commonmark
Version:
a strongly specified, highly compatible variant of Markdown
880 lines (766 loc) • 27.9 kB
JavaScript
;
var Node = require('./node');
var common = require('./common');
var normalizeReference = require('./normalize-reference');
var normalizeURI = common.normalizeURI;
var unescapeString = common.unescapeString;
var fromCodePoint = require('./from-code-point.js');
var entityToChar = require('./html5-entities.js').entityToChar;
// Constants for character codes:
var C_NEWLINE = 10;
var C_ASTERISK = 42;
var C_UNDERSCORE = 95;
var C_BACKTICK = 96;
var C_OPEN_BRACKET = 91;
var C_CLOSE_BRACKET = 93;
var C_LESSTHAN = 60;
var C_BANG = 33;
var C_BACKSLASH = 92;
var C_AMPERSAND = 38;
var C_OPEN_PAREN = 40;
var C_CLOSE_PAREN = 41;
var C_COLON = 58;
var C_SINGLEQUOTE = 39;
var C_DOUBLEQUOTE = 34;
// Some regexps used in inline parser:
var ESCAPABLE = '[!"#$%&\'()*+,./:;<=>?@[\\\\\\]^_`{|}~-]';
var ESCAPED_CHAR = '\\\\' + ESCAPABLE;
var REG_CHAR = '[^\\\\()\\x00-\\x20]';
var IN_PARENS_NOSP = '\\((' + REG_CHAR + '|' + ESCAPED_CHAR + ')*\\)';
var TAGNAME = '[A-Za-z][A-Za-z0-9]*';
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 HTMLCOMMENT = "<!---->|<!--(?:-?[^>-])(?:-?[^-])*-->";
var PROCESSINGINSTRUCTION = "[<][?].*?[?][>]";
var DECLARATION = "<![A-Z]+" + "\\s+[^>]*>";
var CDATA = "<!\\[CDATA\\[[\\s\\S]*?\\]\\]>";
var HTMLTAG = "(?:" + OPENTAG + "|" + CLOSETAG + "|" + HTMLCOMMENT + "|" +
PROCESSINGINSTRUCTION + "|" + DECLARATION + "|" + CDATA + ")";
var ENTITY = "&(?:#x[a-f0-9]{1,8}|#[0-9]{1,8}|[a-z][a-z0-9]{1,31});";
var rePunctuation = new RegExp(/^[\u2000-\u206F\u2E00-\u2E7F\\'!"#\$%&\(\)\*\+,\-\.\/:;<=>\?@\[\]\^_`\{\|\}~]/);
var reHtmlTag = new RegExp('^' + HTMLTAG, '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 reEntityHere = new RegExp('^' + ENTITY, 'i');
var reTicks = /`+/;
var reTicksHere = /^`+/;
var reEllipses = /\.\.\./g;
var reDash = /---?/g;
var reEmailAutolink = /^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/;
var reAutolink = /^<(?:coap|doi|javascript|aaa|aaas|about|acap|cap|cid|crid|data|dav|dict|dns|file|ftp|geo|go|gopher|h323|http|https|iax|icap|im|imap|info|ipp|iris|iris.beep|iris.xpc|iris.xpcs|iris.lwz|ldap|mailto|mid|msrp|msrps|mtqp|mupdate|news|nfs|ni|nih|nntp|opaquelocktoken|pop|pres|rtsp|service|session|shttp|sieve|sip|sips|sms|snmp|soap.beep|soap.beeps|tag|tel|telnet|tftp|thismessage|tn3270|tip|tv|urn|vemmi|ws|wss|xcon|xcon-userid|xmlrpc.beep|xmlrpc.beeps|xmpp|z39.50r|z39.50s|adiumxtra|afp|afs|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|chrome|chrome-extension|com-eventbrite-attendee|content|cvs|dlna-playsingle|dlna-playcontainer|dtn|dvb|ed2k|facetime|feed|finger|fish|gg|git|gizmoproject|gtalk|hcp|icon|ipn|irc|irc6|ircs|itms|jar|jms|keyparc|lastfm|ldaps|magnet|maps|market|message|mms|ms-help|msnim|mumble|mvn|notes|oid|palm|paparazzi|platform|proxy|psyc|query|res|resource|rmi|rsync|rtmp|secondlife|sftp|sgn|skype|smb|soldat|spotify|ssh|steam|svn|teamspeak|things|udp|unreal|ut2004|ventrilo|view-source|webcal|wtai|wyciwyg|xfire|xri|ymsgr):[^<>\x00-\x20]*>/i;
var reSpnl = /^ *(?:\n *)?/;
var reWhitespaceChar = /^\s/;
var reWhitespace = /\s+/g;
var reFinalSpace = / *$/;
var reInitialSpace = /^ */;
var reLinkLabel = /^\[(?:[^\\\[\]]|\\[\[\]]){0,1000}\]/;
// Matches a string of non-special characters.
