BTW, at least in a Unix terminal you can input the separator characters using Ctl with another char (because terminals inherit from the time when modifier keys

BTW, at least in a Unix terminal you can input the separator characters using Ctl with another char (because terminals inherit from the time when modifier keys just set/unset bits in the input), so: - 28/0x1C FS = Ctl-\ - 29/0x1D GS = Ctl-] - 30/0x1E RS = Ctl-^ - 31/0x1F US = Ctrl-_