fix inline comment and other html blocks

src/rules.js

@@ -18,9 +18,9 @@ const block = {
   html: '^ {0,3}(?:' // optional indentation
     + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
     + '|comment[^\\n]*(\\n+|$)' // (2)
-    + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
-    + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
-    + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
+    + '|<\\?[\\s\\S]*?(?:\\?>\\n*|$)' // (3)
+    + '|<![A-Z][\\s\\S]*?(?:>\\n*|$)' // (4)
+    + '|<!\\[CDATA\\[[\\s\\S]*?(?:\\]\\]>\\n*|$)' // (5)
     + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
     + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
     + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
@@ -197,6 +197,8 @@ inline.punctuation = edit(inline.punctuation).replace(/punctuation/g, inline._pu
 inline._blockSkip = '\\[[^\\]]*?\\]\\([^\\)]*?\\)|`[^`]*?`|<[^>]*?>';
 inline._overlapSkip = '__[^_]*?__|\\*\\*\\[^\\*\\]*?\\*\\*';
 
+inline._comment = edit(block._comment).replace('(?:-->|$)', '-->').getRegex();
+
 inline.em.start = edit(inline.em.start)
   .replace(/punctuation/g, inline._punctuation)
   .getRegex();
@@ -249,7 +251,7 @@ inline.autolink = edit(inline.autolink)
 inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
 
 inline.tag = edit(inline.tag)
-  .replace('comment', block._comment)
+  .replace('comment', inline._comment)
   .replace('attribute', inline._attribute)
   .getRegex();
 

test.js

@@ -0,0 +1,10 @@
+const marked = require('./');
+
+const md = `
+<!-- multi
+line
+comment
+-->
+`;
+
+console.log(marked(md).replace(/\r/g, '\\r').replace(/\n/g, '\\n'));