[ezequiel-garzon]

At least a full fourth of the ASCII code points, 0x00-0x1F, are not printable. A bit more, as we should add del (0x7F) and, according to some though more controversially, space (0x20).

[fsckboy]

the full forth may not be "printable if you define printable as using toner and ignoring positioning". But they aren't escape codes.