pumbols
The only existing collective term for a combination of punctuation (the system or arrangement of marks used to punctuate a written passage) and symbols (a mark or character taken as the conventional sign of some object, idea, function or process). Any text character other than letters and numbers.
A proof-reader scanning a text for punctuation and symbols (pumbols) would be described as engaging in the act of 'pumbolling' - this would also be the application of 'pumbolic logic'.