I've found "How to punctuate a quote within a quote?" where the correct punctuation for the given example of nested quotes was:
“He leaned close to me, and said in a gravely and drunken voice, ‘It’s not easy.’”
This shows the obvious point of not doubling the full stop, and having it contracted to the end of the sentence inside the quote.
The question has been closed despite dealing with a matter not answered in any linked to questions (they were either about punctuation within normal quotes or about double quoting but not about both at the same time) - though I understand it might be thought to be obvious if the intuitive combination is the correct one. Unfortunately in my case I really suspect "intuitive" is incorrect.
"It’s not easy" is a sentence and so, a full stop comes at its end naturally. Now, is the same rule true if we use quotation marks for other purposes?
Is the below correct?
“Why should I ever hear about this... ‘agency?’”
‘agency’ is quoted for being an euphemism here. Normally the quote mark belongs to the outer question. Is pulling it inside
‘’ correct or should it go between
Next, comes a matter of how to contract multiple conflicting ending punctuation marks. The below example is most likely incorrect, but how would one properly punctuate:
He screwed his eyebrows, and asked, "Are you sure you heard 'Stop!'?".
If the various quote levels contain sentences that require different punctuation at respective ends, how does one reconcile them?