid|msrp|msrps|mtqp|mupdate|news|nfs|ni|nih|nntp|opaquelocktoken|pop|pres|rtsp|service|session|shttp|sieve|sip|sips|sms|snmp|soap.beep|soap.beeps|tag|tel|telnet|tftp|thismessage|tn3270|tip|tv|urn|vemmi|ws|wss|xcon|xcon-userid|xmlrpc.beep|xmlrpc.beeps|xmpp|z39.50r|z39.50s|adiumxtra|afp|afs|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|chrome|chrome-extension|com-eventbrite-attendee|content|cvs|dlna-playsingle|dlna-playcontainer|dtn|dvb|ed2k|facetime|feed|finger|fish|gg|git|gizmoproject|gtalk|hcp|icon|ipn|irc|irc6|ircs|itms|jar|jms|keyparc|lastfm|ldaps|magnet|maps|market|message|mms|ms-help|msnim|mumble|mvn|notes|oid|palm|paparazzi|platform|proxy|psyc|query|res|resource|rmi|rsync|rtmp|secondlife|sftp|sgn|skype|smb|soldat|spotify|ssh|steam|svn|teamspeak|things|udp|unreal|ut2004|ventrilo|view-source|webcal|wtai|wyciwyg|xfire|xri|ymsgr):[^<>\x00-\x20]*>/i))) {
-    dest = m.slice(1,-1);
-    return { t: 'Link',
-             label: [{ t: 'Str', c: dest }],
-             destination: dest };
-  } else {
-    return null;
-  }
-};
-
-// Attempt to parse a raw HTML tag.
-var parseHtmlTag = function() {
-  var m = this.match(reHtmlTag);
-  if (m) {
-    return { t: 'Html', c: m };
-  } else {
-    return null;
-  }
-};
-
-// Scan a sequence of characters == c, and return information about
-// the number of delimiters and whether they are positioned such that
-// they can open and/or close emphasis or strong emphasis.  A utility
-// function for strong/emph parsing.
-var scanDelims = function(c) {
-  var numdelims = 0;
-  var first_close_delims = 0;
-  var char_before, char_after;
-  var startpos = this.pos;
-
-  char_before = this.pos === 0 ? '\n' :
-    this.subject[this.pos - 1];
-
-  while (this.peek() === c) {
-    numdelims++;
-    this.pos++;
-  }
-
-  char_after = this.peek() || '\n';
-
-  var can_open = numdelims > 0 && numdelims <= 3 && !(/\s/.test(char_after));
-  var can_close = numdelims > 0 && numdelims <= 3 && !(/\s/.test(char_before));
-  if (c === '_') {
-    can_open = can_open && !((/[a-z0-9]/i).test(char_before));
-    can_close = can_close && !((/[a-z0-9]/i).test(char_after));
-  }
-  this.pos = startpos;
-  return { numdelims: numdelims,
-           can_open: can_open,
-           can_close: can_close };
-};
-
-// Attempt to parse emphasis or strong emphasis.
-var parseEmphasis = function() {
-  var startpos = this.pos;
-  var c ;
-  var first_close = 0;
-  var c = this.peek();
-  if (!(c === '*' || c === '_')) {
-    return null;
-  }
-
-  var numdelims;
-  var delimpos;
-  var inlines = [];
-
-  // Get opening delimiters.
-  res = this.scanDelims(c);
-  numdelims = res.numdelims;
-
-  if (numdelims === 0) {
-    this.pos = startpos;
-    return null;
-  }
-
-  if (numdelims >= 4 || !res.can_open) {
-      this.pos += numdelims;
-      return {t: 'Str', c: this.subject.slice(startpos, startpos + numdelims)};
-  }
-
-  this.pos += numdelims;
-
-  var next_inline;
-  var last_emphasis_closer = null;
-
-  var delims_to_match = numdelims;
-
-  // We need not look for closers if we have already recorded that
-  // there are no closers past this point.
-  if (this.last_emphasis_closer === null ||
-      this.last_emphasis_closer >= this.pos) {
-    while (true) {
-        res = this.scanDelims(c);
-        numclosedelims = res.numdelims;
-        if (res.can_close) {
-            if (last_emphasis_closer === null ||
-                last_emphasis_closer < this.pos) {
-                last_emphasis_closer = this.pos;
+    // Some regexps used in inline parser:
+
+    var ESCAPABLE = '[!"#$%&\'()*+,./:;<=>?@[\\\\\\]^_`{|}~-]';
+    var ESCAPED_CHAR = '\\\\' + ESCAPABLE;
+    var IN_DOUBLE_QUOTES = '"(' + ESCAPED_CHAR + '|[^"\\x00])*"';
+    var IN_SINGLE_QUOTES = '\'(' + ESCAPED_CHAR + '|[^\'\\x00])*\'';
+    var IN_PARENS = '\\((' + ESCAPED_CHAR + '|[^)\\x00])*\\)';
+    var REG_CHAR = '[^\\\\()\\x00-\\x20]';
+    var IN_PARENS_NOSP = '\\((' + REG_CHAR + '|' + ESCAPED_CHAR + ')*\\)';
+    var TAGNAME = '[A-Za-z][A-Za-z0-9]*';
+    var BLOCKTAGNAME = '(?:article|header|aside|hgroup|iframe|blockquote|hr|body|li|map|button|object|canvas|ol|caption|output|col|p|colgroup|pre|dd|progress|div|section|dl|table|td|dt|tbody|embed|textarea|fieldset|tfoot|figcaption|th|figure|thead|footer|footer|tr|form|ul|h1|h2|h3|h4|h5|h6|video|script|style)';
+    var ATTRIBUTENAME = '[a-zA-Z_:][a-zA-Z0-9:._-]*';
+    var UNQUOTEDVALUE = "[^\"'=<>`\\x00-\\x20]+";
+    var SINGLEQUOTEDVALUE = "'[^']*'";
+    var DOUBLEQUOTEDVALUE = '"[^"]*"';
+    var ATTRIBUTEVALUE = "(?:" + UNQUOTEDVALUE + "|" + SINGLEQUOTEDVALUE + "|" + DOUBLEQUOTEDVALUE + ")";
+    var ATTRIBUTEVALUESPEC = "(?:" + "\\s*=" + "\\s*" + ATTRIBUTEVALUE + ")";
+    var ATTRIBUTE = "(?:" + "\\s+" + ATTRIBUTENAME + ATTRIBUTEVALUESPEC + "?)";
+    var OPENTAG = "<" + TAGNAME + ATTRIBUTE + "*" + "\\s*/?>";
+    var CLOSETAG = "</" + TAGNAME + "\\s*[>]";
+    var OPENBLOCKTAG = "<" + BLOCKTAGNAME + ATTRIBUTE + "*" + "\\s*/?>";
+    var CLOSEBLOCKTAG = "</" + BLOCKTAGNAME + "\\s*[>]";
+    var HTMLCOMMENT = "<!--([^-]+|[-][^-]+)*-->";
+    var PROCESSINGINSTRUCTION = "[<][?].*?[?][>]";
+    var DECLARATION = "<![A-Z]+" + "\\s+[^>]*>";
+    var CDATA = "<!\\[CDATA\\[([^\\]]+|\\][^\\]]|\\]\\][^>])*\\]\\]>";
+    var HTMLTAG = "(?:" + OPENTAG + "|" + CLOSETAG + "|" + HTMLCOMMENT + "|" +
+            PROCESSINGINSTRUCTION + "|" + DECLARATION + "|" + CDATA + ")";
+    var HTMLBLOCKOPEN = "<(?:" + BLOCKTAGNAME + "[\\s/>]" + "|" +
+            "/" + BLOCKTAGNAME + "[\\s>]" + "|" + "[?!])";
+
+    var reHtmlTag = new RegExp('^' + HTMLTAG, 'i');
+
+    var reHtmlBlockOpen = new RegExp('^' + HTMLBLOCKOPEN, 'i');
+
+    var reLinkTitle = new RegExp(
+        '^(?:"(' + ESCAPED_CHAR + '|[^"\\x00])*"' +
+            '|' +
+            '\'(' + ESCAPED_CHAR + '|[^\'\\x00])*\'' +
+            '|' +
+            '\\((' + ESCAPED_CHAR + '|[^)\\x00])*\\))');
+
+    var reLinkDestinationBraces = new RegExp(
+        '^(?:[<](?:[^<>\\n\\\\\\x00]' + '|' + ESCAPED_CHAR + '|' + '\\\\)*[>])');
+
+    var reLinkDestination = new RegExp(
+        '^(?:' + REG_CHAR + '+|' + ESCAPED_CHAR + '|' + IN_PARENS_NOSP + ')*');
+
+    var reEscapable = new RegExp(ESCAPABLE);
+
+    var reAllEscapedChar = new RegExp('\\\\(' + ESCAPABLE + ')', 'g');
+
+    var reEscapedChar = new RegExp('^\\\\(' + ESCAPABLE + ')');
+
+    var reAllTab = /\t/g;
+
+    var reHrule = /^(?:(?:\* *){3,}|(?:_ *){3,}|(?:- *){3,}) *$/;
+
+    // Matches a character with a special meaning in markdown,
+    // or a string of non-special characters.  Note:  we match
+    // clumps of _ or * or `, because they need to be handled in groups.
+    var reMain = /^(?:[_*`\n]+|[\[\]\\!<&*_]|(?: *[^\n `\[\]\\!<&*_]+)+|[ \n]+)/m;
+
+    // UTILITY FUNCTIONS
+
+    // Replace backslash escapes with literal characters.
+    var unescape = function(s) {
+        return s.replace(reAllEscapedChar, '$1');
+    };
+
+    // Returns true if string contains only space characters.
+    var isBlank = function(s) {
+        return /^\s*$/.test(s);
+    };
+
+    // Normalize reference label: collapse internal whitespace
+    // to single space, remove leading/trailing whitespace, case fold.
+    var normalizeReference = function(s) {
+        return s.trim()
+            .replace(/\s+/,' ')
+            .toUpperCase();
+    };
+
+    // Attempt to match a regex in string s at offset offset.
+    // Return index of match or null.
+    var matchAt = function(re, s, offset) {
+        var res = s.slice(offset).match(re);
+        if (res) {
+            return offset + res.index;
+        } else {
+            return null;
+        }
+    };
+
+    // Convert tabs to spaces on each line using a 4-space tab stop.
+    var detabLine = function(text) {
+        if (text.indexOf('\t') == -1) {
+            return text;
+        } else {
+            var lastStop = 0;
+            return text.replace(reAllTab, function(match, offset) {
+                var result = '    '.slice((offset - lastStop) % 4);
+                lastStop = offset + 1;
+                return result;
+            });
+        }
+    };
+
+    // INLINE PARSER
+
+    // These are methods of an InlineParser object, defined below.
+    // An InlineParser keeps track of a subject (a string to be
+    // parsed) and a position in that subject.
+
+    // If re matches at current position in the subject, advance
+    // position in subject and return the match; otherwise return null.
+    var match = function(re) {
+        var match = re.exec(this.subject.slice(this.pos));
+        if (match) {
+            this.pos += match.index + match[0].length;
+            return match[0];
+        } else {
+            return null;
+        }
+    };
+
+    // Returns the character at the current subject position, or null if
+    // there are no more characters.
