Check complete ancestry of text nodes for smartquotes eligibility.

[JustinTArthur]

Subject: Fix erroneous application of smartquotes to highlighted inline code roles.

Feature or Bugfix

Bugfix

Purpose

To prevent the smartquotes transformer from transforming text meant to be presented literally, such as text found with the :code: role and a language option set.

Detail

• sphinx's smartquotes transformer already checks text to see if the text's document node is a direct descendent of an element that shouldn't have typographical adjustments. However, it wasn't looking at the full ancestry, so if the text was a sub-sub-element of a document node meant to hint literal presentation, the text ended up having smartquotes' typographical adjustments applied.
• docutils' own smartquotes transformer does not currently have this problem

Relates

• Fixes Smart quotes get applied to highlighted inline code expressions #9564

[tk0miya]

Absolutely! Thank you for your contribution!