Make markdownCodeBlock Spell-checkable

[baskerville]

I'd like to be able to enable spell-checking in regions tagged as markdownCodeBlock.

[tpope]

Seems a bit silly, but I suppose adding an option for it wouldn't hurt much.

[baskerville]

Why would it be silly?

[tpope]

Just because I can't name a single language that wouldn't automatically have spelling errors on account of language keywords. C has #endif, JavaScript has var, Ruby and Python have def. Plus, any language that uses camel case is a lost cause.

[baskerville]

I see.

So there's a misunderstanding: I do use code blocks not only for code (e.g. lists of command line options and their respective meaning).

Besides, spell checking is sometimes useful in the languages you mentioned to spell-check comments and strings.

[tpope]

I think a more semantic way to do that would be to highlight just the option as code.

* `--help`: show usage information.

Using code blocks for things that shouldn't even be fixed width falls under my definition of silly.

You can get spell checking inside strings and comments if the syntax file for the language supports it, and you enable fenced code blocks for that language:

let g:markdown_fenced_languages = ['ruby', 'javascript']

```ruby
# This is spell-checked
but_this_isnt = true
```