+    var peek = function() {
+        return this.subject[this.pos] || null;
+    };
+
+    // Parse zero or more space characters, including at most one newline
+    var spnl = function() {
+        this.match(/^ *(?:\n *)?/);
+        return 1;
+    };
+
+    // All of the parsers below try to match something at the current position
+    // in the subject.  If they succeed in matching anything, they
+    // return the inline matched, advancing the subject.
+
+    // Attempt to parse backticks, returning either a backtick code span or a
+    // literal sequence of backticks.
+    var parseBackticks = function() {
+        var startpos = this.pos;
+        var ticks = this.match(/^`+/);
+        if (!ticks) {
+            return 0;
+        }
+        var afterOpenTicks = this.pos;
+        var foundCode = false;
+        var match;
+        while (!foundCode && (match = this.match(/`+/m))) {
+            if (match == ticks) {
+                return { t: 'Code', c: this.subject.slice(afterOpenTicks,
+                                                          this.pos - ticks.length)
+                         .replace(/[ \n]+/g,' ')
+                         .trim() };
             }
-            if (numclosedelims === 3 && delims_to_match === 3) {
-                this.pos += 3;
-                this.last_emphasis_closer = null;
-                return {t: 'Strong', c: [{t: 'Emph', c: inlines}]};
-            } else if (numclosedelims >= 2 && delims_to_match >= 2) {
-                delims_to_match -= 2;
-                this.pos += 2;
-                inlines = [{t: 'Strong', c: inlines}];
-            } else if (numclosedelims >= 1 && delims_to_match >= 1) {
-                delims_to_match -= 1;
-                this.pos += 1;
-                inlines = [{t: 'Emph', c: inlines}];
+        }
+        // If we got here, we didn't match a closing backtick sequence.
+        this.pos = afterOpenTicks;
+        return { t: 'Str', c: ticks };
+    };
+
+    // Parse a backslash-escaped special character, adding either the escaped
+    // character, a hard line break (if the backslash is followed by a newline),
+    // or a literal backslash to the 'inlines' list.
+    var parseBackslash = function() {
+        var subj = this.subject,
+            pos  = this.pos;
+        if (subj[pos] === '\\') {
+            if (subj[pos + 1] === '\n') {
+                this.pos = this.pos + 2;
+                return { t: 'Hardbreak' };
+            } else if (reEscapable.test(subj[pos + 1])) {
+                this.pos = this.pos + 2;
+                return { t: 'Str', c: subj[pos + 1] };
+            } else {
+                this.pos++;
+                return {t: 'Str', c: '\\'};
             }
-            if (delims_to_match === 0) {
-                this.last_emphasis_closer = null;
-                return inlines[0];
+        } else {
+            return null;
+        }
+    };
+
+    // Attempt to parse an autolink (URL or email in pointy brackets).
+    var parseAutolink = function() {
+        var m;
+        var dest;
+        if ((m = this.match(/^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/))) {  // email autolink
+            dest = m.slice(1,-1);
+            return {t: 'Link',
+                    label: [{ t: 'Str', c: dest }],
+                    destination: 'mailto:' + dest };
+        } else if ((m = this.match(/^<(?:coap|doi|javascript|aaa|aaas|about|acap|cap|cid|crid|data|dav|dict|dns|file|ftp|geo|go|gopher|h323|http|https|iax|icap|im|imap|info|ipp|iris|iris.beep|iris.xpc|iris.xpcs|iris.lwz|ldap|mailto|mid|msrp|msrps|mtqp|mupdate|news|nfs|ni|nih|nntp|opaquelocktoken|pop|pres|rtsp|service|session|shttp|sieve|sip|sips|sms|snmp|soap.beep|soap.beeps|tag|tel|telnet|tftp|thismessage|tn3270|tip|tv|urn|vemmi|ws|wss|xcon|xcon-userid|xmlrpc.beep|xmlrpc.beeps|xmpp|z39.50r|z39.50s|adiumxtra|afp|afs|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|chrome|chrome-extension|com-eventbrite-attendee|content|cvs|dlna-playsingle|dlna-playcontainer|dtn|dvb|ed2k|facetime|feed|finger|fish|gg|git|gizmoproject|gtalk|hcp|icon|ipn|irc|irc6|ircs|itms|jar|jms|keyparc|lastfm|ldaps|magnet|maps|market|message|mms|ms-help|msnim|mumble|mvn|notes|oid|palm|paparazzi|platform|proxy|psyc|query|res|resource|rmi|rsync|rtmp|secondlife|sftp|sgn|skype|smb|soldat|spotify|ssh|steam|svn|teamspeak|things|udp|unreal|ut2004|ventrilo|view-source|webcal|wtai|wyciwyg|xfire|xri|ymsgr):[^<>\x00-\x20]*>/i))) {
+            dest = m.slice(1,-1);
+            return { t: 'Link',
+                     label: [{ t: 'Str', c: dest }],
+                     destination: dest };
+        } else {
+            return null;
+        }
+    };
+
+    // Attempt to parse a raw HTML tag.
+    var parseHtmlTag = function() {
+        var m = this.match(reHtmlTag);
+        if (m) {
+            return { t: 'Html', c: m };
+        } else {
+            return null;
+        }
+    };
+
+    // Scan a sequence of characters == c, and return information about
+    // the number of delimiters and whether they are positioned such that
+    // they can open and/or close emphasis or strong emphasis.  A utility
+    // function for strong/emph parsing.
+    var scanDelims = function(c) {
+        var numdelims = 0;
+        var first_close_delims = 0;
+        var char_before, char_after;
+        var startpos = this.pos;
+
+        char_before = this.pos === 0 ? '\n' :
+            this.subject[this.pos - 1];
+
+        while (this.peek() === c) {
+            numdelims++;
+            this.pos++;
+        }
+
+        char_after = this.peek() || '\n';
+
+        var can_open = numdelims > 0 && numdelims <= 3 && !(/\s/.test(char_after));
+        var can_close = numdelims > 0 && numdelims <= 3 && !(/\s/.test(char_before));
+        if (c === '_') {
+            can_open = can_open && !((/[a-z0-9]/i).test(char_before));
+            can_close = can_close && !((/[a-z0-9]/i).test(char_after));
+        }
+        this.pos = startpos;
+        return { numdelims: numdelims,
+                 can_open: can_open,
+                 can_close: can_close };
+    };
+
+    // Attempt to parse emphasis or strong emphasis.
+    var parseEmphasis = function() {
+        var startpos = this.pos;
+        var c ;
+        var first_close = 0;
+        var c = this.peek();
+        if (!(c === '*' || c === '_')) {
+            return null;
+        }
+
+        var numdelims;
+        var delimpos;
+        var inlines = [];
+
+        // Get opening delimiters.
+        res = this.scanDelims(c);
+        numdelims = res.numdelims;
+
+        if (numdelims === 0) {
+            this.pos = startpos;
+            return null;
+        }
+
+        if (numdelims >= 4 || !res.can_open) {
+            this.pos += numdelims;
+            return {t: 'Str', c: this.subject.slice(startpos, startpos + numdelims)};
+        }
+
+        this.pos += numdelims;
+
+        var next_inline;
+        var last_emphasis_closer = null;
+
+        var delims_to_match = numdelims;
+
+        // We need not look for closers if we have already recorded that
+        // there are no closers past this point.
+        if (this.last_emphasis_closer === null ||
+            this.last_emphasis_closer >= this.pos) {
+            while (true) {
+                res = this.scanDelims(c);
+                numclosedelims = res.numdelims;
+                if (res.can_close) {
+                    if (last_emphasis_closer === null ||
+                        last_emphasis_closer < this.pos) {
+                        last_emphasis_closer = this.pos;
+                    }
+                    if (numclosedelims === 3 && delims_to_match === 3) {
+                        this.pos += 3;
+                        this.last_emphasis_closer = null;
+                        return {t: 'Strong', c: [{t: 'Emph', c: inlines}]};
+                    } else if (numclosedelims >= 2 && delims_to_match >= 2) {
+                        delims_to_match -= 2;
+                        this.pos += 2;
+                        inlines = [{t: 'Strong', c: inlines}];
+                    } else if (numclosedelims >= 1 && delims_to_match >= 1) {
+                        delims_to_match -= 1;
+                        this.pos += 1;
+                        inlines = [{t: 'Emph', c: inlines}];
+                    }
+                    if (delims_to_match === 0) {
+                        this.last_emphasis_closer = null;
+                        return inlines[0];
+                    }
+                } else if (next_inline = this.parseInline()) {
+                    inlines.push(next_inline);
+                } else {
+                    break;
+                }
             }
-        } else if (next_inline = this.parseInline()) {
-            inlines.push(next_inline);
+        }
+
+        // didn't find closing delimiter
+        this.pos = startpos + numdelims;
+        if (last_emphasis_closer === null) {
+            // we know there are no closers after startpos, so:
+            this.last_emphasis_closer = startpos;
         } else {
-            break;
+            this.last_emphasis_closer = last_emphasis_closer;
         }
-      }
-    }
+        return {t: 'Str', c: this.subject.slice(startpos, startpos + numdelims)};
+    };
+
+    // Attempt to parse link title (sans quotes), returning the string
+    // or null if no match.
+    var parseLinkTitle = function() {
+        var title = this.match(reLinkTitle);
+        if (title) {
+            // chop off quotes from title and unescape:
+            return unescape(title.substr(1, title.length - 2));
+        } else {
+            return null;
+        }
+    };
+
+    // Attempt to parse link destination, returning the string or
+    // null if no match.
+    var parseLinkDestination = function() {
+        var res = this.match(reLinkDestinationBraces);
+        if (res) {  // chop off surrounding <..>:
+            return unescape(res.substr(1, res.length - 2));
+        } else {
+            res = this.match(reLinkDestination);
+            if (res !== null) {
+                return unescape(res);
+            } else {
+                return null;
+            }
+        }
+    };
 
-    // didn't find closing delimiter
-    this.pos = startpos + numdelims;
-    if (last_emphasis_closer === null) {
-        // we know there are no closers after startpos, so:
-        this.last_emphasis_closer = startpos;
-    } else {
-        this.last_emphasis_closer = last_emphasis_closer;
-    }
-    return {t: 'Str', c: this.subject.slice(startpos, startpos + numdelims)};
-};
-
-// Attempt to parse link title (sans quotes), returning the string
-// or null if no match.
-var parseLinkTitle = function() {
-  var title = this.match(reLinkTitle);
-  if (title) {
-    // chop off quotes from title and unescape:
-    return unescape(title.substr(1, title.length - 2));
-  } else {
-    return null;
-  }
-};
-
-// Attempt to parse link destination, returning the string or
-// null if no match.
-var parseLinkDestination = function() {
-  var res = this.match(reLinkDestinationBraces);
-  if (res) {  // chop off surrounding <..>:
-    return unescape(res.substr(1, res.length - 2));
-  } else {
-    res = this.match(reLinkDestination);
-    if (res !== null) {
-      return unescape(res);
-    } else {
-      return null;
-    }
-  }
-};
-
-// Attempt to parse a link label, returning number of characters parsed.
-var parseLinkLabel = function() {
-  if (this.peek() != '[') {
-    return 0;
-  }
-  var startpos = this.pos;
-  var nest_level = 0;
-  if (this.label_nest_level > 0) {
-    // If we've already checked to the end of this subject
-    // for a label, even with a different starting [, we
-    // know we won't find one here and we can just return.
-    // This avoids lots of backtracking.
