It says something like: all characters that are not (^) in the range \x20-\x7E (hex 0x20 to 0x7E).
According to http://www.asciitable.com/, those are characters from space to ~.
It says something like: all characters that are not (^) in the range \x20-\x7E (hex 0x20 to 0x7E).
According to http://www.asciitable.com/, those are characters from space to ~.