Boostnote: Wrong rendering in CodeBlock

[ryochack]

Hi, Boostnote team.
Boostnote is too useful tool and helps me always!

I report a somewhat strange behavior of Boostnote.

Current behavior

The rendering of CodeBlock goes wrong. ( I think this is an exceptional case. )

1. &, <, >, and $ are renderd as HTML numerical character references
2. Appear an unexpected close tag </tag>

Expected behavior

On GFM rendering it seems to be parsed as follows.

```c

?
<
>
$

<tag>

Steps to reproduce

Insert "```x" into the CodeBlock. (x is arbitrary characters)

Environment

• Version : Boostnote 0.11.4
• OS Version and name : macOS Hight Sierra version 10.13.3 and ArchLinux

[Rokt33r]

Looks critical. We should replace markdown renderer fast. I think I could take on it about 2 weeks later.

[pvanlaar]

I have another example of the appearance of a closing tag. The second word inside a tag is parsed as an argument to the tag. I tried it with different languages specified for the highlighting, but that makes no difference.

Maybe it will help you with a fix, but if markdown rendering is replaced it might be obsolete anyway.

Closing tag appears

~~~
std::map<std::string, int> map = boost::assign::map_list_of ("key1", 19) ("key2", 21);
~~~

Output

std::map map = boost::assign::map_list_of ("key1", 19) ("key2", 21);

Space after opening bracket (no closing tag)

~~~
std::map< std::string, int> map = boost::assign::map_list_of ("key1", 19) ("key2", 21);
~~~

Output

std::map< std::string, int> map = boost::assign::map_list_of ("key1", 19) ("key2", 21);

[Flexo013]

This issue is no longer present in the current version of Boostnote.