Use a comma with quoted words.

[keannu]

This is a rule for commas. I've always wondered how to use a comma in a quoted part. In "yes", the comma is inserted within the quoted part, so isn't "Yes", she promised possible? While a comma is separated from the beginning part of "saying ".
So for a quoted part, does a comma have to come at the end within the quoted part, and before the start?
ex)Use a comma with quoted words.
"Yes," she promised. Todd replied, saying, "I will be back this afternoon."

[Barb_D]

In American style, it would never be "Yes", she promised. It would only be "Yes," she promised.