var reMain = /^[^\n`\[\]\\!<&*_'"]+/m;
var text = function(s) {
var node = new Node('Text');
node._literal = s;
return node;
};
// 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 m = re.exec(this.subject.slice(this.pos));
if (m === null) {
return null;
} else {
this.pos += m.index + m[0].length;
return m[0];
}
};
// Returns the code for the character at the current subject position, or -1
// there are no more characters.
var peek = function() {
if (this.pos < this.subject.length) {
return this.subject.charCodeAt(this.pos);
} else {
return -1;
}
};
// Parse zero or more space characters, including at most one newline
var spnl = function() {
this.match(reSpnl);
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, adding either a backtick code span or a
// literal sequence of backticks.
var parseBackticks = function(block) {
var ticks = this.match(reTicksHere);
if (ticks === null) {
return 0;
}
var afterOpenTicks = this.pos;
var matched;
var node;
while ((matched = this.match(reTicks)) !== null) {
if (matched === ticks) {
node = new Node('Code');
node._literal = this.subject.slice(afterOpenTicks,
this.pos - ticks.length)
.trim().replace(reWhitespace, ' ');
block.appendChild(node);
return true;
}
}
// If we got here, we didn't match a closing backtick sequence.
this.pos = afterOpenTicks;
block.appendChild(text(ticks));
return true;
};
// 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 block's children. Assumes current character
// is a backslash.
var parseBackslash = function(block) {
var subj = this.subject;
var node;
this.pos += 1;
if (this.peek() === C_NEWLINE) {
this.pos += 1;
node = new Node('Hardbreak');
block.appendChild(node);
} else if (reEscapable.test(subj.charAt(this.pos))) {
block.appendChild(text(subj.charAt(this.pos)));
this.pos += 1;
} else {
block.appendChild(text('\\'));
}
return true;
};
// Attempt to parse an autolink (URL or email in pointy brackets).
var parseAutolink = function(block) {
var m;
var dest;
var node;
if ((m = this.match(reEmailAutolink))) {
dest = m.slice(1, m.length - 1);
node = new Node('Link');
node._destination = normalizeURI('mailto:' + dest);
node._title = '';
node.appendChild(text(dest));
block.appendChild(node);
return true;
} else if ((m = this.match(reAutolink))) {
dest = m.slice(1, m.length - 1);
node = new Node('Link');
node._destination = normalizeURI(dest);
node._title = '';
node.appendChild(text(dest));
block.appendChild(node);
return true;
} else {
return false;
}
};
// Attempt to parse a raw HTML tag.
var parseHtmlTag = function(block) {
var m = this.match(reHtmlTag);
if (m === null) {
return false;
} else {
var node = new Node('Html');
node._literal = m;
block.appendChild(node);
return true;
}
};
// Scan a sequence of characters with code cc, 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(cc) {
var numdelims = 0;
var char_before, char_after, cc_after;
var startpos = this.pos;
var left_flanking, right_flanking, can_open, can_close;
char_before = this.pos === 0 ? '\n' :
this.subject.charAt(this.pos - 1);
if (cc === C_SINGLEQUOTE || cc === C_DOUBLEQUOTE) {
numdelims++;
this.pos++;
} else {
while (this.peek() === cc) {
numdelims++;
this.pos++;
}
}
cc_after = this.peek();
if (cc_after === -1) {
char_after = '\n';
} else {
char_after = fromCodePoint(cc_after);
}
left_flanking = numdelims > 0 &&
!(reWhitespaceChar.test(char_after)) &&
!(rePunctuation.test(char_after) &&
!(reWhitespaceChar.test(char_before)) &&
!(rePunctuation.test(char_before)));
right_flanking = numdelims > 0 &&
!(reWhitespaceChar.test(char_before)) &&
!(rePunctuation.test(char_before) &&
!(reWhitespaceChar.test(char_after)) &&
!(rePunctuation.test(char_after)));
if (cc === C_UNDERSCORE) {
can_open = left_flanking && !right_flanking;
can_close = right_flanking && !left_flanking;
} else {
can_open = left_flanking;
can_close = right_flanking;
}
this.pos = startpos;
return { numdelims: numdelims,
can_open: can_open,
can_close: can_close };
};
// Handle a delimiter marker for emphasis or a quote.