-    // Note:  nest level 1 would be: [foo [bar]
-    //        nest level 2 would be: [foo [bar [baz]
-    this.label_nest_level--;
-    return 0;
-  }
-  this.pos++;  // advance past [
-  var c;
-  while ((c = this.peek()) && (c != ']' || nest_level > 0)) {
-    switch (c) {
-      case '`':
-        this.parseBackticks();
-        break;
-      case '<':
-        this.parseAutolink() || this.parseHtmlTag() || this.parseString();
-        break;
-      case '[':  // nested []
-        nest_level++;
-        this.pos++;
-        break;
-      case ']':  // nested []
-        nest_level--;
-        this.pos++;
-        break;
-      case '\\':
-        this.parseBackslash();
-        break;
-      default:
-        this.parseString();
-    }
-  }
-  if (c === ']') {
-    this.label_nest_level = 0;
-    this.pos++; // advance past ]
-    return this.pos - startpos;
-  } else {
-    if (!c) {
-      this.label_nest_level = nest_level;
-    }
-    this.pos = startpos;
-    return 0;
-  }
-};
-
-// Parse raw link label, including surrounding [], and return
-// inline contents.  (Note:  this is not a method of InlineParser.)
-var parseRawLabel = function(s) {
-  // note:  parse without a refmap; we don't want links to resolve
-  // in nested brackets!
-  return new InlineParser().parse(s.substr(1, s.length - 2), {});
-};
-
-// Attempt to parse a link.  If successful, return the link.
-var parseLink = function() {
-  var startpos = this.pos;
-  var reflabel;
-  var n;
-  var dest;
-  var title;
-
-  n = this.parseLinkLabel();
-  if (n === 0) {
-    return null;
-  }
-  var afterlabel = this.pos;
-  var rawlabel = this.subject.substr(startpos, n);
-
-  // if we got this far, we've parsed a label.
-  // Try to parse an explicit link: [label](url "title")
-  if (this.peek() == '(') {
-    this.pos++;
-    if (this.spnl() &&
-        ((dest = this.parseLinkDestination()) !== null) &&
-        this.spnl() &&
-        // make sure there's a space before the title:
-        (/^\s/.test(this.subject[this.pos - 1]) &&
-         (title = this.parseLinkTitle() || '') || true) &&
-        this.spnl() &&
-        this.match(/^\)/)) {
-        return { t: 'Link',
-                 destination: dest,
-                 title: title,
-                 label: parseRawLabel(rawlabel) };
-     } else {
+    // Attempt to parse a link label, returning number of characters parsed.
+    var parseLinkLabel = function() {
+        if (this.peek() != '[') {
+            return 0;
+        }
+        var startpos = this.pos;
+        var nest_level = 0;
+        if (this.label_nest_level > 0) {
+            // If we've already checked to the end of this subject
+            // for a label, even with a different starting [, we
+            // know we won't find one here and we can just return.
+            // This avoids lots of backtracking.
+            // Note:  nest level 1 would be: [foo [bar]
+            //        nest level 2 would be: [foo [bar [baz]
+            this.label_nest_level--;
+            return 0;
+        }
+        this.pos++;  // advance past [
+        var c;
+        while ((c = this.peek()) && (c != ']' || nest_level > 0)) {
+            switch (c) {
+            case '`':
+                this.parseBackticks();
+                break;
+            case '<':
+                this.parseAutolink() || this.parseHtmlTag() || this.parseString();
+                break;
+            case '[':  // nested []
+                nest_level++;
+                this.pos++;
+                break;
+            case ']':  // nested []
+                nest_level--;
+                this.pos++;
+                break;
+            case '\\':
+                this.parseBackslash();
+                break;
+            default:
+                this.parseString();
+            }
+        }
+        if (c === ']') {
+            this.label_nest_level = 0;
+            this.pos++; // advance past ]
+            return this.pos - startpos;
+        } else {
+            if (!c) {
+                this.label_nest_level = nest_level;
+            }
+            this.pos = startpos;
+            return 0;
+        }
+    };
+
+    // Parse raw link label, including surrounding [], and return
+    // inline contents.  (Note:  this is not a method of InlineParser.)
+    var parseRawLabel = function(s) {
+        // note:  parse without a refmap; we don't want links to resolve
+        // in nested brackets!
+        return new InlineParser().parse(s.substr(1, s.length - 2), {});
+    };
+
+    // Attempt to parse a link.  If successful, return the link.
+    var parseLink = function() {
+        var startpos = this.pos;
+        var reflabel;
+        var n;
+        var dest;
+        var title;
+
+        n = this.parseLinkLabel();
+        if (n === 0) {
+            return null;
+        }
+        var afterlabel = this.pos;
+        var rawlabel = this.subject.substr(startpos, n);
+
+        // if we got this far, we've parsed a label.
+        // Try to parse an explicit link: [label](url "title")
+        if (this.peek() == '(') {
+            this.pos++;
+            if (this.spnl() &&
+                ((dest = this.parseLinkDestination()) !== null) &&
+                this.spnl() &&
+                // make sure there's a space before the title:
+                (/^\s/.test(this.subject[this.pos - 1]) &&
+                 (title = this.parseLinkTitle() || '') || true) &&
+                this.spnl() &&
+                this.match(/^\)/)) {
+                return { t: 'Link',
+                         destination: dest,
+                         title: title,
+                         label: parseRawLabel(rawlabel) };
+            } else {
+                this.pos = startpos;
+                return null;
+            }
+        }
+        // If we're here, it wasn't an explicit link. Try to parse a reference link.
+        // first, see if there's another label
+        var savepos = this.pos;
+        this.spnl();
+        var beforelabel = this.pos;
+        n = this.parseLinkLabel();
+        if (n == 2) {
+            // empty second label
+            reflabel = rawlabel;
+        } else if (n > 0) {
+            reflabel = this.subject.slice(beforelabel, beforelabel + n);
+        } else {
+            this.pos = savepos;
+            reflabel = rawlabel;
+        }
+        // lookup rawlabel in refmap
+        var link = this.refmap[normalizeReference(reflabel)];
+        if (link) {
+            return {t: 'Link',
+                    destination: link.destination,
+                    title: link.title,
+                    label: parseRawLabel(rawlabel) };
+        } else {
+            this.pos = startpos;
+            return null;
+        }
+        // Nothing worked, rewind:
         this.pos = startpos;
         return null;
-     }
-  }
-  // If we're here, it wasn't an explicit link. Try to parse a reference link.
-  // first, see if there's another label
-  var savepos = this.pos;
-  this.spnl();
-  var beforelabel = this.pos;
-  n = this.parseLinkLabel();
-  if (n == 2) {
-    // empty second label
-    reflabel = rawlabel;
-  } else if (n > 0) {
-    reflabel = this.subject.slice(beforelabel, beforelabel + n);
-  } else {
-    this.pos = savepos;
-    reflabel = rawlabel;
-  }
-  // lookup rawlabel in refmap
-  var link = this.refmap[normalizeReference(reflabel)];
-  if (link) {
-    return {t: 'Link',
-            destination: link.destination,
-            title: link.title,
-            label: parseRawLabel(rawlabel) };
-  } else {
-      this.pos = startpos;
-      return null;
-  }
-  // Nothing worked, rewind:
-  this.pos = startpos;
-  return null;
-};
-
-// Attempt to parse an entity, return Entity object if successful.
-var parseEntity = function() {
-  var m;
-  if ((m = this.match(/^&(?:#x[a-f0-9]{1,8}|#[0-9]{1,8}|[a-z][a-z0-9]{1,31});/i))) {
-      return { t: 'Entity', c: m };
-  } else {
-      return  null;
-  }
-};
-
-// Parse a run of ordinary characters, or a single character with
-// a special meaning in markdown, as a plain string, adding to inlines.
-var parseString = function() {
-  var m;
-  if (m = this.match(reMain)) {
-    return { t: 'Str', c: m };
-  } else {
-    return null;
-  }
-};
-
-// Parse a newline.  If it was preceded by two spaces, return a hard
-// line break; otherwise a soft line break.
-var parseNewline = function() {
-  var m = this.match(/^ *\n/);
-  if (m) {
-      if (m.length > 2) {
-          return { t: 'Hardbreak' };
-      } else if (m.length > 0) {
-          return { t: 'Softbreak' };
-      }
-  }
-  return null;
-};
-
-// Attempt to parse an image.  If the opening '!' is not followed
-// by a link, return a literal '!'.
-var parseImage = function() {
-  if (this.match(/^!/)) {
-    var link = this.parseLink();
-    if (link) {
-      link.t = 'Image';
-      return link;
-    } else {
-      return { t: 'Str', c: '!' };
-    }
-  } else {
-      return null;
-  }
-};
-
-// Attempt to parse a link reference, modifying refmap.
-var parseReference = function(s, refmap) {
-  this.subject = s;
-  this.pos = 0;
-  var rawlabel;
-  var dest;
-  var title;
-  var matchChars;
-  var startpos = this.pos;
-  var match;
-
-  // label:
-  matchChars = this.parseLinkLabel();
-  if (matchChars === 0) {
-    return 0;
-  } else {
-    rawlabel = this.subject.substr(0, matchChars);
-  }
-
-  // colon:
-  if (this.peek() === ':') {
-    this.pos++;
-  } else {
-    this.pos = startpos;
-    return 0;
-  }
-
-  //  link url
-  this.spnl();
-
-  dest = this.parseLinkDestination();
-  if (dest === null || dest.length === 0) {
-    this.pos = startpos;
-    return 0;
-  }
-
-  var beforetitle = this.pos;
-  this.spnl();
-  title = this.parseLinkTitle();
-  if (title === null) {
-    title = '';
-    // rewind before spaces
-    this.pos = beforetitle;
-  }
-
-  // make sure we're at line end:
-  if (this.match(/^ *(?:\n|$)/) === null) {
-    this.pos = startpos;
-    return 0;
-  }
-
-  var normlabel = normalizeReference(rawlabel);
-
-  if (!refmap[normlabel]) {
-    refmap[normlabel] = { destination: dest, title: title };
-  }
-  return this.pos - startpos;
-};
-
-// Parse the next inline element in subject, advancing subject position
-// and returning the inline parsed.
-var parseInline = function() {
-  var startpos = this.pos;
-  var memoized = this.memo[startpos];
-  if (memoized) {
-      this.pos = memoized.endpos;
-      return memoized.inline;
-  }
-  var c = this.peek();
-  if (!c) {
-      return null;
-  }
-  var res;
-  switch(c) {
-  case '\n':
-  case ' ':
-    res = this.parseNewline();
-    break;
-  case '\\':
-    res = this.parseBackslash();
-    break;
-  case '`':
-    res = this.parseBackticks();
-    break;
-  case '*':
-  case '_':
-    res = this.parseEmphasis();
-    break;
-  case '[':
-    res = this.parseLink();
-    break;
-  case '!':
-    res = this.parseImage();
-    break;
-  case '<':
-    res = this.parseAutolink() || this.parseHtmlTag();
-    break;
-  case '&':
-    res = this.parseEntity();
-    break;
-  default:
-    res = this.parseString();
-    break;
-  }
-  if (res === null) {
-    this.pos += 1;
-    res = {t: 'Str', c: c};
-  }
-  if (res) {
-    this.memo[startpos] = { inline: res,
-                            endpos: this.pos };
-  }
-  return res;
-};
-
-// Parse s as a list of inlines, using refmap to resolve references.
