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The Chicago Manual specifically deals with technical terms in
quotation marks in Chapter 6. However, the best basis for NOT
including punctuation supports good old horse sense (which
rarely convinces a dogmatic editor unless they're confronted
with a citation) is supported by J. Tarutz in her damned good
book, "Technical Editing", page 180:
"The best justification for breaking a rule in a technical
manual is to make sure the ... information is unambiguous
and accurate."
But her best whammy is on page 178:
"...English punctuation is irrelevant in this situation
because THE PURPOSE OF THE QUOTATION MARKS IS TO SET
APART THE LITERAL USER INPUT (my obscene caps...). For
technical accuracy, the period belongs outside the
quotation marks."
-- and if that ain't enough for your editor, Ms. Tarutz'
book weighs about two pounds, and when properly wielded
should at least get even an intransigent editor's attention...