[gfm] use new extended email autolink rule to avoid autolinking email addresses in code spans (fixes markedjs#1218)

Author: Feder1co5oave

lib/marked.js

@@ -605,9 +605,8 @@ inline.pedantic = merge({}, inline.normal, {
 
 inline.gfm = merge({}, inline.normal, {
   escape: edit(inline.escape).replace('])', '~|])').getRegex(),
-  url: edit(/^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/)
-    .replace('email', inline._email)
-    .getRegex(),
+  _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
+  url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
   _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
   del: /^~+(?=\S)([\s\S]*?\S)~+/,
   text: edit(inline.text)
@@ -616,6 +615,9 @@ inline.gfm = merge({}, inline.normal, {
     .getRegex()
 });
 
+inline.gfm.url = edit(inline.gfm.url)
+  .replace('email', inline.gfm._extended_email)
+  .getRegex();
 /**
  * GFM + Line Breaks Inline Grammar
  */