-var parseInlines = function(s, refmap) {
-  this.subject = s;
-  this.pos = 0;
-  this.refmap = refmap || {};
-  this.memo = {};
-  this.last_emphasis_closer = null;
-  var inlines = [];
-  var next_inline;
-  while (next_inline = this.parseInline()) {
-      inlines.push(next_inline);
-  }
-  return inlines;
-};
-
-// The InlineParser object.
-function InlineParser(){
-  return {
-    subject: '',
-    label_nest_level: 0, // used by parseLinkLabel method
-    last_emphasis_closer: null,  // used by parseEmphasis method
-    pos: 0,
-    refmap: {},
-    memo: {},
-    match: match,
-    peek: peek,
-    spnl: spnl,
-    parseBackticks: parseBackticks,
-    parseBackslash: parseBackslash,
-    parseAutolink: parseAutolink,
-    parseHtmlTag: parseHtmlTag,
-    scanDelims: scanDelims,
-    parseEmphasis: parseEmphasis,
-    parseLinkTitle: parseLinkTitle,
-    parseLinkDestination: parseLinkDestination,
-    parseLinkLabel: parseLinkLabel,
-    parseLink: parseLink,
-    parseEntity: parseEntity,
-    parseString: parseString,
-    parseNewline: parseNewline,
-    parseImage: parseImage,
-    parseReference: parseReference,
-    parseInline: parseInline,
-    parse: parseInlines
-  };
-}
-
-// DOC PARSER
-
-// These are methods of a DocParser object, defined below.
-
-var makeBlock = function(tag, start_line, start_column) {
-  return { t: tag,
-           open: true,
-           last_line_blank: false,
-           start_line: start_line,
-           start_column: start_column,
-           end_line: start_line,
-           children: [],
-           parent: null,
-           // string_content is formed by concatenating strings, in finalize:
-           string_content: "",
-           strings: [],
-           inline_content: []
+    };
+
+    // Attempt to parse an entity, return Entity object if successful.
+    var parseEntity = function() {
+        var m;
+        if ((m = this.match(/^&(?:#x[a-f0-9]{1,8}|#[0-9]{1,8}|[a-z][a-z0-9]{1,31});/i))) {
+            return { t: 'Entity', c: m };
+        } else {
+            return  null;
+        }
+    };
+
+    // Parse a run of ordinary characters, or a single character with
+    // a special meaning in markdown, as a plain string, adding to inlines.
+    var parseString = function() {
+        var m;
+        if (m = this.match(reMain)) {
+            return { t: 'Str', c: m };
+        } else {
+            return null;
+        }
+    };
+
+    // Parse a newline.  If it was preceded by two spaces, return a hard
+    // line break; otherwise a soft line break.
+    var parseNewline = function() {
+        var m = this.match(/^ *\n/);
+        if (m) {
+            if (m.length > 2) {
+                return { t: 'Hardbreak' };
+            } else if (m.length > 0) {
+                return { t: 'Softbreak' };
+            }
+        }
+        return null;
+    };
+
+    // Attempt to parse an image.  If the opening '!' is not followed
+    // by a link, return a literal '!'.
+    var parseImage = function() {
+        if (this.match(/^!/)) {
+            var link = this.parseLink();
+            if (link) {
+                link.t = 'Image';
+                return link;
+            } else {
+                return { t: 'Str', c: '!' };
+            }
+        } else {
+            return null;
+        }
+    };
+
+    // Attempt to parse a link reference, modifying refmap.
+    var parseReference = function(s, refmap) {
+        this.subject = s;
+        this.pos = 0;
+        var rawlabel;
+        var dest;
+        var title;
+        var matchChars;
+        var startpos = this.pos;
+        var match;
+
+        // label:
+        matchChars = this.parseLinkLabel();
+        if (matchChars === 0) {
+            return 0;
+        } else {
+            rawlabel = this.subject.substr(0, matchChars);
+        }
+
+        // colon:
+        if (this.peek() === ':') {
+            this.pos++;
+        } else {
+            this.pos = startpos;
+            return 0;
+        }
+
+        //  link url
+        this.spnl();
+
+        dest = this.parseLinkDestination();
+        if (dest === null || dest.length === 0) {
+            this.pos = startpos;
+            return 0;
+        }
+
+        var beforetitle = this.pos;
+        this.spnl();
+        title = this.parseLinkTitle();
+        if (title === null) {
+            title = '';
+            // rewind before spaces
+            this.pos = beforetitle;
+        }
+
+        // make sure we're at line end:
+        if (this.match(/^ *(?:\n|$)/) === null) {
+            this.pos = startpos;
+            return 0;
+        }
+
+        var normlabel = normalizeReference(rawlabel);
+
+        if (!refmap[normlabel]) {
+            refmap[normlabel] = { destination: dest, title: title };
+        }
+        return this.pos - startpos;
+    };
+
+    // Parse the next inline element in subject, advancing subject position
+    // and returning the inline parsed.
+    var parseInline = function() {
+        var startpos = this.pos;
+        var memoized = this.memo[startpos];
+        if (memoized) {
+            this.pos = memoized.endpos;
+            return memoized.inline;
+        }
+        var c = this.peek();
+        if (!c) {
+            return null;
+        }
+        var res;
+        switch(c) {
+        case '\n':
+        case ' ':
+            res = this.parseNewline();
+            break;
+        case '\\':
+            res = this.parseBackslash();
+            break;
+        case '`':
+            res = this.parseBackticks();
+            break;
+        case '*':
+        case '_':
+            res = this.parseEmphasis();
+            break;
+        case '[':
+            res = this.parseLink();
+            break;
+        case '!':
+            res = this.parseImage();
+            break;
+        case '<':
+            res = this.parseAutolink() || this.parseHtmlTag();
+            break;
+        case '&':
+            res = this.parseEntity();
+            break;
+        default:
+            res = this.parseString();
+            break;
+        }
+        if (res === null) {
+            this.pos += 1;
+            res = {t: 'Str', c: c};
+        }
+        if (res) {
+            this.memo[startpos] = { inline: res,
+                                    endpos: this.pos };
+        }
+        return res;
+    };
+
+    // Parse s as a list of inlines, using refmap to resolve references.
+    var parseInlines = function(s, refmap) {
+        this.subject = s;
+        this.pos = 0;
+        this.refmap = refmap || {};
+        this.memo = {};
+        this.last_emphasis_closer = null;
+        var inlines = [];
+        var next_inline;
+        while (next_inline = this.parseInline()) {
+            inlines.push(next_inline);
+        }
+        return inlines;
+    };
+
+    // The InlineParser object.
+    function InlineParser(){
+        return {
+            subject: '',
+            label_nest_level: 0, // used by parseLinkLabel method
+            last_emphasis_closer: null,  // used by parseEmphasis method
+            pos: 0,
+            refmap: {},
+            memo: {},
+            match: match,
+            peek: peek,
+            spnl: spnl,
+            parseBackticks: parseBackticks,
+            parseBackslash: parseBackslash,
+            parseAutolink: parseAutolink,
+            parseHtmlTag: parseHtmlTag,
+            scanDelims: scanDelims,
+            parseEmphasis: parseEmphasis,
+            parseLinkTitle: parseLinkTitle,
+            parseLinkDestination: parseLinkDestination,
+            parseLinkLabel: parseLinkLabel,
+            parseLink: parseLink,
+            parseEntity: parseEntity,
+            parseString: parseString,
+            parseNewline: parseNewline,
+            parseImage: parseImage,
+            parseReference: parseReference,
+            parseInline: parseInline,
+            parse: parseInlines
         };
-};
-
-// Returns true if parent block can contain child block.
-var canContain = function(parent_type, child_type) {
-  return ( parent_type == 'Document' ||
-           parent_type == 'BlockQuote' ||
-           parent_type == 'ListItem' ||
-           (parent_type == 'List' && child_type == 'ListItem') );
-};
-
-// Returns true if block type can accept lines of text.
-var acceptsLines = function(block_type) {
-  return ( block_type == 'Paragraph' ||
-           block_type == 'IndentedCode' ||
-           block_type == 'FencedCode' );
-};
-
-// Returns true if block ends with a blank line, descending if needed
-// into lists and sublists.
-var endsWithBlankLine = function(block) {
-  if (block.last_line_blank) {
-    return true;
-  }
-  if ((block.t == 'List' || block.t == 'ListItem') && block.children.length > 0) {
-    return endsWithBlankLine(block.children[block.children.length - 1]);
-  } else {
-    return false;
-  }
-};
-
-// Break out of all containing lists, resetting the tip of the
-// document to the parent of the highest list, and finalizing
-// all the lists.  (This is used to implement the "two blank lines
-// break of of all lists" feature.)
-var breakOutOfLists = function(block, line_number) {
-  var b = block;
-  var last_list = null;
-  do {
-    if (b.t === 'List') {
-      last_list = b;
     }
-    b = b.parent;
-  } while (b);
 
-  if (last_list) {
-    while (block != last_list) {
-      this.finalize(block, line_number);
-      block = block.parent;
-    }
-    this.finalize(last_list, line_number);
-    this.tip = last_list.parent;
-  }
-};
-
-// Add a line to the block at the tip.  We assume the tip
-// can accept lines -- that check should be done before calling this.
-var addLine = function(ln, offset) {
-  var s = ln.slice(offset);
-  if (!(this.tip.open)) {
-    throw({ msg: "Attempted to add line (" + ln + ") to closed container." });
-  }
-  this.tip.strings.push(s);
-};
-
-// Add block of type tag as a child of the tip.  If the tip can't
-// accept children, close and finalize it and try its parent,
-// and so on til we find a block that can accept children.
-var addChild = function(tag, line_number, offset) {
-  while (!canContain(this.tip.t, tag)) {
-    this.finalize(this.tip, line_number);
-  }
-
-  var column_number = offset + 1; // offset 0 = column 1
-  var newBlock = makeBlock(tag, line_number, column_number);
-  this.tip.children.push(newBlock);
-  newBlock.parent = this.tip;
-  this.tip = newBlock;
-  return newBlock;
-};
-
-// Parse a list marker and return data on the marker (type,
-// start, delimiter, bullet character, padding) or null.
-var parseListMarker = function(ln, offset) {
-  var rest = ln.slice(offset);
-  var match;
-  var spaces_after_marker;
-  var data = {};
-  if (rest.match(reHrule)) {
-    return null;
-  }
-  if ((match = rest.match(/^[*+-]( +|$)/))) {
-    spaces_after_marker = match[1].length;
-    data.type = 'Bullet';
-    data.bullet_char = match[0][0];
-
-  } else if ((match = rest.match(/^(\d+)([.)])( +|$)/))) {
-    spaces_after_marker = match[3].length;
-    data.type = 'Ordered';
-    data.start = parseInt(match[1]);
-    data.delimiter = match[2];
-  } else {
-    return null;
-  }
-  var blank_item = match[0].length === rest.length;
-  if (spaces_after_marker >= 5 ||
-      spaces_after_marker < 1 ||
-      blank_item) {
-        data.padding = match[0].length - spaces_after_marker + 1;
-  } else {
-        data.padding = match[0].length;
-  }
-  return data;
-};
-
-// Returns true if the two list items are of the same type,
-// with the same delimiter and bullet character.  This is used
-// in agglomerating list items into lists.
-var listsMatch = function(list_data, item_data) {
-  return (list_data.type === item_data.type &&
-          list_data.delimiter === item_data.delimiter &&
-          list_data.bullet_char === item_data.bullet_char);
-};
-
-// Analyze a line of text and update the document appropriately.
-// We parse markdown text by calling this on each line of input,
-// then finalizing the document.
