If I type an explicit code block such as this:

```
class _MyClass
{
    void foo();
};
```

AsciiDoc syntax parser interprets the underscore in _MyClass as the beginning of the italicized text and makes the rest of the code block and the following text rendered italic in Sublime Text. asciidoctor interprets this correctly: _MyClass is interpreted verbatim and neither the code block nor the following text is italic in the output.