My understanding is that semicolons are used to separate independent clauses of a sentence, and also to delimit a list wherein one or more members contain a comma.
Regarding the first usage, my understanding is that an independent clause can stand on its own as a complete sentence. Something like "It's getting late; we should head home."
I'm having a bit of trouble squaring that with this sentence from page 1 of
Eats, Shoots & Leaves
By all means congratulate yourself that you are not a pedant or even a stickler; that you are happily equipped to live in a world of plummeting punctuation standards; but just don't bother to go any further.
Being a mere computer nerd visiting here from Stackoverflow, I was hoping some of you English gurus could help me understand how "that you are happily equipped..." and "but just don't bother to go any further" can qualify as complete sentences. Both, and particularly the latter seem like fragments.