-var incorporateLine = function(ln, line_number) {
-
-  var all_matched = true;
-  var last_child;
-  var first_nonspace;
-  var offset = 0;
-  var match;
-  var data;
-  var blank;
-  var indent;
-  var last_matched_container;
-  var i;
-  var CODE_INDENT = 4;
-
-  var container = this.doc;
-  var oldtip = this.tip;
-
-  // Convert tabs to spaces:
-  ln = detabLine(ln);
-
-  // For each containing block, try to parse the associated line start.
-  // Bail out on failure: container will point to the last matching block.
-  // Set all_matched to false if not all containers match.
-  while (container.children.length > 0) {
-    last_child = container.children[container.children.length - 1];
-    if (!last_child.open) {
-      break;
-    }
-    container = last_child;
-
-    match = matchAt(/[^ ]/, ln, offset);
-    if (match === null) {
-      first_nonspace = ln.length;
-      blank = true;
-    } else {
-      first_nonspace = match;
-      blank = false;
-    }
-    indent = first_nonspace - offset;
-
-    switch (container.t) {
-      case 'BlockQuote':
-        var matched = indent <= 3 && ln[first_nonspace] === '>';
-        if (matched) {
-          offset = first_nonspace + 1;
-          if (ln[offset] === ' ') {
-            offset++;
-          }
+    // DOC PARSER
+
+    // These are methods of a DocParser object, defined below.
+
+    var makeBlock = function(tag, start_line, start_column) {
+        return { t: tag,
+                 open: true,
+                 last_line_blank: false,
+                 start_line: start_line,
+                 start_column: start_column,
+                 end_line: start_line,
+                 children: [],
+                 parent: null,
+                 // string_content is formed by concatenating strings, in finalize:
+                 string_content: "",
+                 strings: [],
+                 inline_content: []
+               };
+    };
+
+    // Returns true if parent block can contain child block.
+    var canContain = function(parent_type, child_type) {
+        return ( parent_type == 'Document' ||
+                 parent_type == 'BlockQuote' ||
+                 parent_type == 'ListItem' ||
+                 (parent_type == 'List' && child_type == 'ListItem') );
+    };
+
+    // Returns true if block type can accept lines of text.
+    var acceptsLines = function(block_type) {
+        return ( block_type == 'Paragraph' ||
+                 block_type == 'IndentedCode' ||
+                 block_type == 'FencedCode' );
+    };
+
+    // Returns true if block ends with a blank line, descending if needed
+    // into lists and sublists.
+    var endsWithBlankLine = function(block) {
+        if (block.last_line_blank) {
+            return true;
+        }
+        if ((block.t == 'List' || block.t == 'ListItem') && block.children.length > 0) {
+            return endsWithBlankLine(block.children[block.children.length - 1]);
         } else {
-          all_matched = false;
+            return false;
         }
-        break;
+    };
+
+    // Break out of all containing lists, resetting the tip of the
+    // document to the parent of the highest list, and finalizing
+    // all the lists.  (This is used to implement the "two blank lines
+    // break of of all lists" feature.)
+    var breakOutOfLists = function(block, line_number) {
+        var b = block;
+        var last_list = null;
+        do {
+            if (b.t === 'List') {
+                last_list = b;
+            }
+            b = b.parent;
+        } while (b);
 
-      case 'ListItem':
-        if (indent >= container.list_data.marker_offset +
-                      container.list_data.padding) {
-          offset += container.list_data.marker_offset +
-                    container.list_data.padding;
-        } else if (blank) {
-          offset = first_nonspace;
-        } else {
-          all_matched = false;
+        if (last_list) {
+            while (block != last_list) {
+                this.finalize(block, line_number);
+                block = block.parent;
+            }
+            this.finalize(last_list, line_number);
+            this.tip = last_list.parent;
+        }
+    };
+
+    // Add a line to the block at the tip.  We assume the tip
+    // can accept lines -- that check should be done before calling this.
+    var addLine = function(ln, offset) {
+        var s = ln.slice(offset);
+        if (!(this.tip.open)) {
+            throw({ msg: "Attempted to add line (" + ln + ") to closed container." });
+        }
+        this.tip.strings.push(s);
+    };
+
+    // Add block of type tag as a child of the tip.  If the tip can't
+    // accept children, close and finalize it and try its parent,
+    // and so on til we find a block that can accept children.
+    var addChild = function(tag, line_number, offset) {
+        while (!canContain(this.tip.t, tag)) {
+            this.finalize(this.tip, line_number);
         }
-        break;
 
-      case 'IndentedCode':
-        if (indent >= CODE_INDENT) {
-          offset += CODE_INDENT;
-        } else if (blank) {
-          offset = first_nonspace;
+        var column_number = offset + 1; // offset 0 = column 1
+        var newBlock = makeBlock(tag, line_number, column_number);
+        this.tip.children.push(newBlock);
+        newBlock.parent = this.tip;
+        this.tip = newBlock;
+        return newBlock;
+    };
+
+    // Parse a list marker and return data on the marker (type,
+    // start, delimiter, bullet character, padding) or null.
+    var parseListMarker = function(ln, offset) {
+        var rest = ln.slice(offset);
+        var match;
+        var spaces_after_marker;
+        var data = {};
+        if (rest.match(reHrule)) {
+            return null;
+        }
+        if ((match = rest.match(/^[*+-]( +|$)/))) {
+            spaces_after_marker = match[1].length;
+            data.type = 'Bullet';
+            data.bullet_char = match[0][0];
+
+        } else if ((match = rest.match(/^(\d+)([.)])( +|$)/))) {
+            spaces_after_marker = match[3].length;
+            data.type = 'Ordered';
+            data.start = parseInt(match[1]);
+            data.delimiter = match[2];
         } else {
-          all_matched = false;
+            return null;
+        }
+        var blank_item = match[0].length === rest.length;
+        if (spaces_after_marker >= 5 ||
+            spaces_after_marker < 1 ||
+            blank_item) {
+            data.padding = match[0].length - spaces_after_marker + 1;
+        } else {
+            data.padding = match[0].length;
+        }
+        return data;
+    };
+
+    // Returns true if the two list items are of the same type,
+    // with the same delimiter and bullet character.  This is used
+    // in agglomerating list items into lists.
+    var listsMatch = function(list_data, item_data) {
+        return (list_data.type === item_data.type &&
+                list_data.delimiter === item_data.delimiter &&
+                list_data.bullet_char === item_data.bullet_char);
+    };
+
+    // Analyze a line of text and update the document appropriately.
+    // We parse markdown text by calling this on each line of input,
+    // then finalizing the document.
+    var incorporateLine = function(ln, line_number) {
+
+        var all_matched = true;
+        var last_child;
+        var first_nonspace;
+        var offset = 0;
+        var match;
+        var data;
+        var blank;
+        var indent;
+        var last_matched_container;
+        var i;
+        var CODE_INDENT = 4;
+
+        var container = this.doc;
+        var oldtip = this.tip;
+
+        // Convert tabs to spaces:
+        ln = detabLine(ln);
+
+        // For each containing block, try to parse the associated line start.
+        // Bail out on failure: container will point to the last matching block.
+        // Set all_matched to false if not all containers match.
+        while (container.children.length > 0) {
+            last_child = container.children[container.children.length - 1];
+            if (!last_child.open) {
+                break;
+            }
+            container = last_child;
+
+            match = matchAt(/[^ ]/, ln, offset);
+            if (match === null) {
+                first_nonspace = ln.length;
+                blank = true;
+            } else {
+                first_nonspace = match;
+                blank = false;
+            }
+            indent = first_nonspace - offset;
+
+            switch (container.t) {
+            case 'BlockQuote':
+                var matched = indent <= 3 && ln[first_nonspace] === '>';
+                if (matched) {
+                    offset = first_nonspace + 1;
+                    if (ln[offset] === ' ') {
+                        offset++;
+                    }
+                } else {
+                    all_matched = false;
+                }
+                break;
+
+            case 'ListItem':
+                if (indent >= container.list_data.marker_offset +
+                    container.list_data.padding) {
+                    offset += container.list_data.marker_offset +
+                        container.list_data.padding;
+                } else if (blank) {
+                    offset = first_nonspace;
+                } else {
+                    all_matched = false;
+                }
+                break;
+
+            case 'IndentedCode':
+                if (indent >= CODE_INDENT) {
+                    offset += CODE_INDENT;
+                } else if (blank) {
+                    offset = first_nonspace;
+                } else {
+                    all_matched = false;
+                }
+                break;
+
+            case 'ATXHeader':
+            case 'SetextHeader':
+            case 'HorizontalRule':
+                // a header can never container > 1 line, so fail to match:
+                all_matched = false;
+                break;
+
+            case 'FencedCode':
+                // skip optional spaces of fence offset
+                i = container.fence_offset;
+                while (i > 0 && ln[offset] === ' ') {
+                    offset++;
+                    i--;
+                }
+                break;
+
+            case 'HtmlBlock':
+                if (blank) {
+                    all_matched = false;
+                }
+                break;
+
+            case 'Paragraph':
+                if (blank) {
+                    container.last_line_blank = true;
+                    all_matched = false;
+                }
+                break;
+
+            default:
+            }
+
+            if (!all_matched) {
+                container = container.parent; // back up to last matching block
+                break;
+            }
         }
-        break;
 
-      case 'ATXHeader':
-      case 'SetextHeader':
-      case 'HorizontalRule':
-        // a header can never container > 1 line, so fail to match:
-        all_matched = false;
-        break;
+        last_matched_container = container;
+
+        // This function is used to finalize and close any unmatched
+        // blocks.  We aren't ready to do this now, because we might
+        // have a lazy paragraph continuation, in which case we don't
+        // want to close unmatched blocks.  So we store this closure for
+        // use later, when we have more information.
