Are the closed inverted commas after "permission" correct?

There are two sets of quotes, "..." and '...', one nested inside the other. Both sets have to be closed.

GPYThere are two sets of quotes, "..." and '...', one nested inside the other. Both sets have to be closed.

1. "It made me think, 'Oh, maybe I should have got permission'," he says, sounding a little regretful.
2. "It made me think, 'Oh, maybe I should have got permission,"' he says, sounding a little regretful.

I learn

The comma at the end of the quoted part terminates the material within the double quotes. It does not logically belong within the inner quotes. The structure is basically like this:

"It made me think ... ," he says ...

with another quote embedded in the gap.

Correct me if I'm wrong, but I believe that British style allows the two following ways of punctuating the sentence, with a preference for the first:

'It made me think, "Oh, maybe I should have got permission",' he says, sounding a little regretful.
"It made me think, 'Oh, maybe I should have got permission'," he says, sounding a little regretful.

And this is ho

ozzourtiAnd this is how it would be punctuated in American English:"It made me think, 'Oh, maybe I should have got permission,' " he says, sounding a little regretful.

Oh, OK, is that right.

I probably shouldn't have put a space between the single and double closing quotation marks, but a string like '" looks awfully unreadable to me.

ozzourtiI probably shouldn't have put a space between the single and double closing quotation marks, but a string like '" looks awfully unreadable to me.

But I believe it is standard English. I have seen in print.

And I've seen spaces between quotation marks in print.

A lot depends on the type of font you're using and the default spacing between characters.

ozzourtiAnd I've seen spaces between quotation marks in print.A lot depends on the type of font you're using and the default spacing between characters.

Yes, I have seen both ways in print.