[h.] When a quotation is interrupted by such an expression as he said,

1. An extra set of quotation marks is employed, and the interpolated words are normally set off by commas.

2. A question mark or exclamation point should precede the interpolated expression if it would be used were the expression omitted.

3. The expression should be followed by a semicolon if the semicolon would follow the preceding words in case the expression were omitted.

4. Neither the expression nor the words following it should begin with a capital.

[i.] An omission from a quotation is indicated by dots.