+        var closeUnmatchedBlocks = function(mythis) {
+            // finalize any blocks not matched
+            while (!already_done && oldtip != last_matched_container) {
+                mythis.finalize(oldtip, line_number);
+                oldtip = oldtip.parent;
+            }
+            var already_done = true;
+        };
 
-      case 'FencedCode':
-        // skip optional spaces of fence offset
-        i = container.fence_offset;
-        while (i > 0 && ln[offset] === ' ') {
-          offset++;
-          i--;
+        // Check to see if we've hit 2nd blank line; if so break out of list:
+        if (blank && container.last_line_blank) {
+            this.breakOutOfLists(container, line_number);
         }
-        break;
 
-      case 'HtmlBlock':
-        if (blank) {
-          all_matched = false;
+        // Unless last matched container is a code block, try new container starts,
+        // adding children to the last matched container:
+        while (container.t != 'FencedCode' &&
+               container.t != 'IndentedCode' &&
+               container.t != 'HtmlBlock' &&
+               // this is a little performance optimization:
+               matchAt(/^[ #`~*+_=<>0-9-]/,ln,offset) !== null) {
+
+            match = matchAt(/[^ ]/, ln, offset);
+            if (match === null) {
+                first_nonspace = ln.length;
+                blank = true;
+            } else {
+                first_nonspace = match;
+                blank = false;
+            }
+            indent = first_nonspace - offset;
+
+            if (indent >= CODE_INDENT) {
+                // indented code
+                if (this.tip.t != 'Paragraph' && !blank) {
+                    offset += CODE_INDENT;
+                    closeUnmatchedBlocks(this);
+                    container = this.addChild('IndentedCode', line_number, offset);
+                } else { // indent > 4 in a lazy paragraph continuation
+                    break;
+                }
+
+            } else if (ln[first_nonspace] === '>') {
+                // blockquote
+                offset = first_nonspace + 1;
+                // optional following space
+                if (ln[offset] === ' ') {
+                    offset++;
+                }
+                closeUnmatchedBlocks(this);
+                container = this.addChild('BlockQuote', line_number, offset);
+
+            } else if ((match = ln.slice(first_nonspace).match(/^#{1,6}(?: +|$)/))) {
+                // ATX header
+                offset = first_nonspace + match[0].length;
+                closeUnmatchedBlocks(this);
+                container = this.addChild('ATXHeader', line_number, first_nonspace);
+                container.level = match[0].trim().length; // number of #s
+                // remove trailing ###s:
+                container.strings =
+                    [ln.slice(offset).replace(/(?:(\\#) *#*| *#+) *$/,'$1')];
+                break;
+
+            } else if ((match = ln.slice(first_nonspace).match(/^`{3,}(?!.*`)|^~{3,}(?!.*~)/))) {
+                // fenced code block
+                var fence_length = match[0].length;
+                closeUnmatchedBlocks(this);
+                container = this.addChild('FencedCode', line_number, first_nonspace);
+                container.fence_length = fence_length;
+                container.fence_char = match[0][0];
+                container.fence_offset = first_nonspace - offset;
+                offset = first_nonspace + fence_length;
+                break;
+
+            } else if (matchAt(reHtmlBlockOpen, ln, first_nonspace) !== null) {
+                // html block
+                closeUnmatchedBlocks(this);
+                container = this.addChild('HtmlBlock', line_number, first_nonspace);
+                // note, we don't adjust offset because the tag is part of the text
+                break;
+
+            } else if (container.t == 'Paragraph' &&
+                       container.strings.length === 1 &&
+                       ((match = ln.slice(first_nonspace).match(/^(?:=+|-+) *$/)))) {
+                // setext header line
+                closeUnmatchedBlocks(this);
+                container.t = 'SetextHeader'; // convert Paragraph to SetextHeader
+                container.level = match[0][0] === '=' ? 1 : 2;
+                offset = ln.length;
+
+            } else if (matchAt(reHrule, ln, first_nonspace) !== null) {
+                // hrule
+                closeUnmatchedBlocks(this);
+                container = this.addChild('HorizontalRule', line_number, first_nonspace);
+                offset = ln.length - 1;
+                break;
+
+            } else if ((data = parseListMarker(ln, first_nonspace))) {
+                // list item
+                closeUnmatchedBlocks(this);
+                data.marker_offset = indent;
+                offset = first_nonspace + data.padding;
+
+                // add the list if needed
+                if (container.t !== 'List' ||
+                    !(listsMatch(container.list_data, data))) {
+                    container = this.addChild('List', line_number, first_nonspace);
+                    container.list_data = data;
+                }
+
+                // add the list item
+                container = this.addChild('ListItem', line_number, first_nonspace);
+                container.list_data = data;
+
+            } else {
+                break;
+
+            }
+
+            if (acceptsLines(container.t)) {
+                // if it's a line container, it can't contain other containers
+                break;
+            }
         }
-        break;
 
-      case 'Paragraph':
-        if (blank) {
-          container.last_line_blank = true;
-          all_matched = false;
+        // What remains at the offset is a text line.  Add the text to the
+        // appropriate container.
+
+        match = matchAt(/[^ ]/, ln, offset);
+        if (match === null) {
+            first_nonspace = ln.length;
+            blank = true;
+        } else {
+            first_nonspace = match;
+            blank = false;
         }
-        break;
+        indent = first_nonspace - offset;
+
+        // First check for a lazy paragraph continuation:
+        if (this.tip !== last_matched_container &&
+            !blank &&
+            this.tip.t == 'Paragraph' &&
+            this.tip.strings.length > 0) {
+            // lazy paragraph continuation
+
+            this.last_line_blank = false;
+            this.addLine(ln, offset);
+
+        } else { // not a lazy continuation
+
+            // finalize any blocks not matched
+            closeUnmatchedBlocks(this);
+
+            // Block quote lines are never blank as they start with >
+            // and we don't count blanks in fenced code for purposes of tight/loose
+            // lists or breaking out of lists.  We also don't set last_line_blank
+            // on an empty list item.
+            container.last_line_blank = blank &&
+                !(container.t == 'BlockQuote' ||
+                  container.t == 'FencedCode' ||
+                  (container.t == 'ListItem' &&
+                   container.children.length === 0 &&
+                   container.start_line == line_number));
+
+            var cont = container;
+            while (cont.parent) {
+                cont.parent.last_line_blank = false;
+                cont = cont.parent;
+            }
 
-      default:
-    }
+            switch (container.t) {
+            case 'IndentedCode':
+            case 'HtmlBlock':
+                this.addLine(ln, offset);
+                break;
+
+            case 'FencedCode':
+                // check for closing code fence:
+                match = (indent <= 3 &&
+                         ln[first_nonspace] == container.fence_char &&
+                         ln.slice(first_nonspace).match(/^(?:`{3,}|~{3,})(?= *$)/));
+                if (match && match[0].length >= container.fence_length) {
+                    // don't add closing fence to container; instead, close it:
+                    this.finalize(container, line_number);
+                } else {
+                    this.addLine(ln, offset);
+                }
+                break;
+
+            case 'ATXHeader':
+            case 'SetextHeader':
+            case 'HorizontalRule':
+                // nothing to do; we already added the contents.
+                break;
+
+            default:
+                if (acceptsLines(container.t)) {
+                    this.addLine(ln, first_nonspace);
+                } else if (blank) {
+                    // do nothing
+                } else if (container.t != 'HorizontalRule' &&
+                           container.t != 'SetextHeader') {
+                    // create paragraph container for line
+                    container = this.addChild('Paragraph', line_number, first_nonspace);
+                    this.addLine(ln, first_nonspace);
+                } else {
+                    console.log("Line " + line_number.toString() +
+                                " with container type " + container.t +
+                                " did not match any condition.");
+
+                }
+            }
+        }
+    };
+
+    // Finalize a block.  Close it and do any necessary postprocessing,
+    // e.g. creating string_content from strings, setting the 'tight'
+    // or 'loose' status of a list, and parsing the beginnings
+    // of paragraphs for reference definitions.  Reset the tip to the
+    // parent of the closed block.
+    var finalize = function(block, line_number) {
+        var pos;
+        // don't do anything if the block is already closed
+        if (!block.open) {
+            return 0;
+        }
+        block.open = false;
+        if (line_number > block.start_line) {
+            block.end_line = line_number - 1;
+        } else {
+            block.end_line = line_number;
+        }
 
-    if (!all_matched) {
-      container = container.parent; // back up to last matching block
-      break;
-    }
-  }
-
-  last_matched_container = container;
-
-  // This function is used to finalize and close any unmatched
-  // blocks.  We aren't ready to do this now, because we might
-  // have a lazy paragraph continuation, in which case we don't
-  // want to close unmatched blocks.  So we store this closure for
-  // use later, when we have more information.
-  var closeUnmatchedBlocks = function(mythis) {
-    // finalize any blocks not matched
-    while (!already_done && oldtip != last_matched_container) {
-      mythis.finalize(oldtip, line_number);
-      oldtip = oldtip.parent;
-    }
-    var already_done = true;
-  };
-
-  // Check to see if we've hit 2nd blank line; if so break out of list:
-  if (blank && container.last_line_blank) {
-    this.breakOutOfLists(container, line_number);
-  }
-
-  // Unless last matched container is a code block, try new container starts,
-  // adding children to the last matched container:
-  while (container.t != 'FencedCode' &&
-         container.t != 'IndentedCode' &&
-         container.t != 'HtmlBlock' &&
-         // this is a little performance optimization:
-         matchAt(/^[ #`~*+_=<>0-9-]/,ln,offset) !== null) {
-
-    match = matchAt(/[^ ]/, ln, offset);
-    if (match === null) {
-      first_nonspace = ln.length;
-      blank = true;
-    } else {
-      first_nonspace = match;
-      blank = false;
-    }
-    indent = first_nonspace - offset;
-
-    if (indent >= CODE_INDENT) {
-      // indented code
-      if (this.tip.t != 'Paragraph' && !blank) {
-        offset += CODE_INDENT;
-        closeUnmatchedBlocks(this);
-        container = this.addChild('IndentedCode', line_number, offset);
-      } else { // indent > 4 in a lazy paragraph continuation
-        break;
-      }
-
-    } else if (ln[first_nonspace] === '>') {
-      // blockquote
-      offset = first_nonspace + 1;
-      // optional following space
-      if (ln[offset] === ' ') {
-        offset++;
-      }
-      closeUnmatchedBlocks(this);
-      container = this.addChild('BlockQuote', line_number, offset);
-
-    } else if ((match = ln.slice(first_nonspace).match(/^#{1,6}(?: +|$)/))) {
-      // ATX header
-      offset = first_nonspace + match[0].length;
-      closeUnmatchedBlocks(this);
-      container = this.addChild('ATXHeader', line_number, first_nonspace);
-      container.level = match[0].trim().length; // number of #s
-      // remove trailing ###s:
-      container.strings =
-            [ln.slice(offset).replace(/(?:(\\#) *#*| *#+) *$/,'$1')];
-      break;
-
-    } else if ((match = ln.slice(first_nonspace).match(/^`{3,}(?!.*`)|^~{3,}(?!.*~)/))) {
-      // fenced code block
-      var fence_length = match[0].length;
-      closeUnmatchedBlocks(this);
-      container = this.addChild('FencedCode', line_number, first_nonspace);
-      container.fence_length = fence_length;
-      container.fence_char = match[0][0];
-      container.fence_offset = first_nonspace - offset;
-      offset = first_nonspace + fence_length;
-      break;
-
-    } else if (matchAt(reHtmlBlockOpen, ln, first_nonspace) !== null) {
-      // html block
-      closeUnmatchedBlocks(this);
-      container = this.addChild('HtmlBlock', line_number, first_nonspace);
-      // note, we don't adjust offset because the tag is part of the text
-      break;
-
-    } else if (container.t == 'Paragraph' &&
-               container.strings.length === 1 &&
-               ((match = ln.slice(first_nonspace).match(/^(?:=+|-+) *$/)))) {
-      // setext header line
-      closeUnmatchedBlocks(this);
-      container.t = 'SetextHeader'; // convert Paragraph to SetextHeader
-      container.level = match[0][0] === '=' ? 1 : 2;
-      offset = ln.length;
-
-    } else if (matchAt(reHrule, ln, first_nonspace) !== null) {
-      // hrule
-      closeUnmatchedBlocks(this);
-      container = this.addChild('HorizontalRule', line_number, first_nonspace);
-      offset = ln.length - 1;
-      break;
-
-    } else if ((data = parseListMarker(ln, first_nonspace))) {
-      // list item
-      closeUnmatchedBlocks(this);
-      data.marker_offset = indent;
-      offset = first_nonspace + data.padding;
-
-      // add the list if needed
-      if (container.t !== 'List' ||
-          !(listsMatch(container.list_data, data))) {
-           container = this.addChild('List', line_number, first_nonspace);
-           container.list_data = data;
-      }
-
-      // add the list item
-      container = this.addChild('ListItem', line_number, first_nonspace);
-      container.list_data = data;
-
-    } else {
-      break;
+        switch (block.t) {
+        case 'Paragraph':
+            block.string_content = block.strings.join('\n').replace(/^  */m,'');
+
+            // try parsing the beginning as link reference definitions:
+            while (block.string_content[0] === '[' &&
+                   (pos = this.inlineParser.parseReference(block.string_content,
+                                                           this.refmap))) {
+                block.string_content = block.string_content.slice(pos);
+                if (isBlank(block.string_content)) {
+                    block.t = 'ReferenceDef';
+                    break;
+                }
+            }
+            break;
 
-    }
+        case 'ATXHeader':
+        case 'SetextHeader':
+        case 'HtmlBlock':
+            block.string_content = block.strings.join('\n');
+            break;
 
-    if (acceptsLines(container.t)) {
-      // if it's a line container, it can't contain other containers
-      break;
-    }
-  }
-
-  // What remains at the offset is a text line.  Add the text to the
-  // appropriate container.
