Added autolink parse

lib/helpers.js

@@ -82,6 +82,16 @@ function getLines(state, begin, end, indent, keepLastLF) {
   return queue.join('');
 }
 
+
+function escapeHtml(str) {
+  if (str.indexOf('&') >= 0) { str = str.replace(/&/g, '&'); }
+  if (str.indexOf('<') >= 0) { str = str.replace(/</g, '&lt;'); }
+  if (str.indexOf('>') >= 0) { str = str.replace(/>/g, '&gt;'); }
+  if (str.indexOf('"') >= 0) { str = str.replace(/"/g, '&quot;'); }
+  return str;
+}
+
+
 exports.isWhiteSpace = isWhiteSpace;
 exports.isEmpty = isEmpty;
 exports.skipEmptyLines = skipEmptyLines;
@@ -89,3 +99,4 @@ exports.skipSpaces = skipSpaces;
 exports.skipChars = skipChars;
 exports.getLines = getLines;
 exports.skipCharsBack = skipCharsBack;
+exports.escapeHtml = escapeHtml;

lib/lexer_inline.js

@@ -17,6 +17,7 @@ rules.push(require('./lexer_inline/newline'));
 rules.push(require('./lexer_inline/escape'));
 //
 //
+rules.push(require('./lexer_inline/autolink'));
 rules.push(require('./lexer_inline/entity'));
 rules.push(require('./lexer_inline/escape_html_char'));
 

lib/lexer_inline/autolink.js

@@ -0,0 +1,57 @@
+// Process autolinks '<protocol:...>'
+
+
+var escape = require('../helpers').escapeHtml;
+
+/*eslint max-len:0*/
+var EMAIL_RE    = /^<([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 AUTOLINK_RE = /^<([a-zA-Z.\-]{1,15}):([^<>\x00-\x20]*)>/;
+var linkPrefix  = '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'.split('|');
+
+module.exports = function autolink(state) {
+  var tail, linkMatch, emailMatch, pos = state.pos;
+
+  if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }
+
+  tail = state.src.slice(pos);
+
+  if (tail.indexOf('>') < 0) { return false; }
+
+  linkMatch = tail.match(AUTOLINK_RE);
+
+  if (linkMatch) {
+    if (linkPrefix.indexOf(linkMatch[1]) < 0) { return false; }
+
+    state.tokens.push({
+      type: 'link_open',
+      href: escape(linkMatch[0].slice(1, -1))
+    });
+    state.tokens.push({
+      type: 'text',
+      content: escape(linkMatch[0].slice(1, -1))
+    });
+    state.tokens.push({ type: 'link_close' });
+
+    state.pos += linkMatch[0].length;
+    return true;
+  }
+
+  emailMatch = tail.match(EMAIL_RE);
+
+  if (emailMatch) {
+    state.tokens.push({
+      type: 'link_open',
+      href: 'mailto:' + escape(emailMatch[0].slice(1, -1))
+    });
+    state.tokens.push({
+      type: 'text',
+      content: escape(emailMatch[0].slice(1, -1))
+    });
+    state.tokens.push({ type: 'link_close' });
+
+    state.pos += emailMatch[0].length;
+    return true;
+  }
+
+  return false;
+};

lib/renderer.js

@@ -2,14 +2,7 @@
 
 
 var assign = require('object-assign');
-
-
-function escapeHtml(str) {
-  return str.replace(/&/g, '&')
-            .replace(/</g, '&lt;')
-            .replace(/>/g, '&gt;')
-            .replace(/"/g, '&quot;');
-}
+var escapeHtml = require('./helpers').escapeHtml;
 
 
 // check if we need to hide '\n' before next token
@@ -98,6 +91,14 @@ rules.paragraph_close = function (tokens, idx /*, options*/) {
 };
 
 
+rules.link_open = function (tokens, idx /*, options*/) {
+  return '<a href="' + tokens[idx].href + '">';
+};
+rules.link_close = function (/*tokens, idx, options*/) {
+  return '</a>';
+};
+
+
 rules.table_open = function (/*tokens, idx, options*/) {
   return '<table>\n';
 };