If you're referring to the period at the end of the sentence, I don't like that rule either. Seems more natural to have the period after the closing quote, at

If you're referring to the period at the end of the sentence, I don't like that rule either. Seems more natural to have the period after the closing quote, at least in cases like this sentence of yours from above: >I can't imagine someone named their language "of", "programming", or "in". But I think there may be cases where period inside and before closing quote may seem better, e.g. if quoting what someone said, like a quoted sentence inside another sentence. But I'm not an English grammar expert.