-
-  match = matchAt(/[^ ]/, ln, offset);
-  if (match === null) {
-    first_nonspace = ln.length;
-    blank = true;
-  } else {
-    first_nonspace = match;
-    blank = false;
-  }
-  indent = first_nonspace - offset;
-
-  // First check for a lazy paragraph continuation:
-  if (this.tip !== last_matched_container &&
-      !blank &&
-      this.tip.t == 'Paragraph' &&
-      this.tip.strings.length > 0) {
-     // lazy paragraph continuation
-
-    this.last_line_blank = false;
-    this.addLine(ln, offset);
-
-  } else { // not a lazy continuation
-
-    // finalize any blocks not matched
-    closeUnmatchedBlocks(this);
-
-    // Block quote lines are never blank as they start with >
-    // and we don't count blanks in fenced code for purposes of tight/loose
-    // lists or breaking out of lists.  We also don't set last_line_blank
-    // on an empty list item.
-    container.last_line_blank = blank &&
-      !(container.t == 'BlockQuote' ||
-        container.t == 'FencedCode' ||
-        (container.t == 'ListItem' &&
-         container.children.length === 0 &&
-         container.start_line == line_number));
-
-    var cont = container;
-    while (cont.parent) {
-      cont.parent.last_line_blank = false;
-      cont = cont.parent;
-    }
+        case 'IndentedCode':
+            block.string_content = block.strings.join('\n').replace(/(\n *)*$/,'\n');
+            break;
 
-    switch (container.t) {
-    case 'IndentedCode':
-    case 'HtmlBlock':
-      this.addLine(ln, offset);
-      break;
-
-    case 'FencedCode':
-      // check for closing code fence:
-      match = (indent <= 3 &&
-               ln[first_nonspace] == container.fence_char &&
-               ln.slice(first_nonspace).match(/^(?:`{3,}|~{3,})(?= *$)/));
-      if (match && match[0].length >= container.fence_length) {
-        // don't add closing fence to container; instead, close it:
-        this.finalize(container, line_number);
-      } else {
-        this.addLine(ln, offset);
-      }
-      break;
-
-    case 'ATXHeader':
-    case 'SetextHeader':
-    case 'HorizontalRule':
-      // nothing to do; we already added the contents.
-      break;
-
-    default:
-      if (acceptsLines(container.t)) {
-        this.addLine(ln, first_nonspace);
-      } else if (blank) {
-        // do nothing
-      } else if (container.t != 'HorizontalRule' &&
-                 container.t != 'SetextHeader') {
-        // create paragraph container for line
-        container = this.addChild('Paragraph', line_number, first_nonspace);
-        this.addLine(ln, first_nonspace);
-      } else {
-        console.log("Line " + line_number.toString() +
-                     " with container type " + container.t +
-                     " did not match any condition.");
-
-      }
-    }
-  }
-};
-
-// Finalize a block.  Close it and do any necessary postprocessing,
-// e.g. creating string_content from strings, setting the 'tight'
-// or 'loose' status of a list, and parsing the beginnings
-// of paragraphs for reference definitions.  Reset the tip to the
-// parent of the closed block.
-var finalize = function(block, line_number) {
-  var pos;
-  // don't do anything if the block is already closed
-  if (!block.open) {
-    return 0;
-  }
-  block.open = false;
-  if (line_number > block.start_line) {
-    block.end_line = line_number - 1;
-  } else {
-    block.end_line = line_number;
-  }
-
-  switch (block.t) {
-  case 'Paragraph':
-    block.string_content = block.strings.join('\n').replace(/^  */m,'');
-
-    // try parsing the beginning as link reference definitions:
-    while (block.string_content[0] === '[' &&
-           (pos = this.inlineParser.parseReference(block.string_content,
-                                                   this.refmap))) {
-      block.string_content = block.string_content.slice(pos);
-      if (isBlank(block.string_content)) {
-        block.t = 'ReferenceDef';
-        break;
-      }
-    }
-    break;
-
-  case 'ATXHeader':
-  case 'SetextHeader':
-  case 'HtmlBlock':
-    block.string_content = block.strings.join('\n');
-    break;
-
-  case 'IndentedCode':
-    block.string_content = block.strings.join('\n').replace(/(\n *)*$/,'\n');
-    break;
-
-  case 'FencedCode':
-    // first line becomes info string
-    block.info = unescape(block.strings[0].trim());
-    if (block.strings.length == 1) {
-      block.string_content = '';
-    } else {
-      block.string_content = block.strings.slice(1).join('\n') + '\n';
-    }
-    break;
-
-  case 'List':
-    block.tight = true; // tight by default
-
-    var numitems = block.children.length;
-    var i = 0;
-    while (i < numitems) {
-      var item = block.children[i];
-      // check for non-final list item ending with blank line:
-      var last_item = i == numitems - 1;
-      if (endsWithBlankLine(item) && !last_item) {
-        block.tight = false;
-        break;
-      }
-      // recurse into children of list item, to see if there are
-      // spaces between any of them:
-      var numsubitems = item.children.length;
-      var j = 0;
-      while (j < numsubitems) {
-        var subitem = item.children[j];
-        var last_subitem = j == numsubitems - 1;
-        if (endsWithBlankLine(subitem) && !(last_item && last_subitem)) {
-          block.tight = false;
-          break;
-        }
-        j++;
-      }
-      i++;
-    }
-    break;
-
-  default:
-    break;
-  }
-
-  this.tip = block.parent || this.top;
-};
-
-// Walk through a block & children recursively, parsing string content
-// into inline content where appropriate.
-var processInlines = function(block) {
-  switch(block.t) {
-    case 'Paragraph':
-    case 'SetextHeader':
-    case 'ATXHeader':
-      block.inline_content =
-        this.inlineParser.parse(block.string_content.trim(), this.refmap);
-      block.string_content = "";
-      break;
-    default:
-      break;
-  }
-
-  if (block.children) {
-    for (var i = 0; i < block.children.length; i++) {
-      this.processInlines(block.children[i]);
-    }
-  }
-
-};
-
-// The main parsing function.  Returns a parsed document AST.
-var parse = function(input) {
-  this.doc = makeBlock('Document', 1, 1);
-  this.tip = this.doc;
-  this.refmap = {};
-  var lines = input.replace(/\n$/,'').split(/\r\n|\n|\r/);
-  var len = lines.length;
-  for (var i = 0; i < len; i++) {
-    this.incorporateLine(lines[i], i+1);
-  }
-  while (this.tip) {
-    this.finalize(this.tip, len - 1);
-  }
-  this.processInlines(this.doc);
-  return this.doc;
-};
-
-
-// The DocParser object.
-function DocParser(){
-  return {
-    doc: makeBlock('Document', 1, 1),
-    tip: this.doc,
-    refmap: {},
-    inlineParser: new InlineParser(),
-    breakOutOfLists: breakOutOfLists,
-    addLine: addLine,
-    addChild: addChild,
-    incorporateLine: incorporateLine,
-    finalize: finalize,
-    processInlines: processInlines,
-    parse: parse
-  };
-}
-
-// HTML RENDERER
-
-// Helper function to produce content in a pair of HTML tags.
-var inTags = function(tag, attribs, contents, selfclosing) {
-  var result = '<' + tag;
-  if (attribs) {
-    var i = 0;
-    var attrib;
-    while ((attrib = attribs[i]) !== undefined) {
-      result = result.concat(' ', attrib[0], '="', attrib[1], '"');
-      i++;
+        case 'FencedCode':
+            // first line becomes info string
+            block.info = unescape(block.strings[0].trim());
+            if (block.strings.length == 1) {
+                block.string_content = '';
+            } else {
+                block.string_content = block.strings.slice(1).join('\n') + '\n';
+            }
+            break;
+
+        case 'List':
+            block.tight = true; // tight by default
+
+            var numitems = block.children.length;
+            var i = 0;
+            while (i < numitems) {
+                var item = block.children[i];
+                // check for non-final list item ending with blank line:
+                var last_item = i == numitems - 1;
+                if (endsWithBlankLine(item) && !last_item) {
+                    block.tight = false;
+                    break;
+                }
+                // recurse into children of list item, to see if there are
+                // spaces between any of them:
+                var numsubitems = item.children.length;
+                var j = 0;
+                while (j < numsubitems) {
+                    var subitem = item.children[j];
+                    var last_subitem = j == numsubitems - 1;
+                    if (endsWithBlankLine(subitem) && !(last_item && last_subitem)) {
+                        block.tight = false;
+                        break;
+                    }
+                    j++;
+                }
+                i++;
+            }
+            break;
+
+        default:
+            break;
+        }
+
+        this.tip = block.parent || this.top;
+    };
+
+    // Walk through a block & children recursively, parsing string content
+    // into inline content where appropriate.
+    var processInlines = function(block) {
+        switch(block.t) {
+        case 'Paragraph':
+        case 'SetextHeader':
+        case 'ATXHeader':
+            block.inline_content =
+                this.inlineParser.parse(block.string_content.trim(), this.refmap);
+            block.string_content = "";
+            break;
+        default:
+            break;
+        }
+
+        if (block.children) {
+            for (var i = 0; i < block.children.length; i++) {
+                this.processInlines(block.children[i]);
+            }
+        }
+
+    };
+
+    // The main parsing function.  Returns a parsed document AST.
+    var parse = function(input) {
+        this.doc = makeBlock('Document', 1, 1);
+        this.tip = this.doc;
+        this.refmap = {};
+        var lines = input.replace(/\n$/,'').split(/\r\n|\n|\r/);
+        var len = lines.length;
+        for (var i = 0; i < len; i++) {
+            this.incorporateLine(lines[i], i+1);
+        }
+        while (this.tip) {
+            this.finalize(this.tip, len - 1);
+        }
+        this.processInlines(this.doc);
+        return this.doc;
+    };
+
+
+    // The DocParser object.
+    function DocParser(){
+        return {
+            doc: makeBlock('Document', 1, 1),
+            tip: this.doc,
+            refmap: {},
+            inlineParser: new InlineParser(),
+            breakOutOfLists: breakOutOfLists,
+            addLine: addLine,
+            addChild: addChild,
+            incorporateLine: incorporateLine,
+            finalize: finalize,
+            processInlines: processInlines,
+            parse: parse
+        };
     }
-  }
-  if (contents) {
-    result = result.concat('>', contents, '</', tag, '>');
-  } else if (selfclosing) {
-    result = result + ' />';
-  } else {
-    result = result.concat('></', tag, '>');
-  }
-  return result;
-};
-
-// Render an inline element as HTML.