var handleDelim = function(cc, block) {
var res = this.scanDelims(cc);
var numdelims = res.numdelims;
var startpos = this.pos;
var contents;
if (numdelims === 0) {
return false;
}
this.pos += numdelims;
if (cc === C_SINGLEQUOTE) {
contents = "\u2019";
} else if (cc === C_DOUBLEQUOTE) {
contents = "\u201D";
} else {
contents = this.subject.slice(startpos, this.pos);
}
var node = text(contents);
block.appendChild(node);
// Add entry to stack for this opener
this.delimiters = { cc: cc,
numdelims: numdelims,
node: node,
previous: this.delimiters,
next: null,
can_open: res.can_open,
can_close: res.can_close,
active: true };
if (this.delimiters.previous !== null) {
this.delimiters.previous.next = this.delimiters;
}
return true;
};
var removeDelimiter = function(delim) {
if (delim.previous !== null) {
delim.previous.next = delim.next;
}
if (delim.next === null) {
// top of stack
this.delimiters = delim.previous;
} else {
delim.next.previous = delim.previous;
}
};
var processEmphasis = function(block, stack_bottom) {
var opener, closer;
var opener_inl, closer_inl;
var nextstack, tempstack;
var use_delims;
var tmp, next;
// find first closer above stack_bottom:
closer = this.delimiters;
while (closer !== null && closer.previous !== stack_bottom) {
closer = closer.previous;
}
// move forward, looking for closers, and handling each
while (closer !== null) {
var closercc = closer.cc;
if (closer.can_close && (closercc === C_UNDERSCORE ||
closercc === C_ASTERISK ||
closercc === C_SINGLEQUOTE ||
closercc === C_DOUBLEQUOTE)) {
// found emphasis closer. now look back for first matching opener:
opener = closer.previous;
while (opener !== null && opener !== stack_bottom) {
if (opener.cc === closer.cc && opener.can_open) {
break;
}
opener = opener.previous;
}
if (closercc === C_ASTERISK || closercc === C_UNDERSCORE) {
if (opener !== null && opener !== stack_bottom) {
// calculate actual number of delimiters used from closer
if (closer.numdelims < 3 || opener.numdelims < 3) {
use_delims = closer.numdelims <= opener.numdelims ?
closer.numdelims : opener.numdelims;
} else {
use_delims = closer.numdelims % 2 === 0 ? 2 : 1;
}
opener_inl = opener.node;
closer_inl = closer.node;
// remove used delimiters from stack elts and inlines
opener.numdelims -= use_delims;
closer.numdelims -= use_delims;
opener_inl._literal =
opener_inl._literal.slice(0,
opener_inl._literal.length - use_delims);
closer_inl._literal =
closer_inl._literal.slice(0,
closer_inl._literal.length - use_delims);
// build contents for new emph element
var emph = new Node(use_delims === 1 ? 'Emph' : 'Strong');
tmp = opener_inl._next;
while (tmp && tmp !== closer_inl) {
next = tmp._next;
tmp.unlink();
emph.appendChild(tmp);
tmp = next;
}
opener_inl.insertAfter(emph);
// remove elts btw opener and closer in delimiters stack
tempstack = closer.previous;
while (tempstack !== null && tempstack !== opener) {
nextstack = tempstack.previous;
this.removeDelimiter(tempstack);
tempstack = nextstack;
}
// if opener has 0 delims, remove it and the inline
if (opener.numdelims === 0) {
opener_inl.unlink();
this.removeDelimiter(opener);
}
if (closer.numdelims === 0) {
closer_inl.unlink();
tempstack = closer.next;
this.removeDelimiter(closer);
closer = tempstack;
}
} else {
closer = closer.next;
}
} else if (closercc === C_SINGLEQUOTE) {
closer.node._literal = "\u2019";
if (opener !== null && opener !== stack_bottom) {
opener.node._literal = "\u2018";
}
closer = closer.next;
} else if (closercc === C_DOUBLEQUOTE) {
closer.node._literal = "\u201D";
if (opener !== null && opener !== stack_bottom) {
opener.node.literal = "\u201C";
}
closer = closer.next;
}
} else {
closer = closer.next;
}
}
// remove all delimiters
while (this.delimiters !== stack_bottom) {
this.removeDelimiter(this.delimiters);
}
};
// 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 === null) {
return null;
} else {
// chop off quotes from title and unescape:
return unescapeString(title.substr(1, title.length - 2));
}
};
// Attempt to parse link destination, returning the string or
// null if no match.
