> Using UTF-8 but only the ASCII bits, and using ASCII are the exact same activity, however. Which was my point. The encoding might be different. For ASCII 7 b

> Using UTF-8 but only the ASCII bits, and using ASCII are the exact same activity, however. Which was my point. The encoding might be different. For ASCII 7 bit is fine, for UTF-8 and only ASCII, 8 bits are required and, as you also already point out, the high bit must be set to zero with it. So the point is to name the encoding (UTF-8) of the ASCII characters. And the input was portable code, not user input of a program.