[SmartyPants] Incorrect single quote rendered around Markdown links

[jgarber623]

First off, thanks for the hard work on Redcarpet!

I've stumbled upon a weird bit of misbehavior related to Markdown links and SmartyPants that I couldn't find documented in any of the existing issues. I'm using Ruby 2.4.1 and Redcarpet 3.4.0 in a Rails 5.1 app. Details are below, but let me know if I can provide any additional examples or background.

Expected Behavior

I'd expect that a run of Markdown like…

[Jason](https://sixtwothree.org)'s website

…when parsed with Redcarpet::Render::SmartyPants.render would return:

[Jason](https://sixtwothree.org)’s website

Observed Behavior

If the ' is adjacent to the Markdown link code, an unexpected character entity (‘) is returned:

irb(main):011:0> Redcarpet::Render::SmartyPants.render("[Jason](https://sixtwothree.org)'s website")
=> "[Jason](https://sixtwothree.org)‘s website"

If the ' is moved within the anchor text, the expected character entity (’) is returned:

irb(main):012:0> Redcarpet::Render::SmartyPants.render("[Jason's website](https://sixtwothree.org)")
=> "[Jason’s website](https://sixtwothree.org)"

For completion's sake, surrounding the Markdown link code with single ' characters returns:

irb(main):013:0> Redcarpet::Render::SmartyPants.render("'[Jason](https://sixtwothree.org)'s website")
=> "‘[Jason](https://sixtwothree.org)’s website"
irb(main):014:0> 

[robin850]

This has been fixed and will be part of Redcarpet 3.5.0. Thanks for reporting ! :-)

[jgarber623]

Thanks, @robin850!