var parseLinkDestination = function() {
var res = this.match(reLinkDestinationBraces);
if (res === null) {
res = this.match(reLinkDestination);
if (res === null) {
return null;
} else {
return normalizeURI(unescapeString(res));
}
} else { // chop off surrounding <..>:
return normalizeURI(unescapeString(res.substr(1, res.length - 2)));
}
};
// Attempt to parse a link label, returning number of characters parsed.
var parseLinkLabel = function() {
var m = this.match(reLinkLabel);
return m === null ? 0 : m.length;
};
// Add open bracket to delimiter stack and add a text node to block's children.
var parseOpenBracket = function(block) {
var startpos = this.pos;
this.pos += 1;
var node = text('[');
block.appendChild(node);
// Add entry to stack for this opener
this.delimiters = { cc: C_OPEN_BRACKET,
numdelims: 1,
node: node,
previous: this.delimiters,
next: null,
can_open: true,
can_close: false,
index: startpos,
active: true };
if (this.delimiters.previous !== null) {
this.delimiters.previous.next = this.delimiters;
}
return true;
};
// IF next character is [, and ! delimiter to delimiter stack and
// add a text node to block's children. Otherwise just add a text node.
var parseBang = function(block) {
var startpos = this.pos;
this.pos += 1;
if (this.peek() === C_OPEN_BRACKET) {
this.pos += 1;
var node = text('![');
block.appendChild(node);
// Add entry to stack for this opener
this.delimiters = { cc: C_BANG,
numdelims: 1,
node: node,
previous: this.delimiters,
next: null,
can_open: true,
can_close: false,
index: startpos + 1,
active: true };
if (this.delimiters.previous !== null) {
this.delimiters.previous.next = this.delimiters;
}
} else {
block.appendChild(text('!'));
}
return true;
};
// Try to match close bracket against an opening in the delimiter
// stack. Add either a link or image, or a plain [ character,
// to block's children. If there is a matching delimiter,
// remove it from the delimiter stack.
var parseCloseBracket = function(block) {
var startpos;
var is_image;
var dest;
var title;
var matched = false;
var reflabel;
var opener;
this.pos += 1;
startpos = this.pos;
// look through stack of delimiters for a [ or ![
opener = this.delimiters;
while (opener !== null) {
if (opener.cc === C_OPEN_BRACKET || opener.cc === C_BANG) {
break;
}
opener = opener.previous;
}
if (opener === null) {
// no matched opener, just return a literal
block.appendChild(text(']'));
return true;
}
if (!opener.active) {
// no matched opener, just return a literal
block.appendChild(text(']'));
// take opener off emphasis stack
this.removeDelimiter(opener);
return true;
}
// If we got here, open is a potential opener
is_image = opener.cc === C_BANG;
// Check to see if we have a link/image
// Inline link?
if (this.peek() === C_OPEN_PAREN) {
this.pos++;
if (this.spnl() &&
((dest = this.parseLinkDestination()) !== null) &&
this.spnl() &&
// make sure there's a space before the title:
(reWhitespaceChar.test(this.subject.charAt(this.pos - 1)) &&
(title = this.parseLinkTitle()) || true) &&
this.spnl() &&
this.peek() === C_CLOSE_PAREN) {
this.pos += 1;
matched = true;
}
} else {
// Next, see if there's a link label
var savepos = this.pos;
this.spnl();
var beforelabel = this.pos;
var n = this.parseLinkLabel();
if (n === 0 || n === 2) {
// empty or missing second label
reflabel = this.subject.slice(opener.index, startpos);
} else {
reflabel = this.subject.slice(beforelabel, beforelabel + n);
}
if (n === 0) {
// If shortcut reference link, rewind before spaces we skipped.
this.pos = savepos;
}
// lookup rawlabel in refmap
var link = this.refmap[normalizeReference(reflabel)];
if (link) {
dest = link.destination;
title = link.title;
matched = true;
}
}
if (matched) {
var node = new Node(is_image ? 'Image' : 'Link');
node._destination = dest;
node._title = title || '';
var tmp, next;
tmp = opener.node._next;
while (tmp) {
next = tmp._next;
tmp.unlink();
node.appendChild(tmp);
tmp = next;
}
block.appendChild(node);
this.processEmphasis(node, opener.previous);
opener.node.unlink();
// processEmphasis will remove this and later delimiters.
// Now, for a link, we also deactivate earlier link openers.