-var renderInline = function(inline) {
-  var attrs;
-  switch (inline.t) {
-    case 'Str':
-      return this.escape(inline.c);
-    case 'Softbreak':
-      return this.softbreak;
-    case 'Hardbreak':
-      return inTags('br',[],"",true) + '\n';
-    case 'Emph':
-      return inTags('em', [], this.renderInlines(inline.c));
-    case 'Strong':
-      return inTags('strong', [], this.renderInlines(inline.c));
-    case 'Html':
-      return inline.c;
-    case 'Entity':
-      return inline.c;
-    case 'Link':
-      attrs = [['href', this.escape(inline.destination, true)]];
-      if (inline.title) {
-        attrs.push(['title', this.escape(inline.title, true)]);
-      }
-      return inTags('a', attrs, this.renderInlines(inline.label));
-    case 'Image':
-      attrs = [['src', this.escape(inline.destination, true)],
-                   ['alt', this.escape(this.renderInlines(inline.label))]];
-      if (inline.title) {
-        attrs.push(['title', this.escape(inline.title, true)]);
-      }
-      return inTags('img', attrs, "", true);
-    case 'Code':
-      return inTags('code', [], this.escape(inline.c));
-    default:
-      console.log("Uknown inline type " + inline.t);
-      return "";
-  }
-};
-
-// Render a list of inlines.
-var renderInlines = function(inlines) {
-  var result = '';
-  for (var i=0; i < inlines.length; i++) {
-    result = result + this.renderInline(inlines[i]);
-  }
-  return result;
-};
-
-// Render a single block element.
-var renderBlock = function(block, in_tight_list) {
-  var tag;
-  var attr;
-  var info_words;
-  switch (block.t) {
-    case 'Document':
-      var whole_doc = this.renderBlocks(block.children);
-      return (whole_doc === '' ? '' : whole_doc + '\n');
-    case 'Paragraph':
-      if (in_tight_list) {
-        return this.renderInlines(block.inline_content);
-      } else {
-        return inTags('p', [], this.renderInlines(block.inline_content));
-      }
-      break;
-    case 'BlockQuote':
-      var filling = this.renderBlocks(block.children);
-      return inTags('blockquote', [], filling === '' ? this.innersep :
-          this.innersep + this.renderBlocks(block.children) + this.innersep);
-    case 'ListItem':
-      return inTags('li', [], this.renderBlocks(block.children, in_tight_list).trim());
-    case 'List':
-      tag = block.list_data.type == 'Bullet' ? 'ul' : 'ol';
-      attr = (!block.list_data.start || block.list_data.start == 1) ?
-              [] : [['start', block.list_data.start.toString()]];
-      return inTags(tag, attr, this.innersep +
-                    this.renderBlocks(block.children, block.tight) +
-                    this.innersep);
-    case 'ATXHeader':
-    case 'SetextHeader':
-      tag = 'h' + block.level;
-      return inTags(tag, [], this.renderInlines(block.inline_content));
-    case 'IndentedCode':
-      return inTags('pre', [],
-              inTags('code', [], this.escape(block.string_content)));
-    case 'FencedCode':
-      info_words = block.info.split(/ +/);
-      attr = info_words.length === 0 || info_words[0].length === 0 ?
-                   [] : [['class','language-' +
-                                   this.escape(info_words[0],true)]];
-      return inTags('pre', [],
-              inTags('code', attr, this.escape(block.string_content)));
-    case 'HtmlBlock':
-      return block.string_content;
-    case 'ReferenceDef':
-      return "";
-    case 'HorizontalRule':
-      return inTags('hr',[],"",true);
-    default:
-      console.log("Uknown block type " + block.t);
-      return "";
-  }
-};
-
-// Render a list of block elements, separated by this.blocksep.
-var renderBlocks = function(blocks, in_tight_list) {
-  var result = [];
-  for (var i=0; i < blocks.length; i++) {
-    if (blocks[i].t !== 'ReferenceDef') {
-      result.push(this.renderBlock(blocks[i], in_tight_list));
+
+    // HTML RENDERER
+
+    // Helper function to produce content in a pair of HTML tags.
+    var inTags = function(tag, attribs, contents, selfclosing) {
+        var result = '<' + tag;
+        if (attribs) {
+            var i = 0;
+            var attrib;
+            while ((attrib = attribs[i]) !== undefined) {
+                result = result.concat(' ', attrib[0], '="', attrib[1], '"');
+                i++;
+            }
+        }
+        if (contents) {
+            result = result.concat('>', contents, '</', tag, '>');
+        } else if (selfclosing) {
+            result = result + ' />';
+        } else {
+            result = result.concat('></', tag, '>');
+        }
+        return result;
+    };
+
+    // Render an inline element as HTML.
+    var renderInline = function(inline) {
+        var attrs;
+        switch (inline.t) {
+        case 'Str':
+            return this.escape(inline.c);
+        case 'Softbreak':
+            return this.softbreak;
+        case 'Hardbreak':
+            return inTags('br',[],"",true) + '\n';
+        case 'Emph':
+            return inTags('em', [], this.renderInlines(inline.c));
+        case 'Strong':
+            return inTags('strong', [], this.renderInlines(inline.c));
+        case 'Html':
+            return inline.c;
+        case 'Entity':
+            return inline.c;
+        case 'Link':
+            attrs = [['href', this.escape(inline.destination, true)]];
+            if (inline.title) {
+                attrs.push(['title', this.escape(inline.title, true)]);
+            }
+            return inTags('a', attrs, this.renderInlines(inline.label));
+        case 'Image':
+            attrs = [['src', this.escape(inline.destination, true)],
+                     ['alt', this.escape(this.renderInlines(inline.label))]];
+            if (inline.title) {
+                attrs.push(['title', this.escape(inline.title, true)]);
+            }
+            return inTags('img', attrs, "", true);
+        case 'Code':
+            return inTags('code', [], this.escape(inline.c));
+        default:
+            console.log("Uknown inline type " + inline.t);
+            return "";
+        }
+    };
+
+    // Render a list of inlines.
+    var renderInlines = function(inlines) {
+        var result = '';
+        for (var i=0; i < inlines.length; i++) {
+            result = result + this.renderInline(inlines[i]);
+        }
+        return result;
+    };
+
+    // Render a single block element.
+    var renderBlock = function(block, in_tight_list) {
+        var tag;
+        var attr;
+        var info_words;
+        switch (block.t) {
+        case 'Document':
+            var whole_doc = this.renderBlocks(block.children);
+            return (whole_doc === '' ? '' : whole_doc + '\n');
+        case 'Paragraph':
+            if (in_tight_list) {
+                return this.renderInlines(block.inline_content);
+            } else {
+                return inTags('p', [], this.renderInlines(block.inline_content));
+            }
+            break;
+        case 'BlockQuote':
+            var filling = this.renderBlocks(block.children);
+            return inTags('blockquote', [], filling === '' ? this.innersep :
+                          this.innersep + this.renderBlocks(block.children) + this.innersep);
+        case 'ListItem':
+            return inTags('li', [], this.renderBlocks(block.children, in_tight_list).trim());
+        case 'List':
+            tag = block.list_data.type == 'Bullet' ? 'ul' : 'ol';
+            attr = (!block.list_data.start || block.list_data.start == 1) ?
+                [] : [['start', block.list_data.start.toString()]];
+            return inTags(tag, attr, this.innersep +
+                          this.renderBlocks(block.children, block.tight) +
+                          this.innersep);
+        case 'ATXHeader':
+        case 'SetextHeader':
+            tag = 'h' + block.level;
+            return inTags(tag, [], this.renderInlines(block.inline_content));
+        case 'IndentedCode':
+            return inTags('pre', [],
+                          inTags('code', [], this.escape(block.string_content)));
+        case 'FencedCode':
+            info_words = block.info.split(/ +/);
+            attr = info_words.length === 0 || info_words[0].length === 0 ?
+                [] : [['class','language-' +
+                       this.escape(info_words[0],true)]];
+            return inTags('pre', [],
+                          inTags('code', attr, this.escape(block.string_content)));
+        case 'HtmlBlock':
+            return block.string_content;
+        case 'ReferenceDef':
+            return "";
+        case 'HorizontalRule':
+            return inTags('hr',[],"",true);
+        default:
+            console.log("Uknown block type " + block.t);
+            return "";
+        }
+    };
+
+    // Render a list of block elements, separated by this.blocksep.
+    var renderBlocks = function(blocks, in_tight_list) {
+        var result = [];
+        for (var i=0; i < blocks.length; i++) {
+            if (blocks[i].t !== 'ReferenceDef') {
+                result.push(this.renderBlock(blocks[i], in_tight_list));
+            }
+        }
+        return result.join(this.blocksep);
+    };
+
+    // The HtmlRenderer object.
+    function HtmlRenderer(){
+        return {
+            // default options:
+            blocksep: '\n',  // space between blocks
+            innersep: '\n',  // space between block container tag and contents
+            softbreak: '\n', // by default, soft breaks are rendered as newlines in HTML
+            // set to "<br />" to make them hard breaks
+            // set to " " if you want to ignore line wrapping in source
+            escape: function(s, preserve_entities) {
+                if (preserve_entities) {
+                    return s.replace(/[&](?![#](x[a-f0-9]{1,8}|[0-9]{1,8});|[a-z][a-z0-9]{1,31};)/gi,'&amp;')
+                        .replace(/[<]/g,'&lt;')
+                        .replace(/[>]/g,'&gt;')
+                        .replace(/["]/g,'&quot;');
+                } else {
+                    return s.replace(/[&]/g,'&amp;')
+                        .replace(/[<]/g,'&lt;')
+                        .replace(/[>]/g,'&gt;')
+                        .replace(/["]/g,'&quot;');
+                }
+            },
+            renderInline: renderInline,
+            renderInlines: renderInlines,
+            renderBlock: renderBlock,
+            renderBlocks: renderBlocks,
+            render: renderBlock
+        };
     }
-  }
-  return result.join(this.blocksep);
-};
-
-// The HtmlRenderer object.
-function HtmlRenderer(){
-  return {
-    // default options:
-    blocksep: '\n',  // space between blocks
-    innersep: '\n',  // space between block container tag and contents
-    softbreak: '\n', // by default, soft breaks are rendered as newlines in HTML
-                     // set to "<br />" to make them hard breaks
-                     // set to " " if you want to ignore line wrapping in source
-    escape: function(s, preserve_entities) {
-      if (preserve_entities) {
-      return s.replace(/[&](?![#](x[a-f0-9]{1,8}|[0-9]{1,8});|[a-z][a-z0-9]{1,31};)/gi,'&amp;')
-              .replace(/[<]/g,'&lt;')
-              .replace(/[>]/g,'&gt;')
-              .replace(/["]/g,'&quot;');
-      } else {
-      return s.replace(/[&]/g,'&amp;')
-              .replace(/[<]/g,'&lt;')
-              .replace(/[>]/g,'&gt;')
-              .replace(/["]/g,'&quot;');
-      }
-    },
-    renderInline: renderInline,
-    renderInlines: renderInlines,
-    renderBlock: renderBlock,
-    renderBlocks: renderBlocks,
-    render: renderBlock
-  };
-}
-
-exports.DocParser = DocParser;
-exports.HtmlRenderer = HtmlRenderer;
+
+    exports.DocParser = DocParser;
+    exports.HtmlRenderer = HtmlRenderer;
 
 })(typeof exports === 'undefined' ? this.stmd = {} : exports);