// (no links in links)
if (!is_image) {
opener = this.delimiters;
while (opener !== null) {
if (opener.cc === C_OPEN_BRACKET) {
opener.active = false; // deactivate this opener
}
opener = opener.previous;
}
}
return true;
} else { // no match
this.removeDelimiter(opener); // remove this opener from stack
this.pos = startpos;
block.appendChild(text(']'));
return true;
}
};
// Attempt to parse an entity.
var parseEntity = function(block) {
var m;
if ((m = this.match(reEntityHere))) {
block.appendChild(text(entityToChar(m)));
return true;
} else {
return false;
}
};
// Parse a run of ordinary characters, or a single character with
// a special meaning in markdown, as a plain string.
var parseString = function(block) {
var m;
if ((m = this.match(reMain))) {
if (this.options.smart) {
block.appendChild(text(
m.replace(reEllipses, "\u2026")
.replace(reDash, function(chars) {
return (chars.length === 3) ? "\u2014" : "\u2013";
})));
} else {
block.appendChild(text(m));
}
return true;
} else {
return false;
}
};
// Parse a newline. If it was preceded by two spaces, return a hard
// line break; otherwise a soft line break.
var parseNewline = function(block) {
this.pos += 1; // assume we're at a \n
// check previous node for trailing spaces
var lastc = block._lastChild;
if (lastc && lastc.type === 'Text') {
var sps = reFinalSpace.exec(lastc._literal)[0].length;
if (sps > 0) {
lastc._literal = lastc._literal.replace(reFinalSpace, '');
}
block.appendChild(new Node(sps >= 2 ? 'Hardbreak' : 'Softbreak'));
} else {
block.appendChild(new Node('Softbreak'));
}
this.match(reInitialSpace); // gobble leading spaces in next line
return true;
};
// 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;
// label:
matchChars = this.parseLinkLabel();
if (matchChars === 0) {
return 0;
} else {
rawlabel = this.subject.substr(0, matchChars);
}
// colon:
if (this.peek() === C_COLON) {
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.
// On success, add the result to block's children and return true.
// On failure, return false.
var parseInline = function(block) {
var res = false;
var c = this.peek();
if (c === -1) {
return false;
}
switch(c) {
case C_NEWLINE:
res = this.parseNewline(block);
break;
case C_BACKSLASH:
res = this.parseBackslash(block);
break;
case C_BACKTICK:
res = this.parseBackticks(block);
break;
case C_ASTERISK:
case C_UNDERSCORE:
res = this.handleDelim(c, block);
break;
case C_SINGLEQUOTE:
case C_DOUBLEQUOTE:
res = this.options.smart && this.handleDelim(c, block);
break;
case C_OPEN_BRACKET:
res = this.parseOpenBracket(block);
break;
case C_BANG:
res = this.parseBang(block);
break;
case C_CLOSE_BRACKET:
res = this.parseCloseBracket(block);
break;
case C_LESSTHAN:
res = this.parseAutolink(block) || this.parseHtmlTag(block);
break;
case C_AMPERSAND:
res = this.parseEntity(block);
break;
default:
res = this.parseString(block);
break;
}
if (!res) {
this.pos += 1;
block.appendChild(text(fromCodePoint(c)));
}
return true;
};
// Parse string content in block into inline children,
// using refmap to resolve references.
var parseInlines = function(block) {
this.subject = block._string_content.trim();
this.pos = 0;
this.delimiters = null;
while (this.parseInline(block)) {
}
block._string_content = null; // allow raw string to be garbage collected
this.processEmphasis(block, null);
};
// The InlineParser object.
function InlineParser(options){
return {
subject: '',
delimiters: null, // used by handleDelim method
pos: 0,
refmap: {},
match: match,
peek: peek,
spnl: spnl,
parseBackticks: parseBackticks,
parseBackslash: parseBackslash,
parseAutolink: parseAutolink,
parseHtmlTag: parseHtmlTag,
scanDelims: scanDelims,
handleDelim: handleDelim,
parseLinkTitle: parseLinkTitle,
parseLinkDestination: parseLinkDestination,
parseLinkLabel: parseLinkLabel,
parseOpenBracket: parseOpenBracket,
parseCloseBracket: parseCloseBracket,
parseBang: parseBang,
parseEntity: parseEntity,
parseString: parseString,
parseNewline: parseNewline,
parseReference: parseReference,
parseInline: parseInline,
processEmphasis: processEmphasis,
removeDelimiter: removeDelimiter,
options: options || {},
parse: parseInlines
};
}
module.exports = InlineParser;